JP2006122013A - Crop body pull-out machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crop body pull-out machine whose soil-dropping devices can easily be maintained without being clogged. <P>SOLUTION: This crop body pull-out machine is characterized by disposing rotators 41 which are rotated, while contacting with the soil-adherent sites of a crop body P conveyed with nipping and conveying endless members 22, 22, and the vertical axis-having rotation shafts 43 of the rotators 41, in the soil-dropping devices 40, disposing a soil-dropping action portion 41a long formed along the rotation axis at a place apart from the rotation shaft 43 and a connection portion 41b for connecting the soil-dropping action portion 41a to the rotation shaft 43 in each rotator 41, disposing the connection portion 41b on the upper side of each soil-dropping action portion 41a, and not disposing the connection portion on the lower side of each soil-dropping action portion 41a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention belongs to the technical field of a crop body extracting machine for extracting crop bodies such as green soybeans vegetated in a field.

Conventionally, there has been a drawing machine for crops such as green soybeans as described in Patent Document 1 below. The crop body pulling machine described in this document includes a traveling device for self-propelling the machine body, and a nipping conveyance for holding the stalk of the crop body to be vegetated on the field and transporting the crop body obliquely upward on the rear side to pull the crop body from the field. An endless body and a soil removal device for dropping soil adhering to the root of the crop body conveyed by the sandwiched conveyance endless body are provided, and the earthing device is a crop conveyed by the sandwiched conveyance endless body It has a rotating body that rotates while in contact with the soiled part of the body.
JP 2001-103826 A

  In the crop body drawing machine described in Patent Document 1, soil, roots, weeds, and the like that have entered the rotation axis side from the outer peripheral side of the rotary body of the soil removal device are easily entangled around the rotation axis of the rotary body. And, when the clogging becomes large, it will not be possible to perform a good soil fall. Also, soil, roots, weeds and the like entangled around the rotation axis cannot be easily removed, and maintenance of the soil removal device cannot be easily performed.

  Then, this invention makes it a subject to make a soil dropping apparatus hard to produce clogging and to perform maintenance easily in a crop body drawing machine.

In order to solve the above problems, the present invention is configured as follows.
According to the first aspect of the present invention, the traveling device 1 for self-propelling the machine body and the lower part of the crop body P vegetated on the field E during traveling are sandwiched and conveyed to the upper rear side to pull out the crop body P from the field E. In the crop body pulling machine provided with the sandwiching and transporting endless bodies 22 and 22 and the earth removing device 40 for dropping the soil adhering to the root r of the crop body P transported by the sandwiching and transporting endless bodies 22 and 22 The device 40 includes a rotating body 41 that rotates while contacting the soiled portion of the crop body P conveyed by the sandwiched conveying endless bodies 22, 22, and a rotating shaft 43 of the rotating body 41 whose axis is in the vertical direction. The rotary body 41 is provided with an earthing action part 41a formed long along the axis of rotation at a location away from the rotation axis 43, and a connecting part 41b for connecting the earthing action part 41a to the rotation axis 43, On the upper side of the earthing action part 41a, the connecting part 41b Provided, in the lower side of the soil down action portion 41a is obtained by the Crops withdrawal machine, characterized in that the structure without the said connection portion.

  The invention according to claim 2 is the crop body pulling machine according to claim 1, characterized in that the lower part of the earthing action part 41a is provided so as to protrude downward from the lower end part of the rotating shaft 43. is there.

A third aspect of the present invention is the crop body pulling machine according to the first or second aspect, wherein the earthing action portion 41a is formed of a rod-shaped member.
In the crop body pulling machine according to the first to third aspects of the present invention, the lower part of the crop body P in which the body is self-propelled by the traveling device 1 and the nipping and conveying endless bodies 22 and 22 are vegetated on the field E during the traveling. And the crop body P is pulled out from the field E. While the nipping and transporting endless bodies 22 and 22 are transporting the crop body P, the rotating body 41 of the soil removal device 40 rotates while contacting the soiled portion of the crop body P and adheres to the root r of the crop body P. Drop the soil. The rotary body 41 of the earthmoving device 40 has a rotary shaft 43 whose axis is in the vertical direction, a earthing action part 41a formed long along the rotary axis at a location away from the rotary shaft 43, and the earthing device. A connection part 41b for connecting the action part 41a to the rotary shaft 43 is provided, the connection part 41b is provided on the upper side of the earthing action part 41a, and the connection part is not provided on the lower side of the earthing action part 41a. Therefore, soil, roots, weeds and the like that have entered the rotational axis side from the outer peripheral side of the soil dropping operation portion 41a are easily pulled out downward. Moreover, even if soil, roots, weeds, or the like are entangled with the soil dropping action portion 41a, they can be easily removed simply by pressing the entangled soil, roots, weeds, etc. downward.

  The crop body pulling machine of the invention according to claim 2 further includes a lower part of the earthing action part 41a protruding downward from a lower end part of the rotating shaft 43, so that the outer periphery side of the earthing action part 41a is provided. The soil, roots, weeds, and the like that have entered the rotation axis side from the bottom are better removed.

