JP7068780B2 - Threshing device - Google Patents

Description

The present invention relates to a threshing device.

The threshing device includes a handling chamber in which all the culms of the harvested products are supplied, a handling cylinder rotatably provided in the handling chamber for handling and processing the supplied harvested products, and a receiver provided around the outer circumference of the handling cylinder. A threshing part having a net, a sorting frame provided swingably below the receiving net, a chaf sheave supported by the sorting frame and capable of adjusting the opening of the processed material leakage hole, and provided behind the chaff sheave. A sorting unit having a straw rack is provided, and a first collecting unit for collecting the first processed material selected by the chaf sheave and a second collecting unit provided behind the first collecting unit and sorted by the chaf sheave. Some are equipped with a second collection unit that collects things.

In this threshing device, dust such as the first processed material, the second processed material and the cut straw is sorted from the processed material from the threshing part by the chaf sheave, the first processed material is collected in the first collection part, and the second processed material is collected. Is collected by the No. 2 collection unit. Dust is transferred to the straw rack, and in the straw rack, the second processed material mixed with the dust is eliminated and the dust is discharged.
Further, for example, when a large amount of harvested material is supplied to the handling chamber, the opening of the asava hole for the processed material of the chaf sheave is widened so that the large amount of processed material does not stay in the chaf sheave. When a large amount of dust such as cut straw is mixed in the processed material from the threshing part, it is difficult for dust to be mixed in the 1st processed material collected in the 1st collection part and the 2nd processed material collected in the 2nd collection part. In addition, it has become possible to adjust the opening of the processed product leakage hole of the chaf sheave according to the amount, properties, variety, etc. of the harvested material, such as narrowing the opening of the processed product leakage hole of the chaf sheave. ..

As a threshing device of this kind, there is conventionally one shown in, for example, Patent Document 1. The threshing device of Patent Document 1 is provided with a threshing section having a handling chamber, a handling barrel, and a receiving net. A sorting unit having a sheave case, a chaff sheave and a straw rack as a sorting frame is provided. The first collection unit and the second collection unit are provided. An angle adjusting unit is provided as a mechanism for adjusting the opening degree of the processed material leakage hole of the chaff sheave.

Japanese Unexamined Patent Publication No. 2013-220068

When the conventional technique related to the chaff sheave is adopted, the opening degree is adjusted in a state where the opening degree of the processed material leakage hole changes in the same manner over the entire range of the chaff sheave. As a result, when the opening of the processed material leakage hole in the front part of the chaf sheave is widely adjusted so that the processed material located in the front part of the chaf sheave easily leaks, the processed material leakage pilot hole in the rear part of the chaf sheave is opened. The degree also becomes wider. As a result, dust is likely to leak at the rear of the chaff sheave, is transferred to the straw rack, and less dust is discharged to the outside of the machine by the straw rack. Further, if the opening degree of the processed material leakage hole in the front part of the chaf sheave is adjusted to be narrow so that dust does not easily leak in the front part of the chaf sheave, the opening degree of the processed material leakage hole in the rear part of the chaf sheave is also narrowed. As a result, the second processed material is less likely to leak at the rear part of the chaff sheave, is transferred to the strorack together with the dust, and the second processed material is discharged together with the dust by the strorack.

In the present invention, regardless of changes in the amount, properties, varieties, etc. of the harvested material, the sorting process by the chaf sheave and the dust discharge by the straw rack are performed in an appropriate state corresponding to the amount, properties, varieties, etc. of the harvested material. Provide a threshing device that can be used.

The threshing device according to the present invention
It has a handling chamber to which all the culms of the harvest are supplied, a handling cylinder rotatably provided in the handling chamber to handle and process the supplied harvest, and a receiving net provided around the outer circumference of the handling cylinder. The threshing department and
A sorting frame provided so as to be swingable below the receiving net, a chaf sheave supported by the sorting frame and capable of adjusting the opening of the processed material leakage hole, a straw rack provided behind the chaff sheave, and a straw rack. , A sorting unit having a grain sheave provided below the chaff sheave,
The No. 1 collection unit that collects the No. 1 processed product selected by the chaf sheave, and the No. 1 collection unit.
A second recovery unit, which is provided behind the first collection unit and collects the second processed material selected by the chaf sheave, is provided.
The chaf sheave is divided into a front chaf sheave and a rear chaf sheave.
The grain sheave is provided so as to extend below the front chaf sheave and below the rear chaf sheave.
The front chaf sheave is arranged above the first recovery unit, and the rear chaf sheave is arranged above the second collection unit.
The handling cylinder is configured in a non-drum shape and extends beyond the rear end of the sorting portion.
A plurality of handling tooth supports arranged on the handling cylinder with a handling cylinder support shaft extending in the front-rear direction of the handling chamber and a state along the handling cylinder support shaft and at intervals in the circumferential direction of the handling cylinder. In each of the member and the plurality of handle tooth support members, a state in which the handle tooth support member projects outward in the radial direction of the handle body and a state in which the members are spaced apart in a direction along the handle body support shaft. A plurality of handling teeth supported by the handling tooth support member are provided.
A front opening degree adjusting mechanism for changing the opening degree of the processed material leakage hole of the front chaf sheave and a rear opening degree adjusting mechanism for changing the opening degree of the processed material leakage hole of the rear chaf sheave are provided.
The rear portion of the Glen Seeb is extended to the rear side of the No. 2 recovery portion in the lateral view of the sorting portion.

