JP2021000026A - Crop separation device - Google Patents

Abstract

To simply separate cops.SOLUTION: A crop separation device includes a separator having: a loading unit for loading crops; a conveyance path for conveying the crops; a pair of separation devices arranged at the side of the conveyance path and gripping and separating the crops; and an ejection unit for ejecting the crops separated by the separation device. Each separation device of the pair of separation devices has an annular separation strip for conveying the crops from the loading unit to the ejection unit. The separation strip of one separation device of the pair of separation devices has protrusions or recesses formed on an outer circumferential surface. The separation strip of the other separation device of the pair of separation devices has a flat outer circumferential surface.SELECTED DRAWING: Figure 1

Description

The present invention relates to a crop separation device that separates crops such as harvested products.

Conventionally, a crop harvester disclosed in Patent Document 1 is known.
The crop harvester disclosed in Patent Document 1 is arranged on the side of a digging transport device for digging and transporting crops from a field, a transport path for transporting crops from the digging transport device, and a transport path. Moreover, it is provided with a pair of separating devices for sandwiching and separating the crop, and a separating machine having a discharging unit for discharging the crop separated by the separating device.

Japanese Unexamined Patent Publication No. 2012-175951

In the crop harvester of Patent Document 1, the crops in the field can be harvested by digging up with a transport device, and the crops (harvested products) harvested by the separation device can be separated. However, in the crop harvester of Patent Document 1, since the pair of separating devices separates the crop only by sandwiching the crop, it may not be possible to sufficiently separate the crop depending on the size and shape of the crop.

The present invention has been made to solve such a problem of the prior art, and an object of the present invention is to provide a crop separating device capable of easily separating crops.

The crop separation device according to one aspect of the present invention is a pair of a loading section into which crops are loaded, a transport path through which the crops are transported, and a pair of transport paths arranged on the side of the transport path and sandwiching and separating the crops. A separator having a separating device and a discharging section for discharging the crops separated by the separating device is provided, and each separating device of the pair of separating devices has an annular separation zone for transporting the crop from the input section to the discharging section. The separation band of one of the pair of separation devices has a convex portion or a concave portion formed on the outer peripheral surface, and the separation band of the other separation device of the pair of separation devices is formed. The outer peripheral surface is flat.

Also, the median strip of one separator moves faster than the median strip of the other separator.
Further, the convex or concave portion of the separation band of one of the separation devices extends downward from the upper end in the direction opposite to the moving direction of the separation band.
Further, the convex or concave portion of the separation band of one separation device extends downward from the upper end and upward from the lower end in the direction opposite to the moving direction of the separation band, and is the vertical center line of the separation band of one separation device. It has a substantially V-shape extending in the direction approaching.

Further, the separation band of one separation device has a higher hardness than the separation band of the other separation device.
Further, the distance between the separation band of one separation device and the separation band of the other separation device becomes narrower in the transport direction of the transport path.
Further, the separator has a pinching force applying unit that applies a pinching force to the pair of separating devices, and the pinching force applying unit can adjust the pinching force.

Further, the input section is arranged at a position higher than the discharge section.
In addition, it has an input shaft in which power is input from the direction intersecting the transport direction of the crop, and a transmission device that transmits the power input to the input shaft to the separation device, and a separator and a transmission device are installed. It is equipped with a stand.

According to the above-mentioned crop separation device, the input crop can be easily separated.

It is a perspective view which looked at the crop separator from the right front. It is a perspective view which looked at the crop separator from the left rear. It is a left side view of a crop separator. It is a front view of the crop separation device. It is a top view of the crop separator. It is a perspective view which looked at the installation stand from the right front. It is a perspective view which looked at the installation stand from the left front. It is the schematic which shows the separation zone, the input part, the transport path, the discharge part, and a transmission device. It is a 1st schematic diagram which shows the separation apparatus. It is a 2nd schematic diagram which shows the separation apparatus. It is the first schematic diagram which shows the positional relationship of the 1st median strip, the 2nd median strip, and a crop. It is a 2nd schematic which shows the positional relationship of the 1st median strip, the 2nd median strip, and a crop. It is a schematic diagram which shows the 1st median strip and the 2nd median strip. It is a schematic diagram which shows the 1st median strip and the 2nd median strip in the 1st modification. It is a schematic diagram which shows the 1st median strip and the 2nd median strip in the 2nd modification. It is a left side view which showed the tractor which connected the crop separation device and the crop separation device.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 10 is a diagram showing a working machine 1 provided with a crop separating device 25 according to an embodiment of the present invention. The work machine 1 includes a traveling vehicle 2 and a crop separation device 25. The type of the traveling vehicle 2 is not limited, but in the case of the present embodiment, the traveling vehicle 2 is a tractor. As shown in FIG. 10, the tractor (traveling vehicle) 2 includes a driver's seat 5, a vehicle body 3, a traveling device 4, and a connecting device 14. In the embodiment of the present invention, the front side (left side of FIG. 10) of the worker seated in the driver's seat 5 of the traveling vehicle 2 is the front, the rear side of the worker (right side of FIG. 10) is the rear, and the left side of the worker. (The front side of FIG. 10) will be described as the left side, and the right side of the operator (the back side of FIG. 10) will be described as the right side. Further, the horizontal direction, which is a direction orthogonal to the front and back, will be described as the width direction. Arrows A1 in FIGS. 1 to 3 and 5 to 10 indicate the front, arrow A2 indicates the rear, and arrows B1 in FIGS. 1, 2 and 4 to 9 indicate the left side. Arrow B2 points to the right.

As shown in FIG. 10, the vehicle body 3 has a vehicle body frame 10, a clutch housing 11, and a transmission case 12. The vehicle body frame 10 extends in the front-rear direction of the vehicle body 3. The clutch housing 11 and the transmission case 12 are connected in the front-rear direction. Specifically, the clutch housing 11 is provided at the rear portion of the vehicle body 3 and houses the clutch. The transmission case 12 is connected to the rear portion of the clutch housing 11 and houses a transmission (not shown), a rear wheel differential (not shown), and the like. Further, the traveling vehicle 2 includes a PTO shaft 13 that transmits power from the engine 8 that drives the traveling vehicle 2. The PTO shaft 13 projects rearward from the rear portion of the traveling vehicle 2.

As shown in FIG. 10, the traveling device 4 has a front wheel 4A provided at the front portion of the vehicle body 3 and a rear wheel 4B provided at the rear portion of the vehicle body 3. The front wheel 4A is supported by the vehicle body frame 10. The rear wheel 4B is supported by the output shaft of the rear wheel differential. The traveling device 4 may be a crawler type device.
As shown in FIG. 10, a driver's seat 5 and a control device 6 are provided at the rear of the vehicle body 3. The control device 6 is installed around the driver's seat 5, and a machine, a device, an instrument, a member, or the like (for example, the traveling device 4) equipped on the traveling vehicle 2 by an operator (operator) seated in the driver's seat 5 is provided. Includes parts where devices, members, etc. related to the operation of the crop separation device 25, etc.) are gathered. The control device 6 includes at least a steering device composed of steering and the like.

As shown in FIG. 10, the connecting device 14 is a device for connecting a working device such as a crop separating device 25 to the rear part of the traveling vehicle 2. The connecting device 14 is connected to the mission case 12. In the present embodiment, the connecting device 14 is a three-point link mechanism. The three-point link mechanism 14 has a top link 15 and a lower link 16. The front end of the top link 15 is pivotally supported on the upper part of the mission case 12. A pair of lower links 16 are provided in the width direction. Specifically, the front end of the lower link 16 is pivotally supported in the lower part of the mission case 12.

