JP2020000078A - Crop harvester - Google Patents

Abstract

To improve separation performance of a fruit from a crop in a crop harvester configured to separate a fruit from a crop by making the crop pass between an upper rotor and a lower rotor that are driven to rotate.SOLUTION: A crop conveyed by a conveying body passes between an upper rotor 11 and a lower rotor 12, and the upper rotor 11 and the lower rotor 12 touch the crop. As a result, a fruit is separated from the crop. An interval change unit 41 for changing a vertical interval between the upper rotor 11 and the lower rotor 12 is provided.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a crop harvester for harvesting field crops.

  Some green soybean harvesters, which are examples of crop harvesters, have a configuration as disclosed in Patent Document 1. In Patent Literature 1, a harvesting unit that harvests crops in a field, a carrier that transports the crop harvested by the harvesting unit to the rear side while holding the stock in a sideways posture, and a crop unit that is arranged on the right side of the carrier. And a separation unit.

In Patent Literature 1, an upper rotating body that is driven to rotate around an upper axis in a direction intersecting with a transport body in a plan view and a lower axis around an upper axis below an upper axis are provided in a separation unit. And a lower rotating body that is rotationally driven.
The crop conveyed by the carrier passes between the upper rotating body and the lower rotating body, and when the upper rotating body and the lower rotating body hit the crop, the fruits are separated and collected from the crop.

JP-A-6-78620

In crops such as green soybeans, there are many crops and branches, and few crops and branches, depending on how the crops grow.
The present invention aims to improve the performance of separating fruits from crops in a crop harvester configured to separate fruits from crops by passing the crop between an upper rotating body and a lower rotating body that are driven to rotate. It is an object.

The crop harvester of the present invention comprises:
A harvesting unit for harvesting crops in the field,
A crop that is harvested by the harvesting unit, and a transport body that transports the rear side while holding the stock in a sideways posture,
A separation unit disposed on the right or left side of the carrier,
In the separation unit, an upper rotating body that is driven to rotate around an upper axis in a direction intersecting with the transport body in plan view, and around a lower axis along the upper axis below the upper axis. A lower rotating body that is driven to rotate is provided,
The crop conveyed by the carrier passes between the upper rotator and the lower rotator, and the crop is hit by the upper rotator and the lower rotator, whereby fruits are separated from the crop,
An interval changing unit for changing the vertical interval between the upper rotator and the lower rotator is provided.

According to the present invention, the vertical distance between the upper rotating body and the lower rotating body is increased or decreased based on the state of the crop, such as a state where there are many fruits and branches, and a state where there are few fruits and branches. To set an appropriate value according to the condition of the crop.
With this, it is possible to avoid a situation in which the vertical distance between the upper rotating body and the lower rotating body is too small for the crop and the fruit of the crop is damaged, and the vertical spacing between the upper rotating body and the lower rotating body for the crop is reduced. It is possible to avoid a state where the fruit is too large to separate the fruit from the crop sufficiently, thereby improving the performance of separating the fruit from the crop.

In the present invention,
The interval changing unit changes the position of a portion of the upper rotating body or the lower rotating body on the opposite side of the transport body up and down, and changes an inclination angle of the upper rotating body or the lower rotating body in a vertical direction. It is preferable to change the vertical distance by changing.

  In crops, the stem of the crop is often located only on the stem, and the top of the crop often has many fruits and branches. As a result, the vicinity of the root of the crop is often constant regardless of the growth of the crop, and the upper part of the crop may have more or less fruits and branches depending on the growth of the crop.

  In the above-described state, when the crop origin is held by the transporter and the crop is transported in the sideways posture, the upper portion of the crop is positioned at the opposite side of the transporter in the upper rotating body and the lower rotating body. Will do.

  ADVANTAGE OF THE INVENTION According to this invention, the up-down space | interval of the part opposite to the conveyance body in an upper rotating body and a lower rotating body can be changed with high precision. Thereby, in the vertical interval between the upper rotating body and the lower rotating body, the upper and lower portions of the portion corresponding to the upper part of the crop with many fruits and branches (the portion on the opposite side of the transporting body in the upper rotating body and the lower rotating body). By changing the interval with high accuracy, the performance of separating fruits from crops can be improved.

In the present invention,
On the opposite wall portion of the transporting body in the separation unit, a portion of the upper rotating body and the lower rotating body on the opposite side of the transporting body is rotatably supported,
It is preferable that the interval changing unit is provided on a wall of the separation unit on the opposite side of the transport body.

  According to the present invention, by providing the interval changing section on the opposite wall of the transporting body in the separation section, the wall on the opposite side of the transporting body in the separating section can also be used as a support member of the interval changing section. This is advantageous in terms of simplifying the structure.

In the present invention,
A operable cover is provided at a closed position that covers the upper side of the separation unit and an open position that opens the upper side of the separation unit,
The interval changing unit changes the vertical interval by changing the position of the upper rotating body on the opposite side of the transport body up and down, and changing the inclination angle of the upper rotating body in the vertical direction. Then, it is preferable.

  According to the present invention, a cover for covering the upper side of the separation unit is provided, and by operating the cover to the open position, maintenance work inside the separation unit can be easily performed from the upper side of the separation unit. Can be improved.

  When changing the vertical interval between the upper rotating body and the lower rotating body, according to the present invention, since the position of the portion of the upper rotating body on the opposite side of the transport body is changed up and down, the spacing changing section is located at the separating section. It is located at a relatively high position. Thereby, by operating the cover to the open position, the interval changing unit can be easily operated from above the separating unit, and workability is improved.

In the present invention,
It is preferable that the interval changing unit changes the position of a bearing unit that rotatably supports a portion of the upper rotating body opposite to the transport body up and down.

  According to the present invention, by changing the position of the bearing portion up and down, it is possible to change the position of the portion of the upper rotating body on the opposite side of the transport body up and down without forcing the rotation of the upper rotating body. .

In the present invention,
A first interval changing unit and a second interval changing unit are provided,
The first interval changing unit changes the position of a portion of the upper rotating body or the lower rotating body on the opposite side of the transport body up and down, and moves the upper rotating body or the lower rotating body in a vertical direction. By changing the inclination angle, the vertical interval is changed,
The second interval changing unit changes the position of a portion of the upper rotating body or the lower rotating body on the side of the transport body up and down, and changes an inclination angle of the upper rotating body or the lower rotating body in a vertical direction. It is preferable to change the vertical distance by changing.

  Depending on the type of crop and the condition of crop growth, there are many crops and branches overall, there are few crops and branches overall, and the crops and branches are gathered at the top of the crop Various states of the crop are assumed, such as a state where the fruits and branches of the crop are gathered near the base of the crop.

According to the present invention, it is possible to accurately change the vertical distance between the upper rotating body and the lower rotating body on the opposite side of the transport body by the first spacing changing unit.
The second interval changing unit can accurately change the vertical interval between the upper rotating body and the lower rotating body on the transport body side.
By operating both the first and second interval changing units, the vertical interval between the upper rotating body and the lower rotating body can be entirely accurately changed.

  Thereby, in the vertical interval between the upper rotator and the lower rotator, by changing the vertical interval of an appropriate portion of the upper rotator and the lower rotator with high accuracy in accordance with various conditions of the crop, the distance from the crop can be improved. The actual separation performance can be improved.

In the present invention,
On the opposite wall portion of the transporting body in the separation unit, a portion of the upper rotating body and the lower rotating body on the opposite side of the transporting body is rotatably supported,
The first interval changing unit is provided on a wall of the separation unit opposite to the transport body,
A portion of the upper rotator and the lower rotator on a side of the carrier is rotatably supported on a wall of the separator on the side of the carrier,
It is preferable that the second interval changing unit is provided on a wall portion of the separation unit on the transport body side.

  According to the present invention, by providing the first and second interval changing portions on the wall on the opposite side of the transporter and the wall on the transporter side in the separation section, the wall on the opposite side of the transporter in the separation section and the transporter are provided. Since the body-side wall can be used also as a support member of the first and second gap changing portions, it is advantageous in terms of simplification of the structure.

