JP4956576B2 - Combine - Google Patents

Description

  In the present invention, the sorting unit located below the handling room of the threshing device is provided with a sheave case for sorting the threshing processed material dropped from the receiving net so as to be swingable back and forth, and the number 1 subjected to the sorting process below the sheave case. The present invention relates to a combine provided with a first recovery unit for recovering an object and a second recovery unit for recovering a second item behind the first recovery unit.

Conventionally, a sheave case 29 for sorting the threshing product that has fallen from the receiving net 17 is provided in the sorting unit located below the handling chamber 14 of the threshing device 5 so as to be swingable back and forth, and the sorting process is performed below the sheave case 29. Further, there is known a combine provided with a first collecting unit 21 for collecting the first item and a second collecting unit 22 for collecting the second item behind the first collecting unit 21 (see Patent Document 1). .
In the one described in Patent Document 1, a chaff sheave 31 is provided above the first collection portion with respect to the sheave case 29, and the rear end portion of the sheave case 29 from above the second collection portion is behind the chaff sheave 31. A Strollac 32 was provided.

JP 2008-167687 A

  When a Strollac is installed just before the dust outlet, light dust is discharged out of the machine with the sorting wind, and moss is sequentially discharged out of the machine while being placed on the Strollac. The 2nd grain mixed with moss falls from Strollac and is collected as the 2nd thing. However, when harvesting crops such as rapeseed whose grains are small and whose pods and stems and leaves are crushed, if the trolley rack is used, many processing wastes such as pods and stems will be recovered as the second crop and the threshing efficiency will be reduced. .

  The present invention is expected to improve the efficiency of threshing as a whole by improving the recovery efficiency of the second crop by appropriately collecting the second crop according to the type of crop to be harvested and the growth state of the crop. It is to provide a combine that can.

[Configuration of the first invention]
The structure of 1st invention provides the sheave case which sorts the threshing processed material which fell from the receiving net in the selection part located below the handling room of a threshing device so that rocking | fluctuation back and forth is possible, and a selection process is carried out under the sheave case. In a combine provided with a first recovery part for recovering the first thing and a second recovery part for recovering the second thing behind the first recovery part, above the second recovery part in the sheave case To a position close to the rear end of the sheave case, a plurality of sorting plates are arranged in parallel at the front and rear at a predetermined pitch, and the plurality of sorting plates are swingably supported around a horizontal axis. is a long support frame back and forth across the sorting plate is connected, the angle of the front Kifuku number of the sorting plate in conjunction with the back-and-forth movement of the support frame is changed, securing the support frame relative to the sheave casing Configured so that the opening is set by That the provided chaff sieve, the rear one of the sorting plate and directly to Setto be coordinated with the operation member for opening setting of the plurality of sorting plate, the horizontal direction of the machine body transverse outer side plate of the sieve casing of the outer post section, with provided in the vicinity of the dust-exhaust port located at the rear end of the front Symbol threshing apparatus, the treated product the operation tool is defeated leakage from the chaff sieve at the rear end of the sieve casing 2 No. recovery unit The bottom plate is extended downward from the bottom plate in a downwardly inclined posture that guides the flow downward, and the opening degree of the chaff sheave can be changed by operating the operating tool from the dust outlet side.

[Operation of the first invention]
According to the first invention, since the chaff sheave whose opening degree can be changed is provided from the upper part of the second collection part to the rear end part of the sheave case, the threshed threshed product is treated waste such as stems and sheaths. When threshing rapeseed and the like that are likely to be mixed together, the sorting process can be suitably performed as compared with Strollac.

In addition, by changing the opening according to the sorting amount of processed products, it is possible to perform good sorting suitable for the type of crop to be harvested and the amount of processing, and the operation for setting the opening connected to the chaff sheave A tool is provided near the dust outlet located at the rear end of the threshing device, and the opening degree of the chaff sheave can be changed by operating the operating tool from the dust outlet side. It can be done easily from the dust mouth side.
[Effect of the first invention]
According to the first invention, the sorting efficiency of processed products can be improved, and it has been possible to easily match sorting suitable for different processing amounts depending on the type of crop and the growth state of the crop.

[Configuration of the second invention]
According to a second aspect of the invention, there is provided an eccentric rotation mechanism according to the first aspect of the invention, wherein the operation tool swings the sheave case back and forth from the start end position to the end position of the entire operation area in a side view. extension of the connecting member connecting the outer rear portion of the side plate, and the upper end of the outer post portions of said side plates, so as to be positioned between, and, to the lower side than the bottom plate of the operating member in wherein the end portion is disposed so as to be positioned to protrude to the lower rear side of the front Symbol bottom plate.

[Configuration of the third invention]
Configuration of the third invention, in the configuration of the first or second invention, the operating member, as well be swung freely pivotally connected in the horizontal direction of the horizontal axis around to the front SL side plate, before It is formed so as to be connected to the one sorting plate on the rear side , in front of the portion pivotally connected to the recording side plate , and to have a rear-lowering shape from the portion pivotally connected.
[Configuration of the fourth invention]
Configuration of the fourth invention, in the configuration of the third invention, Yes by projecting the operation tool fixing plate below the lower edge of the side plate on the side of the rear end of the sieve casing, the operating member The fixing plate is provided with a plurality of positioning engaging portions corresponding to a plurality of positions within the swing operation range of the operating tool, and the extended end side of the operating tool is provided to each of the engaging portions. The operation position of the operation tool is configured to be able to be positioned at the plurality of locations by separately engaging and disengaging each other, and the extended end portion is located from the start end position to the end position of the entire operation area in a side view. It is comprised so that it may not protrude back from the said rear-end part of the said sheave case .

[Configuration of the fifth invention]
The structure of 5th invention is the structure of any one invention of 1st-4th invention, The shredding apparatus which shreds the stem part of the threshing processed material discharged | emitted from the said dust outlet behind the said threshing apparatus. And the shredding device is mounted so that the dust outlet can be opened by swinging the left and right lateral sides of the body around the longitudinal axis located on the center side in the lateral direction of the body.