As shown in FIG. 10, a joint 17 capable of connecting the crop separation device 25 is provided at the rear end of the top link 15 and the rear end of the lower link 16. Therefore, the crop separation device 25 is connected to the traveling vehicle 2 via the coupling device 14.
Hereinafter, the crop separation device 25 will be described in detail. As shown in FIGS. 1 to 5, and 10, the crop separation device 25 includes an installation table 30, a transmission device 60, and a separator 70. The installation table 30 supports the transmission device 60 and the separator 70. In other words, the installation table 30 installs the transmission device 60 and the separator 70. The installation base 30 has a frame 31, a connecting portion 45, and support legs 55.

As shown in FIGS. 1 to 4, 6 and 7, the frame 31 constitutes the upper part of the installation base 30. More specifically, as shown in FIGS. 6 and 7, the frame 31 includes a front frame 32, a left frame 33, a rear frame 34, a right frame 35, a plurality of columns 36, and a first erection frame. It has 39A, a second erection frame 39B, a first support portion 40A, a second support portion 40B, a holding bracket 41, a first support plate 42A, and a second support plate 42B.

As shown in FIGS. 5, 6 and 7, the front frame 32 constitutes the front portion of the frame 31. The front frame 32 has a first frame 32a, a second frame 32b, and a third frame 32c. The first frame 32a, the second frame 32b, and the third frame 32c are square timbers made of, for example, a metal material. The first frame 32a is arranged so as to extend in the width direction. As shown in FIG. 5, the second frame 32b is connected to the right side of the first frame 32a and projects forward from the first frame 32a. That is, the front end portion of the second frame 32b is located in front of the front side of the first frame 32a. The second frame 32b is located to the left of the right end of the first frame 32a, and the right end of the first frame 32a projects to the right of the right end of the second frame 32b. The third frame 32c is connected to the right end portion of the first frame 32a, and is arranged so as to extend upward to the right from the first frame 32a.

As shown in FIGS. 5, 6 and 7, the left frame 33 constitutes the left portion of the frame 31. The left frame 33 has a fourth frame 33a. The fourth frame 33a is, for example, a square timber made of a metal material. The fourth frame 33a is arranged so as to extend in the front-rear direction. As shown in FIGS. 5 and 7, the front portion of the fourth frame 33a (hereinafter referred to as the mounting portion 33a1) is connected to the left end portion of the first frame 32a. The mounting portion 33a1 is on the front side of the fourth frame 33a and is located between the front end portion of the fourth frame 33a and the middle portion in the front-rear direction of the fourth frame 33a. That is, the front end portion of the fourth frame 33a is located in front of the front side of the first frame 32a, and the front end portion of the fourth frame 33a protrudes forward of the front side of the first frame 32a. The front end portion of the fourth frame 33a is flush with the front end portion of the second frame 32b, and is located so as to be separated from each other in the width direction.

As shown in FIGS. 6 and 7, the rear frame 34 constitutes the rear portion of the frame 31. The rear frame 34 has a fifth frame 34a and a sixth frame 34b. The fifth frame 34a and the sixth frame 34b are square timbers made of, for example, a metal material. The fifth frame 34a is arranged so as to extend in the width direction. The left end of the fifth frame 34a is connected to the rear end of the fourth frame 33a. The sixth frame 34b is connected to the right end portion of the fifth frame 34a, and is arranged so as to extend upward to the right from the fifth frame 34a.

As shown in FIGS. 6 and 7, the right frame 35 constitutes the right portion of the frame 31. The right frame 35 has a seventh frame 35a that is arranged so as to extend in the front-rear direction. The seventh frame 35a is, for example, a square timber made of a metal material. The front end of the seventh frame 35a is connected to the middle part of the third frame 32c, and the rear end of the seventh frame 35a is connected to the middle part of the sixth frame 34b. The seventh frame 35a is located above the first frame 32a, the second frame 32b, the fourth frame 33a, and the fifth frame 34a.

As shown in FIGS. 6 and 7, the plurality of columns 36 are erected above the front frame 32, the left frame 33, and the rear frame 34. Specifically, the plurality of columns 36 include a pair of front columns 37 and a pair of rear columns 38. The pair of front columns 37 are arranged on the upper side of the front frame 32 and the left frame 33 so as to be separated from each other in the width direction, and are arranged in the width direction with the first front column 37a arranged on one side (left side) in the width direction. It includes a second front support column 37b arranged on the other side (right side). As shown in FIG. 7, the first front support column 37a is arranged above the mounting portion 33a1 of the fourth frame 33a, and the second front support column 37b is arranged above the central portion in the width direction of the first frame 32a. ing. The first front strut 37a extends in the vertical direction, and the second front strut 37b has a lower portion extending in the vertical direction and an upper portion bent in one width direction (right side).

As shown in FIGS. 6 and 7, the pair of rear columns 38 are arranged apart from each other in the width direction on the upper side of the fifth frame 34a, and are arranged on one side (left side) in the width direction. It includes a support column 38a and a second rear support column 38b arranged on the other side (right side) in the width direction. The first rear strut 38a is arranged on the upper side of the left end portion of the fifth frame 34a, and is arranged so as to be separated from the first front strut 37a in the front-rear direction. The second rear support column 38b is arranged above the central portion of the fifth frame 34a in the width direction, and is arranged so as to be separated from the second front support column 37b in the front-rear direction. The first rear strut 38a extends in the vertical direction, and the second rear strut 38b has a lower portion extending in the vertical direction and an upper portion bent in one width direction (right side).

As shown in FIGS. 6 and 7, in the first erection frame 39A and the second erection frame 39B, one of the plurality of struts 36 and the other struts 36 other than the one struts 36 are included. It is a member that connects. The first erection frame 39A connects the first front support column 37a and the first rear support column 38a. The front end portion of the first erection frame 39A is fixed to the middle portion in the vertical direction of the first front support column 37a. On the other hand, the rear end portion of the first erection frame 39A is fixed to the middle portion in the vertical direction of the first rear support column 38a.

As shown in FIGS. 6 and 7, the second erection frame 39B connects the second front support column 37b and the second rear support column 38b. The front end portion of the second erection frame 39B is fixed to the upper portion of the second front support column 37b. On the other hand, the rear end portion of the second erection frame 39B is fixed to the upper portion of the second rear support column 38b.
As shown in FIGS. 6 and 7, the first support portion 40A is a member attached to the upper part of the fourth frame 33a, and extends from the rear end portion of the fourth frame 33a to the attachment portion 33a1. There is. The first support portion 40A is formed by bending a thick steel plate, and is bent from the upper portion of the fourth frame 33a toward the upper right.

As shown in FIGS. 6 and 7, the second support portion 40B is a member provided over the front frame 32 and the rear frame 34. The second support portion 40B is provided over the lower side of the central portion in the width direction of the first frame 32a and the lower side of the central portion in the width direction of the fifth frame 34a. The second support portion 40B is formed by bending a thick steel plate, and is bent from the lower side of the first frame 32a and the fifth frame 34a to the upper right. As shown in FIG. 4, the upper end portion of the first support portion 40A is located below the upper end portion of the second support portion 40B.