According to this configuration, the opening degree of the processed material leakage hole of the front chaf sheave and the opening degree of the processed material leakage hole of the rear chaf sheave can be adjusted separately. This allows, for example, to adjust the opening of the treated material leak hole in the front chaf sheave to a wider side so that the processed material located in the front part of the chaf sheave can easily leak, but the processed material leak hole in the rear chaf sheave. By adjusting the opening degree to the narrow side, it becomes difficult for dust to leak at the rear part of the chaff sheave, and the dust can be transferred to the straw rack and easily discharged by the strola rack. In addition, even if the opening of the processed material leakage hole in the front chaf sheave is adjusted to the narrow side to make it difficult for dust located in the front part of the chaf sheave to leak, the opening of the processed material leakage hole in the rear chaf sheave can be adjusted. By adjusting to the wider side, the second processed material is more likely to leak at the rear of the chaff sheave, and the second processed material is transferred to the straw rack together with the dust and is prevented from being discharged to the outside of the machine together with the dust. can.

Therefore, by separately adjusting the opening of the treated material leakage hole in the front part and the rear part of the chaff sheave according to the change in the amount, properties, varieties, etc. of the harvested material, the amount, properties, varieties, etc. of the harvested material can be adjusted. Regardless of the change, the sorting process in the chaf sheave and the dust discharge by the straw rack can be performed in an appropriate state according to the amount, properties, varieties and the like of the harvested product.
In the present invention, the front chaf sheave includes a plurality of sorting members that are arranged side by side at intervals in the front-rear direction of the front chaf sheave to form the front chaf sheave, and the front opening degree adjusting mechanism comprises. A link for the front part, which is interlocked with the plurality of sorting members of the front chaf sheave and is moved in the front-rear direction to interlock and swing the plurality of sorting members of the front chaf sheave. The front operating tool comprises a front operating tool for moving the front link, the front operating tool is interlocked with an intermediate portion in the front-rear direction of the front link, and the rear chaff sheave is the said. A plurality of sorting members are provided which are arranged at intervals in the front-rear direction of the rear chaf sheave to form the rear chaf sheave, and the rear opening degree adjusting mechanism is interlocked with the plurality of sorting members of the rear chaf sheave and is linked to the front and rear. The rear operation is provided with a rear link for swinging the plurality of sorting members of the rear chaf sheave in an interlocking manner by being moved in a direction, and a rear operating tool for moving the rear link. It is preferable that the tool is interlocked and connected to the intermediate portion in the front-rear direction of the link for the rear portion.

In the present invention, the front chaf sheave includes a plurality of sorting members that are arranged at intervals in the front-rear direction of the front chaf sheave to form the front chaf sheave, and the rear chaf sheave is the rear chaff sheave. A plurality of sorting members are provided which are arranged side by side at intervals in the front-rear direction to form the rear chaf sheave, and the arrangement pitch of the sorting members of the front chaf sheave is different from the arrangement pitch of the sorting members of the rear chaf sheave. Is suitable.

According to this configuration, when the sorting members of the front chaf sheave and the rear chaf sheave are adjusted to the same support posture, the opening of the treated material leakage hole is different between the front chaf sheave and the rear chaf sheave, and the front chaf sheave and the rear chaf sheave are different. It is possible to make a difference in sorting accuracy and the like.

In the present invention, the first recovery unit is located below the front portion of the front chaf sheave, and the second recovery unit is located below the central portion of the rear chaf sheave in the front-rear direction. Suitable.

According to this configuration, the threshed product is located on the front side of the front chaf sheave, and the first processed product leaking from the front portion of the front chaf sheave can be smoothly collected by the first collection unit. The threshed product is located over a wide area of the rear chaf sheave, and it is easy to collect the second processed product leaking from a wide range of the rear chaf sheave so that the second collection unit does not leak.

In the present invention, it is preferable that the threshing machine has one operating hole that allows the front operating tool and the rear operating tool to be opened to the outside of the machine.

According to this configuration, the front operation tool and the rear operation tool can be switched in one operation hole, so that one operation of the front opening adjustment mechanism and the rear opening adjustment mechanism can be quickly changed to the other operation. You can quickly adjust the opening.

In the present invention, the handling cylinder is provided at the front portion of the handling cylinder, and is provided at a scraping portion for scraping the harvested material toward the rear of the handling barrel and at the rear side of the scraping portion. The chaf sheave is provided with a handling processing unit for threshing the harvested product scraped by the scraping unit, and the chaff sheave is located at a position corresponding to the central portion in the front-rear direction of the handling processing unit in the front-rear direction of the grain-removing machine. It is preferable that the front chaf sheave and the rear chaf sheave are divided.

According to this configuration, a large amount of threshed material generated on the front half side of the handling processing unit is received by a front chaff sheave equipped with a processed material leakage hole adjusted to an opening of a size corresponding to the threshing processed material and sorted. Can be processed. A relatively small amount of threshed product generated in the latter half of the hazing processing unit can be accepted by a rear chaff sheave equipped with a processed product leakage hole adjusted to an opening of a size corresponding to this threshing processed product for sorting processing. It is possible to perform sorting processing smoothly even if there are many processed materials, and it is possible to prevent dust from being mixed in the second processed material.