[Effects of the fifth invention]
According to the fifth aspect of the present invention, the dust cutting port is opened by swinging the left and right lateral sides of the chopping device around the longitudinal axis centered on the center side in the lateral direction of the body. Therefore, when the shredding device is opened, the side of the machine body behind the threshing device opens greatly, and the operation space of the operation tool is widely opened, so that the operation tool can be easily operated.

[Configuration of the sixth invention]
According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the invention, the chaff sheave is configured to be detachable from the sheave case.

[Effects of the sixth invention]
According to the sixth invention, the maintenance of the chaff sheave can be easily performed, and the chaff sheave can be changed to another chaff sheave, or can be changed to a strollac depending on the crop to be harvested. It came to be able to be a certain combine.

It is a whole side view of a combine. It is a whole top view of a combine. It is a vertical side view of a threshing apparatus. It is a partial side view which shows the air path of the sorting wind of a Chinese cypress. It is a vertical front view of a treatment room. It is a side view of a handling cylinder. It is an expanded view which shows arrangement | positioning of the tooth handling in a treatment cylinder. It is a partially broken side view showing the fully opened state of the first chaff sheave. It is a partial longitudinal front view which shows the selection plate of the 1st chaff sheave, the operation member, and the left side wall of the threshing apparatus. It is a partially longitudinal front view which shows the left half part of the selection plate of a 1st chaff sheave. It is a partially broken side view which shows the fully closed state of a 1st chaff sheave. It is a partially broken side view which shows the maximum opening state of a 2nd chaff sheave. It is a partially longitudinal front view which shows the selection plate of a 2nd chaff sheave and the operation tool for opening setting. It is a partially longitudinal front view which shows the left half part of the selection plate of a 2nd chaff sheave. It is a partially broken side view showing the minimum opening state of the second chaff sheave. It is a fragmentary perspective view of the sorting plate which shows another embodiment.

  Based on FIG. 1, FIG. 2, the whole structure of a normal type combine is demonstrated. 1 and 2 show an overall side view and an overall plan view of the combine. As shown in FIGS. 1 and 2, an axial threshing device 3 and a crop recovery unit 4 are arranged in parallel on the left and right on the upper part of a traveling machine body 2 including a pair of left and right crawler traveling devices 1. A driving unit 5 is provided in front of the crop collection unit 4.

  At the front part of the threshing device 3, a feeder 6 for conveying the harvested crop is connected to the front end of the fulcrum X so as to be swingable up and down, and to the front end of the feeder 6 is connected a cutting unit 7 having a cutting width substantially corresponding to the horizontal width of the machine body. ing.

  The mowing unit 7 includes a clipper-type mowing device 9 provided over a pair of left and right weed frames 8 and an auger 10 installed over a pair of left and right weed frames 8. The crops harvested by the harvesting device 9 are configured to be fed laterally to the left and right central portions by the auger 10 and supplied to the feeder 6. The auger 10 is provided with a claw 12 and a screw 13 on the outer periphery of a drum-shaped auger body 11.

The feeder 6 includes a scraping conveyor 14, and is configured so that the processing target crop supplied from the feeder 6 can be conveyed along the bottom surface of the feeder 6 and supplied to the threshing apparatus 3.
There are various kinds of crops to be processed that are harvested by ordinary combine, such as rice barley, straw, straw, beans, sesame, and rapeseed. Here, the crops to be processed are used to harvest rapeseed. Hereinafter, the rapeseed intended for harvesting is referred to as grain, and it is referred to as the stem part including the stem and the sheath that has wrapped the grain, and in some cases, the sheath and stem part may be divided.

  A hydraulic cylinder 16 is disposed across the front portion of the main deck 15 and the lower portion of the feeder 6 in the traveling machine body 2, and the cutting portion 7 and the feeder 6 are moved around the fulcrum X by extending and contracting the hydraulic cylinder 16. Can swing up and down.

  Above the front part of the mowing unit 7, a scraping reel 17 for scraping and raising the planted crop backward is provided. Left and right support arms 18 that can swing up and down around a fulcrum Y are pivotally connected to the rear ends of the left and right weed frames 8, and a take-up reel 17 is attached to a front bracket of the support arm 18. It is pivotally connected via.

  A hydraulic cylinder 20 is disposed between the weeding frame 8 and the support arm 18, and the support arm 18 is swung up and down by the hydraulic cylinder 20 to change the height of the operation of the take-up reel 17. In addition, the support bracket 19 can be slid along the support arm 18 to adjust the scraping action position back and forth.

  As shown in FIG. 3, the threshing apparatus 3 has a handling cylinder 23 that rotates around a handling cylinder shaft 22 that is installed in the handling chamber 21 formed in the upper part thereof along the conveying direction of the harvested crop to be processed. And a lower end of the threshing device 3 in the threshing processing direction, and a receiving net 24 formed in a U-shape in front view covering the lower side of the handling barrel 23 from below. A dust sending port 25 is formed behind the receiving net 23, and a sorting unit 26 is provided below the receiving net 24. In the sorting unit 26, a swing sorting mechanism 28 having a sheave case 27 is disposed immediately below the receiving net 24, and a red pepper 29 is disposed in front of and below the swing sorting mechanism 28. The first collecting part 30 is formed below the part side, the second collecting part 31 is formed below the rear side of the swing sorting mechanism 28, and the dust discharge port 32 is formed behind the swing sorting mechanism 28. A top plate 33 is provided to cover the upper side of 23 from above.

  The handling chamber 21 is partitioned and formed by a receiving net 24 covering the handling cylinder 23, a top plate 33, and the like. A supply port 34 is formed at a lower part of the front end, and the rear end of the feeder 6 is connected to the supply port 34. The whole crop to be cut and conveyed by the feeder 6 is supplied and supplied from the supply port 34 as a threshing processed product.

  The handling cylinder 23 is motive power from an engine (not shown) transmitted through a carp 29 and the like so that the handling cylinder shaft 22 is rotatably installed over the front wall 35 and the rear wall 36 of the threshing device 3. By being driven to rotate clockwise when viewed from the front with the barrel 22 as a fulcrum, the threshing process is performed on the processing target crop supplied to the handling chamber 21 to promote the threshing of the grain while threshing. The processed product is conveyed toward the rear, which is the lower side in the threshing processing direction.

