JP2021023101A - Thresher - Google Patents

Abstract

To constitute a thresher such that processed products from a threshing part can be selected properly in accordance with threshing of a large quantity of crops.SOLUTION: A thresher includes a threshing part 5, a first selection part 11 arranged on the lower side with respect to the threshing part 5, for selecting processed products from the threshing part 5 by being driven reciprocatively in a cross direction, and a second selection part 12 arranged on the lower side with respect to the first selection part 11, for selecting processed products from the first selection part 11 by being driven reciprocatively in the cross direction. A second grain pan 22 for transferring the processed products to the posterior is provided on the front end of the second selection part 12, and a wall part 48 formed higher than the second grain pan 22 is provided on the front end of the second grain pan 22 so as to prevent spill of the processed products to the front side from the second grain pan 22.SELECTED DRAWING: Figure 4

Description

The present invention relates to the configuration of a sorting unit in a threshing device.

As disclosed in Patent Document 1, the threshing apparatus is provided with a threshing section and a sorting section arranged below the threshing section, and the harvested crop is threshed by the threshing section. Then, the processed product from the threshing section is sorted in the sorting section.

Japanese Unexamined Patent Publication No. 2016-36261

In recent years, threshing equipment has become able to thresh a large amount of crops by improving the threshing performance in the threshing section.

An object of the present invention is to configure a threshing apparatus so that a large amount of crops can be threshed, whereas the processed product from the threshing section can be appropriately sorted.

The threshing device of the present invention is arranged below the threshing section for threshing the harvested crop and the threshing section, and is reciprocally driven along the front-rear direction to sort the processed material from the threshing section. A first sorting unit to be processed, and a second sorting unit which is arranged below the first sorting unit and is reciprocally driven along the front-rear direction to sort the processed material from the first sorting unit. A second grain pan for transporting the processed material to the rear side is provided at the front end portion of the second sorting unit, and can prevent the processed material from spilling from the second grain pan to the front side from the second grain pan. A high wall is provided at the front end of the second Glenpan.

According to the present invention, the harvested crop is threshed in the threshing section, and the processed product falls to the lower first sorting section for sorting.
In the first sorting section, the processed product is sorted into grains to be collected and straw scraps to be discharged, and the grains and some straw scraps fall to the lower second sorting section, and many of them fall. Straw scraps etc. are discharged.
In the second sorting unit, the processed product is sorted into grains to be collected and scraps of straw to be discharged, and the grains are collected and scraps of scraps are discharged.

According to the present invention, the processed product from the threshing section is sorted in two stages by the first sorting section and the second sorting section, and threshing is performed by one large sorting section having a large area in a plan view. Compared with the configuration in which the processed products from the part are sorted, many processed products from the threshing part can be sorted without difficulty, and the sorting performance of the threshing apparatus is improved.

According to the present invention, a second glen pan is provided at the front end portion of the second sorting portion, and a wall portion formed higher than the second glen pan is provided at the front end portion of the second glen pan.
As a result, even if the processed material tries to spill from the second Glenpan to the front side as the second sorting unit is reciprocated, the wall portion prevents the processed material from spilling. It is possible to reduce the number of processed products that are not sorted, and the performance of the sorted processing of the processed products is improved.

In the present invention, the upper part of the wall portion is formed so as to be obliquely upward facing backward, and a wall insert for supplying a wall insert to the first sorting part and the second sorting part is provided, and a part of the wall insert is provided with a wall insert. , It is preferable that the flow flows to the rear side between the first sorting portion and the wall portion.

The threshing device is often equipped with a wall insert that supplies a sorting wind, and in the present invention, a part of the wall insert of the wall insert is provided between the first sorting portion and the wall portion of the front end portion of the second Glenpan. It is configured to flow to the rear side.

According to the present invention, since the upper part of the wall portion is formed so as to be obliquely upward facing backward, a part of the wall insert of the wall insert obstructs the space between the first sorting portion and the wall portion of the front end portion of the second Glenpan. It will flow smoothly to the rear side without being done.
If the upper part of the wall portion is formed so as to be obliquely upward facing backward, the upper portion of the wall portion is in a state of covering the front end portion of the second Glenpan from the upper side, so that the processed material is spilled in the second sorting portion. It will be effectively blocked by the wall.

In the present invention, the first product collecting unit is provided on the lower side with respect to the second sorting unit, and the second product collecting unit is on the lower side with respect to the second sorting unit and the first product. A wall insert, which is provided on the rear side of the collection unit and supplies sorting air to the first selection unit and the second selection unit, is provided on the front side of the first collection unit, and the processed product is placed on the rear side. The first grain pan that transports the processed material to the rear side, the first chaff sheave that sorts the processed material while transporting it to the rear side and drops it downward, and the straw rack that sorts the processed material while transporting it to the rear side and drops it downward. In this order, the second grain pan is provided from the front part to the rear part of the first sorting unit, the selected processed material is dropped into the first product collecting unit, and the processed material is conveyed to the rear side. It is preferable that the second chaff sheaves, which are sorted while being sorted and dropped into the second sorting section, are provided in this order from the front portion to the rear portion of the second sorting section.

According to the present invention, the first sorting section is provided with the first grain pan, the first chaff sheave, and the straw rack, and the processed product from the threshing section is appropriately sorted in the first sorting section.
A second grain pan, a grain sheave and a second chaf sheave are provided in the second sorting section, and the processed product from the first sorting section is appropriately sorted in the second sorting section, and the sorted processed product is a grain. Is collected in the first product collection unit, and a mixture of grains, straw scraps, etc. is collected in the second product collection unit as the sorted processed product.

In the present invention, a chevron-shaped front partition portion protruding upward in a side view is provided between the first item collecting portion and the wall insert, and the grain sieve is provided from the rear end portion of the second grain pan to the rear side. With the second sorting portion located at the front end portion of the reciprocating drive, the rear end portion of the second Glen pan is provided so as to extend with respect to a vertical line passing through the top of the front partition portion in a side view. , It is preferable that it is located on the rear side.

According to the present invention, in the second sorting section, grains fall from the grain sieve to the first item collecting section as the sorted processed product, and a pre-partitioning section is provided between the first item collecting section and the wall insert. ing.

When the second sorting unit is reciprocated along the front-rear direction, according to the present invention, the rear end portion of the second Glenpan is viewed from the side while the second sorting unit is located at the front end portion of the reciprocating drive. It is located on the rear side with respect to the vertical line passing through the top of the front partition, and the rear end of the second Glenpan moves to the front side beyond the vertical line passing through the top of the front partition in a side view. There is no.
As a result, the state in which the grains that have fallen from the vicinity of the front end of the Glen Seeb fall to the front side with respect to the top of the front partition and are not collected by the first collection section is reduced, and the grain recovery efficiency is improved. improves.

In the present invention, the first chaff sheave is provided so as to extend from the rear end portion of the first glen pan to the rear side, and in a plan view, the rear portion of the first glen pan, the front portion of the first chaff sheave, and the first It is preferable that the first grain pan, the first chaff sieve, and the second grain pan are arranged so as to overlap the two grain pans.

In the first sorting section, the processed product that has fallen from the grain removal section to the first Glenpan is transported to the rear side along the first Glenpan, transported to the first chaff sheave, and the processed product sorted by the first chaff sheave is below. Fall to the side.

According to the present invention, in the first sorting unit and the second sorting unit, the rear portion of the first Glenpan and the front portion of the first chaff sheave and the second Glenpan are arranged so as to overlap in a plan view.
As a result, the processed material that has fallen from the rear end of the first glen pan (the front end of the first chaff sheave) does not fall to the front side with respect to the second glen pan, and falls reasonably on the second glen pan, and the second It will be transported from Glenpan to Glensive, and the efficiency of grain recovery will be improved.

In the present invention, it is preferable that the rear end portion of the first Glenpan is located above the front-rear central portion of the second Glenpan.

According to the present invention, the processed material that has fallen from the rear end portion of the first Glen pan (the front end portion of the first chaff sheave) falls near the front-rear central portion of the second Glen pan and is transported from the second Glen pan to the Glen sieve. Therefore, the efficiency of grain recovery is improved.

In the present invention, a transport screw that transports the processed material by being rotationally driven around the screw shaft core along the left-right direction is provided in the second product collection unit, and is a chevron-shaped partition that projects upward in a side view. A portion is provided between the first product collecting portion and the second product collecting portion, and the rear end portion of the Glen Seeb is a vertical line passing through the top of the rear partition portion and the screw shaft core in a side view. It is preferable that it is located between the vertical line passing through.

In the second sorting section, the grains fall from the Glen Seeb and are collected in the No. 1 collection section, and the processed product that reaches the rear end of the Glen Seeb without falling from the Glen Seeb is a mixture of grains and straw waste. This processed product falls from the rear end of the Glen Seeb to the second product collection unit and is collected.

According to the present invention, a transport screw that is rotationally driven around the screw shaft core along the left-right direction is provided between the second collection unit, the first collection unit, and the second collection unit. In the partition portion, the rear end portion of the grain sieve is located between the vertical straight line passing through the top of the rear partition portion and the vertical straight line passing through the screw shaft core in a side view.

As a result, the processed product (mixture of grains, straw scraps, etc.) that has fallen from the rear end of the grain sieve falls to the front side with respect to the top of the rear partition and is collected by the first product collection unit. The condition is reduced and the efficiency of grain recovery is improved.

In the present invention, it is preferable that the second chaff sheave is provided so as to extend rearward from the vertical line passing through the rear end portion of the transport screw in a side view.

According to the present invention, in the second sorting section, the rear end portion of the grain sheave and the front end portion of the second chaff sheave are slightly separated in the front-rear direction, so that the processed product (grain) reaching the rear end portion of the grain sheave. (Mixtures such as straw scraps) easily fall from the rear end of the grain sieve, and the recovery efficiency of the second product recovery section is improved.

In the present invention, it is preferable that the straw rack is extended to the rear side until the rear end portion of the straw rack is located above the rear portion of the second chaff sheave.

According to the present invention, in the first sorting unit and the second sorting unit, the straw rack and the second chaff sheave are arranged so as to overlap each other in a plan view.
As a result, the processed product sorted by the straw rack falls from the straw rack, is received by the second chaff sheave, and is sorted by the second chaff sheave, and the processed product sorted by the second chaff sheave is processed. It falls from the second chaff sheave and is collected by the second item collection unit, and the collection efficiency of the second item collection unit is improved.

In the present invention, the first glen pan and the first chaf sheave are provided in a backward rising inclined state, and the backward rising tilt angle of the first chaf sheave is larger than the backward rising tilt angle of the first glen pan. It is preferable that it is set to.

In the first sorting unit, the first Glenpan has a function of transporting the processed material to the rear side. The first chaff sheave has a function of sorting the processed material while transporting it to the rear side and dropping the selected processed material to the second sorting unit.
In this case, if the processed material is transported to the rear side too quickly in the first chaf sheave, the selection of the processed material in the first chaf sheave is delayed, and the processed material to be dropped in the second sorting unit is the first chaf sheave. May be transported to the straw rack.