  The crop body pulling machine of the invention according to claim 3 further includes the earthing action part 41a formed of a rod-like member, so that soil, roots, weeds and the like are not easily entangled in the earthing action part 41a. Removal of soil, roots and weeds can be made easier.

  In the inventions according to claims 1 to 3, soil, roots, weeds, etc. that have entered the rotational axis side from the outer peripheral side of the soil-carrying action part 41a can easily escape downward, so that Clogging such as grass and weeds is less likely to occur, and the soil can be dropped well. Further, even if soil, roots, weeds, etc. are entangled with the earthing action part 41a, they can be easily removed by simply pushing down the entangled soil, roots, weeds, etc., and maintenance of the earthing device can be performed easily. .

  In the second aspect of the invention, further, the soil, roots, weeds and the like that have entered the rotational axis side from the outer peripheral side of the earth-moving action portion 41a can be more easily released downward, and the earth-falling can be further improved. Yes.

  In the invention of claim 3, soil, roots, weeds, etc. are not easily entangled in the soil-carrying action part 41 a, and the entangled soil, roots, weeds, etc. can be removed more easily. The maintenance of the earthmoving device can be performed more easily.

Below, the example of the crop body extractor which implemented this invention, specifically, the green soybean extractor which extracts the crop body of the green soybean planted in a field from a field is demonstrated in detail.
As shown in the figure, this crop body drawing machine is provided with a traveling device 1 and a working part W for harvesting the crop body P. The traveling device 1 moves the body in the traveling direction d in front of the body. The working unit W carries out the harvesting work of the crop body P during the running. As a result, the crop body extracting machine mechanically and continuously harvests the crop bodies P arranged along the machine body traveling direction d.

  The traveling device 1 has a four-wheel configuration provided with a pair of left and right drive-rotating rear wheels 5 and 5 and a pair of left and right rotatable front wheels 27 and 27 that travel on valley portions V on both sides of a basket U formed in a field E. Thus, the airframe is configured to self-run. The rear wheels 5 and 5 are driven to rotate when power is transmitted from the engine 6 disposed at the rear of the machine body. Specifically, the motive power of the engine 6 is transmitted to a transmission mechanism in the transmission case 7 disposed on the front side of the engine 6 and connected to the engine 6, and the wheels mounted on the left and right sides of the transmission case 7 through the transmission mechanism. The transmission case 8 is transmitted to a transmission mechanism in the transmission case 8, and is transmitted to the rear wheel axle 9, 9 projecting outward in the left-right direction at the lower part of the wheel transmission case 8, 8 and attached to the axle 9, 9. The rear wheels 5 and 5 are driven to rotate. The rear wheels 9, 9 can also be configured as crawlers.

  In addition, a walking-type control handle 10 is provided at the rear of the fuselage so that the left and right grips 11 and 11 are positioned at the rear end of the fuselage as a control unit of the fuselage. The left and right handle frames 12, 12 extending forward from the grip portions 11, 11 of the steering handle 10 are inclined downward and extend forward, and the bases are fixed to the transmission frames 17, 17 to the pulling and conveying device 2. In addition, side clutch levers 13 and 13 that are operated by the operator's gripping operation are provided on the left and right sides of the grip portions 11 and 11 of the steering handle 10, thereby individually transmitting power to the left and right rear wheels 5 and 5. The aircraft can be easily turned. Further, an operation lever 14 for operating a clutch for connecting / disconnecting the transmission to the drawing / conveying device 2 is disposed, and an operation lever for operating a clutch for connecting / disconnecting the transmission from the engine 6 to the transmission mechanism in the transmission case 7. Etc. are also arranged.

Next, the working unit W will be described.
The working unit W is provided with a pulling and conveying device 2 that conveys upward while sandwiching the root portion r of the crop body P during work traveling and extracts the crop body P from the field E. Accordingly, the vehicle body is caused to travel in the traveling direction d by the traveling device 1, and during the traveling, the pulling and conveying device 2 conveys the crop body P upward with the root r of the crop body P interposed therebetween, and the crop body P is transferred to the field E. Pull out from. Here, the root part r refers to a ground part of the ground surface position of the crop body P or the vicinity thereof, a trunk part in the ground, or a root part in the ground, and is referred to as a root part.

  The working part W is arranged at the front part of the machine body and has two left and right transmission frames 17 and 17 extending obliquely upward from the front part of the mission case 7 and two left and right parts extending from the front part of the mission case 7 to the front side. Are attached to the front ends of the support frames 18 and 18.

  The drawing / conveying device 2 is provided with upper drive sprockets 19 and 19, disk-like pulleys 20 and 20 having flanges on the upper and lower sides, and idle sprockets 21, 21, 21. The chain conveying endless bodies 22 and 22 having a chain structure, which is the conveying body of the drawing and conveying apparatus 2, are wound around, and the left and right nipping and conveying endless bodies 22 and 22 are driven to rotate by the driving rotation of the upper drive sprockets 19 and 19. .