In the present invention,
A operable cover is provided at a closed position that covers the upper side of the separation unit and an open position that opens the upper side of the separation unit,
The first interval changing unit changes the position of a portion of the upper rotating body on the opposite side of the transport body up and down, and changes the inclination angle of the upper rotating body in the up-down direction, thereby changing the vertical direction. Change the interval,
The second interval changing unit changes the vertical interval by changing the position of the portion of the upper rotator on the transport body side up and down and changing the inclination angle of the upper rotator in the vertical direction. Then, it is preferable.

  According to the present invention, a cover for covering the upper side of the separation unit is provided, and by operating the cover to the open position, maintenance work inside the separation unit can be easily performed from the upper side of the separation unit. Can be improved.

  According to the present invention, when the vertical interval between the upper rotator and the lower rotator is changed, the positions of the portion of the upper rotator on the opposite side of the transporter and the portion on the transporter side are changed up and down. And the second interval changing unit is disposed at a relatively high position in the separation unit. Accordingly, by operating the cover to the open position, the first and second interval changing sections can be easily operated from above the separating section, and workability is improved.

In the present invention,
The first interval changing unit changes the position of a bearing unit that rotatably supports a portion of the upper rotating body on the opposite side of the transport body up and down,
It is preferable that the second interval changing unit changes the position of a bearing unit that rotatably supports a portion of the upper rotating body on the side of the transport body up and down.

  According to the present invention, by changing the position of the bearing portion up and down, without forcing the rotation of the upper rotating body, the position of the portion of the upper rotating body on the side opposite to the transport body and the position of the transport body side portion are raised and lowered. Can be changed.

In the present invention,
A drive shaft to which power is transmitted is provided, and a transmission shaft is connected to the drive shaft via a universal joint,
A portion of the upper rotating body on the opposite side of the transport body and the transmission shaft are connected via a universal joint,
It is preferable that the power of the drive shaft is transmitted to the upper rotating body via the transmission shaft.

  According to the present invention, power is transmitted from the drive shaft to a portion of the upper rotating body opposite to the transporting body, and the power is transmitted to the upper rotating body without being affected by the transporting body. can do.

  According to the present invention, the portion of the upper rotating body opposite to the carrier is connected to the drive shaft by the transmission shaft and the universal joint. Therefore, by bending the transmission shaft and the universal joint, a state in which the position of the upper rotating body on the opposite side of the carrier is changed up and down is allowed, and the rotation of the upper rotating body is not forced. The position of the upper rotating body on the side opposite to the carrier can be changed up and down.

It is a left view of an edamame. It is a top view of an edamame harvester. It is a cross-sectional plan view of the vicinity of the rear part of a harvesting part, and the 1st lower rotating body and the 2nd lower rotating body of a separation part. It is a cross-sectional plan view of the vicinity of the 1st upper rotating body and the 2nd upper rotating body of a separation part. FIG. 5 is a left side view of the vicinity of a transport end portion of a first transport body, a transport start end portion of a second transport body, and a posture changing unit. FIG. 11 is a vertical cross-sectional rear view of the vicinity of a conveyance start end of a second conveyance body, a second upper rotating body and a second lower rotating body of a separation unit. FIG. 10 is a vertical cross-sectional rear view of the second upper rotator and the second lower rotator of the separation unit near the opposite side of the second transporter. FIG. 10 is a vertical cross-sectional rear view of the first upper rotator and the first lower rotator of the separation unit near the opposite side of the second transporter. It is a front view near the 1st interval change part (1st upper rotating body). It is a front view near the 1st interval change part (2nd upper rotating body). It is an exploded perspective view near the 2nd interval change part (the 1st upper rotating body and the 2nd upper rotating body). It is a schematic diagram showing a transmission system from an engine to each part. It is sectional drawing seen from the 2nd conveyance body in a 1st upper rotating body and a 1st lower rotating body. It is sectional drawing seen from the 2nd conveyance body in a 2nd upper rotating body and a 2nd lower rotating body. It is sectional drawing seen from the 2nd conveyance body in a 2nd upper rotating body and a 2nd lower rotating body. It is sectional drawing seen from the 2nd conveyance body in a 2nd upper rotating body and a 2nd lower rotating body.

FIGS. 1 to 16 show an edamame harvesting machine which is an example of a crop harvesting machine.
1 to 16, F indicates “forward” of the body 1, B indicates “rearward” of the body 1, U indicates “upward” of the body 1, and D indicates “down” of the body 1. Direction ". R indicates the “right direction” of the body 1, and L indicates the “left direction” of the body 1.

(Overall structure of green soybean harvester)
As shown in FIG. 1 and FIG. 2, the body 1 is supported by right and left crawler type traveling devices 2, and a harvesting unit 3 is provided on a left front portion of the body 1. An operation unit 4 is provided on the right side of the unit. A separation unit 5 is provided at the rear of the body 1, and a support 6 and a work deck 7 are provided at the right part of the body 1.

(Structure of the harvesting unit)
As shown in FIGS. 1, 2, and 3, right and left driven pulleys 45 are rotatably supported at the front of the harvesting unit 3 around an axis P1 along an oblique vertical direction. At the rear of the part 3, right and left drive pulleys 46 are rotatably supported around an axis P2 along an oblique vertical direction. In this case, the axis P1 and the axis P2 are parallel to each other.

  The right first conveyor 8 made of a rubber belt is attached to the right driven pulley 45 and the right drive pulley 46. The left first conveyor 8 made of a rubber belt is attached to the left driven pulley 45 and the left drive pulley 46.

  The right and left first carriers 8 are aligned over the entire length of the harvesting unit 3. A large number of rollers 47 are rotatably supported by the harvesting unit 3, and the rollers 47 support the opposite side of the mating portion (the holding portion of the crop A) of the first transport body 8. A right and left divider 48 and a subsoiler 49 are attached to the front of the harvesting unit 3.

The harvesting unit 3 is supported along the front-rear direction on the left side of the front part of the body 1 so that the front of the harvesting unit 3 is on the lower side and the rear of the harvesting unit 3 is on the upper side. Have been.
In the first transport body 8, the vicinity of the driven pulley 45 is the transport start end 8a, and the vicinity of the drive pulley 46 is the transport end section 8b. Thereby, the right and left first transport bodies 8 are linearly and obliquely upwardly rearward from the transport start end 8a to the transport end section 8b of the first transport body 8 without being twisted. Has been extended.

(Configuration of the second carrier)
As shown in FIGS. 1, 3, 5, and 6, a driving mechanism 32 is supported on the left portion of the body 1, and the driving mechanism 32 is provided with a driving sprocket 32a that is driven to rotate around a left-right axis. ing. Rotating wheels 55 and 56 are rotatably supported around the left-right axis at the left front portion of the body 1, and a rotating wheel 57 rotates around the left-right axis at the left rear portion of the body 1. It is freely supported.

  A second carrier 9 (corresponding to a carrier) is attached to the drive sprocket 32 a of the drive mechanism 32 and the rotating wheels 55, 56, 57. The second transport body 9 is a metal chain, and is provided with a triangular convex portion in a side view toward the outside. The second carrier 9 is driven to rotate clockwise in FIG. 1 by the drive sprocket 32a of the drive mechanism 32.

  The second transport body 9 extends rearward from the transport end 8 b of the first transport body 8, is disposed on the left side of the body 1 along the front-rear direction, and is located on the right side of the second transport body 9. A separation unit 5 is provided. In the second transport body 9, a portion between the rotating wheel 55 and the rotating wheel 56 is a transport starting end portion 9a, and a portion near the rotating wheel 57 is a transport ending portion 9b.

As shown in FIGS. 1 and 5, the front part (portion of the rotating wheel 55) of the transport start end 9 a of the second transport body 9 is connected to the rear portion (portion of the rotary wheel 56) of the second transport body 9. Portion), the transport start end 9a of the second transport body 9 is disposed in an obliquely upward inclination along the lower side of the transport end portion 8b of the first transport body 8. I have.
The portion from the rear portion (portion of the rotating wheel 56) of the transport start end portion 9a of the second transport body 9 to the transport end portion 9b is disposed in a substantially horizontal posture in a side view.

(Configuration of guide rail)
As shown in FIGS. 1, 5, and 6, the guide rail 13 has short channel-like members arranged in a line along the front-rear direction with the open side facing downward, and adjacent front-rear channel-like members are vertically aligned. They are connected to each other by pins so as to bend. The guide rail 13 extends rearward along the upper side of the second transport body 9.