According to the present invention, the rearward tilt angle of the first chaff sheave is set to be larger than the rearward tilt angle of the first Glenpan, so that the processed material in the first chaff sheave can be conveyed to the rear side. It will be a little late.
As a result, in the first chaff sheave, the sorting of the processed material to be dropped to the second sorting unit is delayed, and the state in which the processed product to be dropped to the second sorting unit is transported from the first chaf sheave to the straw rack can be reduced. As a result, the efficiency of grain recovery is improved.

In the present invention, the threshing section has a scraping section for scraping the harvested crop backward and a handling section continuously provided at the rear portion of the scraping section to handle the crop. A wall insert that is rotationally driven around the center of rotation along the direction and a receiving net that is arranged below the wall insert are provided, and the wall insert covers the outside of the wall insert. The front end of the receiving net and the front end of the wall insert case are arranged at the same position in the front-rear direction so as to project forward from the front end of the case. The first grain pan is extended to the front side through between the receiving net and the wall insert case until the front end portion of the first grain pan is located at the same position in the front-rear direction as the front end portion of the wall insert case. It is preferable to have it.

In the grain removal section provided with a handling barrel and a net, many crops are degrained in the front part of the grain removal section where the cut crops are introduced, and a large amount of processed material is processed from the front part of the grain removal section. 1 Fall into the 1st Glenpan of the sorting section.

According to the present invention, in a state where the scraping portion of the handling cylinder is provided so as to project forward from the front end portion of the wall insert case covering the outside of the wall insert, the space between the receiving net and the wall insert case is utilized. Since the first wall insert is configured to be long in the front-rear direction, even if a large amount of processed material falls from the threshing part onto the first wall insert, the processed material is reasonably transported to the rear side by the first wall insert. become.

It is a left side view of the combine. It is a left side view of a threshing device. It is a right side view of a threshing device. It is a vertical cross-sectional left side view of a threshing device. It is the left side view of the vertical section near the wall insert. It is the left side view of the vertical section in the vicinity of the second item collection part. It is a vertical sectional rear view in the vicinity of the 1st, 3rd, and 6th wind direction members. It is a left side view which shows the change structure of the chaflip interval in the 1st chaff receive. It is a vertical sectional front view which shows the change structure of the chaflip interval in the 1st chaff receive. It is a longitudinal left side view of the vicinity of the rear wall portion of the rear end portion of the second sheave case and the connection portion between the drive arm and the second sorting portion. It is an exploded perspective view of the rear wall portion of the rear end portion of the second sheave case and the guide member. It is a perspective view which looked at the vicinity of the wall insert case from the lower side. It is a left side view near the wall insert. It is a left side view which shows the rotation speed change part of a wall insert. It is a figure which shows the transmission system from an engine to a handling cylinder, a 1st sorting part and a 2nd sorting part. It is a left side view which shows the transmission chain and tension wheel body which transmit the power of an engine to a 1st sorting part and a 2nd sorting part. It is a rear view which shows the structure which reciprocates the 1st sorting part and the 2nd sorting part along the front-rear direction. It is a left side view which shows the structure which reciprocates the 1st sorting part and the 2nd sorting part along the front-rear direction. It is an exploded perspective view of a drive member. It is a vertical sectional left side view of a drive arm. It is a left side view which shows the state of the reciprocating drive of the 1st sorting part and the 2nd sorting part. It is a left side view which shows the state of the reciprocating drive of the 1st sorting part and the 2nd sorting part.

1 to 22 show a conventional combine equipped with the threshing device of the present invention, where F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, and D indicates the downward direction. The direction is indicated, R indicates the right direction, and L indicates the left direction.

(Overall composition of combine harvester)
As shown in FIG. 1, the right and left front wheels 1 are supported by the front parts of the right and left airframe frames 3 arranged along the front-rear direction, and the right and left rear wheels 2 are supported by the rear parts of the airframe frame 3. Is supported. The driving unit 4 is provided in the front part of the machine frame 3, and the threshing device 150 is provided in the machine frame 3.

As shown in FIGS. 2, 3 and 4, in the threshing device 150, a threshing section 5, a first sorting section 11, a second sorting section 12, and the like are provided between the right and left side walls 33.
As shown in FIG. 1, a grain tank 6 is provided above the front portion of the threshing section 5, an unloader 7 is provided in the grain tank 6, and an engine 8 is provided above the rear portion of the threshing section 5. Has been done. A feeder 9 is provided at the front portion of the threshing portion 5 and extends to the front side, and the cutting portion 10 is connected to the front portion of the feeder 9.

As shown in FIG. 4, the first sorting unit 11 is provided below the threshing unit 5. The second sorting unit 12 is provided below the first sorting unit 11. The first item collecting unit 41 is provided below the second sorting unit 12. The second item collection unit 42 is provided on the lower side of the second sorting unit 12 and on the rear side of the first item collection unit 41. The wall insert 47 that supplies the sorting wind to the first sorting section 11 and the second sorting section 12 is provided on the lower side with respect to the front part of the threshing section 5, and is provided on the front side with respect to the first item collecting section 41. There is.

As shown in FIGS. 1 and 4, the crops in the field are cut and harvested by the cutting section 10 and supplied to the threshing section 5 through the feeder 9. The harvested crop is threshed by the threshing section 5, and the processed product from the threshing section 5 is sorted by the first sorting section 11 and the second sorting section 12.

As shown in FIGS. 1 and 3, the grains as the sorted processed product are collected from the second sorting unit 12 to the first product collecting unit 41 and supplied to the grain tank 6 by the transport device 66. A mixture of grains, straw scraps, etc. as the sorted processed product is collected from the second sorting unit 12 to the second product collecting unit 42, and is supplied to the front portion of the first sorting unit 11 by the transport device 147. It is sorted again.

When the grain tank 6 is full of grains, the cutting work is temporarily suspended, and the grains of the grain tank 6 are discharged to another carrier (not shown) by the unloader 7, and then the cutting work is restarted. To do.

(Composition of threshing section)
As shown in FIG. 4, the threshing section 5 is provided with a handling cylinder 13, a receiving net 14, a dust feeding valve 15, and the like which are rotationally driven around a rotating shaft core P1 along the front-rear direction. The handling cylinder 13 and the receiving net 14 are arranged in an inclined state rising backward, and the dust feeding valve 15 is provided above the handling cylinder 13.

The handling cylinder 13 is configured by being provided with a scraping portion 13a for scraping the harvested crops backward, a handling processing portion 13b continuously provided at the rear portion of the scraping portion 13a and processing the crops, and the like. ing.

The scraping portion 13a of the handling cylinder 13 is formed by providing a conical main body portion 13c, a spiral portion 13d connected to the outer peripheral portion of the main body portion 13c, and the like.
The handling portion 13b of the handling cylinder 13 is a plurality of round pipe-shaped handling tooth support portions 13e arranged along the rotation axis P1 and a round bar member extending outward in the radial direction from the handling tooth support portion 13e. A large number of handle teeth 13f and the like are provided and formed.

In the receiving net 14, a large number of lattices are formed by a large number of semicircular members arranged along the rotation direction of the handling cylinder 13 and a large number of rod members arranged along the rotation axis P1. .. The receiving net 14 is arranged below the handling processing portion 13b of the handling cylinder 13, and is formed in a semi-cylindrical shape along the handling processing portion 13b of the handling cylinder 13.

As shown in FIGS. 4 and 15, the drive case 16 is connected to the rear part of the threshing section 5, and the transmission shaft 17 protrudes to the left side from the drive case 16. The power of the engine 8 is transmitted to the transmission shaft 17 from the pulley 17a connected to the left portion of the transmission shaft 17 via the transmission belt 18, and is transmitted to the handling cylinder 13 via the bevel gear mechanism 19 inside the drive case 16. It is transmitted and the handling cylinder 13 is rotationally driven around the rotation shaft core P1.

As a result, the crops cut by the cutting section 10 are conveyed toward the threshing section 5 by the feeder 9, scraped backward by the scraping section 13a of the handling cylinder 13, and introduced into the threshing section 5. .. The crop is threshed by the handling cylinder 13 and the receiving net 14, and is sent backward by the guiding action of the dust valve 15.

Processed products such as grains and straw scraps fall through the receiving net 14 to the lower first sorting section 11. The straw scraps and the like carried to the rear part of the threshing section 5 without falling downward from the receiving net 14 are shredded by the shredding device 20 and discharged to the field.

(Structure of right and left side walls)
As shown in FIGS. 2, 3 and 4, the threshing section 5 is arranged between the right and left side walls 33, and the right and left side walls 33 are extended downward with respect to the threshing section 5. , It is configured as described below.

As shown in FIGS. 2, 3, 12, and 13, a square pipe-shaped strut member 92 is connected to the front and rear parts of the right airframe frame 3 and is extended downward to the front of the left airframe frame 3. Square pipe-shaped strut members 92 are connected to the portion and the rear portion and extended downward, and four strut members 92 are provided.

The horizontal frame 93 is connected to the lower part of the front right and left support member 92, and the horizontal frame 93 is connected to the lower part of the rear right and left support member 92. The horizontal frame 94 is connected to the lower part of the right front and rear strut members 92, and the horizontal frame 94 is connected to the lower part of the left front and rear strut members 92.

The right side wall 33 is connected over the right fuselage frame 3, the right front and rear strut members 92, and the right lateral frame 94, and the left side wall 33 is the left fuselage frame 3, the left front and rear. The support column member 92 and the left horizontal frame 94 are connected to each other. The right and left side walls 33 cover the outside of the threshing section 5, the first sorting section 11, and the second sorting section 12.

In the lower part of each of the four strut members 92, the configuration described below is provided.
The bottom plate 97 to which the ring member 97a is connected is connected to the lower end of the support column member 92 over the horizontal frames 93 and 94. The triangular rib 95 is connected over the strut member 92 and the horizontal frame 93. The triangular rib 96 is connected over the strut member 92, the horizontal frame 94, and the bottom plate 97.

A jack (not shown) can be applied to the bottom plate 97 from below, and the combine can be lifted by the jack. The front right and left bottom plates 97 are mainly used when replacing the front wheel 1 or when removing the mission case (not shown). The rear right and left bottom plates 97 are mainly used when replacing the rear wheel 2.

(Structure of the first sorting section)
As shown in FIGS. 4 and 5, the first sorting unit 11 for sorting the processed material from the threshing unit 5 is arranged below the threshing unit 5 and is arranged between the right and left side walls 33. It is configured to be reciprocally driven by being supported so as to be reciprocally movable along the front-rear direction (see (reciprocating drive configuration of the first sorting unit and the second sorting unit) described later).

The first sorting unit 11 is provided with a first sheave case 23 having a rectangular frame shape in a plan view, and sorts the processed material while transporting it to the rear side and the first Glenpan 21 for transporting the processed material to the rear side. The first chaff sheave 31 that is dropped to the lower side and the straw rack 24 that is sorted while transporting the processed material to the rear side and dropped to the lower side are attached to the first sheave case 23 in this order and are first sorted. It is provided from the front portion to the rear portion of the portion 11.