It is a left side view which shows the whole combine. It is a right side view which shows the whole combine. It is a top view which shows the whole of the combine. It is a vertical sectional side view which shows the threshing apparatus. It is a right side view of a threshing device. It is a side view which shows the reprocessing case and the vertical frame. It is a perspective view which shows the vertical frame. It is a vertical sectional rear view which shows a threshing part. It is a top view which shows the whole of the divided receiving net. 9 is a cross-sectional view taken along the line XX of FIG. It is sectional drawing which shows the support structure of a straw rack and a sieving line. It is a top view which shows the straw rack and the sieving line. It is a vertical sectional side view which shows the 1st air passage, the 2nd air passage, the 3rd air passage, and a chaff sheave. It is a side view which shows the front opening degree adjusting mechanism and the rear opening degree adjusting mechanism. It is a top view which shows the front opening degree adjusting mechanism and the rear opening degree adjusting mechanism. It is a rear view of a threshing device. It is a vertical sectional side view which shows the rear part of a threshing apparatus. It is a left side view which shows the rear part of a threshing apparatus. It is a front view which shows the upper part of a threshing apparatus. It is sectional drawing which shows another support structure of a straw rack and a sieving line. It is a top view which shows another support structure of a straw rack and a sieving line.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A case where the threshing device according to the embodiment of the present invention is applied to the combine will be described. FIG. 1 is a left side view showing the entire combine. FIG. 2 is a right side view showing the entire combine. FIG. 3 is a plan view showing the entire combine. The direction [F] shown in FIGS. 1, 2 and 3 is the front direction of the traveling machine 1, the direction [B] is the rear direction of the traveling machine 1, and the direction [L] shown in FIG. 3 is the left direction of the traveling machine 1. , [R] is defined as the right direction of the traveling machine 1.

As shown in FIGS. 1, 2, and 3, the combine includes a traveling machine body 1 equipped with a pair of left and right crawler traveling devices 2. The driving unit 3 is formed on the right end side portion in the front portion of the traveling machine body 1. The driver unit 3 is provided with a driver's seat 4. A sunshade 5 is provided above the driving unit 3. An engine 6 is provided below the driver's seat 4. A threshing device 7 and a bagging portion 8 are provided at the rear of the traveling machine 1. The threshing device 7 and the bagging portion 8 are arranged in the horizontal direction of the traveling machine 1. The bagging unit 8 is located behind the driving unit 3. The cutting and transporting device 13 extends forward from the portion of the front portion of the traveling machine 1 on the threshing device side. The cutting and transporting device 13 is provided with a transporting section 14 and a cutting section 15. The rear portion of the transport portion 14 is supported by the traveling machine body 1 via a support shaft. The transport unit 14 extends forward from the traveling machine body 1 and can swing up and down with the shaft core Y extending in the lateral width direction of the traveling machine body as a swing fulcrum. The cutting section 15 is supported by the extending end portion of the transport section 14 and is located in front of the traveling machine body 1.
The elevating cylinder 16 is connected to the transport unit 14 and the machine frame 1a. By swinging the transport unit 14 by expanding and contracting the elevating cylinder 16, the cutting unit 15 is moved up and down between the lowering work state and the ascending non-working state.

In this combine, the harvesting unit 15 is lowered to the lowering work state, and the traveling machine 1 is run in this state to perform the harvesting work of rice, wheat, soybean and the like. That is, the planted culm located in front of the traveling machine 1 is cut by the cutting unit 15, and the cut culm is supplied to the threshing device 7 by the transport unit 14. The transport unit 14 is equipped with a dust discharge device 17. In the dust exhaust device 17, dust such as cut straw generated in the transport unit 14 is sucked, and the sucked dust is discharged downward with respect to the transport unit 14 on the side opposite to the operation unit side. In the threshing device 7, the cut grain culm is threshed, and the threshed grains obtained by the threshing treatment are supplied to the bagging tank 18 of the bagging section 8 and stored.

[Structure of bagging portion 8]
As shown in FIG. 2, three bagging hoppers 19 arranged in the front-rear direction of the traveling machine 1 are formed in the lower part of the bagging tank 18. By attaching the threshing bag to the discharge tube 19a of the bagging hopper portion 19, the threshed grains can be taken out from the bagging tank 18 to the grain bag.

As shown in FIGS. 2 and 3, the work deck 12 is supported on the lateral side of the machine frame 1a. The work deck 12 can be switched between the descending use posture shown in FIG. 3 and the ascending storage posture shown by the two-dot chain line in FIG. A shade 9 is provided above the work space. A handrail bar 10 and an auxiliary bar 11 are provided on the lateral side of the bagging tank 18. The auxiliary bar 11 is used by the bagging worker as a backrest to make it easier for the bagging worker to stand on the work deck 12.

