CN112640653A - Crop harvester - Google Patents

Abstract

The crop harvester comprises left and right first carriers (11) and 2 nd carriers (12), wherein the left and right first carriers (11) clamp and lift crops (A) in a field from the left and right sides, the lifted crops (A) are conveyed to the rear side of the inclined upper side while maintaining the standing posture, and the 2 nd carriers (12) convey the trunk (A1) of the crops (A) in the horizontal posture to the rear side. The device is provided with a posture changing part (62), the posture changing part (62) changes the posture of the crop (A) from the conveying terminal end part of the first conveying body (11) into a horizontal posture that the part with the fruit of the crop (A) is closer to the separation part (5) relative to the trunk (A1) of the crop (A), and the trunk (A1) of the crop (A) with the posture changed into the horizontal posture is held on the second conveying body (12).

Description

Crop harvester

Technical Field

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

Background

[ background art 1]

Some green soybean harvesters, which are an example of crop harvesters, have a structure as disclosed in patent document 1. Patent document 1 includes left and right 1 st carriers for holding a crop in a field from left and right sides, lifting the crop from the field and carrying the crop to the rear side, a2 nd carrier for holding a trunk of the crop in a horizontal posture and carrying the crop to the rear side, and a separating section for separating a fruit from the crop carried by the 2 nd carrier.

Thus, in patent document 1, the crop in the standing posture of the field is gripped and lifted by the 1 st carrier, and the posture of the crop gradually changes to the lying posture while being carried by the 1 st carrier.

At the conveyance termination end portion of the 1 st conveyance body, the crop assumes a horizontal posture, and the crop in the horizontal posture is handed over from the conveyance termination end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body. The crop is conveyed to the rear side in a horizontal posture by the 2 nd conveying body, the fruit is separated from the crop by the separating part while the crop is conveyed by the 2 nd conveying body, and the separated fruit is collected.

According to patent document 1, the conveyance starting end portion of the 1 st conveyance body is rotationally driven around the vertical axis, and the crop in the field standing posture is sandwiched by the 1 st conveyance body. The conveyance end section of the 1 st conveyance body is rotationally driven around the axis in the left-right direction, and the posture of the crop is changed to a horizontal posture at the conveyance end section of the 1 st conveyance body.

Thus, the conveyance starting end portion and the conveyance ending end portion of the 1 st conveyance body are in a state in which the axes of the 1 st conveyance body rotationally driven are orthogonal, and the 1 st conveyance body is in a state in which it is twisted from the conveyance starting end portion to the conveyance ending end portion.

[ background art 2]

Some green soybean harvesters, which are an example of crop harvesters, have a structure as disclosed in patent document 1. In patent document 1, the present invention is provided with left and right 1 st carriers, 2 nd carriers, and a separating section, wherein the left and right 1 st carriers hold crops in a field from left and right sides, lift the crops from the field, and carry the crops to the rear side, the 2 nd carrier holds the trunk of the crops in a horizontal posture, and carries the crops to the rear side, and the separating section separates fruits from the crops carried by the 2 nd carrier.

Thus, in patent document 1, the crop in the standing posture of the field is gripped and lifted by the 1 st conveyance body at the harvesting portion, and the posture of the crop gradually changes to the horizontal posture while being conveyed by the 1 st conveyance body.

At the conveyance termination end portion of the 1 st conveyance body, the crop assumes a horizontal posture, and the crop in the horizontal posture is handed over from the conveyance termination end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body. The crop is conveyed to the rear side in a horizontal posture by the 2 nd conveying body, the fruit is separated from the crop by the separating part while the crop is conveyed by the 2 nd conveying body, and the separated fruit is collected.

According to patent document 1, the conveyance starting end portion of the 1 st conveyance body is rotationally driven around the vertical axis at the harvesting portion, and the crop in the field in the standing posture is sandwiched between the 1 st conveyance bodies. The conveyance end section of the 1 st conveyance body is rotationally driven around the axis in the left-right direction, and the posture of the crop is changed to a horizontal posture at the conveyance end section of the 1 st conveyance body.

Thus, the conveyance starting end portion and the conveyance ending end portion of the 1 st conveyance body are in a state in which the axes of the 1 st conveyance body rotationally driven are orthogonal, and the 1 st conveyance body is in a state in which it is twisted from the conveyance starting end portion to the conveyance ending end portion.

[ background art 3]

Some green soybean harvesters, which are an example of crop harvesters, have a structure as disclosed in patent document 1. Patent document 1 discloses a harvester for harvesting a crop in a field, a carrier for holding the crop harvested by the harvester in a horizontal posture and carrying the crop to the rear side, and a separating unit disposed on the right side of the carrier.

In patent document 1, a rotating body that is rotationally driven around an axial center in a direction intersecting the conveyance body in a plan view is provided in the separation section. When the crop is conveyed by the conveyance body, the rotating body collides with the crop, and the fruit is separated from the crop and collected.

Patent document 1: japanese patent laid-open No. 2000-201519.

Disclosure of Invention

[ problem 1]

The problem with respect to [ background art 1] is as follows.

In patent document 1, when a crop is conveyed by the 1 st conveyance body, the posture of the crop is changed from the standing posture to the lying posture while the crop is conveyed to the rear side, and therefore, there is a possibility that the crop is not stably gripped and conveyed by the 1 st conveyance body.

As described above, when the crop is gripped and conveyed by the 1 st conveyance body, rollers, guides, and the like for supporting the gripped portion of the crop on the 1 st conveyance body from the opposite side of the crop are required to reliably grip the crop.

However, as in patent document 1, if the 1 st carrier is twisted from the start end to the end of the transport, it is difficult to provide the rollers, guides, and the like. If the number of rollers, guides, and the like is small (cannot be provided), the pinching and conveyance of the crop by the 1 st conveyance body may not be stably performed.

The invention aims to stably clamp and convey crops based on a1 st conveying body in a crop harvester provided with the 1 st conveying body, a2 nd conveying body and a separating part.

[ problem 2]

The problem with respect to [ background art 2] is as follows.

In patent document 1, in the harvesting unit, when the crop is conveyed by the 1 st conveyance body, the crop is conveyed to the rear side and the posture of the crop is changed from the standing posture to the lying posture, so that the crop is not stably gripped and conveyed by the 1 st conveyance body.

As described above, when the crop is gripped and conveyed by the 1 st conveyance body at the harvesting unit, rollers, guides, and the like for supporting the gripped portion of the crop by the 1 st conveyance body from the opposite side of the crop are required to ensure gripping of the crop.

However, as in patent document 1, if the 1 st carrier is twisted from the start end to the end of the transport, it is difficult to provide the rollers, guides, and the like. If the number of rollers, guides, and the like is small (cannot be provided), the pinching and conveyance of the crop by the 1 st conveyance body may not be stably performed.

The object of the present invention is to stably clamp and convey a crop based on a1 st conveying body in a crop harvester having a harvesting part with the 1 st conveying body, a2 nd conveying body and a separating part.

[ problem 3]

The problem with respect to [ background art 3] is as follows.

In patent document 1, when the fruit is separated and collected from the crop, a large separating action is performed from the rotating body to the upper part of the crop (the part with the fruit) in a state where the trunk of the crop is sandwiched by the carrier.

Thus, for example, in a crop having a weak stem such as a stem, the stem of the crop may be bent, and when the stem of the crop is bent, the posture of the crop is changed from the horizontal posture, for example, largely downward, and the rotating body may not appropriately collide with the crop, and the fruit may not be appropriately separated from the crop.

The invention aims to improve the separation performance of separating fruits from crops by a separation part in a crop harvester, wherein the trunk of the crops harvested by a harvesting part is clamped by a carrier in a horizontal posture, the crops are carried by the carrier in a horizontal posture, and the fruits are separated from the crops by the separation part for collection.

The solution corresponding to [ problem 1] is as follows.

The crop harvester of the present invention is characterized in that it comprises a left and right 1 st conveyance body, a2 nd conveyance body, and a separation part, wherein the left and right 1 st conveyance body is rotationally driven around an axial center in an oblique vertical direction to lift a crop in a field from the field while sandwiching the crop from the left and right sides, and conveys the lifted crop to a rear side of an oblique upper side while maintaining an upright posture, the 2 nd conveyance body is rotationally driven around an axial center in a left and right direction to hold a trunk of the crop in a horizontal posture and conveys the crop to the rear side, the separation part is disposed on the right or left side of the 2 nd conveyance body to separate the fruit from the crop conveyed by the 2 nd conveyance body, and the separation part is provided with a posture changing part which changes a posture of the crop from a conveyance terminal end part of the 1 st conveyance body to a horizontal posture in which a part of the crop with the fruit is closer to the separation part relative to the trunk of the crop, the trunk of the crop whose posture is changed to the horizontal posture is held by the 2 nd carrier.

According to the present invention, the crop in the standing posture in the field is gripped between the left and right first carriers from the left and right sides and lifted from the field, and the crop is carried to the rear side while maintaining the standing posture.

When the standing crop reaches the conveyance end portion of the 1 st conveyance body, the standing crop is changed to a horizontal posture at a transfer portion from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body, and transferred to the conveyance start end portion of the 2 nd conveyance body.

The crop whose posture is changed to the horizontal posture is conveyed by the 2 nd conveying body, and the fruit is separated from the crop conveyed by the 2 nd conveying body by the separation part, and the separated fruit is collected.

As described above, according to the present invention, since the crop in the standing posture of the field is lifted from the field by the 1 st carrier and then conveyed to the rear side while maintaining the standing posture, the pinching and conveying of the crop by the 1 st carrier are stably performed. This can improve the harvesting performance of the crop harvester.

According to the present invention, since the 1 st carrier does not twist from the transport start end portion to the transport end portion, the nip portion of the crop on the 1 st carrier can be easily provided as a roller, a guide, or the like supported from the opposite side of the crop. In this respect, the 1 st carrier is advantageous in that the crop can be stably gripped and carried.

When the posture of the standing crop is changed to the horizontal posture at a transfer section from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body and the crop is transferred to the conveyance start end portion of the 2 nd conveyance body, the present invention includes a posture changing section for changing the posture of the standing crop to the horizontal posture.

Thus, the crop in the standing posture is easily changed to the horizontal posture and transferred to the conveyance starting end portion of the 2 nd conveying body, and the crop is smoothly transferred from the conveyance ending end portion of the 1 st conveying body to the conveyance starting end portion of the 2 nd conveying body, so that the harvesting performance of the crop harvester can be improved.

In the present invention, it is preferable that the posture changing section is disposed at a position that is located above the conveyance terminal end section of the 1 st conveyance body and is spaced rearward from the conveyance terminal end section of the 1 st conveyance body.

According to the present invention, when a crop is delivered from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body, the posture changing portion acts on a portion of the crop located above the conveyance terminal end portion of the 1 st conveyance body, and the crop in the standing posture is easily changed in posture to the lying posture by the posture changing portion.

In the present invention, it is preferable that the posture changing section is disposed obliquely upward in a side view from a position above the conveyance terminal end section of the 1 st conveyance body.

The 1 st carrier is configured to carry the crop obliquely to the upper rear side while maintaining the standing posture, so that according to the present invention, the posture changing unit can be made to act on the crop according to the flow of carrying the crop by the 1 st carrier, and the standing posture of the crop can be easily changed to the lying posture by the posture changing unit.

In the present invention, it is preferable that the posture changing section overlaps with a conveyance starting end section of the 2 nd conveyance body in a plan view.

According to the present invention, the posture changing unit also acts on the crop during the transfer from the crop to the conveyance start end of the 2 nd conveyance body, and the posture of the crop in the standing posture is easily changed to the landscape posture by the posture changing unit.

In the present invention, it is preferable that a stem guide for guiding a stem of a crop toward the conveyance starting end side of the 2 nd conveyance body is provided at a position between the conveyance ending end side of the 1 st conveyance body and the posture changing portion in a side view.

According to the present invention, when a crop is transferred from the conveyance terminal end of the 1 st conveyance body to the conveyance start end of the 2 nd conveyance body, the stem of the crop is guided to the conveyance start end of the 2 nd conveyance body by the stem guide, and therefore, the trunk of the crop is less likely to be separated from the conveyance start end of the 2 nd conveyance body.

This improves the reliability of holding the trunk of the crop by the conveyance starting end portion of the 2 nd conveyance body, and allows smooth transfer of the crop from the conveyance end portion of the 1 st conveyance body to the conveyance starting end portion of the 2 nd conveyance body, thereby improving the harvesting performance of the crop harvester.

In the present invention, it is preferable that an upper guide portion for guiding an upper portion of the crop to the conveyance starting end portion side of the 2 nd conveyance body is provided at a position above the posture changing portion in a side view.

According to the present invention, when a crop is delivered from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body, the posture changing portion acts on the upper portion from the conveyance terminal end portion of the 1 st conveyance body of the crop, and the upper guide portion acts on the upper portion of the posture changing portion of the crop, so that the crop in the standing posture is easily changed in posture to the lying posture by the posture changing portion and the upper guide portion.

In the present invention, it is preferable that the posture changing section includes a guide section, a ring-shaped rotating body, and a claw body, the guide section is disposed to be inclined from a conveyance terminal end of the 1 st conveyance body to a conveyance start end of the 2 nd conveyance body in a plan view, the ring-shaped rotating body is rotationally driven around an axis in a vertical direction and moves from the conveyance terminal end of the 1 st conveyance body to the conveyance start end of the 2 nd conveyance body along the guide section, and the claw body is attached to the ring-shaped rotating body at a predetermined interval in a moving direction of the ring-shaped rotating body, and the claw body pushes the crop from the conveyance terminal end of the 1 st conveyance body to the conveyance start end of the 2 nd conveyance body along with the rotation of the ring-shaped rotating body.

According to the present invention, the claw body (annular rolling body) of the posture changing section moves along the guide section, whereby the crop is pushed and operated from the conveyance terminal end side of the 1 st conveyance body to the conveyance starting end side of the 2 nd conveyance body, and the crop in the standing posture is changed to the landscape posture by the guide section of the posture changing section.

Thus, when the crop is delivered from the conveyance terminal end portion of the 1 st conveyance body to the conveyance starting end portion of the 2 nd conveyance body, the crop does not stay in the posture changing section, and the posture of the crop in the standing posture can be easily changed to the lying posture by the posture changing section.

In the present invention, it is preferable that the apparatus further includes a distribution transmission unit, a lower transmission shaft, and an upper transmission shaft, the distribution transmission unit is disposed between the conveyance terminal end of the 1 st conveyance body and the posture changing unit, the transmission unit transmits power to the distribution transmission unit from an outer position with respect to a portion where the 1 st conveyance body sandwiches the crop, the lower transmission shaft transmits the power transmitted to the distribution transmission unit to the 1 st conveyance body located on a lower side of the distribution transmission unit, and the upper transmission shaft transmits the power transmitted to the distribution transmission unit to the posture changing unit located on an upper side of the distribution transmission unit.

According to the present invention, when the posture changing section is disposed at a position above the conveyance terminal end section of the 1 st conveyance body, the space between the posture changing section and the conveyance terminal end section of the 1 st conveyance body is effectively used, and the transmission system to the posture changing section and the 1 st conveyance body can be disposed compactly, which is advantageous in terms of simplification of the structure of the transmission system.

According to the present invention, the transmission system is disposed above the conveyance terminal end of the 1 st conveyance body, and the transmission system is not disposed below the conveyance terminal end of the 1 st conveyance body.

Thus, the transmission system is not disposed in the vicinity of the trunk of the crop at the position where the standing crop is changed in posture to the lying posture, so that the standing crop is easily changed in posture to the lying posture by the posture changing unit.

The crop harvester of the present invention is characterized in that it comprises a left and right 1 st conveyance body, a2 nd conveyance body, a guide rail, wherein the left and right 1 st conveyance body is rotationally driven around an axis in an oblique up-down direction to lift a crop in a field from the field in a left and right side grip manner, and conveys the lifted crop to a rear side of an oblique upper side while maintaining a standing posture, the 2 nd conveyance body is rotationally driven around an axis in a left-right direction to project rearward from a conveyance terminal end portion of the 1 st conveyance body, the guide rail projects rearward from an upper side of the 2 nd conveyance body, a trunk of the crop which is changed from the conveyance terminal end portion posture of the 1 st conveyance body to a horizontal posture is gripped between the 2 nd conveyance body and the guide rail and conveyed rearward by the 2 nd conveyance body, and the separation portion is disposed on a right side or a left side of the 2 nd conveyance body, the fruit is separated from the crop transported by the 2 nd transporting body, and the 2 nd transporting body is configured so that the left and right central parts of the transportation start end part of the 2 nd transporting body are shifted to a position closer to the separation part in a plan view relative to an imaginary line extending in the transporting direction of the 1 st transporting body from the mutually oppositely contacted parts of the left and right 1 st transporting bodies.

According to the present invention, the left and right 1 st conveyance bodies sandwich the crop in the standing posture in the field from the left and right sides and lift the crop from the field, and convey the crop to the rear side while maintaining the standing posture.

When the standing crop reaches the conveyance end portion of the 1 st conveyance body, the standing crop is changed to the horizontal posture at the transfer portion from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body and transferred to the conveyance start end portion of the 2 nd conveyance body.

The crop whose posture is changed to the horizontal posture is conveyed by the 2 nd conveying body, and the fruit is separated by the separating part from the crop conveyed by the 2 nd conveying body, and the separated fruit is collected.

As described above, according to the present invention, since the crop in the standing posture of the field is lifted from the field by the 1 st carrier, the crop is carried to the rear side while maintaining the standing posture, and the pinching and carrying of the crop by the 1 st carrier are stably performed. This can improve the harvesting performance of the crop harvester.

According to the present invention, since the 1 st carrier does not twist from the transport start end portion to the transport end portion, rollers, guides, and the like for supporting the crop nip portion of the 1 st carrier from the opposite side of the crop can be easily provided. In this respect, the 1 st carrier is advantageous in that the crop can be stably gripped and carried.

According to the present invention, the guide rail extends along the upper side of the 2 nd carrier with respect to the 2 nd carrier which is rotationally driven around the axis in the left-right direction, and the trunk of the crop in the horizontal posture is held between the 2 nd carrier and the guide rail, and the crop is carried by the 2 nd carrier.

According to the present invention, the 2 nd carrier is disposed to be slightly displaced toward a side closer to the separating portion (the separating portion side) with respect to a portion of the left and right 1 st carriers which are in contact with each other in an opposed manner.

Thus, the 2 nd carrier does not separate from the trunk of the crop in the left-right direction with respect to the crop whose posture is changed from the carrying terminal end portion of the 1 st carrier to the separating portion side to the horizontal posture, and the reliability of clamping the trunk of the crop by the 2 nd carrier and the guide rail can be improved.

In the present invention, it is preferable that a side surface of the guide rail closer to the separating portion is disposed between a side surface of the 2 nd carrier closer to the separating portion and a side surface farther from the separating portion in a plan view, and a side surface of the guide rail farther from the separating portion is disposed farther from the separating portion with respect to a side surface of the 2 nd carrier farther from the separating portion in a plan view.

According to the present invention, the upper guide rail is displaced to a side farther from the separation portion (opposite side to the separation portion) with respect to the lower 2 nd carrier.

Thus, even if the crop is in an inclined posture in which the upper portion of the crop is located at a slightly higher position with respect to the trunk of the crop at the transfer section from the conveyance terminal end section of the 1 st carrier to the conveyance start end section of the 2 nd carrier, the upper guide rail is displaced to a side away from the upper portion of the crop than the lower 2 nd carrier, whereby the trunk of the crop in the inclined posture is easily clamped between the 2 nd carrier and the guide rail, and the reliability of clamping the trunk of the crop by the 2 nd carrier and the guide rail can be improved.

In the present invention, it is preferable that the conveyance terminal end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body are arranged so as to overlap in a plan view, the conveyance start end portion of the 2 nd conveyance body is arranged at a position below the conveyance terminal end portion of the 1 st conveyance body in a side view, and the conveyance start end portion of the guide rail is arranged at a position behind the conveyance terminal end portion of the 1 st conveyance body.

According to the present invention, since the conveyance terminal end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body overlap in a plan view and the conveyance start end portion of the 2 nd conveyance body is disposed at a position below the conveyance terminal end portion of the 1 st conveyance body in a side view, when the crop is handed over from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body, the crop can be brought into contact with both of the conveyance terminal end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body. This improves the reliability of transferring the crop from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body.

In this case, according to the present invention, since the conveyance starting end portion of the guide rail is disposed at a position on the rear side of the conveyance end portion of the 1 st conveyance body, the conveyance end portion of the 1 st conveyance body and the conveyance starting end portion of the 2 nd conveyance body can be easily disposed as described above while avoiding contact between the conveyance end portion of the 1 st conveyance body and the conveyance starting end portion of the guide rail.

In the present invention, it is preferable that the plant trunk guide portion is provided along a side surface of the 2 nd carrier on a side farther from the separation portion at a transport start end portion of the 2 nd carrier, and prevents the plant trunk of the crop from separating from the transport start end portion of the 2 nd carrier.