  The receiving net 24 is a concave receiving net formed in a lattice shape, receives the stem portion of the processing target crop supplied to the handling chamber 21, and obtains a single grain or a sheathed grain obtained by the threshing process, Alternatively, the processing waste of the pods and stems generated by the threshing process is caused to leak toward the lower swing sorting mechanism 28, while the stem is prevented from leaking to the swing sorting mechanism 28. The mesh of the receiving net 24 is smaller than that of rice. When the rice is threshed, it is replaced with a receiving net for rice.

  The handling cylinder 23 includes a frustoconical scoring portion 37 provided at a front end portion thereof, and a handling processing portion 38 connected to a rear end of the scrambling portion 37. On the outer peripheral surface of the scraping unit 37, two spiral teeth 39 are integrated to scrape and convey the harvested cereal supplied from the supply port 34 toward the rear handling unit 38 when the handling cylinder 23 rotates. Equipped.

  The handling section 38 includes a front support member 40 made of a plate connected to the front portion of the handling cylinder shaft 22, an intermediate support member 41 made of an annular hollow plate disposed at the front and rear intermediate parts of the handling cylinder 23, A rear support member 42 made of a plate connected to the rear end portion of the handle barrel shaft 22 is provided, and these support members 40 to 42 are arranged in the circumferential direction of the handle barrel 23 in a front-to-back orientation along the handle barrel shaft 22. Six handling cylinder frames 43 made of round pipe steel or the like supported so as to be arranged at regular intervals, and each handling cylinder frame 43 from the handling cylinder frame 43 toward the outer side in the radial direction of the handling cylinder 23. It is formed in a bowl shape by a plurality of teeth 44 and the like that are provided so as to protrude and are arranged at predetermined intervals in the front-rear direction.

  In other words, the handling cylinder 23 is arranged and arranged such that a plurality of handling teeth 44 projecting outward from the handling cylinder 23 are arranged at intervals in the circumferential direction and the front-rear direction of the handling processing unit 38. The internal space S of 38 communicates with the handling chamber 21 and allows the threshing processed material to enter the internal space S.

  As shown in FIGS. 5 and 6, the outer shape of each of the support members 40 to 42 is a circle centering on the handling cylinder shaft 22, and the handling cylinder frame 43 is positioned at an equal distance from the handling cylinder shaft 22 on the outer peripheral side. Are bolted. Six handling cylinder frames 43 are arranged on the outer peripheral side of each of the support members 40 to 42 so as to be arranged at regular intervals in the circumferential direction so that the cylinder diameter of the handling cylinder 23 is increased. As a result, it is possible to prevent the stem portion of the threshing processed crop from being wrapped around the handling cylinder 23.

  The tooth handling 44 is attached in a state where the tip side is inclined with a delay angle delayed in the rotation direction with respect to the normal line. As a result, the stem caught on the tooth-handling 44 is easily detached from the tooth-handling 44 as it rotates.

  On the six handling cylinder frames 43 in the circumferential direction, the handle teeth 44 are arranged at a constant pitch P in the front and rear directions from positions spaced apart by a distance L from the front support member 40 and the rear support member 42 alternately in the circumferential direction. , And the last (alternately front end or rear end) teeth 44 are attached at 1/2 pitch P.

  That is, in FIG. 6, the uppermost handling frame 43 and a total of three handling cylinder frames 43 (an odd number of handling frames 43 counted from the uppermost handling frame 43) are moved forward. The teeth 44 are arranged so as to draw the same rotation trajectory at a constant pitch P from the position separated by the distance L from the part support member 40 toward the rear, and the last teeth 44 are arranged at a half pitch P. Has been. Further, in FIG. 6, the lowermost handling cylinder 43 and the three handling cylinder frames 43 (one even numbered handling frame 43 counted from the uppermost handling cylinder frame 43) jump to the rearmost handling frame 43. The teeth 44 are arranged so as to draw the same rotation locus at a constant pitch P from the position separated from the support member 42 toward the front, and the foremost teeth 44 are arranged at a half pitch P. ing. Then, the distance in the front-rear direction between the odd-numbered rear end teeth 44 of the barrel frame 43 and the even-number rear teeth 44 group, and the even-number front teeth of the barrel frame 43. The distance in the front-rear direction between the 44th group (rotation trajectory) and the even-numbered front end tooth handling 44 group (rotation trajectory) is a quarter pitch P apart.

  That is, as shown in FIG. 6 and FIG. 7, the front and rear direction of the tooth handling 44 group disposed on the odd-numbered handling cylinder frame 43 and the tooth handling 44 group disposed on the even-numbering handling cylinder frame 43 is shown. The pitch is ¼ pitch P, ½ pitch P, ¼ pitch P at the front end and the rear end, and ¼ pitch P and ¾ pitch between the other front and rear. P is arranged at a pitch that is alternately repeated.

  As a result, a plurality of teeth 44 in the circumferential direction (groups of teeth 44 of the three odd-numbered and even-numbered three barrels 43) are arranged to draw the same rotation locus, and a plurality of the same rotation locus is drawn. There are two groups of tooth management 44 consisting of teeth 44 in the front-rear direction, and one set (for example, an odd number in the circumferential direction) of teeth 44 and a group adjacent to the front side (for example, a circumferential group) The pitch between the tooth handling 44 group of the even-numbered direction) and the pitch between the one set (odd-numbered) tooth handling 44 group and the group (even-numbered) tooth handling 44 group adjacent to the rear side is 4 The pitches in the front-rear direction of a plurality of sets of tooth-treating teeth 44 are set so as to be different from each other by a quarter pitch P and a quarter pitch P.

  Eventually, in the front-rear direction of the barrel 23, there are two sets of teeth 44 adjacent to each other at a quarter pitch P for every three-quarter pitch P, and the threshing product is threshing. When it is done, it is handled by two sets of tooth handling 44 groups that are close to each other at a quarter pitch P, and the threshing processed product moves to the lower side in the barrel conveying direction while being struck by the receiving net. Threshing products pass through the space separated by a distance of 3 pitches per minute, and the threshing products are repeatedly threshed by being repeatedly handled by the lower teeth handling group 44 while changing the posture by randomly rolling through the space. It is processed.

