CN119563445B - A detection sensor for automatic row alignment in a corn combine harvester - Google Patents

Abstract

The invention relates to the technical field of detection sensors, in particular to an automatic alignment detection sensor of a corn combine harvester, which comprises a frame, a connecting box, a toggle mechanism and a pushing mechanism for pulling out a blocking object, wherein a rotating through hole is formed in the bottom surface of the frame, and the top end of the connecting box is fixedly connected with the bottom surface of the frame. According to the invention, the frame is arranged on the harvester, then the position sensing element on the stirring mechanism is utilized to detect the position of the corn stalks, when a plurality of detection signals appear due to the fact that the blocking object is contacted with the position sensing element at the same time, the stirring mechanism is started to drive the plurality of box bodies to rotate separately, so that the plurality of box bodies push up the blocking object which can block measurement, the pushing mechanism is started to drive the lowest connecting plate to move to a proper position to detect the position of the corn stalks again, the detection precision is improved, and when the corn stalks are planted densely, the total length of the plurality of box bodies is shortened by utilizing the stirring mechanism, so that the stirring mechanism is convenient to reset after detection, and the corn stalks are convenient to use.

Description

Automatic alignment detection sensor of corn combine harvester

Technical Field

The invention relates to the technical field of detection sensors, in particular to an automatic alignment detection sensor of a corn combine harvester.

Background

The corn field planted at high density and narrow distance is a planting technology for improving the light energy utilization rate and yield of a group by increasing the corn plants per unit area, when corn stalks planted at high density and narrow distance are harvested by utilizing a corn combine harvester, the existing row control technology is difficult to accurately identify and adapt to the layout of the closely arranged crops, so that the problems of missed cutting, damaged plants and the like possibly occur in the harvesting process, the traditional row control detection method mainly comprises two types of non-contact detection and contact detection, the non-contact detection is carried out through a camera or a radar, the application of the method is limited by a working environment, the adaptability is poor, the cost is high, the contact detection is carried out through a device provided with a mechanical sensor, various corn stalks which are dumped manually or naturally possibly exist in part of corn fields, and during harvesting, the dumped corn stalks possibly contact with the sensor to influence the accuracy of a contact detection mode, and the corn is inconvenient for the narrow distance.

Disclosure of Invention

The invention aims to provide an automatic alignment detection sensor of a corn combine harvester so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

An automatic alignment detection sensor of a corn combine harvester, comprising:

Frame, connection box, be used for dialling the toggle mechanism and the pushing mechanism who blocks the thing, the rotation through-hole has been seted up to the frame bottom surface, connection box top with frame bottom surface fixed connection, the inside angle detector that is provided with of connection box, and angle detector fixedly connected with detection axle, detection axle rotates and cup joints in rotation through-hole inside, and detection axle top fixed the cup joints the base, toggle mechanism is located base one end, toggle mechanism includes a plurality of box bodies of vertical range in proper order, and a plurality of box body one side all is provided with the connecting plate, a plurality of equal fixedly connected with in connecting plate one side a plurality of position sensing element, and a plurality of box body inside all is provided with contact response PCB board, a plurality of contact response PCB board all with a plurality of position sensing element electric connection on the adjacent connecting plate, except that being located the connecting plate of below, other connecting plate one side all with adjacent box body one side fixed connection, a plurality of box body opposite side both ends all fixedly connected with loop bar, except that being located the below square box body, two loop bars on other box body all rotate and are connected with the support arm round one end, and support arm round one side outside the support arm round support arm outside the side of the support arm round support arm outside the support arm round support arm.

The device is further characterized in that the outer side wall of the base is fixedly connected with a reset spring, and one end of the reset spring is fixedly connected with an inner side wall of the frame through a connecting piece.

The fixing device is characterized in that one end of the base is fixedly connected with a fixing rod, one end of the fixing rod is rotationally connected with a guide rail, the other sides of the two box bodies positioned at the uppermost part and the lowermost part are fixedly connected with sliding blocks, and the two sliding blocks are in sliding clamping connection with the inside of the guide rail.

