WO2016194587A1 - Harvester and normal-type combine - Google Patents

Abstract

This harvester is provided with: end-side bearings 105 which rotatably support a rotating support shaft 24a while being respectively supported, in both right and left boss parts 25, at locations 25a, in the boss parts 25, that are farther from an endless rotating transport body; and center-side bearings 106 which rotatably support the rotating support shaft 24a while being supported, between the right and left terminal bearing 105, at locations 25b, in the boss parts 25, that are closer to the endless rotating transport body.

Description

Harvester and ordinary combine harvester

The present invention includes a harvesting machine, and more particularly, a harvesting unit provided in front of the traveling machine body, and a feeder that conveys the harvested product harvested by the harvesting unit toward the traveling machine body, and the feeder is a feeder. A cylindrical boss portion supported by each of the left and right side plate portions of the case, a rotation support shaft supported to be relatively rotatable by the left and right boss portions in a state of being inserted through the left and right boss portions, and the right and left sides The present invention relates to a harvesting machine that includes a rotating ring body that is supported between the side plate portions so as to rotate integrally with the rotating support shaft and is wound around an endless rotating conveyance body.

Further, the present invention relates to a normal combine equipped with a feeder that conveys the harvested cereal grains harvested by the harvesting part at the front of the aircraft toward the rear of the aircraft.

[1] Conventionally, as shown in Patent Document 1, the left and right support cylinder parts (corresponding to boss parts) are far from the endless rotation chain (corresponding to the endless rotation conveyance body) of the support cylinder parts. A boss member is provided with a bearing that is interposed between an end portion on the side and a drive shaft (corresponding to a rotation support shaft) and that fits in a portion located on the center side of the support cylinder portion of the drive shaft. Some of them are provided in a state of being supported on the side wall (corresponding to the side plate portion) of the feeder case via the support plate and the fixing member.

[2] The feeder in the ordinary combine is provided with a drive shaft as a lower rotation shaft inside the lower side in the conveying direction in a cylindrical feeder case, and a pair of feeders spaced apart in the axial direction of the drive shaft A drive sprocket is provided. A pair of endless rotating chains are wound around the pair of sprockets and the driven sprocket on the upper side in the transport direction, and a plurality of transport members are installed over them. And it is comprised so that a harvested grain meal may be conveyed in the rotation path located in the lower side of an endless rotation chain, and a harvested grain meal may be discharged toward the threshing device located in the machine body rear side from a conveyance termination part. ing.

Conventionally, a pair of boss members are provided adjacent to the intermediate side in the lateral direction of each of the pair of drive sprockets, and are formed in a cylindrical shape so as to cover the outer periphery of the drive shaft while being supported across the pair of boss members. Some were provided with a wrapping prevention cover. Note that the wrapping prevention cover is prevented from rotating by a rotation preventing member (for example, see Patent Document 1).

[3] The feeder in the ordinary combine is provided with a drive shaft as a lower side rotation shaft inside the lower side in the conveying direction in a cylindrical feeder case, and a pair of feeders spaced apart in the axial direction of the drive shaft A drive sprocket is provided. A pair of endless rotating chains are wound around the pair of sprockets and the driven sprocket on the upper side in the transport direction, and a plurality of transport members are installed over them. And it is comprised so that a harvested grain meal may be conveyed in the linear movement path located under an endless rotation chain, and a harvested grain meal may be discharged toward the threshing device located in the machine body rear side from a conveyance termination part. ing.

Conventionally, a pair of boss members are provided adjacent to the intermediate side in the lateral direction of each of the pair of drive sprockets, and a cylindrical wrapping prevention cover is provided in a state of being supported across the pair of boss members. There is a configuration in which a wide closing member is provided to close a space between the prevention cover and the lateral frame body located on the upper side in the transport direction from the drive shaft. The closing member is formed wide across the entire width of the lateral intermediate region sandwiched between the left and right boss members, and is connected and fixed to the boss member, and is in contact with the anti-winding cover to prevent winding. The cover is configured to prevent rotation (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 2015-35984

[1] Issues corresponding to the background art [1] are as follows.
When only the part of the rotating support shaft that is far from the endless rotating transport body on the left end side and the right end side is supported by the bearing, a large load is applied to the rotating support shaft due to an increase in the driving load of the endless rotating transport body. When this occurs, the rotation support shaft is easily bent. As the distance between the left and right bearings increases as the length of the boss increases and the distance between the left and right bearings increases, for example, the distance between the input pulley provided at the end of the rotating spindle and the side wall increases. The rotation support shaft is easily bent.
In the conventional case, the left and right end portions of the rotating support shaft can be supported not only by the end side bearing (bearing supported by the boss portion), but also the center portion of the rotating support shaft can be supported by the center side bearing (boss Therefore, it is easy to avoid bending of the rotation support shaft. However, it is necessary to provide a dedicated support structure for supporting the central bearing.

The present invention provides a harvesting machine that can support a rotating spindle so that it is difficult to bend with a simple support structure.

[2] Issues corresponding to the background art [2] are as follows.
In the above conventional configuration, the wrapping prevention cover is formed in a cylindrical shape so as to cover the outer periphery of the drive shaft. Therefore, when the wrapping prevention cover is attached, or when maintenance work such as repair and replacement is performed. However, a troublesome and time-consuming work is required.

In other words, when the anti-winding cover is attached or removed for maintenance, the anti-winding cover is slid in the axial direction with at least one shaft end of the drive shaft open. Troublesome work such as extrapolation to the outer periphery side of the shaft or drawing out to the outside is required. As a result, the work of attaching and removing the wrapping prevention cover is troublesome.

Therefore, it was desired to be able to efficiently attach and remove the wrapping prevention cover.

[3] Issues corresponding to the background art [3] are as follows.
In the above conventional configuration, the space between the wrapping prevention cover and the frame body is closed by a wide closing member, and therefore, in the vicinity of the drive sprocket on the drive shaft by a short cutting operation. There is a disadvantage that the harvested cereals stay and accumulate, the harvested cereals become lumps, and the cereals become clogged, making it impossible to carry the cereals well.

In addition, at the end of the feeder in the conveying direction, many harvested cereals are fed into the threshing device on the rear side of the machine. However, for example, when a long grain is included in the harvested grain culm, the harvested grain culm is sandwiched between the drive sprocket and the endless rotating chain, and moves along the drive sprocket to the upper movement path. Sometimes.

When the end of the endless rotating chain and the drive sprocket is sandwiched and moved to the upper movement path and the end of the end of the endless rotating chain is released, the harvested cereal basket is released and moved downward. Fall into. However, when the long chopped cereal grains move to the upper movement path while being rotated, they are rotated in a posture that extends long in the lateral direction from the portion sandwiched between the drive sprockets. And when it moves to the upper movement path and is released and falls downward, it may be received and deposited by the wide closing member. As a result, the harvested cereals accumulate in a short period of time, and there is a possibility that conveyance clogging may occur. In addition, the endless rotating chain may be stretched by the conveyed cereal lump, and for example, only one endless rotating chain may be extended, and the attitude of the conveying member may be inclined, resulting in conveyance disturbance or conveyance failure.

Therefore, it is hoped that even if a long culm grain culm is included, the risk of causing cereal clogging at the lower position in the transport direction of the feeder is reduced, so that the cereal transportation can be carried out satisfactorily. It was rare.

[1] The means for solving the problem [1] is as follows.
The harvester according to the invention is
A harvesting section provided in front of the traveling aircraft;
A feeder that conveys the harvested product harvested by the harvesting unit toward the rear of the traveling machine body,
The feeder is
A cylindrical boss portion supported by each of the left and right side plate portions of the feeder case;
A rotating spindle that is supported by the left and right boss portions so as to be rotatable relative to the left and right boss portions;
Between the left and right side plate portions, a rotating ring body supported on the rotating support shaft in a state of rotating integrally with the rotating support shaft and wound with an endless rotating conveyance body,
In each of the left and right boss portions, an end-side bearing that rotatably supports the rotating support shaft while being supported at a portion of the boss portion that is far from the endless rotation conveyance body,
A central bearing that rotatably supports the rotating support shaft while being supported at a portion of the boss portion close to the endless rotating conveyance body between the left and right end side bearings.

According to this configuration, not only the left and right end portions of the rotary support shaft that are far from the endless rotating conveyance body are supported by the end side bearings, but also the rotary support shafts are supported by the end side bearings. Since the portion closer to the endless rotating conveyance body than the portion to be moved is supported by the center-side bearing, the rotation support shaft can be supported so that it is difficult to bend regardless of a large load.
Since the central bearing is supported by a portion of the boss portion for supporting the end bearing, which is close to the endless rotating conveyance body, a dedicated support structure for the central bearing is unnecessary.

Therefore, the rotation support shaft can be supported so that it is difficult to bend while the support structure of the rotation support shaft is simple and does not require a dedicated support structure for the center side bearing, and the endless rotating carrier can be supported regardless of an increase in load. It can be driven smoothly.

According to the present invention, in the above-described configuration, the left and right boss portions are positioned over the inside and outside of the feeder case, and the end-side bearing is located at the portion of the boss portion outside the feeder case. It is preferable that a shaft is supported, and the center side bearing supports the rotation support shaft at a portion of the boss portion in the feeder case.

According to this configuration, the left and right end side bearings can support the rotation support shaft with a wide support span, and the center side bearing can support the rotation support shaft at a location close to the endless rotating conveyance body, The rotation support shaft can be supported so as not to bend.

In the present invention, in the above configuration, a polygonal cross-sectional portion is formed in a central portion of the rotation support shaft, and the rotating ring body is fitted to the polygonal cross-sectional portion with different diameters, and the end portion The side bearing is interposed between the outer peripheral portion of the rotary support shaft and the inner peripheral portion of the boss portion, and the center side bearing is an inner portion of a support portion provided on the rotary support shaft so as not to be relatively rotatable. It is preferable to be interposed between the peripheral portion and the outer peripheral portion of the boss portion.

According to this configuration, the rotating wheel body and the rotation support shaft can be connected so as not to rotate relative to each other by a simple connection structure in which the rotating wheel body only fits into the polygonal cross section. Thus, even if the central side portion of the rotation support shaft is formed in a polygonal cross-section portion, the center-side bearing is supported by the outer peripheral portion of the boss portion and does not fit into the polygonal cross-section portion. Thereby, although the center side part of a rotation spindle is a polygonal cross-section part, a center side bearing can be stably supported by a boss | hub part.

In the present invention, in the above configuration, it is preferable that the support portion is connected to the rotating ring body.

According to this configuration, the support portion can be supported on the rotation support shaft in a relatively non-rotatable manner by a simple support structure using a rotating ring body as a connecting member for connecting the support portion to the rotation support shaft.

According to the present invention, in the above-described configuration, in the rotating wheel body, on the side of the rotating support shaft on the center side of the ring body main body around which the endless rotation conveyance body is wound, It is preferable that a tubular portion to be fitted is formed, and the support portion is formed on a side portion on the end portion side of the rotation support shaft with respect to the ring body main body.

According to this configuration, in order to position the cylindrical portion with respect to the rotation support shaft, etc., the cylindrical portion and the rotation support shaft are coupled to each other on the opposite side to the side where the support portion is positioned with respect to the ring body. Easy to work on the side.

In the present invention, in the above configuration, the diameter of the end portion of the boss portion on the central portion side of the rotating support shaft is reduced, and the end portion is inserted into the rotating wheel body until it overlaps with the ring body body. It is preferable.

According to this configuration, the end portion of the boss portion is positioned on the inner peripheral side of the ring body main body in a state of being aligned with the ring body main body in the radial direction of the ring body main body, and the load applied to the ring body main body from the endless rotating conveyance body. In contrast, the ring body is firmly supported by the end of the boss.

In the present invention, in the above configuration, an annular flange that rises from a portion of the outer peripheral portion of the boss portion positioned closer to the end portion side of the rotation support shaft than the central bearing toward the inner peripheral portion of the support portion. It is preferable that the shape portion is located on the inner peripheral side of the support portion.

According to this configuration, dust such as straw scraps can be prevented from entering the side where the central bearing is located from the gap between the boss portion and the support portion by the hook-shaped portion. With a simple measure simply by providing a hook-like portion, it is possible to prevent the rotating support shaft from becoming difficult to rotate due to dust clogging.

In the present invention, in the above-described configuration, the rotating wheel body is provided with a pair of left and right rotating bodies, and a cylindrical cover that covers a portion of the rotating support shaft located between the left and right rotating wheel bodies, and the left and right side plate portions. And a connecting body for connecting the cover and the cover, and the cover is constituted by a divided cover body connected by a fastener, and the connecting body is connected to the divided cover body. It is preferable that the part is fastened together by the fasteners.

According to this configuration, the cover can prevent the cover from rotating due to rotation with the rotating ring body, so that not only the cover can prevent the scrap from being wound around the rotation support shaft, but It can prevent wrapping around the cover.