  A support frame 58 is supported on the upper left portion of the body 1 along the front-rear direction. A large number of support rods 59 are supported on the support frame 58 so as to be vertically movable, and the above-mentioned pins for connecting the channel-shaped members of the guide rails 13 are supported below the support rods 59. ) Is supported to be vertically movable. A spring 60 for urging the support rod 59 downward is provided, and the guide rail 13 is pressed by the second transport body 9.

  In the guide rail 13, the leading channel-shaped member on the side of the transport start end 9a of the second transport body 9 is the transport start end 13a. The transport start end 13a of the guide rail 13 is located slightly behind the rear portion (the rotating wheel 56) of the transport start end 9a of the second transport body 9.

  According to the above configuration, as described below (in the flow of the entire harvest of the green soybean harvester, the state at the harvesting unit), the root A1 of the crop A is located between the second transport body 9 and the guide rail 13. When pinched, the guide rail 13 is lifted upward so as to be bent by the stock A1 of the crop A. The bias of the spring 60 causes the crop A to move between the second carrier 9 and the guide rail 13. Is held by a sufficient holding force.

  A guide member 61 made of a round bar is attached to the conveyance start end 13 a of the guide rail 13. The guide member 61 extends forward along the second transport body 9, and extends obliquely upward in a side view from a rear portion (portion of the rotating wheel 56) of the transport start end 9 a of the second transport body 9. Has been extended to. Since the guide member 61 is attached to the transfer start end 13a of the guide rail 13, the guide member 61 moves up and down integrally with the transfer start end 13a of the guide rail 13.

(Configuration of the posture changing unit)
As shown in FIGS. 1, 2, and 5, an attitude changing unit 62 is attached to an upper part of the transport end part 8 b of the first transport body 8. The posture changing section 62 includes a guide section 63, an endless rotating body 64, and a claw body 65.

  The guide portion 63 is provided in two sets, an upper side and a lower side, and is closer to the separation portion 5 in plan view from the transport end portion 8b of the first transport body 8 to the transport start end portion 9a of the second transport body 9. It is arranged obliquely on the side (right side).

  The power transmitted to the first transporting body 8 (the driving pulley 46) branches and is transmitted to the endless rotating body 64, and the endless rotating body 64 is driven to rotate clockwise in FIG. The claw body 65 is attached to the endless rotating body 64 at a predetermined interval along the moving direction of the endless rotating body 64, and is driven to rotate clockwise in FIG. 2 integrally with the endless rotating body 64.

(Configuration of separation unit)
As shown in FIGS. 1, 2, and 3, a separation unit 5 is provided on the right side of the second transport body 9.
The separating unit 5 includes a first upper rotating body 11 (corresponding to an upper rotating body), a first lower rotating body 12 (corresponding to a lower rotating body), a second upper rotating body 21 (corresponding to an upper rotating body), and a second lower rotating body. A rotating body 22 (corresponding to a lower rotating body) is provided.

  In the separation section 5, a collection conveyor 10 arranged along the front-rear direction is provided below the first upper rotator 11, the first lower rotator 12, the second upper rotator 21, and the second lower rotator 22. Have been.

  A transport conveyor 14 is provided below the rear part of the recovery conveyor 10 along the left-right direction, and a discharge conveyor 15 is provided at a predetermined interval from the rear part of the recovery conveyor 10 to the rear side. Is provided with Karamin 16

  As shown in FIGS. 3, 4, and 6, walls 43 and 44 of the separation unit 5 on the opposite side of the second transport body 9 are provided. The wall portion 43 is disposed in the front-rear direction (parallel to the second transport body 9) in plan view, and the wall portion 44 is disposed obliquely to intersect with the front-rear direction (second transport body 9) in plan view.

  Walls 40, 54, 58 a on the second transport body 9 side in the separation unit 5 are provided, and the walls 40, 54, 58 a are arranged in the front-rear direction (parallel to the second transport body 9) in plan view. I have. As shown in FIGS. 6 and 11, the wall portion 58 a is a surface of the support frame 58 on the separation portion 5 side, and the wall portion 40 is a plate-shaped member connected to the wall portion 58 a of the support frame 58.

  An opening 66 is provided between the upper wall portions 40 and 58a and the lower wall portion 54 along the second transport body 9 and is transported by the second transport body 9 and the guide rail 13. The crop A enters the inside of the separation unit 5 from the opening 66 in the sideways posture and is transported to the rear side.

  As shown in FIGS. 1, 2, and 3, a cover 53 is provided above the separating unit 5. The cover 53 slides in a front-rear direction between a closed position (see FIGS. 1 and 2) that covers the upper side of the separation unit 5 and an open position that opens the upper side of the separation unit 5 at a position rearward from the closed position. It is operably supported.

(Arrangement of the first upper rotator and the first lower rotator in the separation unit, and arrangement of the second upper rotator and the second lower rotator)
As shown in FIGS. 3, 4, and 8, in the separation unit 5, the first upper rotating body 11 is rotatable around a first upper axis P <b> 11 (corresponding to the upper axis) so as to be rotatable. And is supported over.
The first lower rotating body 12 is rotatable about the first lower axis P12 (corresponding to the lower axis) along the first upper axis P11 below the first upper axis P11 so as to freely rotate with the wall portion 44. It is supported over the wall 54.

As shown in FIGS. 3, 4, 6, and 7, in the separation unit 5, the second upper rotating body 21 is rotatably rotated around the second upper axis P <b> 21 (corresponding to the upper axis) with the wall 44. It is supported over the wall 40.
The second lower rotating body 22 is rotatable about the second lower axis P22 (corresponding to the lower axis) along the second upper axis P21 below the second upper axis P21 so as to freely rotate with the wall portion 44. It is supported over the wall 54.

  As shown in FIGS. 3 and 4, the first upper rotator 11 and the first lower rotator 12 are closer to the transport start end of the second transporter 9 than the second upper rotator 21 and the second lower rotator 22. 9a side (front side).

  The portion of the first upper rotating body 11 and the first lower rotating body 12 on the side of the second transport body 9 is larger than the portions of the first upper rotating body 11 and the first lower rotating body 12 on the opposite side of the second transport body 9. The first upper rotating body 11 and the first lower rotating body 12 (the first upper shaft center P11 and the first lower shaft center P12) are located on the side of the transport start end 9a (front side) of the second transport body 9. , The second carrier 9 is arranged to be inclined (intersecting) in plan view.

  The portion of the second upper rotating body 21 and the second lower rotating body 22 on the side of the second transport body 9 is larger than the portion of the second upper rotating body 21 and the second lower rotating body 22 on the opposite side of the second transport body 9. The second upper rotating body 21 and the second lower rotating body 22 (the second upper shaft center P21 and the second lower shaft center P22) are located on the side of the transport start end 9a (front side) of the second transport body 9. , The second carrier 9 is arranged to be inclined (intersecting) in plan view.

  The second upper rotator 21 and the second lower rotator 12 and the second lower rotator 12 (the first upper axis P11 and the first lower axis P12) and the angle B1 between the second carrier 9 and the second upper rotator 21 and the second The angle B2 between the lower rotating body 22 (the second upper axis P21 and the second lower axis P22) and the second transport body 9 is set to be large.

  Thereby, the second upper rotating body 21 and the second lower rotating body 22 (the second upper shaft center P21 and the second lower shaft center P22) are combined with the first upper rotating body 11 and the first lower rotating body 12 (the first upper rotating body 12). The posture is closer to the posture orthogonal to the second conveyance body 9 in plan view than the shaft center P11 and the first lower shaft center P12).

(Configuration of the first upper rotating body, the first lower rotating body, the second upper rotating body, and the second lower rotating body)
As shown in FIGS. 3, 4, 13, and 14, the first upper rotating body 11 is provided with a shaft portion 11a and two hitting portions 11b and 11c. Similarly, the first lower rotator 12, the second upper rotator 21, and the second lower rotator 22 have shaft portions 12a, 21a, 22a and two hitting portions 12b, 12c, 21b, 21c, 22b, 22c. Is provided.