That is, since the two sets of tooth handling 44 groups close to each other, the threshing processed product is generally out of the two teeth handling group 44 on the front side (upper side in the conveying direction) among the two sets of tooth handling 44 groups close to each other. Although the tooth-handling 44 is hit (being hit), the threshing processed product is a group of two adjacent tooth-handling 44 groups.
(1) It is hit by one of the front and rear teeth 44 groups.
(2) The teeth are continuously beaten by the teeth 44 of the front teeth 44 group and the teeth 44 of the rear teeth 44 group. (3) The two front and rear teeth 44 in the front and rear teeth 44 are simultaneously hit and hit.
It will be.
In the case of (1), the number of times that the threshing processed product is struck by the handle teeth 44 while passing through the entire length of the handle cylinder is reduced (halved), so that the impact is reduced.
In the case of (2), since the front and rear teeth 44 are continuously hit, the speed reduction of the threshing product when the subsequent teeth 44 are hit is small. Since the speed difference with the rotational speed is small, the impact when the threshing processed product is hit by the rear teeth 44 is reduced.
In the case of (3), since one threshing product hits the front and rear two teeth 44 simultaneously, the impact is alleviated.
Therefore, in any case, the impact of the threshing product as a whole is reduced. That is, threshing processing is performed by two groups of tooth handling 44 close to the front and rear, functioning as a pair to alleviate the impact on the threshing product as a whole.

That is, the processed threshing product is generally hit by the handling teeth 44 on the upper side in the transfer direction by the two groups of front and rear teeth 44 having a short pitch, but when the phenomenon (1) occurs, After passing through the two pairs of lower teeth 44 that form a pair, the next two groups of adjacent teeth 44 are threshed, and the number of times the teeth are impacted is reduced.
After the threshing product is struck by the front side (upper side in the transfer direction) of the pair of adjacent teeth 44 in a pair, the pair of rear teeth 44 in the rear is paired. When the teeth are hit by the teeth 44 (in the case of (2) above), after being hit by the front teeth 44, the teeth are immediately hit again. In this case, since the distance (pitch) between the two pairs of front and rear teeth 44 that form a pair is short and the two are close to each other, the threshing product is hit by the front and rear teeth 44 in a continuous manner in a short time. It will be. The threshing processed product hit by the tooth handling 44 instantaneously rotates at substantially the same speed as the tooth handling. When the threshing product is separated from the tooth-handling, the speed is reduced. However, when the hammering is continuously performed by the front and rear toothing 44 adjacent to each other, the speed reduction when receiving the hammering by the paired tooth-handling 44 is small. The impact force when the second tooth 44 is hit again is small, and when the pitch of the two pairs of teeth 44 is shortened as a whole, the impact force becomes smaller than the sum of the two pairs of impact forces having a wide pitch.
When the threshing product hits the front and rear teeth 44 of the two pairs of teeth 44 having a short pitch that form a pair (in the case of (3) above), the rotation of one of the front and rear teeth 44 Since the speed and the rotational speed of the threshing product hit at the same speed, that is, it can be considered that one hits at a speed difference of zero, when the pair of teeth 44 are hit almost at the same time, the impact force is almost Cut in half. Also, the impact force is halved when the two pairs of front and rear teeth handling a pair are hit completely simultaneously.
As mentioned above, since the impact force with respect to the threshing processed material by the tooth handling 44 is relieved, generation | occurrence | production of the sap of a threshing processed material can be suppressed, and the threshing load is also reduced generally.

  The rapeseed stalk contains a lot of moisture, and if it is struck with teeth too many times at a high speed, a lot of sap comes out. When the barrel is sticky with sap, it increases the threshing load, and the sorting process cannot be performed well, resulting in a reduction in quality. However, in the present embodiment, the two sets of tooth handling 44 having a short pitch can reliably handle the threshing processed product, but the number of times of handling by the tooth handling 44 as a whole is reduced, or Since the striking force as a whole is relieved, the occurrence of stalk juice is less likely to occur, and the teeth 44 of the adjacent groups of teeth 44 are arranged in a staggered manner in which the positions are shifted in the circumferential direction. As a result, the threshing product is reliably performed with any tooth of the front and rear tooth groups that form a pair with different rotational phases, and the front and rear tooth groups are treated while the impact force is reduced. The action of continuously threshing is also likely to occur, and while the threshing load can be reduced, a good threshing process can be performed, the sorting process can be performed well, and high quality grains can be recovered.

  As shown in FIG. 3, threshing wastes such as large stems and sheaths discharged from the dust feed port 25 at the rear end of the handling chamber 21 and threshing wastes discharged from the rear end of the sorting unit 26 are discharged. The chopper 47 as a shredding device provided with a rotary blade 45 and a fixed blade 46 disposed at the rear of the dust port 32 is configured to be shredded.

As shown in FIG. 3, the sheave case 27 is moved forward and backward through left and right rollers 50 to a guide rail 49 in a forward-downward inclined posture fixed to the inner surfaces of the left and right side walls 48 in the sorting portion 26. The rear portion of the sheave case 27 is detachably connected to an eccentric rotation mechanism 51 mounted horizontally across the left and right side walls 48 through a connecting member 51a . When the eccentric rotation mechanism 51 is eccentrically rotated, the front portion of the sheave case 27 is linearly reciprocated in the diagonally forward and backward directions, and the rear portion of the sheave case 27 is circularly rotated and operated vertically. It is comprised so that the back feed function and sieve selection function of the threshing processed material which were mounted may be exhibited.

  From the rear end of the guide rail 49 to the rear part of the threshing device, an insertion / extraction rail (not shown) for placing and rolling the roller 50 is continuously provided. The roller 50 of the sheave case 27 whose connection has been released is guided by the insertion / extraction rail and guided rearward, and the sheave case 27 can be extracted rearward from the dust outlet 32.