Also, by connecting the divided cover body with the fastener, the connected body can be connected to the cover at once, and the cover with the connected body can be obtained easily.

[2] The means for solving the problem [2] is as follows.
The characteristic configuration of the ordinary combine according to the present invention is as follows:
A feeder is provided that conveys the harvested cereals harvested by the harvesting part at the front of the aircraft toward the rear of the aircraft,
The feeder is provided with a cylindrical feeder case for transferring cereal grains, a laterally lower rotary shaft installed inside the lower side of the feeder case in the transport direction, and an interval in the axial direction of the lower rotary shaft. A pair of lower-side extension wheels provided on the lower-side rotating shaft, a lateral upper-side rotating shaft erected on the upper side in the conveying direction of the feeder case, and the upper-side rotating shaft. A pair of upper side tensioning wheels provided, a lower side tensioning wheel and the upper side tensioning wheels wound around the upper side tensioning wheel and spaced apart in the axial direction. A cylindrical winding that is extrapolated to the lower-side rotating shaft between the endless rotating body, a plurality of conveying members that are installed horizontally across the pair of endless rotating bodies, and the pair of lower-side extending wheels. With an anti-stick cover,
The winding prevention cover is constituted by a plurality of divided cover bodies divided in the circumferential direction.

According to the present invention, when the anti-winding cover is attached to the outer peripheral side of the lower rotation shaft, both sides in the axial direction of the lower rotation shaft are supported by the bearing member, and the lower rotation shaft A plurality of divided cover bodies can be mounted separately from the radially outer side. Similarly, when removing the wrapping prevention cover, the plurality of divided cover bodies can be removed separately toward the radially outward side of the lower-side rotating shaft.

As a result, there is no need for troublesome operations such as opening the shaft end of the lower rotation shaft and sliding the anti-winding cover in the axial direction to pull it out or pull it out. It has become possible to perform the removal efficiently.

In the present invention,
A pair of boss members positioned at a position adjacent to the intermediate side in the lateral direction of the pair of lower-side extending wheels on the lower-side rotation shaft and supported relatively rotatably on the lower-side rotation shaft; A connecting member for connecting the boss members of each other,
It is preferable that the winding prevention cover covers the connecting member.

According to this configuration, the boss member is provided at a position adjacent to the intermediate side in the lateral direction of each of the pair of lower-side extending wheels, and the pair of boss members are connected by the connecting member. Since the boss member is rotatably supported by the lower-side rotating shaft, it is possible to avoid the exhaust wall or the like from being wound around the outer peripheral portion of the lower-side rotating shaft in the vicinity of the lower-side tensioning wheel. . And since the outer peripheral side of a connection member is covered with a wrapping prevention cover, a connection member is not exposed outside, and it can be made into the thing by which a harvested grain potato is caught and it does not accumulate easily.

In the present invention, it is preferable that the wrapping prevention cover is supported by the connecting member.

According to this configuration, the wrapping prevention cover can be stably supported by effectively using the connecting member for connecting the pair of boss members.

In the present invention, it is preferable that the connecting member is provided with a mounting surface that overlaps with a circumferential end of the divided cover body.

According to this configuration, the connecting member and the divided cover body can be easily connected by overlapping the circumferential end of the divided cover body on the mounting surface.

In the present invention, it is preferable that the attachment surfaces are provided at both ends of the connecting member in the circumferential direction of the anti-winding cover.

According to this configuration, the wrapping prevention cover can be stably supported by connecting the wrapping prevention cover to each of the mounting surfaces provided at both ends in the circumferential direction.

In the present invention, it is preferable that a plurality of fastening locations on the mounting surface in the divided cover body are provided in a state of being aligned along the axial direction of the lower-side rotation shaft.

According to this configuration, the divided cover body can be firmly connected to the mounting surface at a plurality of fastening locations. In addition, since a plurality of fastening locations are provided in a state of being aligned along the axial direction of the lower-side rotation shaft, the space required for mounting can be made compact along the circumferential direction.

In the present invention, on either side or one of the circumferential end portions of the divided cover body, the attachment is performed at a location where the divided cover body located on the outer peripheral side of the divided cover body does not overlap with the adjacent divided cover body. It is preferable that it is fastened to the surface.

According to this configuration, when the split cover body that is fastened to the mounting surface at a location that does not overlap with the adjacent split cover body is released from the fastening with the mounting surface, the adjacent split cover body and the mounting surface are connected. Only the division | segmentation cover body can be removed, maintaining a state.

In the present invention, the connecting member is bolt-connected to the boss members along the axial direction from the intermediate part side of the pair of boss members toward the boss member side,
It is preferable that the connecting portion between the connecting member and the boss member is covered by the divided cover body of any one of the winding prevention covers.

According to this configuration, the connecting member is bolt-connected along the axial direction from the intermediate part side of the pair of boss members toward each boss member side. By connecting the bolts along the axial direction in this way, the connecting member can be accommodated in a compact shape along the radial direction.

Since the connection portion between the connecting member and the boss member is covered with the wrapping prevention cover, the wrapping prevention cover is provided over the pair of boss members. Thus, since the outer peripheral side of a connection location is covered with a wrapping prevention cover, a connection location does not expose outside, and it can be made difficult for a harvested cereal to be caught and deposited.

In the present invention, it is preferable that an upper surface of the divided cover body covering the connecting member is formed in a posture along or substantially along a linear movement path of the endless rotating body.

According to this configuration, the upper surface of the divided cover body covering the connecting member and the linear movement path of the endless rotating body are arranged in parallel or substantially in parallel, so that a sufficiently large space is provided between them. As a result, it is easy to avoid trapping and accumulating dust and the like between the upper surface of the divided cover body and the endless rotating body.

In the present invention, the upper surface of the divided cover body that covers the connecting member is formed on an inclined surface that is inclined so as to approach the linear movement path on the lower side of the endless rotating body toward the upper side of the feeder case. It is preferable.

According to this configuration, since the upper surface of the divided cover body is an inclined surface, straw scraps and the like are connected to the endless rotating body and are transported to the upper transport path of the lower-side tension ring. Then, even if it is placed on the upper surface of the divided cover body, the straw scraps are guided down by the upper surface of the inclined divided cover body and fall downward. As a result, it can be transported appropriately to the lower side in the transport direction under the transport action of the endless rotation belt.

In the present invention, a lateral frame body that is positioned on the upper side in the transport direction than the lower-side rotating shaft and is installed inside the feeder case;
A connection member provided across the wrapping prevention cover and the frame body;
It is preferable that the wrapping prevention cover is supported by the feeder case in a state of being prevented from rotating by the connection member.

According to this configuration, the anti-winding cover is prevented from rotating by the connecting member provided across the frame body and the anti-winding cover. As described above, the anti-winding cover can be prevented from being rotated with a simple configuration by using the horizontal frame body provided in a state of being installed inside the feeder case.

In the present invention, it is preferable that the connection member is provided across any one of the plurality of divided cover bodies and the frame body.

According to this configuration, the connecting member can be shortened by connecting the divided cover body and the frame body that are close to the frame body, and the structure can be simplified.

In the present invention, the connection member includes a first connection body connected to the wrapping prevention cover, and a second connection body connected to the first connection body and connected to the frame body. It is preferable that

Since the connecting member prevents the wrapping prevention cover from rotating, for example, if the connection member is formed of a continuous body that is continuous from the wrapping prevention cover to the frame body, the feeder is assembled. After that, when removing the connecting member for inspection and repair, it is difficult to perform the attaching / detaching operation because the connecting member cannot be rotated around the axis of the lower-side rotating shaft.

Therefore, according to this configuration, the connection member includes the first connection body connected to the anti-wrapping cover and the second connection body connected to the frame body, so that the connection member can be attached and detached in maintenance work. The attachment / detachment work can be easily performed by releasing the connection between the first connection body and the second connection body or changing the relative posture.

In the present invention, it is preferable that the connection member is a plate-like body in a vertical orientation provided across the wrapping prevention cover and the frame body.

According to this configuration, since the connecting member is formed of a vertically oriented plate-like body, it is narrow in a plan view, and trapping and the like falling from between the wrapping prevention cover and the frame body are caught. There is little possibility to do.

In the present invention, it is preferable that an open space opened up and down is formed between the pair of lower-side extending rings between the wrapping prevention cover and the frame body.

According to this configuration, the harvested cereal culm is sandwiched between the lower-side tension ring and the endless rotating body, and moves along the lower-side tension ring while moving with the lower-side tension ring. Even if it falls, it falls to the rotation path located under the endless rotation body through the open space. As a result, the harvested cereal grains that have fallen on the rotation path are conveyed toward the lower side in the conveyance direction by the endless rotation band passing therethrough, and can be prevented from staying.

In the present invention, it is preferable that the connecting member is a horizontally oriented plate-like body provided between the wrapping prevention cover and the frame body.

According to this configuration, when long straw scraps or the like start to wind around the cylindrical winding prevention cover, the connecting member made of a plate-like body in a lateral orientation starts to wind over a wide range in the axial direction. Can catch straw scraps. As a result, it is possible to avoid that the waste scraps and the like are wound around the cylindrical winding prevention cover.

In the present invention, it is preferable that the wrapping prevention cover is provided with a cover side placement support portion for placing and supporting the connection member.

According to this configuration, the end of the connecting member on the side of the wrapping prevention cover is stably supported in a state where it is placed on the cover side placement support portion.

In the present invention, it is preferable that the frame body is provided with a frame-side mounting support portion for mounting and supporting the connection member.

According to this configuration, the end of the connection member on the frame body side is stably supported in a state where it is placed on the frame-side placement support portion.

In the present invention, a cylindrical support portion is provided on the outer side in the axial direction of each of the pair of lower-side extending wheels, and the lower-side rotation shaft is inserted and rotatably supported.
A cylindrical cover portion that covers an end portion of the cylindrical support portion is provided on a side surface on the outer side in the axial direction of the lower-side extending ring body,
It is preferable that an annular hook-shaped portion that rises toward the inner peripheral portion of the cover portion is provided at a location covered by the cover portion in the outer peripheral portion of the cylindrical support portion.

According to this configuration, on the outer side in the axial direction of the lower-side tension ring, the outer periphery of the lower-side tension ring and the cylindrical support portion is formed by the cylindrical cover portion and the annular flange-shaped portion. Since the gap between the parts is narrowed, it is easy to avoid the trapping and the like of the scraps from the gap.

[3] The means for solving the problem [3] is as follows.
The characteristic configuration of the ordinary combine according to the present invention is as follows:
A feeder is provided that conveys the harvested cereals harvested by the harvesting part at the front of the aircraft toward the rear of the aircraft,
The feeder includes a cylindrical feeder case for conveying cereals, a laterally lower rotary shaft installed inside the lower side of the feeder case in the transport direction, and an axial center direction of the lower rotary shaft. A pair of lower-side tensioning wheels provided open, a laterally-oriented upper-side rotating shaft installed inside the upper-side of the feeder case in the transport direction, and an upper-side tension provided on the upper-side rotating shaft A pair of endless rotating bodies wound around the lower ring for extending the lower side and the upper ring for extending the upper side and spaced apart in the axial direction; A plurality of conveying members installed horizontally across a pair of endless rotating bodies and a laterally intermediate portion of each of the pair of lower-side extending wheels on the lower-side rotating shaft are located outside the lower-side rotating shaft. A cylindrical wrapping prevention cover to be inserted, and the lower side rotation A horizontal frame body that is positioned on the upper side in the transport direction from the shaft and is installed inside the feeder case, and transports the harvested cereal meal through a linear movement path that is positioned below the endless rotating body. Configured to discharge the harvested cereals from the conveyance end to the rear side of the machine,
The wrapping prevention cover is supported by the feeder case in a state of being prevented from rotating,
An open space is formed between the winding prevention cover and the frame body so as to be opened up and down across the pair of lower-side tension rings.

According to the present invention, since the wrapping prevention cover is supported by the feeder case in a state of being prevented from rotating, even if the harvested cereal cocoon includes a long cocoon, the chopped cereal masher has an outer periphery of the wrapping prevention cover There is little possibility of being attached to the outer periphery of the anti-winding cover.

And since the open space opened up and down is formed between a pair of lower side extending | stretching ring | wheels between a winding prevention cover and a frame body, possibility that a grain clogging will generate | occur | produce decreases. . In other words, the harvested cereal culm may be sandwiched between the lower-side tensioning wheel and the endless rotating body, and may move along the lower-side tensioning wheel to the upper movement path. However, when it moves to the upper movement path and the pinching between the lower-side tensioning wheel and the endless rotating body is released and released, the harvested cereal culm is moved to the lower side of the endless rotating body through the open space. It falls to the linear movement path that is located. The harvested cereal rice cake that has fallen on the linear movement path is conveyed toward the lower side in the conveying direction by the conveying member passing therethrough.

Therefore, even when a long grain is included in the harvested cereal meal, the harvested grain meal is accumulated, and there is little risk of cereal clogging or conveyance disturbance due to the endless rotating chain extending. It became possible to carry out the cereal conveyance well.

