JP6765676B2 - Weighing mechanism of roll type feeding device - Google Patents

Description

INDUSTRIAL APPLICABILITY According to the present invention, in the metering mechanism of a roll-type feeding device in a seeder, a fertilizer, etc. Regarding the mechanism.

Conventionally, the feeding part of a seeder or a fertilizer applicator is configured by a roll-type feeding device, and a metering mechanism for the feeding amount of the roll-type feeding device slides a roll on a sliding side of the feeding device with respect to a roll on a fixed side. The technique of adjusting by doing so is known.
Further, in the multi-row position adjusting mechanism, a technique as described in Patent Document 1 below is known as a technique for adjusting the portion of the fertilizer application / sowing roll of all or multiple rows at a time by an adjusting handle. ..

Japanese Unexamined Patent Publication No. 2016-158548

In the present invention, in the operation by the multi-row adjustment handle that adjusts the metering of all the rows or multiple rows at once, the amount of fertilization / sowing may vary for each row. In addition, a micro adjustment device is provided for each roll-type feeding device of each article.

Further, in the multi-row position adjusting mechanism, in the mechanism for engaging and disengaging the feeding drive shaft 3 and the sliding roll mechanism A, the screw tightening mechanism is used in the technique disclosed in Patent Document 1. , It is difficult to operate when loosening or tightening the screw, and there is a problem that the screw tightening mechanism loosens during work, so this operation is made easy.

Further, in the operation mechanism of the multi-row adjustment handle 1, the rotation angle and the feeding amount of the multi-row adjustment handle 1 are adjusted so that the multi-row adjustment handle 1 of the multi-row position adjustment mechanism can also be adjusted in minute units. The relationship between the two is configured so that it can be finely adjusted.

The problem to be solved by the present invention is as described above, and next, the means for solving this problem will be described.

In claim 1, the sliding roll mechanism A is fixed to the feeding drive shaft 3, and the feeding drive shaft 3 and the multi-row adjusting handle 1 of the multi-row adjusting handle mechanism C for adjusting the feeding amount are continuously provided. The multi-row adjustment handle 1 slides the feeding drive shaft 3 to adjust the roll opening degree of the sliding roll mechanism A for the multi-rows, and the multi-row adjustment handle 1 makes it possible to adjust the multi-rows at the same time. The dynamic roll mechanism A is further provided with a fine adjustment mechanism B that enables fine adjustment of the feeding amount for each sliding roll mechanism A.

Further, in the claim 1, in the structure of the adjustable slide roll mechanism A multi strip simultaneously, when adjusting the spacing between the individual seeds and fertilizer feeding device units U, the feed driving shaft 3 and the sliding An engagement / disengagement mechanism D is provided to enable engagement / disengagement of the dynamic roll mechanism A, and the engagement / disengagement mechanism is composed of a shaft engagement tool 4 and an engagement state maintaining tool 6, and the shaft engagement / disengagement mechanism A is provided. In a state where the tool 4 is in contact with the feeding drive shaft 3, the shaft engaging tool 4 can be fixed to the engaged state by the engaging state maintaining tool 6, and the engaging state maintaining tool 6 is a shaft engaging tool. It has a fulcrum crossing structure that is rotated around the feeding drive shaft 3 in a state of being engaged with the shaft 4 and crosses the pivot pin between the shaft engaging tool 4 and the engaging state maintaining tool 6.

In claim 2 , in the metering mechanism of the roll-type feeding device according to claim 1 , the sliding roll mechanism A and the multi-row adjustment handle mechanism C are mounted on the unit mounting rod 12, and the sliding roll mechanism A is attached. The feeding drive shaft 3 is passed through the hexagonal shaft fitting hole of the fertilizer application / seeding roll constituting the above, and the other end of the feeding drive shaft 3 is fixed to the feeding drive shaft side loose fitting shaft 28 of the multi-row adjustment handle mechanism C. The payout drive shaft side loose fitting shaft 28 fixed to the end of the payout drive shaft 3 is connected to the multi-row adjustment handle shaft 25 in a loosely fitted state, and the multi-row adjustment handle 1 is rotated by the rotation of the multi-row adjustment handle 1. The shaft 25 is rotated, and the feeding drive shaft side loose fitting shaft 28 and the feeding drive shaft 3 are slid for adjusting the multi-row position.

In claim 3 , in the metering mechanism of the roll-type feeding device according to claim 2 , a plurality of multi-row adjustment handle shafts 25 fixed to and rotated by the multi-row adjustment handle 1 of the multi-row adjustment handle mechanism C are provided. The number of screw grooves 25a is engraved, the number of the plurality of screw grooves 25a and the detent mechanism 29 for maintaining the rotated state of the multi-row adjustment handle 1 are provided, and the rotation position of the multi-row adjustment handle 1 is provided. Can be fixed in a plurality of stages, and fine adjustment can be made in stages corresponding to the number of screw grooves 25a and the multiplier of the number of fixed points of the rotation position.