  The Karan 29 is driven to rotate by the power from the engine 2 transmitted through a belt-type transmission mechanism (not shown) to generate a sorting wind, and the sorting wind has three air paths R1 to R1. By passing through R3 and being supplied to the sorting processed material leaked from the receiving network 24 or the sorting processed material sorted by the swing sorting mechanism 28, the sorting processing product is subjected to wind sorting processing. Then, swarf and the like having a small specific gravity are blown out from the sorted processed material and conveyed toward the dust outlet 32 on the lower side in the threshing processing direction.

  As shown in FIGS. 3 and 4, of the selected air from the tang 29, the selected air passing through the upper air passage R1 passes through the air passage R4 formed in the sheave case 27 and is intermediately supported by the handling cylinder 23. It flows toward the member 41. Thereby, the threshing processed product that is prevented from flowing toward the lower side of the threshing processing direction by the intermediate support member 41 can be wind-winded toward the periphery of the handling cylinder 23, and as a result, the threshing processed product is transferred to the intermediate support member 41. It is possible to avoid the possibility that the threshing process will be hindered by depositing at a location immediately before.

  The positional relationship between the rear end edge 29b of the Kara case 29a forming the air path R1 and the opening front edge 60b of the Glen pan 60 forming the opening 60a of the air path R4 is swung by the operation of the eccentric rotation mechanism 51. The entire opening 60a of the air passage R4 formed in the gren pan 60 is such that the sheave case 27 to be moved is positioned in the forefront position so that the opening front edge 60b of the gren pan 60 is located behind the rear end edge 29b of the tang case 29a. Even if the grain that has fallen on the grain pan 60 bounces and falls from the opening 60a by being configured so that it is always located behind the rear edge 29b of the Kara case 29a, Without falling into the dead space, the grain can be reliably recovered by being moved to the first recovery unit 30 by the sorting wind using Kara.

  The first item collected by the first collecting unit 30 is conveyed by the lateral feed screw 53 and carried out of the apparatus, and then sent to the grain collecting unit 4 by the lifting device 54 comprising a screw conveyor and collected. The second product is transported by the lateral feed screw 55 and carried out of the apparatus, and then transported by the screw type reducing device 56 and supplied to the front portion of the sheave case 27 for re-sorting. ing.

  At the front part of the sheave case 27 is a corrugated front grain pan 57 for swinging and transferring the threshing product and the reduced second product leaked from the front part of the receiving net 24, and the end of the front grain pan 57. First, the sieved wire 58, the treated product reaching the rear end of the sieve line 58, and the threshing treated product leaked from the front and rear intermediate portions of the receiving net 24 are screened while swinging and moving backward. Drops from the chaff sheave 59, the sieve line 58, and the sorting process product that has passed through the first chaff sheave 59, and the sorting process product that reaches the end of the first chaff sheave 59 and the receiving net 24. A second chaff sheave 62 and the like are provided to feed the processed waste remaining after sieving and sorting to the dust discharge port 32 while swinging and transferring the threshing processed product thus moved backward.

  The front gren pan 57 performs so-called specific gravity difference sorting in which the processed product is divided into upper and lower layers according to the specific gravity difference during the rocking transfer. A processed product having a small specific gravity is divided into upper layers and sent to the next sieving line 58.

  When the processed product divided into the upper and lower two layers by the front grain pan 57 moves on the sieve line 58, the lower rapeseed (grain) is immediately dropped and supplied to the grain pan 60 and the grain sieve 61 and falls from the sieve line 58. The upper processing waste that has not been processed and the grains mixed in the processing waste are delivered to the first chaff sheave 59.

  The structure for adjusting the opening degree of the first chaff sheave 59 is configured as follows. As shown in FIG. 8, the first chaff sheave 59 is provided substantially horizontally in the front-rear direction, and is configured by arranging a large number of sorting plates 63 obtained by joining two thin plates in parallel at the front and rear at a constant pitch. Yes. The sorting plate 63 includes a sorting plate 63A at the center in the front-rear direction connected to the operation member 68, and other sorting plates 63B at the front and rear. As shown in FIG. 8 and FIG. 9, the center sorting plate 63A is fixed to the plate 63b formed with a bent piece 63a that also serves as a reinforcement for receiving the sorting processed product flowing down to the lower end, and the upper end of the plate 63b. The fulcrum shaft 67 made of a round bar, the operation shaft 65 made of lower pivot pins arranged on the left and right of the lower end portion of the plate material 63b, and the holding for holding the fulcrum shaft 67 and the operation shaft 65 arranged on the left and right of the plate material 63b. And a plate 63c. As shown in FIG. 8 and FIG. 10, the front and rear sorting plates 63B are provided on the left and right sides of the plate material 63b formed with a bent piece 63a that also serves as a reinforcement for receiving the sorting processed product flowing down to the lower end, and on the left and right of the upper end of the plate material 63b. The fulcrum shaft 67a composed of the upper pivot pin disposed, the operation shaft 65a composed of the lower pivot pin disposed on the left and right of the lower end of the plate member 63b, and the operation shaft 65a composed of the fulcrum shaft 67a and the lower pivot pin are held. An insulating plate 63b and a reinforcing plate 63d for polymerization are provided.

  The sorting plates 63A and 63B are connected to the left and right chaff sheave mounting frames 89 attached to the left and right side plates 27a of the sheave case 27 so as to be swingable back and forth around the horizontal axis a of the fulcrum shafts 67 and 67a. The operation shafts 65 and 65a composed of lower pivot pins at the lower left and right ends of the sorting plates 63A and 63B are connected to a pair of left and right support frames 64 that are arranged substantially horizontally in the front and rear, and interlock with the back and forth movement of the support frame 64. Thus, the angles of the plurality of sorting plates 63A and 63B are changed. That is, when the support frame 64 moves forward, the angles of the respective sorting plates 63A and 63B become loose and the opening degree of the first chaff sheave 59 becomes smaller. Conversely, when the support frame 64 moves rearward, the respective sorting plates 63A and 63B. As the angle becomes tight, the opening of the first chaff sheave 59 increases.