As described above, if the conveyance start end portion of the guide rail is disposed at the position on the rear side of the conveyance end portion of the 1 st conveyance body, a portion where the guide rail does not exist is generated at the conveyance start end portion of the 2 nd conveyance body.

According to the present invention, since the trunk guide portion prevents the trunk of the crop from separating from the conveyance start end portion of the 2 nd carrier at the conveyance start end portion of the 2 nd carrier, the trunk, which is transferred from the crop to the conveyance start end portion of the 2 nd carrier and is connected to the crop, is held between the 2 nd carrier and the guide rail, and the conveyance of the crop can be stabilized.

According to the present invention, since the trunk guide portion is disposed along the side surface of the 2 nd carrier on the side farther from the separating portion, the trunk guide portion does not become an obstacle when the crop is changed to the horizontal posture toward the separating portion.

In the present invention, it is preferable that the trunk support portion that guides the trunk of the crop from the lower side to the rear side is disposed at a position farther from the separation portion in a plan view with respect to the conveyance starting end portion of the 2 nd conveyance body.

According to the present invention, when the crop is changed to the horizontal posture toward the separating unit, the trunk of the crop can be received by the trunk support portion without falling, so that the change of the posture of the crop to the horizontal posture is promoted, and the reliability of the transfer of the crop from the conveyance terminal end portion of the 1 st conveyance body to the conveyance starting end portion of the 2 nd conveyance body can be improved.

The solution corresponding to [ problem 2] is as follows.

The crop harvester of the present invention is characterized in that it comprises a machine body, a harvesting part, and a2 nd conveyance body, wherein the machine body is supported by a traveling device, the harvesting part has a left and right 1 st conveyance body, the left and right 1 st conveyance body is rotationally driven around an axial center in an oblique up-down direction to lift a crop in a field from the field while sandwiching the crop between the left and right sides, and conveys the lifted crop to a rear side of an oblique upper side while maintaining an upright posture, the 2 nd conveyance body is rotationally driven around an axial center in a left-right direction to hold a trunk of the crop in a horizontal posture and conveys the trunk to the rear side, the trunk of the crop which is changed from a posture at a conveyance terminal end of the 1 st conveyance body to the horizontal posture is held by the 2 nd conveyance body and conveyed to the rear side by the 2 nd conveyance body, and the harvester comprises a separation part which is disposed on the right side or the left side of the 2 nd conveyance body to separate the fruit from the crop conveyed by the 2 nd conveyance body, the harvesting device is provided with a swing fulcrum part, a swing supporting part and a lifting mechanism, wherein the swing fulcrum part is connected with the upper part of the rear part of the harvesting part and extends upwards, the swing supporting part is connected with the machine body and supports the swing fulcrum part in a manner of freely swinging up and down around a supporting axis in the left-right direction, and the lifting mechanism is connected to the harvesting part and the machine body in a spread manner and lifts the harvesting part.

According to the present invention, the crops in the standing posture in the field are sandwiched from the left and right sides and lifted from the field by the left and right 1 st conveyance bodies in the harvesting section, and the crops are conveyed to the rear side while being maintained in the standing posture.

When the standing crop reaches the conveyance end portion of the 1 st conveyance body, the standing crop is changed to the horizontal posture at the transfer portion from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body and transferred to the conveyance start end portion of the 2 nd conveyance body.

The crop whose posture is changed to the horizontal posture is conveyed by the 2 nd conveying body, the fruit is separated from the crop conveyed by the 2 nd conveying body in the separating part, and the separated fruit is collected.

As described above, according to the present invention, in the harvesting section, the crop in the standing posture of the field is lifted from the field by the 1 st carrier, and then the crop is carried to the rear side while being maintained in the standing posture, so that the pinching and carrying of the crop by the 1 st carrier are stably performed. This can improve the harvesting performance of the crop harvester.

According to the present invention, since the 1 st carrier does not twist from the transport start end portion to the transport end portion in the harvesting portion, rollers, guides, and the like for supporting the crop nip portion of the 1 st carrier from the opposite side of the crop can be easily provided. In this respect, the 1 st carrier is advantageous in that the crop can be stably gripped and carried.

A crop harvester is provided with a lifting mechanism for lifting and lowering a harvesting part by supporting the harvesting part on a machine body in a freely lifting and lowering manner, and the harvesting part is lifted and operated, thereby turning and road traveling on a field can be easily performed.

According to the present invention, the harvesting unit is in a state of swinging up and down about the support axis spaced upward from the rear portion of the harvesting unit, and in a state of being lifted and lowered by the lifting mechanism. The crop is conveyed to the obliquely upper rear side by the first conveying body 1, and thus the harvesting part is arranged in an inclined posture with a lower front part and a higher rear part in a side view in a state that the harvesting part is lowered.

Thus, in a state where the reinforced harvesting section lowering operation is performed, the positional relationship between the conveyance end section of the 1 st conveyance body and the conveyance start section of the 2 nd conveyance body may be appropriately set.

According to the present invention, in the above-described state, when the harvesting unit is lifted, the harvesting unit swings upward around the support axis that is separated upward from the rear portion of the harvesting unit, and the rear portion of the harvesting unit (the conveyance end portion of the 1 st conveyance body) is thereby separated forward from the conveyance start end portion of the 2 nd conveyance body.

When the harvesting unit is lowered, the harvesting unit swings downward around the support axis spaced upward from the rear portion of the harvesting unit, the rear portion of the harvesting unit (the conveyance end portion of the 1 st conveyance body) moves rearward and approaches the conveyance start end portion of the 2 nd conveyance body, and the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body return to the appropriate positional relationship.

As described above, according to the present invention, the rear portion of the harvesting unit (the conveyance end portion of the 1 st conveyance body) and the conveyance start end portion of the 2 nd conveyance body are prevented from coming into contact with each other, and the appropriate positional relationship between the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body is ensured, and the lifting operation of the harvesting unit can be performed, thereby improving the harvesting performance of the crop harvester.

In the present invention, it is preferable that the harvesting unit further includes a right front swing fulcrum portion connected to an upper portion of a right portion of a rear portion of the harvesting unit and extending upward, a right front swing support portion for vertically and swingably supporting the right front swing fulcrum portion about the support axis, a left swing fulcrum portion connected to an upper portion of a left portion of the rear portion of the harvesting unit and extending upward, a left swing support portion for vertically and swingably supporting the left swing fulcrum portion about the support axis, and a passage through which the crop passes is provided between the right and right front swing fulcrum portions, the left swing fulcrum portion, and the left swing support portion.

According to the present invention, when a crop is transported to the rear side by the 1 st transport body at the reaping portion, when the crop reaches the transport terminal end portion of the 1 st transport body, the crop is transported to the rear side through the passage between the right swing fulcrum portion and the right swing support portion and the left swing fulcrum portion and the left swing support portion, and the crop in the standing posture is changed to the horizontal posture at the delivery portion from the transport terminal end portion of the 1 st transport body to the transport start end portion of the 2 nd transport body and delivered to the transport start end portion of the 2 nd transport body.

As described above, the crop is easily conveyed from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body without being disturbed by the swing fulcrum portion and the swing support portion.

According to the present invention, the rear portion of the harvesting unit is swingably supported at two positions of the right swing fulcrum portion and the right swing support portion, and the left swing fulcrum portion and the left swing support portion, and therefore, the present invention is advantageous in terms of the support strength of the harvesting unit.

In the present invention, it is preferable that a drive shaft and a transmission shaft are provided at the swing fulcrum portion, the drive shaft is disposed in the vertical direction to rotationally drive the 1 st carrier, and the transmission shaft transmits power to the drive shaft from a position outside a portion where the crop is gripped by the 1 st carrier.

According to the present invention, the space above the rear portion of the harvesting unit and the swing fulcrum portion are effectively utilized, the transmission system to the 1 st transport body can be compactly arranged, and the present invention is advantageous in terms of simplification of the structure of the transmission system to the 1 st transport body.

According to the present invention, the transmission system to the 1 st transport body is disposed above the rear portion of the harvesting unit (the transport terminal end portion of the 1 st transport body), and the transmission system to the 1 st transport body is not disposed below the rear portion of the harvesting unit (the transport terminal end portion of the 1 st transport body).

Thus, the transmission system to the 1 st carrier is not disposed in the vicinity of the trunk of the crop at the position where the standing crop is changed in posture to the horizontal posture, so that the standing crop can be easily changed in posture to the horizontal posture.

In the present invention, it is preferable that the apparatus further comprises a posture changing section connected to an upper part of the swing fulcrum section, the posture changing section changing the posture of the crop from the conveyance terminal end section of the 1 st conveyance body into a lateral posture in which a portion of the crop with fruit is located closer to the separation section than the trunk of the crop, and the trunk of the crop whose posture is changed into the lateral posture is held by the 2 nd conveyance body.

In the case where the crop in the standing posture is changed in the posture to the lying posture at the transfer portion from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body and transferred to the conveyance start end portion of the 2 nd conveyance body, according to the present invention, the crop in the standing posture is easily changed in the posture to the lying posture by the posture changing portion and transferred to the conveyance start end portion of the 2 nd conveyance body, and the transfer of the crop from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body is smoothly performed, and the harvesting performance of the crop harvester can be improved.

According to the present invention, since the posture changing section is connected to the upper part of the swing fulcrum section and disposed above the rear part of the harvesting section (the conveying terminal section of the 1 st conveying body), the posture changing section acts on the upper part of the crop, and the standing crop is smoothly changed in posture to the lying posture by the posture changing section.

In the present invention, it is preferable that the posture changing section includes a guide section, a ring-shaped rotating body, and a claw body, the guide section is disposed to be inclined from a conveyance terminal end of the 1 st conveyance body to a conveyance start end of the 2 nd conveyance body in a plan view, the ring-shaped rotating body is rotationally driven around an axis in a vertical direction and moves from the conveyance terminal end of the 1 st conveyance body to the conveyance start end of the 2 nd conveyance body along the guide section, and the claw body is attached to the ring-shaped rotating body at a predetermined interval in a moving direction of the ring-shaped rotating body, and the claw body pushes the crop from the conveyance terminal end of the 1 st conveyance body to the conveyance start end of the 2 nd conveyance body along with the rotation of the ring-shaped rotating body.

According to the present invention, the claw body (annular rolling body) of the posture changing section moves along the guide section, whereby the crop is pushed and operated from the conveyance terminal end side of the 1 st conveyance body to the conveyance starting end side of the 2 nd conveyance body, and the posture of the crop in the standing posture is changed to the lying posture by the guide section of the posture changing section.

Thus, when the crop is delivered from the conveyance terminal end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body, the crop does not stay in the posture changing section, and the standing crop is easily changed in posture to the lying posture by the posture changing section.

According to the present invention, since the endless rolling body of the posture changing section is rotationally driven by the power of the drive shaft rotationally driving the 1 st carrier, the drive shaft rotationally driving the 1 st carrier can be used also as the drive system of the endless rolling body of the posture changing section, which is advantageous in view of simplification of the structure.

In this case, since the swing fulcrum portion is disposed between the rear portion of the harvesting portion and the posture changing portion, the space between the rear portion of the harvesting portion and the posture changing portion is effectively utilized, and the transmission system of the endless rotating body to the swing fulcrum portion, the 1 st carrier body, and the posture changing portion is disposed compactly.

In the present invention, it is preferable that the harvester further includes a load support portion connected to the harvesting portion across a lower portion of the swing support portion of the body, the load support portion supporting a load applied to the harvesting portion in a left-right direction while allowing the harvesting portion to be lifted and lowered.

In the case where the rear portion of the harvesting unit is vertically swingably supported by the machine body, according to the present invention, the load support portion is connected to the lower portion of the swing support portion of the machine body and the harvesting unit, and the load acting on the harvesting unit in the left-right direction is supported by the load support portion.

Thus, the load acting on the harvesting part in the left-right direction can be prevented from acting on the swing fulcrum part and the swing support part, and the swing fulcrum part and the swing support part can be protected.

In the present invention, it is preferable that the load support portion is provided with a1 st support member and a2 nd support member, the 1 st support member is supported to be vertically swingable about an axis in the left-right direction of the machine body and extends to the front side, and the 2 nd support member is supported to be swingable about an axis in the left-right direction of a front portion of the 1 st support member and is connected to be swingable about an axis in the left-right direction of the harvesting portion.

In the case where the load support portion is configured to allow the elevation of the harvesting unit as described above, according to the present invention, the load support portion is provided with the 1 st support member and the 2 nd support member which are swingable, whereby the elevation of the harvesting unit can be easily allowed.

The solution corresponding to [ problem 3] is as follows.

The crop harvester of the present invention is characterized by comprising a harvesting part for harvesting a crop in a field, an annular carrier body rotatably driven around a transverse axis, a guide rail arranged along the carrier body, a separating part arranged on a transverse side of the carrier body, the carrier body having a1 st projection and a2 nd projection, wherein the 1 st projection is provided on a1 st part of the carrier body on a side farther from the separating part, at a1 st interval in a moving direction of the carrier body, and projects toward the guide rail, the 2 nd projection is provided on a2 nd part of the carrier body on a side closer to the separating part, at a2 nd interval in the moving direction of the carrier body, and projects toward the guide rail, and the 2 nd interval is set to be larger than the 1 st interval, or the 1 st interval is set to be larger than the 2 nd interval, the trunk of the crop harvested by the harvesting part is clamped between the conveying body and the guide rail in a horizontal posture, the crop is conveyed by the movement of the 1 st protrusion and the 2 nd protrusion rotationally driven by the conveying body, and the fruit is separated from the conveyed crop by the separation part and is collected.

According to the present invention, when the trunk of the crop is sandwiched between the carrier and the guide rail, a portion of the trunk of the crop, which is distant from the separation portion, may be located between the 1 st protrusion and the 1 st protrusion of the carrier in the moving direction of the carrier. The portion of the trunk of the crop near the separation portion may be located between the 2 nd protrusion and the 2 nd protrusion of the carrier in the moving direction of the carrier. The part of the trunk of the crop, which is far from the separation part, and the part of the trunk of the crop, which is near to the separation part, are located between the conveying body and the guide rail in the vertical direction.

In the above state, the conveyance body is rotationally driven and the 1 st projection and the 2 nd projection of the conveyance body move, whereby the crop is conveyed.

In this case, the plant trunk of the crop can be moved upward and downward relative to the carrier in the moving direction of the carrier while being carried by the carrier between the 1 st projection and the 1 st projection of the carrier and between the 2 nd projection and the 2 nd projection of the carrier.

In the above state, according to the present invention, the 2 nd interval of the 2 nd protrusion of the carrier is set to be larger than the 1 st interval of the 1 st protrusion of the carrier. Or the 1 st interval of the 1 st projection of the carrier is set to be larger than the 2 nd interval of the 2 nd projection of the carrier.

Thus, if the 2 nd interval of the 2 nd protrusion of the carrier is set to be larger than the 1 st interval of the 1 st protrusion of the carrier, the portion of the trunk of the crop plant closer to the separation portion can move upward and downward between the 2 nd protrusion and the 2 nd protrusion of the carrier in the moving direction of the carrier, with the vicinity of the 1 st portion on the side of the carrier farther from the separation portion as a fulcrum.

When the 1 st interval of the 1 st protrusion of the carrier is set to be larger than the 2 nd interval of the 2 nd protrusion of the carrier, the portion of the trunk of the crop, which is farther from the separation portion, can move upward and downward between the 1 st protrusion and the 1 st protrusion of the carrier in the moving direction of the carrier, with the vicinity of the 2 nd portion of the carrier on the side closer to the separation portion as a fulcrum.

According to the present invention, when the trunk of the crop is gripped between the carrier and the guide rail and the crop carrier is carried in a horizontal posture, the upper portion of the crop can be vibrated upward and downward with respect to the carrier in the moving direction of the carrier with the vicinity of the carrier as a fulcrum while maintaining the horizontal posture.

Accordingly, even if a large separating action is applied to the upper part of the crop (the part with the fruit) in the separating portion, as described above, the upper part of the crop tends to move in the upward and downward directions in the moving direction of the carrier, whereby the large separating action can be released from the upper part of the crop, a state in which the stem of the crop is bent can be avoided, and the separating performance of separating the fruit from the crop by the separating portion can be improved.

If the movement of the upper part of the crop relative to the carrier is too large as described above, it may be difficult to separate the fruit from the crop.

According to the present invention, the movement of the trunk of the crop is suppressed between the 1 st projection and the 1 st projection of the carrier, and between the 2 nd projection and the 2 nd projection of the carrier, and the excessive movement of the upper part of the crop with respect to the carrier is suppressed, so that the lowering of the separation performance of the fruit from the crop by the separation part is not caused.

In the present invention, it is preferable that the 2 nd interval is set to be larger than the 1 st interval.

According to the present invention, the portion of the trunk of the crop, which is closer to the separation portion, can be moved upward and downward in the moving direction of the carrier between the 2 nd protrusion and the 2 nd protrusion of the carrier with the vicinity of the 1 st portion of the carrier, which is farther from the separation portion, as a fulcrum.

In this case, the length from the 1 st part of the carrier to the upper part of the crop is longer than the length from the 2 nd part of the carrier to the upper part of the crop, and the moving width of the upper part of the crop with respect to the carrier becomes larger.

In the present invention, it is preferable that the guide rail is disposed along an upper side of the carrier, and a portion of the guide rail closer to the separating portion is disposed farther from the separating portion than the 2 nd portion in a plan view.

According to the present invention, in a state where the carrier is disposed on the lower side and the guide rail is disposed on the upper side, the portion of the guide rail on the side closer to the separating portion does not exist directly above the 2 nd portion of the carrier on the side closer to the separating portion, so that the upper portion of the crop is easily moved from the horizontal posture to the upper side even in a state where the trunk of the crop is sandwiched between the carrier and the guide rail.

This increases the direction in which the upper part of the crop can move, makes it easy to release a large separating action from the upper part of the crop at the separating part, and can avoid a state in which the stem of the crop is bent, thereby improving the separation performance of the fruit from the crop by the separating part.

Even if the upper portion of the crop moves from the horizontal posture to the upper side, the crop is easily restored to the horizontal posture by the weight of the crop, so that the separation performance of the fruit separated from the crop by the separation portion can be improved in this respect.

In the present invention, it is preferable that the separating unit includes an upper rotating body which is rotationally driven around an upper axis in a direction intersecting the transporting body in a plan view, and a lower rotating body which is rotationally driven around a lower axis along the upper axis below the upper axis, and the fruit is separated from the crop by allowing the transported crop to pass between the upper rotating body and the lower rotating body and by allowing the upper rotating body and the lower rotating body to collide with the crop.

According to the present invention, the upper rotating body collides with the crop from above and the lower rotating body collides with the crop from below at the separating unit, and separation can be performed without leaving fruit at each part of the crop.

According to the present invention, the upper portion of the crop can move upward and downward in the moving direction of the carrier while maintaining a horizontal posture. Thus, by providing the upper rotating body and the lower rotating body in the separating section, the crop can be easily moved upward and downward in the moving direction of the conveying body between the upper rotating body and the lower rotating body.

In the present invention, it is preferable that the upper rotor and the lower rotor are disposed to be inclined with respect to the conveyance body in a plan view so that a portion of the upper rotor and the lower rotor on the conveyance body side is located closer to the conveyance start end side of the conveyance body than a portion of the upper rotor and the lower rotor on the opposite side of the conveyance body, and that the rotation directions of the upper rotor and the lower rotor are set so that the crop passing between the upper rotor and the lower rotor is pushed toward the conveyance start end side of the conveyance body by the upper rotor and the lower rotor.

According to the present invention, when the upper rotating body and the lower rotating body collide with the crop passing between the upper rotating body and the lower rotating body, a component force is generated in a state where the trunk of the crop is sandwiched between the carrier and the guide rail, the component force tending to pull out the crop from the trunk side (carrier side) to the upper side.

This makes it possible to easily separate the fruit from the crop without the crop being bent by being pressed against the trunk side.

Drawings

Fig. 1 is a view showing embodiment 1 (the same as fig. 14 below), and is a left side view of a green soybean harvester.

Fig. 2 is a top view of a green soybean harvester.

Fig. 3 is a schematic diagram showing a transmission system from an engine to various parts.

Fig. 4 is a top view of the harvesting portion.

Fig. 5 is a plan view of the rear portion of the harvesting portion and the vicinity of the separating portion.

Fig. 6 is a sectional view seen from the VI-VI direction of fig. 5.

Fig. 7 is a sectional view seen from the direction VII-VII of fig. 5.

Fig. 8 is a left side view of the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body, the posture changing portion, and the vicinity of the dust cover.

Fig. 9 is a plan view of the conveyance end section of the 1 st conveyance body, the conveyance start section of the 2 nd conveyance body, and the vicinity of the posture changing section.

Fig. 10 is a vertical rear view showing the 1 st carrier and the transmission system of the posture changing unit.

Fig. 11 is a perspective view of the conveyance end portion of the 1 st conveyance body, the conveyance start end portion of the 2 nd conveyance body, and the vicinity of the dust cover.

Fig. 12 is a plan view of the conveyance end portion of the 1 st conveyance body and the vicinity of the conveyance start end portion of the guide rail.