[Structure of cutting section 15]
As shown in FIGS. 1, 2, and 3, the cutting section 15 includes a cutting section frame 20. The cutting portion frame 20 includes a rear wall frame portion 21 connected to the extending end portion of the transport portion 14, a lateral side wall frame portion 22 extending forward from both lateral ends of the rear wall frame portion 21, and a rear wall frame. A deck frame portion 23 extending forward from the lower end portion of the portion 21 is provided. A clipper-type cutting device 24 is mounted on the front portion of the deck frame portion 23. Above the deck frame portion 23, the auger 25 is rotatably supported by the left and right lateral side wall frame portions 22. A rotary reel 27 is provided above the front of the cutting device 24. The rotary reel 27 is rotatably supported on the front end side of the reel support arm 26 extending forward from both lateral ends in the rear portion of the cutting portion frame 20. In the present embodiment, as the rotary reel 27, it is possible to adopt a rotary reel having a polygonal shape of a quadrangle or less or a hexagon or more, in which the shape in the direction along the rotation axis is formed into a pentagonal shape. The divider 28 is supported at the front end portion of the left and right lateral side wall frame portions 22.

In the cutting section 15, the planted culm is sown by the divider 28 into the planted culm to be cut and the planted culm not to be cut, and the planted culm to be cut is divided by the divider 28. Can be scooped up. While the tip side of the planted culm to be cut is pulled backward by the tine 27a of the rotary reel 27, the root of the planted culm to be cut is cut by the reaping device 24, and the planted culm is cut. .. The cut grain culm is laterally fed by the auger 25 to the front portion of the transport section 14, and is supplied to the transport section 14 through the opening (not shown) of the rear wall frame section 21. All the culms from the stock root to the tip of the harvested culm supplied to the transport unit 14 are transported rearward by the transport unit 14 and supplied to the threshing device 7.

[Structure of threshing device 7]
As shown in FIGS. 4 and 8, the threshing device 7 includes a threshing machine 30. The threshing section 31 is formed in the upper part of the threshing machine 30, and the sorting section 32 is formed in the lower part of the threshing machine 30.

The threshing section 31 is provided with a handling chamber 33 and a non-drum-shaped handling cylinder 34. The handling chamber 33 is formed by a front wall 35, a rear wall 36, left and right lateral side walls 37, a top plate 38, and a receiving net 39 provided around the outer circumference of the handling cylinder 34 of the threshing machine 30. An entrance 33a is provided at the front of the handling chamber 33. A dust discharge port 33b is provided at the rear of the handling chamber 33. A plurality of dust feeding valves 38a are provided on the inner surface side of the top plate 38. The plurality of dust transmission valves 38a are arranged at intervals in the front-rear direction of the handling cylinder 34.

The handling cylinder 34 is supported by the front wall 35 and the rear wall 36 via a rotation support shaft 40 (handling cylinder support shaft), and the shaft core X (hereinafter referred to as a handling cylinder shaft core) extending in the front-rear direction of the grain removal machine body of the rotation support shaft 40. It is rotationally driven by the drive mechanism 41 with X) as the center of rotation. The handling cylinder 34 includes a scraping portion 42 provided at the front portion of the handling cylinder 34 and a handling processing portion 43 provided at the rear side of the scraping portion 42. The scraping portion 42 is provided with a tapered base portion 42a having a smaller diameter toward the front end side of the handling cylinder 34, and a double spiral spiral blade 42b provided on the outer peripheral portion of the base portion 42a. .. The handling processing unit 43 is provided with six rod-shaped handling tooth support members 43a arranged at intervals in the circumferential direction of the handling cylinder 34. In each handling tooth support member 43a, a plurality of handling teeth 43b are projected from the handling tooth support member 43a toward the outer peripheral side of the handling cylinder 34. In the present embodiment, six handling tooth support members 43a are provided, but it is possible to adopt five or less or seven or more handling tooth support members.

In the threshing section 31, the harvested grain culm as a harvested product is supplied to the front end portion of the handling chamber 33 through the inlet 33a by the transport section 14. The supplied cut grain culm is scraped toward the rear of the handling cylinder 34 along the guide bottom plate 44 by the spiral blade 42b of the scraping portion 42 and supplied to the handling processing section 43. The cut grain culm supplied to the handling unit 43 is processed by the handling teeth 43b and the receiving net 39 to be threshed. At this time, the threshed product is rotated by the handling cylinder 34 to come into contact with the dust feed valve 38a, and is guided toward the rear part of the handling chamber 33 by the dust feed valve 38a. As a result, the threshed product is threshed while being transferred toward the rear part of the handling chamber 33. The threshed grains obtained by the threshing treatment fall to the sorting unit 32 through the processed product leak hole of the receiving net 39. Threshed dust such as cut straw generated by the threshing process is discharged to the outside of the handling room from the dust discharge port 33b.

[Structure of sorting unit 32]
As shown in FIG. 4, the sorting unit 32 includes a swing sorting device 45, a wall insert 46, a first recovery unit 47, and a second recovery unit 48.

The swing sorting device 45 is provided below the receiving net 39. A drive mechanism 49 is connected to the rear portion of the swing sorting device 45. The swing sorting device 45 is driven by a drive mechanism 49 so that the rear side moves up and down with the front support portion as a swing fulcrum. The wall insert 46 is provided below the front of the swing sorting device 45. The first recovery unit 47 is provided at a position behind the wall insert 46 below the swing sorting device 45. The second recovery unit 48 is provided at a position behind the first collection unit 47 below the swing sorting device 45. In the present embodiment, the first collection unit 47 and the second collection unit 48 are configured by a screw conveyor extending in the lateral width direction of the threshing device 7.