  With regard to the transmission configuration to the left and right nipping and conveying endless bodies 22, 22, the power in the transmission case 7 is transmitted to the drive shafts 23, 23 in the left and right transmission frames 17, 17, and then the transmission frames 17, 17 Are transmitted to the drive shafts 19a, 19a of the upper drive sprockets 19, 19 by transmission mechanisms (sprockets 17b, 17b and a transmission chain 17c) in the transmission cases 17a, 17a attached to the upper ends of the upper drive sprockets 19, 19 And the left and right nipping and conveying endless bodies 22 and 22 rotate so that the outer peripheral portion of the endless body on the left and right center side moves upward in the rear side. The upper drive sprockets 19, 19, the lower pulleys 20, 20, and the free-wheeling sprockets 21, 21, 21... Are attached to frames 24, 24 arranged on the inner sides of the nipping and conveying endless bodies 22, 22. The frames 24, 24 are attached to the upper surfaces of the transmission cases 17 a, 17 a fixed to the upper ends of the transmission frames 17, 17 and the front ends of the support frames 18, 18. Further, covers 25 and 25 are attached to the frames 24 and 24 so as to cover the upper and left and right outer sides of the nipping and conveying endless bodies 22 and 22. Flexible sheets 25a, 25a, such as rubber plates, are attached to the left and right central ends of the left and right covers 25, 25 so as to protrude into the gap between the left and right covers 25, 25. The flexible sheet 25a, 25a such as a rubber plate covers the gap between the stalk of the crop body P and the left and right inner ends of the left and right covers 25, 25 that are sandwiched and conveyed by the nipping and conveying endless bodies 22 and 22. Thus, it is difficult for the final harvest B under the crop body P to be sandwiched and conveyed to enter the gap between the left and right covers 25 and 25 to be damaged.

  The nipping and conveying endless bodies 22 and 22 have the same configuration as the transmission chain, and the upper and lower connecting plates 22a, 22b... And the both ends of the upper and lower connecting plates are overlapped with the ends of the other connecting plates. A connecting pin 22c that is movably connected, a collar 22d that is rotatably mounted on the outer periphery of the connecting pin 22c, between the upper and lower connecting plates 22a, 22b, and a retaining pin 22c. With a retaining ring. When the nipping and conveying endless bodies 22 and 22 having such a chain structure are used, the nipping and conveying endless bodies 22 and 22 can be configured to have a thin vertical width, and can be configured to be a nipping and conveying endless body having a wide belt structure. It can be easily placed low on the ground side, and as a result, the lower part of the crop body P can be pinched as much as possible, and the final harvested product B near the ground is pinched and damaged by the pinching and conveying endless body. It can be difficult.

  Moreover, in order to pinch the stem part of the crop body P reliably, the clamping conveyance endless bodies 22 and 22 having the chain structure of this example are formed with uneven portions 22e... On the outer peripheral side portions of the connecting plates 22a, 22b. Yes. Therefore, crops introduced between the left and right nipping and transporting endless bodies 22 and 22 are provided adjacent to the left and right nipping and transporting endless bodies 22 and 22 that circulate around a rotation axis provided in the front and back direction in the front and back direction when viewed from the front. The concavo-convex portions 22e formed on the outer peripheral side portions of the connecting plates 22a, 22b, and the like can be securely held between the stems of the connecting plates 22a, 22b, and transported upward on the rear side so that the crop body P is removed from the field. Can be pulled out properly.

  Further, in the sandwiched transport endless body 22 on one side of the left and right sides, an uneven portion 22e is formed on the outer peripheral side of the upper connection plate 22a, and on the outer side of the lower connection plate 22b in the sandwiched transport endless body 22 on the other side of the left and right sides. Are formed so that the uneven portions 22e of the sandwiched and transporting endless bodies 22, 22 on one side of the left and right are shifted vertically. As a result, the irregularities 22e... Are formed so that the crop bodies P can be securely sandwiched, while the irregularities 22e... It can be difficult to occur.

  The lower pulleys 20 and 20 around which the nipping and conveying endless bodies 22 and 22 are wound at the conveyance start end S of the drawing and conveying apparatus 2 are supported by lower pulley support plates attached to the lower portions of the frames 24 and 24 of the drawing and conveying apparatus 2. The rotating shafts 20a, 20a are attached to be rotatable. The lower pulleys 20 and 20 are provided in a disc shape, and enter the upper and lower intermediate portions of the outer peripheral portion between the upper and lower connecting plates 22a, 22b. Ridges 20b, 20b provided so as to contact 22d ..., and further, above and below the ridges 20b, 20b, overlap above the upper connection plates 22a ... of the nipping and conveying endless bodies 22, 22 wound around. The upper flanges 20c, 20c projecting to the lower side and the lower collars 20d, 20d projecting so as to overlap the lower side of the lower connecting plate 22b, are provided. It is hard to come off from 20. At the clamping start end S, when the crop body P is clamped and conveyed rearward and upward, it receives a strong pulling resistance downward. If the rotating member around which the nipping and conveying endless bodies 22 and 22 are wound at the nipping start end S is a sprocket, the sprocket teeth do not engage the chain due to the pulling resistance, and the chain rides on the sprocket teeth and comes off. However, it is possible to avoid such a problem by forming the protrusions 20b and 20b into a disk shape as described above. Further, although the engagement with the chain is shallow, the upper flanges 20c, 20c and the lower flanges 20d, 20d are provided, so that they are not easily detached, and the pinching transport endless bodies 22, 22 are pulled downward by the pulling resistance. However, the nipping and conveying endless bodies 22 and 22 are not easily detached by the lower flange portions 20d and 20d.