Fig. 13 is a vertical rear view of the conveyance start end of the 2 nd carrier and the vicinity of the conveyance start end of the guide rail.

Fig. 14 is a vertical rear view of the 2 nd carrier and the vicinity of the guide rail.

Fig. 15 is a view showing embodiment 2 (the same as fig. 27 below), and is a left side view of a green soybean harvester.

Fig. 16 is a top view of a green soybean harvester.

Fig. 17 is a cross-sectional top view of the rear portion of the harvesting portion and the vicinity of the separating portion.

Fig. 18 is a top view of the harvesting portion.

Fig. 19 is a left side view of the vicinity of the harvesting part in a state of being lowered.

Fig. 20 is a left side view of the vicinity of the harvesting part in a state of being operated to ascend.

Fig. 21 is a perspective view of the vicinity of the harvesting portion viewed obliquely from the rear side.

Fig. 22 is a left side view of the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body, the posture changing portion, and the vicinity of the dust cover.

Fig. 23 is a plan view of the conveyance terminal end portion of the 1 st conveyance body, the conveyance start end portion of the 2 nd conveyance body, and the vicinity of the posture changing portion.

Fig. 24 is a vertical rear view showing the 1 st carrier and a transmission system of the posture changing unit.

Fig. 25 is a schematic diagram showing a transmission system from an engine to various parts.

Fig. 26 is a plan view showing a harvesting operation mode.

Fig. 27 is a plan view showing a harvesting operation mode.

Fig. 28 is a view showing embodiment 3 (the same as fig. 41 below), and is a left side view of a green soybean harvester.

Fig. 29 is a top view of a green soybean harvester.

Fig. 30 is a cross-sectional plan view of the rear portion of the harvesting section, and the vicinity of the 1 st lower rotor and the 2 nd lower rotor of the separating section.

Fig. 31 is a left side view of the 2 nd carrier and the guide rail.

Fig. 32 is a left side view of the rear part of the harvesting unit, the front part of the 2 nd carrier and guide rail, and the vicinity of the posture changing unit.

Fig. 33 is a vertical rear view of the 2 nd conveyance body and the conveyance start end portion of the guide rail, and the vicinities of the 1 st upper swivel and the 1 st lower swivel of the separation section.

Fig. 34 is a sectional view of the 1 st upper rotor (the 2 nd upper rotor) and the 1 st lower rotor (the 2 nd lower rotor).

Fig. 35 is a perspective view of the 2 nd carrier and the vicinity of the conveyance start end of the guide rail.

Fig. 36 is an exploded perspective view of the 2 nd carrier.

Fig. 37 is an exploded perspective view of the guide rail.

Fig. 38 is a longitudinal left side view of the 2 nd carrier and the guide rail.

Fig. 39 is a vertical rear view of the 2 nd carrier and the guide rail.

Fig. 40 is a plan view of the 2 nd carrier showing a crop clamped state.

FIG. 41 is a sectional view of XLI-XLI in FIG. 40.

Detailed Description

[ embodiment 1]

An embodiment (embodiment 1) as an example of the present invention will be described below with reference to the drawings.

Fig. 1 to 14 show a green soybean harvester as an example of a crop harvester.

In fig. 1 to 14, F denotes the "front direction" of the machine body 1, B denotes the "rear direction" of the machine body 1, U denotes the "upper direction" of the machine body 1, and D denotes the "lower direction" of the machine body 1. R represents the "right direction" of the body 1, and L represents the "left direction" of the body 1.

(Overall Structure of Green soybean harvester of embodiment 1)

As shown in fig. 1 and 2, a machine body 1 is supported by a left-right crawler type traveling device 2, a harvesting section 3 is provided at a left portion of a front portion of the machine body 1, and a steering section 4 is provided at a right portion of the front portion of the machine body 1. A separating section 5 is provided at the rear of the machine body 1, and a support stand 6 and a working deck (deck) 7 are provided at the right of the machine body 1.

(outline of procedure for harvesting of Green Soybean harvester in embodiment 1)

As shown in fig. 1 and 2, the harvesting section 3 includes left and right first carriers 11 that are rotationally driven around axes P1 and P2 in the oblique vertical direction.

As the machine body 1 moves forward, the crop a in the standing posture in the field is pinched from the left and right sides by the left and right first carriers 11 at the harvesting unit 3, and the crop a is pulled out and lifted by the left and right first carriers 11, and is conveyed obliquely upward and rearward along the harvesting unit 3 while maintaining the standing posture.

On the left side of the separating section 5, the 2 nd carrier 12 that is rotationally driven around the axis in the left-right direction is projected rearward from the carrier terminal end portion 11b of the 1 st carrier 11, and the guide rail 13 is disposed along the 2 nd carrier 12.

When the crop a reaches the conveyance terminal end portion 11b of the 1 st conveyance body 11, the posture of the crop a in the standing posture is changed to the horizontal posture on the side of the separating portion 5 at the transfer portion from the conveyance terminal end portion 11b of the 1 st conveyance body 11 to the conveyance start end portion 12a of the 2 nd conveyance body 12, and the crop a is transferred to the conveyance start end portion 12a of the 2 nd conveyance body 12.

The trunk a1 (see fig. 5 and 8) of the crop a in the horizontal posture is sandwiched (held) between the 2 nd carrier 12 and the guide rail 13, and the crop a is carried rearward by the 2 nd carrier 12.

As shown in fig. 1, 5, 6, and 7, the separating unit 5 includes two sets of upper and lower rotating bodies 8 and 9 that are rotationally driven around the axis in the left-right direction, a collecting conveyor 10 disposed in the front-rear direction below the rotating bodies 8 and 9, a conveying conveyor 14 disposed in the left-right direction below the rear portion of the collecting conveyor 10, a discharge conveyor 15 disposed at a predetermined interval from the rear portion of the collecting conveyor 10 to the rear side, and a fan 16 disposed below the collecting conveyor 10.

When the crop a in the horizontal posture is conveyed to the rear side by the 2 nd conveyance body 12, the crop a first passes between the upper and lower rotary bodies 8, the fruit a2 is separated from the crop a by the rotation of the rotary bodies 8, and the separated fruit a2 falls to the collecting conveyor 10.

The crop a then passes between the upper and lower rotary bodies 9, the fruit a2 is separated from the crop a by the rotation of the rotary bodies 9, and the separated fruit a2 falls to the recovery conveyor 10. The crop a from which the fruit a2 has been separated is discharged into the field from the conveyance terminal end portion 12b of the 2 nd conveyance body 12. When the fruit a2 is separated from the crop a by the rotating bodies 8 and 9, the crushed slag such as leaves also falls down to the recovery conveyor 10.

The collecting conveyor 10 is rotationally driven rearward, and the fruit a2 and the trash falling down to the collecting conveyor 10 are conveyed rearward by the collecting conveyor 10, and fall down from the rear of the collecting conveyor 10 to the conveying conveyor 14.

The conveyance air of the fanning car 16 flows from the lower side to the rear side of the recovery conveyor 10, passes between the recovery conveyor 10 and the discharge conveyor 15, and flows to the rear side on the upper side of the discharge conveyor 15.

When the fruit a2 and the trash fall from the rear of the recovery conveyor 10, the fruit a2 falls to the conveyance conveyor 14 against the conveyance wind of the fanning car 16. The slag is carried on the discharge conveyor 15 by the conveyance wind of the fanning car 16, and the slag carried on the discharge conveyor 15 is conveyed to the rear side by the discharge conveyor 15 and discharged to the field.

As shown in fig. 2 and 5, the conveyance conveyor 14 is rotationally driven toward the support base 6, and the plurality of collection boxes 17 are mounted on the support base 6. The fruit a2 dropped on the conveying conveyor 14 is conveyed toward the support base 6 by the conveying conveyor 14, and is introduced into the collection box 17 located at the conveying terminal end of the conveying conveyor 14. The auxiliary operator of the working deck 7 replaces the empty recovery box 17 when the recovery box 17 located at the conveying terminal end of the conveying conveyor 14 is full.

(construction of Transmission System from Engine to respective portions in embodiment 1)

As shown in fig. 3, engine 18 is supported below cab 4. A transmission case 19 is supported at the left and right center of the front portion of the machine body 1, and a hydrostatic continuously variable transmission 20 is connected to 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 21, and the power of the continuously variable transmission 20 is transmitted to the traveling device 2 via a sub-transmission (not shown) or the like inside the transmission case 19. The power of the continuously variable transmission 20 is transmitted to the transmission shaft 26 via the gear transmission mechanism 22, the transmission belt 23, the transmission shaft 24, and the transmission belt 25, and is transmitted from the transmission shaft 26 to the harvesting unit 3 and the posture changing unit 62 (see the later-described configuration of the posture changing unit in embodiment 1)).

The power of the engine 18 is transmitted to the driving mechanism 32 via the belt 27, the shaft 28, the belt 29, the shaft 30, and the belt 31, and the 2 nd carrier 12 is rotationally driven by the driving mechanism 32.

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

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

The power of the drive shaft 28 is transmitted to the fanning car 16 via the belt 33, and the fanning car 16 is rotationally driven. The power of the drive shaft 28 is transmitted to the rotary bodies 8, 9 via the belt 34, the drive shaft 40, and the belts 41, 42, and the rotary bodies 8, 9 are rotationally driven.

(Structure of reaping part (1 st conveyance body) according to embodiment 1)

As shown in fig. 1, 2, and 4, left and right linear support frames 43 are provided at the harvesting section 3, and the support frames 44 are connected across the lower sides of the left and right support frames 43.

The left and right driven wheels 45 are rotatably supported around an axial center P1 extending in an oblique vertical direction at the front portion of the left and right support frames 43. The left and right drive wheels 46 are rotatably supported around an axial center P2 extending in the diagonal vertical direction at the rear portion of the left and right support frames 43. In this case, the axial center P1 and the axial center P2 are parallel to each other.

The right 1 st conveyance body 11 made of a rubber belt is attached to the right driven wheel 45 and the right driving wheel 46. The left 1 st conveyance body 11 made of a rubber belt is attached to the left driven wheel 45 and the left driving wheel 46.

The left and right 1 st carriers 11 are fitted over the entire length of the support frame 43. The plurality of rollers 47 are rotatably supported by the support frame 43, and the roller 47 supports the 1 st carrier 11 on the opposite side of the engagement portion (the portion between the crops a).

A left-right divider 48 and a subsoiler 49 are attached to the front portions of the left and right support frames 43.

The left and right support frames 43 are maintained at equal intervals in the left-right direction, and the support frames 43 are supported in the front-rear direction at the left portion of the front portion of the machine body 1 in an inclined posture in side view such that the front portion of the support frames 43 is on the lower side and the rear portion of the support frames 43 is on the upper side.

In the 1 st carrier 11, the vicinity of the driven wheel 45 is a carrier start end portion 11a, and the vicinity of the driving wheel 46 is a carrier end portion 11 b. Thus, the left and right 1 st carrier bodies 11 extend straight obliquely upward rearward without twisting from the carrier starting end portion 11a to the carrier ending end portion 11b of the 1 st carrier body 11.

(construction of reaping apparatus drive System according to embodiment 1)

As shown in fig. 5, 8, and 9, the drive box 50 is supported above the conveyance end portion 11b of the right 1 st conveyance body 11, the drive box 51 is supported above the conveyance end portion 11b of the left 1 st conveyance body 11, and the posture changing unit 62 is supported above the drive box 51 (see the later-described (configuration of the posture changing unit according to embodiment 1)).

The drive shaft 52 is supported by the drive boxes 50 and 51 along the axial center P2, and the drive wheel 46 is connected to a lower portion of the drive shaft 52. The transmission shaft 53 is supported transversely to the drive cases 50, 51, and the conical gear 52a of the drive shaft 52 and the conical gear 53a of the transmission shaft 53 mesh with each other.

The drive shaft 26 (see fig. 3) is disposed below the conveyance terminating end portion 11b of the 1 st conveyance body 11 in the left-right direction, and a belt 54 is attached to the pulleys 26a and 53b of the drive shaft 26 and 53, respectively.

With the above configuration, the power of the propeller shaft 26 is transmitted to the drive shaft 52 via the belt 54 and the propeller shaft 53, the right drive shaft 52 (the right drive wheel 46) is rotationally driven, and the right 1 st carrier 11 is rotationally driven in the counterclockwise direction in fig. 4 and 5. The left drive shaft 52 (left drive wheel 46) is rotationally driven, and the left 1 st conveyance body 11 is rotationally driven clockwise in fig. 4 and 5.

(configuration of the 2 nd carrier in embodiment 1)

As shown in fig. 1, 2, 3, and 8, a drive mechanism 32 is supported at the left portion of the machine body 1, and the drive mechanism 32 includes a drive sprocket 32a that is rotationally driven around an axial center in the left-right direction. The rotation wheels 55 and 56 are rotatably supported about the center in the left-right direction at the front part of the left part of the machine body 1, and the rotation wheel 57 is rotatably supported about the center in the left-right direction at the rear part of the left part of the machine body 1.

The 2 nd carrier 12 is attached to the drive sprocket 32a and the turning wheels 55, 56, and 57 of the drive mechanism 32. The 2 nd carrier 12 is a metal chain and has a triangular projection as viewed in side view outward. The 2 nd carrier 12 is driven to rotate clockwise in fig. 1 and 8 by the drive sprocket 32a of the drive mechanism 32.

The 2 nd carrier 12 projects rearward from the carrier terminal end portion 11b of the 1 st carrier 11, is disposed in the front-rear direction at the left portion of the body 1, and has the separating portion 5 disposed at the right side of the 2 nd carrier 12. In the 2 nd carrier 12, a part between the rotor 55 and the rotor 56 is a carrier start end portion 12a, and a part near the rotor 57 is a carrier end portion 12 b.

As shown in fig. 1 and 8, the front portion (the portion of the turning wheel 55) of the conveyance start end portion 12a of the 2 nd carrier 12 is disposed below the rear portion (the portion of the turning wheel 56) of the conveyance start end portion 12a of the 2 nd carrier 12, and the conveyance start end portion 12a of the 2 nd carrier 12 is disposed in an inclined posture obliquely upward along the conveyance end portion 11b of the 1 st carrier 11.

The second carrier 12 is disposed in a substantially horizontal posture in side view from a rear portion (a portion of the turning wheels 56) of the conveyance starting end portion 12a to a portion of the conveyance end portion 12 b.

(Structure of guide Rail of embodiment 1)

As shown in fig. 1, 8, 11, and 14, a support frame 58 is supported in the front-rear direction on the upper portion of the left portion of the machine body 1, and a plurality of support rods 59 are supported by the support frame 58 so as to be movable up and down.

The guide rail 13 is a short channel-shaped member having an open side arranged in a row in the front-rear direction downward, and adjacent front-rear channel-shaped members are connected to each other by a pin so as to be bent in the up-down direction.

The guide rail 13 protrudes rearward along the upper side of the 2 nd carrier 12. The pin connecting the channel-like member of the guide rail 13 is supported at the lower portion of the support rod 59, and the guide rail 13 (channel-like member) is supported so as to be movable up and down. The guide rail 13 is pressed against the 2 nd carrier 12 by a spring 60 that urges the support rod 59 downward.

In the guide rail 13, the leading tunnel-like member on the conveyance start end portion 12a side of the 2 nd conveyance body 12 is the conveyance start end portion 13 a. The conveyance start end portion 13a of the guide rail 13 is positioned slightly rearward of the rear portion (the portion of the turning wheels 56) of the conveyance start end portion 12a of the 2 nd carrier 12.

According to the above configuration, when the trunk a1 of the crop a is sandwiched between the 2 nd carrier 12 and the guide rail 13 as described later (a state of the crop at the transfer section where the crop is transferred from the transport terminal end of the 1 st carrier to the transport start end of the 2 nd carrier in embodiment 1), the guide rail 13 is bent and lifted upward by the trunk a1 of the crop a, and the trunk a1 of the crop a is sandwiched between the 2 nd carrier 12 and the guide rail 13 with a sufficient sandwiching force by the biasing force of the spring 60.

(Structure of guide Member in embodiment 1)

As shown in fig. 8, 11, 12, and 14, a guide member 61 made of a round bar material is provided. A guide member 61 is attached to a side surface 13a1 of the conveyance start end portion 13a of the guide rail 13 on the side close to the separating portion 5, and the guide member 61 is projected forward along the 2 nd carrier 12.

The guide member 61 extends obliquely upward and forward in a side view from a rear portion (a portion of the turning wheels 56) of the conveyance starting end portion 12a of the 2 nd carrier 12 (see fig. 8).

The guide member 61 extends obliquely forward toward the left 1 st carrier 11 from the rear portion (the portion of the turning wheel 56) of the conveyance starting end portion 12a of the 2 nd carrier 12 in a plan view (see fig. 12).

The guide member 61 is attached to the conveyance starting end portion 13a of the guide rail 13, and thereby the guide member 61 moves up and down integrally with the conveyance starting end portion 13a of the guide rail 13.

(positional relationship between the 1 st carrier, the 2 nd carrier, and the guide rail of embodiment 1)

As shown in fig. 5, 8, and 9, the conveyance end portion 11b of the 1 st conveyance body 11 and the conveyance start end portion 12a of the 2 nd conveyance body 12 are arranged to overlap in a plan view, and the conveyance start end portion 12a of the 2 nd conveyance body 12 is arranged at a position below the conveyance end portion 11b of the 1 st conveyance body 11 in a side view.

The 2 nd carrier 12 is disposed so that the left and right center portions 12c of the conveyance start end portion 12a of the 2 nd carrier 12 are displaced to a position closer to the separating portion 5 (right side) in a plan view with respect to a virtual line B1 extending in the conveyance direction of the 1 st carrier 11 from the portion where the left and right 1 st carriers 11 are in contact with each other in an opposed manner.

As shown in fig. 12 and 14, the side surface 13a1 on the side closer to the separating portion 5 (right side) of the guide rail 13 is disposed between the side surface 12a1 on the side closer to the separating portion 5 (right side) and the side surface 12a2 on the side farther from the separating portion 5 (left side) of the 2 nd carrier 12 in plan view.

The side surface 13a2 on the side (left side) farther from the separating portion 5 of the guide rail 13 is disposed on the side (left side) farther from the separating portion 5 with respect to the side surface 12a2 on the side (left side) farther from the separating portion 5 of the 2 nd carrier 12 in plan view.

As shown in fig. 5 and 8, the rear portion (the portion of the turning wheels 56) of the conveyance starting end portion 12a of the 2 nd carrier 12 is arranged at a position on the rear side of the conveyance ending end portion 11b of the 1 st carrier 11 in side view. The guide member 61 and the conveyance starting end portion 13a of the guide rail 13 are disposed at positions on the rear side of the conveyance end portion 11b of the 1 st conveyance body 11 in a side view.

The conveyance terminal end portion 11b of the 1 st conveyance body 11 enters between the front end portion of the guide member 61 and the conveyance start end portion 12a of the 2 nd conveyance body 12 in a side view, and the front end portion of the guide member 61 is arranged at a position above the conveyance terminal end portion 11b of the 1 st conveyance body 11 in a side view.

(configuration of posture changing part of embodiment 1)

As shown in fig. 1 and 2, a posture changing unit 62 is attached to an upper portion of the conveyance terminal end portion 11b (drive box 51) of the 1 st conveyance body 11.

As shown in fig. 8, 9, and 10, the posture changing portion 62 includes a guide portion 63, a ring-shaped rolling body 64, and a claw body 65.

The guide 63 includes two sets of upper and lower portions, and is disposed obliquely on a side (right side) closer to the separating section 5 in plan view from the conveyance terminal end portion 11b (drive box 51) of the 1 st conveyance body 11 toward the conveyance starting end portion 12a of the 2 nd conveyance body 12. At the guide portion 63, the side portion on the side (right side) closer to the separating portion 5 is a guide portion 63 a.

In the drive case 51, the drive shaft 52 is extended upward, the transmission shaft 66 is rotatably supported at the position of the axial center P2 of the guide portion 63, and the drive shaft 52 and the transmission shaft 66 are coupled via the coupling member 67.

Between the upper and lower guide portions 63, the drive sprocket 68 is rotatably supported, and a transmission chain 69 is attached to the sprocket 66a of the transmission shaft 66 and the drive sprocket 68.

Between the upper and lower guide portions 63, the driven sprocket 70 is rotatably supported, and the driven sprocket 71 is externally fitted to the transmission shaft 66 so as to be relatively rotatable. The chain-like annular rolling elements 64 are mounted between the upper and lower guide portions 63 over the drive sprockets 68 and the driven sprockets 70 and 71.

Accordingly, the power of the drive shaft 52 is transmitted to the drive sprocket 68 via the transmission shaft 66 and the transmission chain 69, the drive sprocket 68 is rotationally driven, and the endless rolling element 64 is rotationally driven in the clockwise direction in fig. 9.

The claws 65 are attached to the endless rotating body 64 at predetermined intervals in the moving direction of the endless rotating body 64. The claw body 65 is attached to the endless rolling body 64 so as to be freely changeable in posture to an operating posture protruding outward from the endless rolling body 64 and an inactive posture falling down along the endless rolling body 64.