The first Glenpan 21 is formed in a sawtooth shape in a side view, and the first sorting portion 11 (first sheave case 23) is tilted backward from the front end portion toward the rear side. It is provided on the front portion of the portion 11 (first sheave case 23).

A large number of elongated round bar-shaped sieving lines 44 are connected to the rear end portion 21b of the first Glenpan 21 at intervals along the left-right direction, and the sieving lines 44 cantilever from the rear end portion 21b of the first Glenpan 21. It extends to the rear side like a shape. A wall portion 45 formed higher than the first Glenpan 21 is provided at the front end portion 21a of the first Glenpan 21.

The front end portion 31a of the first chaff sheave 31 is located below the sieve line 44, and the front end portion 31a of the first chaff sheave 31 and the sieve line 44 overlap in a plan view. The first sorting unit 11 (first sorting unit 11) so that the first chaff sheave 31 extends from the rear end portion 21b of the first Glenpan 21 to the rear side in an inclined state of rising backward from a position where a gap 60 is opened on the rear side and the lower side. It is provided in 1 sheave case 23).

In the vicinity of the rear end portion of the first chaff sheave 31, the support frame 46 is connected to the first sheave case 23 along the left-right direction. The straw rack 24 is formed in a saw blade shape in a side view, and a large number of straw racks 24 are connected to the support frame 46 with a gap in the left-right direction, and cantilevered from the support frame 46. It extends to the side.

(Composition of the first chaff sheave)
As shown in FIGS. 5, 8 and 9, in the first sorting unit 11, a large number of chaflip 99s along the left-right direction are arranged in the first sheave case 23 so as to be arranged along the front-rear direction, and the first The chaff sheave 31 is configured.

The flat plate-shaped elongated right and left support members 100 are supported by the right and left inner surfaces of the first sheave case 23 along the front-rear direction, and the upper parts of the right and left ends of the chaflip 99 are left and right. It is supported by the support member 100 so as to be swingable around the axis along the direction.

Flat plate-shaped elongated right and left operating members 105 are arranged along the front-rear direction on the right and left inner surfaces of the first sheave case 23, and the lower part of the right and left ends of the chaflip 99 is It is connected to the operating member 105 so as to be swingable around the axis along the left-right direction.

The chaflip 99 is arranged so as to be tilted backward in a side view, and when the position of the operating member 105 is changed in the front-rear direction, the tilt angle of the chaflip 99 is changed in conjunction with the operating member 105.

When the position of the operating member 105 is changed to the rear side, the inclination angle of the chaflip 99 becomes large, the chaflip 99 approaches the upright posture, and the interval W1 of the adjacent chaflip 99 becomes large. When the position of the operating member 105 is changed to the front side, the inclination angle of the chaflip 99 becomes smaller, the chaflip 99 becomes closer to the posture of lying sideways, and the interval W1 of the adjacent chaflip 99 becomes smaller.

As shown in FIGS. 8 and 9, the plate-like spacing changing portion 106 is swingably supported on the outer surface portion of the left portion of the first sheave case 23 around the swinging shaft core P8 along the left-right direction. ing. An operation pin 106a connected to the lower part of the interval changing portion 106 is connected to the left operating member 105 through an opening (not shown) on the left side of the first sheave case 23.

When the interval changing portion 106 is swung around the swing shaft core P8, the position of the left operating member 105 is changed in the front-rear direction by the operation pin 106a of the spacing changing portion 106, and the chaflip 99 is moved. Through this, the position of the right operating member 105 is changed in the front-rear direction.

The interval changing unit 106 operates the first chaf sheave 31 (chaflip 99) on the opening side that increases the interval W1 of the adjacent chaflip 99 and the closing side that decreases the interval W1.

(Configuration to operate the interval change section)
As shown in FIGS. 8 and 9, a pin-shaped connecting portion 106b is connected to the upper portion of the spacing changing portion 106. The boss portion 107 is provided, and the bracket 107a connected to the boss portion 107 is swingably connected to the connecting portion 106b of the interval changing portion 106.

The rod portion 108 is oscillatingly connected in the vertical direction to the bracket 23a connected to the outer surface portion of the left portion of the first sheave case 23, and the rod portion 108 is inserted into the boss portion 107 to the rear side. It has been postponed. As a result, the rod portion 108 is connected to the first sorting portion 11 and is slidably inserted into the boss portion 107.

A coil spring 109 is provided, a rod portion 108 is inserted into the coil spring 109, and the spring receiving portion 108a and the boss portion 107 provided on the rod portion 108 are in a state where the coil spring 109 is compressed with respect to the free length. It is provided in between.

The coil spring 109 operates the interval changing portion 106 in the counterclockwise direction of FIG. 8 via the boss portion 107 by trying to extend from the compressed state with respect to the free length, and the boss portion 107 is operated by the coil spring 109. The interval changing portion 106 is urged to the opening side via the above.

The support plate 113 is connected to the outer surface portion of the left side wall 33. The operating gear 114 is oscillatingly supported by the support plate 113 around the axis along the left-right direction, and the electric motor 115 and the gear mechanism 116, which are actuators, are connected to the support plate 113. The pinion gear 16a of the gear mechanism 116 is rotationally driven by the power of the electric motor 115, and the operation gear 114 is swung by the pinion gear 16a of the gear mechanism 116.

One end of the outer 118b of the wire 118 is connected to the bracket 113a connected to the support plate 113, and one end of the inner 118a of the wire 118 is connected to the operating gear 114.

The wire 118 extends rearward from the support plate 113, turns forward, passes between the left side wall 33 and the left portion of the second sheave case 25, and extends forward. The other end of the outer 118b of the wire 118 is connected to the bracket 23b connected to the outer surface of the left side of the first sheave case 23, and the other end of the inner 118a of the wire 118 is the spacing change portion 106. It is connected to the connection unit 106b.

As a result, the wire 118 is connected to the electric motor 115 and the interval changing portion 106. The coil spring 109 and the wire 118 (inner 118a) are connected to the upper portion of the spacing changing portion 106, which is the same portion extending from the swing shaft core P8, and are arranged side by side along each other. The coil spring 109 and the wire 118 (inner 118a) are connected to a common connecting portion 116b provided in the spacing changing portion 106.

(Operation status of the interval change part)
As shown in FIG. 8, when the operation gear 114 is swung by the electric motor 115 and the inner 118a of the wire 118 is pulled toward the electric motor 115, the interval changing portion is opposed to the coil spring 109. The 106 is swung around the swing shaft P8 in the clockwise direction of FIG. 8, and the interval changing portion 106 is operated toward the closing side. Along with this, the coil spring 109 is compressed by the spring receiving portion 08a of the boss portion 107 and the rod portion 108.

When the operation gear 114 is oscillated by the electric motor 115 and the inner 118a of the wire 118 is returned toward the interval changing portion 106, the coil spring 109 extends and the interval changing portion 107 is passed through the boss portion 107. By pushing the 106, the interval changing section 106 is swung around the swing axis P8 in the counterclockwise direction of FIG. 8, and the spacing changing section 106 is operated to the open side.

A potentiometer type position sensor 117 is connected to the operation gear 114, and the position sensor 117 detects the operation angle of the operation gear 114. By detecting the operation angle of the operation gear 114, the operation position of the interval changing unit 106 is detected, and the interval W1 is detected.

(Structure of the second sorting section)
As shown in FIGS. 4, 5 and 6, the second sorting unit 12 for sorting the processed material from the first sorting unit 11 is arranged below the first sorting unit 11 and has right and left side walls. It is arranged between 33, is supported so as to be reciprocally movable along the front-rear direction, and is configured to be reciprocally driven (reciprocating drive configuration of (first sorting unit and second sorting unit) described later). ).

The second sorting unit 12 is provided with a second sheave case 25 having a rectangular frame shape in a plan view, a second Glen pan 22 for transporting the processed material to the rear side, and a first product collecting unit 41 for the selected processed material. The Glen Sheave 26, which is dropped into the rectangle, and the second chaff receive 32, which sorts the processed material while transporting it to the rear side and drops it on the second product collection unit 42, are attached to the second sheave case 25 in this order to perform the second sorting. It is provided from the front portion to the rear portion of the portion 12.

The second Glenpan 22 is formed in a saw blade shape in a side view, and the second sorting portion 12 (second sheave case 25) is directed from the front end portion to the rear side of the second sorting portion 12 (second sheave case 25). It is provided in the front part of 25). A wall portion 48 formed higher than the second Glen pan 22 is provided at the front end portion of the second Glen pan 22, and the upper portion 48a of the wall portion 48 is formed so as to be obliquely upward facing backward.

As described later (configuration of the first air passage and the first, second, and fifth wind direction members), a part of the sorting wind of the wall insert 47 is the first sorting unit 11 (rear part of the first Glenpan 21) and the wall. It flows to the rear side between the portion 48 and the wall portion 48 prevents the processed material from spilling from the second Glenpan 22 to the front side.

The Glen Sieve 26 is composed of a punching metal in which a large number of small openings are opened in a flat plate-shaped member, and a crimp net in which an elongated metal wire is woven. The Glen Sheave 26 is connected to the rear end portion 22a of the second Glen Pan 22 and is provided in the second sorting portion 12 (second sheave case 25) so as to extend rearward from the rear end portion 22a of the second Glen Pan 22. Has been done.

A large number of elongated round bar-shaped sieving lines 49 formed in a sawtooth shape in a lateral view are connected to the rear end portion 26b of the Glen Sheave 26 at intervals along the left-right direction, and the sieving line 49 is rearward of the Glen Sheave 26. It extends rearward in a cantilevered manner from the end 26b.

The front end portion 32a of the second chaff sheave 32 is arranged at a position slightly rearward from the rear end portion 26b of the grain sheave 26 so that the second chaff sheave 32 extends to the rear side in a backward inclined state. It is provided in the second sorting unit 12 (second sheave case 25).

Similar to the first chaf sheave 31 described in the above (configuration of the first chaf sheave), in the second chaff sheave 32, a large number of chaf flips 110 along the left-right direction are arranged along the front-rear direction. Arranged in the case 25, the second chaff sheave 32 is configured.

Similar to the first chaff sheave 31, the interval of the chaf flip 110 of the second chaff sheave 32 can be changed by changing the inclination angle of the chaf flip 110 of the second chaff sheave 32. In this case, the operator manually changes the inclination angle (interval) of the chaflip 110 by using a tool or the like.

(Structure of the rear end and rear wall of the second sheave case)
As shown in FIGS. 10 and 11, the rear end 132 connected to the second sheave case 25 has a flat plate shape along the left-right direction, and the front 132a of the rear end 132 rises rearward in a side view. It is formed in an inclined state, and the rear portion 132b of the rear end portion 132 is formed in an inclined state downward in the lateral view.