In the present invention, it is preferable that the anti-winding cover is prevented from rotating by a connecting member made of a plate-like body in a vertically oriented posture provided across the anti-winding cover and the frame body.

れ ば According to this configuration, the wrapping prevention cover is prevented from rotating by the connecting member. Since the connecting member is provided over the wrapping prevention cover and the frame body, the wrapping prevention cover can be properly prevented from rotating. Furthermore, since the connecting member is composed of a vertically oriented plate-like body, the connecting member is narrow in plan view, and there is little risk of narrowing the open space, and there is less risk of falling cereal grains being caught and deposited. .

In the present invention,
A pair of boss members that are positioned at positions adjacent to the intermediate side in the lateral direction of each of the pair of lower-side extending wheels on the lower-side rotation shaft, and are rotatably supported by the lower-side rotation shaft; A connecting member that connects the pair of boss members,
The connecting member is bolt-connected to the boss members along the axial direction from the intermediate portion side of the pair of boss members toward the boss members.
It is preferable that the connection portion between the connection member and the boss member is covered with the wrapping prevention cover.

According to this configuration, the boss member is provided at a position adjacent to the intermediate side in the lateral direction of each of the pair of lower-side extending wheels, and the pair of boss members are connected by the connecting member. The connecting member is bolt-connected along the axial direction from the middle part side of the pair of boss members toward each boss member side. By connecting the bolts along the axial direction in this way, the connecting portion can be accommodated in a compact shape along the radial direction.

Since the connection portion between the connecting member and the boss member is covered with the wrapping prevention cover, the wrapping prevention cover is provided over the pair of boss members. Thus, since the outer peripheral side of a connection location is covered with a wrapping prevention cover, a connection location does not expose outside, and it can be made difficult for a harvested cereal to be caught and deposited.

Since the wrapping prevention cover is supported by the feeder case, a pair of boss members are supported by the feeder case, and the boss member can rotate together with the wrapping prevention cover even if the lower rotation shaft rotates. There is little possibility that the harvested cereal wraps around the outer periphery or adheres and accumulates.

In the present invention,
The connecting member is provided between the lower rotation shaft and the frame body;
The winding prevention cover is configured by a plurality of divided cover bodies divided in the circumferential direction, and is configured such that any one of the plurality of divided cover bodies covers the connecting member,
The anti-winding cover is prevented from rotating by a connecting member made of a plate-like body in a vertically oriented posture provided across the anti-winding cover and the frame body,
It is preferable that the connecting member is provided across the divided cover body and the frame body that cover the connecting member.

に よ According to this configuration, the wrapping prevention cover is constituted by a plurality of divided cover bodies divided in the circumferential direction. With the configuration in which the wrapping prevention cover is divided in the circumferential direction in this manner, the wrapping is performed from the radially outer side in a state where the lower rotation shaft and the pair of boss members are assembled in the feeder case. You can attach or remove the protective cover.

And the connecting member is covered with any one of the divided cover bodies of the plurality of divided cover bodies of the anti-winding cover divided in the circumferential direction, and the connecting cover covers the connecting member and the divided cover body and the frame body. Provided. A connection member is provided in the location located between a lower side rotating shaft and a frame body among the circumferential direction whole areas of the boss member which covers the outer periphery of a lower side rotating shaft. That is, since the connecting member is provided at a position closest to the frame body in the circumferential direction of the lower rotation shaft, the divided cover body that covers the connecting member is also provided at a position close to the frame body.

As a result, the workability of assembling the wrapping prevention cover is improved, the connecting member for connecting the divided cover body and the frame body located near the frame body can be shortened, and the structure can be simplified. it can.

In the present invention, it is preferable that the upper surface of the divided cover body that covers the connecting member is formed on an inclined surface that becomes lower as it is located on the frame body side.

According to this configuration, the divided cover body that covers the connecting member located between the lower-side rotation shaft and the frame body is inclined so that the upper surface thereof is positioned lower as it is located on the frame body side. Even if the harvested cereal rice cake moves along with the lower-side tension ring and moves to the upper movement path, it may fall down and fall on the upper surface of the split cover body that covers the connecting member, The mowing cereal can be flowed down and directed toward the frame body along the inclined surface without being deposited on the upper surface, and can be dropped onto the linear movement path of the lower endless rotating body.

In the present invention,
The winding prevention cover is constituted by a plurality of divided cover bodies divided in the circumferential direction,
A connecting member made of a plate-like body in a vertical orientation provided across the wrapping prevention cover and the frame body;
A first connecting body connected to any one of the plurality of divided cover bodies; a second connecting body connected to the first connecting body and connected to the frame body; It is preferable to have

Since the connecting member prevents the wrapping prevention cover from rotating, for example, if the connection member is formed of a continuous body that is continuous from the wrapping prevention cover to the frame body, the feeder is assembled. After that, when removing the connecting member for inspection and repair, it is difficult to perform the attaching / detaching operation because the connecting member cannot be rotated around the axis of the lower-side rotating shaft.

Therefore, according to this configuration, the connection member includes the first connection body connected to one of the divided cover bodies and the second connection body connected to the frame body. When doing so, the attachment / detachment operation can be easily performed by releasing the connection between the first connection body and the second connection body or changing the relative posture.

It is a figure which shows 1st Embodiment (it is hereafter the same as FIG. 18), and is a side view which shows the whole combine. It is a top view which shows the whole combine. It is a vertical side view which shows a feeder. It is a cross-sectional top view which shows a feeder. It is a cross-sectional top view which shows the conveyance termination side of a feeder. It is a vertical front view which shows the conveyance termination side of a feeder. It is sectional drawing which shows a rotating ring body. It is a side view which shows the reinforcement structure of a feeder case. It is a perspective view which shows a reinforcement member. It is a perspective view which shows the cover of a decomposition | disassembly state. It is a side view which shows an operation part. It is a top view which shows an operation part and a dust removal apparatus. It is sectional drawing which shows the rotary ring body provided with another implementation structure. It is a top view which shows the rotating spindle with which the winding prevention cover provided with another implementation structure was mounted | worn. FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG. 14. It is a perspective view which shows the winding prevention cover of a decomposition | disassembly state. It is a top view which shows the dust removal apparatus provided with another implementation structure. It is a front view which shows the state which the dust removal case of the dust removal apparatus provided with another implementation structure opened. It is a figure which shows 2nd Embodiment (it is hereafter the same as FIG. 31), and is a whole side view of a normal type combine. It is a whole top view of a normal combine. It is a vertical side view of a feeder. It is a cross-sectional top view of a drive shaft arrangement | positioning part. It is a cross-sectional top view of a drive shaft arrangement | positioning part. FIG. 24 is a sectional view taken along line XXIV-XXIV in FIG. It is a disassembled perspective view which shows the attachment structure of a winding prevention cover. It is a cross-sectional top view which shows the support structure of a tension ring. It is a vertical side view of the feeder of another embodiment. It is a vertical side view of the drive shaft arrangement | positioning part of another embodiment. It is a vertical side view of the drive shaft arrangement | positioning part of another embodiment. It is a cross-sectional top view of the drive shaft arrangement | positioning part of another embodiment. It is a cross-sectional top view of the drive shaft arrangement | positioning part of another embodiment.

[First Embodiment]
The first embodiment will be described below with reference to FIGS.
A case where the harvester according to the first embodiment of the present invention is applied to a combine will be described. FIG. 1 is a side view showing the entire combine. FIG. 2 is a plan view showing the entire combine. 1 and 2, F is defined as “front” of the traveling aircraft body, B is defined as “rear” of the traveling aircraft body, L is defined as “left” of the traveling aircraft body, and R is defined as “right” of the traveling aircraft body.

As shown in FIGS. 1 and 2, the combine includes a traveling machine body equipped with a pair of left and right crawler traveling devices 2 so as to be driven at the lower part of the machine body frame 1. A driving unit 3 is provided at the front of the traveling machine body. A threshing device 4 and a grain tank 5 are provided at the rear of the traveling machine body. The threshing device 4 and the grain tank 5 are arranged in the lateral direction of the traveling machine body.

A harvesting section 7 is provided in front of the traveling aircraft. Specifically, the feeder 6 is extended from the front part of the threshing device 4 toward the front of the machine body. A harvesting section 7 is connected to the extending end of the feeder 6. An engine 8 is provided at a location below the driving unit 3 in the traveling machine body. The engine 8 is configured to transmit the output of the engine 8 to the crawler traveling device 2, the threshing device 4, the feeder 6, and the harvesting unit 7.

The feeder 6 is supported by the threshing device 4 so as to be swingable up and down. By swinging the feeder 6 up and down by the lift cylinder 9, the lowering posture of the harvesting unit 7 with the harvesting device 10 positioned near the farm scene and the state where the harvesting device 10 is separated upward from the farm scene. Can be raised and lowered to the non-working posture.

The combine performs harvesting work such as rice and wheat by running the traveling machine with the harvesting section 7 in the lowered work posture.

The harvesting unit 7 cuts the planted cereal and sends it back. The harvesting unit 7 is specifically configured as shown in FIGS.

The harvesting unit 7 includes a harvesting unit frame 11. The harvesting part frame 11 is connected to the front end of the feeder 6 at the rear end. A transport deck 12 is provided at the bottom of the harvesting unit frame 11. A cutting device 10 is provided at the front end of the transfer deck 12. A pair of left and right dividers 13 are provided at the front end of the harvesting part frame 11. A scraping rotary reel 14 is provided above the reaping device 10. A transverse feed auger 15 and a rotary conveyance body 16 are provided above the conveyance deck 12.

The planted culm to be harvested among the planted culms located in front of the traveling machine body is introduced into the harvesting part frame 11 by the left and right dividers 13. The tip side of the introduced planted culm is scraped backward by the scraping rotary reel 14. The introduced planted culm stock is cut by the reaping device 10 and the planted cereal is harvested. The harvested cereal meal is supplied to the rotary carrier 16 by the lateral feed auger 15 and sent out to the rear of the harvesting unit 7 by the rotary carrier 16.

As shown in FIG. 3, a delivery port 17 is formed in the rear wall portion of the harvesting portion frame 11. The delivery port 17 faces the rotary carrier 16. The rotary carrier 16 includes a rotary drum 16a and a plurality of scraping arms 16b. The rotary conveyance body 16 is rotationally driven by the lateral feed auger 15. The harvested cereal meal supplied to the rotary transport body 16 is transported along the transport deck 12 by scraping by each scraping arm 16b, and is fed backward from the feed outlet 17.

The whole of the harvested cereal rice bran from the rotating carrier 16 to the tip is conveyed by the feeder 6 toward the rear of the traveling machine body and supplied to the threshing device 4. The threshing device 4 performs the threshing process by the handling cylinder 4a (see FIG. 6) that introduces and rotates the whole of the supplied harvested cereal culm from the stock source to the tip of the cereal culm. The threshing device 4 performs a sorting process for separating the grain obtained by the threshing process from dust such as straw scraps. The grain after the sorting process is conveyed from the threshing device 4 to the grain tank 5 and stored in the grain tank 5. The grain tank 5 is provided with a discharge auger 5a. The grain stored in the grain tank 5 can be taken out by the discharge auger 5a.

The feeder 6 will be described.
FIG. 3 is a longitudinal side view showing the feeder 6. FIG. 4 is a cross-sectional plan view showing the feeder 6. As shown in FIGS. 3 and 4, the feeder 6 includes a feeder case 20 and a pair of left and right endless rotating conveyance bodies 21.

The feeder case 20 includes a bottom plate portion 20a, a pair of left and right side plate portions 20b, and a top plate portion 20c. The left side plate portion 20b is connected across the left end side of the bottom plate portion 20a and the left end side of the top plate portion 20c. The right side plate portion 20b is connected across the right end side of the bottom plate portion 20a and the right end side of the top plate portion 20c. The bottom plate portion 20a is made of a stainless steel plate. The left and right side plate portions 20b and the top plate portion 20c are made of iron plates. The feeder case 20 is configured in a cylindrical shape. On the feed start end side (front end side) of the feeder case 20, a cereal introduction port 6F is formed. The cereal introduction port 6F communicates with the delivery port 17 of the harvesting section 7. At the conveyance end side (rear end side) of the feeder case 20, a grain outlet 6R is formed. The grain sending outlet 6R communicates with the inside of the threshing apparatus 4. An inspection port 95 is provided in a portion of the top plate portion 20c on the conveyance end side. The inspection port 95 can be opened and closed by removing the lid 96.

A start-end-side rotating wheel body 23 is provided inside the feeder case 20 on the transfer start-end side. A termination-side rotating wheel body 24 is provided inside the feeder case 20 on the conveyance termination side. The start-end-side rotating wheel body 23 and the terminal-side rotating wheel body 24 are supported by the left and right side plate portions 20b so as to rotate around the rotation axis center along the airframe lateral direction. A pair of left and right endless rotating conveyance bodies 21 are wound around the start end side rotating wheel body 23 and the terminal end side rotating wheel body 24.