When the pawl body 65 is rotationally driven in the clockwise direction in fig. 9 integrally with the annular rolling body 64, when the pawl body 65 reaches the drive sprocket 68, the pawl body 65 is operated in the inactive posture, and is operated in the active posture from a position slightly beyond the vicinity of the drive sprocket 68 by a slight movement of the sprocket 70.

When the pawl body 65 is operated to the acting posture slightly over the sprocket 70, it moves from the driven sprocket 71 to the driving sprocket 68 while maintaining the acting posture, and when it reaches the driving sprocket 68, it is operated to the non-acting posture.

(positional relationship between the attitude changing section of embodiment 1 and the 1 st and 2 nd carrier)

As shown in fig. 1 and 8, the posture changing portion 62 is disposed over a position above the conveyance end portion 11b (drive box 51) of the 1 st carrier 11 and a position away from the conveyance end portion 11b (drive box 51) of the 1 st carrier 11 toward the rear side in a side view.

As shown in fig. 1 and 8, the posture changing portion 62 is disposed obliquely upward in side view from a position above the conveyance terminating end portion 11b (drive box 51) of the 1 st conveyance body 11, and overlaps the conveyance starting end portion 12a of the 2 nd conveyance body 12 in plan view as shown in fig. 2 and 9.

As shown in fig. 2 and 9, in the posture changing unit 62, the guide portion 63a of the guide portion 63 is obliquely arranged to be inclined toward a side (right side) closer to the separating unit 5 in a plan view from the conveyance terminal end portion 11b (drive box 51) of the 1 st carrier body 11 toward the conveyance starting end portion 12a of the 2 nd carrier body 12.

The endless rolling body 64 is rotationally driven around the axial center in the vertical direction, and moves from the conveyance end portion 11b (drive box 51) side of the 1 st conveyance body 11 to the conveyance start end portion 12a side of the 2 nd conveyance body 12 to the position of the drive sprocket 68 along the guide portion 63a of the guide portion 63.

(positional relationship between attitude changing section of embodiment 1 and transmission system of the first carrier 1.)

As shown in fig. 10, the distribution transmission unit 72 is disposed at a position between the conveyance terminal end portion 11b of the left 1 st conveyance body 11 and the posture changing unit 62, and the distribution transmission unit 72 includes the drive box 51, the bevel gear 52a of the drive shaft 52, and the bevel gear 53a of the transmission shaft 53.

The apparatus includes a power transmission unit 73 for transmitting power from a position on the left outer side with respect to a portion where the crop a is gripped by the first carrier 11 to the distribution power transmission unit 72, and the power transmission unit 73 includes the transmission shaft 53, the pulley 53b of the transmission shaft 53, and the belt 54.

The lower transmission shaft that transmits the power transmitted to the distribution transmission unit 72 to the left 1 st carrier 11 located below the distribution transmission unit 72 is the drive shaft 52. The upper transmission shaft that transmits the power transmitted to the distribution transmission unit 72 to the posture changing unit 62 located above the distribution transmission unit 72 is the transmission shaft 66.

The power transmission unit 74 is disposed above the conveyance terminating end portion 11b of the right 1 st conveyance body 11, and the power transmission unit 74 includes the drive box 50, the bevel gear 52a of the drive shaft 52, and the bevel gear 53a of the power transmission shaft 53.

The apparatus includes a power transmission unit 75 for transmitting power from a position on the right outer side to the power transmission unit 74 with respect to a portion where the crop a is gripped by the first carrier 11, and the power transmission unit 75 includes the transmission shaft 53, the pulley 53b of the transmission shaft 53, and the belt 54.

The lower transmission shaft that transmits the power transmitted to the transmission unit 74 to the right 1 st carrier 11 positioned below the transmission unit 74 is the drive shaft 52.

(Structure of trunk support part of embodiment 1)

As shown in fig. 8, 11, and 13, a flat plate-like stem support portion 76 that guides the stem a1 of the crop a from below to the rear side is disposed at a position on the far side (left side) from the separating portion 5 in plan view with respect to the conveyance starting end portion 12a of the 2 nd carrier 12. The trunk support portion 76 extends obliquely downward from the rear portion (the portion of the turning wheels 56) of the conveyance starting end portion 12a of the 2 nd carrier 12 to the front side along the conveyance starting end portion 12a of the 2 nd carrier 12.

(construction of trunk guide of embodiment 1)

As shown in fig. 8, 11, 12, and 13, the trunk guide 77 is disposed along the side surface 12a2 on the side (left side) of the 2 nd carrier 12 farther from the separating unit 5 at the transport start end 12a of the 2 nd carrier 12, and the trunk guide 77 prevents the trunk a1 of the crop a from separating from the transport start end 12a of the 2 nd carrier 12.

The trunk guide 77 is formed in a circular rod shape. The rear end portion of the trunk guide 77 is disposed in the vicinity of the conveyance start end portion 13a of the guide rail 13, and the trunk guide 77 extends forward along the conveyance start end portion 12a of the 2 nd carrier 12. The trunk guide 77 extends forward from the front portion (the part of the turning wheel 55) of the conveyance starting end portion 12a of the 2 nd carrier 12 to the side (left side) away from the conveyance starting end portion 12a of the 2 nd carrier 12.

A support shaft 77a facing the left-right direction is coupled to the distal end of the trunk guide 77. A support shaft 77a of the trunk guide 77 is supported by a support portion 78 attached to the machine body 1 so as to be slidable in the left-right direction, and a spring 79 for biasing the front end portion of the trunk guide 77 toward the conveyance starting end portion 12a (right side) of the 2 nd conveyance body 12 is attached to the support shaft 77a of the trunk guide 77.

A support shaft 77b oriented in the vertical direction is coupled to a rear end portion of the trunk guide portion 77. In the front portion of the support frame 58, a support shaft 77b of the trunk guide 77 is supported slidably in the vertical direction, and a spring 80 that biases the rear end portion of the trunk guide 77 toward (below) the conveyance starting end portion 12a of the 2 nd conveyance body 12 is attached to the support shaft 77b of the trunk guide 77.

(construction of the Stem guide of embodiment 1)

As shown in fig. 4, 8, 11, 12, and 13, a stem guide 81 for guiding the stem of the crop a toward the conveyance starting end portion 12a side (right side) of the 2 nd carrier 12 is provided at a position between the conveyance ending end portion 11b of the 1 st carrier 11 and the posture changing portion 62 in the side view.

The stem guide 81 is formed in a circular rod shape, and the stem guide 81 is disposed along the upper portion of the conveyance terminating end portion 11b of the left 1 st conveyance body 11 and attached to the harvesting portion 3.

The front portion 81a of the stem guide 81 is located forward of the front portion (the portion of the rotor 55) of the conveyance starting end portion 12a of the 2 nd carrier 12, and projects to a side (left side) away from the conveyance terminating end portion 11b of the left 1 st carrier 11 in a plan view.

The rear portion 81b of the stem guide 81 is located in the vicinity of the upper side of the rear portion (the portion of the rotor 56) of the conveyance starting end portion 12a of the 2 nd carrier 12, and projects toward the conveyance starting end portion 12a (right side) of the 2 nd carrier 12 in plan view.

(configuration of upper guide part in embodiment 1)

As shown in fig. 1, 2, 8, and 9, an upper guide 82 for guiding the upper portion of the crop a toward the conveyance starting end portion 12a of the 2 nd conveyance body 12 is provided at a position above the posture changing portion 62 in a side view.

The upper guide portion 82 is formed in a flat plate shape, and is attached to the upper guide portion 63 along the guide portion 63a of the upper guide portion 63 in the posture changing portion 62. The upper guide portion 82 is set in an inclined posture so as to be directed toward the conveyance terminal end portion 11b side (right side) of the right 1 st conveyance body 11 in a plan view from a portion on the upper side of the portion attached to the upper guide portion 63.

(Structure of rear guide and dust cover in embodiment 1)

As shown in fig. 1, 8, and 11, a rear guide 83 is coupled to the front end of the support frame 58. The rear guide portion 83 is formed in a flat plate shape, and is set in an inclined posture so as to face the conveyance terminal end portion 11b side (left side) of the left 1 st conveyance body 11 in a plan view.

As shown in fig. 1, 2, 8, and 11, the dust cover 84 is attached to the body 1 so as to be positioned on the right side of the posture changing portion 62. The dust cover 84 is formed in a box shape from a plate material, and an opening portion 84a is opened in a left portion (a portion on the posture changing portion 62 side) of the dust cover 84.

(State of crop at the transfer section from the transfer terminal end of the 1 st carrier to the transfer start end of the 2 nd carrier in embodiment 1)

In the transfer section from the conveyance terminal end portion 11b of the 1 st conveyance body 11 to the conveyance start end portion 12a of the 2 nd conveyance body 12, the posture of the crop a in the standing posture is changed to the horizontal posture, and the trunk a1 of the crop a whose posture is changed from the conveyance terminal end portion 11b of the 1 st conveyance body 11 to the horizontal posture is sandwiched between the 2 nd conveyance body 12 and the guide rail 13.

The flow of the crop a in the above-described state is as follows.

As shown in fig. 1, 2, and 4, in the harvesting unit 3, when the cutter (デバイダ) 48 is brought into contact with the field and the machine body 1 is advanced in a state where the subsoiler (サブソイラ) 49 has entered the field, the crop a in the field is separated by the cutter 48, the field is excavated by the subsoiler 49, and the crop a in the field standing posture enters the conveyance start end portions 11a of the left and right first conveyance bodies 11.

The crop a in the field in the standing posture is gripped from the left and right sides by the left and right 1 st carriers 11, the crop a is pulled out and lifted by the left and right 1 st carriers 11, and the crop a is conveyed obliquely upward and rearward along the harvesting section 3 while being maintained in the standing posture.

As shown in fig. 8, 9, 11, and 12, when the crop a in the standing posture reaches the conveyance terminal end portion 11b of the 1 st conveyance body 11, the trunk a1 of the crop a is caught by the trunk support portion 76 from below, the left portion of the trunk a1 of the crop a comes into contact with the trunk guide portion 77, and the trunk a1 of the crop a is guided to the conveyance start end portion 12a of the 2 nd conveyance body 12.

Next, in a state where the crop a is held between the left and right 1 st carriers 11, the trunk a1 of the crop a is held between the conveyance starting end portion 12a of the 2 nd carrier 12 and the trunk guide 77, and is in a state of being in contact with the conveyance starting end portion 12a of the 2 nd carrier 12, and the trunk a1 of the crop a is in a state of being caught by the trunk support 76 from below.

In a state where the crop a is sandwiched between the left and right 1 st carriers 11, the stem of the crop a contacts the stem guide 81 and is guided to the conveyance starting end portion 12a side (right side) of the 2 nd carrier 12.

By the rotation of the claw bodies 65 (the endless rolling bodies 64) of the posture changing portion 62, the upper portion of the crop a enters between the claw bodies 65, and the upper guide portion 82 comes into contact with the upper portion of the crop a.

Thus, the crop a is conveyed to the rear side (the 2 nd carrier 12 side) by the left and right 1 st carriers 11, and the trunk a1 of the crop a is conveyed by the conveyance leading end portion 12a of the 2 nd carrier 12, and the trunk a1 of the crop a is in a slightly horizontal posture.

The claw body 65 (the endless rolling body 64) of the posture changing unit 62 is rotationally driven, and thereby the upper portion of the crop a is pushed from the conveyance terminal end portion 11b of the 1 st conveyance body 11 to the conveyance starting end portion 12a of the 2 nd conveyance body 12 along the guide portion 63a of the guide unit 63 by the claw body 65.

The guide 63a and the claw 65 of the guide 63 change the posture of the crop a from the conveyance terminal end 11b of the first conveyance body 11 to a horizontal posture in which the portion of the crop a with the fruit a2 is closer to the separation section 5 (right side) with respect to the trunk a1 of the crop a. The upper guide portion 82 assists the above-described posture change of the crop a to the horizontal posture.

Next, as shown in fig. 8, 9, and 13, when the crop leaves from the conveyance terminal end portion 11b of the 1 st conveyance body 11 to the rear side, the posture of the crop a is changed to the landscape posture by the posture changing portion 62.

The trunk a1 of the crop a whose posture is changed from the posture of the conveyance terminal end portion 11b of the 1 st carrier 11 to the horizontal posture is sandwiched between the conveyance starting end portion 12a of the 2 nd carrier 12 and the trunk guide portion 77, and is in a state of being mounted on the conveyance starting end portion 12a of the 2 nd carrier 12.

At the same time, the upper portion of the crop a enters the opening portion 84a of the dust cover 84 in a poured manner, and the upper portion of the crop a is guided by the rear guide portion 83 toward the opening portion 84a of the dust cover 84.

Subsequently, the trunk a1 of the crop a in the horizontal posture is guided between the 2 nd carrier 12 and the conveyance starting end portion 13a of the guide rail 13 by the guide member 61, sandwiched between the 2 nd carrier 12 and the guide rail 13, and the crop a is conveyed to the rear side in the horizontal posture by the 2 nd carrier 12 and the guide rail 13.

(other embodiment of embodiment 1)

The posture changing portion 62 may be constituted by the guide portion 63 without the annular rolling body 64 and the claw body 65.

The posture changing unit 62 may be disposed between the conveyance terminal end portion 11b of the 1 st carrier body 11 and the conveyance start end portion 12a of the 2 nd carrier body 12 in a side view.

The harvesting unit 3 (the 1 st carrier 11), the 2 nd carrier 12, and the guide rail 13 may be provided on the right portion of the front portion of the machine body 1. According to this configuration, the separating unit 5 is provided on the left side of the 2 nd carrier 12 and the guide rail 13.

[ 2 nd embodiment ]

An embodiment (embodiment 2) as an example of the present invention will be described below with reference to the drawings.

Fig. 15 to 27 show a green soybean harvester as an example of a crop harvester.

In fig. 15 to 27, F denotes the "front direction" of the machine body 1, B denotes the "rear direction" of the machine body 1, U denotes the "upper direction" of the machine body 1, and D denotes the "lower direction" of the machine body 1. R represents the "right direction" of the body 1, and L represents the "left direction" of the body 1.

(Overall Structure of Green soybean harvester of embodiment 2)

As shown in fig. 15 and 16, the body 101 is supported by a left-right crawler type traveling device 102, a harvesting portion 103 is provided on the left part of the front portion of the body 101, and a steering portion 104 is provided on the right part of the front portion of the body 101. A separating portion 105 is provided at the rear of the machine body 101, and a support table 106 and a working deck (deck) 107 are provided at the right of the machine body 101.

(outline of procedure for harvesting of Green Soybean harvester in embodiment 2)

As shown in fig. 15 and 16, harvesting unit 103 includes left and right 1 st conveying bodies 111 that are rotationally driven around axes P '1 and P' 2 extending in an oblique upward and downward direction.

As the machine body 101 moves forward, the crop a in the standing posture in which the field is pinched from the left and right sides by the left and right first carriers 111 at the harvesting unit 103, is pulled out and lifted by the left and right first carriers 111, and is conveyed obliquely upward and rearward along the harvesting unit 103 while maintaining the standing posture.

On the left side of the separating section 105, the 2 nd carrier 112 that is rotationally driven around the axis in the left-right direction is projected rearward from the carrier terminal end portion 11b of the 1 st carrier 111, and the guide rail 113 is disposed along the 2 nd carrier 112.

When the crop a reaches the conveyance terminal end portion 111b of the 1 st conveyance body 111, the posture of the crop a in the standing posture is changed to the horizontal posture on the side of the separating portion 105 at the transfer portion from the conveyance terminal end portion 111b of the 1 st conveyance body 111 to the conveyance start end portion 112a of the 2 nd conveyance body 112, and the crop a is transferred to the conveyance start end portion 112a of the 2 nd conveyance body 112. The trunk a1 of the crop a in the horizontal posture is held (held) between the 2 nd carrier 112 and the guide rail 113, and the crop a is carried rearward by the 2 nd carrier 112.

As shown in fig. 15, 16, and 17, the separation unit 105 includes an upper and lower pair of rotating bodies 108 and an upper and lower pair of rotating bodies 109 that are rotationally driven around a shaft center in the left-right direction, a collecting conveyor 110 disposed in the front-rear direction below the rotating bodies 108 and 109, a conveying conveyor 114 disposed in the left-right direction below the rear portion of the collecting conveyor 110, a discharge conveyor 115 disposed at a predetermined interval from the rear portion of the collecting conveyor 110 to the rear side, and a fan 116 disposed below the collecting conveyor 110.

When the crop a in the horizontal posture is conveyed to the rear side by the 2 nd conveyance body 112, the crop a first passes between the upper and lower rotary bodies 108, the fruit a2 is separated from the crop a by the rotation of the rotary bodies 108, and the separated fruit a2 falls to the collection conveyor 110.

The crop a then passes between the upper and lower rotary bodies 109, and the fruit a2 is separated from the crop a by the rotation of the rotary bodies 109, and the separated fruit a2 falls to the recovery conveyor 110. The crop a from which the fruit a2 has been separated is released into the field from the conveyance terminal end portion 112b of the 2 nd conveyance body 112. When the fruit a2 is separated from the crop a by the rotating bodies 108 and 109, the crushed slag such as leaves also falls down to the recovery conveyor 110.

The collecting conveyor 110 is rotationally driven rearward, and the fruit a2 and the trash falling down to the collecting conveyor 110 are conveyed rearward by the collecting conveyor 110, and fall down from the rear of the collecting conveyor 110 to the conveying conveyor 114.

The conveyance wind of the fanning car 116 flows from the lower side to the rear side of the recovery conveyor 110, passes between the recovery conveyor 110 and the discharge conveyor 115, and flows to the rear side on the upper side of the discharge conveyor 115.

When the fruit a2 and the trash fall from the rear of the recovery conveyor 110, the fruit a2 falls to the conveyance conveyor 114 against the conveyance wind of the fanning car 116. The slag is carried on the discharge conveyor 115 by the conveyance wind of the fanning car 116, and the slag carried on the discharge conveyor 115 is conveyed to the rear side by the discharge conveyor 115 and discharged to the field.

The conveyance conveyor 114 is rotationally driven toward the support base 106, and a plurality of collection boxes 117 are mounted on the support base 106. The fruit a2 dropped to the conveying conveyor 114 is conveyed toward the support base 106 by the conveying conveyor 114, and is introduced into the collection box 117 located at the conveying terminal end of the conveying conveyor 114. The assistant operator of the working deck 107 replaces the empty collection box 117 when the collection box 117 located at the conveyance terminal end portion of the conveyance conveyor 114 is full.

(mode for harvesting work in field of embodiment 2)

As shown in FIGS. 26 and 27, crop plants A are planted in a plurality of rows L1-L5 at the field.

In the foregoing state, the body 101 is advanced along the row L1 of the crop a at the end of the rows L1 to L5 of the crop a, and the crop a in the row L1 is harvested by the harvesting unit 103 (see position K1). In this case, the right side of the body 101 is an area where harvesting of the crop a is completed (an area where the crop a does not exist), and the left side of the body 101 is an area where the crop a before harvesting exists.

When the machine body 101 finishes the arrival position K2 of the row L1 at which the crop a is harvested, the harvesting unit 103 is lifted and the turning travel M1 is performed, so that the machine body 101 is positioned at the position K3 of the row L2 of the crop a on the opposite side. At the position K3, the harvesting unit 103 is lowered to move the machine body 101 along the row L2 of the crop a, and the crop a in the row L2 is harvested by the harvesting unit 103.

In this case, as described above, the right side of the machine body 101 is an area where harvesting of the crop a is completed (an area where the crop a does not exist), and the left side of the machine body 101 is an area where the crop a before harvesting exists.

When the machine body 101 finishes harvesting the crop a in the row L2 and reaches the position K4, the harvesting unit 103 is lifted up, and the turning movement M2 is performed, so that the machine body 101 is positioned at the position K5 of the row L3 of the crop a on the opposite side. At the position K5, the harvesting unit 103 is lowered to move the machine body 101 along the row L3 of the crop a, and the crop a in the row L3 is harvested by the harvesting unit 103.

As described above, the crop a in the row L3 was harvested by repeating the harvesting of the crop a in the row L4 by performing the turning row M1, the harvesting of the crop a in the row L5 by performing the turning row M2, and the harvesting of the crop a in the turning rows M1, M2, L1 to L5, thereby harvesting the crop a in the field.

(structure of reaping part of embodiment 2)

As shown in fig. 18, 19, and 21, a left-right linear support frame 143 is provided at the harvesting portion 103. The left and right frames 128, 129 are connected downward at the left and right support frames 143, and the support frames 130, 144 are connected in the left and right direction across the lower portions of the left and right frames 128, 129.

The left and right support frames 131 are coupled downward at the lower portions of the rear portions of the left and right support frames 143, and the support frames 133 are coupled in the left-right direction over the lower portions of the left and right support frames 131. The left and right support frames 134 are connected along the support frame 143 across the right and left portions of the support frame 130 and the right and left portions of the support frame 133. The framework of the harvesting portion 103 is configured as described above.