A rear wall portion 133 is provided on the front portion 132a of the rear end portion 132 so as to extend over the left and right ends of the second sorting portion 12. The rear wall portion 133 is formed by bending a plate material, and the rear wall portion 133 is provided with a lower portion 133a along the front portion 132a of the rear end portion 132 and an upper portion 133b extending upward from the lower portion 133a. , A long hole 133c along the front-rear direction is opened in the lower portion 133a.

The lower portion 133a of the rear wall portion 133 is slidably mounted along the front portion 132a of the rear end portion 132, and the rear wall portion 133 is mounted in the front-rear direction and in the front-rear direction along the upwardly inclined direction in the lateral view. , It is supported by the rear end 132 so that the position can be changed in the vertical direction.

When the rear wall portion 133 is repositioned to the front side with respect to the rear end portion 132, the upper portion 133b of the rear wall portion 133 moves to the front side and moves to the lower side. When the rear wall portion 133 is repositioned to the rear side with respect to the rear end portion 132, the upper portion 133b of the rear wall portion 133 moves to the rear side and moves to the upper side.

The rear wall portion 133 (lower part 133a) is tightened by inserting and tightening the bolt 134, which is a position fixing portion, over the connecting hole of the front portion 132a of the rear end portion 132 and the elongated hole 133c of the rear wall portion 133. Is fixed to the rear end 132. By loosening the bolt 134, the rear wall portion 133 (lower part 133a) is released from being fixed, and the rear wall portion 133 can be repositioned to the front side and the rear side with respect to the rear end portion 132 as described above. ..

(Structure of index part of 2nd sheave case)
As shown in FIG. 10, two index portions 135 and 136 indicating positions where the rear wall portion 133 should be fixed are provided in the front-rear direction on the inner surface portions of the rear right portion and the left portion of the second sheave case 25. They are connected at intervals along. A nut 137 is connected to the front surface of the index unit 135, and a nut 137 is connected to the rear surface of the index unit 136.

The right portion of the upper portion 133b of the rear wall portion 133 is arranged between the index portions 135 and 136 of the rear right portion of the second sheave case 25, and the left portion of the upper portion 133b of the rear wall portion 133 is the second sheave case. It is arranged between the index units 135 and 136 on the left side of the rear part of 25.

When the rear wall portion 133 is repositioned to the front side and the rear side with respect to the rear end portion 132, the position where the upper portion 133b of the rear wall portion 133 comes into contact with the index portion 135 is the front position of the rear wall portion 133 and is rearward. The position where the upper portion 133b of the wall portion 133 comes into contact with the index portion 136 is the final position of the rear wall portion 133.

The state shown in FIG. 10 is a state in which the rear wall portion 133 is located at the foremost position, and the bolt 138, which is a connecting tool, is tightened over the upper portion 133b of the rear wall portion 133 and the nut 137 of the index portion 135. , The upper portion 133b of the rear wall portion 133 is connected to the index portion 135. As a result, the position of the rear wall portion 133 is fixed to the second sheave case 25 by the bolts 134 and 138.

When the bolt 138 is removed from the state shown in FIG. 10 and the connection of the rear wall portion 133 is released, the position of the rear wall portion 133 can be changed to the rear side. With the rear wall portion 133 in the final position, the bolt 138 is tightened over the upper portion 133b of the rear wall portion 133 and the nut 137 of the index portion 136, so that the upper portion 133b of the rear wall portion 133 becomes the index portion 136. Be connected.

When the upper portion 133b of the rear wall portion 133 is located between the index portions 135 and 136 and the position of the rear wall portion 133 is fixed by the bolt 134, the upper portion 133b of the rear wall portion 133 becomes the index portion 135 and 136. Since it is not connected, the bolt 138 is attached to the nut 137 of the index unit 135 or the nut 137 of the index unit 136.

When the bolts 134 and 138 are removed, the rear wall portion 133 can be pulled out from the rear end portion 132 to the rear side. After this, the rear wall portion 133 is turned upside down, the lower portion 133a of the rear wall portion 133 is placed on the front portion 132a of the rear end portion 132, and the upper portion 133b of the rear wall portion 133 is rearward as shown by the dotted line in FIG. It can be placed on the rear 132b of the end 132. This state is close to the state in which the rear wall portion 133 does not exist.

In this state, by inserting and tightening the bolt 134 over the connecting hole of the front portion 132a of the rear end portion 132 and the elongated hole 133c of the rear wall portion 133, the rear wall portion 133 becomes the rear end portion 132. Is fixed to. The bolt 138 is attached to the nut 137 of the index unit 135 or the nut 137 of the index unit 136.

(Structure of guide member)
As shown in FIGS. 4 and 6, in the second sorting portion 12, the flat plate-shaped guide member 141 made of a flexible rubber plate is second sorted from the position of the rear end portion 26b of the grain sieve 26. It is extended in an inclined state of forward descent toward the first product collecting unit 41 arranged below the unit 12. Grains as a processed product from the second sorting unit 12 are guided to the first product collecting unit 41 by the guide member 141.

As shown in FIGS. 4, 10 and 11, a flat plate-shaped guide member 139 made of a flexible rubber plate is connected to the front portion 132a of the rear end portion 132 of the second sheave case 25, and the second It is extended forward and downward toward the second product collection unit 42, which is a collection unit arranged below the sorting unit 12. A mixture of grains, straw scraps, etc. as a processed product from the second sorting unit 12 is guided to the second product collecting unit 42 by the guide member 139.

As shown in FIGS. 11 and 18, right and left slits 139b extending forward from the rear end of the guide member 139 are formed on the right and left portions of the rear end of the guide member 139. The right outer portion 139a with respect to the right slit 139b in the guide member 139 is bent upward and enters between the right portion of the second sheave case 25 and the right side wall 33, and the second sheave case The right portion 139a of the guide member 139 is bolted to the right bracket 25a connected to the 25.

The left outer portion 139a of the guide member 139 with respect to the left slit 139b is bent upward and enters between the left portion of the second sheave case 25 and the left side wall 33, and the second sheave case The left portion 139a of the guide member 139 is bolted to the left bracket 25a connected to the 25.

The right and left portions 139a of the guide member 139 form the right and left leakage prevention portions 140, and the leakage prevention portion 140 with respect to the guide member 139 between the second sheave case 25 and the side wall 33. Is placed in the upper position.

As a result, in the vicinity of the rear portion of the second sheave case 25, the gap between the second sheave case 25 and the side wall 33 is closed by the leak prevention portion 140, so that the second sheave case 25 and the side wall 33 The processed material is less likely to leak to the rear side from the gap between the two.

(Composition of inspection openings on the right and left side walls)
As shown in FIG. 2, on the left side wall 33, inspection openings 33b, 33c, 33d, 33e and inspection covers 142, 143, 144 are provided.

When the inspection cover 142 is removed, the inspection opening 33b of the upper side wall 33 with respect to the Glen Seeb 26 in the side view and the inspection opening 33c of the lower side wall 33 with respect to the Glen Seeb 26 in the side view are opened. The cover. When the inspection opening 33b of the side wall 33 is opened, the upper portion of the grain receive 26 can be inspected and cleaned.

When the inspection opening 33c of the side wall 33 is opened, the lower side of the grain receive 26 is opened, so that when the removed second sorting portion 12 is inserted from the rear side of the combine, the operator can use the guide member. 139, 141 (see the above-mentioned (configuration of the guide member)) can be appropriately arranged in the first product recovery unit 41 and the second product recovery unit 42.

When the inspection cover 143 is removed and the inspection opening 33d of the side wall 33 is opened, the vicinity of the interval changing portion 106 (see the above-mentioned (configuration for operating the interval changing portion)) is opened. The operator can adjust the wire 118, the coil spring 109, and the like.

When the inspection cover 144 is removed and the inspection opening 33e of the side wall 33 is opened, the vicinity of the second chaff sheave 32 is opened. The operator can change the tilt angle of the chaflip 110 of the second chaf sheave 32 (see (see the configuration of the second sorting unit) described above).

As shown in FIG. 3, on the right side wall 33, inspection openings 33f and 33g and inspection covers 157 and 158 are provided.
When the inspection cover 157 is removed and the inspection opening 33f of the side wall 33 is opened, the upper portion of the Glen Seeb 26 can be inspected and cleaned.

When the inspection cover 158 is removed and the inspection opening 33g of the side wall 33 is opened, when the removed first sorting unit 11 is inserted from the rear side of the combine, the operator can perform the threshing unit 5. A flexible guide member (not shown) at the front end can be adequately placed in the first sorting section 11.

(Structure of No. 1 collection unit, No. 2 collection unit, and opening for inspection of transport device)
As shown in FIGS. 5 and 12, in the bottom plate portion 145 of the first item collecting portion 41, the front end portion of the bottom plate portion 145 is supported so as to swing open and close around the shaft core P9 along the left-right direction, and the bottom plate portion A connecting bolt 146 that fixes the 145 in the closed state is provided at the rear end portion of the bottom plate portion 145.

By removing the connecting bolt 146 and opening the bottom plate portion 145 to the lower side for operation, the first item collecting portion 41 can be inspected and cleaned. As shown in FIG. 6, the bottom plate portion 159 of the second product recovery unit 42 is also configured in the same manner as the bottom plate portion 145 of the first product recovery unit 41.

As shown in FIG. 3, in the transport device 66 that supplies the grains collected by the first product recovery section 41 to the grain tank 6, the inspection openings 66a, 66b are provided in the lower, upper, and middle portions of the transport device 66. , 66c, 66d are provided.

A swing opening / closing type inspection cover 148 that covers the inspection opening 66a of the transport device 66, a removable opening / closing type inspection cover 149 that covers the inspection opening 66b of the transport device 66, and an inspection opening 66c of the transport device 66. A detachable opening / closing type inspection cover 151 and a detachable opening / closing type inspection cover 152 covering the inspection opening 66d of the transport device 66 are provided.

In the transport device 147 that supplies a mixture of grains, straw scraps, etc. collected by the second product recovery section 42 to the front part of the first sorting section 11, inspection openings are opened in the lower part, the upper part, and the middle part of the transfer device 147. Parts 147a, 147b, 147c, and 147d are provided.

A swing opening / closing type inspection cover 153 that covers the inspection opening 147a of the transport device 147, a removable opening / closing type inspection cover 154 that covers the inspection opening 147b of the transport device 147, and an inspection opening 147c of the transport device 147. A swing opening / closing type inspection cover 155 and a swing opening / closing type inspection cover 156 covering the inspection opening 147d of the transport device 147 are provided.

(Composition of wall insert)
As shown in FIGS. 4 and 5, the front part of the first sorting part 11 is extended to the front side so that the front part of the first sorting part 11 is located on the front side of the front part of the second sorting part 12. ing. The wall insert 47 is provided on the lower side with respect to the front part of the threshing part 5, is on the lower side with respect to the front part of the first sorting part 11, and is on the front side with respect to the front part of the second sorting part 12. It is arranged.

As shown in FIGS. 2 and 3, a circular opening 33a is opened in the front portion of the right and left side wall 33, and a flat plate shape extends over the front portion and the rear portion of the opening 33a of the side wall 33. The right and left support frames 61 are connected.