Since it is configured as in claim 1, the amount of fertilizer and sowing may vary for each row in the operation with the multi-row adjustment handle that adjusts all rows and multiple rows at once. In addition to the position adjusting mechanism, a micro-adjusting device is provided for each roll-type feeding device of each article to enable micro-adjusting between the final adjacent seed / fertilizer feeding device units U.

Further, in the multi-row position adjusting mechanism, in the mechanism for engaging and disengaging the feeding drive shaft 3 and the sliding roll mechanism A, the screw tightening mechanism is used in the technique disclosed in Patent Document 1. There was a problem that it was difficult to operate when loosening or tightening the screw, and the screw tightening mechanism was loosened during the work.
On the other hand, as in the present invention, this operation is simplified by configuring the engagement / disengagement mechanism D with the shaft engaging tool 4, the engaging state maintaining tool 6, the fulcrum crossing spring 16, the pressing resin body 17, and the like. It is now possible to do so.

Since the relationship between the multi-row adjustment handle shaft 25, the feeding drive shaft side loose fitting shaft 28, and the feeding drive shaft 3 is configured as in claim 2 , even in the portion of the all-row adjustment handle 1 of the multi-row position adjusting mechanism, It has become possible to make adjustments in minute units. As a result, even in the operation mechanism of the multi-row adjustment handle 1, minute adjustment is possible depending on the relationship between the rotation and the amount of the handle.

Since the configuration is as described in claim 3 , when the multi-row adjustment handle 1 is rotated 360 degrees, it is stopped by the detent mechanism 29 at an intermediate rotation angle, and a large amount of adjustment of the sliding roll mechanism A by the multi-row adjustment handle 1 is performed. It was possible to make fine adjustments in stages.

A side view of a seed / fertilizer feeding device unit provided with a multi-row position adjustment mechanism. The rear view of the multi-row fertilizer sowing device in which 14 seed / fertilizer feeding device units are continuously installed. Top view showing the multi-row position adjustment mechanism. The plan view which shows the sliding roll mechanism of the metering mechanism of a roll type feeding device, and the part of a fine adjustment mechanism. An enlarged plan view showing a sliding roll mechanism constituting a multi-row position adjusting mechanism and a part of a fine adjustment mechanism attached to the roll-type fertilizer sowing unit for one row. The plan view of the sliding roll mechanism which shows the multi-row position adjustment mechanism for one line. The plan view which shows the mechanism of the fine adjustment mechanism of the multi-row position adjustment mechanism for one line. In the metering mechanism of the roll-type feeding device, the shaft engaging tool, the engaging state maintaining tool, and the fine adjustment side roll 1 constituting the part of the engaging / disengaging mechanism for engaging / disengaging the sliding roll mechanism and the feeding drive shaft. Top view showing the structure of the fine-tuning knob. In order to fix the sliding roll mechanism to the feeding drive shaft, the shaft engaging tool, the engaging state maintaining tool, the fixed side roll, the multi-row adjustment sliding side roll, the fine adjustment side roll, and the fine adjustment knob part Side view. Top view of the multi-row adjustment handle mechanism. Side view of the multi-row adjustment handle mechanism. The outer side view (a), the rear view (b), the inner side view (c), and the central sectional view (d) of the engaging disengagement body support portion which engages and disengages the feeding drive shaft and the sliding roll mechanism. The outer side view (a), the rear view (b), and the inner side view (c) of the fixed side roll. The outer side view, the rear view, the inner side view and the sectional view of the multi-row adjustment sliding side roll. A rear view (a) and an inner side view (b) of the fine adjustment side roll. A side view (a) and a side view (b) of a fixed-side roll case that supports the fixed-side roll. The rear view (a) and the side view (b) of the fine adjustment screw shaft that is fitted onto the feeding drive shaft. A side view (a) and a rear view (b) of an engagement state maintaining tool constituting the engagement / disengagement mechanism. A side view (a) and a rear view (b) of the shaft engaging tool constituting the engagement / disengagement mechanism D. A side view (a) and a rear view (b) of a fulcrum crossing spring constituting the engagement / disengagement mechanism. A rear view (a), a side view (b), and a perspective view (c) of the pressing resin body constituting the engagement / disengagement mechanism. The outer side view (a), the rear view (b), and the inner side view (c) of the free rotation support shaft. A side view (a) and a rear view (b) of the multi-row adjustment handle. A side view (a) and a rear view (b) of the adjustment position index body. A side view (a) and a rear view (b) of the multi-row adjustment handle shaft. Side view and rear view of the adjustment position detent ring 23 of the multi-row adjustment handle. A plan view (a) and a side view (b) of a connecting cylinder connecting the feeding drive shaft and the handle shaft. Top view of the adjustment amount mark of the multi-row position adjustment mechanism.

Hereinafter, a fertilizer / seeder provided with a multi-row position adjusting mechanism will be described with reference to FIGS. 1, 2, 3 and 4.
The seed / fertilizer feeding device unit U is configured such that the fertilizer application unit and the sowing unit are integrated in the front and rear so that the seeding operation can be performed at the same time as the fertilizer application operation.
A fertilizer hopper 14 is placed in the upper front part and a seed hopper 13 is placed in the upper rear part, and both are placed on the side surfaces of the fertilizer hopper 14 and the seed hopper 13 so that they can be integrated or divided. A locking metal fitting composed of the provided one-touch locking tool 21 is provided.