In the sorting unit 32, the processed material leaked from the receiving net 39 is dropped and received by the rocking sorting device 45, and the received processed material is shaken while being conveyed backward by the rocking sorting device 45. In addition, the sorting process is performed by receiving the sorting wind from the wall insert 46. The clear grains as the first processed product obtained by the sorting process flow down to the first collection unit 47 and are collected, and are transported to the lateral outside of the threshing machine 30 on the bagging portion side by the first collection unit 47. The untreated grains as the second processed part obtained by the sorting process flow down to the second collecting part 48 and are collected, and are conveyed to the lateral outside of the threshing machine 30 on the bagging part side by the second collecting part 48. .. Sorting dust such as straw dust as the third processed material generated by the sorting process is discharged from the rear end of the swing sorting device 45 to the rear.

As shown in FIG. 4, a dust discharge port 50 is provided on the rear wall 36 as the rear part of the threshing device 7. A discharge port cover 51 that covers the dust discharge port 50 is attached to the rear wall 36. The threshing dust discharged from the dust discharge port 33b of the handling chamber 33 and the sorting dust discharged from the rocking sorting device 45 are discharged from the dust discharging port 50 to the inside of the discharging port cover 51 together with the sorting wind, and are discharged to the inside of the discharging port cover 51. It is discharged to the rear of the threshing device 7 from the discharge port provided at the lower part of 51.

As shown in FIG. 5, a threshing device 52 and a reducing device 53 are provided on the lateral side of the threshing machine 30 on the bagging portion side. The clear grains conveyed by the first collection unit 47 are inherited by the grain frying device 52, and are transported to and supplied to the bagging tank 18 by the grain frying device 52. The untreated grains conveyed by the No. 2 recovery unit 48 are inherited by the reduction device 53, are conveyed to the upper part of the sorting unit 32 by the reducing device 53, and are reduced to the front portion of the swing sorting device 45.

As shown in FIG. 5, a reprocessing case 54 is provided at the starting end of the reducing device 53. The second processed material from the second collecting unit 48 is subjected to single grain processing inside the reprocessing case 54. As shown in FIG. 6, lid members 55 for inspection ports are detachably provided at two locations on the peripheral portion of the reprocessing case 54. The lid member 55 is closed by connecting the flange 55a of the lid member 55 to the flange 54a of the reprocessing case 54 by a connecting bolt.

As shown in FIGS. 5 and 6, a recess 57 is formed in the vertical frame 56 in the lateral side wall 37 of the threshing machine 30. The reprocessing case 54 is deployed in a state where the flange 54a and the flange 55a are inserted into the recess 57. It is possible to narrow the distance between the vertical frame 56 on the reducing device side and the vertical frame 58 on the grain raising device side without narrowing the distance between the reducing device 53 and the grain raising device 52. Two strut members 59A and 59B are interposed between the upper portion and the lower portion of the vertical frame 56 to form a recessed portion 57 and to connect the upper portion and the lower portion of the vertical frame 56. .. It is possible to form the recessed portion 57 while ensuring the rigidity of the vertical frame 56 by reinforcing the tension members 59A and 59B. As shown in FIGS. 6 and 7, in the present embodiment, an upper side portion 59a attached to the lower end of the upper portion of the vertical frame 56 is provided on the upper portion of one of the tension members 59A. A lower side portion 59b attached to the upper end of the lower portion of the vertical frame 56 is provided at the lower portion of one of the tension members 59A. The tension member 59B may be omitted.

[Details of receiving net 39]
As shown in FIG. 4, the front end portion of the receiving net 39 is supported by the front support member 60, the rear end portion of the receiving net 39 is supported by the rear supporting member 61, and the front end portion and the rear end portion of the receiving net 39. Two points on the front side and the rear side in the intermediate portion between and are supported by the intermediate support member 62. The receiving net 39 is supported by the threshing machine 30 via the front support member 60, the intermediate support member 62, and the rear support member 61. As shown in FIGS. 4 and 8, the rear support member 61 is arranged so that the dust discharge port 33b is located below the support member 61, and is provided over the left and right ends of the threshing portion 31. The left and right end portions 61a of the rear support member 61 are connected to the lateral side wall 37. An upwardly open recess is formed between the left and right end portions 61a of the rear support member 61. The rear end portion of the handling cylinder 34 passes through the recessed portion and penetrates the support member 61 in the front-rear direction.

As shown in FIG. 8, the rear support member 61 is provided with a notch portion 61b in which the lower portion of the left and right end portions 61a of the support member 61 is cut out toward the upper side. The dust outlet 33b extends to the left and right notches 61b, and the dust outlet 33b is a wider dust outlet that expands upward as compared with the one without the notch 61b.

The receiving net 39 is configured to be able to be divided in the front-rear direction by a dividing line extending in the circumferential direction of the handling cylinder 34 at a position where each of the two intermediate support members 62 is located, and is configured in the handling cylinder peripheral direction of the receiving net 39. It is configured so that it can be divided in the left-right direction by a dividing line extending in a direction along the axis direction of the handling cylinder 34 at a portion in the middle portion of the above. That is, the receiving net 39 is composed of six divided receiving nets 39A (see FIG. 9).