As shown in FIGS. 5, 7 and 14, the drive shaft 62 is rotatably supported over the right and left support frames 61, and the star-shaped right and left support plates 63 are the drive shaft 62 in a side view. Is connected to. The blade plate 64 is connected to each arm portion of the right and left support plates 63, and the blade plate 64 has a flat plate shape and is slightly bent in a side view. The wall insert 47 is rotationally driven around the axis P7 along the left-right direction of the drive shaft 62 in the counterclockwise direction of FIG.

As shown in FIGS. 5 and 12, the wall insert case 65 is provided on the upper side, the front side, and the lower side of the wall insert 47, and the outside of the wall insert 47 is covered by the wall insert case 65. A front case portion 65a and a rear case portion 65b are provided.

The right end of the case portion 65a on the front side of the wall insert case 65 is connected to the inner surface portion of the right side wall 33, and the left end portion of the case portion 65a on the front side of the wall insert case 65 is connected to the inner surface portion of the left side wall 33. There is. The front end portion 14a of the receiving net 14 and the front end portion 65f of the wall insert case 65 (front case portion 65a) are arranged at the same positions in the front-rear direction. A plurality of small openings 65c for draining water are opened at the bottom of the case portion 65b on the rear side of the wall insert case 65.

As shown in FIG. 1, a cover 69 made of synthetic resin is provided on the outside of the left side wall 33. In the cover 69, a large number of small openings 69a are opened in a portion of the left side wall 33 facing the opening 33a.

With the above configuration, when the wall insert 47 is rotationally driven, air is introduced into the wall insert 47 from the opening 33a of the side wall 33, and the sorting wind of the wall insert 47 is directed diagonally upward from the vicinity of the lower part of the wall insert 47. Right and left side walls as described later (Structure of 1st air passage and 1st, 2nd and 5th wind direction members) (Structure of 2nd air passage and 3rd, 4th and 6th wind direction members). It is supplied to the first sorting unit 11 and the second sorting unit 12 from between 33.

(Structure of No. 1 collection part, No. 2 collection part, front partition part and back partition part)
As shown in FIGS. 4 and 5, a transport screw 50 is provided in the first product collecting unit 41 so as to be rotatable around the screw shaft core P5 along the left-right direction. The second object collecting unit 42 is provided with a transport screw 53 that can be rotationally driven around the screw shaft core P6 along the left-right direction.

As shown in FIGS. 4, 5 and 12, a chevron-shaped front partition 54 projecting upward in a side view is provided between the first collection section 41 and the wall insert 47. The front partition 54 is provided with a bottom portion 54b extending diagonally downward from the top portion 54a and an inclined portion 54c extending diagonally downward from the top portion 54a.

The inclined portion 54c of the front partition portion 54 is connected to the lower part of the first product collecting unit 41, and the first product collecting unit 41 is below the second sorting unit 12 and at the bottom of the front partition portion 54. It is provided on the rear side with respect to the top portion 54a, which is the rear end portion of the 54b.

The bottom portion 54b of the front partition portion 54 is connected to the lower end portion 65d of the wall insert case 65 (rear end portion of the case portion 65b), and the bottom portion 54b of the front partition portion 54 is connected to the lower end portion 65d of the wall insert case 65 (case portion 65b). It is in a state of being extended from the rear end) to the rear side.

The front end portion of the case portion 65b on the rear side of the wall insert case 65 is overlapped with the lower end portion of the case portion 65a on the front side of the wall insert case 65 from the front side and bolted. The front end portion of the bottom portion 54b of the front partition portion 54 and the lower end portion 65d of the case portion 65b on the rear side of the wall insert case 65 are bent downward and abutted against each other, and are connected by bolts along the front-rear direction. By removing the bolt, the case portion 65b on the rear side of the wall insert case 65 can be replaced with another case portion 65b.

As shown in FIGS. 4 and 6, a chevron-shaped rear partition 55 projecting upward in a side view is provided between the first collection section 41 and the second recovery section 42. The rear partition 55 is provided with a bottom portion 55b extending diagonally downward from the top portion 55a and a vertical wall portion 55c extending downward from the top portion 55a. The bottom portion 55b of the rear partition portion 55 is connected to the lower part of the first product collection unit 41, and the vertical wall portion 55c of the rear partition portion 55 is connected to the front portion and the lower portion of the second product collection unit 42. ..

(Structure of the first air passage and the first, second, and fifth wind direction members)
As shown in FIGS. 4, 5 and 7, a flat plate-shaped first wind direction member 71, which is an upward wind direction member, is provided on the rear side of the wall insert 47 at the same height as the drive shaft 62. The first wind direction member 71 is provided over the right and left side walls 33, and is formed in a backward inclined state in which the front portion of the first wind direction member 71 is lower than the rear portion, and the first wind direction member 71 is formed. The rear end portion 71a is extended substantially horizontally.

The fifth wind direction member 75 extends obliquely upward and backward from the upper end portion 65e of the wall insert case 65. The first air passage A1 is formed between the first wind direction member 71 and the fifth wind direction member 75, and the second air passage A2 is formed between the first wind direction member 71 and the bottom portion 54b of the front partition portion 54. Is formed.

The sorting wind from the wall insert 47 is branched by the first wind direction member 71, guided to the first air passage A1, and guided by the first air passage A1 between the first sorting unit 11 and the second sorting unit 12. To.
The sorting wind from the wall insert 47 is branched by the first wind direction member 71 and guided to the second air passage A2, as described later (configuration of the second air passage and the third, fourth and sixth wind direction members). In addition, the second air passage A2 guides the second sorting unit 12 to the second sorting unit 12 from below.

The flat plate-shaped second wind direction member 72 is arranged on the lower side with respect to the front portion of the first sorting portion 11 and on the front side with respect to the front portion of the second sorting portion 12, and the fifth wind direction member 75 It is arranged between the wall portion 48 and the wall portion 48 of the second sorting unit 12. The second wind direction member 72 is provided over the right and left side walls 33, and is formed in an upwardly inclined state in which the front portion of the second wind direction member 72 is lower than the rear portion.

In the sorting wind of the first air passage A1, the sorting wind of the first air passage A1 passing above the second wind direction member 72 flows along the bottom of the first Glenpan 21 and is guided to the gap 60.
The sorting wind of the first air passage A1 passing below the second wind direction member 72 is first from between the wall portion 48 provided at the front end portion of the second sorting portion 12 and the second wind direction member 72. It is guided between the sorting unit 11 and the second sorting unit 12.

(Structure of 2nd air passage and 3rd, 4th, 6th wind direction members)
As shown in FIGS. 4, 5 and 7, a flat plate-shaped third wind direction member 73, which is a downward wind direction member, is provided on the rear side of the wall insert 47 and on the lower side of the first wind direction member 71. It is provided over the right and left side walls 33.

The third wind direction member 73 is formed in a rearward inclined state in which the front portion of the third wind direction member 73 is lower than the rear portion, and is arranged along the bottom portion 54b of the front partition portion 54. The rear end portion 73a is extended downward.

The flat plate-shaped fourth wind direction member 74 is provided at a position spaced rearward from the rear end portion 73a of the third wind direction member 73, and is provided over the right and left side walls 33. The fourth wind direction member 74 is formed in a backward inclined state in which the front portion of the fourth wind direction member 74 is lower than the rear portion, and is arranged along the bottom portion 54b of the front partition portion 54. The rear end portion 74a of the fourth wind direction member 74 is extended downward and is located above the top portion 54a of the front partition portion 54.

The right and left sixth wind direction members 76 are arranged between the first wind direction member 71 and the third wind direction member 73. The sixth wind direction member 76 has a flat plate shape with a large number of openings opened, and the rear portion of the sixth wind direction member 76 is inclined so as to be closer to the left and right central portions between the right and left side walls 33 than the front portion. It is arranged and connected to the first wind direction member 71 and the third wind direction member 73.

The sorting wind from the wall insert 47 is branched by the first wind direction member 71 and guided to the second air passage A2, and the sorting wind of the second air passage A2 moves between the first wind direction member 71 and the third wind direction member 73. As it flows, it flows along the bottom of the second Glenpan 22 and is guided to the bottom of the Glensive 26, and is guided to the second sorting section 12 from the lower side with respect to the second sorting section 12.

When the sorting wind of the second air passage A2 passes between the first wind direction member 71 and the third wind direction member 73, the sorting wind of the second air passage A2 (Karamin 47) flowing along the right side wall 33 is The sixth wind direction member 76 on the right guides the wind direction member 76 toward the left and right central portions between the right and left side walls 33, and the second air passage A2 (Karamin) passes through the opening of the sixth wind direction member 76 on the right. The sorting wind of 47) flows along the right side wall 33.

When the sorting wind of the second air passage A2 passes between the first wind direction member 71 and the third wind direction member 73, the sorting wind of the second air passage A2 (Karamin 47) flowing along the left side wall 33 is The left sixth wind direction member 76 guides the wind direction member 76 toward the left and right center between the right and left side walls 33, and the second air passage A2 (Karamin) passes through the opening of the left sixth wind direction member 76. The sorting wind of 47) flows along the left side wall 33.

A part of the sorting wind of the second air passage A2 is branched by the third wind direction member 73, and the sorting wind branched from the second air passage A2 is along the bottom 54b of the front partition portion 54 by the third wind direction member 73. Is guided by the fourth wind direction member 74 along the bottom portion 54b of the front partition portion 54.

As a result, the sorting wind (sorting wind branched from the second air passage A2) along the bottom 54b of the front partition 54 is between the third wind direction member 73 and the bottom 54b of the front partition 54, and the fourth It passes between the wind direction member 74 and the bottom portion 54b of the front partition portion 54 and is guided to the upper part of the first item collecting portion 41.

The sorting wind (sorting wind branched from the second air passage A2) along the bottom 54b of the front partition 54 is sent from between the third wind direction member 73 and the bottom 54b of the front partition 54 to the fourth wind direction member 74. When passing between the bottom portion 54b of the front partition portion 54, air is selected from between the third wind direction member 73 and the fourth wind direction member 74 along the bottom portion 54b of the front partition portion 54 (second air passage). It can be expected that the wind will merge with the sorting wind branched from A2.

(Structure of rotary drive of transport screw of No. 1 and No. 2 collection section)
As shown in FIGS. 2 and 15, the transmission shaft 27 is rotatably supported by the rear portion of the left side wall 33, and is connected to the pulley 17b connected to the left portion of the transmission shaft 17 and to the transmission shaft 27. A transmission belt 28 is attached over the pulley 27a.

The relay shaft 56 is rotatably supported by the left side wall 33, and the transmission belt 57 is attached to the pulley 56a connected to the relay shaft 56 and the pulley 27c connected to the transmission shaft 27. ..

The pulley 50a is connected to the right end of the transport screw 50, and the pulley 53a is connected to the right end of the transport screw 53. A transmission belt 58 is attached to a pulley (not shown) connected to the relay shaft 56, a pulley 50a of the transfer screw 50, and a pulley 53a of the transfer screw 53. A transmission belt 59 is attached to a pulley (not shown) connected to the relay shaft 56 and a pulley 9a provided on the left side of the feeder 9.