  In the first upper rotating body 11 (the first lower rotating body 12, the second upper rotating body 21, and the second lower rotating body 22), the shaft portions 11a, 12a, 21a, 22a are formed in a hexagonal axis shape. It is rotatably supported around one upper axis P11 (first lower axis P12, second upper axis P21, second lower axis P22).

  In the first upper rotator 11 (the first lower rotator 12, the second upper rotator 21, and the second lower rotator 22), the hitting portions 11b, 11c, 12b, 12c, 21b, 21c, 22b, and 22c are flat. Are connected to the shaft portions 11a, 12a, 21a, 22a with a phase difference of 180 degrees from each other, and extend outward in the radial direction. Hard rubber edges 11d, 12d, 21d, 22d are attached to outer ends of the hitting portions 11b, 11c, 12b, 12c, 21b, 21c, 22b, 22c.

  As shown in FIGS. 13 and 14, the diameter D1 of the rotation locus of the first upper rotating body 11 and the diameter D1 of the rotation locus of the first lower rotating body 12 are set to be the same. The diameter D2 of the rotation locus of the second upper rotator 21 and the diameter D2 of the rotation locus of the second lower rotator 22 are set to be the same.

The hitting portions 11b, 11c, 12b, 12c of the first upper rotating body 11 and the first lower rotating body 12 are larger than the hitting portions 21b, 21c, 22b, 22c of the second upper rotating body 21 and the second lower rotating body 22. It is configured to be long in the radial direction.
Thereby, the diameter D1 of the rotation trajectory of the first upper rotator 11 and the first lower rotator 12 is set to be larger than the diameter D2 of the rotation trajectory of the second upper rotator 21 and the second lower rotator 22. ing.

(Configuration of transmission system from engine to each part)
As shown in FIG. 12, an engine 18 is supported at the lower part of the driving unit 4, a transmission case 19 is supported at the left and right center of the front part of the fuselage 1, and a hydrostatic stepless transmission 20 is mounted on the transmission case. 19.

  The power of the engine 18 is transmitted to the input shaft of the continuously variable transmission 20 via the transmission belt 24, and the power of the continuously variable transmission 20 is transmitted to the auxiliary transmission (not shown) and the like inside the transmission case 19. Via the driving device 2. The power of the continuously variable transmission 20 is transmitted to the harvesting unit 3 (drive pulley 46) and the posture changing unit 62 via the gear transmission mechanism 25 and the transmission belt 23.

  The power of the engine 18 is transmitted to the driving mechanism 32 via the transmission belt 27, the transmission shaft 28, the transmission belt 29, the transmission shaft 30, and the transmission belt 31, and the second transport body 9 is rotationally driven by the driving mechanism 32. .

  The power of the transmission shaft 28 is transmitted to the collection conveyor 10 and the discharge conveyor 15 via the transmission belt 34, the gear type transmission mechanism 35 and the transmission belt 36, and the collection conveyor 10 and the discharge conveyor 15 are driven to rotate.

  The power of the recovery conveyor 10 is transmitted to the conveyor 14 via a transmission belt 37, a bevel gear type transmission mechanism 38, and a transmission chain 39, and the conveyor 14 is driven to rotate. The power of the transmission shaft 28 is transmitted to the Karamin 16 via the transmission belt 33, and the Karamin 16 is rotationally driven.

(Configuration of the transmission system of the first upper rotating body and the first lower rotating body, the second upper rotating body, and the second lower rotating body in the separation unit)
As shown in FIGS. 4, 7, and 8, first gap changing sections 41 and 51 (corresponding to gap changing sections) (corresponding to first gap changing sections) are provided on the wall section 44. A portion of the first upper rotating body 11 (shaft portion 11 a) on the opposite side of the second transport body 9 is rotatably supported by the first interval changing portion 41, and is provided at the shaft portion 21 a of the second upper rotating body 21. A portion on the opposite side of the second transport body 9 is rotatably supported by the first interval changing unit 51.

  As shown in FIGS. 4, 5, and 6, second space changing portions 42 and 52 (corresponding to second space changing portions) are provided on the wall portion 40. A portion of the shaft 11a of the first upper rotating body 11 on the side of the second transport body 9 is rotatably supported by the second interval changing unit 42, and the second transport of the shaft 21a of the second upper rotating body 21 is performed. The part on the side of the body 9 is rotatably supported by the second interval changing part 52.

  As shown in FIGS. 5, 6, 7, and 8, bearing portions 67 are provided on the wall portions 44 and 54. A portion of the shaft portion 12a of the first lower rotating body 12 on the side opposite to the second transporting body 9 and a portion on the side of the second transporting body 9 are rotatably supported by bearings 67 of the walls 44 and 54. A portion of the shaft portion 22a of the second lower rotating body 22 on the opposite side of the second transporting body 9 and a portion on the second transporting body 9 side are rotatably supported by bearings 67 of the walls 44 and 54.

  As shown in FIGS. 3, 4, 7, 8, walls 68, 69 are provided outside the wall 44, and the drive shaft 70 is supported over the walls 68, 69. The transmission belt 34 is attached to the pulley 70c of the drive shaft 70, and the power of the transmission shaft 28 is transmitted to the drive shaft 70 via the transmission belt 34 (the above-described (the configuration of the transmission system from the engine to each unit)). And FIG. 12).

  On the upper side of the drive shaft 70, the drive shaft 71 is supported over the wall portions 68 and 69, and the transmission gear 70a of the drive shaft 70 and the transmission gear 71a of the drive shaft 71 are engaged. The drive shafts 72 and 73 are supported by the wall 69, and a transmission chain 74 is mounted over the sprocket 70 b of the drive shaft 70 and the sprocket 72 a of the drive shaft 72, and the sprocket 71 b and the drive shaft 73 of the drive shaft 71 are mounted. A transmission chain 75 is attached to the sprocket 73a.

  The transmission shaft 76 is connected to the drive shaft 72 via a universal joint 77, and the transmission shaft 76 is connected via the universal joint 77 to a portion of the shaft portion 12 a of the first lower rotating body 12 opposite to the second transport body 9. It is connected. The transmission shaft 76 is connected to the drive shaft 70 via a universal joint 77, and the transmission shaft 76 is connected via the universal joint 77 to a portion of the shaft portion 22 a of the second lower rotating body 22 opposite to the second transport body 9. It is connected.

  The transmission shaft 78 is connected to the drive shaft 73 via a universal joint 79, and the transmission shaft 78 is connected via the universal joint 79 to a portion of the shaft portion 11 a of the first upper rotating body 11 opposite to the second transport body 9. It is connected. The transmission shaft 78 is connected to the drive shaft 71 via a universal joint 79, and the transmission shaft 78 is connected via the universal joint 79 to a portion of the shaft portion 21 a of the second upper rotating body 21 opposite to the second transport body 9. It is connected.

  With the above configuration, as shown in FIG. 12, the power of the drive shaft 70 is transmitted to the second lower rotating body 22 via the transmission shaft 76, and the transmission gear 70a of the drive shaft 70, the transmission gear 71a of the drive shaft 71, The power is transmitted to the second upper rotating body 21 via the drive shaft 71 and the transmission shaft 78.

The power of the drive shaft 70 is transmitted to the first lower rotating body 12 via the transmission chain 74, the drive shaft 72, and the transmission shaft 76, and the transmission gear 70a of the drive shaft 70, the transmission gear 71a of the drive shaft 71, the transmission chain 75 Is transmitted to the first upper rotating body 11 via the drive shaft 73 and the transmission shaft 78.
You.

(Rotation direction of first upper rotator and first lower rotator, rotation direction of second upper rotator and second lower rotator)
As described above (the configuration of the transmission system of the first upper rotator and the first lower rotator, and the second upper rotator and the second lower rotator in the separation unit), as shown in FIGS. , A rotation phase setting unit 80 is provided in the separation unit 5.

  The rotation phase setting unit 80 includes a drive shaft 70, 71, 72, 73, a transmission gear 70 a, 71 a of the drive shaft 70, 71, a gear mechanism by the transmission gear 70 a, 71 a of the drive shaft 70, 71 being engaged, a transmission chain. 74, 75 and the like. In this case, a plurality of transmission gears (not shown) can be used instead of the transmission chains 74 and 75.