  An operating shaft 65 comprising a lower pivot pin that connects the lower end of the central sorting plate 63A and the left support frame 64 passes through an arc-shaped slot 66 formed in the left plate 27a of the sheave case 27. The sheave case 27 protrudes to the left outer side of the left side plate 27a. A fulcrum shaft 67 pivotally supported on the left chaff sheave mounting frame 89 at the upper end of the central sorting plate 63A passes through a hole formed in the left plate 27a of the sheave case 27 and is left of the left plate 27a of the sheave case 27. It protrudes outward. A male screw is formed at the left end portion of the fulcrum shaft 67, and an operation member 68 is externally fitted to the fulcrum shaft 67 outside the left side plate 27 a of the sheave case 27. One end of an operation shaft 65 that is rotatably held by the sorting plate 63A is fixed to an intermediate portion of the operation member 68. By swinging the operating member 68, the support frame 64 moves back and forth, whereby the opening degree of the first chaff sheave 59 is changed.

  The fulcrum shafts 67 and 67a at the upper end portions of the plurality of sorting plates 63 are pivotally attached to the left and right chaff sheave mounting frames 89, respectively, and the operation shaft 65 at the lower end portion of the sorting plate 63 is connected to the support frame 64 to be connected to the first chaff sheave 59. Are fixed to the left and right side plates 27a of the sheave case 27 with bolts, so that the fulcrum shafts 67 and 67a are attached to the side plates 27a of the sheave case 27 via the chaff sheave mounting frame 89. It is.

  The operation member 68 fixes a nut 69a to an inner portion of a circular hole 69 formed in a plurality of (five) operation positions on the left side plate 27a of the sheave case 27, and one of them is a positioning fixing member. The bolt 70 is screwed and fixed so that the position can be maintained. The more the control member 68 is swung forward, the smaller the opening of the first chaff sheave 59 is operated. Conversely, as the operating member 68 is swung rearward, the opening of the first chaff sheave 59 is activated.

  The operation member 68 is formed in a wide rectangular shape, and the arc-shaped long hole 66 penetrating the operation shaft 65 fitted to the lower left end portion of the center sorting plate 63 is provided in the attachment range of the entire range of the operation member 68. In this state, that is, even if the operation member 68 is fixed at any of the five positions, the whole is closed by the plate surface of the operation member 68. That is, the operation member 68 also serves as a cover member for the long hole 66.

  As shown in FIGS. 1 and 8 to 10, an opening 71 is formed in the left side wall 48 of the selection unit 26 at a position corresponding to the outer side of the operation member 68, and the opening 71 is detachable. It is closed with an opening / closing lid 72. When the opening degree of the first chaff sheave 59 is changed, the opening / closing lid 72 is removed, and the setting angle of the first chaff sheave 59 is changed by changing the position of the hole 69 to which the operation member 68 is rocked and fixed by bolting. To change.

The second chaff sheave 62 is configured as follows.
A second chaff sheave 62 is provided from the upper side of the second collection portion 31 of the sheave case 27 to the rear end of the sheave case 27 so that the rear portion is higher than the front portion. The second chaff sheave 62 has a large number of sorting plates 73 arranged in parallel at a predetermined pitch.
Sorting plate 73 includes a sorting plate 73A which is connected to the operating device 75 for opening level setting, and a other of the front and rear of the sorting plate 73B. As shown in FIGS. 12 and 13, the sorting plate 73A is composed of a plate material 73b formed with a bent piece 73a that also serves as a reinforcement for receiving the sorting processed product flowing down to the lower end portion, and a round plate fixed to the upper end portion of the plate material 73b. A fulcrum shaft 80 made of a rod, an operation shaft 81 made of lower pivot pins arranged on the left and right of the lower end of the plate 73b, and a holding plate 73c arranged on the left and right of the plate 73b and holding the fulcrum shaft 80 and the operation shaft 81. And. As shown in FIGS. 12 and 14, the front and rear sorting plates 73B are formed on the left and right sides of the plate material 73b formed with a bent piece 73a that also serves as a reinforcement for receiving the sorting processed product flowing down to the lower end portion, and on the left and right sides of the upper end portion of the plate material 73b. The fulcrum shaft 80a composed of the upper pivot pin disposed, the operation shaft 81a composed of the lower pivot pin disposed on the left and right of the lower end of the plate member 73b, and the operation shaft 81a composed of the fulcrum shaft 80a and the lower pivot pin are held. And a reinforcing plate 73d to be superposed.

The sorting plates 73A and 73B are connected to the left and right upper frames 86 attached to the left and right side plates 27a of the sheave case 27 so as to be swingable back and forth around the horizontal axis b of the fulcrum shafts 80 and 80a. The operation shafts 81 and 81a composed of lower pivot pins at the left and right lower end portions of the plates 73A and 73B are connected to a pair of left and right support frames 74 arranged in a long and rearward tilt, and interlocked with the back and forth movement of the support frame 74. Thus, the angles of the plurality of sorting plates 73A and 73B are changed. That is, when the support frame 74 moves forward, the angles of the sorting plates 73A and 73B become loose and the opening of the second chaff sheave 62 becomes small (see FIG. 15) . Conversely, when the support frame 74 moves backward, The angle of the sorting plates 73A and 73B becomes tight, and the opening degree of the second chaff sheave 62 increases (see FIG. 12) .

  An operating shaft 81 formed of a lower pivot pin that connects the lower end of the sorting plate 73A and the support frame 74 on the left side of the machine body passes through an arc-shaped elongated hole 82 formed in the left side plate 27a of the sheave case 27, and the sheave. The case 27 protrudes to the left outer side of the left side plate 27a. A fulcrum shaft 80 pivotally supported on the left upper frame 86 at the upper end of the sorting plate 73A passes through a hole formed in the left plate 27a of the sheave case 27 and protrudes to the left outer side of the left plate 27a of the sheave case 27. Has been. A male screw is formed at the left end of the fulcrum shaft 80, and an operating tool 75 for setting the opening degree is externally fitted to the fulcrum shaft 80 outside the left side plate 27a of the sheave case 27. One end of an operation shaft 81 that is rotatably held by the sorting plate 73A is fixed to an intermediate portion of the operation tool 75. By swinging the operating tool 75, the support frame 74 moves back and forth, whereby the opening degree of the second chaff sheave 62 is changed. The opening degree is set by fixing the support frame 74 to the sheave case 27. This opening degree is set by swinging the opening setting operation tool 75 connected to the second chaff sheave 62 and fixing it to a predetermined position.