As described above (configuration of threshing section), the power transmitted to the transmission shaft 17 is transmitted to the relay shaft 56 via the transmission shaft 27 and the transmission belts 28 and 57, and is transmitted to the relay shaft 56 via the transmission belt 58. It is transmitted to the transfer screws 50 and 53, and the transfer screws 50 and 53 are rotationally driven. The power transmitted to the relay shaft 56 is transmitted to the pulley 9a of the feeder 9 via the transmission belt 59, and is transmitted from the feeder 9 to the cutting section 10.

With the above configuration, when the grains as the sorted processed product fall from the second sorting section 12 to the first item collecting section 41, the right side wall while the grains are collected by the rotary-driven transport screw 50. It is transported to 33 and is supplied to the grain tank 6 from the outlet of the right side wall 33 by the transport device 66 (see FIG. 3).

When a mixture of grains, straw scraps, etc. as the sorted processed product falls from the second sorting unit 12 to the second product collecting unit 42, the right side wall is collected while the mixture is collected by the rotary-driven transport screw 53. It is transported to 33, and is supplied to the front portion of the first sorting unit 11 by a transport device 147 (see FIG. 3) from the outlet of the right side wall 33.

(Structural drive of wall insert)
As shown in FIGS. 2 and 7, in the wall insert 47, a split pulley type variable pulley 67 is attached to the left end of the drive shaft 62, and a pulley (not shown) connected to the relay shaft 56 and a pulley (not shown). A transmission belt 68 is attached over the variable pulley 67. The power transmitted to the relay shaft 56 is transmitted to the variable pulley 67 via the transmission belt 68, and the wall insert 47 is rotationally driven in the counterclockwise direction of FIG.

In the variable pulley 67, the rotation speed of the wall insert 47 can be changed by changing the distance between the opposing pulley portions and changing the radius in which the transmission belt 68 contacts the variable pulley 67.

When the distance between the pulley portions of the variable pulley 67 is narrowed, the radius at which the transmission belt 68 contacts the variable pulley 67 becomes large, the wall insert 47 is rotationally driven at a low speed, and the air volume of the wall insert 47 decreases. This state is suitable for a state where the amount of processed material is small.

When the distance between the pulley portions of the variable pulley 67 is widened, the radius at which the transmission belt 68 contacts the variable pulley 67 becomes small, the wall insert 47 is rotationally driven at high speed, and the air volume of the wall insert 47 increases. This state is suitable for a state in which there are many processed products.

As shown in FIGS. 2, 12 and 13, two tension pulleys 70 and 77 are provided for the transmission belt 68. A support portion 78 for supporting the tension pulleys 70 and 77 is provided, and the support portion 78 is connected to a portion of the outer surface portion of the left side wall 33 adjacent to the rear portion of the upper portion of the opening 33a of the side wall 33. ..

As described above (Structure of wall insert), the right end portion and the left end portion of the wall insert case 65 are connected to the inner surface portions of the right and left side wall 33. The support portion 78 is connected to a portion of the outer surface portion of the left side wall 33 facing the inner surface portion of the left side wall 33 to which the left end portion of the wall insert case 65 is connected.

The support portion 78 has a flat substrate 78a, a fulcrum shaft 78b connected to the substrate 78a, a reinforcing plate 78c bent into an angle and connected to the substrate 78a and the fulcrum shaft 78b, and swingable around the fulcrum shaft 78b. A supported arm 78d or the like is provided.

The substrate 78a of the support portion 78 is connected to the outer surface portion of the side wall 33 by a plurality of bolts 79, and the tension spring 80 is attached to the arm 78d of the support portion 78. The tension pulley 70 is rotatably supported by the fulcrum shaft 78b of the support portion 78, and the tension pulley 77 is rotatably supported by the arm 78d of the support portion 78.

As described above, when the distance between the pulley portions of the variable pulley 67 is changed and the radius at which the transmission belt 68 contacts the variable pulley 67 is changed, the tension of the transmission belt 68 is maintained correspondingly. In addition, the arm 78d of the support portion 78 and the tension pulley 77 swing.

(Structure of the rotation speed change part that can change the air volume of the wall insert selection wind by changing the rotation speed of the wall insert)
As shown in FIGS. 7, 11, 12, and 13, the reinforcing member 81 formed by bending the plate material into a channel shape is located on the rear side of the wall insert 47 and at the same height as the drive shaft 62 and the support frame 61. It is arranged at a position and connected to the outer surface portion of the left side wall 33.

As described above (configuration of the first air passage and the first, second, and fifth wind direction members) (configuration of the second air passage and the third, fourth, and sixth wind direction members), the right end portion of the first wind direction member 71. And the left end, and the right and left ends of the third wind direction member 73 are connected to the inner surfaces of the right and left side walls 33.
In this case, the first wind direction member 71 and the third wind direction member 73 have an inner surface portion facing the reinforcing member 81 on the left side wall 33 to which the reinforcing member 81 is connected and an inner surface facing the reinforcing member 81 on the right side wall 33. It is provided over the section.

At the base of the variable pulley 67, an interval changing mechanism 82 capable of changing the interval of the pulley portion of the variable pulley 67 is provided. The rotation speed changing unit 83 is supported by the reinforcing member 81, the interval changing mechanism 82 is operated by the rotation speed changing unit 83, the rotation speed of the wall insert 47 is changed, and the air volume of the sorting wind of the wall insert 47 is changed. ..

The rotation speed changing unit 83 is provided with an operation gear 84, an electric motor 85, a gear mechanism 86, an operation rod 87, a position sensor 88, and the like. The operating gear 84 is supported by the reinforcing member 81 so as to swing around the axis along the left-right direction, and the electric motor 85 and the gear mechanism 86 are connected to the reinforcing member 81. The operation rod 87 is connected to the bracket 84a provided on the operation gear 84 and the interval changing mechanism 82.

The pinion gear 86a of the gear mechanism 86 is rotationally driven by the power of the electric motor 85, the operation gear 84 is swung by the pinion gear 86a of the gear mechanism 86, the operation rod 87 is pushed and pulled, and the interval is changed by the operation rod 87. The mechanism 82 is operated. Two stopper portions 81a are connected to the reinforcing member 81, and the position where the operating gear 84 is stopped by the stopper portion 81a of the reinforcing member 81 is the operating limit of the interval changing mechanism 82.

The angle-shaped support bracket 89 is connected to the reinforcing member 81, and the potentiometer type position sensor 88 is supported by the support bracket 89. A detection arm 88a capable of swinging around the same shaft core as the shaft core on which the operation gear 84 swings is provided in the position sensor 88, and the detection arm 88a of the position sensor 88 is connected to the bracket 84b of the operation gear 84. ing. When the operating gear 84 is swung, the detection arm 88a of the position sensor 88 swings together, and the position sensor 88 detects the position of the operating gear 84.

A relay switch 90 for operating the electric motor 85 is connected to the inner surface portion of the reinforcing member 81 and is arranged between the outer surface portion of the left side wall 33 and the reinforcing member 81.
The cover 91 bent in a channel shape is connected to the reinforcing member 81, and the rotation speed changing portion 83 is covered by the cover 91. The front portion of the cover 91 is opened, and the operating rod 87 passes through the front portion of the cover 91. The rear part of the cover 91 is opened, and the electric motor 85 and the gear mechanism 86 protrude slightly from the rear part of the cover 91.

A notch 91a is provided in the front portion of the cover 91, and the position sensor 88 protrudes from the notch 91a of the cover 91. An opening 91b for discharging small dust or the like is opened at the lower part of the cover 91.

(Structure of reciprocating drive of the first sorting unit and the second sorting unit)
As shown in FIGS. 15, 17 and 18, the crankshaft 29, which is a drive unit, is rotatably supported around the shaft core P2 along the left-right direction and is supported over the right and left side walls 33, and the transmission shaft 27 A transmission chain 30 is attached to the sprocket 27b connected to the crankshaft 29 and the sprocket 29a connected to the crankshaft 29.

The right and left fulcrum shafts 98 are connected to the right and left side walls 33. The right and left drive members 51, which are the first drive mechanisms, are supported by the fulcrum shaft 98 so as to be able to reciprocate and swing around the axis P3 along the left-right direction, and are arranged outside the right and left side walls 33. Has been done. The linking link 34 is connected to the crank portion 29b eccentric from the shaft core P2 of the crank shaft 29 and the upper parts of the right and left drive members 51.

A linking shaft 35 is connected to the lower part of the right and left drive members 51. The right and left connecting members 36 are connected to the linking shaft 35, the right and left connecting members 36 are connected to the rear portion of the second sorting unit 12 (second sheave case 25), and the driving member 51 is second. It is connected to the sorting unit 12 (second sheave case 25).

The right and left drive arms 52, which are the second drive mechanisms, are supported by the right and left side walls 33 so as to be able to reciprocate and swing around the arm axis P4 along the left-right direction, and the right and left side walls 33 Is placed inside. The drive arm 52 has a balance shape extending from the arm shaft core P4 to one side and the other side.

The linking shaft 37 is rotatably supported over one portion with respect to the arm shaft core P4 of the right and left drive arms 52, and the rear portion of the first sorting portion 11 (first sheave case 23) is the linking shaft 37. One portion of the drive arm 52 with respect to the arm axis P4 is connected to the first sorting unit 11 (first sheave case 23).

The other part of the drive arm 52 with respect to the arm shaft P4 is connected to the linking shaft 35, and the other part of the drive arm 52 with respect to the arm shaft P4 is connected via the linking shaft 35 and the connecting member 36. , Is connected to the second sorting unit 12 (second sheave case 25).

As shown in FIG. 5, guide portions 38 and 39 are connected to the inner surface portions of the right and left side wall 33 along the front-rear direction. Rollers 40 are supported on the right and left portions of the front portion of the first sorting portion 11 (first sheave case 23), and the rollers 40 are supported by the guide portion 38. Rollers 43 are supported on the right and left portions of the front portion of the second sorting portion 12 (second sheave case 25), and the rollers 43 are supported by the guide portion 39.

The front part of the first sorting part 11 and the front part of the second sorting part 12 are supported by guide parts 38, 39 and rollers 40, 43 so as to be reciprocally movable along the front-rear direction. The rear portion of the first sorting unit 11 and the rear portion of the second sorting unit 12 are supported so as to be reciprocally movable along the front-rear direction by reciprocating swing around the arm axis P4 of the drive arm 52. In this way, the first sorting unit 11 and the second sorting unit 12 are supported so as to be reciprocally movable along the front-rear direction.

(Structure of tension wheel provided for transmission chain)
As shown in FIGS. 15 and 16, a tension wheel body 119 for maintaining the tension of the transmission chain 30 is provided below the transmission chain 30. The support member 120 formed in a channel shape is connected to the left side wall 33, and a pair of angle-shaped guide portions 120a are connected to the support member 120.