  Further, on the lower side of the nipping and conveying endless bodies 22 and 22 from the lower pulleys 20 and 20, a guide that guides the nipping and conveying endless bodies 22 and 22 by engaging with the inner circumferential portion of the nipping and conveying endless bodies 22 and 22. Member 21a, 21a, 21a ... is provided. The guide members 21a, 21a, 21a,... Are made of long plate-like members, and the inner ends thereof enter between the upper and lower connecting plates 22a, 22b,. 22d... Is provided. Further, a plurality of the nipping and conveying endless bodies 22 and 22 are arranged and supported via the elastic member, and when the nipping and conveying endless bodies 22 and 22 try to move in the laterally outward direction, the elastic member The holding force of the holding and conveying endless bodies 22 and 22 is applied. As a result, the crop body P can be pinched and transported accurately, and the endless gripping and transporting endless bodies 22 and 22 sag downward due to the weight of the crop body P and the pulling resistance. 19 and the lower pulley 20 are prevented from falling off.

  Specifically, the guide members 21a, 21a, 21a... Move to the left and right outer sides via the springs 21b to the frames 24, 24 of the drawing / conveying device 2 disposed inside the circumference of the nipping and conveying endless bodies 22, 22. It is attached freely, and a clamping force is applied to the left and right clamping conveyance endless bodies 22, 22 by the elastic force of the springs 21b. Specifically, support rods 21c, 21c,... Are provided through the frames 24, 24 so as to be movable in the left-right direction, and guide members 21a, 21a, 21a,. is doing. Further, the springs 21b are attached in a state of being fitted to the outside of the left and right outer sides of the guide members 21a, 21a, 21a... Of the support rods 21c, 21c. The left and right inner ends of the springs 21b are in contact with the guide members 21a, 21a, 21a,. The spring support plates 21d are attached between the left and right outer ends of the springs 21b and the left and right inner side surfaces of the frames 24, 24 in a state where the support rods 21c, 21c are penetrated through the left and right sides. The nuts 21e, 21e ... for adjusting the left and right positions of the guide members 21a, 21a, 21a ... are attached to the ends of the support rods 21c, 21c ... located on the left and right outer sides of the frames 24, 24. It is attached to the screw part formed in Bolts 21f, 21f,... Are attached to the spring support plates 21d, so that the spacing between the left and right inner surfaces of the frames 24, 24 can be adjusted, and the elasticity of the springs 21b can be adjusted.

  The frames 24 and 24 of the drawing / conveying device 2 are attached to the vertical mounting shafts 24a and 24a whose rear ends are fixed to the transmission cases 17a and 17a so as to be rotatable left and right, and the front side is the front ends of the support frames 18 and 18. Bolts 24b, 24b that can be manually rotated with respect to the parts, and fixing parts such as nuts 24c, 24c. Therefore, by operating this fixing portion, the frames 24, 24 can be rotated left and right outwards around the mounting shafts 24a, 24a at the rear end. As a result, the left-right distance between the left and right nipping and conveying endless bodies 22 and 22 supported by the frames 24 and 24 can be widened, and a large foreign substance such as a stone is present between the left and right nipping and conveying endless bodies 22 and 22. When a situation occurs in which the driving rotation of the nipping and conveying endless bodies 22 and 22 is hindered, the foreign matters can be easily removed.

  The front part of the frame 24 on one side of the left and right sides is provided so that the fixing position with respect to the support frame 18 can be adjusted left and right, and the left and right positions of the nipping and conveying endless body 22 supported by the frame 24 are The body 22 can be easily adjusted. Further, the front portion of the left and right other frame 24 is provided so as to be fixed and unfixed at a set position with respect to the support frame 18. Accordingly, the left and right other side frames 24 can be easily rotated outward in the left and right directions, and the contaminants caught by the nipping and conveying endless bodies 22 and 22 can be easily removed. The operation of returning to the set position can be performed accurately and easily, and even if such an operation is performed, the left and right positions of the nipping and conveying endless body 22 on the left and right sides adjusted in the left and right positions are not changed.

  In addition, the frame 24 on the side that can be fixed and unfixed at the set position with respect to the support frame 18 has a state in which the frame 24 is restricted so as not to rotate left and right outward from the set position, and the restricted state is A frame rotation restricting cam 24d that can be switched to a state in which the frame 24 is allowed to rotate from the set position to the left and right outwards is provided. As a result, when the frame 24 is returned to the set position after removing the foreign matter caught in the nipping and conveying endless bodies 22 and 22, the frame 24 can be accurately and surely returned to the set position. Can be resumed. The frame rotation restricting cam 24d is rotatably attached to the frame 24, and when the frame 24 is rotated to a position where the frame 24 is set, the frame rotation restricting cam 24d hits the support frame 18 and rotates left and right. The frame 24 is forcibly rotated to the set position in the left-right inner direction, and the frame 24 is restricted from being rotated left and right outward from the set position. When the rotation restricting cam 24d is turned to a position where the frame 24 is allowed to turn left and right, the contact between the frame turning restricting cam 24d and the support frame 18 is released, and the frame 24 Is in a state where it can be rotated to the left and right. The rotation operation of the rotation restricting cam 24d can be operated by a lever 24e provided on the rotation restricting cam 24d.