The starting end side rotating wheel body 23 is rotatable, but is fixed to the mounting position of the left and right side plate portions 20b. The attachment position of the starting end side rotating wheel body 23 in the feeder case 20 does not change regardless of the tensioning operation of the left and right endless rotating transport bodies 21 by the tension mechanism 30.

A cylindrical boss portion 25 extending in the lateral direction of the traveling machine body is provided on each of the left and right side plate portions 20b. The terminal-side rotating wheel body 24 is supported by the left and right boss portions 25. The left and right boss portions 25 are fixed to the side plate portion 20b, and the terminal-side rotating wheel body 24 is rotatable, but is fixed to the mounting position of the left and right side plate portions 20b. The attachment position of the terminal-side rotating wheel body 24 in the feeder case 20 does not change regardless of the tensioning operation of the left and right endless rotating conveyance bodies 21 by the tension mechanism 30.

As shown in FIGS. 4 and 5, the terminal-side rotating wheel body 24 includes a rotating support shaft 24a and a pair of left and right rotating wheel bodies 24b. The left and right rotating wheel bodies 24b are constituted by chain sprockets. Hereinafter, the rotating wheel body 24b is referred to as a sprocket 24b. The left and right sprockets 24b are supported by the rotation support shaft 24a so as not to rotate relative to each other.

As shown in FIGS. 4 and 6, a belt pulley 27 is provided at the end of the rotating support shaft 24a protruding leftward from the left boss portion 25 so as not to be relatively rotatable. A transmission case 100 is provided at the front of the threshing device 4. An input shaft 101 is provided on the right side portion of the transmission case 100. An output shaft 102 is provided on the left side portion of the transmission case 100. A plurality of output pulleys 103 are provided on the output shaft 102 so as not to rotate relative to each other. In this embodiment, three output pulleys 103 are provided. A driving force from the engine 8 is transmitted to the input shaft 101. The driving force of the input shaft 101 is transmitted from the rear part of the transmission case 100 to the handling cylinder 4 a of the threshing device 4. The three output pulleys 103 are configured to be transmitted from the two output pulleys 103 on the inner side of the machine body to the sorting unit of the threshing device 4. The transmission belt 104 is wound around the output pulley 103 and the belt pulley 27 that are located on the outermost lateral side of the body among the three output pulleys 103.

The pair of left and right endless rotating transport bodies 21 are constituted by an endless rotating chain. The left endless rotating conveyance body 21 is wound around a start-end-side rotating wheel body 23 and a left sprocket 24b. The right endless rotating conveyance body 21 is wound around a start-end-side rotating wheel body 23 and a right sprocket 24b. At a plurality of locations in the longitudinal direction (rotation direction) of the endless rotating transport body 21, transport slats 29 are attached across the left and right endless rotating transport bodies 21.

The feeder 6 supplies the threshing cereal from the rotary carrier 16 to the threshing device 4 by the following operation.
The terminal-side rotating wheel body 24 is driven by the belt pulley 27, and the left and right endless rotating transport bodies 21 are driven to rotate in the rotating direction F (see FIG. 3) by the sprocket 24b. The conveying slat 29 is transported downward from the upper side of the starting end side rotating wheel body 23 to the lower side in the starting end side rotating wheel body 23. The transporting slats 29 that are transported downward act on the harvested cereal meal. The harvested cereal meal from the rotary transport body 16 is scraped between the endless rotating transport body 21 and the bottom plate portion 20a by the transport slat 29 at the grain shed introduction opening 6F. The harvested cereal culm is transported rearward along the bottom plate portion 20a by the transport action through the transport slats 29 of the left and right endless rotating transport bodies 21. The transport slat 29 is lifted and transferred from the lower side to the upper side of the terminal side rotating wheel body 24 in the terminal side rotating wheel body 24. The transporting slats 29 that are moved up and forward act to feed the harvested cereal meal. The harvested cereals that have been transported to the transport end are fed backward from the cereal feed outlet 6 </ b> R by the transport slats 29 and supplied to the threshing device 4.

As shown in FIG. 5, the rotation support shaft 24 a of the terminal-side rotating wheel body 24 is rotatably supported by the left and right boss portions 25 in a state where the left and right boss portions 25 are inserted.
Specifically, each of the left and right boss portions 25 supports the end-side bearing 105 at a portion 25 a far from the endless rotating transport body 21, and the center-side bearing 106 at a portion 25 b close to the endless rotating transport body 21. The rotary support shaft 24a is rotatably supported via the end side bearing 105 and the center side bearing 106. The central bearing 106 is located between the left and right end bearings 105. In the present embodiment, the end side bearing 105 and the center side bearing 106 are constituted by bearings, but they are not limited to bearings, and may be constituted by oil-impregnated bearings, impregnated metals, or the like. Of the rotating support shaft 24 a, the portions far from the endless rotating transport body 21 on the left end side and the right end side are not only supported by the end side bearing 105, but also supported by the end portion side bearing 105 of the rotating support shaft 24 a. A portion closer to the endless rotating transport body 21 than the portion to be moved is supported by the central bearing 106. Even if a large load is applied to the rotation support shaft 24a due to an increase in the driving load of the endless rotating conveyance body 21, the rotation support shaft 24a is supported so that it is difficult to bend.

As shown in FIG. 5, the left and right boss portions 25 are provided so as to be located over the inside and outside of the feeder case 20. The end side bearing 105 in each of the left and right boss portions 25 is provided so as to support the rotation support shaft 24a at a portion of the boss portion 25 outside the feeder case. The central bearing 106 in each of the left and right boss portions 25 is provided so as to support the rotation support shaft 24a at a portion of the boss portion 25 in the feeder case. In the present embodiment, the central bearing 106 is provided to be supported by a portion of the boss portion 25 in the feeder case, but is not limited to being provided in the feeder case, and may be provided to be supported by a portion outside the feeder case. . Since the belt pulley 27 is interlocked and connected to the output pulley 103 on the outermost lateral side of the body among the three output pulleys 103 by the transmission belt 104, the length of the boss portion 25 extending from the feeder case 20 to the lateral outer side is long. In this case, the left and right end side bearings 105 can support the rotation support shaft 24a with a wide support span. Even if the support spans of the left and right end bearings 105 are widened, the center bearing 106 can support a portion of the rotating support shaft 24a that is close to the endless rotating conveyance body 21.

As shown in FIG. 5, circular cross sections 24 </ b> M are formed at both end portions of the rotation support shaft 24 a, and the left and right end side bearings 105 respectively include an outer peripheral portion of the circular cross section 24 </ b> M and an inner peripheral portion of the boss portion 25. It is intervened between.

As shown in FIGS. 5 and 7, a polygonal cross section 24K is formed in the central portion of the rotation support shaft 24a, and each of the pair of left and right sprockets 24b is fitted to the polygonal cross section 24K with different diameters. Yes. Specifically, the polygonal cross-section 24K of the rotation support shaft 24a is configured such that the longitudinal cross-sectional shape is a hexagonal shape. In each of the pair of left and right sprockets 24b, the cylindrical portion 108 is externally fitted to the polygonal cross section 24K, the hexagonal inner peripheral shape of the cylindrical portion 108, and the hexagonal outer peripheral shape of the polygonal cross sectional portion 24K. The cylindrical portion 108 and the polygonal cross-sectional portion 24K are engaged with each other so as not to be relatively rotatable. A positioning bolt 109 is provided on the tubular portion 108. The sprocket 24b can be fixed at the mounting position on the rotation support shaft 24a by tightening the positioning bolt 109 and engaging with the rotation support shaft 24a. In the present embodiment, the longitudinal sectional shape of the polygonal cross section 24K is a hexagonal shape, but it is not limited to a hexagonal shape, and may be formed in a rectangular shape, a pentagonal shape, or the like.

A pair of left and right cylindrical support portions 107 are provided on the polygonal cross section 24K of the rotation support shaft 24a so as not to rotate relative to each other, and each of the pair of left and right center side bearings 106 is connected to the rotation support shaft 24a of the boss portion 25. It is interposed between the outer peripheral part of the end part 25 b (part 25 b close to the endless rotating transport body 21) on the center side and the inner peripheral part of the support part 107. Each of the pair of left and right support portions 107 is connected to the sprocket 24b so as to be non-rotatable relative to the polygonal cross section 24K.

As shown in FIGS. 5 and 7, in each of the pair of left and right sprockets 24b, a cylinder is formed on the side of the central portion side of the rotation support shaft 24a with respect to the ring body main body 24H around which the endless rotation conveyance body 21 is wound. A shaped portion 108 is formed, and a support portion 107 is formed on a side portion on the end side of the rotation support shaft 24a with respect to the ring body main body 24H. The respective end portions 25b of the left and right boss portions 25 are formed in a state of being reduced in diameter so that the outer diameter is smaller than a portion different from the end portion 25b, such as a portion supporting the end portion side bearing 105. The end portion 25b is inserted into the sprocket 24b up to a position where it overlaps with the ring body main body 24H and the central bearing 106. The end portion 25b of the boss portion 25 is positioned on the inner peripheral side of the ring body main body 24H in a state of being aligned with the ring body main body 24H in the radial direction of the ring body main body 24H, and the load applied to the ring body main body 24H from the endless rotating conveyance body 21. Against this, the ring body 24H can be firmly supported by the end 25b of the boss 25.

In each of the pair of left and right sprockets 24b, a hole circlip 110, a resin collar 111, an oil seal 112, and a dust seal 113 are interposed between the support portion 107 and the boss portion 25. The dust seal 113 constitutes an annular bowl-shaped portion that rises from a portion of the outer peripheral portion of the boss portion 25 located closer to the end portion side of the rotation support shaft 24 a than the central bearing 106 toward the inner peripheral portion of the support portion 107. To do. The hook-shaped portion can prevent dust such as straw scraps from entering the side where the central bearing 106 is located from the gap between the boss portion 25 and the support portion 107. As the bowl-shaped portion, not only the dust seal 113 but also an annular member made of metal or resin can be adopted. Moreover, as a hook-shaped part, the member integrally formed in the boss | hub part 25 is not restricted to the member different from the boss | hub part 25, but can be employ | adopted.

Each of the left and right boss portions 25 includes a boss portion body 25H and an extended boss portion 25E that are separately formed and connected. A portion of the boss portion 25 that supports the end side bearing 105 and a connecting member 26 described later is constituted by a boss portion main body 25H. The part which supports the center side bearing 106 among the boss | hub parts 25 is comprised by the extended boss | hub part 25E.

As shown in FIG. 4, a connecting member 26 is attached to each of the left and right boss portions 25 so as to be relatively rotatable. The left and right connecting members 26 are connected to the threshing device 4 as shown in FIG. 6 to support the feeder 6 so that the threshing device 4 can swing up and down. A sprocket 28 is provided in a portion that protrudes outward from the right boss portion 25 of the rotation support shaft 24a so as not to be relatively rotatable. The sprocket 28 transmits the driving force of the rotation support shaft 24 a to the harvesting unit 7.

As shown in FIG. 4, a cylindrical cover 80 is attached to the terminal-side rotating wheel body 24. The cover 80 covers a portion between the left and right sprockets 24b of the rotation support shaft 24a. The left and right end portions of the cover 80 are engaged with the groove-type support portions 24c of the left and right sprockets 24b so as to be relatively rotatable. A connecting body 90 is connected across the cover 80 and the reinforcing member 70. The connecting body 90 prevents the cover 80 from rotating with the sprocket 24b. The connecting body 90 is connected to a bracket 70 a included in the reinforcing member 70 by a connecting bolt. The cover 80 prevents straw scraps and the like from being wound around the rotation support shaft 24a. The connecting body 90 prevents the cover 80 from being rotated with the sprocket 24b, and prevents the cover 80 from being wrapped with straw scraps.

The cover 80 is constituted by four divided cover bodies 81, 82, 83, 84 as shown in FIGS.
That is, as shown in FIG. 10, each of the four divided cover bodies 81 to 84 is configured to have a semicircular longitudinal cross-sectional shape. Reinforcing ribs 98 extending in the circumferential direction of the cover 80, reinforcing ribs 99 extending in the direction along the axis of the cover 80, and columnar connecting portions 88 are provided on the inner peripheral surfaces of the four divided cover bodies 81 to 84. Yes. In the present embodiment, each of the divided cover bodies 81 to 84 is made of synthetic resin, but is not limited to resin, but may be made of sheet metal.

As shown in FIGS. 4, 5, and 6, the longest first divided cover body 81 among the four divided cover bodies 81, 82, 83, 84 has both ends at the support portions 24 c of the left and right sprockets 24 b. Can be mounted between the left and right sprockets 24b. As shown in FIG. 7, a gap S <b> 2 that allows the oil seal 112 to slide is formed between the cylinder portion that houses the oil seal 112 of the sprocket 24 b and the boss portion 25. An interval D1 between the oil seal 112 and the dust seal 113 is set wider than an interval D2 between the tubular portion 108 and the boss portion 25. That is, when the first divided cover body 81 is mounted between the left and right sprockets 24b, the space between the left and right sprockets 24b can be widened by sliding the sprocket 24b toward the boss portion 25.