The tension wheel body 119 is rotatably supported by the channel-shaped wheel body support portion 121 around the axis along the left-right direction, and the wheel body support portion 121 is vertically supported between the guide portions 120a of the support member 120. It is arranged so that it can move. A guide rod 121a connected to the wheel body support portion 121 is inserted into the boss portion 120b of the support member 120 so as to be slidable up and down, and a nut 121b for preventing disconnection is inserted in the lower part of the guide rod 121a of the wheel body support portion 121. Is installed.

The guide rod 121a of the wheel body support portion 121 is inserted into the coil-shaped spring 122, and the spring 122 is provided between the wheel body support portion 121 and the support member 120 in a state of being compressed with respect to the free length. Has been done.

As the spring 122 tries to extend from the compressed state with respect to the free length, the tension wheel body 119 and the wheel body support portion 121 are pushed up by the urging force of the spring 122, and the tension wheel body 119 of the transmission chain 30 Pressed against the lower portion, the tension of the transmission chain 30 is maintained. In this case, the wheel body support portion 121 is guided by the guide portion 120a of the support member 120, and the wheel body support portion 121 moves up and down stably without tilting.

(Structure of drive member)
As shown in FIGS. 17, 18 and 19, the right and left drive members 51 include a first member 101, a second member 102, a third member 103, a boss portion 104, a first connection portion 111 and a second connection portion 112. Etc. The right and left drive members 51 are formed in a triangular shape in a side view, and are configured to be symmetrical with each other.

The boss portion 104 is rotatably supported by the fulcrum shaft 98 and rotatably supported around the shaft core P3.
The first member 101 has a plate shape formed so that the width in the swing direction is larger than the width in the direction orthogonal to the swing direction, and the connecting hole 101a is opened at the end. The first member 101 is connected to the boss portion 104 and is swingably supported around the shaft core P3.

The second member 102 has a plate shape formed so that the width in the swing direction is larger than the width in the direction orthogonal to the swing direction, and the connecting hole 102a is opened at the end. The second member 102 is connected to a common boss portion 104 to which the first member 101 is connected, and is swingably supported around the shaft core P3.

The third member 103 includes a portion 103a along the first member 101, a portion 103b along the second member 102, a connecting portion of the crankshaft 29 and the first member 101, a second sorting portion 12 (linkage shaft 35), and a second member. It is formed in a side view triangular shape having a portion 103c or the like extending over the connecting portion of 102. The connecting holes 103d are opened at the ends of the portions 103a and 103c of the third member 103, and the connecting holes 103e are opened at the ends of the portions 103b and 103c of the third member 103.

The portions 103a, 103b, 103c of the third member 103 have a plate shape formed so that the width in the swing direction is larger than the width in the direction orthogonal to the swing direction, and the third member 103 has a plate shape. The portions 103a, 103b, 103c are integrally formed. The portions 103a and 103b of the third member 103 are connected to a common boss portion 104 to which the first member 101 and the second member 102 are connected, and are swingably supported around the shaft core P3.

The first member 101 and the second member 102 are arranged at intervals in the direction along the axis P3 and are connected to the boss portion 104, and the first member 101 is connected to the second member 102. The first and second sorting units 11 and 12 are arranged on the left and right central portions (the side closer to the side wall 33). The third member 103 is arranged between the first member 101 and the second member 102 in front view and rear view, and the portions 103a and 103b of the third member 103 are connected to the boss portion 104.

The first connecting portion 111 is arranged between the end portion of the first member 101 and the end portion of the third member 103 (parts 103a, 103c) in front view and rear view. A bolt 128 is inserted and tightened over the connecting hole 101a of the first member 101, the connecting hole 03d of the third member 103, and the first connecting portion 111, and the first connecting portion 111 is the end of the first member 101. It is connected to the portion and the end portion of the third member 103 (parts 103a, 103c).
The connecting shaft 34a of the linking link 34 is connected to the boss portion 111a of the first connecting portion 111, and the crankshaft 29 and the first connecting portion 111 are connected via the linking link 34.

The second connecting portion 112 is arranged between the end portion of the second member 102 and the end portion of the third member 103 (parts 103b, 103c) in front view and rear view. A bolt 128 is inserted and tightened over the connecting hole 102a of the second member 102, the connecting hole 103e of the third member 103, and the second connecting portion 112, and the second connecting portion 112 is the end of the second member 102. It is connected to the portion and the end portion of the third member 103 (parts 103b, 103c).

The link 34 is connected to the crank portion 29b of the crankshaft 29 and the boss portion 111a of the first connection portion 111, and the crankshaft 29 and the drive member 51 are connected to each other.
The linking shaft 35 is connected to the boss portion 112a of the second connecting portion 112, and the second sorting portion 12 and the second connecting portion 112 are connected via the linking shaft 35.

(Structure of the connection part between the drive arm and the linking shaft)
As shown in FIG. 20, a pair of square bar-shaped connecting portions 52a are provided in the lower portion of the drive arm 52, and a connecting hole 52b is opened in the connecting portion 52a. A connecting portion 52c and a connecting portion 52d are provided below the drive arm 52.

The connecting portion 52c of the drive arm 52 has a shape in which a rod-shaped portion is integrally formed in a semicircular portion, and a connecting hole 52e having an elongated cross section is opened in the rod-shaped portion. The connecting portion 52d of the drive arm 52 has a semicircular shape.

The connecting portion 52c is inserted between the connecting portions 52a of the drive arm 52, the bolt 125 is inserted and tightened over the connecting holes 52b and 52e of the drive arm 52, and the connecting portion 52c is inserted into the connecting portion 52a of the drive arm 52. It is connected.

The arm length adjusting portion 127 is configured by the connecting hole 52e of the drive arm 52, and within the range of the connecting hole 52e of the drive arm 52, the arm shaft core P4 of the drive arm 52 to the second sorting portion 12 (linking shaft 35). ) Can be adjusted in length to the connection part.

A rubber cylindrical elastic body 123 is attached to the linking shaft 35. The elastic body 123 is sandwiched between the connecting portions 52c and 52d of the drive arm 52, the bolt 126 is inserted and tightened over the connecting portions 52c and 52d of the drive arm 52, and the drive arm 52 and the linking shaft 35 are connected to the elastic body 123. It is connected via.

A plurality of convex portions 52f are provided on the inner surface of the connecting portion 52d of the drive arm 52, and flange-shaped portions facing the linking shaft 35 are provided at both ends of the connecting portion 52d of the drive arm 52 in the direction along the linking shaft 35. A stopper (not shown) is provided.

As described above, in a state where the elastic body 123 is sandwiched between the connecting portions 52c and 52d of the drive arm 52, the convex portion 52f of the connecting portion 52d of the drive arm 52 bites into the outer surface portion of the elastic body 123, and the drive arm 52 When the stop portion of the connecting portion 52d hits the end portion of the elastic body 123, the displacement of the elastic body 123 is prevented.

(Structure of the connecting part between the connecting member and the linking shaft)
As shown in FIGS. 10 and 17, a semicircular connecting portion 36a is provided below the connecting member 36, and a rubber cylindrical elastic body 124 is attached to the linking shaft 35. The elastic body 124 is sandwiched by the connecting portion 36a of the connecting member 36, the bolt 126 is inserted into the connecting portion 36a of the connecting member 36 and tightened, and the connecting member 36 and the linking shaft 35 are connected via the elastic body 124. There is.
The connecting portion 36a of the connecting member 36 is provided with a convex portion 52f of the connecting portion 52d of the drive arm 52 and a convex portion 36b and a stopping portion (not shown) similar to the stopping portion.

As a result, the elastic body 123 is provided at the connecting portion between the drive arm 52 and the second sorting portion 12, and the elastic bodies 123 and 124 are provided at the connecting portion between the driving member 51 and the second sorting portion 12. ing.

As shown in FIG. 15, instead of the elastic bodies 123 and 124 being provided, the elastic body 123 may be provided and the elastic body 124 may be abolished. The elastic body 124 may be provided and the elastic body 123 may be abolished. An elastic body 123 may be provided at a connecting portion between the driving member 51 (second connecting portion 112) and the linking shaft 37.

(Structure of drive member and wear prevention member provided between drive arm and side wall)
As shown in FIG. 15, in the right drive member 51 and the right side wall 33, and the left drive member 51 and the left side wall 33, the drive member 51 (first member 101) and the side wall 33 are close to each other. ..

The wear prevention member 129 having excellent wear resistance is attached to a portion of the outer surface of the side wall 33 facing the swing range of the drive member 51 (first member 101), and the first sorting portion 11 and the second sorting portion 11 and the second sorting portion 101 are attached. A wear prevention member 129 is arranged between the side wall 33 that covers the outside of the portion 12 and the drive member 51.

In this case, the wear prevention member 129 may be attached to the drive member 51 (first member 101) without being attached to the side wall 33, or may be attached to both the side wall 33 and the drive member 51 (first member 101). You may.

In the right rear part of the right drive arm 52 and the second sorting unit 12 (second sheave case 25), and in the rear left part of the left drive arm 52 and the second sorting unit 12 (second sheave case 25). , The drive arm 52 and the second sorting unit 12 (second sheave case 25) are close to each other.

A wear prevention member 130 having excellent wear resistance is attached to a portion of the outer surface of the rear portion of the second sorting portion 12 (second sheave case 25) facing the swing range of the drive arm 52, and the drive arm 52 is attached. The wear prevention member 130 is arranged between the second sorting unit 12 and the second sorting unit 12.

In this case, the wear prevention member 130 may be attached to the drive arm 52 instead of being attached to the second sorting unit 12 (second sheave case 25), and the second sorting unit 12 (second sheave case 25) and It may be attached to both of the drive arms 52.

The wear prevention member 130 is attached to a portion of the outer surface portion of the rear portion of the first sorting portion 11 (first sheave case 23) facing the swing range of the drive arm 52, and the drive arm 52 and the first sorting portion 11 are attached. The wear prevention member 130 may be arranged between the and.

In this case, the wear prevention member 130 may be attached to the drive arm 52 without being attached to the first sorting unit 11 (first sheave case 23), and the first sorting unit 11 (first sheave case 23) and It may be attached to both of the drive arms 52.

Instead of providing the wear prevention members 129 and 130 as described above, the wear prevention member 129 may be provided and the wear prevention member 130 may be abolished. The wear prevention member 130 may be provided and the wear prevention member 129 may be abolished.

(A state in which the first sorting unit and the second sorting unit are reciprocally driven)
Based on the above-mentioned (configuration of reciprocating drive of the first sorting unit and the second sorting unit), the first sorting unit 11 and the second sorting unit 12 are oriented in opposite directions along the front-rear direction as described below. It is driven back and forth.

As shown in FIGS. 15, 21 and 22, the power of the engine 8 is transmitted to the transmission shaft 17 via the transmission belt 18 (see (see the configuration of the grain removal section) described above), and is transmitted via the transmission belt 28. It is transmitted to the shaft 27 and is transmitted to the crankshaft 29 via the transmission chain 30.