  The pulling and conveying device 2 conveys the crop body P obliquely rearward and upward with respect to the aircraft, but the magnitude of the speed component in the horizontal direction behind the aircraft among the conveying speeds of the conveying device 2 obliquely rearward and upward is determined by the traveling device. 1 is set to be approximately the same as the size of the work traveling speed in the horizontal direction in front of the aircraft. With this setting, the crop body P is transported in a substantially vertical posture by the pulling and transporting device 2 without falling back and forth with respect to the field E during the work travel.

  A pair of left and right front wheels 27 and 27 as support bodies for supporting the working part W on the field E (left and right troughs V and V of the basket U) are provided on the left and right sides below the front part of the working part W. By providing the front wheels 27 and 27, the pulling and conveying device 2 moves upward with the crop body P growing on the ridge U interposed therebetween, so that the working unit W is lowered when the crop body P is extracted from the ridge U. The working part W is supported by trying to stretch the front wheels 27, 27. The front wheels 27, 27 are attached to the front shaft support members 28, 28 that are attached to a horizontal shaft 28a that is rotatably attached to the support frames 18, 18, and extend forward from the horizontal shaft. The left and right front wheels 27, 27 are provided such that their heights can be adjusted by a rotation adjusting mechanism 28b of the horizontal shaft 28a. In this example, the rotation adjusting mechanism 28b includes an arm 28c fixed to the horizontal shaft 28a, a mounting portion 28d at the rear of the machine body, a cylindrical shaft having a screw hole for connecting the arm 28c and the mounting portion 28d, and the cylindrical shaft screw. A telescopic rod 28e made of a screw shaft inserted into the hole in a screwed state, and an telescopic operation unit having an operation handle 28f for expanding and contracting the telescopic rod 28e. When the operation handle 28f is rotated, the telescopic operation is performed. The screw shaft is rotated via the pair of bevel gears in the section, and the screw shaft moves to the projecting side or the retracting side with respect to the screw cylinder, so that the telescopic rod 28e is expanded and contracted. As a result, the arm 28c rotates, the horizontal shaft 28a rotates, and the left and right front wheel support members 28, 28 attached so as to rotate integrally with the left and right ends of the horizontal shaft 28a rotate up and down. , 27 move up and down. Instead of moving up and down manually, the front wheels 27 and 27 may be moved up and down by the driving force of a driving mechanism such as a hydraulic cylinder. As described above, by configuring the front wheels 27 and 27 so as to be movable up and down, the clamping start end S of the pulling and conveying apparatus 2 can be adjusted to an appropriate height according to the height of the ridge U. The pulling work of the crop body P can be performed satisfactorily by adjusting the holding position of the crop body P by 2 to an appropriate position.

  Weed bodies 29, 29 are arranged in front of the left and right front wheels 27, 27, and the stems and leaves of the crop body P located in front of the front wheels 27, 27 are scraped, and the front wheels 27, 27 involve the crop body P. I try not to step on it. Further, since the weed bodies 29 and 29 are attached and supported by the weed body attachment members 29a and 29a that are attached so that the front end portions of the front wheel support members 28 and 28 can be turned up and down. It has a simple configuration using a support member.

  In addition, on the front side of the clamping start end S of the pulling and conveying apparatus 2, left and right grounding bodies 3 and 3 are provided for grounding on the left and right sides of the crop body P on the vine surface on which the crop body P is vegetated. Since the grounding bodies 3 and 3 are attached to the drawing / conveying device 2, the holding start end S of the drawing / conveying device 2 is moved in the vertical direction with respect to the top surface position of the drawing / conveying device 2 even when the machine body is in a front-down position. It can be supported at a set position.

  Further, the grounding bodies 3 and 3 are constituted by a warped plate body, and on the upper surface side thereof, recessed portions 3a and 3a are formed in the rear end portion of the left and right central side so as to be recessed downward, and the recessed portion 3a. , 3a is provided so that the nipping and conveying start end S of the drawing and conveying apparatus 2 enters. On the bottom surface side of the grounding bodies 3, 3, the grounding bodies 3, 3 protrude downward at the center of the left and right sides of the bottom surface side, and the surface appearing in front view of the protruding portion is inclined outward in the left-right direction. Protrusions 3b and 3b formed so as to be surfaces are provided, and when the grounding bodies 3 and 3 are brought into contact with the upper surface of the eaves and moved forward, the roots r in the ground of the crop body P are projected by the protrusions 3b and 3b. The soil is removed to bring the left and right soils to the left and right sides.