As shown in FIG. 9, the split receiving nets 39A include a plurality of vertical rails 39t arranged at intervals along the axis direction of the handling cylinder 34, and a plurality of vertical rails 39t arranged at intervals in the circumferential direction of the handling cylinder 34. It is equipped with 39p and 39y cross rails. One ends of the plurality of vertical bars 39t and the other ends of the plurality of vertical bars 39t are connected to each other by a connecting frame 39f. Each vertical rail 39t is composed of an arc-shaped strip material centered on the handling barrel shaft core X. A part of the cross rails 39p and 39y among the plurality of cross rails 39p and 39y is made of a round pipe material, and the remaining cross rails 39y are made of a strip material. The plurality of cross rails 39p are arranged so that two round cross rails 39p are located between the strip-shaped cross rails 39y and between the strip-shaped cross rails 39y and the connecting frame 39f. I'm out. As shown in FIGS. 8 and 10, the horizontal rails 39p, 39y and the vertical rails 39t are in a state where the horizontal rails 39p, 39y are inserted into the notches formed in the vertical rails 39t, and the strip-shaped horizontal rails 39y. Both the round cross rail 39p and the round cross rail 39p are connected in a state where they do not protrude inward (handler body side) from the vertical rail 39t. The handling body side edge of the strip-shaped horizontal rail 39y and the handling body side edge of the vertical rail 39t are flush with each other, and the handling body side edge of the round horizontal rail 39p and the handling of the vertical rail 39t are handled. It is flush with the torso side edge.

Therefore, the receiving net 39 is in a state along the circumferential direction of the handling cylinder 34, and the strip-shaped vertical rails 39t arranged at intervals in the direction along the direction of the handling cylinder shaft core X and the direction of the handling cylinder shaft core X. A strip-shaped cross rail 39y lined up at intervals in the circumferential direction of the handling cylinder 34 in a state along the direction along the handling cylinder 34, and in the circumferential direction of the handling cylinder 34 in a state along the direction along the direction of the handling cylinder shaft core. It is equipped with round cross rails 39p, which are lined up at intervals.
The horizontal rails 39p and 39y are provided so as not to protrude from the vertical rails 39t toward the handling cylinder side. Since the round cross rail 39p is provided and the cross rails 39p and 39y do not protrude from the vertical rail 39t toward the handling cylinder side, the threshing process can be performed in a state where the threshing resistance is not so strong. Since it is equipped with a strip-shaped cross rail 39y, threshing can be performed in a state where threshing loss is unlikely to occur even in rice and wheat.

[Details of rocking sorting device 45]
As shown in FIG. 4, the swing sorting device 45 includes a sorting frame 65. The sorting frame 65 is driven by a drive mechanism 49 so that the rear side moves up and down with the front support portion as a swing fulcrum. The first Glenpan 66 is supported on the front portion of the sorting frame 65. Behind the first Glenpan 66, the chaff sheave 67 is supported by the sorting frame 65. Behind the chaff sheave 67, a straw rack 68 and a sieving line 69 are supported by a sorting frame 65. Below the front of the chaff sheave 67, a second Glenpan 70 is supported by a sorting frame 65. Behind the second Glenpan 70, the Glenshive 71 is supported by the sorting frame 65. Below the rear of the Glen Sheave 71, the flow guide 72 is supported by the sorting frame 65.

As shown in FIGS. 11 and 12, the straw rack 68 and the sieve wire 69 are arranged in the lateral width direction of the swing sorting device 45 in a state where the straw rack 68 is positioned one by one between the straw racks 68 in a plan view. I'm out. The attachment portion 68a of the straw rack 68 is fixed to the front side portion 73a of the support member 73 provided in the sorting frame 65 by the connecting screw 68b, and the straw rack 68 extends rearward from the front side portion 73a. The front end portion of the sieve wire 69 is pressed and fixed to the rear side portion 73b of the support member 73 by the mounting plate 74, and the sieve wire 69 extends rearward from the rear side portion 73b.

As shown in FIGS. It is extended upward. The processed material guide portion 76 for No. 2 extends from the No. 2 gutter portion 48a as the No. 2 bottom portion, which is the bottom portion of the No. 2 recovery portion 48, toward the rear lower portion and the rear upper portion of the straw rack 68.

The processed material leaking from the front part of the receiving net 39 falls to the first Glenpan 66 and flows into the chaff sheave 67 from the first Glenpan 66. The processed material that has flowed into the chaf sheave 67 from the first Glen pan 66 and the processed material that has fallen directly from the receiving net 39 to the chaf sheave 67 are shaken and sorted by the chaf sheave 67. The processed material leaking from the front portion of the chaff sheave 67 falls into the second Glen pan 70 and flows into the Glen sheave 71 from the second Glen pan 70. The processed material that has flowed from the second Glenpan 70 into the Glensive 71 and the processed material that has fallen directly from the chaff sheave 67 to the Glensive 71 are shaken and sorted by the Glensive 71.