As shown in FIGS. 1, 6 and 7, the holding bracket 41 is attached and fixed at the base end side in the middle of the first erection frame 39A in the front-rear direction. For example, by bending a thick steel plate, the holding bracket 41 is fixed. It is formed. The holding bracket 41 extends downward from the other side (right side) in the width direction of the first erection frame 39A, bends in the middle portion, and the tip side extends to one side (left side) in the width direction in an inverted L shape in front view. It is a member of the shape. As shown in FIG. 7, the holding bracket 41 is formed with a slit 41a extending in the width direction on the tip end side. The slit 41a is a notch extending from the tip end side of the holding bracket 41 to the other side (right side) in the width direction.

As shown in FIGS. 6 and 7, the first support plate 42A and the second support plate 42B are plate-shaped members arranged so that the plate surfaces face in the front-rear direction, and are separated from each other in the front-rear direction and arranged facing each other. Has been done. The left end portion of the first support plate 42A is connected to the front portion of the first front strut 37a, and the right end portion of the first support plate 42A is connected to the front portion of the second front strut 37b. The left end of the second support plate 42B is connected to the rear portion of the first rear strut 38a, and the right end portion of the second support plate 42B is connected to the rear portion of the second rear strut 38b.

As shown in FIG. 10, the connecting portion 45 is connected to the connecting device 14 of the traveling vehicle 2. As shown in FIGS. 5, 6 and 7, the connecting portion 45 is connected to the front frame 32 and the left frame 33, specifically, the front end portion of the second frame 32b and the front end portion of the fourth frame 33a. The connecting portion 45 includes an erection portion 46, a lower connecting tool 47, and an upper connecting tool 48. The erection portion 46 is arranged so as to extend in the width direction, and connects the front end portion of the second frame 32b and the front end portion of the fourth frame 33a. The erection portion 46 is, for example, a square timber made of a metal material.

The lower connecting tool 47 is a portion that connects to the joint 17 of the lower link 16 of the connecting device 14 of the traveling vehicle 2. As shown in FIGS. 5, 6 and 7, the lower connecting tool 47 is arranged at the left end portion and the right end portion of the erection portion 46 so as to be separated from each other in the width direction, and extends forward from the erection portion 46. ing. The lower connector 47 is, for example, a thick steel plate, and is arranged so that the plate surface faces the width direction.

The upper connecting tool 48 is a portion that connects to the joint 17 of the top link 15 of the connecting device 14. As shown in FIGS. 6 and 7, the upper connecting tool 48 is provided on the upper rear side of the lower connecting tool 47. The upper connecting tool 48 has a vertical member 48a and a horizontal member 48b. The vertical member 48a is attached to face the upper part of the lower connecting tool 47 on the left side and the upper part of the lower connecting tool 47 on the right side. The horizontal member 48b is arranged so as to extend in the width direction, and connects the middle part of the vertical member 48a on the left side and the middle part of the vertical member 48a of the vertical member 48a on the right side. Further, as shown in FIG. 7, the lower side of the left vertical member 48a is connected to the first front column 37a via a reinforcing member 49. The reinforcing member 49 is a long member that extends from the lower side of the vertical member 48a to the rear and upper side and is connected to the middle portion of the first front support column 37a in the vertical direction.

As shown in FIGS. 6 and 7, a pair of support legs 55 are provided on the front side and the rear side of the frame 31 in the width direction, respectively. The support leg 55 is a rod-shaped stand extending in the vertical direction. Specifically, the support leg 55 includes a front leg 56 provided on the front side of the frame 31 and a rear leg 57 provided on the rear side of the frame 31. The front legs 56 are provided on the front portion of the second frame 32b and the front portion of the fourth frame 33a, respectively. On the other hand, the rear legs 57 are provided at the left end portion and the right end portion of the fifth frame 34a, respectively. A foot portion extending in the horizontal direction is provided at the lower end portion of the support leg 55. The support legs 55 may be detachably provided on the frame 31 as long as the crop separation device 25 can be supported on an installation surface such as a field or a work place, and the shapes and arrangements of the front legs 56 and the rear legs 57 may be provided. Etc. are not limited to the above configuration.

As shown in FIGS. 1 to 5, the transmission device 60 is provided on the front side of the frame 31. Specifically, it is provided on the upper portion of the connecting portion 45 and the front portion of the first support plate 42A. As shown in FIG. 8, the transmission device 60 includes a support bracket 61, an input shaft 62, a first pulley 63, a second pulley 64, a first transmission band 65, a third pulley 66, a fourth pulley 67, and a second pulley. It has a transmission band 68. As shown in FIGS. 1, 4, 6, 7, and the like, the support bracket 61 is provided above the erection portion 46 and rotatably supports the input shaft 62. The support bracket 61 is formed by bending a thick steel plate, and is arranged in the middle of the erection portion 46 in the front-rear direction.

The input shaft 62 is rotatably supported by the support bracket 61, and as shown in FIG. 10, power is input from the PTO shaft 13 of the traveling vehicle 2. Specifically, the input shaft 62 is arranged so as to extend in the front-rear direction, and the tip of the input shaft 62 projects forward from the front portion of the erection portion 46. The input shaft 62 is connected to the PTO shaft 13 via a universal joint (not shown), and power is input from the PTO shaft 13 of the traveling vehicle 2. That is, power is input to the input shaft 62 from the direction opposite to the traveling direction of the traveling vehicle 2. In the present embodiment, the input shaft 62 receives power from the PTO shaft 13 provided at the rear portion of the traveling vehicle 2, but when the PTO shaft 13 is provided at the front portion of the traveling vehicle 2. May be configured such that power is input from the traveling direction of the traveling vehicle 2.

Grooves are formed on the outer periphery of the first pulley 63, the second pulley 64, the third pulley 66, and the fourth pulley 67 along the circumferential direction, and an endless belt is wound around the grooves. , Transmits power through the belt. As shown in FIG. 8, the rotation axes of the first pulley 63, the second pulley 64, the third pulley 66, and the fourth pulley 67 are arranged in parallel with each other. As shown in FIGS. 1 and 3, the first pulley 63 is provided at the rear end of the input shaft 62, and is integrally rotatably connected to the input shaft 62. The second pulley 64 is rotatably provided on the first support plate 42A and is arranged on the upper right side of the first pulley 63. As shown in FIG. 8, the third pulley 66 is arranged at the rear part of the second pulley 64, and is integrally rotatably connected to the second pulley 64. As shown in FIG. 4, the fourth pulley 67 is rotatably provided on the first support plate 42A and is arranged on the upper left side of the third pulley 66.

As shown in FIGS. 1 and 4, the first transmission band 65 and the second transmission band 68 are band-shaped bodies formed in a loop shape (endless shape), and are made of an elastic body such as rubber, for example. .. As shown in FIGS. 1, 3, 8 and the like, the first transmission band 65 is composed of a plurality of (two) belts, and the plurality of belts are attached to the first pulley 63 and the second pulley 64. It is wrapped (crossed). As a result, the second pulley 64 is driven by the rotation of the first pulley 63. As shown in FIGS. 3 and 8, the second transmission band 68 is composed of a plurality of (two) belts, and is wound around (crossed over) the third pulley 66 and the fourth pulley 67. There is). As a result, the fourth pulley 67 follows the rotation of the third pulley 66. That is, the power input from the PTO shaft 13 of the traveling vehicle 2 to the input shaft 62 via the universal joint is transmitted from the first pulley 63 to the second pulley 64 via the first transmission band 65. Further, the power transmitted to the second pulley 64 is transmitted to the fourth pulley 67 via the second transmission band 68.