  The grounding bodies 3, 3 are connected to the support members 3 c, 3 c fixedly provided on the upper fixed portion of the clamping start end S of the pulling and conveying device 2 via the horizontal shafts 3 d, 3 d whose axis is laterally lateral. , 3 are connected to mounting portions 3e, 3e provided on the upper surface side of the grounding body 3, and the grounding bodies 3, 3 are attached to the drawing / conveying device 2 so as to be rotatable about the horizontal axes 3d, 3d. Therefore, even if the front-and-rear posture of the machine body changes, the entire bottom surfaces of the grounding bodies 3 and 3 are grounded, and the holding start end S of the drawing and conveying apparatus 2 can be favorably supported.

  Therefore, the holding start end S of the pulling and conveying apparatus 2 is supported on the upper surface of the ridge by the left and right grounding bodies 3 and 3 that are in contact with the left and right sides of the crop body P on the upper surface of the ridge on which the crop body P is vegetated. Even when the airframe is in a state of being lowered forward, the holding start end S of the drawing / conveying device 2 can be supported in the vertical setting position with respect to the top surface position, and the holding start end S of the drawing / conveying device 2 can be supported. It is possible to prevent the pulling / conveying device 2 from being excessively bitten and clogged with soil.

  Further, the grounding bodies 3 and 3 are constituted by a sled-like body, and recessed portions 3a and 3a are formed in the rear end portion on the left and right center sides, and recessed portions 3a and 3a are formed above the recessed portions 3a and 3a. Since it is provided in a state in which the sandwiching conveyance start end S enters, the lower portion of the crop body P can be sandwiched as much as possible, and the final crop B in the vicinity of the ground of the crop body P (green soybean in this example) ) Is not likely to be pinched and damaged by the pulling / conveying device 2, and the pulling / conveying device 2 does not bite the soil as much as possible even when the nipping / conveying start end S of the pulling / conveying device 2 is positioned low. Therefore, it is possible to satisfactorily carry and hold the crop body P.

  Further, a protrusion 3b formed so as to protrude downward at the center of the left and right sides of the bottom surface side of the grounding bodies 3 and 3, and to form a surface appearing in front view of the protrusion to be inclined outward in the left-right direction. 3b is provided. Therefore, when the grounding bodies 3 and 3 are brought into contact with the upper surface of the eaves and move forward, the projecting portions 3b and 3b cause a soil discharging action to bring the left and right soils of the root portion r in the ground of the crop body P to the left and right outside. Thus, the lower part of the crop body P can be held as much as possible, and the final harvested product B (green soybeans in this example) near the ground of the crop body P is less likely to be pinched and damaged by the pulling and conveying device 2. .

  The grounding bodies 3 and 3 are constituted by a warped plate, and the recesses 3a and 3a formed on the upper surface side thereof are deeper in the left and right central side and deeper in the front and rear direction and deeper in the rear side. When formed in such a shape by plastic deformation, the protrusions 3b and 3b that protrude downward on the bottom surface side thereof are surfaces in which the surface appearing in front view of the protrusion is inclined outward in the left-right direction. Formed as follows. Accordingly, the recesses 3a and 3a and the protrusions 3b and 3b can be easily formed, and the recesses 3a and 3a are formed along the arcuate portion on the lower end side of the nipping and conveying start end S of the drawing and conveying apparatus 2. It can be formed in a deeper shape toward the left and right center side, and the nipping and conveying start end S of the drawing and conveying apparatus 2 can easily enter the recesses 3a and 3a, and the soil removal action by the protrusions 3b and 3b can be favorably generated. It becomes like this.

  The left and right inner ends of the left and right grounding bodies 3 and 3 are bent at the front side toward the left and right outer sides, and the rear side extends in the front-rear direction along the left and right inner ends of the left and right grounding bodies 3 and 3. The formed crop guide bodies 4 and 4 are provided so that the stem portion of the crop body P is guided to the clamping start end S of the pulling and conveying device 2. In addition, second guide bodies 32 and 32 are provided in a rearwardly raising posture from the front portions of the crop guide bodies 4 and 4, whereby the lower side of the crop body P guided to the holding start end S of the drawing and conveying apparatus 2. The branch part and the leaf part can be conveyed to the rear upper side by the drawing / conveying device 2 so as not to be caught by the front part of the drawing / conveying device 2.

  A cradle 34 is provided below the end of conveyance of the nipping and transporting endless bodies 22, 22, and cradles 35, 35 are provided on both the left and right sides of the cradle 34 to place the crop body P in a lying posture. , 35 are disposed in a substantially horizontal posture in the front-rear direction below the conveyance end portions of the sandwiched conveyance endless bodies 22, 22, and the front-rear intermediate position of the mounting tables 35, 35 is more forward than the axle position of the rear wheels 5, 5. It is set as the structure arrange | positioned so that it may be located in. Note that the left and right mounting tables 35, 35 are provided so as to be capable of rotating upward to the inside of the machine body around a rotation fulcrum provided on the left and right inner portions thereof. Since the crop body P vegetated on the cocoon grows on the undrawn work side of the adjacent cocoon, the mounting table 35 on this side is moved to the inside of the machine body during the operation. On the other hand, since the basket adjacent to the opposite side is after the extraction work has already been performed, the mounting table 35 on this side is moved to the outside of the machine body during the operation and the crop body P is extracted from the field on the mounting table 35. Lay down in a posture. When full, the crop bodies P ... on the mounting table 35 are taken out and placed on the field.