  The fulcrum shafts 80 and 80a at the upper ends of the plurality of sorting plates 73A and 73B are pivotally attached to the left and right upper frames 86, respectively, and the operation shafts 81 and 81a including the lower pivot pins at the lower ends of the sorting plates 73A and 73B are The second chaff sheave 62 is unitized by being connected to the support frame 74, the left and right upper frames 86 are connected to the left and right side plates 27a of the sheave case 27 by bolts 87, and the fulcrum shafts 67 and 67a are connected to the sheave case via the upper frame 86. 27 is detachably attached to the side plate 27a.

  At the lower ends of the left and right side plates 27a at the rear of the sheave case 27, a bottom plate 76 is provided for allowing the second item selected by the second chaff sheave 62 to flow down to the second collecting portion. An operation tool fixing plate 77 having an L-shaped cross section along the side plate 27 a is fixed to the bottom plate 76 with bolts 78 below the rear portion of the left side plate 27 a of the sheave case 27. The operation tool fixing plate 77 is provided with three pins 79 as engagement portions for fixing the opening setting operation tool 75 at a pitch of 15 degrees. An engaging hole 83 for engaging with the pin 79 and positioning and fixing the operating tool 75 is formed at the free end of the operating tool 75. As shown by a two-dot chain line in FIG. 13, the operation tool 75 is bent so as to be engaged with and disengaged from the pin 79 so that the position of the operation tool 75 can be changed.

  A fulcrum shaft 80 made of a round bar fixed to the upper end of the central sorting plate 73 of the sorting plates 73 arranged side by side in front and rear extends through the left side plate 27a of the sheave case 27 to the outside, and The operating tool 75 for setting the opening is fixed to the fulcrum shaft 80 that penetrates the side plate 27a, and the free end side of the operating tool 75 is extended obliquely downward toward the dust outlet 32 located at the rear end of the threshing device 3. It is out. An operation shaft 81 composed of a lower pivot pin planted at the lower end of the sorting plate 73 is connected to an intermediate portion of the operation tool 75, and a long hole through which the operation shaft 81 can swing is formed in the side plate 27a of the sheave case 27. 82 is formed. The operation tool 75 is located on the left outer wall side of the threshing device 3 and near the dust outlet 32 that can be reached from the dust outlet 32. The operation tool 75 is operated from the rear left side of the dust outlet 32 of the threshing device 3.

  The upper end of each sorting plate 73 of the second chaff sheave 62 is pivotally attached to an upper frame 86. The upper frame 86 is connected to the left and right side plates 27a of the sheave case 27 with a plurality of bolts 87 as shown in FIGS. It is installed in.

  The chopper 47 is attached so that the dust outlet 32 can be opened by swinging the left and right lateral sides of the body around the vertical axis Q of the vertical axis provided between the rear wall 36 of the threshing device 3. 47 is closed and fixed with a fixing bracket (not shown).

The opening degree of the second chaff sheave 62 can be changed by removing the fixing fitting of the chopper 47, opening the chopper 47 around the vertical axis Q and opening the dust outlet 32, and the operator can operate from the dust outlet 32. The tool 75 is operated to change the engagement with the pin 79.
When removing the second chaff sheave 62, the chopper 47 can be opened widely, the eccentric rotation mechanism 51 can be disconnected, the sheave case 27 can be pulled out rearward, and then the bolt 87 can be removed. Then, by changing to chaff sheaves or strollers with different scales, it is possible to cope with the harvesting of different types of crops.

  Note that the fulcrum shafts 67 and 80 and the operation shafts 65 and 81 at the upper ends of the plurality of sorting plates 73 of the first chaff sheave 59 and the second chaff sheave 62 are respectively connected to the left and right chaff sheave mounting frames 89 and the support frames 64 and the upper frame 86. And the first chaff sheave 59 and the second chaff sheave 62 as a unit. The left and right chaff sheave mounting frames 89 and the upper frame 86 are bolted to the left and right side plates 27a of the sheave case 27 by bolts. 80 is detachably attached to the side plate 27a of the sheave case 27 via a chaff sheave attachment frame 89 and an upper frame 86.

[Another embodiment]
(1) In the above embodiment, the lower end is swung around the horizontal axes a and b of the upper ends of the sorting plates 63 and 73 of the first chaff sheave 59 and the second chaff sheave 62. The cores a and b and the support frames 64 and 74 are turned upside down, and are supported swingably around the horizontal axis a and b at the lower end of the plurality of sorting plates 63 and 73. The upper ends of the first and second chaff sheaves 59 and 62 are connected to the support frames 64 and 74 that are long in the front and rear, and the angles of the plurality of sorting plates 63 and 73 are changed in conjunction with the back and forth movement of the support frames 64 and 74. You may comprise so that an opening degree may be set.

  (2) In the above-described embodiment and (1), the positioning fixing member (nut 69a or pin 79) for fixing the operating member 68 and the operating tool 75 to the side plate 27a of the sheave case 27 is the sorting plate 73. It may be provided on the upper side.

  (3) In the above embodiment, the fulcrum shaft 67 and the operation shaft 65 of the first chaff sheave 59 and the fulcrum shaft 80 and the operation shaft 81 of the second chaff sheave 62 are connected to the upper and lower ends of the sorting plates 63 and 73. Although provided on the sorting plates 63 and 73 themselves, the fulcrum shaft 67 and the operation shaft 65 of the first chaff sheave 59 or the fulcrum shaft 80 and the operation shaft 81 of the second chaff sheave 59 are provided at positions different from the sorting plates 63 and 73. It may be provided independently.