The transmission device 60 only needs to be able to transmit the power input to the input shaft 62 to the separator 70. For example, the first pulley 63 is provided on a shaft different from the input shaft 62, and gears and the like are changed. The configuration may be such that power is transmitted from the input shaft 62 via the device, and the configuration is not limited to the above configuration. Further, in the present embodiment, the first transmission band 65 and the second transmission band 68 are composed of two belts, but the first transmission band 65 and the second transmission band 68 are one. There may be three or any number.

The separator 70 is a machine that separates the crop P while transporting the introduced crop P in the transport direction (from one side to the other side in the width direction). Specifically, in the present embodiment, the separator 70 separates the introduced crops while transporting them from the left side to the right side. That is, as shown in FIG. 8, the input shaft 62 arranged so as to face the front-rear direction receives power from a direction intersecting the transport direction of the crop P. As shown in FIGS. 1 to 3 and 10, the separator 70 is provided on the upper part of the installation table 30, and is installed by the installation table 30. As shown in FIG. 4 and the like, the separator 70 includes a cover 71, a transport base 72, a first connecting rod 73, a plurality of vertical rails 74, a second connecting rod 75, a guide plate 76, and a guide portion. 77 and has. The transport table 72, the first connecting rod 73, the plurality of vertical rails 74, the second connecting rod 75, the guide plate 76, and the guide portion 77 form a path (transport path 81) through which the separated crop P passes.

As shown in FIG. 5, the cover 71 is arranged at the left end portion of the separator 70, and is attached to the first front support column 37a and the first front support column 37a. The cover 71 is formed with an opening 71a in which the crop P can be put into the separator 70, and the opening 71a penetrates in the width direction to communicate the space on the right side and the space on the left side of the cover 71. doing.
As shown in FIGS. 2, 4, 5, and 8, the transport table 72 is arranged at the left end of the separator 70. The transport table 72 is a plate-shaped member whose plate surface is arranged so as to face the vertical direction, and the crop P to be put into the separator 70 can be placed on the upper surface thereof. Specifically, the transport table 72 is a plate-shaped member that extends to the right from the lower end of the opening 71a of the cover 71 and has a length in the front-rear direction and a length in the width direction longer than the length in the vertical direction. .. The length of the transport table 72 in the front-rear direction is substantially rectangular, which is longer than the length in the width direction. The right side of the transport table 72 is connected to the first connecting rod 73.

As shown in FIGS. 3, 5, and 8, the first connecting rod 73 is arranged so as to extend in the front-rear direction. Specifically, the first connecting rod 73 is located in the opening 71a formed in the cover 71. One side (left side) in the width direction of the first connecting rod 73 is connected to the transport table 72, and the other side (right side) in the width direction connects the left end portions of the plurality of vertical rails 74, respectively.
As shown in FIGS. 3, 5, and 8, the plurality of vertical bars 74 are rod members that are arranged so as to extend in the width direction. Further, as shown in FIG. 4, the plurality of vertical rails 74 are arranged so as to be inclined from the upper left to the lower right. The left side of the plurality of vertical rails 74 is mounted on the upper end of the first support portion 40A, and the right side of the plurality of vertical rails 74 is mounted on the upper end of the second support portion 40B. The plurality of vertical rails 74 are separated from each other in the front-rear direction and are arranged in parallel with each other. In the present embodiment, the plurality of vertical rails 74 are composed of nine vertical rails 74, but the number of vertical rails 74 is not limited to nine as long as the crops P to be separated can be transported without dropping. , 8 or 10 or any number. Further, the plurality of vertical bars 74 may be arranged so as to be inclined from the upper left to the lower right, and the fixing method thereof is not limited to the above configuration.

As shown in FIGS. 4 and 8, the second connecting rod 75 is arranged at the right end portion of the separator 70, and is arranged so as to extend in the front-rear direction. The second connecting rod 75 connects the right end portions of the plurality of vertical rails 74, respectively.
As shown in FIGS. 1, 4, 5, and 8, the guide plate 76 is arranged on the other side (right side) of the second connecting rod 75 in the width direction, and is conveyed to the second connecting rod 75. Guide the crop P in the transport direction. A pair of guide plates 76 are provided at the center of the seventh frame 35a in the front-rear direction. The guide plates 76 are arranged so as to be separated from each other in the front-rear direction, and the crop P is conveyed by passing the crop P between the guide plate 76 on one side (left side) and the guide plate 76 on the other side (right side). Guide in the direction. As shown in FIG. 4, the guide plate 76 includes a plate portion 76a that is composed of a flexible resin or other member and guides the crop P, and a holding portion 76b that holds the plate portion 76a in the seventh frame 35a. ,have. The holding portion 76b extends to the right from the seventh frame 35a and holds the upper end portion of the plate portion 76a.

The guide unit 77 guides the crop P transported to the second connecting rod 75 downward. As shown in FIGS. 1, 5, and 8, a pair of guide plates 76 are provided at the center of the second connecting rod 75 in the front-rear direction, and are arranged so as to be separated from each other in the front-rear direction. As shown in FIG. 4, the pair of guide portions 77 are arranged so as to incline downward to the right from the second connecting rod 75, and the crop P is passed through the upper portion to guide the crop P downward.

As shown in FIG. 4, the separator 70 includes a loading section 80, a transport path 81, a discharging section 82, a transmission section 90, a pair of separating devices 100, and a support frame 106. The input unit 80 is a portion into which the crop P separated by the separation device 100 is input. As shown in FIG. 8, the loading portion 80 is a portion including, for example, a transport table 72, a first connecting rod 73, and a part of the start end side (left end side) of the plurality of vertical rails 74.

The transport path 81 is a portion where the crop P loaded into the loading unit 80 is transported. As shown in FIG. 8, the transport path 81 is at least on the downstream side of the input section 80, and in the present embodiment, it is a middle section of a plurality of vertical bars 74. As shown in FIG. 4, the transport path 81 is inclined so as to gradually move downward from the input portion 80, and in the present embodiment, the transfer path 81 is inclined from the upper left to the lower right. That is, the transport direction of the separator 70 is a direction that is inclined from the input portion 80 (upper left) toward the discharge portion 82 (lower right).

The discharge unit 82 is a portion that discharges the crop P transported by the transport path 81. In the present embodiment, as shown in FIGS. 4 and 8, the discharge unit 82 is at least downstream of the transport path 81, and is the terminal side (right end side) of the second connecting rod 75 and the plurality of vertical rails 74. It is a part including a part of the guide plate 76 and the guide portion 77. The discharge unit 82 is arranged at a position lower than that of the input unit 80. The crop P introduced into the input unit 80 passes through the transport path 81 and is discharged from the discharge unit 82.

The transmission unit 90 is a device that transmits the power input from the transmission device 60 to the pair of separation devices 100. As shown in FIGS. 1 to 5, the transmission unit 90 is arranged in the upper part of the frame 31. The transmission unit 90 includes a body 91, a first drive shaft 92, a second drive shaft 93, a speed change unit 94, a first speed change pulley 95, a second speed change pulley 96, a speed change band 97, and a tension pulley 98. And have.

The body 91 is a support that supports the first drive shaft 92, the second drive shaft 93, the transmission unit 94, the first shift pulley 95, the second shift pulley 96, the tension pulley 98, and the shift band 97. As shown in FIGS. 1, 3 and 5, the body 91 is arranged between the first support plate 42A and the second support plate 42B, and is said to be covered by a fastening member such as a bolt or a fixing means such as welding. It is attached and fixed to the first support plate 42A and the second support plate 42B.