  As described above, in the crop body pulling machine of this example, the traveling device 1 travels in the vehicle body traveling direction d, and during the traveling, the pulling and conveying device 2 moves the root portion r of the stalk of the crop body P. And the crop body P is pulled out from the field E. Therefore, the harvesting operation of extracting the crop body P such as green soybeans from the field E can be performed mechanically and continuously, and labor saving can be achieved as compared with the conventional method using human power.

  Further, the crop body puller of the present example is a pair of left and right sandwiched transport endless bodies that grip the lower portion of the crop body P while traveling and transport the crop body P upward from the field E while traveling. In the crop body drawing machine provided with the drawing and conveying device 2 provided with 22 and 22, the traveling device 1 includes front wheels 27 and 27 that are rotatable and rear wheels 5 and 5 that are driven to rotate, and an engine 6 at the rear portion. The holding case 10 includes a transmission case 7 and a steering handle 10 for walking control, and the holding and conveying endless bodies 22 and 22 of the pulling and conveying apparatus 2 are arranged such that the conveyance start end portion is disposed at a low position on the front side of the body and the conveyance end portion is viewed from the side of the body. The rear wheels 5 and 5 are disposed substantially above the upper ends of the rear wheels 5 and 5 so that the entire rear wheel is inclined upward, and a receiving base 34 is provided below the conveyance end portions of the nipping and conveying endless bodies 22 and 22. Lay the crop body P on the left and right sides of the platform 34 The mounting tables 35 and 35 are provided with a force, and the mounting tables 35 and 35 are arranged in a substantially horizontal posture in the front-rear direction below the conveyance terminal portion of the sandwiched conveyance endless bodies 22 and 22. The front and rear intermediate positions are arranged so as to be positioned in front of the axle positions of the rear wheels 5 and 5. As a result, an operator walks around the front and rear of the rear wheels 5 and 5 while working on the machine body, and takes out the crop body P discharged from the conveyance terminal portions of the nipping and conveying endless bodies 22 and 22, The work of placing on the left and right sides of 35 can be performed efficiently with a comfortable posture. Further, when the number of the extracted crop bodies P placed on the mounting table 35 increases as the work progresses, the weight on the front side of the machine body becomes heavy, and it becomes difficult to raise the front side of the machine body due to unevenness in the field. This makes it difficult for the conveyance start end portions of the nipping and conveying endless bodies 22 and 22 to be lifted, and the nipping and conveying endless bodies 22 and 22 are pulled out when the crop body P such as green soybeans having the final harvest B on the ground portion is pulled out. Therefore, it becomes difficult for the end harvested body B near the ground to be pinched by an endless body and damaged, and a better work can be performed.

  The crop body pulling machine of this example sandwiches the stalk of the traveling body 1 that causes the body to self-run and the crop body P that is vegetated on the field E during traveling, and conveys the crop body P obliquely upward on the rear side. In a crop body pulling machine provided with sandwiched transport endless bodies 22 and 22 to be pulled out from, and a soil dropping device 40 for dropping soil adhering to the root r of the crop body P transported by the sandwiched transport endless bodies 22 and 22, The earthmoving device 40 includes a rotating body 41 that rotates while contacting a soiled portion of a crop body that is transported by the sandwiched transport endless bodies 22 and 22, and a rotating shaft 43 of the rotating body 41 that has a vertical axis. The rotary body 41 is provided with a earthing action part 41a formed long along the axis of rotation at a location away from the rotation axis 43, and a connecting part 41b for connecting the earthing action part 41a to the rotation axis 43. The connecting portion 4 is provided on the upper side of the earthing action portion 41a. And b provided in the lower side of the soil down the working portion 41a has a configuration without the said connection portion.

  Therefore, in the crop body pulling machine configured as described above, the machine body is self-propelled by the traveling device 1, and the nipping and conveying endless bodies 22 and 22 sandwich the stalk portion of the crop body P vegetated in the field E during the traveling. Then, the crop body P is pulled out from the field E. While the nipping and transporting endless bodies 22 and 22 are transporting the crop body P, the rotating body 41 of the soil removal device 40 rotates while contacting the soiled portion of the crop body P and adheres to the root r of the crop body P. Drop the soil. The rotary body 41 of the earthmoving device 40 has a rotary shaft 43 whose axis is in the vertical direction, a earthing action part 41a formed long along the rotary axis at a location away from the rotary shaft 43, and the earthing device. A connection part 41b for connecting the action part 41a to the rotary shaft 43 is provided, the connection part 41b is provided on the upper side of the earthing action part 41a, and the connection part is not provided on the lower side of the earthing action part 41a. Therefore, soil, roots, weeds and the like that have entered the rotation axis side from the outer peripheral side of the soil-carrying action part 41a are likely to fall downward, and clogging of the soil, roots, weeds, etc. into the soil-carrying device is less likely to occur. It can be done well. Further, even if soil, roots, weeds, etc. are entangled with the earthing action part 41a, they can be easily removed by simply pushing down the entangled soil, roots, weeds, etc., and maintenance of the earthing device can be performed easily. .