  (4) In the above embodiment, the fulcrum shafts 67 and 80 and the operation shafts 65 and 81 at the upper ends of the plurality of sorting plates 73 of the first and second chaff sheaves 59 and 62 are supported by the left and right chaff sheave mounting frames 89, respectively. The first and second chaff sheaves 62 and 62 are unitized by pivoting on the frame 64, the upper frame 86, and the support frame 74, and the left and right chaff sheave mounting frames 89 and the upper frame 86 are bolted to the left and right side plates 27a of the sheave case 27. Thus, the fulcrum shafts 67 and 80 are detachably attached to the side plate 27a of the sheave case 27 via the chaff sheave attachment frame 89 and the upper frame 86, but one or both of the fulcrum shaft 67 and the fulcrum shaft 80 are directly attached to the sheave case 27. It may be attached to the side plate 27a.

  (5) In the above embodiment, the entire sorting plates 63 and 73 are attached to the first chaff sheave 59 and the second chaff sheave 62 so that the angle can be changed, but a part of the sorting plates 63 and 73 is fixed to the sheave case 27. It may be a thing.

(6) For the sorting plates 63B and 73B of the first and second chaff sheaves 59 and 62, the two plates of the plate materials 63b and 73b and the reinforcing plates 63d and 73d are superposed to increase the strength of the sorting plates 63B and 73B. As shown in FIG. 16 , instead of these sorting plates 63B and 73B, “U” -shaped corrugated ribs 90 are formed over the entire length in the vertical direction between the sorting plates 63B and 73B. The fulcrum shafts 67a and 80a made of the upper pivot pins and the operation shafts 65a and 81a made of the lower pivot pins may be held by the holding plate 91. Bending ribs 92 for reinforcement are formed at the lower ends of the sorting plates 63B and 73B. The top surface of the ribs 92 is sorted by the ribs 92 when sorting products flow down the sorting plates 63B and 73B. Once the object is received, it is subjected to rocking wind sorting, and light pods and leaves are wind sorted. If the corrugated ribs 90 are provided at the upper and lower intermediate portions of the sorting plates 63B and 73B, the upper surface of the sorting plates 63B is subjected to swaying wind sorting, so that sorting accuracy is further improved and material is saved.

  (7) The first chaff sheave 59 and the second chaff sheave 62 may be integrated into one chaff sheave. In this case, a partly fixed sorting plate may be provided.

  The present invention can be applied not only to rapeseed but also to a combine threshing apparatus for harvesting sesame and beans.

DESCRIPTION OF SYMBOLS 3 Threshing apparatus 21 Handling room 24 Receiving net 26 Sorting part 27 Sheave case 27a Side plate 30 1st collection | recovery part 31 2nd collection | recovery part 32 Dust outlet 47 Shredding apparatus (chopper)
51 Eccentric rotation mechanism
51a Connecting member 62 chaff sheave (second chaff sheave)
73 Sorting plate 74 Support frame 75 Operating tool for opening setting 76 Bottom plate 77 Operating tool fixing plate 79 Engagement part (pin)
b Horizontal axis Q Vertical axis

Claims (6)

A sheave case for sorting the threshing product that has fallen from the receiving net is provided in the sorting part located below the handling room of the threshing device so that it can swing back and forth, and the first item that has been sorted is collected below the sheave case. In a combine provided with a No. 1 recovery unit that performs and a No. 2 recovery unit that recovers the No. 2 item behind the No. 1 recovery unit,
Over a position adjacent the top of the 2nd recovery section of the sieve casing to the rear end of the sieve casing, a plurality of the sorting plate is parallel deployed back and forth in a predetermined pitch, said plurality of sorting plate is horizontal axis swingably supported around said plurality of sorting plate long support frame back and forth across the connected, the angle of Kifuku number of sorting plate before in conjunction with the back-and-forth movement of the said support frame is changed, the A chaff sheave is provided so that the opening is set by fixing the support frame to the sheave case,
Among the plurality of sorting plates, an opening setting operation tool that is directly contacted and linked with one sorting plate on the rear side, of the outer rear part of the side plate on the laterally lateral side outside the sheave case , together with the provided in the vicinity of the dust-exhaust port located at the rear end of the front Symbol threshing apparatus, the operating member is falling guide to the treated product ruled leakage from the chaff sieve at the rear end of the sieve casing to the 2nd recovery portion A combine that extends downward from a bottom plate in a downwardly inclined posture so that the opening degree of the chaff sheave can be changed by operating the operating tool from the dust outlet side. The operation tool includes a connecting member that connects the outer rear portion of the side plate to an eccentric rotation mechanism that swings the sheave case back and forth from the start position to the end position of the entire operation area in a side view. , an upper end of the outer post portions of said side plates, so as to be positioned between and projecting extended end of the downward side of the bottom plate of the operating member is to the rear lower side of the front Symbol bottom plate The combine according to claim 1, wherein the combine is disposed so as to be positioned at a distance. The operating member may, while being swung freely pivotally connected in the horizontal direction of the horizontal axis around to the front SL side plate in front SL front side of the pivotally linked portion in the side plates, said rear The combine according to claim 1 or 2 , wherein the combiner is linked to a single sorting plate on the side and is formed so as to have a rear-lowering shape from the pivotally connected portion . The is also visible from the lower edge of the side plate on the side of the rear end of the sieve casing is projected operating tool fixing plate to the lower, to the operating tool fixing plate, the swing operation range of the operation member By providing a plurality of positioning engaging portions corresponding to a plurality of locations in the above, and by separately engaging and disengaging the extending end side of the operating tool with respect to each of the engaging portions, It is configured to be able to position the operation position at the plurality of locations ,
The combine according to claim 3 , wherein the extending end portion is configured not to protrude rearward from the rear end portion of the sheave case from the start end position to the end position of the entire operation area in a side view. .   A chopping device for chopping the stem portion of the threshing product discharged from the dust outlet is disposed behind the threshing device, and the chopping device is positioned around the longitudinal center of the machine in the lateral direction of the body. The combine according to any one of claims 1 to 4, wherein the combiner is attached so that the dust outlet can be opened by swinging the left and right lateral outer sides of the machine body.   The combine according to any one of claims 1 to 5, wherein the chaff sheave is configured to be detachable from the sheave case.

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