The guide rail is provided with a rotating plate in a matching way, one end of the rotating plate is provided with a rotating hole, the inner side wall of the rotating hole is rotationally sleeved with the outer side wall of the connecting box, a clamping block is slidably clamped in the guide rail, one end of the clamping block is rotationally connected with a connecting shaft, the top surface of the other end of the rotating plate is fixedly connected with a pneumatic push rod, and the movable end of the pneumatic push rod is fixedly connected with one end of the connecting shaft.

The box body is characterized in that the contact modules are fixedly connected to one end of the bottom surface of each box body except the box body positioned at the lowest position, the power supply modules are fixedly connected to the other ends of the top surfaces of the other box bodies except the box body positioned at the highest position, and the contact modules on two adjacent box bodies are movably connected with the power supply modules.

The power supply box is characterized in that the other ends of the top surfaces of other box bodies except the box body positioned at the uppermost part are fixedly connected with two U-shaped plates, the two U-shaped plates on any box body are respectively positioned at two opposite sides of the adjacent power supply module, the two ends of the top surface of any U-shaped plate are rotationally connected with toothed rollers, toothed belts are rotationally sleeved between the outer side walls of the two toothed rollers on any U-shaped plate, two driving motors are arranged below any U-shaped plate, any driving motor is positioned in the adjacent box body, and the motor end of any driving motor is fixedly connected with one end of one toothed roller on the adjacent U-shaped plate.

Further characterized in that the pushing mechanism comprises:

U type frame, cut type support and slide rail, U type frame fixed connection in base one end department, and rotate between the two arms of U type frame and be connected with accommodate the lead screw, accommodate the lead screw and be positive and negative tooth lead screw, cut type support includes a plurality of branches, is located two branch one ends of cutting type support one end department and all rotate and be connected with the extension board, and two equal fixedly connected with of extension board one end closes a section of thick bamboo soon, two it closes the section of thick bamboo inside wall soon all to close with accommodate the lead screw lateral wall soon and be connected, slide rail one side fixed connection in the connecting plate opposite side one end department that is located the below, the slide rail includes two parallel slides, and two inside equal sliding joint of slide have the removal cardboard, be located two branch one ends of cutting type support other end department and be connected with two removal cardboard one end rotations respectively.

The motor box is fixedly connected to one end of the U-shaped frame, a power motor is arranged in the motor box, and the motor end of the power motor is fixedly connected with one end of the adjusting screw rod.

The clamping groove is formed in the other side of the connecting plate located at the lowest position, one ends of the outer side walls of the rotating shafts of the scissor-type support located in the middle are fixedly sleeved with convex rings, and any convex ring is movably clamped in the clamping groove.

Further characterized in that one side of the supporting rod of the scissor bracket is of a chamfer structure.

Compared with the prior art, the invention has the beneficial effects that:

1. Through installing the frame to the harvester, then utilize the position sensing element that a plurality of connecting plates on the toggle mechanism are connected to detect maize stalk position, if the barrier contacts position sensing element simultaneously and leads to appearing a plurality of detection signals, start the toggle mechanism and drive a plurality of box body separation rotations, make a plurality of box bodies push up probably blocking the measured barrier, and start the connecting plate that the actuating mechanism drove the bottommost and remove to suitable position and detect maize stalk position once more, thereby improve the detection precision, and when maize stalk is planted compactly, thereby the accessible makes a plurality of box body overall lengths shorten and is convenient for the toggle mechanism reset after detecting, thereby detect next time, and convenient use.