In front portions of the left and right support frames 143, left and right driven wheels 145 are rotatably supported around an axial center P' 1 in an oblique upward and downward direction. The left and right drive wheels 146 are rotatably supported around an axial center P' 2 in an oblique upward and downward direction at the rear portion of the left and right support frames 143. In this case, the axes P '1 and P' 2 are parallel to each other.

Right 1 st conveyance body 111 made of a rubber belt is attached to right driven wheel 145 and right driving wheel 146. A left 1 st conveyance body 111 made of a rubber belt is attached to the left driven wheel 145 and the left driving wheel 146. The left and right 1 st carriers 111 are fitted over the entire length of the support frame 143.

The plurality of rollers 147 are rotatably supported by the support frame 143, and the rollers 147 support the opposite side of the engagement portion (the crop a nip portion) of the 1 st carrier 111. A left and right divider 148 and a subsoiler 149 are attached to the front portions of the left and right support frames 143.

The left and right support frames 143 are maintained at equal intervals in the left-right direction, and the support frames 143 are supported in the front-rear direction at the left portion of the front portion of the body 101 in an inclined posture in side view such that the front portion of the support frames 143 is on the lower side and the rear portion of the support frames 143 is on the upper side.

In the 1 st carrier 111, the vicinity of the driven wheel 145 is a carrier start end portion 111a, and the vicinity of the driving wheel 146 is a carrier end portion 111 b. Thus, the left and right 1 st carrier bodies 111 extend straight obliquely upward rearward without twisting from the carrier start end portion 111a to the carrier end portion 111b of the 1 st carrier body 111.

(lifting structure of reaping part of embodiment 2)

As shown in fig. 17, 21, 22, and 24, four support columns 135 are connected to the left part of the front part of the body 101. A left and right support frame 136 in the front-rear direction is connected to an upper portion of the support column 135, and a left and right support frame 137 in the left-right direction is connected to a lower portion of the support column 135.

The left and right support frames 136 are connected to a tubular left and right swinging support 138. The leftward and rightward swinging support portions 138 are arranged along the support axis P' 11 in the leftward and rightward direction, and are arranged at intervals from each other.

As shown in fig. 18 and 19, a support plate 139, which is the right rear part of the harvesting unit 103, is connected to the rear part of the right support frame 143, and a box-shaped right swing fulcrum 150 of the cast product is connected to the upper part of the support plate 139 so as to protrude upward.

A support plate 140, which is the left rear portion of the harvesting unit 103, is coupled to the rear portion of the left support frame 143, and a box-shaped left swing fulcrum 151 of the cast product is coupled to the upper portion of the support plate 140 so as to project upward.

As shown in fig. 18 and 19, the lateral flange portions 150a and 151a are provided on the lateral swing fulcrum portions 150 and 151, and as shown in fig. 17, 21, and 24, the flange portions 150a and 151a of the lateral swing fulcrum portions 150 and 151 are rotatably supported by the lateral swing support portion 138.

Thus, the harvesting unit 103 (the leftward and rightward swinging fulcrum portions 150 and 151) is supported by the leftward and rightward swinging support portion 138 so as to be swingable (vertically movable) about the support axis P' 11 in the leftward and rightward direction that is separated upward from the rear portion (the conveyance terminal end portion 111b of the 1 st conveyance body 111) of the harvesting unit 103.

A passage C through which the crop a passes is provided between the right swing fulcrum portion 150 and the right swing support portion 138, and between the left swing fulcrum portion 151 and the left swing support portion 138.

As shown in fig. 19 and 21, a bracket 130a is connected to the left and right center portions of the support frame 130 in the harvesting unit 103, and a hydraulic cylinder 141 (corresponding to an elevating mechanism) is connected to the bracket 130a of the support frame 130 and the front portion of the machine body 101.

As shown in fig. 20, the hydraulic cylinder 141 is extended to enable the raising operation of the harvesting unit 103, and as shown in fig. 19, the hydraulic cylinder 141 is retracted to enable the lowering operation of the harvesting unit 103.

(Structure of load support part in embodiment 2)

As shown in fig. 19, 20, and 21, the load support portion 172 is connected to the harvesting portion 103 at a portion below the rear portion (swing fulcrum portions 150 and 151) of the harvesting portion 103 of the machine body 101. The load support portion 172 includes a1 st support member 173 and a2 nd support member 174.

The 1 st support member 173 includes two sets of right and left sides, is supported so as to be vertically swingable around an axial center P' 3 in the left-right direction of the front portion of the body 101, and extends to the front side. A frame 175 extending in the left-right direction is connected to a plurality of portions of the left and right 1 st support members 173.

The 2 nd support member 174 has a rectangular plate shape in front view, and a lower portion of the 2 nd support member 174 is supported so as to be swingable around an axial center P' 4 in the left-right direction of the front portion of the 1 st support member 173. The upper portion of the 2 nd support member 174 is connected to be swingable around the axial center P' 5 in the left-right direction of the left and right frames 129 of the harvesting unit 103.

As described above (the elevation structure of the harvesting portion), when the harvesting portion 103 is operated to elevate, the load supporting portion 172, the 1 st supporting member 173, and the 2 nd supporting member 174 are swung around the axial centers P ' 3, P ' 4, P ' 5, thereby allowing the elevation operation of the harvesting portion 103.

When a load in the left-right direction is applied to the harvesting unit 103, the load applied in the left-right direction to the harvesting unit 103 is supported by the load support portion 172, and the load applied in the left-right direction to the harvesting unit 103 can be prevented from being applied to the swing support portions 150 and 151 and the swing support portion 138 of the harvesting unit 103.

(construction of Transmission System to reaping part of embodiment 2)

As shown in fig. 16 and 25, an engine 118 is supported below the cab 104. The power of the engine 118 is transmitted from the belt 127 to the driving mechanism 132 of the 2 nd carrier 112, the rotating bodies 108 and 109 of the separating unit 105, the collecting conveyor 110, the conveying conveyor 114, the discharging conveyor 115, and the fan cart 116.

A transmission case 119 is supported at the left and right center of the front portion of the body 101, and a hydrostatic continuously variable transmission 120 is connected to the transmission case 119. The power of the engine 118 is transmitted to the input shaft of the continuously variable transmission 120 via the transmission belt 121, and the power of the continuously variable transmission 120 is transmitted to the traveling device 102 via a sub-transmission (not shown) or the like inside the transmission 119.

The power of the continuously variable transmission 120 is transmitted to a transmission shaft 126 via a gear transmission 122, a transmission belt 123, a transmission shaft 124, and a transmission belt 125.

As shown in fig. 21, 22, and 24, left and right support frames 142 are coupled to each other in the front-rear direction at the lower portion of the support post 135, and the transmission shaft 126 is supported by the left and right support frames 142 in the left-right direction.

As shown in fig. 17, 24, and 25, drive shaft 152 is supported along axial center P' 2 by rocking fulcrum portions 150 and 151, and drive wheel 146 is coupled to a lower portion of drive shaft 152. At the swing fulcrum portions 150, 151, the transmission shaft 153 is supported transversely at a position where the shaft center P' 11 is supported, and the conical gear 152a of the drive shaft 152 and the conical gear 153a of the transmission shaft 153 are engaged. A belt 154 is installed over the pulley 126a of the transmission shaft 126 and the pulley 153b of the transmission shaft 153.

With the above configuration, the power of the transmission shaft 126 is transmitted to the drive shaft 152 via the transmission belt 154 and the transmission shaft 153, the right drive shaft 152 (the right drive wheel 146) is rotationally driven, and the right 1 st carrier 111 is rotationally driven in the counterclockwise direction in fig. 16 and 17. The left drive shaft 152 (left drive wheel 146) is rotationally driven, and the left 1 st transport body 111 is rotationally driven clockwise in fig. 16 and 17.

(Structure of the entry prevention member of embodiment 2)

As shown in fig. 15, 16, 19, and 21, the entry prevention member 178 is attached to the harvesting unit 103. The entry prevention member 178 is formed in a circular rod shape and includes a front-rear direction portion 178a and a vertical direction portion 178 b.

The forward and rearward facing portion 178a of the entry prevention member 178 is attached to the left frame 128, which is the front portion of the harvesting unit 103, and the forward and rearward facing portion 178a of the entry prevention member 178 is arranged in the forward and rearward direction over the left portion of the front portion of the harvesting unit 103 and the vicinity of the front portion of the left traveling device 102, which is the side of the harvesting unit 103.

The upward and downward facing portion 178b of the entry prevention member 178 extends upward from the rear portion of the forward and rearward facing portion 178a of the entry prevention member 178, and the upper portion of the upward and downward facing portion 178b of the entry prevention member 178 is attached to the rear portion of the harvesting unit 103, i.e., the left portion of the support frame 133.

The entry preventing member 178 (the front-rear facing portion 178a and the vertical facing portion 178b) is positioned on the outer side (left side) of the load supporting portion 172 (the 1 st supporting member 173 and the 2 nd supporting member 174) in a plan view, and intersects the load supporting portion 172 (the 1 st supporting member 173 and the 2 nd supporting member 174) in a side view.

(Structure of contact preventing member in embodiment 2)

As shown in fig. 15, 16, 19 and 21, contact prevention members 179 and 180 are attached to the front and rear portions of the left lateral portion of the body 101 (corresponding to the upper portion of the traveling device 102 on the harvesting portion 103 side of the body 101).

The front contact prevention member 179 is formed in a circular rod shape, and the front portion of the front contact prevention member 179 is connected to the front portion of the left lateral portion of the machine body 101. The front portion of the front contact prevention member 179 is located inward (right side) of the upward and downward facing portion 178b of the entry prevention member 178, and the front contact prevention member 179 is extended obliquely to the rear side on the left lateral side. The rear portion of the front contact prevention member 179 is located outward (leftward) of the upward and downward facing portion 178b of the entrance prevention member 178 in plan view.

The rear contact prevention member 180 is formed in a rectangular frame shape in plan view, and is connected to a rear portion of the left lateral portion of the machine body 101, and a worker sits on the rear contact prevention member 180 in a standing manner.

The rear contact preventing member 180 protrudes outward (leftward) from the vertical portion 178b of the entry preventing member 178 in plan view, and the rear portion of the front contact preventing member 179 is connected to the front portion of the rear contact preventing member 180.

(function of the entry preventing member and the contact preventing member in embodiment 2)

As shown in fig. 26 and 27, when the machine body 1 is advanced along the rows L1 to L5 of the crop a and the crops a in the rows L1 to L5 are harvested by the harvesting unit 103, the right side of the machine body 101 is an area where the harvesting of the crop a is completed (an area where the crop a does not exist), and the left side of the machine body 101 is an area where the crop a before harvesting exists.

Taking crop a row L1 as an example, as shown in fig. 27, the left traveling device 102 is located behind the front portion of the harvesting unit 103 in plan view, and is located on the left side of the row L1 of crop a harvested by the harvesting unit 103, and the row L3 of crop a before harvesting is located adjacent thereto, and the left traveling device 102 is in a state of traveling along the row L3 of crop a before harvesting in the vicinity of the row L3 of crop a before harvesting.

As shown in fig. 15 and 19, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the harvesting unit 103 is supported on the left portion of the machine body 101 in the front-rear direction such that the front portion of the harvesting unit 103 is positioned on the front side of the left traveling device 102 in a side view and is positioned in the vicinity of the field and the rear portion of the harvesting unit 103 is positioned on the upper side of the left traveling device 102 in a side view.

In the above state, even if the pre-harvest crop a (row L3) is about to enter the area on the front side of the left traveling apparatus 102 (the area between the front of the harvesting section 103 and the front of the left traveling apparatus 102), the pre-harvest crop a (row L3) is blocked by the entry prevention member 178 (the front-rear direction portion 178a), and entry of the pre-harvest crop a (row L3) into the area on the front side of the left traveling apparatus 102 is prevented.

Next, when the crop a (row L3) before harvesting passes through the area on the front side of the left traveling device 102, it reaches the lateral side of the left traveling device 102. Even if the pre-harvest crop a (row L3) is about to contact the left traveling apparatus 102, the pre-harvest crop a (row L3) is stopped by the front and rear contact prevention members 179 and 180, and contact between the pre-harvest crop a (row L3) and the left traveling apparatus 102 is prevented.

(configuration of the 2 nd carrier in embodiment 2)

As shown in fig. 15, 16, and 17, a drive mechanism 132 is supported at the left portion of the machine body 101, and the drive mechanism 132 includes a drive sprocket 132a that is rotationally driven around the axial center in the left-right direction. The rotation wheels 155 and 156 are rotatably supported about the left-right axis in the front portion of the left portion of the body 101, and the rotation wheel 157 is rotatably supported about the left-right axis in the rear portion of the left portion of the body 101.

The 2 nd carrier 112 is attached to the drive sprocket 132a and the turning wheels 155, 156, 157 of the drive mechanism 132. The 2 nd carrier 112 is a metal chain and has a triangular projection on the outside in a side view. The 2 nd carrier 112 is rotationally driven in the clockwise direction in fig. 15 by the drive sprocket 132a of the drive mechanism 132.

The 2 nd carrier 112 is extended rearward from the carrier terminal end 111b of the 1 st carrier 111, and is disposed in the front-rear direction at the left part of the body 101, and the separating portion 105 is disposed at the right side of the 2 nd carrier 112. In the 2 nd carrier 112, a part between the rotor 155 and the rotor 156 is a carrier start end part 112a, and a part near the rotor 157 is a carrier end part 112 b.

As shown in fig. 15 and 22, the front portion (the portion of the turning wheels 155) of the conveyance start end portion 112a of the 2 nd carrier 112 is disposed below the rear portion (the portion of the turning wheels 156) of the conveyance start end portion 112a of the 2 nd carrier 112, and the conveyance start end portion 112a of the 2 nd carrier 112 is disposed in an inclined posture obliquely upward along the conveyance end portion 111b of the 1 st carrier 111.

The second carrier 112 is disposed in a substantially horizontal posture in side view from a rear portion (a portion of the turning wheels 156) of the conveyance start end portion 112a to a portion of the conveyance end portion 112 b.

(Structure of guide rail of embodiment 2)

As shown in fig. 15 and 22, a support frame 158 is supported in the front-rear direction on the upper portion of the left portion of the machine body 101, and a plurality of support rods 159 are supported by the support frame 158 so as to be movable up and down.

The guide rail 113 is formed by arranging short channel-shaped members in a row with the open side facing downward in the front-rear direction, and the adjacent front-rear channel-shaped members are connected to each other by a pin so as to be bent in the up-down direction.

The guide rail 113 protrudes rearward along the upper side of the 2 nd carrier 112. The pin connecting the channel-like member of the guide rail 113 is supported at the lower portion of the support rod 159, and the guide rail 113 (channel-like member) is supported so as to be movable up and down. The guide rail 113 is pressed against the 2 nd carrier 112, and includes a spring 160 for biasing the support rod 159 downward.

In the guide rail 113, the leading tunnel-like member on the conveyance start end 112a side of the 2 nd conveyance body 112 is a conveyance start end 113 a. The conveyance start end portion 113a of the guide rail 113 is positioned slightly rearward of the rear portion (the portion of the turning wheel 156) of the conveyance start end portion 112a of the 2 nd carrier 112.

According to the above configuration, when the trunk a1 of the crop a is sandwiched between the 2 nd carrier 112 and the guide rail 113 as described later (a state of the crop at the transfer section where the crop is transferred from the transport terminal end of the 1 st carrier to the transport start end of the 2 nd carrier), the guide rail 113 is bent by the trunk a1 of the crop a and lifted upward, and the trunk a1 of the crop a is sandwiched between the 2 nd carrier 112 and the guide rail 113 with a sufficient sandwiching force by the biasing force of the spring 160.

The guide member 161 made of a round bar material is attached to the conveyance start end portion 113a of the guide rail 113. The guide member 161 is projected forward along the 2 nd carrier 112, and is projected obliquely upward forward in side view from a rear portion (a portion of the turning wheel 156) of the conveyance start end portion 112a of the 2 nd carrier 112. The guide member 161 is attached to the conveyance starting end portion 113a of the guide rail 113, and thus the guide member 161 moves up and down integrally with the conveyance starting end portion 113a of the guide rail 113.

(positional relationship between the 1 st carrier, the 2 nd carrier, and the guide rail according to embodiment 2)

As shown in fig. 15, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the harvesting unit 103 is disposed in an inclined posture in which the front portion (the conveyance starting end portion 111a of the 1 st conveyance body 111) is low and the rear portion (the conveyance end portion 111b of the 1 st conveyance body 111) is high in a side view.

In this state, as shown in fig. 22 and 23, the conveyance end portion 111b of the 1 st conveyance body 111 and the conveyance start end portion 112a of the 2 nd conveyance body 112 are arranged to overlap in a plan view, and the conveyance start end portion 112a of the 2 nd conveyance body 112 is arranged at a position below the conveyance end portion 111b of the 1 st conveyance body 111 in a side view.

The 2 nd carrier 112 is disposed so that the left and right center portions 112c of the 2 nd carrier 112 (carrier start end portion 112a) are displaced to a position closer to the separating portion 105 (right side) in a plan view with respect to a virtual line B11 extending in the carrier direction of the 1 st carrier 111 from the portions of the left and right 1 st carriers 111 in contact with each other in an opposed manner.

As shown in fig. 12 and 14, the side surface 13a1 on the side closer to the separating portion 5 (right side) of the guide rail 13 is disposed between the side surface 12a1 on the side closer to the separating portion 5 (right side) and the side surface 12a2 on the side farther from the separating portion 5 (left side) of the 2 nd carrier 12 in plan view.

The rear portion (the portion of the turning wheels 156) of the conveyance starting end portion 112a of the 2 nd conveyance body 112 is arranged at a position on the rear side of the conveyance end portion 111b of the 1 st conveyance body 111 in side view. The guide member 161 and the conveyance start end portion 113a of the guide rail 113 are disposed at positions on the rear side of the conveyance end portion 111b of the 1 st conveyance body 111 in side view.

The conveyance terminal end portion 111b of the 1 st conveyance body 111 enters between the front end portion of the guide member 161 and the conveyance start end portion 112a of the 2 nd conveyance body 112 in a side view, and the front end portion of the guide member 161 is arranged at a position above the conveyance terminal end portion 111b of the 1 st conveyance body 11 in a side view.

As described above, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the positional relationship between the conveyance end portion 111b of the 1 st carrier 111 and the conveyance start end portion 112a of the 2 nd carrier 112 is appropriately set.

In the foregoing state, when the harvesting portion 103 is operated to be raised, the harvesting portion 103 swings upward around the support axis P' 11 that is spaced upward from the rear portion of the harvesting portion 103, whereby the rear portion of the harvesting portion 103 (the conveyance terminal end portion of the 1 st conveyance body) assumes a state of being spaced forward from the conveyance start end portion 112a of the 2 nd conveyance body 112.

When the harvesting portion 103 is lowered, the harvesting portion 103 swings downward around the support axis P' 11 that is spaced upward from the rear portion of the harvesting portion 103, the rear portion of the harvesting portion 103 (the conveyance terminal end portion 111b of the 1 st conveyance body 111) moves rearward to approach the conveyance starting end portion 112a of the 2 nd conveyance body 112, and the conveyance terminal end portion 111b of the 1 st conveyance body 111 and the conveyance starting end portion 112a of the 2 nd conveyance body 112 return to the appropriate positional relationship shown in fig. 22.

(configuration of posture changing part of embodiment 2)

As shown in fig. 15 and 16, a posture changing portion 162 is connected to an upper portion of the conveyance terminal end portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111.

As shown in fig. 22 and 23, the posture changing portion 162 includes a guide portion 163, a ring-shaped rotating body 164, and a claw body 165.

The guide unit 163 includes two sets of upper and lower portions, and is disposed obliquely from the conveyance end portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 to the conveyance start end portion 112a of the 2 nd conveyance body 112 on the side (right side) closer to the oblique separation portion 105 in plan view. In the guide portion 163, the side portion on the side (right side) closer to the separation portion 105 is a guide portion 163 a.

As shown in fig. 23, 24, and 25, a transmission shaft 166 is rotatably supported at the position of the axial center P' 2 of the guide portion 163, the drive shaft 152 is extended upward at the swing fulcrum portion 151, and the drive shaft 152 and the transmission shaft 166 are coupled via a coupling member 167.

Between the upper and lower guide portions 163, a drive sprocket 168 is rotatably supported, and a drive chain 169 is attached to the sprocket 166a of the drive shaft 166 and the drive sprocket 168.

Between the upper and lower guide portions 163, the driven sprocket 170 is rotatably supported, and the driven sprocket 171 is externally fitted to the transmission shaft 166 so as to be relatively rotatable. The chain-like annular rolling bodies 164 are mounted between the upper and lower guide portions 163 so as to extend over the drive sprocket 168 and the driven sprockets 170 and 171.

Accordingly, the power of the drive shaft 152 is transmitted to the drive sprocket 168 via the transmission shaft 166 and the transmission chain 169, the drive sprocket 168 is rotationally driven, and the endless rolling element 164 is rotationally driven in the clockwise direction in fig. 23.