Since the amount of fertilizer to be fertilized is generally larger than the amount of seeds sown, the fertilizer hopper 14 is configured to have a larger capacity than the seed hopper 13.
A fertilizer feeding device 7 arranged in the fertilizer roll case 19 is arranged in the lower part of the fertilizer hopper 14, and a seed feeding device 5 arranged in the sowing roll case 20 is arranged below the seed hopper 13. It is arranged.

A waterproof cover 34 is provided below the fertilizer feeding device 7 and the seed feeding device 5 so that the fertilizer and seeds fed from the fertilizer feeding device 7 and the seed feeding device 5 are not wet by rainwater or the like. ing.
Further, the waterproof cover 34 also has a role of preventing fertilizer and seeds from popping out from the gap between the fertilizer feeding device 7 and the seed feeding device 5 with the main frame 10 rotating up and down. ing.

The seed / fertilizer feeding device unit U fixes the fertilizer feeding device 7 and the seed feeding device 5 to the position fixing member 36, and the position fixing member 36 is attached to a unit mounting rod 12 provided on a work vehicle such as a tractor. It is configured to be removable.
When the multi-row seed / fertilizer feeding device unit U is fixed to the unit mounting rod 12 by the position fixing member 36 and the interval between the multi-row seed / fertilizer feeding device unit U is adjusted, The engagement state of the position fixing member 36 is released from the unit mounting rod 12, and the seed / fertilizer feeding device unit U for each unit is slid on the unit mounting rod 12 so that the interval can be adjusted.

When adjusting the distance between the seed / fertilizer feeding device unit U, it is necessary to open the sliding roll mechanism A from the feeding drive shaft 3 of the multi-row position adjusting mechanism of the present invention, and the shaft engaging tool 4 and The engagement / disengagement mechanism D at the time of adjustment / non-adjustment of the multi-row position adjusting mechanism by the engagement state maintaining tool 6 is configured.

In the present invention, the sliding roll mechanism A is shown in FIGS. 6, 7, and 8.
That is, the sliding roll mechanism A is a portion that slides with respect to the fixed side roll 8 fixed to the position fixing member 36 side by the feeding roll frame 42 and the fixed side roll case 22.
That is, the engagement / disengagement mechanism D of the engagement / disengagement body support portion 15, the engagement state maintaining tool 6 and the shaft engagement tool 4 that slides on the feeding drive shaft 3 with respect to the fixed fixed side roll 8. The part is composed of a multi-row adjustment sliding side roll 9, a fine adjustment side roll 11, a fine adjustment knob 11a, a fine adjustment screw shaft 18, and the like.

Among the constituent parts of the sliding roll mechanism A, the fine adjustment side roll 11 and the fine adjustment knob 11a that slide on the fine adjustment side roll 11 for further fine adjustment form the fine adjustment mechanism B. There is.
When the seed / fertilizer feeding device unit U for each unit is slid to the left or right on the unit mounting rod 12, the engagement / disengagement mechanism D is opened.
Further, when the multi-row adjustment handle 1 is operated to adjust the feeding amount of the multi-row or all the rows at the same time by using the multi-row position adjusting mechanism, all the seed / fertilizer feeding device units U are engaged. The disengagement mechanism D is engaged.

A parallel link 35 is arranged below the position fixing member 36, and the parallel link 35 supports the main frame 10 in parallel movement up and down.
Below the main frame 10, a groove-growing disk 33 is arranged at the foremost part, a groove for sowing and fertilizer is formed, and a soil-covering disk 32 is arranged at the rear part of the groove-making disk 33. It is configured to cover the fertilizer and seeds put into the groove made by the groove disc 33 with the soil covering disc 32.

Further, a suppression roller 31 for suppressing the soil in the field of the soil-covered seed feeding device 5 is supported at the rear portion of the soil-covered disc 32. A scraper 37 is provided on the outer periphery of the suppression roller 31.
In FIG. 2, a multi-row position adjusting mechanism in which 14 sets of seed / fertilizer feeding device units U are arranged in parallel is disclosed. When the 14-row seed / fertilizer feeding device unit U is arranged in this way, all 14-row can be adjusted by one set of multi-row adjustment handle mechanism C. In the configuration, the left and right 7-rows are divided into 7 rows, and the 7-row multi-row adjustment handle mechanism C on the right side and the 7-row multi-row adjustment handle mechanism C on the left side are provided.

Next, in FIGS. 3 and 4, the mounting positions of the multi-row adjustment handle mechanism C and the seed / fertilizer feeding device unit U of the multi-row position adjustment mechanism of the present invention will be described.
A unit mounting rod 12 is attached to the rear part of a work vehicle such as a tractor via a work machine elevating device. The seed / fertilizer feeding device unit U and the multi-row adjustment handle mechanism C of the present invention are attached to the unit mounting rod 12.
In FIG. 2, an embodiment in which "7 rows are divided into a right side and a left side and attached as a multi-row position adjusting mechanism is shown, but in the configuration, 3 rows of the 7 rows of the left side of the multi-row position adjusting mechanism are shown. Minutes are illustrated in FIGS. 3 and 4.