4 and 6, the second divided cover body 82 of the four divided cover bodies 81, 82, 83, 84 is the first divided cover body 81 mounted between the left and right sprockets 24b. A screw type over the connecting portion 88 of each of the second divided cover body 82 and the first divided cover body 81 with the left end overlapped with the left end and engaged with the support 24c of the left sprocket 24b. Are attached to the first divided cover body 81 by being fastened and fixed to the first divided cover body 81.

As shown in FIGS. 4 and 6, the third divided cover body 83 among the four divided cover bodies 81, 82, 83, 84 is the first divided cover body 81 mounted between the left and right sprockets 24b. A screw type over the connecting portion 88 of each of the third divided cover body 83 and the first divided cover body 81 with the right end portion overlapped with the right end side and engaged with the support portion 24c of the right sprocket 24b. Are attached to the first divided cover body 81 by being fastened and fixed to the first divided cover body 81.

As shown in FIGS. 4 and 6, the fourth divided cover body 84 of the four divided cover bodies 81, 82, 83, 84 is assembled with the second divided cover body 82 and the third divided cover body 83. Of the first divided cover body 81 in a state of being stacked, the fourth divided cover body 84 and the first divided cover are superposed on a portion between the second divided cover body 82 and the third divided cover body 83. A screw-type fastener 89 is mounted over each connecting portion 88 of the body 81 and is fastened and fixed to the first divided cover body 81 to be assembled to the first divided cover body 81.

The second divided cover body 82 and the third divided cover body 83 are configured to have the same shape, size and structure. In other words, the second divided cover body 82 can be assembled on the right end side of the first divided cover body 81 by replacing the third divided cover body 83 with the third divided cover body 83, and the third divided cover body 83 can be assembled with the first divided cover body 83. The second divided cover body 82 can be replaced and assembled on the left end side of the body 81.

The connecting body 90 is fastened and fastened together with a fastener 89 to the connecting portion 88 of the fourth divided cover body 84.
That is, the connection hole 90 a is provided at one end of the connection body 90. By attaching and fastening the fastener 89 attached to the connecting hole 90a over the connecting portion 88 of the fourth divided cover body 84 and the connecting portion 88 of the first divided cover body 81, a fourth divided cover body is obtained. 84 can be fastened and connected to the first divided cover body 81, and the connecting body 90 can be fastened and fixed to the connecting portion 88 of the fourth divided cover body 84 together with this fastening. The fourth divided cover body 84 is fastened and connected to the first divided cover body 81 by a fastener 89 to assemble the cover 80, and the connecting body 90 is connected to the fourth divided cover body 84 of the cover 80. I can do it all at once.

As shown in FIG. 4, the reinforcing member 70 is laid across the left and right side plate portions 20b. By making the space between the reinforcing member 70 and the cover 80 relatively wide, it is difficult to catch the cereals that have not entered the threshing device 4 and have flowed back to the upper side of the sprocket 24b across the cover 80 and the reinforcing member 70. Further, the gap S3 between the reinforcing member 70 and the cover 80 on both lateral sides of the connecting body 90 is widened so that the backflowed cereal can easily fall from the gap S3 to the bottom plate portion 20a of the feeder case 20.

As shown in FIG. 4, the left and right boss portions 25 are connected to the reinforcing member 70 by a connecting body 69 inside the feeder case 20. As shown in FIGS. 4, 5, and 8, reinforcing members 91, 92, 93, 94 and a pair of upper and lower reinforcing members 97 are provided on the outer surface sides of the left and right side plate portions 20 b. The reinforcing member 91 is formed of a bent sheet metal, and is attached over a portion of the side plate portion 20b that is positioned on the front side of the reinforcing member 70 and a portion where the boss portion 25 is provided. A bent columnar portion 91 a is provided at the front end portion of the reinforcing member 91. The bent columnar portion 91a is formed so as to extend in the vertical direction of the feeder case 20 and has a U-shaped cross section. The reinforcing member 92 is formed of a bent sheet metal and is attached to the front surface side of the reinforcing member 91. The reinforcing member 93 extends forward from the boss portion 25. The pair of upper and lower reinforcing members 97 are connected across the front end portion of the reinforcing member 93 and the surface side of the reinforcing member 91. The reinforcing member 94 is connected across the rear end portion of the reinforcing member 92 and the front end portion of the reinforcing member 93. Even if the gap between the cover 80 and the reinforcing member 70 is widened, the strength of the feeder case 20 can be secured by this reinforcing structure.

As shown in FIGS. 1 and 2, a dust exhaust device 115 is provided at the front of the feeder 6. The dust removal device 115 includes a dust suction fan 115a that is rotationally driven by the electric motor 115b. The dust removal device 115 sucks dust that has entered the feeder case 20 into the dust discharge case 116 through the dust suction port 20d of the top plate portion 20c. The dust is discharged from a discharge port that opens downward at the lateral end of the dust removal case 116. A plurality of capturing members 116a are provided in the dust suction port 20d. In the present embodiment, the capturing member 116a is formed of a round bar-shaped bar member. The cereals flowing toward the dust suction fan 115a are captured by the capturing member 116a.

As shown in FIGS. 1, 2, and 11, an operation panel 117 is provided in a side portion of the driver seat 120 in the driver 3. The operation panel 117 is provided with a main transmission lever 119 and a sub transmission lever 121. A breaker switch 118 for the dust removal device is provided in a portion of the operation panel 117 near the main transmission lever 119. When the mowing clutch is engaged, operating the breaker switch 118 to activate the dust suction fan 115a. Since the breaker switch 118 is located near the main speed change lever 119 that is easy to operate from the driver's seat 120, the breaker switch 118 is easily reachable. In general, when traveling, the main speed change lever 119 is always supported and the hand can be quickly moved from the main speed change lever 119 to the breaker switch 118, so that the breaker switch 118 can be operated quickly and easily. If cereal grains or straw scraps adhere to the capturing member 116a and the dust suction fan 115a, the electric motor 115b may be loaded and the breaker switch 118 may be turned off. In this case, the dust suction fan 115a can be driven by operating the breaker switch 118 quickly and easily.

[Another embodiment of the first embodiment]
Hereinafter, another embodiment in which the above-described embodiment is modified will be described. The matters described in the above-described embodiments are the same as those described in the following different embodiments. The above-described embodiment and the following different embodiments may be appropriately combined within a range where no contradiction occurs. Note that the scope of the present invention is not limited to the above-described embodiment and each of the following embodiments.

(1) FIG. 14 is a plan view showing a rotation support shaft 24a on which a wrapping prevention cover 130 having another embodiment structure is mounted. 15 is a cross-sectional view taken along the line XV-XV in FIG.

As shown in FIG. 14, the rotation support shaft 24a is supported by a shaft support structure having the same configuration as the shaft support structure supporting the rotation support shaft 24a shown in FIG.

As shown in FIGS. 14 and 15, the wrapping prevention cover 130 having another implementation structure is mounted over a pair of left and right boss cover 25 </ b> A. The boss cover 25A is mounted across the terminal-side rotating wheel body 24 and the rotating shaft 24a so as to be rotatable relative to the terminal-side rotating wheel body 24 and the rotating shaft 24a. A bearing is interposed between the boss portion cover 25A and the rotation support shaft 24a.

The winding prevention cover 130 includes a first divided cover 131 and a second divided cover 132 as shown in FIGS. The 1st division | segmentation cover 131 is comprised by the sheet-metal member whose longitudinal cross-sectional shape is U shape. The 2nd division | segmentation cover 132 is comprised by the sheet-metal member whose longitudinal cross-sectional shape is a groove shape.

The opening side end 131a of the first divided cover 131 and the opening side end 132a of the second divided cover 132 are connected by a plurality of connecting screws 133. The opening-side end portion 132a of the second divided cover 132 is connected to the mounting surface 134c of the support member 134 by a plurality of connecting screws 135 alone. As shown in FIG. 16, a cutout 139 is formed in a portion of the first divided cover 131 corresponding to the two connecting screws 135 closer to the center in the axial direction in the first divided cover 131. The two connecting screws 135 do not exert a fastening action on the first divided cover 131. The first divided cover 131 is located on the outer peripheral side with respect to the second divided cover 132. The second divided cover 132 is fastened to the mounting surface 134c of the support member 134 by a connecting screw 135 at locations where the notches 139 are located on both sides of the circumferential end. By releasing the attachment of the first divided cover 131 with the connecting screw 133, it is possible to remove only the first divided cover 131 backward while keeping the second divided cover 132 attached to the support member 134.

The support member 134 includes a support part 134a that supports the first divided cover 131 and the second divided cover 132, and attachment parts 134b provided at both ends of the support part 134a. The support member 134 is supported by the left and right boss part covers 25 </ b> A by the attachment part 134 b being fixed to the boss part cover 25 </ b> A by the connecting screw 136. A flat plate-shaped locking member 137 extends forward from the upper part of the second divided cover 132. The pair of left and right engaging portions 138 provided at the front end portion of the locking member 137 and the reinforcing member 70 are engaged. Due to the engagement between the anti-rotation member 137 and the reinforcing member 70, the anti-winding cover 130 is prevented from rotating. As shown in FIG. 15, the attachment posture of the wrapping prevention cover 130 is a slightly upwardly attached posture. In the vicinity of the sprocket 24b, the space between the lower portion of the anti-winding cover 130 on the second divided cover 132 side and the endless rotating transport body 21 is widened, so that cereals and straw scraps endlessly rotate with the anti-winding cover 130. It is difficult to clog with the carrier 21.

(2) FIG. 17 is a plan view showing a dust exhaust device 115 having another implementation structure. FIG. 18 is a front view showing a state in which the dust removal case 116 of the dust removal device 115 having another implementation structure is opened.

In the dust removal device 115 having another implementation structure, the lateral end portion on the operation unit side of the dust removal case 116 is supported by the feeder case 20 via the hinge 122. As shown in FIG. 17, when the dust removal case 116 is lifted and swung about the longitudinal axis P of the hinge 122 as a swing center, the dust removal case 116 is in an open posture and the upper part of the dust suction port 20d can be opened. Thus, it is easy to clean the dust adhering to the capturing member 116a and the like. Further, the dust suction fan 115a, the electric motor 115b, and the like can be easily cleaned and inspected from below the dust removal case 116. When the dust removal case 116 is opened, the support rod 123 is moved up and down from the storage location on the front and outside of the dust suction port 20d, and the free end portion of the support rod 123 is engaged with the engagement portion 124 of the dust removal case 116. Thus, the dust removal case 116 can be held in the open posture by the support rod 123. The support rod 123 is provided with a handle member 123a for operation. When the dust discharging case 116 is in a closed position, the catch clip 125 provided between the dust discharging case 116 and the feeder side on the front and rear sides of the dust discharging case 116 is put into an active state to catch the dust discharging case 116. The clip 125 can be locked in the closed position.

(3) FIG. 13 is a cross-sectional view showing a sprocket 24b having another embodiment structure. In the sprocket 24b, the ring body main body 24H is provided in the cylindrical portion 108.

(4) In the above-described embodiment, the rotation support shaft 24a on the conveyance end side is supported by the end side bearing 105 and the center side bearing 106. However, the rotation support shaft on the conveyance start end side or the conveyance is shown. You may comprise so that the rotation support shaft of both the termination | terminus side and the conveyance start end side may be supported by the edge part side bearing 105 and the center side bearing 106. FIG.

(5) In the above-described embodiment, an example is shown in which the left and right two portions of the rotation support shaft 24a are supported by the central bearing 106 between the left and right end side bearings 105, but only one location of the rotation support shaft 24a. May be configured to be supported by the central bearing 106.

(6) In the above-described embodiment, the end portion 25b of the boss portion 25 is configured to enter the inside of the support portion 107 on the rotation support shaft 24a side, and the center-side bearing 106 is formed on the outer peripheral portion of the end portion 25b and the support portion 107. However, the end portion of the boss portion 25 is configured to be positioned outside the support portion 107 on the rotation support shaft 24a side, and the center side bearing 106 is configured as the boss portion. You may implement by interposing between the inner peripheral part of the edge part of 25, and the outer peripheral part of a support part.

(7) In the above-described embodiment, an example in which the cover 80 is provided has been described. However, the cover 80 may be omitted.

(8) In the above-described embodiment, an example in which the cover 80 is configured by the four divided cover bodies 81, 82, 83, and 84 has been described, but the number of divided cover bodies other than four, such as three, five, etc. It may be configured.

(9) In the above-described embodiment, an example in which the endless rotating conveyance body 21 is configured by a chain has been described.

(10) In the above-described embodiment, an example in which the crawler traveling device 2 is provided has been described. However, the crawler traveling device 2 may be replaced with a wheel.

[Second Embodiment]
Hereinafter, an ordinary combine according to a second embodiment of the present invention will be described with reference to FIGS.