2. When the harvester moves, the plurality of box bodies can be driven to synchronously move, so that the position sensing elements on the plurality of box bodies are abutted against the corn stalks, the corn stalks are driven to rotate by taking the adjacent detection shafts as the center along with the movement of the harvester after being sensed to leave the positions of the adjacent detection shafts, until the corn stalks leave the plurality of box bodies, the rotation angles of the plurality of box bodies and the detection shafts are measured through the angle detector, the specific positions of the corn stalks and the detection shafts are calculated through the calculation formula, effective detection data are provided for subsequent alignment control, alignment errors are reduced, and after the corn stalks leave the plurality of box bodies, the base can drive the detection shafts and the plurality of box bodies to reset through the reset springs so as to carry out next detection;

3. When the blades, the cornstalks with the periphery being knocked down or the cornstalks which are naturally inclined are contacted with the position sensing element, and excessive position information is caused, the pneumatic push rod is started to push the guide rail through the clamping block to rotate the part, so that the guide rail is pulled out of the bottommost box body through the two sliding blocks, other box bodies are moved, the bottommost box bodies are enabled to rotate through the adjacent sleeve rod and the supporting arm to push up the blocking object, besides the bottommost box bodies, the position sensing elements on the other box bodies are contacted with the adjacent power supply module through the contact module to supply power, the box bodies are naturally separated after the other box bodies are rotated through the adjacent sleeve rod and the supporting arm, the position sensing elements on the other box bodies are not operated any more, invalid information is reduced, and at the moment, the power motor can be started to drive the adjusting screw rod to rotate, so that the adjusting screw rod drives the two screwing cylinders to move oppositely, the bottommost box bodies are enabled to stretch to move to the proper positions, the bottommost box bodies are enabled to move to the positions below the other box bodies to detect cornstalks again, the detection accuracy is improved, after the detection is completed, the plurality of box bodies are driven by the pneumatic push rod to drive the guide rail to contact with the adjacent power supply module through the reset module to contact with the adjacent power supply module, and the contact module to the adjacent power supply module, and the contact roller is prevented from being contacted with the adjacent power supply module;

4. When corn stalk is planted densely, after one corn stalk is detected, when a plurality of box bodies, the connecting plate and the detection shaft are driven by the reset spring on the base to reset, the corn stalk can be blocked by other corn stalks and can not reset completely, the pneumatic push rod can be started to push the guide rail to rotate to be vertical through the clamping block, so that the guide rail pulls the plurality of box bodies through two sliding blocks and rotates by means of the adjacent sleeve rods and the support arms, the plurality of box bodies are in a vertical parallel state, the total length of the plurality of box bodies is shortened, and the plurality of box bodies can be reset completely to detect next time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the positional relationship between a toggle mechanism and a push mechanism in the present invention;

FIG. 3 is a schematic view of the structure of the frame and the connection box in the present invention;

FIG. 4 is an exploded view of the toggle mechanism of the present invention;

FIG. 5 is a schematic view of the structure of the guide and the latch according to the present invention;

FIG. 6 is a schematic view of the structure of the case according to the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6A in accordance with the present invention;

FIG. 8 is an exploded view of the structure of the pushing mechanism of the present invention;

fig. 9 is a plan view of the use form of the present invention.

100, A frame, 200, a connecting box, 210, a detection shaft, 220, a base, 221, a reset spring, 300, a toggle mechanism, 310, a box body, 311, a sliding block, 312, a contact module, 313, a power supply module, 314, a U-shaped plate, 315, a toothed belt, 320, a connecting plate, 321, a position sensing element, 322, a clamping groove, 330, a loop bar, 331, a support arm, 340, a fixed bar, 341, a guide rail, 342, a clamping block, 350, a rotating plate, 351, a pneumatic push rod, 400, a pushing mechanism, 410, a U-shaped frame, 411, an adjusting screw rod, 420, a scissor type support, 421, a rotating cylinder, 422, a convex ring, 430, a motor box, 440, a sliding rail, 441 and a movable clamping plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-9, in an embodiment of the present invention, an automatic alignment detection sensor for a corn combine includes:

The device comprises a frame 100, a connecting box 200, a stirring mechanism 300 and a pushing mechanism 400 for pulling out barriers, wherein a rotating through hole is formed in the bottom surface of the frame 100, the top end of the connecting box 200 is fixedly connected with the bottom surface of the frame 100, an angle detector is arranged inside the connecting box 200, the angle detector is fixedly connected with a detection shaft 210, the detection shaft 210 is rotationally sleeved inside the rotating through hole, the top end of the detection shaft 210 is fixedly sleeved with a base 220, the stirring mechanism 300 is located at one end of the base 220, the stirring mechanism 300 comprises a plurality of box bodies 310 which are sequentially vertically arranged, one side of each box body 310 is provided with a connecting plate 320, one side of each connecting plate 320 is fixedly connected with a plurality of position sensing elements 321, the inside of each box body 310 is provided with a contact sensing PCB (printed circuit board), one side of each contact sensing PCB is electrically connected with a plurality of position sensing elements 321 on the adjacent connecting plates 320, one side of each other connecting plate 320 is fixedly connected with one side of the adjacent box body 310, two sleeve rods 330 are fixedly connected with two ends of the other side of each other box body 310 except the box body 310 which is positioned at the lowest, two sleeve rods 331 are rotatably connected with one end of each other, two support arm holes 331 are respectively sleeved on one side of each support arm 310, and two side walls of each support arm are respectively arranged at two side of the two circular inner side walls 310.

Specifically, the angle detector is connected with the detection shaft 210, so that when the detection shaft 210 rotates, the angle detector can detect the rotation angle of the detection shaft 210, which is not described in detail herein, the position sensing elements 321 are arranged in a linear array on the adjacent connection plates 320, and any position sensing element 321 can be touched to make the position sensing element 321 send a signal to the adjacent touch sensing PCB board, so as to obtain the distance between the touched position sensing element 321 and the central axis of the detection shaft 210, which is not described in detail herein, when the frame 100 is fixed to the harvester through the connection piece, in the initial state, the plurality of box bodies 310 are sequentially arranged in an inclined manner, and between two adjacent box bodies 310, the top surface of the box body 310 positioned below is overlapped with the bottom surface of the box body 310 positioned above, so that when the plurality of box bodies 310 are positioned in the initial position, the position sensing elements 321 on all box bodies 310 are positioned on the same plane, and all the position sensing elements 321 are staggered in a linear arrangement, so that the distance from the lowest box body 310 to the position sensing element 321 on the uppermost box body 310 to the detection shaft 210 increases gradually, when any one of the position sensing elements 321 contacts a corn stalk, data can be transmitted to the position of the adjacent contact sensing element PCB, so that the distance from the corn stalk touching the position sensing element 321 to the detection shaft 210 is detected, when a harvester travels, the detection shaft 210 is taken as the origin of coordinates, the plane of the box bodies 310 is taken as the x axis, the travelling direction is taken as the y axis, θ is the angle that the corn stalk touching the position sensing element 321 is deflected by the corn stalk after contacting the corn stalk, h is the distance from one end of the base 220 on the y axis, L is the distance from the detection shaft 210 from the position sensing element 321 touched by the corn stalk, the positions of the cornstalk and the origin are shown in a formula (1.1).

The relative speed of the harvester truck can be calculated from the position of the corn stalks in front of and behind the corn stalks as shown in formula (1.2).