FIG. 3 shows a plan view of the seed / fertilizer feeding device unit U in a state where the position fixing member 36 is also set.
FIG. 4 shows a multi-row position adjusting mechanism in a state in which the portion of the position fixing member 36 is removed and the portion of the sliding roll mechanism A is exposed in the seed / fertilizer feeding device unit U.

In the arrow with an arc shown at the left end in FIG. 3, the rotation direction of the fertilizer feeding drive shaft 3 and the rotation direction of the sowing feeding drive shaft 3 of the feeding drive shaft 3 are opposite to each other. Is illustrated.
One of the feeding drive shafts 3 is forcibly rotated by a motor or a grounding rotation driving force from a grounding wheel. The other feeding drive shaft 3 for sowing and fertilizing is configured so that the driven rotation is transmitted by the meshing gear 8a provided on the outer periphery of the fixed side roll 8 for the forced rotational force of one.

As shown in FIGS. 3, 4, 10 and 11, the multi-row adjustment handle mechanism C is configured to be slidable and fixed to the left and right with respect to the unit mounting rod 12.
The multi-row adjustment handle mechanism C is also configured so that the unit mounting rod 12 can be locked and disengaged by the position fixing member 36, and the multi-row adjustment handle frame 37 is extended to the position fixing member 36. There is.

An adjustment female screw 38 is fixedly supported on the multi-row adjustment handle frame 37, and an outer circumference of a multi-row adjustment handle shaft 25 connected to the multi-row adjustment handle 1 is attached to a screw portion having an inner diameter of the adjustment female screw 38. The male screw part screwed into is screwed.
By rotating the multi-row adjustment handle shaft 25 with the multi-row adjustment handle 1, the portion of the multi-row adjustment handle shaft 25 is finely adjusted to the left and right with respect to the adjustment female screw 38 and the multi-row adjustment handle frame 37. It is possible to move with.

A male screw is engraved on the outer circumference of the multi-row adjustment handle shaft 25 that is rotated by the multi-row adjustment handle 1, and an adjustment position detent ring 23 is engaged with the outer circumference of the multi-row adjustment handle shaft 25 to rotate together. The detent protrusion of the fine adjustment detent 39 abuts on the outer circumference of the multi-row adjustment handle shaft 25 to determine the rotation position of the multi-row adjustment handle 1. The adjustment position detent ring 23 in which 20 detent recesses 23a are engraved is locked and rotates together.
The fine adjustment detent 39 and the adjustment position detent ring 23 are locked by the spring-forced force, and the locking position of the multi-row adjustment handle 1 is determined every 18 degrees.

Further, the female screw of the adjustment female screw 38 fixed to the multi-row adjustment handle frame 37 and the screw groove 25a of the male screw of the multi-row adjustment handle shaft 25 are finely engraved, and the multi-row adjustment handle 1 has a screw groove 25a. The number of rotations is configured such that 15 screw grooves 25a having a pitch of 2 mm correspond to the predetermined adjustment width with respect to the predetermined adjustment width.
Therefore, the 20 locking recesses of the adjustment position detent ring 23 and the 15 screw grooves 25a provide a total of 300 stop positions for the multi-row adjustment handle 1, in units of 1/300. It is configured so that the adjustment position can be determined.

The shape of the adjustment position detent ring 23 is shown in FIGS. 26A and 26B.
The adjustment position detent ring 23 is provided with 20 detent recesses 23a on the outer circumference at which a protrusion at the tip of the fine adjustment detent 39 is fitted to fix the position of the multi-row adjustment handle 1. By fitting the fine adjustment detent 39 into the detent recess 23a, the multi-row adjustment handle 1 is positioned.

Further, the fine adjustment screw on the outer circumference of the adjustment female screw 38 and the multi-thread adjustment handle shaft 25 is provided with 15 screw grooves 25a having a pitch of 2 mm while the adjustment width is 0 to 30 mm. It is possible to move only 2 mm with one rotation of the multi-row adjustment handle 1.
Therefore, the number of detent recesses 23a of the adjustment position detent ring 23 is 20 and the number of adjustment screws of the multi-row adjustment handle shaft 25 is 30 mm and only 15 are engraved. The adjustment width is divided into 300 points so that it can be fixed and stopped.
The position of the multi-row position adjustment mechanism can be finely adjusted by 300 scales within 30 mm.

The adjustment amount mark shown in FIG. 28 is formed on the multi-row adjustment handle frame 37 between the adjustment female screw 38 for fertilization and the adjustment female screw 38 for sowing in order to obtain a guideline for the 300 adjustment points. 26 are arranged. In the adjustment amount mark 26, a scale in millimeters is engraved between 30 mm.
Further, the side in which the adjustment amount mark 26 is fixed, which is opposite to the side where the multi-row adjustment handle 1 is fixed in the multi-row adjustment handle shaft 25, is shown in FIGS. 24 (a) and 24 (b). The adjustment position index body 27 is fitted.
By the movement for the adjustment of the multi-row adjustment handle shaft 25, the adjustment position index body 27 moves beside the adjustment amount mark 26, and the multi-row position adjustment position of fertilization and the multi-row position adjustment position of sowing It is configured so that you can check the guideline.