  As described below, the rotation phases C1 and C2 of the first upper rotator 11 and the first lower rotator 12 are set by the rotation phase setting unit 80, and the second upper rotator 21 and the second lower rotator 22 are set. Rotation directions C1 and C2 are set.

  As shown in FIGS. 8 and 14, the second lower rotary body 22 is driven to rotate in the rotation direction C2 by the drive shaft 70, and the drive shaft 70 is driven by the transmission gears 70 a, 71 a of the drive shafts 70, 71. Is transmitted to the drive shaft 71 as reverse power, and the second upper rotating body 21 is rotationally driven in the rotational direction C1.

  As a result, the striking portions 21b and 21c of the second upper rotating body 21 and the striking portions 22b and 22c of the second lower rotating body 22 move the portion between the second upper rotating body 21 and the second lower rotating body 22 to the second position. The rotation direction C1 of the second upper rotator 21 and the rotation direction C2 of the second lower rotator 22 are set so as to move toward the transfer start end 9a of the two transfer members 9.

  As shown in FIGS. 4, 7, and 8, the power of the drive shaft 71 is transmitted to the drive shaft 73 as power in the same direction via the transmission chain 75. As shown in FIG. The rotating body 11 is driven to rotate in the same rotation direction C1 as the second upper rotating body 21.

  As shown in FIGS. 3, 7, and 8, the power of the drive shaft 70 is transmitted to the drive shaft 72 via the transmission chain 74 as power in the same direction. As shown in FIG. The rotator 12 is driven to rotate in the same rotation direction C2 as the second lower rotator 22.

  As a result, the striking portions 11b and 11c of the first upper rotating body 11 and the striking portions 12b and 12c of the first lower rotating body 12 move the portion between the first upper rotating body 11 and the first lower rotating body 12 to the first position. The rotation direction C1 of the first upper rotator 11 and the rotation direction C2 of the first lower rotator 12 are set so as to move toward the transfer start end 9a of the two transfer members 9.

(Rotation phase of the first upper rotator and the first lower rotator)
The rotation phase of the first upper rotator 11 and the first lower rotator 12 is set by the rotation phase setting unit 80 as described below.

  As shown in FIGS. 3, 4, 7, and 8, the transmission gear 70a of the drive shaft 70 and the transmission gear 71a of the drive shaft 71 have the same diameter, and the rotation speed (unit time (Rotation speed per unit) (angular speed) and the rotation speed of the second upper rotating body 21 (rotation speed per unit time) (angular speed) are the same.

  The sprocket 70b of the drive shaft 70 and the sprocket 71b of the drive shaft 71 have the same diameter, and the sprocket 72a of the drive shaft 72 and the sprocket 73a of the drive shaft 73 have the same diameter. The sprockets 72a, 73a of the drive shafts 72, 73 are slightly larger in diameter than the sprockets 70b, 71b of the drive shafts 70, 71.

Thereby, the rotation speed (the rotation speed per unit time) (angular speed) of the first upper rotating body 11 and the rotation speed (the rotation speed per unit time) (angular speed) of the first lower rotating body 12 are the same. Has become.
The rotation speeds of the second upper rotator 21 and the second lower rotator 22 are slightly higher than the rotation speeds of the first upper rotator 11 and the first lower rotator 12.

  As shown in FIG. 13, the rotation phases of the hitting portions 11 b and 11 c of the first upper rotating body 11 and the rotating phases of the hitting portions 12 b and 12 c of the first lower rotary body 12 are set to be different by 90 degrees. .

  When the striking portion 11b of the first upper rotator 11 passes through a portion between the first upper rotator 11 and the first lower rotator 12, the striking portion 12b of the first lower rotator 12 then moves to the first lower rotator 12. It passes through a portion between the upper rotating body 11 and the first lower rotating body 12.

  Next, the striking portion 11c of the first upper rotating body 11 passes through a portion between the first upper rotating body 11 and the first lower rotating body 12, and then the striking portion 12c of the first lower rotating body 12 It passes through a portion between the first upper rotating body 11 and the first lower rotating body 12.

  As described above, the striking portions 11 b and 11 c of the first upper rotating body 11 and the striking portions 12 b and 12 c of the first lower rotating body 12 form a portion between the first upper rotating body 11 and the first lower rotating body 12. Pass alternately with each other.

  One of the hitting portions 11b and 11c of the first upper rotating body 11 and the hitting portions 12b and 12c of the first lower rotating body 12 pass through a portion between the first upper rotating body 11 and the first lower rotating body 12. After that, the other of the hitting portions 11b and 11c of the first upper rotating body 11 and the hitting portions 12b and 12c of the first lower rotating body 12 is a portion between the first upper rotating body 11 and the first lower rotating body 12. Assuming a first time T1 before passing through, the first time T1 is the same in each of the hitting portions 11b and 11c of the first upper rotating body 11 and the hitting portions 12b and 12c of the first lower rotating body 12. That's it.

(Rotation phase of second upper rotator and second lower rotator)
The rotation phase of the second upper rotator 21 and the second lower rotator 22 is set by the rotation phase setting unit 80 as described below.

  As shown in FIG. 14, the rotation phases of the hitting portions 21b and 21c of the second upper rotating body 21 and the rotating phases of the hitting portions 22b and 22c of the second lower rotary body 22 are smaller than 90 degrees (large angle). ) Is set differently.

  As shown in FIGS. 14 and 15, when the hitting portion 21b of the second upper rotating body 21 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22, the second lower rotating body The hitting portion 22b of the body 22 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22.

  Next, as shown in FIG. 16, the hitting portion 21c of the second upper rotating body 21 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22, and then the second lower rotating body 21 The hitting portion 22 c of 22 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22.

  As described above, the striking portions 21b and 21c of the second upper rotating body 21 and the striking portions 22b and 22c of the second lower rotating body 22 form a portion between the second upper rotating body 21 and the second lower rotating body 22. Pass alternately with each other.

  As shown in FIG. 14, after the impact portion 21 b of the second upper rotating body 21 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22, Assume a second time T21 until the impact portion 22b passes through a portion between the second upper rotating body 21 and the second lower rotating body 22.

  As shown in FIG. 16, after the hitting portion 21 c of the second upper rotating body 21 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22, It is the same second time T21 as described above until the impact portion 22c passes through the portion between the second upper rotating body 21 and the second lower rotating body 22.

  As shown in FIG. 15, after the hitting portion 22 b of the second lower rotating body 22 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22, Assume a second time T22 until the impact portion 21c passes through a portion between the second upper rotating body 21 and the second lower rotating body 22.

  As shown in FIG. 16, after the hitting portion 22 c of the second lower rotating body 22 passes through a portion between the second upper rotating body 21 and the second lower rotating body 22, The second time T22 is the same as described above until the impact portion 21b passes through the portion between the second upper rotating body 21 and the second lower rotating body 22.

  In this case, the rotation phases of the striking portions 21b and 21c of the second upper rotator 21 and the rotation phases of the striking portions 22b and 22c of the second lower rotator 22 are different at angles smaller than 90 degrees (large angles). , The second time T21 is set to be shorter than the second time T22.

Comparing the aforementioned (rotation phases of the first upper rotator and the first lower rotator) and the first time T1 (see FIG. 13) with the second times T21 and T22, the second upper rotator 21 and the second Since the rotation speed of the lower rotating body 22 is slightly higher than the rotation speeds of the first upper rotating body 11 and the first lower rotating body 12, the second times T21 and T22 are longer than the first time T1. It is set to be short.
In this case, the second time T21 may be set to be shorter than the first time T1, and the first time T1 may be set to be shorter than the second time T22.

(Configuration of the first interval changing unit)
As shown in FIGS. 4, 7, 8, 9, and 10, the first upper rotator 11 and the first lower rotator 12 (the second upper rotator 21 and the second lower rotator 22) are opposite to each other at the wall portion 44. A guide portion 81 is connected to the side surface along the vertical direction, and a flat support plate 82 is supported by the guide portion 81 so as to be slidable in the vertical direction along the wall portion 44.

  A bearing 83 is connected to the support plate 82, and a portion of the shaft 11 a (the shaft 21 a) of the first upper rotating body 11 (the second upper rotating body 21) on the opposite side of the second transport body 9 is a bearing. The portion 83 is rotatably supported. As described above (the configuration of the transmission system of the first upper rotating body and the first lower rotating body, the second upper rotating body, and the second lower rotating body in the separation unit), the first upper rotating body 11 (the second A transmission shaft 78 is connected via a universal joint 79 to a portion of the shaft portion 11a (shaft portion 21a) of the upper rotating body 21) opposite to the second transporting body 9.