Wherein P is the position of the corn stalk in front and rear, v is calculated by dividing the distance from the last position to the last position by the time between two detections, Δt is the time variation, thus the rotation angle of the base 220 detected by the angle detector and the distance from the position sensing element 321 touched by the corn stalk to the detection shaft 210 can be calculated by the angle and the distance, and the specific position of the corn stalk position in the plane coordinate system can be provided for the subsequent row control, so as to reduce the row error, then in the harvesting process of the harvester, when the position sensing element 321 contacts the corn stalk in the harvesting process, if objects such as stalk leaves or nearby stalks which are harvested by the harvester but are touched halfway down can appear, a plurality of position sensing elements 321 simultaneously contact the object to send signals, at this time, other box bodies 310 except the lowest box body 310 can be pushed to rotate through the adjacent sleeve rods 330 and 331, the plurality of box bodies 310 can be separated, and the position sensing element 321 can be pushed up by the harvester, and the position sensing element 320 can be pushed down by the position sensing element 320 to the highest, and the position sensing element 320 can be pushed down by the corn stalk can be pushed down by the position sensing element 320 to the next time, and the position sensing element 320 can be prevented from touching the position of the corn stalk at the next position 320 at the highest, and the position can be touched by the position sensing element 320 at the next position can be contacted by the next position.

Example 1

As shown in fig. 2-5, in the embodiment, the outer side wall of the base 220 is fixedly connected with the return spring 221, one end of the return spring 221 is fixedly connected with an inner side wall of the frame 100 through a connecting piece, one end of the base 220 is fixedly connected with the fixing rod 340, one end of the fixing rod 340 is rotatably connected with the guide rail 341, the other sides of the two box bodies 310 positioned at the uppermost and the lowermost are fixedly connected with the sliding blocks 311, the two sliding blocks 311 are slidably clamped inside the guide rail 341, the guide rail 341 is provided with the rotating plate 350 in a matched manner, one end of the rotating plate 350 is provided with a rotating hole, the inner side wall of the rotating hole is rotatably sleeved with the outer side wall of the connecting box 200, a clamping block 342 is slidably clamped inside the guide rail 341, one end of the clamping block 342 is rotatably connected with the connecting shaft, the top surface of the other end of the rotating plate 350 is fixedly connected with the pneumatic push rod 351, and the movable end of the pneumatic push rod 351 is fixedly connected with one end of the connecting shaft.

In this embodiment, when the plurality of boxes 310 are at the initial position, after the position sensing element 321 on any one of the connection plates 320 is in contact with the corn stalks, all the boxes 310, the connection plates 320, the position sensing element 321, the base 220 and the detection shaft 210 are driven by the corn stalks to rotate around the central axis of the detection shaft 210 along with the travel of the harvesting vehicle, after the corn stalks leave the position sensing element 321, the base 220 can be driven by the adjacent reset spring 221 to reset the detection shaft 210, all the boxes 310, the connection plates 320 and the position sensing element 321, when the corn stalks are planted densely, the total length of the plurality of boxes 310 in the initial state is longer, the corn stalks are likely to be difficult to rotate to a completely reset state during the reset process, at this time, the pneumatic push rod 351 can be started to drive the clamping block 342 to slide on the guide rails 341, so that the abutting guide rail 341 rotates around the center of one end of the fixing rod 340 as an axis, so that the guide rail 341 rotates to a vertical state, the guide rail 341 pulls the plurality of box bodies 310 to synchronously rotate through the sliding blocks 311, other box bodies 310 except the lowest box body 310 rotate through the adjacent loop bars 330 and the supporting arms 331, all box bodies 310 are vertically arranged in parallel, the total length of the plurality of box bodies 310 is shortened, the reset spring 221 is convenient to drive the base 220 and all box bodies 310 to rotate and reset completely, then the pneumatic push rod 351 is started to drive the clamping block 342 to reset, the clamping block 342 is driven to drive the guide rail 341 to reset, the guide rail 341 pulls the uppermost box body 310 to reset through the sliding blocks 311, the plurality of box bodies 310 are restored to the initial position, the next detection is performed, the pneumatic push rod 351 can be configured with the controller to control the start and stop, when the controller has a plurality of position sensing elements 321 touch signals, the end part of the pneumatic push rod 351 can be controlled to lift up, therefore, the other box bodies 310 except the lowest box body 310 rotate, the blocking object is lifted, after the corn stalks are separated from the position sensing element 321, the controller can control the pneumatic push rod 351 to vertically and then reset through the clamping block 342 to facilitate the resetting of the overall length of the box bodies 310 to the initial state after shortening, the controller is in the prior art, and is not repeated herein, when the box bodies 310 rotate by taking the central axis of the detection shaft 210 as the axis, the central axes of the detection shaft 210 and the connecting box 200 are positioned on the same central axis, so that the pneumatic push rod 351 and the rotating plate 350 can synchronously rotate around the central axis of the detection shaft 210.