The shape of the multi-row adjustment handle 1 is shown in FIGS. 23 (a) and 23, and bolts are screwed into two bolt holes at the outer ends of the multi-row adjustment handle shaft 25 and fixed. Has been done.
The feeding drive shaft 3 for fertilization and the feeding drive shaft 3 for seeding are interlocked and forcibly driven in the reverse rotation direction by a rotational driving force from a driving motor or a ground driving wheel, and this forced driving rotation Cannot be transmitted to the multi-row adjustment handle 1, so that it is possible to slide and move between the feeding drive shaft 3 and the multi-row adjusting handle shaft 25 for inter-row adjustment to the left and right. It is configured so that the forced rotation for feeding the drive shaft 3 and the rotation for adjusting the inter-rows of the multi-row adjustment handle 1 can be freely performed.
That is, the swayable mechanism between the feeding drive shaft 3 and the multi-row adjustment handle shaft 25 is the feeding drive shaft side free fitting shaft 28 shown in FIGS. 22 (a), (b) and (c). And the multi-row adjustment handle shaft 25.

As shown in FIG. 10, the feeding drive shaft side free fitting shaft 28 is multi-row adjusted by the inner peripheral bearing 40 for the feeding drive shaft side free fitting shaft 28 fitted to the inner diameter portion of the multi-row adjusting handle shaft 25. It is configured to be freely rotatable with respect to the handle shaft 25.
Further, the multi-row adjustment handle shaft 25 is loosely supported by the multi-row adjustment handle frame 37 by an outer peripheral bearing 41 supported by the multi-row adjustment handle frame 37, and the multi-row adjustment handle 1 and the feeding drive are driven. The shaft 3 can rotate freely with each other, but due to the rotation of the multi-row adjustment handle 1 due to the inter-row adjustment, the multi-row adjustment handle shaft 25 and the feeding drive shaft 3 move left and right by the same adjustment width. It is possible.

The feeding drive shaft side loose fitting shaft 28 is supported so as to be loosely fitted through a support hole of an inner peripheral bearing 40 bored inside the multi-row adjusting handle shaft 25, and the multi-row adjusting handle shaft The outer end portion of the feeding drive shaft 3 is fitted and fixed to the outer diameter portion of the portion where 25 is projected inward by the connecting cylinder 24 shown in FIGS. 27 (a) and 27 (b). There is.
Three bolt holes are bored in the connecting cylinder 24, and the outer bolt holes are bolted to the inner end of the feeding drive shaft side free fitting shaft 28 inserted in the inner diameter portion. It is a hole of.
The other two holes on the inner side are bolt holes for connecting and fixing the outer end portion of the feeding drive shaft 3 inserted in the inner diameter portion to the connecting cylinder 24.

Next, the configurations of the sliding roll mechanism A and the fine adjustment mechanism B will be described with reference to FIGS. 6, 7, 8 and 9.
As shown in FIGS. 3 and 4, a fertilizer feeding device 7 and a seed feeding device 5 are assembled inside the position fixing member 36 to be fixed to the unit mounting rod 12, and the feeding roll frame 42 is configured. Has been extended.
The feeding roll frame 42 is a frame-shaped frame having a rectangular shape in a plan view, and the fertilizer feeding device 7 is internally provided by a feeding drive shaft 3 for fertilizer application, and the seed feeding device 5 is provided by a feeding drive shaft 3 for sowing. It is supported so that it can be engaged and fixed by the engaged disengagement mechanism D.

The fertilizer feeding device 7 and the seed feeding device 5 have opposite rotation directions, but are symmetrically configured, so both will be described together.
The multi-row adjustment sliding side roll 9 is loosely fitted to the feeding drive shaft 3 formed by the hexagonal shaft passing through the center.
The multi-row adjustment sliding side roll 9, the fixed side roll 8 described later, the fine adjustment side roll 11, and the fine adjustment knob 11a are all made of resin.

The multi-row adjustment sliding side roll 9 is loosely fitted to the feeding drive shaft 3 by a fine adjustment screw shaft 18 inserted into the inner diameter, and is usually multi-row adjusting with respect to the rotation of the feeding drive shaft 3. The sliding side roll 9 is freely rotatable, and is also configured to be slidable to the left and right in order to adjust the spacing between the seed / fertilizer feeding device unit U and the unit mounting rod 12.
However, when the fertilizer application amount and the seeding amount are adjusted for all the rows or the multiple rows at the same time by the multi-row position adjusting mechanism, the feeding drive shaft 3 and the multi-row adjusting sliding side roll 9 are adjusted by the engagement disengagement mechanism D. The multi-row adjustment sliding side roll 9 is configured to be slidable to the left and right in accordance with the sliding of the feeding drive shaft 3 for adjusting the inter-rows to the left and right.