The first drive shaft 92 is a shaft that transmits power to one (front side) separation device 100 of the pair of separation devices 100. As shown in FIG. 3, the first drive shaft 92 is arranged at the front portion of the transmission portion 90. The first drive shaft 92 is rotatably supported by the body 91.
The second drive shaft 93 is a shaft that transmits power to the other (rear side) separation device 100 of the pair of separation devices 100. As shown in FIG. 3, the second drive shaft 93 is arranged at the rear of the transmission unit 90. The second drive shaft 93 is rotatably supported by the body 91, and is arranged so as to be separated from the first drive shaft 92 in the front-rear direction.

The speed change unit 94 shifts the power input from the transmission device 60, and transmits the changed power. As shown in FIG. 8, the transmission unit 94 has a housing 94a, a first transmission shaft 94b, and a second transmission shaft 94c, and is input to the inside and the outside of the housing 94a. A plurality of gears that shift gears while transmitting the power, a shaft that supports the gears, and the like are housed. A first drive shaft 92 is integrally rotatably connected to one of the plurality of gears. The first transmission shaft 94b projects forward from the housing 94a and is integrally rotatably connected to the fourth pulley 67. The second transmission shaft 94c is rotatably connected to the other gear among the plurality of gears, and protrudes upward to the right from the housing 94a.

The transmission unit 94 receives power from the first transmission shaft 94b via the fourth pulley 67, and shifts the input power. Further, the speed change unit 94 transmits the changed power to the first drive shaft 92 and the second transmission shaft 94c. The transmission unit 94 rotates the first drive shaft 92 and the second transmission shaft 94c in opposite directions to each other. Specifically, for example, in a plan view, the transmission unit 94 rotates the first drive shaft 92 counterclockwise and the second transmission shaft 94c clockwise by the power input to the first transmission shaft 94b. Let me. The speed change unit 94 only needs to be able to change the power input from the transmission device 60, and its configuration and structure are not limited to the above configuration.

Grooves are formed on the outer periphery of the first speed change pulley 95 and the second speed change pulley 96 along the circumferential direction, and an endless belt is wound around the grooves to transmit power via the belt. To do. As shown in FIGS. 3 and 8, the first speed change pulley 95 is integrally rotatably connected to the upper portion of the second transmission shaft 94c. The second speed change pulley 96 is integrally rotatably connected to the upper part of the second drive shaft 93. Further, the outer diameter L2 of the groove formed in the second speed change pulley 96 is larger than the outer diameter L1 of the groove formed in the first speed change pulley 95.

The shift band 97 is a band-shaped body formed in a loop shape (endless shape), and is made of an elastic body such as rubber, for example. As shown in FIGS. 1 to 5 and 8, the shift band 97 is wound (crossed) around the first shift pulley 95 and the second shift pulley 96. As a result, the second speed change pulley 96 is driven by the rotation of the first speed change pulley 95 by the speed change band 97. That is, the power shifted by the speed change unit 94 is transmitted from the second transmission shaft 94c to the second drive shaft 93 via the first speed change pulley 95, the speed change band 97, and the second speed change pulley 96. In a plan view, the speed change unit 94 rotates the first drive shaft 92 counterclockwise and the second transmission shaft 94c clockwise by the power input to the first transmission shaft 94b, and causes the second drive shaft 94. Since the second speed change pulley 96 to which the 93 is connected follows the rotation of the first speed change pulley 95 connected to the second transmission shaft 94c, the second drive shaft 93 rotates clockwise. Further, since the outer diameter of the groove formed in the second speed change pulley 96 is larger than the outer diameter of the groove formed in the first speed change pulley 95, the second speed change pulley 96 is smaller than the first speed change pulley 95. The rotation speed of the first drive shaft 92 per predetermined time is faster than the rotation speed of the second drive shaft 93 per predetermined time.

As shown in FIGS. 1, 8 and the like, the tension pulley 98 is arranged between the first speed change pulley 95 and the second speed change pulley 96, and applies a predetermined tension to the speed change band 97. The tension pulley 98 is rotatably provided on the body 91, and is arranged in parallel with the rotation shaft of the first speed change pulley 95 and the rotation axis of the second speed change pulley 96. In the present embodiment, the tension pulley 98 is arranged on the lower right side of the first speed change pulley 95 and the second speed change pulley 96, and applies tension from the inner peripheral side of the speed change band 97 toward the lower right side. In the present embodiment, the tension pulley 98 applies tension to the lower portion of the inner circumference of the shift band 97, but the tension pulley 98 is on the upper left side of the first shift pulley 95 and the second shift pulley 96. A tension may be applied to the upper portion of the inner circumference of the shift band 97 toward the upper left, and the configuration and structure thereof are not limited to the above configuration.

As shown in FIGS. 3 and 5, the pair of separation devices 100 are arranged on the sides of the transport path 81, respectively. The separation device 100 sandwiches the crop P (for example, the harvested taro) at the upper part of the transport path 81, and while transporting the crop P, separates the crop P into a commercial form (for example, if the taro is a taro). (Separate the child potato from the parent potato). As shown in FIGS. 9A and 9B, the separation device 100 includes a connecting frame 101, a driving wheel 102, a driven wheel 103, a separation band 104, and a guide portion 105.

As shown in FIGS. 8, 9A and 9B, the connecting frame 101 connects the first drive shaft 92 and the second drive shaft 93 with the trailing wheel 103. The connecting frame 101 is arranged so as to extend from the left side to the right side. Specifically, of the pair of separation devices 100, the left end portion of the connecting frame 101 of one (front side) separation device 100 is swingably supported around the axis of the first drive shaft 92, and the right end portion is supported. , The driven wheel 103 is rotatably supported. Further, of the pair of separation devices 100, the left end portion of the connecting frame 101 of the other (rear side) separation device 100 is swingably supported around the axis of the second drive shaft 93, and the right end portion is supported. , The driven wheel 103 is rotatably supported. The connecting frame 101 is inclined from the upper left to the lower right.

As shown in FIGS. 8, 9A and 9B, the drive wheels 102 are arranged below the left end of the connecting frame 101. Of the pair of separation devices 100, the drive wheel 102 of one (front side) separation device 100 is rotatably connected to the lower end of the first drive shaft 92. Further, among the pair of separation devices 100, the drive wheels 102 of the other (rear side) separation device 100 are integrally rotatably connected to the lower end of the second drive shaft 93.

As shown in FIGS. 8, 9A and 9B, the driven wheel 103 is rotatably provided below the right end of the connecting frame 101. The rotation shaft of the trailing wheel 103 is arranged in parallel with the rotation shafts of the first drive shaft 92, the second drive shaft 93, and the drive wheel 102.
As shown in FIGS. 8, 9A, 9B, and 9D, the separation band 104 is a band-shaped body (conveyor) configured in a loop shape (endless shape). The separation band 104 is wound (crossed) around the driving wheel 102 and the driven wheel 103. The separation band 104 is made of an elastic body such as rubber. Of the pair of separation devices 100, the separation band 104 (hereinafter referred to as the first separation band 104A) of one (front side) separation device 100 has a plurality of recesses or protrusions 104A1 formed on the outer peripheral surface (surface). There is. In the present embodiment, a plurality of convex portions 104A1 are formed in the first separation band 104A, and the plurality of convex portions 104A1 are spaced apart from each other in the circumferential direction in the thickness direction of the first separation zone 104A. It is protruding. Specifically, the plurality of convex portions 104A1 are arranged at intervals of a length that allows at least a part of the crop P to be accommodated. Further, the plurality of convex portions 104A1 extend from one end to the other end in the width direction of the first separation band 104A.