〔overall structure〕
As shown in FIG. 19 and FIG. 20, this combine has a traveling machine body 202 having a pair of left and right crawler traveling devices 201, an axial flow type threshing device 203 and a grain storage grain tank 204 arranged in parallel on the left and right. And a driving unit 205 is provided in front of the grain tank 204. A feeder 206 for conveying the harvested cereal rice cake is connected to the front part of the threshing device 203 so as to be swingable up and down around the horizontal axis P1, and a harvesting part 207 having a cutting width substantially equivalent to the lateral width of the machine body is connected to the front end of the feeder 206. It is connected. At the rear of the traveling machine body 202, a grain discharging device 208 that discharges the grains stored in the grain tank 204 to the outside is provided.

In this embodiment, when defining the front-rear direction of the aircraft, it is defined along the aircraft advancing direction in the working state, and when defining the left-right direction of the aircraft, the left-right direction is defined as viewed in the aircraft advancing direction. . That is, the direction indicated by reference numeral (F) in FIGS. 19 and 20 is the front side of the body, and the direction indicated by reference numeral (B) in FIGS. 19 and 20 is the rear side of the body. The direction indicated by reference sign (L) in FIG. 20 is the left side of the aircraft, and the direction indicated by reference sign (R) in FIG. 20 is the right side of the aircraft. FIG. 19 is a side view of the entire ordinary combine as viewed from the outside of the left side of the traveling machine body 202.

The engine 210 is mounted below the driver seat 209 in the driver unit 205, and a transmission case 211 and a main transmission (not shown) are provided below the front of the fuselage. The traveling transmission system is configured so that the power of the engine 210 is shifted by the main transmission and then transmitted to the left and right crawler traveling devices 201 via a transmission mechanism (not shown) in the mission case 211. The power of the engine 210 is transmitted to the feeder 206, the mowing unit 207, the threshing device 203, and the like via a transmission mechanism (not shown).

As shown in FIGS. 19 and 20, the cutting unit 207 forms a back plate 213 that forms a back surface and a bottom surface on a cutting unit frame 212 configured by connecting a square pipe, an angle member having an L-shaped cross section, or the like. A frame structure is formed by connecting the transport deck 214 and a pair of left and right side plates 215 forming left and right side surfaces. A clipper type mowing device 216 is provided across the left and right side plates 215 along the front end of the transfer deck 214. A lateral feed auger 217 is provided at an upper position on the rear side of the transport deck 214 to transport the harvested cereals toward the intermediate side in the lateral direction of the machine body. The lateral feed auger 217 is spanned across the left and right side plates 215 and is rotatably supported. On the front upper side of the cutting unit 207, a rotating reel 218 that scrapes the planted crop backward is provided.

The lateral feed auger 217 is provided with a pair of left and right screw blades 220 that laterally feed along the lateral width direction toward the front end portion of the feeder 206 as it rotates, on the outer periphery of the large diameter auger drum 219. It is done. In addition, rod-like scrambling bodies 221 that are retracted from the auger drum 219 as the lateral feed auger 217 rotates are provided at a plurality of locations in the circumferential direction at locations facing the front end entrance of the feeder 206 in the lateral feed auger 217. Yes.

[Crawler traveling device]
The crawler traveling device 201 includes a track frame 223 fixed to the body frame 222, drive wheels 224 located on the front side of the body, a plurality of grounding wheels 225 arranged in the longitudinal direction of the body, and tension located on the rear side of the body. A wheel 226, an upper guide roller 227 positioned above the ground roller 225, and an endless crawler belt 228 are provided. The drive wheel 224, the plurality of grounded rollers 225, and the upper guide roller 227 are supported by the track frame 223 in a fixed position. The tension ring 226 is supported so that its position can be changed in the front-rear direction with respect to the track frame 223.

The support structure of the tension ring 226 will be described.
As shown in FIG. 26, the track frame 223 is formed in a rectangular tube shape, and the rear end portion is open. A square pipe-shaped tension frame 229 is slidably fitted in the rear end portion of the opened track frame 223. A support shaft 230 that protrudes laterally is fixed to the tension frame 229. A tension ring 226 is rotatably fitted and supported on the support shaft 230 via a bearing 231.

A position adjustment mechanism 232 that can change and adjust the front and rear positions of the tension frame 229 relative to the track frame 223 is provided. The position adjustment mechanism 232 includes a screw support portion 233 provided in the track frame 223, a female screw portion 234 provided in the tension frame 229, and an adjustment screw shaft 235 extending over them.

The screw support portion 233 receives the front end portion of the adjustment screw shaft 235 to prevent the movement to the front side, and supports the screw shaft 235 so as not to rotate. The female screw portion 234 is held in a state in which the rotation is prevented by a holder 236 connected and fixed to the tension frame 229. Although not described in detail, the screw support portion 233 can release the anti-rotation state with respect to the adjustment screw shaft 235 by removing the anti-rotation member, and the adjustment screw can be manually operated by releasing the anti-rotation state. By rotating the shaft 235, the position of the tension frame 229 can be changed in the front-rear direction via the female screw portion 234 that is screwed into the adjustment screw shaft 235.

Although not described in detail, the holder 236 that holds the female screw portion 234 is a plate body that is rectangular and has a vertical orientation when viewed from the front-rear direction of the machine body, and is integrally connected to the tension frame 229 by welding. . The holder 236 has a large support strength so that when the female screw portion 234 is screwed, the female screw portion 234 and the tension frame 229 can be integrally moved in the front-rear direction.

The tension ring 226 has a boss portion 237 positioned on the radially inner side and is externally attached to the support shaft 230 via a bearing 231. An oil seal 238 is provided between the boss portion 237 on the track frame 223 side of the bearing 231 and the support shaft 230. A collar member 239 is provided at the end of the boss portion 237 on the track frame 223 side.

The radially inner side portion of the collar member 239 is received by a shaft side step portion 240 formed on the support shaft 230, and movement to the tension frame 229 side is restricted. A portion of the collar member 239 on the radially outer side opposite to the tension frame 229 side restricts the movement of the boss portion 237 to the tension frame 229 side while allowing relative rotation.

An outward projecting portion 241 that projects outward in the radial direction is formed at a position on the tension frame 229 side on the radially outward side of the collar member 239. The dimension of the outward projecting portion 241 is controlled so that the end edge 241 a on the tension frame 229 side contacts the outer end surface 236 a of the holder 236. The outward projecting portion 241 has a shape having a small concave portion 241b so as to prevent mud from accumulating while increasing the diameter so that the contact area between the collar member 239 and the holder 236 is as large as possible.

By providing the collar member 239 as described above, even when the crawler belt 228 is tensioned and a force is applied to the support shaft 230 protruding in a cantilever manner, the collar member 239 contacts the holder 236. Thus, bending of the support shaft 230 is avoided to prevent damage.

〔feeder〕
The feeder 206 will be described.
As shown in FIGS. 19 and 21, the feeder 206 is provided in a state extending from the rear end portion of the cutting unit 207 located on the lower side of the front part of the machine body to the cereal input part of the threshing device 203 located on the upper side of the rear part of the machine body. And a square tube type feeder case 242 for conveying cereals and a chain rotating type conveying mechanism 243 located inside the feeder case 242.

The chain rotation type transport mechanism 243 will be described.
As shown in FIGS. 19 and 21, a drive shaft 244 as a laterally lower rotational shaft is installed on the rear side of the feeder case 242, and a laterally lateral upper rotational shaft is provided on the front side of the feeder case 242. A driven shaft 245 is installed. The drive shaft 244 is provided with a drive sprocket 246 as a pair of lower-side extending wheels at intervals in the axial direction. On the radially outer side of the driven shaft 245, a large-diameter drum-shaped driven wheel body 247 is provided so as to rotate integrally with the driven shaft 245.

An endless rotating chain 248 as a pair of endless rotating bodies is wound around each of the pair of driving sprockets 246 and the driven wheel body 247. A plurality of conveying members 249 are installed horizontally on the pair of endless rotating chains 248 with a predetermined pitch.

As shown in FIG. 22, a cylindrical support portion 250 that rotatably supports the drive shaft 244 is pivotable around the horizontal axis P <b> 1 via a pair of left and right fulcrum brackets 251 on the front wall portion of the threshing device 203. It is supported. Then, the left and right side walls 242A of the feeder case 242 are integrally connected to the cylindrical support portion 250, and the entire feeder case 242 including the cutting portion 207 is swingable up and down around the horizontal axis P1 in front of the threshing device 203. Supported by the wall.

The drive shaft 244 has a hexagonal cross-sectional shape, and a pair of left and right drive sprockets 246 each having a hexagonal fitting hole that fits into the drive shaft 244 are integrated with an interval along the axial direction. The outer fitting is mounted so that it can rotate freely. A boss portion 246a of the drive sprocket 246 is externally fitted to the drive shaft 244 in a square fitting state. The boss portion 246a is fastened and fixed to the drive shaft 244 by a connecting bolt 252 that is screwed in along the radial direction.

As shown in FIG. 23, a cylindrical cover portion 290 that covers the end portion of the cylindrical support portion 250 is provided on the side surface on the outer side in the axial direction of the drive sprocket 246 so as to be integrally extended. Yes. In addition, an annular hook-shaped portion 291 that rises toward the inner peripheral portion of the cover portion 290 is integrally fixed to a portion covered by the cover portion 290 in the outer peripheral portion of the cylindrical support portion 250. ing. By comprising in this way, it prevents the waste waste etc. from entering into the clearance gap between the cylindrical support part 250 and the drive sprocket 246.

The drive shaft 244 protrudes laterally outward on both the left and right sides of the feeder case 242, and an input pulley 253 to which power from the engine 210 is transmitted is provided on the left protrusion, and the right protrusion includes An output sprocket 254 and a transmission pulley 255 for transmitting power to each part of the part 207 are provided.

When the drive shaft 244 is rotationally driven by the power from the engine 210, the pair of endless rotating chains 248 are rotated accordingly, and the harvested cereal grains harvested by the harvesting unit 207 are directed toward the rear of the machine body. Transport. At this time, the rotation direction of the endless rotation chain 248 is set so as to convey the harvested cereal meal along the linear movement path K located below the endless rotation chain 248. When the conveying member 249 provided in the endless rotating chain 248 moves along the linear movement path K, the conveying member 249 pushes and moves the harvested cereal meal while being placed and supported on the bottom surface 242B of the feeder case 242, and the rear of the machine body. Transport toward After being conveyed by the endless rotating chain 248 to the conveyance end portion, the harvested cereal meal is discharged from the conveyance end portion toward the threshing device 203 located on the rear side of the machine body.

Therefore, power is transmitted to the drive shaft 244 and the pair of endless rotating chains 248 rotate integrally in the same direction, whereby the crop supplied from the cutting unit 207 is conveyed by the conveying member 249 in the feeder case 242. A chain rotation type transport mechanism 243 that is transported and supplied to the threshing apparatus 203 is configured.

As shown in FIGS. 21 and 22, a lateral frame body 256 is installed inside the feeder case 242 at a location closer to the drive shaft 244 and closer to the drive shaft 244 than the drive shaft 244. The frame body 256 is formed in a cylindrical shape, and is integrally connected to the left and right side walls 242A of the feeder case 242 respectively.

Next, the configuration around the drive shaft 244 in the feeder 206 will be described.
As shown in FIGS. 22, 23, and 24, the drive shaft 244 is externally fitted to the drive shaft 244 via a bearing 257 at a position adjacent to the lateral intermediate side of each of the pair of drive sprockets 246. A boss member 258 is provided.

The boss member 258 includes a cover portion 259 that covers the outer side of the connecting bolt 252, a shaft extrapolation portion 260 that is extrapolated to the drive shaft 244 via the bearing 257, and an inner cover portion 261 that covers the inner side in the left-right direction. And are integrally formed of a metal material. A small-diameter cylindrical portion 262 having a narrow width in the axial direction is formed at a location near the drive shaft 244 in the inner cover portion 261. The outer peripheral portion of the boss member 258 is formed on a smooth surface so that there is less possibility of trapping of scraps and the like.

A connecting member 263 for connecting the pair of boss members 258 to each other is provided. The connecting member 263 is bolt-connected to each boss member 258 along the axial direction from the intermediate portion side of the pair of boss members 258 toward each boss member 258 side.

A connecting surface 258a is formed at the inner end of each pair of boss members 258 in the left-right direction, that is, from the inner side of the left-right direction, that is, from the intermediate side of the boss member 258, and can be connected to the bolt along the axial direction. ing. The connecting member 263 is integrally formed in a substantially U shape in a plan view, and connects the pair of connecting portions 265 in a vertical orientation applied to the connecting surfaces 258a of the pair of boss members 258 and the pair of connecting portions 265. And a laterally extending portion 266 in a lateral orientation.

The connection portions 265 on both the left and right sides of the connection member 263 are applied to the connection surfaces 258a of the pair of boss members 258, and the shafts are formed by two bolts 267 from the middle portion side of the pair of boss members 258 toward the boss members 258 side. It becomes the structure connected along a core direction.