As shown in fig. 6-7, in this embodiment, except for the case 310 located at the lowermost position, one end of the bottom surface of the other case 310 is fixedly connected with a contact module 312, except for the case 310 located at the uppermost position, the other end of the top surface of the other case 310 is fixedly connected with a power supply module 313, the contact modules 312 on two adjacent cases 310 are movably connected with the power supply module 313, except for the case 310 located at the uppermost position, the other end of the top surface of the other case 310 is fixedly connected with two U-shaped plates 314, the two U-shaped plates 314 on any case 310 are respectively located at two opposite sides of the adjacent power supply module 313, the two ends of the top surface of any U-shaped plate 314 are rotatably connected with toothed rollers, toothed belts 315 are rotatably sleeved between the outer side walls of the two toothed rollers on any U-shaped plate 314, two driving motors are arranged below any U-shaped plate 314, and the motor ends of any driving motor are located inside the adjacent case 310 and are fixedly connected with one end of one toothed roller on the adjacent U-shaped plate 314.

In particular, in the implementation, when the multiple boxes 310 are in the initial state, between two adjacent boxes 310, the power supply module 313 on the lower box 310 is abutted against the contact module 312 on the upper box 310, the contact module 313 contacts with the contact module 312, so that the contact induction PCB board on the other boxes 310 except the lowest box 310 and the adjacent position induction element 321 are powered normally, the contact power supply mode is not repeated in the prior art, when the pneumatic push rod 351 starts to drive the multiple boxes 310 to separate, the other boxes 310 push up to push away the blocking object, except the lowest box 310, the contact module 312 on the other boxes 310 loses the power supply due to the separation of the power supply module 313, the redundant contact signal is avoided, when the contact module 312 is pressed onto the adjacent power supply module 313, the toothed belt on the opposite sides of the power supply module 313 is driven by the adjacent toothed belt roller to rotate continuously, the outer side wall of the toothed belt 315 is driven by the adjacent toothed belt, so that the toothed belt 315 can be meshed with the adjacent toothed belt 315 by the adjacent roller, and the toothed belt can be driven by the motor 313, and the toothed belt can be meshed with the adjacent toothed belt 315 conveniently, and the toothed belt can be driven by the adjacent toothed belt 315.

As shown in fig. 1 or 8, in the present embodiment, the pushing mechanism 400 includes:

U type frame 410, cut type support 420 and slide rail 440, U type frame 410 fixed connection is in base 220 one end department, and rotate between the two arms of U type frame 410 and be connected with accommodate the lead screw 411, accommodate the lead screw 411 and be positive and negative tooth lead screw, cut type support 420 includes a plurality of branches, be located two branch one ends of cut type support 420 one end department and all rotate and be connected with the extension board, and two extension board one ends all fixedly connected with closes section of thick bamboo 421 soon, two interior side walls of closing the section of thick bamboo 421 soon all close with accommodate the lead screw 411 lateral wall and be connected, slide rail 440 one side fixedly connected in the connecting plate 320 opposite side one end department that is located the below, slide rail 440 includes two parallel slides, and two inside all sliding joint have the removal cardboard 441, two branch one ends that are located cut type support 420 other end department respectively with two removal cardboard 441 one end rotation connection, U type frame 410 one end fixedly connected with motor box 430, and motor box 430 inside is provided with power motor end and accommodate lead screw 411 one end fixedly connected.