Explaining in detail the plurality of convex portions 104A1 formed in the first separation band 104A, as shown in FIGS. 9C, 9D, and 9E, the convex portions 104A1 have a pair of upright surfaces 104a and a connecting surface 104b. Have. The pair of upright surfaces 104a extend from a predetermined reference surface of the first median strip 104A in the thickness direction of the first median strip 104A, and extend from one end to the other end in the width direction of the first median strip 104A. There is. Of the pair of upright surfaces 104a, one upright surface 104a is arranged so as to be separated from the other upright surface 104a in the circumferential direction of the first separation band 104A.

As shown in FIG. 9E, the connecting surface 104b is a surface of the pair of upright surfaces 104a that connects one upright surface 104a and the other upright surface 104a. The connecting surface 104b extends from one end to the other end in the width direction of the first separation band 104A. The convex portion 104A1 composed of the pair of upright surfaces 104a and the connecting surface 104b has a center line C from one end and the other end in the width direction of the first separation band 104A in the direction opposite to the moving direction (conveying direction) of the first separation band 104A. It has a substantially V-shape extending in the direction approaching. That is, since the convex portion 104A1 of the first separation band 104A is formed so as to extend downward from the upper end of the first separation band 104A in the direction opposite to the movement direction (rear in the movement direction), it is sandwiched between the first separation bands 104A. A downward force (toward the bottom of the transport path 81) is applied to the crop P obtained by the convex portion 104A1. Therefore, it is possible to prevent the crop P from protruding upward from the upper end of the first median strip 104A1 during transportation.

As shown in FIGS. 8, 9A, 9B, 9C, and 9D, the separation band 104 (hereinafter referred to as the second separation band 104B) of the other (rear side) separation device 100 of the pair of separation devices 100. ) Has a flat outer peripheral surface (surface). In other words, no concave portion or convex portion is formed on the outer peripheral surface of the second separation band 104B. That is, in the separation band 104, a concave portion or a convex portion is formed on the outer peripheral surface of the first separation band 104A which is one of the separation zones 104, and the outer peripheral surface of the second separation band 104B which is the other separation band 104 is formed. , Flat. Therefore, the crop P is not easily damaged even if it is sandwiched between the pair of medians 104. Further, as shown in FIG. 9E, the length L4 in the width direction of the second median strip 104B coincides with the length L3 in the width direction of the first median strip 104A.

In the present embodiment, a substantially V-shaped convex portion 104A1 is formed on the outer peripheral surface of the first separation band 104A, but it may be a concave portion instead of a convex portion, and the shape of the convex portion 104A1 is , Not limited to a substantially V-shape. For example, as shown in FIG. 9F, the shape may extend linearly from the upper end to the lower end of the first median strip 104A1. In such a case, the convex portion 104A1 having a linear shape has a linear shape perpendicular to the upper end to the lower end of the first separation band 104A, or downwards in the direction opposite to the moving direction from the upper end of the first separation band 104A. It is preferably formed in an oblique linear shape. Alternatively, as shown in FIG. 9G, the shape of the convex portion 104A1 may be S-shaped, and the upper side of the S-shaped convex portion 104A1 faces downward in the direction opposite to the moving direction from the upper end of the separation band. Is preferably formed.

Further, the materials may be different between the first separation band 104A and the second separation band 104B. In such a case, the first median strip 104A is made of a harder material than the second median strip 104B. Further, the thickness may be different between the first median strip 104A and the second median strip 104B. In such a case, for example, the outer peripheral thickness of the first median strip 104A is made thicker than the outer peripheral thickness of the second median strip 104B. Therefore, the crop P is not easily damaged even if it is sandwiched between the pair of medians 104.

As shown in FIGS. 9A and 9B, the guide portion 105 is arranged between the connecting frame 101 and the separation band 104, and limits the deformation of the separation band 104 toward the inner circumference within a predetermined range. Specifically, the guide portion 105 has a guide fixture 105a and a guide plate 105b. The guide fixture 105a is attached to the lower side of the connecting frame 101 and fixes the guide plate 105b. The guide plate 105b is a plate-shaped member arranged so that the plate surface faces the inner peripheral surface (back surface) of the separation band 104. Specifically, of the pair of separation devices 100, the guide plate 105b of one (front side) separation device 100 is behind the connecting frame 101 and faces the inner peripheral surface on the rear side of the first separation band 104A. It is arranged to do. Of the pair of separation devices 100, the guide plate 105b of the other (rear side) separation device 100 is arranged in front of the connecting frame 101 so as to face the inner peripheral surface on the front side of the second separation band 104B. ing. The guide portion 105 is formed by bending a thick steel plate, and the left end portion and the right end portion are bent in the separation direction of the inner peripheral surface of the separation band 104 and in the approach direction on the connecting frame 101 side. ..

As shown in FIGS. 9A and 9B, the support frame 106 is a pair of separators so that the distance between the first median strip 104A and the second median strip 104B becomes narrower in the transport direction of the transport path 81. 100 is supported on the frame 31. The support frame 106 has a first holding frame 110, a second holding frame 111, and a holding force applying portion 112.
As shown in FIGS. 9A and 9B, the first sandwiching frame 110 is swingably connected to the connecting frame 101 of the separating device 100 on one side (front side) of the pair of separating devices 100. Specifically, the first sandwiching frame 110 is arranged so as to extend from the upper left to the lower right, and the left end of the first sandwiching frame 110 is the right end of the connecting frame 101 of the separating device 100 on one side (front side). And are oscillatingly connected. The swing shaft at the left end of the first holding frame 110 is arranged on the same straight line as the rotation shaft of the drive wheel 102, and is aligned with the rotation shaft of the first drive shaft 92, the second drive shaft 93, and the driven wheel 103. It is parallel.

As shown in FIGS. 9A and 9B, the second sandwiching frame 111 is rotatably connected to the connecting frame 101 of the separating device 100 on the other side (rear side) of the pair of separating devices 100. Specifically, the second sandwiching frame 111 is arranged so as to extend from the upper left to the lower right, and the left end of the second sandwiching frame 111 is the right end of the connecting frame 101 of the other (rear side) separating device 100. It is oscillatingly connected to the part. The swing shaft at the left end of the second holding frame 111 is arranged on the same straight line as the rotation shaft of the drive wheel 102, and is aligned with the rotation shaft of the first drive shaft 92, the second drive shaft 93, and the driven wheel 103. It is parallel.

The pinching force applying unit 112 is a portion that imparts a pinching force for sandwiching the crop P to the pair of separating devices 100. In the present embodiment, as shown in FIGS. 9A and 9B, the holding force applying unit 112 includes a first applying unit 113 and a second applying unit 114. The first granting portion 113 swingably supports the right end portion of the first sandwiching frame 110 and the right end portion of the second sandwiching frame 111, connects with the frame 31, and imparts a sandwiching force to the pair of separating devices 100.

Specifically, as shown in FIGS. 9A and 9B, the first granting portion 113 includes a fixing portion 113a, a shaft portion 113b, an adjusting nut 113c, a sliding portion 113d, and a granting tool 113e. doing. The fixing portion 113a is provided in the middle portion in the front-rear direction of the seventh frame 35a. The shaft portion 113b extends in the opposite direction of the transport direction, that is, from the fixed portion 113a to the upper left, and more specifically, in a direction orthogonal to the rotation axes of the first drive shaft 92, the second drive shaft 93, the driven wheel 103, and the like. Extends to. The shaft portion 113b is formed with a screw groove into which a nut can be screwed.