  A bolt 84 is rotatably supported on the upper side of the wall portion 44 about a vertical axis, and a flat operation portion 84 a is connected to the head of the bolt 84. A conical spring 85 and a nut 86 are attached to the bolt 84, and the horizontal portion 44a of the wall portion 44 is sandwiched between the upper and lower conical springs 85. Even when the bolt 84 is rotated, the horizontal portion of the wall portion 44 is formed. The bolt 84 does not move up and down with respect to 44a.

The boss portion 82a is connected to the support plate 82, and a female screw portion is formed on the inner surface of the boss portion 82a. A bolt 84 is inserted into the boss 82 a of the support plate 82, and a spring 87 is mounted between the boss 82 a of the support plate 82 and the nut 86.
As described above, the first interval changing units 41 and 51 include the support plate 82 (the boss 82a), the bolt 84 (the operation unit 84a), the disc spring 85, the nut 86, the spring 87, and the like.

(Configuration of the second interval changing unit)
As shown in FIGS. 4 and 11, the guide portion is provided on the surface of the wall portion 40 on the side of the first upper rotating body 11 and the first lower rotating body 12 (the second upper rotating body 21 and the second lower rotating body 22). 81 are connected along the up-down direction. A support plate 82 bent into an angle material in a plan view is supported by a guide portion 81 so as to be slidable vertically along the wall portion 40.

  A bearing 83 is connected to the support plate 82, and a portion of the shaft 11 a (the shaft 21 a) of the first upper rotating body 11 (the second upper rotating body 21) on the side of the second transport body 9 is a bearing 83. It is supported rotatably.

  A bolt 84 is rotatably supported around a vertical axis at a horizontal portion 88 at an upper portion of the separation portion 5, and a flat operation portion 84 a is connected to a head of the bolt 84. A conical spring 85 and a nut 86 are attached to the bolt 84, and the horizontal portion 88 is sandwiched between the upper and lower conical springs 85. Even if the bolt 84 is rotated, the bolt 84 moves up and down relative to the horizontal portion 88. Not to move to.

The boss portion 82a is connected to the support plate 82, and a female screw portion is formed on the inner surface of the boss portion 82a. A bolt 84 is inserted into the boss 82 a of the support plate 82, and a spring 87 is mounted between the boss 82 a of the support plate 82 and the nut 86.
As described above, the second interval changing units 42 and 52 include the support plate 82 (the boss 82a), the bolt 84 (the operation unit 84a), the disc spring 85, the nut 86, the spring 87, and the like.

(Operation states of the first interval changing unit and the second interval changing unit)
As shown in FIGS. 1 and 2, when the cover 53 is operated to the closed position, the first gap changing units 41 and 51 and the second gap changing units 42 and 52 are positioned below the cover 53. , And a cover 53. When the cover 53 is operated to the open position, the operating portions 84a of the bolts 84 are exposed in the first interval changing portions 41 and 51 and the second interval changing portions 42 and 52.

  As shown in FIGS. 4, 7, and 8, in the first interval changing units 41 and 51 and the second interval changing units 42 and 52, when the bolt 84 is rotated with the operation unit 84 a of the bolt 84, the bolt 84 and The support plate 82 is slid up and down by a screw action with the boss portion 82a of the support plate 82.

  In the first interval changing units 41 and 51, the position of the bearing unit 83 is changed up and down with the vertical sliding operation of the support plate 82, and the shaft of the first upper rotating body 11 (second upper rotating body 21) is changed. The position of the part on the opposite side of the second transport body 9 in the part 11a (the shaft part 21a) is changed up and down.

  With this, the portion of the shaft 11a (the shaft 21a) of the first upper rotating body 11 (the second upper rotating body 21) on the side of the second transporting body 9 (the second interval changing portions 42 and 52) is used as a fulcrum. The inclination angle of the shaft portion 11a (shaft portion 21a) of the first upper rotator 11 (second upper rotator 21) in the up-down direction is changed, so that the first upper rotator 11 and the first lower rotator 12 move vertically. The interval (the vertical interval between the second upper rotator 21 and the second lower rotator 22) is changed.

  In this case, the transmission shaft 78 and the universal joint 79 are bent up and down with respect to the drive shafts 71 and 73, so that the shaft portion 11a (the shaft portion 21a) of the first upper rotating body 11 (the second upper rotating body 21). The change of the position of the portion on the opposite side of the second transport body 9 in the above is allowed.

  As shown in FIGS. 4, 6, and 11, in the second interval changing units 42 and 52, the position of the bearing unit 83 is changed up and down in accordance with the vertical sliding operation of the support plate 82, and the first upper rotating body is changed. The position of the portion of the shaft 11a (shaft 21a) of the 11 (second upper rotating body 21) on the side of the second transport body 9 is changed up and down.

  As a result, the portion (the first interval changing portions 41 and 51) of the shaft 11a (the shaft 21a) of the first upper rotating body 11 (the second upper rotating body 21) on the opposite side of the second transport body 9 is used as a fulcrum. The vertical inclination angle of the shaft portion 11a (shaft portion 21a) of the first upper rotating body 11 (second upper rotating body 21) is changed, so that the first upper rotating body 11 and the first lower rotating body 12 (The vertical interval between the second upper rotator 21 and the second lower rotator 22) is changed.

  When both the first interval changing units 41 and 51 and the second interval changing units 42 and 52 are operated, the entire position of the shaft 11a (the shaft 21a) of the first upper rotating body 11 (the second upper rotating body 21). Is changed up and down, and the vertical interval of the shaft portion 11a (shaft portion 21a) of the first upper rotating body 11 (second upper rotating body 21) is entirely changed.

  When the rotation operation of the bolt 84 is stopped, the spring 87 presses the boss portion 82a and the nut 86 of the support plate 82, and the disc spring 85 is pressed by the horizontal portion 44a and the horizontal portion 88 of the wall portion 44 from above and below. The bolt 84 is held so as not to rotate due to frictional resistance between the disc spring 85 and the horizontal portion 44a and the horizontal portion 88 of the wall portion 44.

(In the whole harvest flow of the soybean harvester, the state at the harvesting section)
Regarding the entire flow of harvesting in the soybean harvester, the state of each part is described as follows from this section (in the overall harvesting flow of the soybean harvester, the collection conveyor, the transport conveyor, and the discharge conveyor in the separation unit). Will be described in order.

  As shown in FIGS. 1 and 2, in the harvesting unit 3, when the aircraft 1 is advanced in a state where the divider 48 is in contact with the field and the subsoiler 49 is in the field, the crop A in the field is divided by the divider 48. While the field is collapsed by the subsoiler 49, the crop A in the standing posture of the field enters the transport start end 8a of the first transport body 8 on the right and left.

  The crop A in the upright posture of the field is pinched from the right and left sides by the right and left first transporters 8, and the crop A is pulled out and lifted by the right and left first transporters 8, and the crop A stands up While being maintained in the posture, it is transported along the harvesting section 3 to the rear side diagonally above.

  When the crop A reaches the transport end 8b of the first transport 8, in the transfer portion from the transport end 8 b of the first transport 8 to the transport start 9 a of the second transport 9, the posture changing unit 62 The crop A in the upright posture is changed to the side-to-side posture on the separation unit 5 side, and the upper part of the crop A enters the opening 26a of the dustproof cover 26 so as to fall down.

  As described above, the stock A1 of the crop A is delivered to the transfer start end 9a of the second transfer body 9, and the stock A1 of the crop A in the sideways posture is connected to the second transfer body 9 and the guide rail. 13, and the crop A is transported to the rear side by the second transport body 9.

(In the whole harvest flow of the green soybean harvester, the state at the separation unit (first upper rotating body and first lower rotating body))
As shown in FIG. 3 and FIG. 6, the stock A1 of the crop A in the sideways posture is held (held) between the second transport body 9 and the guide rail 13, and the crop A is transported to the rear side. Then, the crop A enters the inside of the separation unit 5 through the opening 66 of the separation unit 5 and is transported from the transport start end 9a of the second transport body 9 to the transport end 9b.