22 to 25, the connecting member 263 is provided in a state in which a support portion 271 for fixing a wrapping prevention cover 268 described later is integrally fixed. The support portion 271 is formed in a substantially U shape when viewed in the axial direction of the drive shaft 244, and includes a pair of attachment surfaces 271a to which the anti-winding cover 268 is attached by bolt fastening. As shown in FIG. 24, the attachment surfaces 271 a are provided at both ends of the connection member 263 in the circumferential direction of the wrapping prevention cover 268.

A cylindrical anti-winding cover 268 that is externally inserted into the drive shaft 244 is provided at a lateral intermediate portion of each of the pair of drive sprockets 246 on the drive shaft 244. The anti-winding cover 268 includes a plurality of divided cover bodies that are divided in the circumferential direction. Specifically, it is divided into two parts, a first divided cover body 269 and a second divided cover body 270.

As shown in FIGS. 24 and 25, the first divided cover body 269 includes a semicircular arc-shaped portion 269a extrapolated to the outer peripheral portion of the small-diameter cylindrical portion 262 of the boss member 258, and a tangential direction from the arc-shaped portion 269a. It is formed in a substantially U-shaped cross section including a pair of extending portions 269b extending linearly. The second divided cover body 270 is formed in a substantially U shape when viewed in the axial direction. The first divided cover body 269 and the second divided cover body 270 are positioned so that both end portions in the circumferential direction overlap each other and cover the outer peripheral portion of the drive shaft 244 to form a wrapping prevention cover 268. The anti-winding cover 268 covers not only the drive shaft 244 but also the outer periphery of the connecting member 263.

A mounting structure of the wrapping prevention cover 268 will be described.
The anti-winding cover 268 is connected to the support portion 271 by fastening with bolts and nuts. As shown in FIGS. 23, 24, and 25, a pair of extending portions 269 b of the first divided cover body 269 is formed by two bolts 272 and nuts 280 at both ends in the axial direction of the anti-winding cover 268. The circumferential end portions 270a on both sides of the second divided cover body 270 are connected to each other. The nut 280 is welded and fixed in advance to the inner surface side of the circumferential end portion 270a of the second divided cover body 270 (see FIG. 25).

Note that the winding prevention cover 268 and the support portion 271 are bolted at a total of five locations. A pair of extending portions 269b of the first divided cover body 269 and circumferential end portions on both sides of the second divided cover body 270 by two bolts 272 located at both end portions along the axial direction of the drive shaft 244 270a are connected to each other. The two bolts 273 positioned closer to the center in the axial direction than the both end portions along the axial direction of the drive shaft 244 cause the support portion 271 and the circumferential end portions 270a on both sides of the second divided cover body 270 to be located. It is connected. By one bolt 274 located in the center in the axial direction of the drive shaft 244, the support portion 271, the pair of extending portions 269 b of the first divided cover body 269, and circumferential end portions on both sides of the second divided cover body 270 270a are connected together.

Circumferential ends on both sides of the support portion 271 and the second divided cover body 270 by two bolts 273 and nuts 281 positioned closer to the center in the axial direction than both side ends along the axial direction of the drive shaft 244 The part 270a is connected. The nut 281 is fixed by welding to the inner surface side of the support portion 271 in advance (see FIG. 24).

A pair of extending portions 269b of the first divided cover body 269 and circumferential end portions 270a on both sides of the second divided cover body 270 are provided by a single bolt 274 and nut 281 located in the center in the axial direction of the drive shaft 244. Are connected to the mounting surfaces 271a located on both sides of the support portion 271 together. The nut 281 is fixed by welding to the inner surface side of the support portion 271 in advance (see FIG. 24).

A pair of extending portions 269b of the first divided cover body 269 and circumferential end portions 270a on both sides of the second divided cover body 270 are attached to the mounting surface 271a by fastening a plurality (five) of bolts 272, 273, 274. It is fixed. At the connection location between each of the pair of extending portions 269b of the first divided cover body 269 and the circumferential end portions 270a on both sides of the second divided cover body 270, two divided cover bodies (first divided cover body 269). A plurality of (five) bolts 272, 273, 274 to the attachment surface 271a in the second divided cover body 270) are provided in a state of being aligned along the axial direction of the drive shaft 244. . The second divided cover body 270 covers the connecting member 263 and the connecting portion between the connecting member 263 and the boss member 258.

As shown in FIG. 25, a notch 282 is formed at a position corresponding to the two bolts 273 closer to the center in the axial direction in the first divided cover body 269, and these two bolts 273 A fastening action is not exerted on the one-part cover body 269. The first divided cover body 269 is located on the outer peripheral side with respect to the second divided cover body 270. And the 2nd division | segmentation cover body 270 is fastened to the attachment surface 271a in the location where the 1st division | segmentation cover body 269 located in the outer peripheral side does not overlap with the adjacent 2nd division | segmentation cover body 270 in the both sides of the circumferential direction edge part. Has been.

The anti-winding cover 268 is prevented from rotating by a connecting member 275 made of a vertically oriented plate-like body provided across the anti-winding cover 268 and the frame body 256. Since both sides of the frame body 256 are fixed to the feeder case 242, the anti-winding cover 268 is supported by the feeder case 242 while being prevented from rotating.

The connecting member 275 is provided across the second divided cover body 270 and the frame body 256 that cover the connecting member 263. As shown in FIG. 24, the connection member 275 is divided into a first connection body 276 and a second connection body 277 each formed of a plate-like body. The first connecting body 276 is integrally fixed to the second divided cover body 270 by welding at the center position in the axial direction. The second connection body 277 is connected to the first connection body 276 by two bolts 278, and an arcuate shape along the arcuate outer peripheral surface of the frame body 256 is provided at a position facing the frame body 256. A recessed portion 279 is formed.

Since the first connection body 276 is fixed to the second divided cover body 270, in the state where the first connection body 276 and the second connection body 277 are not coupled, the circumferential direction around the axis of the drive shaft 244 The position at can be changed arbitrarily. Then, the first connection body 276 and the second connection body 277 are coupled with the bolt 278 in a state where the recessed portion 279 of the second connection body 277 is applied so as to be along the arcuate outer peripheral surface of the frame body 256. Thus, the position of the first connection body 276 in the circumferential direction is determined.

Although the bolt connection location between the 1st connection body 276 and the 2nd connection body 277 is not illustrated, either bolt insertion hole is formed in the long hole. The relative position of the second connection body 277 with respect to the first connection body 276 can be changed and adjusted, and the bolt 278 can be fastened and fixed in a state where the arc-shaped recessed portion 279 contacts the outer surface of the frame body 256. .

As a result, the connection member 275 is provided over the second divided cover body 270 and the frame body 256 that cover the coupling member 263 in a state where there is no backlash, and the anti-winding cover 268 can be prevented from rotating.

As shown in FIGS. 21 and 24, the upper surface 270 b (upper circumferential end 270 a) of the second divided cover body 270 covering the connecting member 263 is along or substantially along the linear movement path of the endless rotating chain 248. It is formed in a posture. The circumferential end portions 270a on both sides of the second divided cover body 270 are in a parallel posture, and the space between the lower linear movement path K of the endless rotating chain 248 and the circumferential end portion 270a of the second divided cover body 270 is between. It will be in an open state. Therefore, it can be avoided that the harvested cereal culm causes the transport clogging between them and accumulates. Note that the heads of the connecting bolts 272, 273, and 274 are formed in a smooth arc shape so as to reduce the possibility that the harvested culm will be caught.

As shown in FIG. 22, the connecting member 275 is configured with a plate-like body in a vertically oriented posture, and thus is narrow in plan view. Therefore, an open space Q that is opened up and down is formed between the pair of drive sprockets 246 between the winding prevention cover 268 and the frame body 256.

Since the open space Q is formed between the wrapping prevention cover 268 and the frame body 256 in this way, the long chopped cereal culm is sandwiched between the endless rotating chain 248 and the drive sprocket 246 and rotated together. However, even if it moves to the upper movement path and the pinching is released and the chopped cereals fall down, the chopped cereals are positioned below the endless rotating chain 248 through the open space Q. Since it falls to the linear movement path | route K which carries out, it will be conveyed back with other cutting grain pestle, and there will be little possibility of causing conveyance clogging.

[Another embodiment of the second embodiment]
Hereinafter, another embodiment in which the above-described embodiment is modified will be described. The matters described in the above-described embodiments are the same as those described in the following different embodiments. The above-described embodiment and the following different embodiments may be appropriately combined within a range where no contradiction occurs. Note that the scope of the present invention is not limited to the above-described embodiment and each of the following embodiments.

(1) In the above embodiment, the drive shaft 244 is provided as a lower rotation shaft on the lower side in the conveyance direction of the feeder case 242, and the driven shaft 245 is used as the upper rotation shaft on the upper side in the conveyance direction of the feeder case 242. However, instead of this configuration, a driven shaft may be provided as the lower-side rotation shaft, and a drive shaft may be provided as the upper-side rotation shaft.

(2) In the above embodiment, the connection member 275 includes the first connection body 276 welded and fixed to the second divided cover body 270 and the second connection body 277 connected to the frame body 256. Instead of this configuration, the connection member 275 may be configured as a single continuous body.

(3) In the above embodiment, the connection member 275 is provided at the center position in the axial direction with respect to the wrapping prevention cover 268. However, the connection member 275 is not limited to the center position in the axial direction. You may provide in the position close | similar to the both-ends part of an axial direction.

(4) In the above-described embodiment, the upper surface 270b of the second divided cover body 270 is formed in an alignment direction of the drive shaft 244 and the frame body 256, that is, in a posture along the linear movement path of the endless rotating chain 248. Although shown, instead of this configuration, it may be configured as follows.
As shown in FIGS. 27 and 28, the second divided cover body 270 that covers the connecting member 263 is assembled in a posture that is inclined downward with respect to the direction in which the drive shaft 244 and the frame body 256 are aligned. The upper surface 270b of the cover body 270 may be formed on an inclined surface that is positioned lower as it is positioned closer to the frame body 256 with respect to the direction in which the drive shaft 244 and the frame body 256 are arranged.
As shown in FIGS. 27 and 28, if the second divided cover body 270 is assembled in an inclined posture, the second divided cover body 270 is not inclined and the drive shaft 244 and the frame body 256 are arranged in the alignment direction. Compared with the structure provided in the attitude | position along, the space | interval between the 2nd division | segmentation cover body 270 and the frame body 256 along the alignment direction of the drive shaft 244 and the frame body 256 can be enlarged.
In the configuration shown in FIGS. 27 and 28, the first divided cover body 269 as a divided cover body in the anti-winding cover 268 includes a semicircular arc-shaped portion 269 a that is extrapolated to the outer peripheral portion of the small-diameter cylindrical portion 262, and its circle. It is formed in a substantially U-shaped cross section including a pair of extending portions 269b extending linearly in a tangential direction from the arc-shaped portion 269a. The second divided cover body 270 as the divided cover body in the anti-winding cover 268 is formed in a substantially U shape in the axial direction so as to cover the connecting member 263 on the inner side. One of the two divided cover bodies is configured to cover the connecting member 263.
The first divided cover body 269 and the second divided cover body 270 overlap each other and are bolt-connected in a state of being positioned so as to cover the outer peripheral portion of the drive shaft 244, thereby forming a wrapping prevention cover 268. The wrapping prevention cover 268 is fixed to a support portion 271 that is integrally fixed to the connecting member 263 in a fastened state.
27 and 28, the heads of the connecting bolts 272, 273, and 274 protruding upward on the upper surface 270b of the second divided cover body 270 are less likely to catch the harvested cereal. Thus, it is formed in a smooth arc shape.
In addition, instead of the configuration shown in FIGS. 27 and 28, the upper surface 270 b of the second divided cover body 270 may be formed as a flat surface along the alignment direction of the drive shaft 244 and the frame body 256. Instead of a flat surface, it may be formed in an arc shape.

(5) In the above-described embodiment, the connection member 275 is a plate-like body in a vertical posture provided across the anti-winding cover 268 and the frame body 256, but instead of this configuration, FIG. As shown in FIG. 5, the connection member 275 may be formed of a plate-like body in a lateral orientation provided across the anti-winding cover 268 and the frame body 256. In this configuration, the wrapping prevention cover 268 includes the cover-side placement support portion 283 that places and supports the connection member 275, and the frame body 256 places and supports the connection member 275. A configuration including 284 is preferable. In the example shown in FIG. 29, the cover-side mounting support portion 283 is configured using the upper surface 270b (upper circumferential end portion 270a) of the second divided cover body 270, but a separate support member is used. You may prepare.