The sliding portion 113d is a member that swingably supports the right end portion of the first sandwiching frame 110 and the right end portion of the second sandwiching frame 111, and is slidably attached to the shaft portion 113b. The swing shaft at the right end of the first holding frame 110 and the swing shaft at the right end of the second holding frame 111 are arranged so as to be separated from each other in the front-rear direction and are arranged on the same straight line as the rotation shaft of the drive wheel 102. It is parallel to the rotation shafts of the first drive shaft 92, the second drive shaft 93, and the driven wheel 103. The adjusting nut 113c is a nut screwed into the shaft portion 113b, and in the present embodiment, a pair of nuts are screwed in order to prevent the adjusting nut 113c from loosening. The sliding portion 113d is a right end portion of the first holding frame 110 and a right end portion of the second holding frame 111 around a rotating shaft parallel to the rotating shafts of the first drive shaft 92, the second drive shaft 93, the driven wheel 103, and the like. Support. Further, a hole is formed through the first drive shaft 92, the second drive shaft 93, the driven wheel 103, and the like in a direction orthogonal to the rotation axis, and the hole is inserted into the shaft portion 113b.

The imparting tool 113e is a portion that applies a force to the sliding portion 113d so as to slide the sliding portion 113d toward the base end side (right side) of the shaft portion 113b. In the present embodiment, the granting tool 113e is a spring that is arranged between the sliding portion 113d and the adjusting nut 113c and through which the shaft portion 113b is inserted. That is, by changing the position of the adjusting nut 113c screwed into the shaft portion 113b, that is, changing the length between the fixing portion 113a and the adjusting nut 113c, and contracting or extending the spring, the imparting tool 113e can be moved. The magnitude of the force applied to the sliding portion 113d can be changed. In the present embodiment, the imparting tool 113e is a spring, but it may be a leaf spring as long as a force can be applied so as to slide the sliding portion 113d toward the base end side of the shaft portion 113b. , The configuration is not limited to the above configuration.

In the second imparting unit 114, of the pair of separating devices 100, the connecting frame 101 of the separating device 100 on one side (front side) and the connecting frame 101 of the separating device 100 on the other side (rear side) approach each other. By applying a force, a holding force is applied to the pair of separating devices 100. Specifically, as shown in FIGS. 9A and 9B, the second imparting portion 114 has a pair of contracting portions 114a and an intermediate portion 114b.

The pair of contracting portions 114a are portions for applying a force in the direction in which the connecting frames 101 approach each other, and the spring housed therein expands to contract the length in the front-rear direction to apply the force. To do. One end side of the contracted portion 114a is swingably connected to an intermediate portion in the width direction of the connecting frame 101. Specifically, of the pair of contracting portions 114a, the front end portion of one (front side) contracting portion 114a is connected to the middle portion in the width direction of one (front side) connecting frame 101. Further, of the pair of contracted portions 114a, the rear end portion of the other (rear side) contracted portion 114a is connected to the middle portion in the width direction of the other (rear side) connecting frame 101. The rotation shaft of the contracted portion 114a is parallel to the rotation shafts of the first drive shaft 92, the second drive shaft 93, the driven wheel 103, and the like.

As shown in FIGS. 9A and 9B, the intermediate portion 114b is a portion connecting the pair of contracting portions 114a, and of the pair of contracting portions 114a, the front end portion of one (front side) contracting portion 114a and the other (front end portion). The rear end portion of the contracted portion 114a (on the rear side) is connected. A sliding convex portion 114b1 projecting at least upward is formed in the intermediate portion 114b. The sliding convex portion 114b1 is slidably attached to the slit 41a formed in the holding bracket 41.

Hereinafter, the flow in which the holding force applying unit 112 applies the holding force to the pair of separating devices 100 will be described. As shown in FIG. 9A, the sliding portion 113d is applied by the granting tool 113e of the first granting portion 113 so as to slide the sliding portion 113d toward the base end side (right side) of the shaft portion 113b. Slides to the proximal end side (right side) of the shaft portion 113b. As a result, the right end portion of the first sandwiching frame 110 moves to the front side, and the connecting frame 101 of the first sandwiching frame 110 and one (front side) separating device 100 moves to the left end portion of the first sandwiching frame 110 and the connecting frame 101. The swinging shaft at the right end of the first moving frame 110 moves in a direction approaching a straight line connecting the swinging shaft at the right end of the first sandwiching frame 110 and the swinging shaft at the left end of the connecting frame 101.

Further, as shown in FIG. 9A, the right end portion of the second sandwiching frame 111 moves to the front side, and the connecting frame 101 of the second sandwiching frame 111 and the other (rear side) separating device 100 is the second sandwiching frame 111. The swing axis at the right end of the left end and the connecting frame 101 moves in a direction approaching a straight line connecting the swing axis at the right end of the second sandwiching frame 111 and the swinging axis at the left end of the connecting frame 101. .. That is, the right ends of the connecting frames 101 are close to each other, that is, one (front side) connecting frame 101 swings clockwise around the swing axis of the left end in a plan view, and the other (rear side) connecting frame 101. Swings counterclockwise around the swing axis at the left end in a plan view. Therefore, the first granting unit 113 reduces the distance between the connecting frame 101 of the separating device 100 on one side (front side) and the connecting frame 101 of the separating device 100 on the other side (rear side), so that the pair of separating devices A holding force is given to 100.

Further, in the contracted portion 114a of the second imparting portion 114, the internal spring is extended and the length in the front-rear direction is contracted. As a result, a force is applied to the middle portion in the width direction of one (front side) connecting frame 101 and the middle portion in the width direction of the other (rear side) connecting frame 101 in the direction toward the intermediate portion 114b. That is, the connecting frame 101 is applied with a force in a direction approaching each other, and one (front side) connecting frame 101 swings clockwise around the swing axis at the left end in a plan view, and the other (rear side). ), The connecting frame 101 swings counterclockwise around the swing axis at the left end in a plan view. Therefore, the second granting unit 114 reduces the distance between the connecting frame 101 of the separating device 100 on one side (front side) and the connecting frame 101 of the separating device 100 on the other side (rear side), so that the pair of separating devices A holding force is given to 100.

Hereinafter, the flow in which the separator 70 separates the crop P charged into the input unit 80 and conveys the crop P to the discharge unit 82 will be described. The power input from the PTO shaft 13 of the traveling vehicle 2 to the input shaft 62 is transmitted from the input shaft 62 to the separation device 100 via the transmission device 60. The power transmitted to the separation device 100 drives the drive wheels 102 via the transmission unit 90, the first drive shaft 92, and the second drive shaft 93. When the transmission unit 90 rotates the first drive shaft 92 and the second transmission shaft 94c in the opposite directions, the first drive shaft 92 and the second drive shaft 93 rotate in the opposite directions to each other, and the separation band 104 of the pair of separation devices 100. Also rotate in opposite directions. As a result, the crop P sandwiched between the first median strip 104A and the second median strip 104B is transported in the transport direction, that is, from the input section 80 (left side) to the discharge section 82 (right side).