  In the separation unit 5, the crop A first enters between the first upper rotator 11 and the first lower rotator 12, and as shown in Fig. 13, the impact units 11b and 11c of the first upper rotator 11. The impact portions 12b and 12c of the first lower rotating body 12 alternately and repeatedly hit the crop A, the real A2 is separated from the crop A, and falls onto the collection conveyor 10 (the configuration of the separation section described above). )reference).

  In this case, each of the first times T1 (refer to the above-described (rotational phases of the first upper rotator and the first lower rotator)) has the same length, so that the impact portion 11b of the first upper rotator 11 is formed. , 11c and the striking portions 12b, 12c of the first lower rotating body 12 hit the crop A alternately and repeatedly after a first time T1 of the same length.

As shown in FIGS. 3 and 4, the first upper rotator 11 and the first lower rotator 12 are arranged at an angle B <b> 1 with respect to the second transport member 9 (see the above-described (in the separation unit)). Arrangement of first upper rotator and first lower rotator and arrangement of second upper rotator and second lower rotator).
As shown in FIG. 13, the rotation direction C1 of the first upper rotator 11 and the rotation direction C2 of the first lower rotator 12 are set (as described above (the rotation of the first upper rotator and the first lower rotator). Direction, rotation direction of the second upper rotator and the second lower rotator).

  The hitting portions 11b and 11c of the first upper rotating body 11 and the hitting portions 12b and 11b of the first lower rotating body 12 are determined by the above-described inclined arrangement and the rotating directions C1 and C2 of the first upper rotating body 11 and the first lower rotating body 12. When 12c hits the crop A, it is attempted to pull out the crop A from the stock A1 side (the second carrier 9 side) to the upper side while the stock A1 of the crop A is held by the second carrier 9. Component force occurs. As a result, the crop A does not compress toward the root A1 and does not buckle and bend, and the real A2 is easily separated from the crop A.

(In the whole harvest flow of the green soybean harvester, the state at the separation unit (second upper rotating body and second lower rotating body))
In the separating section 5, the crop A then enters between the second upper rotator 21 and the second lower rotator 22, and as shown in FIGS. The striking portions 21b, 21c and the striking portions 22b, 22c of the second lower rotating body 22 alternately and repeatedly hit the crop A, and the actual A2 remaining in the crop A is separated without remaining and the recovery conveyor 10 (See the above (Configuration of Separation Unit)).

  In this case, since the second times T21 and T22 are shorter than the first time T1 (see the above-mentioned (rotational phases of the second upper rotating body and the second lower rotating body)), the hitting portion of the second upper rotating body 21 is used. The number of times that the striking portions 22b, 22c of the second lower rotator 22 hit the crop A is equal to the number of hitting portions 11b, 11c of the first upper rotator 11, and the lower striking portions 12b, 12c of the first lower rotator 12. It is more than the number of times A.

  Since each of the second times T21 and T22 has a different length, the second lower rotating body is not delayed after a short second time T21 after the hitting portion 21b of the second upper rotating body 21 hits the crop A. The 22 hitting portions 22b correspond to the crop A. Next, after a short time T22, the hitting portion 21c of the second upper rotating body 21 hits the crop A without delay after a short second time T21. Hit.

  As a result, the state in which the hitting portions 21b and 21c of the second upper rotating body 21 and the hitting portions 22b and 22c of the second lower rotating body 22 hit the crop A at the same time (a state in the short second time T21). can get.

As shown in FIGS. 3 and 4, the second upper rotator 21 and the second lower rotator 22 are arranged to be inclined at an angle B2 with respect to the second transport body 9 (as described above (in the separation unit)). Arrangement of first upper rotator and first lower rotator and arrangement of second upper rotator and second lower rotator).
As shown in FIGS. 14, 15, and 16, the rotation direction C1 of the second upper rotator 21 and the rotation direction C2 of the second lower rotator 22 are set (as described above (the first upper rotator and the first lower rotator). Rotation direction of rotating body, rotation direction of second upper rotating body and second lower rotating body).

  The hitting portions 21b and 21c of the second upper rotating body 21 and the hitting portions 22b and 21b of the second lower rotating body 22 depend on the inclined arrangement and the rotation directions C1 and C2 of the second upper rotating body 21 and the second lower rotating body 22 described above. When 22c hits the crop A, in a state where the stock A1 of the crop A is held by the second carrier 9, the crop A is pulled out from the stock A1 side (the second carrier 9 side) toward the upper side. Component force occurs. As a result, the crop A does not compress toward the root A1 and does not buckle and bend, and the real A2 is easily separated from the crop A.

(In the entire harvest flow of the soybean harvester, the state of the recovery conveyor, transport conveyor, and discharge conveyor at the separation unit)
As shown in FIGS. 1, 2, and 3, the real A2 is separated from the crop A by the first upper rotator 11, the first lower rotator 12, the second upper rotator 21, and the second lower rotator 22, and separated. The collected fruit A2 falls onto the collection conveyor 10. When the fruit A2 is separated from the crop A, debris such as leaves are also separated and fall onto the recovery conveyor 10. The crop A from which the actual A2 has been separated is discharged from the transfer end portion 9b of the second transfer body 9 to the field.

  The collection conveyor 10 is rotationally driven toward the rear side, and the actual A2 and debris that have fallen on the collection conveyor 10 are conveyed to the rear side by the collection conveyor 10 and fall from the rear part of the collection conveyor 10 to the conveyor 14.

The transport wind of Karino 16 flows from the lower side of the recovery conveyor 10 to the rear side, passes between the recovery conveyor 10 and the discharge conveyor 15, and flows above the discharge conveyor 15 to the rear side.
When the real A2 and the refuse fall from the rear part of the recovery conveyor 10, the real A2 falls on the transport conveyor 14 against the transport wind of Karino 16. The debris is blown off by the transport wind of Karino 16 and rides on the discharge conveyor 15, and the debris on the discharge conveyor 15 is transported rearward by the discharge conveyor 15 and discharged to the field.

  The transport conveyor 14 is driven to rotate toward the support 6, and a number of collection boxes 17 are placed on the support 6. The actual A2 that has dropped onto the transport conveyor 14 is transported by the transport conveyor 14 to the support base 6 side, and is put into a collection box 17 located at the transport end of the transport conveyor 14. The auxiliary worker of the work deck 7 replaces the empty collection box 17 when the collection box 17 located at the transport end of the transport conveyor 14 becomes full.

(First Embodiment of the Invention)
The first interval changing section 41 may be provided on the first lower rotating body 12, and the second interval changing section 42 may be provided on the first upper rotating body 11 as described above.
As described above, the first interval changing unit 41 may be provided on the first upper rotator 11, and the second interval changing unit 42 may be provided on the first lower rotator 12 (wall portion 54).
Both the first interval changing unit 41 and the second interval changing unit 42 may be provided in the first lower rotating body 12.
The second interval changing unit 42 may be abolished and the first interval changing unit 41 may be provided, or the first interval changing unit 41 may be abolished and the second interval changing unit 42 provided. You may.

(Second Alternative Embodiment of the Invention)
The first interval changing unit 51 may be provided on the second lower rotating body 22, and the second interval changing unit 52 may be provided on the second upper rotating body 21 as described above.
As described above, the first interval changing section 51 may be provided on the second upper rotating body 21, and the second interval changing section 52 may be provided on the second lower rotating body 22 (wall portion 54).
Both the first interval changing unit 51 and the second interval changing unit 52 may be provided on the second lower rotating body 22.
The second interval changing unit 52 may be abolished and the first interval changing unit 51 may be provided. The first interval changing unit 51 may be abolished and the second interval changing unit 52 may be provided. You may.

(Third alternative embodiment of the invention)
In the first upper rotating body 11, only one hitting portion 11b may be provided, or three or more hitting portions 11b and 11c may be provided.
In the first lower rotating body 12, only one hitting portion 12b may be provided, or three or more hitting portions 12b and 12c may be provided.
In the second upper rotating body 21, only one hitting portion 21b may be provided, or three or more hitting portions 21b and 21c may be provided.
In the second lower rotating body 22, only one hitting portion 22b may be provided, or three or more hitting portions 22b and 22c may be provided.