Even when the multi-row adjustment sliding side roll 9 is moved left and right by the multi-row adjustment handle mechanism C, the fixed side roll 8 supported by the fixed side roll case 22 on the outside of the feeding roll frame 42 is The position relative to the multi-row adjustment sliding side roll 9 is changed without sliding to the left or right.
The inner particle fitting protrusion 8b of the fixed side roll 8 is fitted with the particle fitting recess 9a on the outer periphery of the multi-row adjustment sliding side roll 9, and the left and right width of the fitting groove can be changed to increase the fitting amount. It is possible to adjust from to a small amount.

On the outer periphery of the fixed-side roll 8, a reverse rotation drive gear 8a that enables the fertilizer feeding device 7 and the seed feeding device 5 to be driven in the opposite rotation direction is projected, and the fertilizer feeding device 8a is provided in the front-rear direction. The reverse rotation drive gear 8a for the device 7 and the reverse rotation drive gear 8a for the seed feeding device 5 mesh with each other to drive the fixed side rolls 8 of each other.

The fixed-side roll 8 is rotatably supported inside the fixed-side roll case 22, but is supported so as not to move left and right with respect to the position-fixing member 36.
On the other hand, the multi-row adjustment sliding side roll 9 can slide left and right with respect to the fixed side roll 8 (which cannot be moved with respect to the position fixing member 36) by the multi-row position adjustment mechanism. It is configured, and the multi-row position adjustment mechanism of the present invention can be configured.

The structure of the multi-row adjustable sliding side roll 9 is shown in FIGS. 14 (a), (b) and (c), and as shown in FIG. 5, the multi-row adjustable sliding side roll 9 The engagement / disengagement body support portion 15 of the engagement / disengagement mechanism D, which constitutes the main part of the present invention, is fixed by a bolt to the portion that slides outward and protrudes from the feeding roll frame 42.

The disengagement body support portion 15 is shown in FIGS. 12A, 12B, C, and D, and the bearing body 15d is integrated between the left and right guide plates 15a and 15b. Is configured. A feeding drive shaft 3 composed of a hexagonal shaft can slide and move left and right inside the bearing body 16d, but the rotational driving force is applied from the feeding drive shaft 3 via the engaging disengagement support portion 15. It is loosely fitted by being transmitably engaged with the multi-row adjustment sliding side roll 9.
A roll-side fixing plate 15c is fixed in a right-angled direction further inside the left and right guide plates 15a and 15b, and a bolt hole 15e is bored in the roll-side fixing plate 15c and inserted into the bolt hole 15e. The engaging disengagement body support portion 15 is fixed to the outer surface of the multi-row adjustment sliding side roll 9 by the bolts.

The pivot shaft 15f of the shaft engaging tool 4 and the pivot shaft 15g of the engaging state maintaining tool 6 are erected between the left and right guide plates 15a and 15b of the engaging disengagement body support portion 15.
The shape of the engaged state maintaining tool 6 is shown in FIGS. 18A and 18B.
The engaging state maintaining tool 6 is a dogleg-shaped locking tool, and the fulcrum crossing spring 16 shown in FIGS. 19A and 19 B performs an engaging operation with the shaft engaging tool 4. It is supported as possible.

The shaft engaging tool 4 is shown in FIGS. 19A and 19B. In FIG. 19C, the shaft engaging tool 4 is pivotally supported between the left and right guide plates 15a and 15b of the engaging disengagement body support portion 15 by the pivotal support shaft 15f of the engaging disengagement body support portion 15. It is possible to rotate around the feeding drive shaft 3. Further, a locking hook 4a is configured at the tip, and one end of the fulcrum crossing spring 16 shown in FIGS. 20A and 20B is configured to be lockable at the portion of the locking hook 4a. There is.

The engaging state maintaining tool 6 is pivotally supported by a pivotal shaft 15g of the engaging state maintaining tool 6 provided on the engaging disengagement body support portion 15, and the fulcrum can be crossed with the pivotal shaft 15g as a fulcrum. The other end of the fulcrum crossing spring 16 is pivotally supported at the position where the fulcrum is crossed.
With this configuration, as shown in FIGS. 9A, 9B, and 9C, the portion of the pressing resin body 17 at the tip of the shaft engaging tool 4 is placed on the outer periphery of the hexagonal feeding drive shaft 3. It is configured to maintain the state in which the feeding drive shaft 3 and the engaging / disengaging body support portion 15 are integrated by being pressed by the fulcrum crossing spring 16 and the engaging state maintaining tool 6 in an elastic urging state.
As a result, the feeding drive shaft 3, the engaging disengagement body support portion 15, and the multi-row adjustment sliding side roll 9 are configured to rotate integrally and slide to the left and right.
When the pressing state of the portion of the pressing resin body 17 is released by the engagement / disengagement mechanism D, the portion of the multi-row adjusting sliding side roll 9 and the sliding roll mechanism A with respect to the feeding drive shaft 3 It is possible to slide left and right, and even if it is adjusted by the multi-row adjustment handle 1, the sliding roll mechanism A of the seed / fertilizer feeding device unit U in the open part is for adjusting the feeding amount to the left and right. It does not slide.