The claws 165 are attached to the endless rotating body 164 at predetermined intervals in the moving direction of the endless rotating body 164. The claw 165 is attached to the endless rotating body 164 so as to be freely changeable in posture to an operating posture protruding outward from the endless rotating body 164 and an inactive posture falling down along the endless rotating body 164.

When the pawl 165 is rotationally driven in the clockwise direction in fig. 23 integrally with the ring rolling element 164, when the pawl 165 reaches the drive sprocket 168, the pawl 165 is operated in the inactive posture, and the driven sprocket 170 is operated from a position slightly close to the drive sprocket 168 in the active posture.

When the driven sprocket 170 is slightly operated to the acting posture, the pawl body 165 moves from the driven sprocket 171 to the driving sprocket 168 while maintaining the acting posture, and is operated to the non-acting posture when reaching the driving sprocket 168.

(positional relationship between the attitude changing section of embodiment 2 and the 1 st and 2 nd carriers and the guide rail)

As shown in fig. 15, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, as shown in fig. 22 and 23, the posture changing unit 162 is disposed over a position above the conveyance terminal end portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 and a position away from the conveyance terminal end portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 toward the rear side in a side view.

In this state, the posture changing unit 162 is disposed obliquely upward in side view from the position above the conveyance terminal end portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111, and overlaps the conveyance starting end portion 112a of the 2 nd conveyance body 112 and the guide rail 113 (support frame 158) in plan view.

In the posture changing unit 162, the guide unit 163a of the guide unit 163 is disposed obliquely on the closer side (right side) of the separating unit 105 in plan view from the conveyance terminal end portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 to the conveyance starting end portion 112a of the 2 nd conveyance body 112.

In the posture changing unit 162, the annular rotating body 164 is rotationally driven around the axial center in the vertical direction, and moves from the conveyance terminal end portion 111b (swing fulcrum portion 151) side of the 1 st conveyance body 111 to the conveyance starting end portion 112a side of the 2 nd conveyance body 112 to the position where the sprocket 168 is driven along the guide portion 163a of the guide portion 163.

As described above, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the positional relationship between the posture changing unit 162 and the conveyance starting end portion 112a of the 2 nd carrier 112 and the guide rail 113 (support frame 158) is appropriately set.

In the above state, when the harvesting unit 103 is operated to be raised, the harvesting unit 103 swings upward around the support axis P' 11 that is separated upward from the rear portion of the harvesting unit 103, and thereby the posture changing portion 162 moves to the obliquely lower side of the rear side, and is in a state of being located on the upper side of the support frame 158 along the support frame 158.

When the harvesting portion 103 is lowered, the harvesting portion 103 swings downward around the support axis P' 11 that is spaced upward from the rear portion of the harvesting portion 103, whereby the posture changing portion 162 moves toward the obliquely upper side of the front side, and the posture changing portion 162 and the conveyance leading end portion 112a of the 2 nd conveyance body 112 and the guide rail 113 (support frame 158) are restored to the appropriate positional relationship shown in fig. 22.

(construction of trunk support, trunk guide, stem guide, upper guide, rear guide, and dust cover in embodiment 2)

As shown in fig. 17 and 22, a flat plate-like trunk support portion 176 that receives the trunk a1 of the crop a from below and guides the trunk a to the rear side is disposed at a position on the far side (left side) from the separating portion 105 in plan view with respect to the conveyance starting end portion 112a of the 2 nd carrier 112. The trunk support section 176 extends from the rear portion (the portion of the turning wheel 156) of the conveyance start end section 112a of the 2 nd carrier 112 to the diagonally downward front side along the conveyance start end section 112a of the 2 nd carrier 112.

As shown in fig. 15 and 22, a round bar-shaped trunk guide 177 is disposed along the side surface of the 2 nd carrier 112 on the side (left side) farther from the separating unit 105 at the carrier start end 112a of the 2 nd carrier 112. The trunk guide 177 prevents the trunk a1 of the crop a from separating from the conveyance start end 112a of the 2 nd conveyance body 112.

As shown in fig. 22 and 23, a round rod-shaped stem guide 181 is provided between the conveyance terminal end portion 111b of the 1 st conveyance body 111 and the posture changing portion 162 in a side view. The stem guide 181 guides the stem of the crop a toward the conveyance starting end portion 112a (right side) of the 2 nd carrier 112.

A flat-plate-shaped upper guide 182 for guiding the upper portion of the crop a toward the conveyance starting end portion 112a of the 2 nd conveyance body 112 is provided at a position above the posture changing portion 162 in a side view.

A rear guide 183 is coupled to the front end of the support frame 158. The rear guide portion 183 is formed in a flat plate shape, and is set in an inclined posture so as to face the conveyance terminal end portion 111b side (left side) of the left 1 st conveyance body 111 in a plan view.

The dust cover 184 is attached to the body 101 so as to be positioned on the right side of the posture changing portion 162. The dust cover 184 is formed in a box shape from a plate material, and an opening 184a is opened in a left portion (a portion on the posture changing portion 162 side) of the dust cover 184.

(State of crop at the transfer section from the transfer terminal end of the 1 st carrier to the transfer start end of the 2 nd carrier in embodiment 2)

In the transfer section from the conveyance terminal end portion 111b of the 1 st conveyance body 111 to the conveyance start end portion 112a of the 2 nd conveyance body 112, the posture of the crop a in the standing posture is changed to the horizontal posture, and the trunk a1 of the crop a whose posture is changed from the conveyance terminal end portion 111b of the 1 st conveyance body 111 to the horizontal posture is sandwiched between the 2 nd conveyance body 112 and the guide rail 113.

The flow of the crop a in the above-described state is as follows.

As shown in fig. 15 and 16, in the harvesting unit 103, when the machine body 101 is moved forward in a state where the divider 148 is in contact with the field and the subsoil shovel 149 enters the field, the crop a in the field is divided by the divider 148, the field is excavated by the subsoil shovel 149, and the crop a in the field in the standing posture enters the conveyance starting end portions 111a of the left and right first conveyance bodies 111.

The crop a in the standing posture of the field is gripped from the left and right sides by the left and right 1 st carriers 111, the crop a is pulled out and lifted by the left and right 1 st carriers 111, and the crop a is conveyed obliquely upward and rearward along the harvesting section 103 while being maintained in the standing posture.

As shown in fig. 17, 22, and 23, when the crop a in the standing posture reaches the conveyance terminal end portion 111b of the 1 st conveyance body 111, the trunk a1 of the crop a is caught by the trunk support portion 176 from below, and the trunk a1 of the crop a enters between the conveyance start end portion 112a of the 2 nd conveyance body 112 and the trunk guide portion 177 and is guided to the conveyance start end portion 112a of the 2 nd conveyance body 112.

Next, in a state where crop a is held between the left and right 1 st carriers 111, crop a trunk a1 is held between the conveyance starting end 112a of the 2 nd carrier 112 and the trunk guide 177, and is in a state of being in contact with the conveyance starting end 112a of the 2 nd carrier 112, and crop a trunk a1 is in a state of being caught by the trunk support 176 from below.

In a state where the crop a is sandwiched between the left and right 1 st carriers 111, the stem of the crop a contacts the stem guide 181 and is guided to the conveyance starting end portion 112a side (right side) of the 2 nd carrier 112.

By the rotation of the claw bodies 165 (the endless rolling bodies 164) of the posture changing portion 162, the upper portion of the crop a enters between the claw bodies 165, and the upper guide portion 182 comes into contact with the upper portion of the crop a.

Thus, the crop a is conveyed to the rear side (the 2 nd carrier 112 side) by the left and right 1 st carriers 111, and the trunk a1 of the crop a is conveyed by the conveyance leading end 112a of the 2 nd carrier 112, and the trunk a1 of the crop a is in a slightly horizontal posture.

At the conveyance terminal end portion 111b of the 1 st conveyance body 111, the crop a passes through the right swing fulcrum portion 150 and the right swing support portion 138, and the passage C between the left swing fulcrum portion 151 and the left swing support portion 138 (see fig. 21 and 24).

The claw body 165 (the endless rolling body 164) of the posture changing unit 162 is rotationally driven, and thereby the upper portion of the crop a is pushed from the conveyance terminal end portion 111b of the 1 st conveyance body 111 to the conveyance start end portion 112a of the 2 nd conveyance body 112 along the guide portion 163a of the guide unit 163 by the claw body 165.

The guide 163a and the claw 165 of the guide 163 of the posture changing unit 162 change the posture of the crop a from the conveyance terminal end 111b of the first conveyance body 111 into a lateral posture in which the portion of the crop a with the fruit a2 is closer to the separation unit 105 (right side) with respect to the trunk a1 of the crop a. The upper guide portion 182 assists the above-described posture change of the crop a to the horizontal posture.

Next, the trunk a1 of the crop a which is separated to the rear side from the conveyance terminal end portion 111b of the 1 st conveyance body 111 and changed in posture to the horizontal posture by the posture changing portion 162 is sandwiched between the conveyance start end portion 112a of the 2 nd conveyance body 112 and the trunk guide portion 177, and is mounted on the conveyance start end portion 112a of the 2 nd conveyance body 112.

At the same time, the upper portion of the crop a enters the opening 184a of the dust cover 184 in a poured manner, and the upper portion of the crop a is guided toward the opening 184a of the dust cover 184 by the rear guide 183.

Next, the trunk a1 of the crop a in the horizontal posture is guided between the 2 nd carrier 112 and the conveyance starting end portion 113a of the guide rail 113 by the guide member 161, sandwiched between the 2 nd carrier 112 and the guide rail 113, and conveyed to the rear side in the horizontal posture by the 2 nd carrier 112 and the guide rail 113.

(other embodiment of embodiment 2)

The harvesting unit 103 (the 1 st carrier 111), the 2 nd carrier 112, and the guide rail 113 may be provided on the right portion of the front portion of the body 101.

According to this configuration, the separating portion 105 is provided on the left side of the 2 nd carrier 112 and the guide rail 113. A hydraulic cylinder 141 and a load support portion 172 are provided on the right portion of the front portion of the machine body 1.

The entry preventing member 178 is attached to the right portion of the harvesting portion 103, and contact preventing members 179 and 180 are attached to the front and rear portions of the right lateral portion of the machine body 101.

The entrance prevention member 178 may be attached to the harvesting unit 103 and also to the machine body 101. According to this structure, when the harvesting unit 3 is lifted, the entry prevention member 178 remains in the vicinity of the position shown in fig. 15.

The posture changing unit 162 may be constituted by the guide portion 163 without the annular rolling member 164 and the claw 165.

Instead of the crawler type traveling device 102, a traveling device 102 having a plurality of traveling wheels (not shown) may be used.

[ embodiment 3]

An embodiment (embodiment 3) as an example of the present invention will be described below with reference to the drawings.

Fig. 28 to 41 show a green soybean harvester as an example of a crop harvester.

In fig. 28 to 41, F denotes the "front direction" of the body 201, B denotes the "rear direction" of the body 201, U denotes the "upper direction" of the body 201, and D denotes the "lower direction" of the body 201. R represents the "right direction" of the body 201, and L represents the "left direction" of the body 201.

(Overall Structure of Green soybean harvester of embodiment 3)

As shown in fig. 28 and 29, the body 201 is supported by a left-right crawler type traveling device 202, a harvesting portion 203 is provided at the left part of the front portion of the body 201, and a steering portion 204 is provided at the right part of the front portion of the body 201.

A separation part 205 is provided at the rear part of the machine body 201, a2 nd carrier 209 (corresponding to a carrier) and a guide rail 213 are provided on the left side of the separation part 205, a support table 206 and a working deck (deck) 207 are provided on the right part of the machine body 201, and a collection box 217 is placed on the support table 206.

(structure of reaping part of embodiment 3)

As shown in fig. 28, 29, and 30, in the front portion of the harvesting section 203, the left and right driven wheels 245 are rotatably supported around an axis P' in an oblique upward-downward direction. At the rear of the harvesting section 203, left and right drive wheels 246 are supported so as to be rotatable around an axial center P' in an oblique upward and downward direction for two revolutions. In this case, the axis P '1 and the axis P' 2 are parallel to each other.

A right 1 st conveyance body 208 made of a rubber belt is attached to the right driven wheel 245 and the right driving wheel 246. A left 1 st conveyance body 208 made of a rubber belt is attached to the left driven wheel 245 and the left driving wheel 246.

The left and right No. 1 carriers 208 are fitted over the entire length of the harvesting section 203. The plurality of rollers 247 are rotatably supported by the harvesting unit 203, and the rollers 247 support the 1 st carrier 208 on the opposite side of the engaging portion (the portion between the crops a). A left-right divider 248 and a subsoiler 249 are mounted to the front of the harvesting section 203.

The harvesting unit 203 is supported in a front-rear direction at a left portion of the front portion of the machine body 201 in a posture inclined in a side view such that the front portion of the harvesting unit 203 is positioned on a lower side and the rear portion of the harvesting unit 203 is positioned on an upper side.

In the 1 st carrier 208, the vicinity of the driven wheel 245 is a carrier start end portion 208a, and the vicinity of the driving wheel 246 is a carrier end portion 208 b. Thus, the left and right 1 st carrier bodies 208 linearly extend obliquely upward and rearward from the carrier start end portion 208a to the carrier end portion 208b of the 1 st carrier body 208 without twisting.

(Structure of separation part in embodiment 3)

As shown in fig. 28, 29, and 30, the separating unit 205 is provided in the body 201. The separation unit 205 is provided with a1 st upper rotating body 211 (corresponding to an upper rotating body), a1 st lower rotating body 212 (corresponding to a lower rotating body), a2 nd upper rotating body 221 (corresponding to an upper rotating body), and a2 nd lower rotating body 222 (corresponding to a lower rotating body).

In the separation section 205, a recovery conveyor 210 arranged in the front-rear direction is provided below the 1 st upper rotating body 211 and the 1 st lower rotating body 212, and the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222.

A conveying conveyor 214 is provided below a rear portion of the collecting conveyor 210 in the lateral direction, a discharge conveyor 215 is provided at a predetermined interval from the rear portion of the collecting conveyor 210 to the rear side, and a fan vehicle 216 is provided below the collecting conveyor 210.

As shown in fig. 30 and 33, wall portions 243 and 244 are provided on the right side of the separating portion 205. The wall portion 243 is disposed in the front-rear direction in plan view, and the wall portion 244 is disposed at an inclination intersecting the front-rear direction in plan view. Wall portions 240 and 229 are provided on the left side of the separation portion 205. Wall portions 240 and 229 are arranged in the front-rear direction in plan view, and an opening 230 is provided between upper wall portion 240 and lower wall portion 229 in the front-rear direction.

(structure of the 1 st upper and lower rotators and the 2 nd upper and lower rotators of embodiment 3)

As shown in fig. 30, 33, and 34, the 1 st upper rotating body 211 (the 1 st lower rotating body 212, the 2 nd upper rotating body 221, and the 2 nd lower rotating body 222) is provided with a shaft portion 218 and two striking portions 219.

The shaft portion 218 is formed in a hexagonal shaft shape. The striking portion 219 is formed in a flat plate shape, is connected to the shaft portion 218 with a phase difference of 180 degrees therebetween, and extends outward in the radial direction. A rim 220 made of hard rubber is attached to an outer end of the striking part 219.

As shown in fig. 34, the diameter D1 of the rotation locus of the 1 st upper rotation body 211 is set to be the same as the diameter D1 of the rotation locus of the 1 st lower rotation body 212. The diameter D1 of the rotation trajectory of the 2 nd upper rotation body 221 and the diameter D1 of the rotation trajectory of the 2 nd lower rotation body 222 are set to be the same, and the diameter D1 of the rotation trajectory of the 2 nd upper rotation body 221 (the 2 nd lower rotation body 222) is set to be slightly smaller than the diameter D1 of the rotation trajectory of the 1 st upper rotation body 211 (the 1 st lower rotation body 212).

(arrangement of the 1 st upper and lower rotators and the 2 nd upper and lower rotators in embodiment 3.)

As shown in fig. 30, 33, and 34, the 1 st upper rotating body 211 is supported by a bearing 223 so as to extend over the wall portion 244 and the wall portion 240 so as to be freely rotatable around the 1 st upper axial center P' 11 (corresponding to the upper axial center).

The 1 st lower rotating body 212 is supported by the bearing 223 so as to freely rotate around the 1 st lower axis P ' 12 (corresponding to the lower axis) along the 1 st upper axis P ' 11, below the 1 st upper axis P ' 11, throughout the wall portion 244 and the wall portion 229.

The 2 nd upper rotating body 221 is supported by the bearing 223 so as to freely rotate around the 2 nd upper axial center P' 21 (corresponding to the upper axial center) over the wall portion 244 and the wall portion 240.

The 2 nd lower rotating body 222 is supported by the bearing 223 around the 2 nd lower axis P ' 22 (corresponding to the lower axis) along the 2 nd upper axis P ' 21, rotatably throughout the wall portion 244 and the wall portion 229, on the lower side of the 2 nd upper axis P ' 21.

As shown in fig. 30, the 1 st upper rotating body 311 and the 1 st lower rotating body 312 are disposed closer to (on the front side of) the conveyance starting end portion 309a of the 2 nd conveying body 309 than the 2 nd upper rotating body 321 and the 2 nd lower rotating body 322 (see later-described (overall configuration of the 2 nd conveying body)).

The portions of 1 st upper rotating body 211 and 1 st lower rotating body 212 on the 2 nd conveying body 209 side are arranged such that 1 st upper rotating body 211 and 1 st lower rotating body 212 (1 st upper axial center P '11 and 1 st lower axial center P' 12) are inclined (crossed) with respect to 2 nd conveying body 209 in plan view, so that the portions are located on the conveying start end portion 209a side (front side) of 2 nd conveying body 209, compared to the portions of 1 st upper rotating body 211 and 1 st lower rotating body 212 on the opposite side to 2 nd conveying body 209.

The 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 (the 2 nd upper axial center P '21 and the 2 nd lower axial center P' 22) are arranged obliquely (cross) with respect to the 2 nd conveying body 209 in plan view, so that portions on the 2 nd conveying body 209 side of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 are positioned closer to the conveying start end portion 209a side (front side) of the 2 nd conveying body 209 than portions on the opposite side of the 2 nd conveying body 209 of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222.

Compared to angle B21 of 1 st upper and lower rotating bodies 211 and 212 (1 st upper and 1 st lower axial centers P '11 and P' 12) and 2 nd conveying body 209, angle B22 of 2 nd upper and lower rotating bodies 221 and 222 (2 nd upper and 2 nd lower axial centers P '21 and P' 22) and 2 nd conveying body 209 is set to be larger.

A drive shaft 225 is connected to a portion of the shaft portion 218 of the 1 st upper rotating body 211 (the 2 nd upper rotating body 221) on the opposite side of the 2 nd carrier 209 via a transmission shaft 224, and the 1 st upper rotating body 211 (the 2 nd upper rotating body 221) is rotationally driven in a rotational direction C1 by the power of the drive shaft 225 (see fig. 34).

A drive shaft 225 is connected to a portion of the shaft portion 218 of the 1 st lower rotor 212 (the 2 nd lower rotor 222) opposite to the 2 nd carrier 209 via a transmission shaft 224, and the 1 st lower rotor 212 (the 2 nd lower rotor 222) is rotationally driven in a rotational direction C2 opposite to the rotational direction C1 by power of the drive shaft 225 (see fig. 34).

(Structure of attitude changing part and dust cover of embodiment 3)

As shown in fig. 28, 29, and 32, a posture changing unit 262 is attached to an upper portion of the conveyance terminal end portion 208b of the 1 st conveyance body 208. The posture changing portion 262 is provided with a guide portion 263, a ring rotator 264, and a claw 265.

The guide portion 263 includes two sets of upper and lower portions, protrudes rearward from the conveyance terminal end portion 208b of the 1 st conveyance body 208, and is disposed obliquely on the side (right side) closer to the obliquely separating portion 205 in plan view.

The power transmitted to the 1 st carrier 208 (the drive wheel 246) is branched and transmitted to the endless rolling element 264, and the endless rolling element 264 is rotationally driven in the clockwise direction in fig. 29. The claws 265 are attached to the ring rotator 264 at predetermined intervals in the moving direction of the ring rotator 264, and are rotationally driven in the clockwise direction in fig. 29 integrally with the ring rotator 264.

The dust cover 226 is provided so as to be positioned on the right side of the posture changing portion 262. The dust cover 184 is formed in a box shape by combining plate members, and an opening 226a is opened at the left portion of the dust cover 226.

The dust cover 226 corresponds to an inlet of the separating portion 205, and as described later (in a state of a harvesting portion in a flow of the whole harvesting process of the green soybean harvester), the crop a falls into an upper portion of the dust cover 226 and enters the opening portion 226a of the dust cover 226, and enters the separating portion 205 from the dust cover 226.