(6) In the above embodiment, the cylindrical cover portion 290 that covers the end of the cylindrical support portion 250 is provided on the side surface on the outer side in the axial direction of the drive sprocket 246, and the cylindrical support portion 250 covers the cover portion. Although the annular hook-shaped portion 291 rising toward the inner peripheral portion of 290 is provided, the following configuration may be used instead of this configuration.
As shown in FIGS. 30 and 31, a circumferential groove that is recessed in the radial direction is formed on the side surface on the outer side in the axial direction of the drive sprocket 246, and the flange portion 291 is formed in the cylindrical support portion 250. The cylindrical shaft end portion is directly inserted into the circumferential groove so that no waste scraps are sandwiched between the side surface of the drive sprocket 246 and the shaft end portion of the cylindrical support portion 250. It may be a thing.

(7) In the above embodiment, the winding prevention cover 268 is configured by a plurality of divided cover bodies (first divided cover body 269 and second divided cover body 270) divided in the circumferential direction. However, instead of this configuration, the wrapping prevention cover 268 may be a series that continuously extends over the entire circumference.

The present invention can be applied to a harvester that harvests various crops such as buckwheat and corn, in addition to a combine that harvests rice and wheat. In addition, the present invention can be applied to a normal combine equipped with a feeder that conveys the harvested cereal grains harvested by the harvesting part at the front of the aircraft toward the rear of the aircraft.

(First embodiment)
6 Feeder 7 Harvesting part 20 Feeder case 20b Side plate part 21 Endless rotating conveyance body 24a Rotating support shaft 24b Rotating ring body 24H Ring body main body 24K Polygon cross section 25 Boss part 25a Distant part 25b Close part 70 Reinforcement member 80 Cover 81 Division Cover body 84 Divided cover body 88 Connection portion 89 Fastener 90 Connection body 105 End side bearing 106 Center side bearing 107 Support portion 113 Hook-shaped portion (dust seal)

(Second Embodiment)
206 Feeder 207 Cutting part 242 Feeder case 244 Drive shaft (lower-side rotating shaft)
245 Driven shaft (upper rotation shaft)
246 Drive sprocket (Lower side extension ring)
247 driven wheel (upper side extending wheel)
248 Endless rotating chain (endless rotating body)
249 Conveying member 250 Cylindrical support portion 256 Frame body 258 Boss member 263 Connection member 268 Anti-winding cover 269, 270 Split cover body 270b Upper surface 271a Mounting surface 275 Connection member 276 First connection body 277 Second connection body 283 Cover side Placement support portion 284 Frame side placement support portion 290 Cover portion 291 Hook-shaped portion K Linear movement path

Claims (33)

A harvesting section provided in front of the traveling aircraft;
A feeder that conveys the harvested product harvested by the harvesting unit toward the rear of the traveling machine body,
The feeder is
A cylindrical boss portion supported by each of the left and right side plate portions of the feeder case;
A rotating spindle that is supported by the left and right boss portions so as to be rotatable relative to the left and right boss portions;
Between the left and right side plate portions, a rotating ring body supported on the rotating support shaft in a state of rotating integrally with the rotating support shaft and wound with an endless rotating conveyance body,
In each of the left and right boss portions, an end-side bearing that rotatably supports the rotating support shaft while being supported at a portion of the boss portion that is far from the endless rotation conveyance body,
A harvester comprising: a central bearing that rotatably supports the rotating support shaft while being supported at a portion of the boss portion close to the endless rotating conveyance body between the left and right end side bearings. Machine. Each of the left and right bosses is located over the inside and outside of the feeder case,
The end side bearing supports the rotating support shaft at a portion of the boss portion outside the feeder case,
The harvesting machine according to claim 1, wherein the central bearing supports the rotating support shaft at a portion of the boss portion in a feeder case. Forming a polygonal cross-section in the central portion of the rotating spindle;
The rotating ring body is fitted to the polygonal cross section with different diameters,
The end portion side bearing is interposed between an outer peripheral portion of the rotation support shaft and an inner peripheral portion of the boss portion,
The harvest according to claim 1 or 2, wherein the center-side bearing is interposed between an inner peripheral portion of a support portion provided on the rotary support shaft so as not to be relatively rotatable and an outer peripheral portion of the boss portion. Machine. The harvester according to claim 3, wherein the support portion is connected to the rotating wheel. In the rotating ring body, a cylindrical portion that is fitted around the rotating support shaft is formed on the side of the rotating support shaft on the side of the center portion with respect to the ring body main body around which the endless rotating conveyance body is wound. The harvesting machine according to claim 4, wherein the support portion is formed on a side portion on an end portion side of the rotation support shaft with respect to the ring body main body. 6. The harvest according to claim 5, wherein an end portion of the boss portion on a central portion side of the rotating support shaft is reduced in diameter, and the end portion is inserted into the rotating wheel body to a position overlapping with the wheel body main body. Machine. Of the outer peripheral portion of the boss portion, an annular hook-shaped portion that rises from a portion located on the end side of the rotation support shaft with respect to the central bearing toward the inner peripheral portion of the support portion. The harvester according to any one of claims 3 to 6, which is located on a circumferential side. A pair of left and right rotating wheels are provided,
A cylindrical cover that covers a portion of the rotating spindle that is located between the left and right rotating wheel bodies;
A connecting member for connecting the cover and the reinforcing member horizontally mounted on the left and right side plate portions,
The cover is constituted by a divided cover body connected by a fastener,
The harvesting machine according to any one of claims 1 to 7, wherein the connecting body is fastened and fixed to the connecting portion of the divided cover body by the fastener. A feeder is provided that conveys the harvested cereals harvested by the harvesting part at the front of the aircraft toward the rear of the aircraft,
The feeder is provided with a cylindrical feeder case for transferring cereal grains, a laterally lower rotary shaft installed inside the lower side of the feeder case in the transport direction, and an interval in the axial direction of the lower rotary shaft. A pair of lower-side extension wheels provided on the lower-side rotating shaft, a lateral upper-side rotating shaft erected on the upper side in the conveying direction of the feeder case, and the upper-side rotating shaft. A pair of upper side tensioning wheels provided, a lower side tensioning wheel and the upper side tensioning wheels wound around the upper side tensioning wheel and spaced apart in the axial direction. A cylindrical winding that is extrapolated to the lower-side rotating shaft between the endless rotating body, a plurality of conveying members that are installed horizontally across the pair of endless rotating bodies, and the pair of lower-side extending wheels. With an anti-stick cover,
The ordinary type combine in which the wrapping prevention cover is composed of a plurality of divided cover bodies divided in the circumferential direction. A pair of boss members positioned at a position adjacent to the intermediate side in the lateral direction of the pair of lower-side extending wheels on the lower-side rotation shaft and supported relatively rotatably on the lower-side rotation shaft; A connecting member for connecting the boss members of each other,
The ordinary combine according to claim 9, wherein the anti-winding cover covers the connecting member. The ordinary combine according to claim 10, wherein the wrapping prevention cover is supported by the connecting member. The ordinary combine according to claim 10 or 11, wherein the connecting member is provided with an attachment surface that overlaps with a circumferential end of the divided cover body. The ordinary combine according to claim 12, wherein the mounting surfaces are provided at both ends of the connecting member in the circumferential direction of the wrapping prevention cover. The ordinary combine according to claim 12 or 13, wherein a plurality of fastening portions to the mounting surface in the split cover body are provided in a state of being aligned along the axial direction of the lower rotation shaft. On both sides or one side of the circumferential end of the divided cover body, the divided cover body positioned on the outer peripheral side of the divided cover body is fastened to the mounting surface at a location where it does not overlap with the adjacent divided cover body. The ordinary combine according to claim 14. The connecting member is bolt-connected to the boss members along the axial direction from the intermediate portion side of the pair of boss members toward the boss members.
The ordinary combine according to any one of claims 10 to 15, wherein a connecting portion between the connecting member and the boss member is covered by the divided cover body of any one of the winding prevention covers. The ordinary combine according to any one of claims 10 to 16, wherein an upper surface of the divided cover body covering the connecting member is formed in a posture along or substantially along a linear movement path of the endless rotating body. . The upper surface of the divided cover body that covers the connecting member is formed on an inclined surface that is inclined so as to approach the linear movement path on the lower side of the endless rotating body toward the upper side of the feeder case. The ordinary combine according to any one of the above. A horizontally oriented frame body that is located on the upper side in the conveying direction from the lower-side rotation shaft and is erected inside the feeder case;
A connection member provided across the wrapping prevention cover and the frame body;
The ordinary combine according to any one of claims 9 to 18, wherein the winding prevention cover is supported by the feeder case in a state of being prevented from rotating by the connection member. The ordinary combine according to claim 19, wherein the connecting member is provided across any one of the plurality of divided cover bodies and the frame body. The connection member includes a first connection body coupled to the wrapping prevention cover, and a second connection body coupled to the first connection body and connected to the frame body. Or the normal type combine described in 20. The ordinary combine according to any one of claims 19 to 21, wherein the connecting member is a vertically oriented plate-like body provided across the wrapping prevention cover and the frame body. 23. The ordinary combine according to claim 22, wherein an open space that is open up and down is formed between the pair of lower-side extending rings between the wrapping prevention cover and the frame body. The ordinary combine according to any one of claims 19 to 21, wherein the connecting member is a plate-like body in a lateral orientation provided across the wrapping prevention cover and the frame body. 25. The ordinary combine according to claim 24, wherein the wrapping prevention cover is provided with a cover side placement support portion for placing and supporting the connection member. 26. The ordinary combine according to claim 24 or 25, wherein the frame body is provided with a frame-side placement support portion for placing and supporting the connection member. A cylindrical support portion is provided on the outer side in the axial direction of each of the pair of lower-side extending wheels, and the lower-side rotation shaft is inserted and rotatably supported.
A cylindrical cover portion that covers an end portion of the cylindrical support portion is provided on a side surface on the outer side in the axial direction of the lower-side extending ring body,
27. Any one of the outer peripheral parts of the said cylindrical support part is equipped with the cyclic | annular collar-shaped part which stands | starts up toward the inner peripheral part of the said cover part in the location covered with the said cover part. Ordinary combine harvester as described in the section. A feeder is provided that conveys the harvested cereals harvested by the harvesting part at the front of the aircraft toward the rear of the aircraft,
The feeder includes a cylindrical feeder case for conveying cereals, a laterally lower rotary shaft installed inside the lower side of the feeder case in the transport direction, and an axial center direction of the lower rotary shaft. A pair of lower-side tensioning wheels provided open, a laterally-oriented upper-side rotating shaft installed inside the upper-side of the feeder case in the transport direction, and an upper-side tension provided on the upper-side rotating shaft A pair of endless rotating bodies wound around the lower ring for extending the lower side and the upper ring for extending the upper side and spaced apart in the axial direction; A plurality of conveying members installed horizontally across a pair of endless rotating bodies and a laterally intermediate portion of each of the pair of lower-side extending wheels on the lower-side rotating shaft are located outside the lower-side rotating shaft. A cylindrical wrapping prevention cover to be inserted, and the lower side rotation A horizontal frame body that is positioned on the upper side in the transport direction from the shaft and is installed inside the feeder case, and transports the harvested cereal meal through a linear movement path that is positioned below the endless rotating body. Configured to discharge the harvested cereals from the conveyance end to the rear side of the machine,
The wrapping prevention cover is supported by the feeder case in a state of being prevented from rotating,
An ordinary combine in which an open space is formed between the winding prevention cover and the frame body so as to be opened up and down between the pair of lower-side extending rings. 29. The ordinary combine according to claim 28, wherein the anti-winding cover is prevented from rotating by a connecting member made of a plate-like body in a vertical orientation provided between the anti-winding cover and the frame body. A pair of boss members that are positioned at positions adjacent to the intermediate side in the lateral direction of each of the pair of lower-side extending wheels on the lower-side rotation shaft, and are rotatably supported by the lower-side rotation shaft; A connecting member that connects the pair of boss members,
The connecting member is bolt-connected to the boss members along the axial direction from the intermediate portion side of the pair of boss members toward the boss members.
30. The ordinary combine according to claim 28 or 29, wherein the connection portion between the connection member and the boss member is covered by the wrapping prevention cover. The connecting member is provided between the lower rotation shaft and the frame body;
The winding prevention cover is configured by a plurality of divided cover bodies divided in the circumferential direction, and is configured such that any one of the plurality of divided cover bodies covers the connecting member,
The anti-winding cover is prevented from rotating by a connecting member made of a plate-like body in a vertically oriented posture provided across the anti-winding cover and the frame body,
31. The ordinary combine according to claim 30, wherein the connecting member is provided across the divided cover body and the frame body that cover the connecting member. 32. The ordinary combine according to claim 31, wherein an upper surface of the divided cover body that covers the connecting member is formed on an inclined surface that becomes lower as it is located on the frame body side. The winding prevention cover is constituted by a plurality of divided cover bodies divided in the circumferential direction,
A connecting member made of a plate-like body in a vertical orientation provided across the wrapping prevention cover and the frame body;
A first connecting body connected to any one of the plurality of divided cover bodies; a second connecting body connected to the first connecting body and connected to the frame body; The ordinary combine according to any one of claims 28 to 32.

Images