(Fourth embodiment of the invention)
In the first upper rotator 11 and the first lower rotator 12, the rotation phases of the hitting portions 11b and 11c of the first upper rotator 11 and the rotation phases of the hitting portions 12b and 12c of the first lower rotator 12 The angle may be set to be different at an angle slightly larger than 90 degrees and an angle slightly smaller than 90 degrees. According to this configuration, a plurality of first times T1 having slightly different lengths occur.

(Fifth alternative embodiment of the invention)
The portion of the first upper rotating body 11 and the first lower rotating body 12 on the side of the second transport body 9 is larger than the portions of the first upper rotating body 11 and the first lower rotating body 12 on the opposite side of the second transport body 9. The first upper rotating body 11 and the first lower rotating body 12 (the first upper shaft center P11 and the first lower shaft center P12) so as to be located on the side of the transport end portion 9b (rear side) of the second transport body 9. May be arranged so as to be inclined (intersecting) in plan view with respect to the second transport body 9.

  According to this configuration, the striking portions 11 b and 11 c of the first upper rotating body 11 and the striking portions 12 b and 12 c of the first lower rotating body 12 are formed between the first upper rotating body 11 and the first lower rotating body 12. The rotation direction C1 of the first upper rotator 11 and the rotation direction C2 of the first lower rotator 12 may be set so as to move to the side of the transport end portion 9b of the second transporter 9.

(Sixth alternative embodiment of the invention)
The portion of the second upper rotating body 21 and the second lower rotating body 22 on the side of the second transport body 9 is larger than the portion of the second upper rotating body 21 and the second lower rotating body 22 on the opposite side of the second transport body 9. The second upper rotating body 21 and the second lower rotating body 22 (the second upper shaft center P21 and the second lower shaft center P22) so as to be located on the side of the transport end portion 9b (rear side) of the second transport body 9. May be arranged so as to be inclined (intersecting) in plan view with respect to the second transport body 9.

  According to this configuration, the striking portions 21 b and 21 c of the second upper rotating body 21 and the striking portions 22 b and 22 c of the second lower rotating body 22 are formed between the second upper rotating body 21 and the second lower rotating body 22. The rotation direction C1 of the second upper rotator 21 and the rotation direction C2 of the second lower rotator 22 may be set so as to move to the side of the transport end portion 9b of the second transporter 9.

(Seventh alternative embodiment of the invention)
3, 7, 8, and 12, the power of the transmission shaft 28 may be transmitted to the drive shaft 71 via the transmission belt 34.

The transmission gears 70a and 71a are provided not on the drive shafts 70 and 71 but on the drive shafts 72 and 73 so that the power of the transmission shaft 28 is transmitted to the drive shaft 71 or the drive shaft 73 via the transmission belt 34. May be.
According to this configuration, the power of the drive shaft 72 may be transmitted to the drive shaft 70 via the transmission chain 74, and the power of the drive shaft 73 may be transmitted to the drive shaft 71 via the transmission chain 75.

(Eighth Alternative Embodiment of the Invention)
The harvesting unit 3 (first transport body 8), the second transport body 9, and the guide rail 13 may be provided at the right front part of the body 1. According to this configuration, the separation unit 5 is provided on the left side of the second transport body 12 and the guide rail 13.

  The present invention can be applied not only to a soybean harvester but also to a crop harvester that harvests a crop A such as soybeans. Instead of extracting the crop A in the field, the vicinity of the root A1 of the crop A in the field is removed. The present invention can also be applied to a crop harvester that cuts a crop A and harvests the crop A while leaving the root in the field.

Reference Signs List 3 Harvesting part 5 Separation part 9 Carrier 11 First upper rotating body (upper rotating body)
12 1st lower rotating body (lower rotating body)
21 Second upper rotating body (upper rotating body)
22 2nd lower rotating body (lower rotating body)
41, 51 1st interval change part (interval change part)
42, 52 Second interval change unit (interval change unit)
40, 54, 58a Wall 44 Wall 71, 73 Drive shaft 77 Universal joint 78 Transmission shaft 53 Cover 83 Bearing A A crop A1 Stockholder A2 Actual P11 First upper core (upper core)
P12 1st lower shaft core (lower shaft core)
P21 2nd upper shaft core (upper shaft core)
P22 2nd lower shaft core (lower shaft core)

Claims (10)

A harvesting unit for harvesting crops in the field,
A crop that is harvested by the harvesting unit, and a transport body that transports the rear side while holding the stock in a sideways posture,
A separation unit disposed on the right or left side of the carrier,
In the separation unit, an upper rotating body that is driven to rotate around an upper axis in a direction intersecting with the transport body in plan view, and around a lower axis along the upper axis below the upper axis. A lower rotating body that is driven to rotate is provided,
The crop conveyed by the carrier passes between the upper rotator and the lower rotator, and the crop is hit by the upper rotator and the lower rotator, whereby fruits are separated from the crop,
A crop harvester including an interval changing unit that changes a vertical interval between the upper rotator and the lower rotator.   The interval changing unit changes the position of a portion of the upper rotating body or the lower rotating body on the opposite side of the transport body up and down, and changes an inclination angle of the upper rotating body or the lower rotating body in a vertical direction. The crop harvester according to claim 1, wherein the vertical interval is changed by changing. On the opposite wall portion of the transporting body in the separation unit, a portion of the upper rotating body and the lower rotating body on the opposite side of the transporting body is rotatably supported,
The crop harvester according to claim 2, wherein the interval changing unit is provided on a wall of the separation unit opposite to the transport body. A operable cover is provided at a closed position that covers the upper side of the separation unit and an open position that opens the upper side of the separation unit,
The interval changing unit changes the vertical interval by changing the position of the upper rotating body on the opposite side of the transport body up and down, and changing the inclination angle of the upper rotating body in the vertical direction. The crop harvester according to claim 2 or 3, wherein   The crop harvester according to claim 4, wherein the interval changing unit vertically changes a position of a bearing unit that rotatably supports a portion of the upper rotating body opposite to the transport body. A first interval changing unit and a second interval changing unit are provided,
The first interval changing unit changes the position of a portion of the upper rotating body or the lower rotating body on the opposite side of the transport body up and down, and moves the upper rotating body or the lower rotating body in a vertical direction. By changing the inclination angle, the vertical interval is changed,
The second interval changing unit changes the position of a portion of the upper rotating body or the lower rotating body on the side of the transport body up and down, and changes an inclination angle of the upper rotating body or the lower rotating body in a vertical direction. The crop harvester according to claim 1, wherein the vertical interval is changed by changing. On the opposite wall portion of the transporting body in the separation unit, a portion of the upper rotating body and the lower rotating body on the opposite side of the transporting body is rotatably supported,
The first interval changing unit is provided on a wall of the separation unit opposite to the transport body,
A portion of the upper rotator and the lower rotator on a side of the carrier is rotatably supported on a wall of the separator on the side of the carrier,
The crop harvester according to claim 6, wherein the second interval changing unit is provided on a wall of the separation unit on the side of the transporting body. A operable cover is provided at a closed position that covers the upper side of the separation unit and an open position that opens the upper side of the separation unit,
The first interval changing unit changes the position of a portion of the upper rotating body on the opposite side of the transport body up and down, and changes the inclination angle of the upper rotating body in the up-down direction, thereby changing the vertical direction. Change the interval,
The second interval changing unit changes the vertical interval by changing the position of the portion of the upper rotator on the transport body side up and down and changing the inclination angle of the upper rotator in the vertical direction. The crop harvester according to claim 6 or 7, wherein The first interval changing unit changes the position of a bearing unit that rotatably supports a portion of the upper rotating body on the opposite side of the transport body up and down,
9. The crop harvester according to claim 8, wherein the second interval changing unit changes the position of a bearing unit that rotatably supports a portion of the upper rotating body on the side of the transport body up and down. 10. A drive shaft to which power is transmitted is provided, and a transmission shaft is connected to the drive shaft via a universal joint,
A portion of the upper rotating body on the opposite side of the transport body and the transmission shaft are connected via a universal joint,
The crop harvester according to any one of claims 4, 5, 8, and 9, wherein the power of the drive shaft is transmitted to the upper rotating body via the transmission shaft.

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