In specific implementation, the scissor bracket 420 is in the prior art, and is not described herein, after the plurality of boxes 310 are separated to push up the blocking object, the power motor is started to drive the adjusting screw 411 to rotate, and the adjusting screw 411 is a positive and negative screw, so that when the adjusting screw 411 rotates, the two screwing cylinders 421 can be driven to move in opposite directions or back to back, so that the two screwing cylinders 421 drive the scissor bracket 420 to extend or retract to enable the lowest connecting plate 320 to move to the position where the cornstalk is sensed last time, the power motor can be controlled to open and close by the motor controller, and the motor controller is in the prior art, and is not described herein, so that the scissor bracket 420 controls the position of the lowest connecting plate 320, and a wire can be connected between the lowest connecting plate 320 and a contact sensing PCB in the lowest box 310 to supply power, and the wire can be arranged on the scissor bracket 420 in a bonding manner.

Example two

On the basis of the first embodiment, the stability between the scissor bracket 420 and the lowermost connecting plate 320 is improved by the convex ring 422.

As shown in fig. 6 and 8, in the present embodiment, the other side of the connecting plate 320 located at the lowest position is provided with a clamping groove 322, one end of each of the outer side walls of the plurality of rotating shafts located in the middle of the scissor bracket 420 is fixedly sleeved with a convex ring 422, any convex ring 422 is movably clamped inside the clamping groove 322, and one side of the supporting rod of the scissor bracket 420 is of a chamfer structure.

In specific implementation, the convex ring 422 on the middle rotating shaft of the scissor type support 420 can be clamped into the clamping groove 322 on the lowest connecting plate 320, so that the contact between the scissor type support 420 and the lowest connecting plate 320 is increased, the stability of the lowest connecting plate 320 is improved, and when the scissor type support 420 is retracted, the edge of the supporting rod of the scissor type support 420 is thinner due to the fact that the supporting rod of the scissor type support 420 is of a chamfer structure, and therefore two adjacent supporting rods on the scissor type support 420 form a scissor-like structure, and blades and the like possibly extending into the supporting rod of the scissor type support 420 can be cut.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. An automatic alignment detection sensor of a corn combine harvester, comprising:

A frame (100) with a rotation through hole on the bottom;

The connecting box (200) is fixedly connected with the bottom surface of the frame (100), an angle detector is arranged in the connecting box (200), the angle detector is fixedly connected with a detection shaft (210), the detection shaft (210) is rotationally sleeved in the rotating through hole, and the top end of the detection shaft (210) is fixedly sleeved with a base (220);

The stirring mechanism (300) is positioned at one end of the base (220), the stirring mechanism (300) comprises a plurality of box bodies (310) which are sequentially and vertically arranged, one sides of the box bodies (310) are respectively provided with a connecting plate (320), one sides of the box bodies (320) are respectively fixedly connected with a plurality of position sensing elements (321), the inside of the box bodies (310) are respectively provided with a contact sensing PCB (printed circuit board), the contact sensing PCB is respectively electrically connected with the position sensing elements (321) on the adjacent connecting plates (320), one side of the other connecting plates (320) is respectively fixedly connected with one side of the adjacent box body (310) except the connecting plate (320) positioned at the lowest part, the two sleeve rods (330) on the other box bodies (310) are respectively connected with two sleeve rods (330) in a rotating way except the box body (310) positioned at the lowest part, one end of any one of the support arms (331) is respectively provided with a circular hole, and the two inner side walls (331) on any one end of the box body (310) are respectively sleeved with two circular sleeve rods (330) on the lower side walls of the lower box body;

The pushing mechanism (400) is positioned at one side of the lowest box body (310).