The No. 1 processed material (clear grain) leaked from the front portion of the Glen Sheave 71 falls directly onto the No. 1 processed material guide portion 75. The first processed material (clear grain) leaked from the rear part of the Glen Seeb 71 falls to the flow-down guide 72 and flows from the flow-down guide 72 into the processed material guide portion 75 for the first. The No. 1 processed material that fell from the Glen Seeb 71 to the No. 1 processed object guide section 75 and the No. 1 processed object that flowed from the flow guide 72 to the No. 1 processed object guide section 75 are the No. 1 processed object guides. It is guided down by the unit 75 and flows into the first collection unit 47.

The second processed material that fell from the rear end of the Glen Sheave 71, the second processed material that leaked from the rear of the chaf sheave 67 and the straw rack 68 fell to the second processed material guide section 76, and the second processed material guide. It is guided down by the unit 76 and flows into the second collection unit 48.

The sorting dust discharged from the rear end of the chaff sheave 67 is received by the straw rack 68 and the sieving wire 69, and while being sorted by the sieving wire 69, is conveyed rearward by the straw rack 68 and discharged to the rear of the swing sorting device 45. Ru. The second processed material mixed in the sorting dust leaks from between the straw racks 68 and flows into the second collecting unit 48.

[Structure related to wind sorting]
As shown in FIG. 13, the wall insert 46 includes a fan case 46a. A rotary blade 46b is rotatably provided inside the fan case 46a. An upper discharge port 46c and a rear discharge port 46d are formed on the peripheral portion of the fan case 46a. In the wall insert 46, a sorting wind is generated by a rotary blade 46b that is driven to rotate, and the generated sorting wind is supplied forward and upward from the upper discharge port 46c and is supplied backward from the rear discharge port 46d.

As shown in FIGS. 4 and 13, the first wind guide portion 78 extends from the edge portion of the upper discharge port 46c in the fan case 46a toward the front side portion of the swing sorting device 45. The first wind passage 77a on the front side is formed by the first wind guide portion 78. The sorting wind discharged from the upper discharge port 46c is guided to the front end of the swing sorting device 45 by the first air passage 77a on the front side, and a part of the sorting wind from the wall insert 46 is below the first Glenpan 66 and It is supplied to the front of the chaff sheave 67.

A second wind guide portion 79 extends from the upper edge portion of the rear discharge port 46d in the fan case 46a toward the front bottom portion of the swing sorting device 45. A third wind guide portion 80 is provided behind the rear discharge port 46d. A first guide portion 81 and a second guide portion 82 are provided at the front end portion of the sorting frame 65. The first air passage 77b on the rear side is formed by the second wind guide portion 79, the first action portion 80a of the third wind guide portion 80, the first guide portion 81, and the second guide portion 82. A part of the sorting air discharged from the rear discharge port 46d flows into the first air passage 77b on the rear side, is guided to the front end of the swing sorting device 45 by the first air passage 77b on the rear side, and is wall insert. A part of the sorting wind supplied backward from the 46 is supplied below the first Glenpan 66, above the front part of the chaff sheave 67 and above the second Glenpan 70.

The fourth wind guide portion 83 extends from the front end of the first gutter portion 47a of the first recovery portion 47 toward the lower part of the rear discharge port 46d. The second wind passage 84 is formed by the fourth wind guide portion 83 and the second action portion 80b of the third wind guide portion 80. A part of the sorting air discharged from the rear discharge port 46d flows into the second air passage 84, and is guided by the first air passage 77a on the front side and the first air passage 77b on the rear side of the swing sorting device 45. A part of the sorting wind, which is guided by the second air passage 84 to the part posterior to the part where the sorting wind acts and is supplied backward from the wall insert 46, is supplied to the rear part of the chaff sheave 67, the grain sheave 71 and the straw rack 68. Will be done.

The fourth wind guide portion 83 forms the bottom of the second air passage 84. The fourth wind guide portion 83 is formed in an inclined state of backward ascending. The sorting wind of the second air passage 84 is guided so as to pass above the first recovery unit 47 by the fourth wind guide unit 83 which is the bottom of the second air passage 84. A wind guide 87 is provided above the front of the first recovery unit 47. A part of the sorting wind of the second air passage 84 is guided by the wind guide 87 toward the upper side of the first collection unit 47.

A fifth wind guide portion as a bottom portion 85 is provided over the lower portion of the wall insert 46 and the front end of the second gutter portion 48a. The third air passage 86 is formed by the bottom portion 85, the fourth wind guide portion 83, the first gutter portion 47a, and the processed material guide portion 75 for the first portion. The third air passage 86 is formed so as to extend from the wall insert 46 under the first recovery section 47 to the front side of the second recovery section 48. The inlet 86a of the third air passage 86 is opened on the rear side of the lower part of the rear discharge port 46d. The outlet 86b of the third air passage 86 is opened at a location on the front side of the second recovery unit 48. A part of the sorting wind discharged from the rear discharge port 46d flows into the third air passage 86, passes under the first recovery unit 47, rises to the outlet 86b, exits the outlet 86b, and exits the second collection unit. It is guided by the third air passage 86 so as to flow backward above the 48, and a part of the sorting wind supplied backward from the wall insert 46 is supplied to the second processed object toward the second recovery unit 48. ..