When the crankshaft 29 is rotationally driven, the drive member 51 is driven to reciprocate and swing around the shaft core P3 via the link 34, and the drive member 51 reciprocates and drives the drive member 51 via the link shaft 35 and the connecting member 36. , The second sorting unit 12 is reciprocated along the front-rear direction.

By reciprocating the second sorting unit 12 in the front-rear direction, the drive arm 52 is reciprocally swung around the arm shaft core P4 via the linking shaft 35, and the first sorting unit 11 is reciprocated along the front-rear direction. It is driven back and forth.

As shown in FIG. 21, when the second sorting unit 12 is driven to the front side, the drive arm 52 swings in the clockwise direction of FIG. 21 and the first sorting unit 11 is driven to the rear side. As shown in FIG. 22, when the second sorting unit 12 is driven to the rear side, the drive arm 52 swings counterclockwise in FIG. 22, and the first sorting unit 11 is driven to the front side. In this way, the first sorting unit 11 and the second sorting unit 12 are reciprocated in opposite directions along the front-rear direction.

As shown in FIG. 4, the front-rear length of the second sorting unit 12 (second sheave case 25) is shorter than the front-rear length of the first sorting unit 11 (first sheave case 23). The plate thickness of the second sheave case 25 is set to be slightly thicker than the plate thickness of the first sheave case 23, and the weight of the first sorting unit 11 and the weight of the second sorting unit 12 are substantially the same. It is configured as follows.

The above state is a state in which the first sorting unit 11 and the second sorting unit 12 are reciprocally driven separately by the drive member 51 which is the first drive mechanism and the drive arm 52 which is the second drive mechanism. ..
The driving member 51, which is the first driving mechanism, reciprocates the second sorting unit 12, which is one of the first sorting unit 11 and the second sorting unit 12.
The reciprocating drive of the second sorting unit 12, which is one of the first sorting unit 11 and the second sorting unit 12, is carried out by the drive arm 52, which is the second driving mechanism, of the first sorting unit 11 and the second sorting unit 12. It is transmitted to the other first sorting unit 11, and the first sorting unit 11 which is the other of the first sorting unit 11 and the second sorting unit 12 is reciprocally driven.

(Positional relationship of each part in the first sorting part and the second sorting part)
As described above (a state in which the first sorting unit and the second sorting unit are reciprocally driven), when the first sorting unit 11 and the second sorting unit 12 are reciprocally driven in the front-rear direction, the positional relationship of each unit Is as described below.

The states shown in FIGS. 4, 5 and 6 are a state in which the first sorting unit 11 is located at the rear end of the reciprocating movement and the second sorting unit 12 is located at the front end of the reciprocating drive.
With the second sorting unit 12 located at the front end of the reciprocating drive, the rear end 22a of the second Glenpan 22 (front end 26a of the Glen Sheave 26) vertically passes through the top 54a of the front partition 54 in a side view. It is located on the rear side of the line L1.

With the second sorting unit 12 located at the front end of the reciprocating drive, the rear end 21b of the first Glenpan 21 and the front end 31a of the first chaff sheave 31 are located above the front and rear center 22b of the second Glenpan 22. doing.

As a result, the first sorting unit 11 is located at the rear end of the reciprocating movement, the second sorting unit 12 is located at the front end of the reciprocating drive, and the first sorting unit 11 is located at the front end of the reciprocating movement. Then, in a state where the second sorting unit 12 is located at the rear end of the reciprocating drive, the rear portion of the first Glenpan 21 and the front portion of the first chaff receive 31 and the second Glenpan 22 overlap in a plan view. , The first Glenpan 21, the first chaff sheave 31, and the second Glenpan 22 are arranged.

The rear end portion 26b of the Glen Seeb 26 is located between the vertical straight line L2 passing through the top portion 55a of the rear partition portion 55 and the vertical straight line L3 passing through the screw shaft core P6 of the second product collecting portion 42 in a side view. There is.

In this case, the rear end portion 26b of the Glen Seeb 26 is located slightly rearward of the vertical straight line L2 in the side view, with the second sorting portion 12 located at the front end portion of the reciprocating drive. With the second sorting unit 12 located at the rear end of the reciprocating drive, the rear end 26b of the Glen Seeb 26 is located slightly forward of the vertical line L3 in a side view.

With the second sorting unit 12 located at the front end of the reciprocating drive, the front end 32a of the second chaff sheave 32 passes through the rear end of the transport screw 53 of the second collection unit 42 in a side view. The second chaff sheave 32 is provided so as to extend rearward from the vertical line L4 passing through the rear end portion of the transport screw 53 of the second object collecting portion 42 in a side view.

The straw rack 24 is extended rearward until the rear end portion 24a of the straw rack 24 is located above the rear portion of the second chaff sheave 32.
The backward tilt angle B1 of the first chaff sheave 31 with respect to the horizontal plane is set to be larger than the backward tilt angle B2 of the first Glenpan 21 with respect to the horizontal plane.

Until the front end 21a of the first Glenpan 21 is located at the same position in the front-rear direction as the front end 65f of the wall insert case 65 (front case portion 65a), the first grain pan 21 is connected to the receiving net 14 and the wall insert case 65. It is extended to the front side through the gap.

(First alternative form of carrying out the invention)
A plurality of wall inserts 47 may be provided so that the sorting wind of one wall insert 47 is supplied to the first air passage A1 and the sorting wind of another wall insert 47 is supplied to the second air passage A2. ..

(Second alternative form of carrying out the invention)
The first sorting unit 11 and the second sorting unit 12 may be configured to be reciprocated in the same direction along the front-rear direction.

The present invention can be applied not only to a threshing device for a conventional combine harvester but also to a threshing device mounted on a self-removing combine harvester.

5 Threshing part 11 1st sorting part 12 2nd sorting part 13 Handling machine 13a Squeezing part of handling body 13b Handling part of handling body 14 Receiving net 14a Front end of receiving net 21 1st Glenpan 21a Front end of 1st Glenpan 21b Rear end of 1st Glenpan 22 2nd Glenpan 22a Rear end of 2nd Glenpan 22b Front and rear center of 2nd Glenpan 24 Straw rack 24a Rear end of Straw rack 26 Glen sheave 26b Rear end of Glen sheave 31 1st chaff sheave 32 2nd chaf sheave 41 1st item collection part 42 2nd item collection part 47 wall insert 48 wall part 48a upper part of wall part 53 Conveyor screw 54 front partition part 54a top part of front partition part 55 rear partition part 55a top of rear partition part 65 Wall insert case 65f Front end of wall insert case B1 Tilt angle B2 Tilt angle L1 Vertical straight line L2 Vertical straight line L3 Vertical straight line L4 Vertical straight line P1 Rotating shaft core P6 Screw shaft core

Claims (11)

A threshing department that threshes the harvested crops,
A first sorting unit, which is arranged below the threshing unit and is reciprocally driven along the front-rear direction to sort the processed material from the threshing unit.
It is provided with a second sorting unit which is arranged below the first sorting unit and is reciprocally driven along the front-rear direction to sort the processed material from the first sorting unit.
A second Glen pan for transporting the processed material to the rear side is provided at the front end portion of the second sorting portion.
A threshing device in which a wall portion formed higher than the second Glenpan is provided at the front end portion of the second Glenpan so as to prevent the processed material from spilling from the second Glenpan to the front side. The upper part of the wall portion is formed so as to face backward and diagonally upward.
A wall insert that supplies a sorting wind to the first sorting section and the second sorting section is provided.
The grain removal device according to claim 1, wherein a part of the sorting wind of the Karamin flows rearward between the first sorting portion and the wall portion. The first item collection unit is provided on the lower side with respect to the second sorting unit.
The second item collection unit is provided on the lower side of the second sorting unit and on the rear side of the first item collection unit.
A wall insert that supplies sorting wind to the first sorting section and the second sorting section is provided on the front side with respect to the first item collecting section.
The first Glenpan that transports the processed material to the rear side, the first chaff sheave that sorts the processed material while transporting it to the rear side and drops it to the lower side, and the first chaff sheave that sorts the processed material while transporting it to the rear side and drops it to the lower side. Straw racks are provided in this order from the front to the rear of the first sorting unit.
The second grain pan, the grain sheave that drops the sorted processed material to the first product collecting unit, and the second chaf sheave that sorts the processed material while transporting it to the rear side and drops it to the second product collecting unit are the same. The threshing device according to claim 1 or 2, which is provided in order from the front portion to the rear portion of the second sorting unit. A chevron-shaped front partition that protrudes upward when viewed from the side is provided between the first collection section and the wall insert.
The Glen Seeb is provided so as to extend rearward from the rear end of the Second Glen Pan.
With the second sorting unit located at the front end of the reciprocating drive, the rear end of the second Glenpan is located rearward of the vertical line passing through the top of the front partition in a side view. The threshing device according to claim 3. The first chaff sheave is provided so as to extend rearward from the rear end portion of the first Glenpan.
In a plan view, the first glen pan, the first chaff sheave, and the second glen pan are arranged so that the rear portion of the first glen pan and the front portion of the first chaf sheave overlap with the second glen pan. The threshing device according to claim 3 or 4. The threshing device according to claim 5, wherein the rear end portion of the first Glen pan is located above the front-rear central portion of the second Glen pan. A transport screw that transports the processed material by being rotationally driven around the screw shaft core along the left-right direction is provided in the second product collection unit.
A chevron-shaped rear partition that protrudes upward when viewed from the side is provided between the first collection unit and the second collection unit.
Any one of claims 3 to 6 in which the rear end portion of the Glen Seeb is located between the vertical line passing through the top of the rear partition portion and the vertical straight line passing through the screw shaft core in a side view. The threshing device described in the section. The threshing device according to claim 7, wherein the second chaf sheave is provided so as to extend rearward from a vertical line passing through the rear end portion of the transport screw in a side view. The threshing apparatus according to any one of claims 3 to 8, wherein the straw rack is extended rearward until the rear end portion of the straw rack is located above the rear portion of the second chaff sheave. .. The first Glen pan and the first chaff sheave are provided in an inclined state of rising backward.
The threshing device according to any one of claims 3 to 9, wherein the backward tilt angle of the first chaff sheave is set to be larger than the backward tilt angle of the first Glenpan. The threshing section has a scraping section for scraping the harvested crops backward and a handling section continuously provided at the rear portion of the scraping section to handle the crops, along the front-rear direction. A handling cylinder that is rotationally driven around the center of the rotating shaft and a receiving net that is arranged on the lower side of the handling processing unit are provided.
The scraping portion is provided on the front portion of the handling cylinder so that the scraping portion protrudes forward from the front end portion of the wall insert case that covers the outside of the wall insert.
The front end of the net and the front end of the wall insert case are arranged at the same position in the front-rear direction.
The first grain pan is extended to the front side through between the receiving net and the wall insert case until the front end portion of the first grain pan is located at the same position in the front-rear direction as the front end portion of the wall insert case. The threshing device according to any one of claims 3 to 10.

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