As shown in FIGS. 21 (a), (b) and (c), the pressing resin body 17 is formed in a cap shape formed of an elastic body, and the shaft engaging tool 4 is a feeding drive shaft. 3 is elastically urged so that it can be reliably maintained in the locked state by pressing it.
When adjusting by sliding the gaps between the rows of the various child / fertilizer feeding device units U by the multi-row position adjusting mechanism, the engagement state maintaining tool 6 constituting the engagement / disengagement mechanism D is released. The locking state of the disengaging body support portion 15 and the feeding drive shaft 3 by the pressing resin body 17 and the shaft engaging tool 4 is released.

After the inter-strip adjustment is completed, the state in which the pressing resin body 17 of the shaft engaging tool 4 is pressed against the feeding drive shaft 3 is locked by the fulcrum crossing spring 16 and the engaging state maintaining tool 6, and the engaged state is achieved. It is configured so that the engaged state maintainer 6 does not easily come off when the maintainer 6 exceeds the pivot shaft 15 g.

Multi-row adjustment of the multi-row adjustment handle mechanism C with the feeding drive shaft 3 and the multi-row adjustment sliding side roll 9 integrated by the engagement / disengagement mechanism D configured in the engagement / disengagement body support portion 15. When the handle 1 is rotated to move the feeding drive shaft 3 to the left and right at once for all or multiple rows, the multi-row adjusting sliding side roll 9 is moved along the particle fitting protrusion 8b of the fixed side roll 8. Sliding left and right with the granular material fitting recess 9a fitted, the volume of the granular material fitting portion composed of the granular material fitting protrusion 8b and the granular material fitting recess 9a is adjusted by changing the width of the left and right. , The amount of fertilizer or seeds is adjusted.

However, even when the batch amount is adjusted by this multi-row adjustment handle mechanism C, the feed amount of each row of the multi-row seed / fertilizer feeding device unit U is a constant value or a predetermined value desired by the operator. There are cases where it does not become a value.
In such a case, a fine adjustment mechanism B that enables fine adjustment for each row after batch adjustment by the multi-row adjustment handle mechanism C is provided in the portion of the sliding roll mechanism A.

In the fine adjustment mechanism B, the fine adjustment screw shaft 18 shown in FIGS. 17A and 17B is fitted on the outer circumference of the feeding drive shaft 3, and the fine adjustment screw shaft 18 is fitted with the fine adjustment screw shaft 18. The fine adjustment side roll 11 constituting the fine adjustment mechanism B is slidably fitted on the outer circumference by screw movement.
That is, in the granular material fitting recess 9a of the multi-row adjustment sliding side roll 9, in addition to the above-mentioned granular material fitting protrusion 8b of the fixed side roll 8, the granular material fitting protrusion of the fine adjustment side roll 11 of the fine adjustment mechanism B The portion 11b is also fitted from the side opposite to the particle fitting protrusion 8b of the fixed side roll 8, which is inside the left and right sides.

That is, except that the multi-row adjustment sliding side roll 9 is slid with respect to the particle fitting protrusion 8b of the fixed side roll 8 by adjusting the multi-row adjustment handle mechanism C to adjust the left and right width of the fitting groove. In addition, the fine adjustment mechanism B adjusts the space between the multi-row adjustment sliding side roll 9 and the fine adjustment side roll 11 to the left and right, and between the multi-row adjustment sliding side roll 9 and the fine adjustment side roll 11. The width of the grain fitting groove on the side opposite to that of the fixed roll 8 can be finely adjusted to the left and right.

The fine adjustment side roll 11 is configured as shown in (a) and (b) of FIG. 15, and the fine adjustment knob 11a is loosely fitted to the inner end portion of the fine adjustment side roll 11. There is. Both the fine adjustment side roll 11 and the fine adjustment knob 11a are made of resin, and the resin members play freely between the fine adjustment side roll 11 and the fine adjustment knob 11a so that both can rotate freely. It has a structure that is fitted and integrally supported.

The fine adjustment knob 11a is screwed to an adjustment screw portion 18a provided on the fine adjustment screw shaft 18, and when the fine adjustment knob 11a is rotated, the screw rotates on the adjustment screw portion 18a to the extent of the screw allowance. It is configured so that both the fine adjustment knob 11a and the fine adjustment side roll 11 can be moved to the left and right.
The sliding for fine adjustment to the left and right by the fine adjustment knob 11a of the fine adjustment side roll 11 is performed regardless of the state of the multi-row adjustment sliding side roll 9 of the sliding roll mechanism A and the engaging disengagement body support portion 15. By moving the fine adjustment side roll 11 with respect to the multi-row adjustment sliding side roll 9, the operator additionally adjusts each of the various child / fertilizer feeding device units U by using the fine adjustment mechanism B. It is structured so that it can be done.