2. The automatic alignment detection sensor of a corn combine of claim 1, wherein the pushing mechanism (400) comprises:

the U-shaped frame (410) is fixedly connected to one end of the base (220), an adjusting screw rod (411) is rotatably connected between two arms of the U-shaped frame (410), and the adjusting screw rod (411) is a positive and negative screw rod;

the shear type support (420) comprises a plurality of support rods, one ends of two support rods positioned at one end of the shear type support (420) are respectively and rotatably connected with support plates, one ends of the two support plates are respectively and fixedly connected with a screwing cylinder (421), and the inner side walls of the two screwing cylinders (421) are respectively and rotatably connected with the outer side wall of the adjusting screw rod (411);

One side of the sliding rail (440) is fixedly connected to one end of the other side of the connecting plate (320) positioned at the lowest position, the sliding rail (440) comprises two parallel sliding ways, the movable clamping plates (441) are in sliding clamping connection with the two sliding ways, and one ends of two supporting rods positioned at the other end of the scissor-type support (420) are respectively connected with one ends of the two movable clamping plates (441) in a rotating mode.

3. The automatic alignment detection sensor of a corn combine according to claim 2, wherein a return spring (221) is fixedly connected to an outer side wall of the base (220), and one end of the return spring (221) is fixedly connected to an inner side wall of the frame (100) through a connecting piece.

4. The automatic alignment detection sensor of a corn combine harvester according to claim 3, wherein one end of the base (220) is fixedly connected with a fixing rod (340), one end of the fixing rod (340) is rotatably connected with a guide rail (341), the other sides of the two box bodies (310) positioned at the uppermost part and the lowest part are fixedly connected with sliding blocks (311), and the two sliding blocks (311) are in sliding clamping connection with the inside of the guide rail (341).

5. The automatic alignment detection sensor of a corn combine harvester according to claim 4, wherein the guide rail (341) is provided with a rotating plate (350) in a matching way, one end of the rotating plate (350) is provided with a rotating hole, the inner side wall of the rotating hole is rotationally sleeved with the outer side wall of the connecting box (200), a clamping block (342) is slidably clamped inside the guide rail (341), one end of the clamping block (342) is rotationally connected with a connecting shaft, the top surface of the other end of the rotating plate (350) is fixedly connected with a pneumatic push rod (351), and the movable end of the pneumatic push rod (351) is fixedly connected with one end of the connecting shaft.

6. The automatic alignment detection sensor of a corn combine harvester according to claim 2, wherein one end of the bottom surface of the other box bodies (310) except the box body (310) positioned at the lowest position is fixedly connected with a contact module (312), the other end of the top surface of the other box bodies (310) except the box body (310) positioned at the highest position is fixedly connected with a power supply module (313), and the contact modules (312) on two adjacent box bodies (310) are movably connected with the power supply module (313).

7. The automatic alignment detection sensor of a corn combine according to claim 6, wherein, except for a box body (310) located at the uppermost part, two U-shaped plates (314) are fixedly connected to the other end of the top surface of the other box body (310), the two U-shaped plates (314) on any box body (310) are respectively located at two opposite sides of an adjacent power supply module (313), toothed rollers are rotatably connected to two ends of the top surface of any U-shaped plate (314), toothed belts (315) are rotatably sleeved between the outer side walls of the two toothed rollers on any U-shaped plate (314), two driving motors are arranged below any U-shaped plate (314), and the motor ends of any driving motors are fixedly connected with one end of one toothed roller on the adjacent U-shaped plate (314).

8. The automatic alignment detection sensor of a corn combine according to claim 7, wherein one end of the U-shaped frame (410) is fixedly connected with a motor box (430), and a power motor is arranged inside the motor box (430), and a motor end of the power motor is fixedly connected with one end of the adjusting screw rod (411).

9. The automatic alignment detection sensor of the corn combine harvester according to claim 2, wherein a clamping groove (322) is formed in the other side of the lowest connecting plate (320), one end of the outer side wall of each of the plurality of rotating shafts of the scissor-type support (420) positioned in the middle is fixedly sleeved with a convex ring (422), and any convex ring (422) is movably clamped in the clamping groove (322).

10. The automatic alignment detection sensor of corn combine as in claim 9, wherein the scissor supports (420) are beveled on one side of the struts.