When the first median strip 104A and the second median strip 104B sandwich the crop P, the pair of separation devices 100 make a transition from the state shown in FIG. 9A to the state shown in FIG. 9B. The size between the first median strip 104A and the second median strip 104B is changed according to the size. Specifically, the right end portions of the connecting frame 101 swing in the direction of separation, that is, one (front side) connecting frame 101 swings counterclockwise around the swinging axis of the left end portion in a plan view, and the other. The (rear side) connecting frame 101 swings clockwise around the swing axis at the left end in a plan view. As the connecting frame 101 swings, the first holding frame 110 and the second holding frame 111 swing, and the sliding portion 113d of the first granting portion 113 slides toward the tip end side (left side) of the shaft portion 113b. The contracted portion 114a of the second imparting portion 114 extends. As a result, the crop P is transported while suppressing the crushing of individual crops.

As shown in FIG. 9D, the outer peripheral surface of the second median strip 104B presses the crop P against the first median strip 104A, and at least a part of the crop P is one of the plurality of convex portions 104A1 of the first median strip 104A. It fits between the convex portion 104A of the above and the other convex portion 104A1. As a result, as the separation zone 104 of the pair of separation devices 100 sandwiches and conveys the crop P, the second separation zone 104B is placed between one convex portion 104A1 of the first separation zone 104A and the other convex portion 104A1. The crop P can be pressed and the crop P can be separated (for example, when the crop P is a taro, it is separated into a parent potato and a child potato). Thereby, the efficiency of separation of the crop P can be further improved. Further, the moving speed of the first separation zone 104A in which the plurality of convex portions 104A1 are formed is faster than that of the second separation zone 104B having a flat outer peripheral surface. Therefore, a rotational force is generated in the crop P, and the crop P can be separated more efficiently.

The crop separation device 25 according to one aspect of the present invention is arranged on the side of the input section 80 into which the crop P is input, the transport path 81 in which the crop P is transported, and the transport path 81, and provides the crop P. A separator 70 having a pair of separating devices 100 for sandwiching and separating and a discharging section 82 for discharging the crop P separated by the separating device 100 is provided, and the pair of separating devices 100 includes a crop P input section 80. The separation band 104A of one of the pair of separation devices 100 has a convex portion 104A1 or a concave portion formed on the outer peripheral surface of the separation band 104A which has an annular separation band 104 which is conveyed from the to the discharge portion 82. Of the pair of separation devices 100, the separation band 104B of the other separation device 100 has a flat outer peripheral surface. According to the above configuration, since the force for holding the crop P is different between the separation zone 104A of one separation device 100 and the separation zone 104B of the other separation device 100, as the crop P is sandwiched and transported, a pair is used. The separation device 100 of the above can appropriately press the crop P to separate it. In addition, the crop P is not easily damaged.

Further, the separation band 104A of one separation device 100 moves faster than the separation band 104B of the other separation device 100. According to the above configuration, the convex portion 104A1 of the separation zone 104A generates a rotational force on the crop P, and the pressing force applied to the crop P is not concentrated in one place, so that the crop P can be separated more efficiently.
Further, the convex portion 104A1 or the concave portion of the separation band 104A of one of the separation devices 100 extends downward from the upper end in the direction opposite to the moving direction of the separation band 104A. According to the above configuration, the convex portion 104A1 applies a downward force to the crop P sandwiched between the first median strip 104A. Therefore, it is possible to prevent the crop P from protruding upward from the upper end of the first median strip 104A1 during transportation.

Further, the convex portion 104A1 or the concave portion of the separation band 104A of one separation device 100 extends downward from the upper end and upward from the lower end in the direction opposite to the moving direction of the separation band 104A, and the separation band 104A of the other separation device 100. It has a substantially V-shape extending in a direction approaching the center line C in the vertical direction. According to the above configuration, the crop P can be smoothly transported.
Further, the separation band 104A of one separation device 100 has a higher hardness than the separation band 104B of the other separation device 100. According to the above configuration, the crop P can be separated while suppressing damage to the crop P.

Further, the distance between the separation band 104A of one separation device 100 and the separation band 104B of the other separation device 100 becomes narrower in the transport direction of the transport path 81. According to the above configuration, as the crop P moves in the transport direction of the transport path 81, the pinching force of the pair of separating devices 100 holding the crop P increases, so that the crop P can be separated efficiently.
Further, the separator 70 has a holding force applying unit 112 that applies a holding force to the pair of separating devices 100, and the holding force applying unit 112 can adjust the holding force. According to the above configuration, the crop separation device 25 can adjust the holding force of the pair of separation devices 100 according to the size of the crop P to be separated.

Further, the input unit 80 is arranged at a position higher than the discharge unit 82. According to the above configuration, the crop P can be input at a high position and the separated crop P can be discharged at a low position. Therefore, the work load of the worker who puts the crop P into the input unit 80 can be reduced, and the impact applied to the crop P at the time of discharge can be reduced.
Further, a transmission device 60 having an input shaft 62 in which power is input from a direction intersecting the transport direction of the crop P and transmitting the power input to the input shaft 62 to the separation device 100, a separator 70, and the separator 70. It is provided with an installation stand 30 for installing the transmission device 60. According to the above configuration, with the crop separation device 25 installed, the crop P can be input from a direction different from the direction in which power is input to the input shaft 62, and the separated crop P can be discharged. Therefore, it is possible to secure power from the outside and separate the crop P after harvesting.

Although the present invention has been described above, it should be considered that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

25 Crop separation device 30 Installation stand 60 Transmission device 62 Input shaft 70 Separator 80 Input section 81 Transport path 82 Discharge section 100 Separation device 104 Separation band 104A 1st separation band 104A1 Convex part 104B 2nd separation band 112 Holding force

Claims (9)

The input section where the crops are loaded, the transport path through which the crops are transported, a pair of separation devices arranged on the side of the transport path and sandwiching and separating the crops, and the separation device separate the crops. Equipped with a separator having a discharge section that discharges the crops
Each of the separation devices of the pair of separation devices has an annular separation zone for transporting the crop from the input section to the discharge section.
Of the pair of separation devices, the separation band of one of the separation devices has a convex portion or a concave portion formed on the outer peripheral surface.
Of the pair of separation devices, the separation zone of the other separation device is a crop separation device having a flat outer peripheral surface. The crop separation device according to claim 1, wherein the separation zone of the one separation device moves faster than the separation zone of the other separation device. The crop separation device according to claim 1 or 2, wherein the convex or concave portion of the separation band of the one separation device extends downward from the upper end in the direction opposite to the moving direction of the separation band. The convex or concave portion of the separation band of the one separation device extends downward from the upper end and upward from the lower end in the direction opposite to the moving direction of the separation band, and is the vertical center line of the separation band of the one separation device. The crop separation device according to claim 3, which has a substantially V-shape extending in a direction approaching. The crop separation device according to any one of claims 1 to 4, wherein the separation zone of the one separation device has a hardness higher than that of the separation zone of the other separation device. The distance between the separation band of the one separation device and the separation band of the other separation device is narrowed in the transport direction of the transport path according to any one of claims 1 to 5. The described crop separator. The separator has a pinching force applying portion that imparts a pinching force to the pair of separating devices.
The crop separation device according to any one of claims 1 to 6, wherein the pinching force imparting unit is capable of adjusting the pinching force. The crop separation device according to any one of claims 1 to 7, wherein the input section is arranged at a position higher than the discharge section. A transmission device having an input shaft in which power is input from a direction intersecting the transport direction of the crop and transmitting the power input to the input shaft to the separation device.
An installation stand on which the separator and the transmission device are installed,
The crop separation device according to any one of claims 1 to 8.

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