In addition to the collective adjustment of all or multiple rows by the multi-row adjustment handle 1 of the multi-row adjustment handle mechanism C, the fine adjustment knob 11a of the fine adjustment side roll 11 is rotated by being arranged in the various child / fertilizer feeding device units U. By this fine adjustment, the feeding amount can be finely adjusted to a desired amount over all or multiple rows of the metering mechanism of the roll type feeding device.

A Sliding roll mechanism B Fine adjustment mechanism C Multi-row adjustment handle mechanism D Engagement disengagement mechanism U Seed / fertilizer feeding device unit 3 Feeding drive shaft 4 Shaft engaging tool 5 Seed feeding device 6 Engagement state maintainer 7 Fertilizer feeding device 8 Fixed side roll 9 Multi-row adjustment sliding side roll 10 Main frame 11 Fine adjustment side roll 11a Fine adjustment picking 11b Grain fitting protrusion 12 Unit mounting rod 13 Seed hopper 14 Fertilizer hopper 15 Engagement disengagement support part 15a / 15b Left and right guide plates 15c Roll side fixing plate 15d Bearing body 15f ・ 15g Pivot shaft 16 Supporting point over spring 17 Pressing resin body 18 Fine adjustment screw shaft 19 Fertilization roll case 20 Seeding roll case 21 One-touch locking tool 22 Fixed side roll case 23 Adjustment position Detent ring 24 Connecting cylinder 25 Handle shaft 26 Adjustment amount mark 27 Adjustment position index body 28 Feeding drive shaft side loose fitting shaft 29 Detent mechanism 30 Free rotation support shaft 31 Suppressing roller 32 Soil covering disk 33 Grooving disk 34 Waterproof cover 35 Parallel link 36 Position fixing member 37 Multi-row adjustment handle frame 38 Adjustment female screw 39 Fine adjustment detent 40 Inner peripheral bearing 41 Outer peripheral bearing 42 Feed roll frame 43 Fine adjustment mechanism frame

Claims (3)

The sliding roll mechanism (A) is fixed to the feeding drive shaft (3), and the feeding drive shaft (3) and the multi-row adjusting handle (1) of the multi-row adjusting handle mechanism (C) for adjusting the feeding amount are attached. The roll opening of the sliding roll mechanism (A) for multiple rows can be adjusted by sliding the feeding drive shaft (3) with the multi-row adjustment handle (1).
A fine adjustment mechanism (B) that enables fine adjustment of the feeding amount for each sliding roll mechanism (A) is provided in addition to the multi-row sliding roll mechanism (A) .
In a structure that allows the multi-row sliding roll mechanism (A) to be adjusted at the same time, when adjusting the spacing between each individual seed / fertilizer feeding device unit (U), the feeding drive shaft (3) and sliding An engagement / disengagement mechanism (D) that enables engagement / disengagement of the dynamic roll mechanism (A) is provided.
The engaging / disengaging mechanism (D) is composed of a shaft engaging tool (4) and an engaging state maintaining tool (6), and the shaft engaging tool (4) is brought into contact with the feeding drive shaft (3). In the state, the shaft engaging tool (4) can be fixed to the engaging state by the engaging state maintaining tool (6).
The engaging state maintaining tool (6) is rotated around the feeding drive shaft (3) in a state of being engaged with the shaft engaging tool (4) to maintain the engaging state with the shaft engaging tool (4). A metering mechanism for a roll-type feeding device, characterized in that it has a structure that crosses a fulcrum that crosses a pivot pin between the tool (6) . In the metering mechanism of the roll-type feeding device according to claim 1 ,
The sliding roll mechanism (A) and the multi-row adjustment handle mechanism (C) are attached to the unit mounting rod (12).
The feeding drive shaft (3) is passed through the hexagonal shaft fitting hole of the fertilizer application / sowing roll constituting the sliding roll mechanism (A).
The other end of the feeding drive shaft (3) is fixed to the feeding drive shaft side loose fitting shaft (28) of the multi-row adjustment handle mechanism (C).
The feeding drive shaft side loose fitting shaft (28) fixed to the end of the feeding drive shaft (3) is connected to the multi-row adjustment handle shaft (25) in a loosely fitted state.
The multi-row adjustment handle shaft (25) is rotated by the rotation of the multi-row adjustment handle (1), and the feeding drive shaft side loose fitting shaft (28) and the feeding drive shaft (3) are slid for the multi-row position adjustment. A metering mechanism for a roll-type feeding device, which is characterized by being allowed to rotate. In the metering mechanism of the roll-type feeding device according to claim 2 ,
A plurality of screw grooves (25a) are engraved on the multi-row adjustment handle shaft (25) which is fixed and rotated by the multi-row adjustment handle (1) of the multi-row adjustment handle mechanism (C). The number of screw grooves (25a) in the book and
A detent mechanism (29) for maintaining the rotated state of the multi-row adjustment handle (1) is provided so that the rotation position of the multi-row adjustment handle (1) can be fixed in a plurality of stages, and the number of screw grooves (25a) is increased. , The metering mechanism of the roll-type feeding device, which is characterized by enabling fine adjustment in stages by the multiplier of the number of fixed points of the rotation position.

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