  Furthermore, since the lower part of the earthing action part 41a is provided so as to protrude downward from the lower end part of the rotating shaft 43, soil, roots and weeds that have entered the rotation axis side from the outer periphery side of the earthing action part 41a. Etc., and the falling of the soil can be performed more satisfactorily.

  Moreover, since the earthing action part 41a is formed of a rod-shaped member, soil, roots, weeds and the like are not easily entangled with the earthing action part 41a, and the entangled earth, roots and weeds can be removed more easily. As a result, it is possible to perform the soil removal better and to perform maintenance of the soil removal device more easily. In this example, four earthing action portions 41a are provided around the rotation axis, but the number is not limited to this example.

Moreover, in this example, it is further configured as follows.
Rotating bodies 41 and 41 of the earthmoving device 40 are provided with a plurality of left and right frames 24 and 24 with rotation shafts 43 and 34 rotatably attached thereto, respectively. The left and right rotating bodies 41, 41 are connected to the rotating bodies 41, 41 from the sprockets 17d, 17d provided at the upper ends of the drive shafts 23, 23 in the left and right transmission cases 17a, 17a via the transmission chains 17e, 17e. Are transmitted to sprockets 17f and 17f provided at the upper ends of the rotary shafts 43 and 43, and the rotating bodies 41 and 41 are driven to rotate. Further, since the rotation of the earthing action portions 41a of the rotating bodies 41 and 41 is provided so as to rotate at a speed faster than the rotation speed of the endless bodies 22 and 22 of the sandwiching and conveying parts, the earthing action is favorably performed. .

  Rotating bodies 41, 41 arranged on the left and right sides below the opposed portions of the left and right sandwiched transport endless bodies 22, 22 are connected to the earthing action portions 41 of the rotating bodies 41, 41 of the left and right sandwiched transport endless bodies 22, 22, respectively. Since it arrange | positions so that it may rotate in the state which protrudes in the right-and-left opposite side of each opposing part, the earth-carrying effect | action with respect to the crop body P in conveyance is performed reliably, and a more favorable earth fall can be performed.

  Resistance members 44 and 44 are provided on the left and right opposite sides of the rotating body 41 provided on the lower side of the nipping and conveying endless body 22 on one side of the left and right sides to contact the crop body P subjected to the action of the rotating body 41 and give resistance. . Thereby, the crop body P that receives the action of the rotator 41 is prevented from moving in a direction of escaping from the rotator 41, so that the earthing action by the rotator 41 can be performed satisfactorily. In this example, the resistance members 44 and 44 are composed of bar members extending downward.

The rotating body 41 is easily mounted and maintained because the boss 41c to which the connecting portions 41b... Are fixed is easily attached to and detached from the lower end portion of the rotating shaft 43.
Moreover, the earthing action part 41a of the rotary body 41 can be changed into various forms as shown in FIG.

The side view of a crop body drawing machine. The top view of a crop body drawing machine. The side view of a working part. The top view of a working part. It is a figure which shows the clamping start end part of a drawing conveyance apparatus, (a) is a top view, (b) is front view sectional drawing. Front sectional drawing which shows the clamping conveyance endless body support structure of a drawing conveyance apparatus. The perspective view which shows the assembly | attachment structure of the rotary body of a soil dropping apparatus. The perspective view which shows Example (a)-(f) from which the rotary body of a earthmoving apparatus differs. It is a figure which shows a grounding body, (a) is a top surface side perspective view, (b) is a bottom surface side perspective view.

Explanation of symbols

1: Traveling device 2: Pulling and conveying device 3: Soil discharging device 22, 22: Nipping and conveying endless body 40: Landing device 41: Rotating body 45: Rotating shaft 41a: Landing action portion 41b: Connecting portion 43: Rotating shaft d : Aircraft traveling direction S: Clamping start end P: Crop body r: Root part of crop body B: Final harvest E: Field

Claims (3)

A traveling device 1 for self-propelling the machine body, nipping and conveying endless bodies 22 and 22 for holding the lower part of the crop body P vegetated on the field E during traveling and transporting the crop body P upward from the field E, In the crop body pulling machine provided with the earth dropping device 40 for dropping the soil adhering to the root portion r of the crop body P conveyed by the nipping and conveying endless bodies 22 and 22, the earth dropping device 40 is a nipping and conveying endless body. 22 and 22, a rotating body 41 that rotates while being in contact with the soiled portion of the crop body P conveyed by the motor 22, 22, and a rotating shaft 43 of the rotating body 41 whose axis is in the vertical direction. An earthing action part 41a formed long along the rotational axis at a location away from the shaft 43 and a connecting part 41b for connecting the earthing action part 41a to the rotation shaft 43 are provided, and an upper part of the earthing action part 41a. The connecting part 41b is provided on the side, and the earthing action part 4 Crops withdrawal machine, characterized in that the structure without the said connection portion to the lower side of a. The crop body drawing machine according to claim 1, wherein a lower portion of the earthing action portion (41a) is provided so as to protrude downward from a lower end portion of the rotating shaft (43). The crop body pulling machine according to claim 1 or 2, wherein the earthing action part (41a) is formed of a rod-shaped member.

Images