(entire structure of the 2 nd carrier in embodiment 3)

As shown in fig. 28, 31, and 32, a drive mechanism 227 is supported at the left portion of the machine body 201, and a drive sprocket 227a that is rotationally driven about an axial center in the left-right direction is provided in the drive mechanism 227. The rotation wheels 255 and 256 are rotatably supported about the center in the left-right direction at the front portion of the left portion of the body 201, and the rotation wheel 257 is rotatably supported about the center in the left-right direction at the rear portion of the left portion of the body 201.

The 2 nd carrier 209 is attached to the drive sprocket 227a and the rotary wheels 255, 256, and 257 of the drive mechanism 227, and the 2 nd carrier 209 is disposed in the front-rear direction on the left portion (left side of the separating unit 205) of the body 201. The 2 nd carrier 209 is driven to rotate clockwise in fig. 28 and 31 by the drive sprocket 227a of the drive mechanism 227.

The 2 nd carrier 209 projects rearward from the carrying terminal end 208b of the 1 st carrier 208, and the part of the 2 nd carrier 209 between the rotor 255 and the rotor 256 is a carrying start end 209a, and the vicinity of the rotor 257 is a carrying terminal end 209 b.

The front portion (the part of the turning wheels 255) of the conveyance start end portion 209a of the 2 nd conveyance body 209 is disposed below the rear portion (the part of the turning wheels 256) of the conveyance start end portion 209a of the 2 nd conveyance body 209, and the conveyance start end portion 209a of the 2 nd conveyance body 209 is disposed in an obliquely upward inclined posture along the lower side of the conveyance end portion 208b of the 1 st conveyance body 208.

The 2 nd transport body 209 is disposed in a substantially horizontal posture in side view from a rear portion (a portion of the rotor 256) of the transport start end portion 209a to a portion of the transport end portion 209 b.

(specific configuration of the 2 nd carrier in embodiment 3)

As shown in fig. 35, 36, 39, and 40, the 2 nd carrier 209 is provided with a1 st part 231, a2 nd part 232, a connecting part 233, a pin 234, and a sleeve (カラー) 235.

The 1 st part 231 is formed in an elongated flat plate shape (rod shape), and a1 st protrusion 231a having a triangular shape in a side view is provided at a front-rear center portion.

The 2 nd part 232 is formed in an elongated flat plate shape (rod shape) like the 1 st part 231, and is provided at a front-rear center portion with a triangular 2 nd protrusion 232a in a side view.

The connecting portion 233 is formed in an elongated flat plate shape (rod shape) like the 2 nd portion 232, and is formed in the same length as the 2 nd portion 232, but is not provided with a protrusion.

The 1 st parts 231 are alternately arranged in the left-right direction, and the front and rear parts of the 1 st parts 231 overlap. The 2 nd parts 232 and the connecting parts 233 are alternately arranged in the left-right direction while the front and rear parts of the 2 nd parts 232 and the connecting parts 233 coincide. In a state where the bushing 235 is disposed between the 1 st part 231 and the 2 nd part 232, the pin 234 is inserted, and the pin 234 is attached to the 1 st part 231 and the 2 nd part 232 (the connecting part 233).

Thereby, the 1 st part 231 is connected by the pin 234, the 2 nd part 232 and the connecting part 233 are connected by the pin 234, and the 2 nd carrier 209 is configured in an annular chain shape. The 1 st part 231 and the 2 nd part 232 (connection part 233) are disposed at intervals corresponding to the length of the sleeve 235, and the 1 st part 231 and the 2 nd part 232 (connection part 233) can be freely bent at the pin 234.

(arrangement of the 2 nd carrier in embodiment 3)

As shown in fig. 35, 38, and 39, an elongated support member 228 is coupled to an upper portion of the wall portion 229 at positions of the turning wheels 255 and 257, and the pins 234 and the sleeves 235 are mounted on the support member 228 on the 2 nd carrier 209. Thus, the rear portion (the portion of the rotor 256) of the conveyance starting end portion 209a of the 2 nd conveyance body 209 and the portion of the conveyance end portion 209b are arranged in a substantially horizontal posture in side view.

When the 2 nd carrier 209 is rotationally driven by the driving mechanism 227, the pin 234 and the sleeve 235 move along the support member 228, and thereby the 1 st part 231 and the 2 nd part 232 (the connecting part 233) move from the position of the rotor 255 to the position of the rotor 257.

As shown in fig. 35, 39, and 40, in the 2 nd carrier 209, the 1 st part 231 is disposed on the left side of the support member 228 and on the side farther from the separating portion 205. The 2 nd portion 232 and the connecting portion 233 are disposed on the right side of the support member 228, on the side closer to the separating portion 205, and slightly enter the opening portion 230.

The supporting member 228 is interposed between the 1 st part 231 and the 2 nd part 232 (the connecting part 233) in a front view, and the position of the 2 nd carrier 209 (the 1 st part 231, the 2 nd part 232, and the connecting part 233) in the left-right direction is determined by the supporting member 228.

The 1 st segment 231 is arranged in line in the moving direction of the 2 nd carrier 209, and the 1 st projection 231a of the 1 st segment 231 is provided at a1 st interval W1. The 1 st projection 231a of the 1 st part 231 projects upward (toward the guide rail 213) at a position corresponding to the rotation wheel 255 and at a position corresponding to the rotation wheel 257.

The 2 nd parts 232 and the connecting parts 233 are arranged in line in the moving direction of the 2 nd carrier 209, and the 2 nd protrusions 232a of the 2 nd parts 232 are provided at the 2 nd interval W2. The 2 nd projection 232a of the 2 nd part 232 projects upward (toward the guide rail 213) at positions corresponding to the rotation wheel 255 and the rotation wheel 257.

The connection portion 233 is disposed between the 2 nd and 2 nd portions 232 and 232, and thus, the 2 nd interval W2 is greater than the 1 st interval W1. In this case, the 2 nd part 232 and the connecting part 233 are the same length, so the 2 nd interval W2 is 2 times the 1 st interval W1.

(Structure of guide rail of embodiment 3)

As shown in fig. 28, 31, and 32, the guide rail 213 is disposed along the upper side of the 2 nd carrier 209, and the 1 st rail portion 241, the 2 nd rail portion 242, and the pin 236 are provided on the guide rail 213.

As shown in fig. 35, 37, 38, and 39, the plate material is bent in a channel shape to form the 1 st rail portion 241, and the 1 st rail portion 241 is provided with an upper side portion 241a and lateral side portions 241b and 241c extending downward from the upper side portion 241 a. In the 1 st rail portion 241, the front-rear length of the lateral side portions 241b, 241c is longer than the front-rear length of the upper side portion 241a, and a circular hole-shaped opening portion 241d is opened in a portion of the lateral side portions 241b, 241c extending from the upper side portion 241 a.

Plate-like right and left 2 nd rail portions 242 are provided, and a long hole-like opening portion 242a is opened in the 2 nd rail portion 242. The 2 nd track portion 242 enters the 1 st track portion 241, and the 1 st track portion 241 and the 2 nd track portion 242 are joined.

The 1 st rail portion 241 and the 2 nd rail portion 242 connected as described above are arranged along the 2 nd carrier 209. In the 1 st rail portion 241 and the 2 nd rail portion 242 arranged in the front-rear direction, the 2 nd rail portion 242 is inserted inside the lateral side portions 241b and 241c of the 1 st rail portion 241, and the pin 236 is attached to the opening portion 241d of the 1 st rail portion 241 and the opening portion 242a of the 2 nd rail portion 242.

Thereby, the 1 st rail portion 241 and the 2 nd rail portion 242 are connected by the pin 236 and can be bent at the pin 236.

As shown in fig. 28, 31, and 32, a guide member 261 made of a round bar material is attached to the 1 st rail portion 241 at the leading end of the 2 nd carrier 209 on the conveyance leading end 209a side at the guide rail 213. The guide member 261 projects forward along the 2 nd carrier 209, and projects forward obliquely upward in side view from a rear portion (a portion of the turning wheel 256) of the conveyance start end portion 209a of the 2 nd carrier 209.

The guide member 252 made of a round bar material is attached to the 1 st rail portion 241 at the rear end of the 2 nd carrier 209 on the side of the carrier terminal end portion 209b on the guide rail 213. The guide member 252 projects rearward along the 2 nd carrier 209, and obliquely downward and rearward from the carrier terminal end portion 209b (the portion of the rotary wheel 257) of the 2 nd carrier 209 in side view.

(supporting structure of guide rail of embodiment 3)

As shown in fig. 31 and 32, a support frame 258 is supported in the front-rear direction at the upper portion of the left portion of the machine body 201. As shown in fig. 35, 37, 38, and 39, a tubular guide member 237 is vertically attached to the support frame 258, and a support rod 259 is vertically inserted into the guide member 237.

An annular stopper member 238 and a fixing pin 239 are attached to the upper end of the support rod 259. The stopper member 238 and the fixing pin 239 collide with the upper end portion of the guide member 237, thereby determining the lower limit position of the vertical movement of the support rod 259.

A connecting member 250 is connected to the lower end of the support rod 259. The coupling member 250 includes a circular receiving portion 250a, a stopper portion 250b in which an edge portion of the receiving portion 250a is bent upward, and a lateral portion 250c in which an edge portion of the receiving portion 250a is bent downward.

As described above (configuration of the guide rail), when the pin 236 is attached to the opening 241d of the 1 st rail portion 241 and the opening 242a of the 2 nd rail portion 242, the pin 236 is also inserted into the opening of the lateral side portion 250c of the connection member 250, and the connection member 250 (the support rod 259) is connected to the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242).

A receiving member 251 is attached to a lower end portion of the guide member 237, a spring 260 is attached to the receiving portion 250a of the connecting member 250 and the receiving member 251, and the support rod 259 is biased toward the 2 nd carrier 209 (lower side) by the spring 260.

In a state where the support rod 259 is at the lower limit position, the spring 260 is slightly compressed from the free length, and an initial force is generated in the spring 260. The detachment of the spring 260 from the receiving portion 250a of the link member 250 is prevented by the detachment prevention portion 250b of the link member 250.

(positional relationship between the second carrier and the guide rail in embodiment 2 of embodiment 3)

As shown in fig. 28 and 31, in the guide rail 213, the first 1 st rail portion 241 on the conveyance start end 209a side of the 2 nd conveyance body 209 is the conveyance start end 213a, and the second 2 nd rail portion 242 on the rear end on the conveyance terminal end 209b side of the 2 nd conveyance body 209 is the conveyance terminal end 213 b.

As shown in fig. 31 and 32, the conveyance start end portion 213a of the guide rail 213 is located slightly behind the rear portion (the portion of the rotor 256) of the conveyance start end portion 209a of the 2 nd carrier 209 in side view. The conveyance terminal end portion 213b of the guide rail 13 is located slightly forward of the conveyance terminal end portion 209b of the 2 nd conveyance body 209 (the portion of the rotary wheel 257) in side view.

As shown in fig. 39, the portions of the guide rail 213 closer to the separating portion 205 (the lateral side portion 241c of the 1 st rail portion 241 and the right 2 nd rail portion 242) are disposed on the side (left side) farther from the separating portion 205 with respect to the 2 nd portion 232 and the connecting portion 233 of the 2 nd carrier 209 in the rear view and the plan view, and are disposed between the 1 st portion 231, the 2 nd portion 232, and the connecting portion 233 of the 2 nd carrier 209.

The portions of the guide rail 213 on the farther side from the separating unit 205 (the lateral side portion 241b of the 1 st rail portion 241 and the left 2 nd rail portion 242) are disposed on the farther side (left side) from the separating unit 205 with respect to the 1 st portion 231 of the 2 nd carrier 209 in the rear view and the plan view.

Thus, the 1 st part 231 of the 2 nd carrier 209 is disposed between the lateral sides 241b and 241c of the 1 st rail part 241 of the guide rail 213 and the 2 nd rail part 242 in the rear view and the plan view.

As shown in fig. 38 and 39, in a state where the support rod 259 is located at the lower limit position, the lateral portion 241c of the 1 st rail portion 241 and the lower end portion of the 2 nd rail portion 242 of the guide rail 213 are slightly separated upward from the pin 234 and the sleeve 235 of the 2 nd carrier 209.

When the support rod 259 is positioned at the lower limit position, the lateral sides 241b and 241c of the 1 st rail portion 241 and the 2 nd rail portion 242 of the guide rail 213, and the 1 st protrusion 231a of the 1 st portion 231 and the 2 nd protrusion 232a of the 2 nd portion 232 of the 2 nd carrier 209 overlap each other in a side view.

(State at the harvesting part in the flow of the entire harvesting of the green soybean harvester of embodiment 3)

As for the entire flow of harvesting of the green soybean harvester, the states of the respective parts are described in this item (states of the collecting conveyor, the carrying conveyor, and the discharging conveyor at the separation part in the flow of the entire harvesting of the green soybean harvester) in order as follows.

As shown in fig. 28 and 29, in the harvesting section 203, when the machine body 201 is advanced in a state where the cutter 248 is in contact with the field and the subsoiler 249 enters the field, the crop a in the field is separated by the cutter 248, the field is excavated by the subsoiler 249, and the crop a in the field standing posture enters the conveyance starting end portions 208a of the left and right first conveyance bodies 208.

The crop a in the standing posture of the field is gripped from the left and right sides by the left and right 1 st carriers 208, the crop a is pulled out and lifted by the left and right 1 st carriers 208, and the crop a is conveyed obliquely upward and rearward along the harvesting section 203 while maintaining the standing posture.

When the crop a reaches the conveyance terminal end portion 208b of the 1 st conveyance body 208, the posture of the crop a in the standing posture is changed to the horizontal posture on the side of the separation portion 205 by the posture changing portion 262 at the transfer portion from the conveyance terminal end portion 208b of the 1 st conveyance body 208 to the conveyance starting end portion 209a of the 2 nd conveyance body 209, and the upper portion of the crop a enters the opening portion 226a of the dust cover 226 in a tilted state.

(conveyance state of crop by the 2 nd conveyance body and guide rail in the flow of whole harvesting of green soybean harvester in embodiment 3)

As the crop a falls into the opening 226a of the dust cover 226, the trunk a1 of the crop a is transferred to the conveyance start end 209a of the 2 nd conveyance body 209, and the trunk a1 of the crop a in the horizontal posture is clamped between the conveyance start end 209a of the 2 nd conveyance body 209 and the conveyance start end 213a of the guide rail 213 while being guided by the guide member 261.

As shown in fig. 31 and 32, when the trunk a1 of the crop a is held between the 2 nd carrier 209 and the guide rail 213, the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242) is bent and lifted upward by the trunk a1 of the crop a, and the trunk a1 of the crop a is held between the 2 nd carrier 209 and the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242) with a sufficient holding force by the biasing force of the spring 260.

When the 2 nd carrier 209 is rotationally driven in a state where the trunk a1 of the crop a in the horizontal posture is sandwiched between the 2 nd carrier 209 and the guide rail 213, the trunk a1 of the crop a is carried rearward by the 2 nd carrier 209 (the 1 st projection 231a of the 1 st part 231 and the 2 nd projection 232a of the 2 nd part 232), so that the crop a enters the inside of the separation section 205 from the opening 230 of the separation section 205 and is carried from the carrying start end portion 209a of the 2 nd carrier 209 to the carrying end portion 209 b.

(the state of the crop when conveyed by the second conveyance body and the guide rail in the flow of the entire green soybean harvesting machine of embodiment 3)

When the trunk a1 of the crop a is conveyed to the rear side by the 2 nd carrier 209, as shown in fig. 40 and 41, a portion of the trunk a1 of the crop a, which is farther from the separation part 205, may be positioned between the 1 st protrusion 231a and the 1 st protrusion 231a of the 2 nd carrier 209 (the 1 st part 231) in the moving direction of the 2 nd carrier 209.

A portion of the trunk a1 of the crop a near the separation part 205 may be positioned between the 2 nd protrusion 232a and the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd part 232 and the connecting part 233) in the moving direction of the 2 nd carrier 209.

The portion of the trunk a1 of the crop a located farther from the separation section 205 and the portion of the separation section 205 are located between the 2 nd carrier (the 1 st part 231, the 2 nd part 232, and the connecting section 233) and the guide rail 213 (the 1 st rail part 241 and the 2 nd rail part 242) in the vertical direction.

The 2 nd interval W2 of the 2 nd protrusion 232a of the 2 nd carrier (the 2 nd part 232 and the connecting part 233) is set to be larger than the 1 st interval W1 of the 1 st protrusion 231a of the 2 nd carrier (the 1 st part 231).

The portion of the trunk a1 of the crop a farther from the separating unit 205 is movable between the 1 st protrusion 231a and the 1 st protrusion 231a of the 2 nd carrier 209 (1 st portion 231) in the upward and downward directions of the 2 nd carrier 209 with respect to the 2 nd carrier 209 in the moving direction of the 2 nd carrier 209.

In this case, the 1 st interval W1 is small, and thus the moving range of the portion of the trunk a1 of crop a that is farther from the separation part 205 is small.

The portion of the trunk a1 of the crop a closer to the separation part 205 is movable between the 2 nd projection 232a and the 2 nd projection 232a of the 2 nd carrier 209 (the 2 nd part 232 and the connecting part 233) in the upper and lower directions of the movement direction of the 2 nd carrier 209 with respect to the 2 nd carrier 209.

In this case, the 2 nd interval W2 is large, and thus the range of movement of the part of the trunk a1 of crop a near the separation section 205 is large.

Thus, the portion of the trunk a1 of the crop a that is closer to the separation part 205 can move upward and downward between the 2 nd protrusion 232a and the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd portion 232 and the connection part 233) in the moving direction of the 2 nd carrier 209, with the vicinity of the 1 st portion 231 of the 2 nd carrier 209 (the portion of the trunk a1 of the crop a that is farther from the separation part 205) as a fulcrum.

The connecting portion 233 is located at the crop a on the conveyance starting end portion 209a side of the 2 nd conveyance body 209 with respect to the portion of the trunk a1 of the crop a near the separation portion 205, and the upper portion of the crop a is in a state of being easily moved (in a state of being easily vibrated) in a range D1 near the conveyance starting end portion 209a side of the 2 nd conveyance body 209.

The connecting portion 233 is located on the crop a on the conveyance terminal end portion 209b side of the 2 nd conveyance body 209 with respect to the portion of the trunk a1 of the crop a near the separation portion 205, and the upper portion of the crop a is in a state of being easily movable (in a state of being easily vibrated) in a range D2 near the conveyance terminal end portion 209b side of the 2 nd conveyance body 209.

In this case, when the upper portion of the crop a attempts to move (vibrates) over the ranges D1 and D2, the portion of the trunk a1 of the crop a near the separation part 205 is stopped by the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd part 232 and the connecting part 233), and the movement (vibration) of the upper portion of the crop a is stopped.

As shown in fig. 41, since the lateral side portions 241c, 242c of the 1 st rail portion 241 of the guide rail 213 and the 2 nd rail portion 242 do not exist directly above the 2 nd carrier 209 (the 2 nd portion 232 and the connecting portion 233), the upper portion of the crop a is easily moved from the horizontal posture to the upper range D3 (easily vibrated state).

In this case, when the upper portion of the crop a attempts to move (vibrates) over the range D3, the portion of the trunk a1 of the crop a that is close to the separating portion 205 is stopped by the 2 nd carrier 209 (the 2 nd portion 232 and the connecting portion 233) (by the lateral portion 241c of the 1 st rail portion 241 of the guide rail 213 and the 2 nd rail portion 242), and the movement (vibration) of the upper portion of the crop a is stopped.

(the state at the separation section (the 1 st upper and lower rotating bodies, the 2 nd upper and lower rotating bodies) in the flow of the whole green soybean harvesting machine of embodiment 3)

As shown in fig. 29 and 30, when the crop a in the horizontal posture is conveyed to the rear side by the 2 nd conveyance body 209 and the guide rail 213, the crop a first enters between the 1 st upper rotation body 211 and the 1 st lower rotation body 212 at the separation portion 205.

As shown in fig. 34, the striking part 219 of the 1 st upper rotating body 211 and the striking part 219 of the 1 st lower rotating body 212 alternately repeat the collision with the crop a, and the crop a is pushed toward the conveyance starting end 209a of the 2 nd conveying body 209, and the fruit a2 is separated from the crop a and falls down to the collecting conveyor 210 (see the above-described (structure of the separating part in embodiment 3)).

Next, the crop a enters between the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222. The hitting portion 219 of the 2 nd upper rotating body 221 and the hitting portion 219 of the 2 nd lower rotating body 222 alternately and repeatedly collide with the crop a, and the crop a is pushed toward the conveyance starting end portion 209a of the 2 nd conveyance body 209, and the fruit a2 is separated from the crop a and falls to the collecting conveyor 210.

The 1 st upper rotating body 211 and the 1 st lower rotating body 212 are disposed to be inclined at an angle B21 with respect to the 2 nd carrier 209. The 2 nd upper rotator 221 and the 2 nd lower rotator 222 are disposed to be inclined at an angle B22 with respect to the 2 nd carrier 209.

The rotation direction C1 of the 1 st upper rotor 211 (the 2 nd upper rotor 221) and the rotation direction C2 of the 1 st lower rotor 212 (the 2 nd lower rotor 222) are set (see the above (arrangement of the 1 st upper rotor and the 1 st lower rotor, and the 2 nd upper rotor and the 2 nd lower rotor in embodiment 3)).

Accordingly, when the striking part 219 of the 1 st upper rotating body 211 (the 2 nd upper rotating body 221) and the striking part 219 of the 1 st lower rotating body 212 (the 2 nd lower rotating body 222) collide with the crop a, a component force is generated to pull out the crop a from the trunk a1 side (the 2 nd carrier 209 side) to the upper side in a state where the trunk a1 of the crop a is held between the 2 nd carrier 209 and the guide rail 213, and therefore the crop a can be easily separated from the fruit a2 without being bent by being compressed and bent toward the trunk a1 side.

As shown in fig. 40 and 41, the above description (the state of the crop when being transported by the 2 nd transport body and the guide rail in the flow of the entire green soybean harvesting machine according to embodiment 3) shows a state in which the upper portion of the crop a is likely to move in the ranges D1, D2, and D3 (a state in which the crop is likely to vibrate).

Accordingly, when the striking part 219 of the 1 st upper rotating body 211 (the 2 nd upper rotating body 221) and the striking part 219 of the 1 st lower rotating body 212 (the 2 nd lower rotating body 222) collide with the crop a, even if a large separating action is applied to the upper part of the crop a, the upper part of the crop a moves (vibrates) in the ranges D1, D2, and D3, whereby a large separating action can be released from the upper part of the crop a, and a state in which the upper part (stem) of the crop a is bent can be avoided.

(the state under the recovery conveyor, the carrying conveyor and the discharge conveyor at the separation part in the flow of the whole harvesting of the green soybean harvester of embodiment 3)

As shown in fig. 28, 29, and 30, the 1 st upper rotating body 211 and the 1 st lower rotating body 212, and the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 separate the fruit a2 from the crop a, and the separated fruit a2 falls to the collecting conveyor 210. When the fruit a2 is separated from the crop a, the crushed pieces such as leaves are also separated together and fall toward the collecting conveyor 210.

When the crop a from which the fruit a2 has been separated is conveyed to the rear side and the conveyance terminal end portion 213b of the guide rail 213 is detached, the crop a is sandwiched between the 2 nd conveyor 209 and the guide member 252 and is discharged to the field from the conveyance terminal end portion 209b of the 2 nd conveyor 209 and the guide member 252.

The recovery conveyor 210 is rotationally driven rearward, and the fruit a2 and the trash falling down to the recovery conveyor 210 are conveyed rearward by the recovery conveyor 210, and fall down from the rear of the recovery conveyor 210 to the conveying conveyor 214.

The conveyance wind of the fanning car 216 flows from the lower side to the rear side of the recovery conveyor 210, passes between the recovery conveyor 210 and the discharge conveyor 215, and flows to the rear side on the upper side of the discharge conveyor 215.

When the fruit a2 and the trash fall from the rear of the recovery conveyor 210, the fruit a2 falls to the conveyance conveyor 214 against the conveyance wind of the fan car 216. The slag is carried on the discharge conveyor 215 by the conveying wind of the fan car 216, and the slag carried on the discharge conveyor 215 is conveyed to the rear side by the discharge conveyor 215 and discharged to the field.

The conveyance conveyor 214 is rotationally driven toward the support table 206, and the plurality of collection boxes 217 are mounted on the support table 206. The fruit a2 dropped to the conveying conveyor 214 is conveyed toward the support base 6 by the conveying conveyor 214, and is introduced into the collection box 217 located at the conveying terminal end of the conveying conveyor 214. When the recovery box 217 located at the conveying terminal end of the conveyor 214 is full, the worker assisting the working deck 207 is replaced with an empty recovery box 217.

( embodiment 3, 1 st embodiment)

In the case where the 2 nd carrier 209, the 2 nd parts 232, and the connecting parts 233 are alternately arranged, two or more connecting parts 233 may be used so as to be connected in the moving direction of the 2 nd carrier 209 without using one connecting part 233. According to this structure, the 2 nd interval W2 is longer than the 1 st interval W1 by 3 times or more.

(embodiment 3, second embodiment 2)

In the 2 nd carrier 209, the connecting portions 233 may not be used for the 2 nd part 232, but may be alternately arranged and connected in the left-right direction of the 2 nd part 232. In this structure, 1 or 2 or more connecting portions 233 may be used for the 1 st portion 231 to connect the 1 st portion 231 and the connecting portions 233 alternately. Thus, the 1 st interval W1 is longer than the 2 nd interval W2.

(embodiment 3, other embodiment 3.)

One or more projections (not shown) smaller than the 1 st projection 231a of the 1 st part 231 and the 2 nd projection 232a of the 2 nd part 232 may be provided on the connection part 233.

With this configuration, when the upper part of the crop a moves (vibrates) in the ranges D1 and D2, a small resistance acts on the upper part of the crop a from the projection of the connecting portion 233, and abrupt movement (vibration) of the upper part of the crop a is suppressed.

(embodiment 3, embodiment 4 is other mode)

First upper rotating body 211 and first lower rotating body 212 (first upper axial center P '11 and first lower axial center P' 12) may be arranged to be inclined (cross) with respect to 2 nd conveying body 209 in a plan view so that a portion of first upper rotating body 211 and first lower rotating body 212 on the 2 nd conveying body 209 side is positioned closer to the conveying terminal portion 209b side (rear side) of 2 nd conveying body 209 than a portion of first upper rotating body 211 and first lower rotating body 212 on the opposite side of second conveying body 209.

According to this configuration, the rotation directions C1, C2 of the 1 st upper rotating body 211 and the 1 st lower rotating body 212 are set so that the striking unit 219 of the 1 st upper rotating body 211 and the striking unit 219 of the 1 st lower rotating body 212 push the crop a toward the conveyance terminal end portion 209b of the 2 nd conveyance body 209.

(embodiment 3, second embodiment 5)

Second upper rotating body 221 and second lower rotating body 222 (second upper axial center P '21 and second lower axial center P' 22) may be arranged to be inclined (cross) with respect to second conveying body 209 in a plan view so that a portion of second upper rotating body 221 and second lower rotating body 222 on second conveying body 209 side is positioned closer to conveying terminal portion 209b side (rear side) of second conveying body 209 than a portion of second upper rotating body 221 and second lower rotating body 222 on the opposite side of second conveying body 209.

According to this configuration, the rotation directions C1, C2 of the 2 nd upper rotator 221 and the 2 nd lower rotator 222 are set so that the striking unit 219 of the 2 nd upper rotator 221 and the striking unit 219 of the 2 nd lower rotator 222 push the crop a toward the conveyance terminal end portion 209b of the 2 nd conveyor 209.

(embodiment 3, embodiment 6, other embodiment)

The harvesting unit 203 (the 1 st carrier 208), the 2 nd carrier 209, and the guide rail 213 may be provided on the right portion of the front portion of the body 201. With this configuration, the separating unit 205 is provided on the left side of the 2 nd carrier 209 and the guide rail 213.

Industrial applicability

The present invention is applicable not only to green bean harvesters but also to crop harvesters that harvest crops a such as soybeans, and also to crop harvesters that harvest crops a while leaving roots in the field, by cutting the field near the trunk a1 of the crops a in the field, etc., as well as pulling out the crops a in the field.

Description of the reference numerals

[ embodiment 1]

5 separating part

11 st conveyance body

11b conveying end part of the 1 st conveying body

12 nd 2 conveying body

12a conveyance starting end portion of 2 nd conveyance body

12a1 side

12a2 side

13 guide rail

13a guide rail for conveying start end

13a1 side

13a2 side

52 drive shaft (lower transmission)

62 posture changing part

63 guide part

64 ring-shaped rotating body

65 claw body

66 drive shaft (Upper side drive shaft)

72 distribution transmission part

73 transmission part

76 Dry support parts

77 trunk lead parts

81 stem guide

82 upper guide part

A crop

Trunk of A1 crop

Fruit of A2 crop

Axial center of P1 and P2

Imaginary line of B1

[ 2 nd embodiment ]

101 body

102 traveling device

103 reaping part

105 separation part

111 st carrier

Conveying terminal end of 111b 1 st conveying body

112 nd 2 carrier

112a conveyance starting end portion of the 2 nd conveyance body

138 oscillating support

141 oil pressure cylinder (lifting mechanism)

150 swing fulcrum portion

151 swing fulcrum portion

152 drive shaft

153 drive shaft

162 posture changing part

163 guide part

164 annular rotary body

165 claw body

172 load support

173 No. 1 supporting member

174 nd 2 support member

A crop

Trunk of A1 crop

Fruit of A2 crop

C path

P' 1 axle center

P' 2 axle center

P' 3 axle center

P' 4 axle center

P' 5 axle center

P' 11 supporting axle center

[ embodiment 3]

203 reaping part

205 separation part

209 nd 2 carrier (carrier)

209a conveyance starting end portion

211 st 1 upper rotating body (upper rotating body)

212 1 st lower swivel (lower swivel)

221 nd 2 upper rotating body (upper rotating body)

222 nd 2 lower rotator (lower rotator)

213 guide track

231 part 1

232 part 2

231a 1 st projection

232a 2 nd projection

A crop

A1 dried plant

A2 fruit

Direction of rotation of C1

Direction of rotation of C2

P' 11 the 1 st upper axis (upper axis)

P' 12 bottom axis of No. 1 (bottom axis)

P' 21 Upper Axis (Upper Axis)

P' 22 No. 2 lower axis (lower axis)

W1 interval 1

W2 interval No. 2.

Claims (25)

1. A crop harvester is characterized in that,

comprises left and right 1 st carrier, 2 nd carrier, and separating part,

the left and right first carriers are rotationally driven around an axis in an oblique vertical direction to hold the crop on the field from the left and right sides and lift the crop from the field, and the lifted crop is carried to the rear side of the oblique upper side while maintaining the standing posture,

the second carrier 2 is driven to rotate around the axis in the left-right direction, and carries the trunk of the crop in a horizontal posture to the rear side,

the separation part is arranged at the right side or the left side of the 2 nd conveying body and separates the fruits from the crops conveyed by the 2 nd conveying body,

the crop harvester includes a posture changing unit that changes a posture of the crop from the conveyance terminal end portion of the first conveyance body 1 into a horizontal posture in which a portion of the crop with fruit is located on a side closer to the separation portion with respect to a trunk of the crop, and the trunk of the crop whose posture is changed into the horizontal posture is held by the second conveyance body 2.

2. The crop harvester of claim 1,

the posture changing unit is disposed at a position above the conveyance terminal end of the 1 st conveyance body and at a position spaced rearward from the conveyance terminal end of the 1 st conveyance body.

3. The crop harvester of claim 2,

the posture changing unit is disposed obliquely upward in a side view from a position above the conveyance terminal end of the 1 st conveyance body.

4. The crop harvester of claim 2 or 3,

the posture changing unit overlaps with the conveyance starting end of the 2 nd conveyance body in a plan view.

5. The crop harvester of any one of claims 2 to 4,

a stem guide portion for guiding the stem of the crop toward the conveyance starting end portion side of the 2 nd conveyance body is provided at a position between the conveyance ending portion of the 1 st conveyance body and the posture changing portion in side view.

6. The crop harvester of any one of claims 2 to 5,

an upper guide portion for guiding an upper portion of the crop to the conveyance starting end portion side of the 2 nd conveyance body is provided at a position above the posture changing portion in a side view.

7. The crop harvester of any one of claims 2 to 6,

the posture changing part is provided with a guiding part, a ring-shaped rotating body and a claw body,

the guide portion is arranged to be inclined from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body in a planar view,

the annular rotary body is rotationally driven around an axis in the vertical direction, moves from the conveying end side of the 1 st conveying body to the conveying start side of the 2 nd conveying body along the guide part,

the claw bodies are attached to the endless rotating body at predetermined intervals in the moving direction of the endless rotating body, and push and operate the crop from the conveyance end side of the 1 st conveyance body to the conveyance start end side of the 2 nd conveyance body in accordance with the rotation of the endless rotating body.

8. The crop harvester of claim 7,

comprises a distribution transmission part, a lower transmission shaft and an upper transmission shaft,

the distribution transmission section is disposed between the conveyance terminal section of the 1 st conveyance body and the posture changing section,

the transmission part transmits power to the distribution transmission part from an outer position relative to a part clamping the crops through the first conveying body 1,

the lower transmission shaft transmits the power transmitted to the distribution transmission unit to the 1 st carrier located below the distribution transmission unit,

the upper transmission shaft transmits the power transmitted to the distribution transmission unit to the posture changing unit located above the distribution transmission unit.

9. A crop harvester is characterized in that,

comprises a left and right 1 st carrier, a2 nd carrier, and a guide rail,

the left and right first carriers are rotationally driven around an axis in an oblique vertical direction to hold the crop on the field from the left and right sides and lift the crop from the field, and the lifted crop is carried to the rear side of the oblique upper side while maintaining the standing posture,

the 2 nd carrier is rotationally driven around the axis in the left-right direction and extends from the carrying terminal end of the 1 st carrier to the rear side,

the guide rail extends along the upper side of the second carrier 2 to the rear side,

the trunk of the crop changed from the posture of the conveyance terminal end of the 1 st conveyance body to the horizontal posture is held between the 2 nd conveyance body and the guide rail and conveyed to the rear side by the 2 nd conveyance body,

further comprising a separating part which is arranged on the right side or the left side of the 2 nd carrier and separates the fruit from the crop carried by the 2 nd carrier,

the 2 nd carrier is disposed such that a right-left central portion of a conveyance start end portion of the 2 nd carrier is displaced to a position closer to the separation portion in a plan view with respect to a virtual line extending in the conveyance direction of the 1 st carrier from portions of the 1 st carrier on right and left sides that are in contact with each other in an opposing manner.

10. The crop harvester of claim 9,

a side surface of the guide rail on a side closer to the separating portion is disposed between a side surface of the 2 nd carrier on a side closer to the separating portion and a side surface on a side farther from the separating portion in a plan view,

the guide rail is disposed on a side surface of the 2 nd carrier that is farther from the separating portion, with respect to a side surface of the guide rail that is farther from the separating portion in a plan view.

11. The crop harvester of claim 9 or 10,

the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body are arranged so as to overlap in a plan view,

the conveyance starting end portion of the 2 nd conveyance body is disposed at a position below the conveyance end portion of the 1 st conveyance body in a side view,

the conveyance start end of the guide rail is disposed at a position behind the conveyance end of the 1 st conveyance body.

12. The crop harvester of claim 11,

the plant trunk guide is disposed along a side surface of the 2 nd carrier on a side remote from the separation section at a transport start end of the 2 nd carrier, and prevents the plant trunk of the crop from separating from the transport start end of the 2 nd carrier.

13. The crop harvester of claim 11 or 12,

a trunk support section for receiving the trunk of the crop from the lower side and guiding the trunk to the rear side is disposed at a position distant from the separation section in a plan view with respect to the conveyance starting end section of the 2 nd conveyance body.

14. A crop harvester is characterized in that,

comprises a machine body, a harvesting part and a No. 2 conveying body,

the machine body is supported by a traveling device,

the harvesting part is provided with a left and a right 1 st conveying bodies, the left and the right 1 st conveying bodies are driven around an axis along the oblique vertical direction to clamp the crops in the field from the left side and the right side and lift the crops from the field, the lifted crops are conveyed to the back side of the oblique upper side while maintaining the standing posture,

the second carrier 2 is driven to rotate around the axis in the left-right direction, and carries the trunk of the crop in a horizontal posture to the rear side,

the trunk of the crop whose posture is changed from the conveyance terminal end part posture of the 1 st conveyance body to the horizontal posture is held by the 2 nd conveyance body and conveyed to the rear side by the 2 nd conveyance body,

a separating part which is arranged at the right side or the left side of the 2 nd carrier and separates the fruit from the crop carried by the 2 nd carrier,

comprises a swing fulcrum part, a swing supporting part and a lifting mechanism,

the swing fulcrum part is connected with the upper part of the rear part of the harvesting part and extends upwards,

the swing support part is connected with the machine body, and supports the swing fulcrum part in a manner of freely swinging up and down around a support axis in the left-right direction,

the lifting mechanism is connected to the harvesting unit and the machine body, and lifts and lowers the harvesting unit.

15. The crop harvester of claim 14,

the harvesting part comprises a right swing fulcrum part connected with the upper part of the right part of the rear part of the harvesting part and extending upwards, a right swing support part for supporting the right swing fulcrum part in a manner of freely swinging up and down around the support axis,

the harvesting part comprises a left swing fulcrum part connected with the upper part of the left part of the rear part of the harvesting part and extending upwards, a left swing support part for supporting the left swing fulcrum part in a manner of freely swinging up and down around the support axis,

a passage through which a crop passes is provided between the right swing fulcrum portion and the right swing support portion, and between the left swing fulcrum portion and the left swing support portion.

16. The crop harvester of claim 14 or 15,

the swing fulcrum part is provided with a driving shaft and a transmission shaft,

the driving shaft is disposed in the vertical direction and drives the 1 st carrier to rotate,

the transmission shaft transmits power to the drive shaft from an outer position with respect to a portion where the crop is gripped by the first carrier 1.

17. The crop harvester of claim 16,

and a posture changing unit connected to an upper portion of the swing fulcrum unit, the posture changing unit changing a posture of the crop from the conveyance terminal end portion of the 1 st conveyance body into a horizontal posture in which a portion of the crop with fruit is located on a side closer to the separation unit with respect to a trunk of the crop, and the trunk of the crop whose posture is changed into the horizontal posture being held by the 2 nd conveyance body.

18. The crop harvester of claim 17,

the posture changing part is provided with a guiding part, a ring-shaped rotating body and a claw body,

the guide portion is arranged to be inclined from the conveyance end portion of the 1 st conveyance body to the conveyance start end portion of the 2 nd conveyance body in a planar view,

the endless rotating body is rotationally driven around an axis in the vertical direction by power of the drive shaft, and moves from the conveyance end side of the 1 st conveyance body to the conveyance start side of the 2 nd conveyance body along the guide portion,

the claw bodies are attached to the endless rotating body at predetermined intervals in the moving direction of the endless rotating body, and push and operate the crop from the conveyance end side of the 1 st conveyance body to the conveyance start end side of the 2 nd conveyance body in accordance with the rotation of the endless rotating body.

19. The crop harvester of any one of claims 14 to 18,

the harvester further includes a load support portion connected to the harvesting portion across a lower portion of the swing support portion of the body, allowing the harvesting portion to be lifted and lowered, and supporting a load applied to the harvesting portion in a left-right direction.

20. The crop harvester of claim 19,

the load support part is provided with a1 st support member and a2 nd support member,

the 1 st support member is supported to be vertically swingable around an axis in the left-right direction of the machine body and extends forward,

the 2 nd support member is supported to be swingable about a left-right axis of a front portion of the 1 st support member, and is connected to be swingable about a left-right axis of the harvesting portion.

21. A crop harvester is characterized in that,

comprises a harvesting part, an annular conveying body, a guide rail and a separating part,

the harvesting part harvests the crops in the field,

the annular carrier is driven to rotate around a transverse axis,

the guide rail is disposed along the carrier,

the separating part is arranged on the lateral side of the conveying body,

the carrier has a1 st projection and a2 nd projection,

the 1 st projection is provided at a1 st portion of the carrier on a side farther from the separating portion, at a1 st interval in a moving direction of the carrier, and projects toward the guide rail,

the 2 nd protrusion is provided at a2 nd portion of the conveying body on a side closer to the separation portion, at a2 nd interval in a moving direction of the conveying body, and protrudes toward the guide rail side,

the 2 nd interval is set to be larger than the 1 st interval, or the 1 st interval is set to be larger than the 2 nd interval,

the trunk of the crop harvested by the harvesting section is held between the carrier and the guide rail in a horizontal posture, and the carrier is rotationally driven to move the 1 st projection and the 2 nd projection, whereby the crop is carried, and the fruit is separated from the carried crop by the separating section and collected.

22. The crop harvester of claim 21,

the 2 nd interval is set to be larger than the 1 st interval.

23. The crop harvester of claim 21 or 22,

the guide rail is arranged along the upper side of the conveying body,

the portion of the guide rail closer to the separating portion is disposed farther from the separating portion than the 2 nd portion in a plan view.

24. The crop harvester of any one of claims 21 to 23,

the separation section is provided with an upper rotary body which is rotationally driven around an upper axis in a direction intersecting the conveyance body in a plan view, and a lower rotary body which is rotationally driven around a lower axis along the upper axis below the upper axis,

the conveyed crop passes between the upper rotating body and the lower rotating body, and the upper rotating body and the lower rotating body collide with the crop, whereby the fruit is separated from the crop.

25. The crop harvester of claim 24,

the upper and lower rotors are disposed so that the portions of the upper and lower rotors on the side of the carrier are located closer to the side of the carrier start end than the portions of the upper and lower rotors on the opposite side of the carrier,

the rotation directions of the upper and lower rotating bodies are set so that the crop passing between the upper and lower rotating bodies is pushed toward the side of the conveying start end of the conveying body by the upper and lower rotating bodies.

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