The third air passage 86 is formed in a state where the fourth wind guide portion 83, the first gutter portion 47a, and the processed material guide portion 75 are provided as the upper part of the third air passage 86. That is, the third air passage 86 includes a fourth wind guide portion 83 forming the bottom of the second air passage 84, a first gutter portion 47a for collecting the first processed material, and a processed material guide portion 75. It is formed in a state of being utilized in the upper part of the third air passage 86.
In the bottom portion 85 of the third air passage 86, the front side portion 85a located between the wall insert 46 and the first recovery portion 47 of the bottom portion 85 is substantially along the fourth wind guide portion 83, and the bottom portion 85. The rear portion 85b located between the first recovery unit 47 and the second collection unit 48 is formed along the processed material guide unit 75 for the first collection unit.

There are many wall inserts in the wall insert 46 so that the sorting winds supplied by the wall insert 46 to the front first air passage 77a, the rear first air passage 77b, the second air passage 84 and the third air passage 86 do not have insufficient air volume. A rotary blade 46b is provided. In this embodiment, 16 rotary blades 46b are provided.

As shown in FIG. 13, the first gutter portion 47a is provided with an inspection port 90 and a lid 91 for opening and closing the inspection port 90. One end of the lid 91 in the lateral width direction of the first gutter portion 47a is supported by the first gutter portion 47a via a hinge member 92. The lid 91 can be opened and closed by swinging the connecting shaft of the hinge member 92 as a swinging fulcrum. The bottom 85 of the third air passage 86 is provided with an inspection opening 93 facing the lid 91. The lid 94 of the inspection opening 93 is supported on the bottom 85 so as to be removable and openable. When inspecting or cleaning the No. 1 recovery unit 47, the lid 91 can be opened through the inspection opening 93 and the inspection opening 90 can be opened by opening the inspection opening 93.

[Structure of Chaf Sheave 67]
As shown in FIGS. 4 and 13, the chaf sheave 67 is divided into a front chaf sheave 67F and a rear chaf sheave 67R at a division portion A. The division portion A is located at a position corresponding to the central portion of the handling processing unit 43 of the handling cylinder 34 in the front-rear direction in the front-rear direction of the threshing machine 30. The front chaf sheave 67F and the first recovery unit 47 are arranged one above the other in a state where the first recovery unit 47 is located below the front portion of the front chaf sheave 67F. The rear chaf sheave 67R and the second recovery unit 48 are arranged vertically in a state where the second recovery unit 48 is located below the central portion of the rear chaf sheave 67R in the front-rear direction.

As shown in FIGS. 13 and 15, the front chaff sheave 67F and the rear chaff sheave 67R include a plurality of sorting members 95f and 95r. Each of the sorting members 95f and 95r is composed of a plate-shaped member long in the lateral width direction of the swing sorting device 45.

The plurality of sorting members 95f and 95r are arranged at intervals in the front-rear direction of the front chaf sheave 67F and the rear chaf sheave 67R. The gap between the sorting members 95f and 95r becomes the processed material leakage hole 96f and 96r. The sorting member 95f of the front chaf sheave 67F and the sorting member 95r of the rear chaf sheave 67R are arranged at different arrangement pitches. In this embodiment, an arrangement configuration is adopted in which the arrangement pitch Pr of the rear chaf sheave 67R is larger than the arrangement pitch Pf of the front chaf sheave 67F. Even if the arrangement pitch Pf of the front chaf sheave 67F is larger than the arrangement pitch Pr of the rear chaf sheave 67R or the arrangement pitch Pf of the front chaf sheave 67F and the arrangement pitch Pr of the rear chaf sheave 67R are the same. good.

As shown in FIGS. 13 and 15, the sorting members 95f and 95R in the front chaf sheave 67F and the rear chaf sheave 67R have the upper links 97f and 97r and the lower links 98f and 98r on both lateral ends of the sorting members 95f and 95r. It is erected. The upper links 97f and 97r are fixed to the sorting frame 65. The sorting members 95f and 95r are swingably supported by the upper links 97f and 97r. The lower links 98f and 98r and the sorting members 95f and 95R are connected so as to be able to swing relative to each other. The lower links 98f and 98r are supported by the upper links 97a and 97r via the sorting members 95f and 95r, and can move in the front-rear direction. By moving the lower links 98f and 98r in the front-rear direction, the sorting members 95f and 95r swing with respect to the upper links 97f and 97r and the lower links 98f and 98r, and the sorting members 95f and 95r in a plan view are connected to each other. The width of the gap changes, and the opening degrees of the processed material leakage holes 96f and 96r change.

As shown in FIG. 14, a front opening degree adjusting mechanism 100F and a rear opening degree adjusting mechanism 100R are provided on the lateral side of the swing sorting device 45, and the processed material leakage hole 96f of the front chaff sheave 67F is opened. The degree is configured to be changeable by the front opening degree adjusting mechanism 100F, and the opening degree of the processed material leakage hole 96r of the rear chaff sheave 67R is configured to be changed by the rear opening degree adjusting mechanism 100R.

For example, when a large amount of cut grain culm is supplied to the threshing device 7, the opening degree is adjusted so that the processed material leakage hole 96f of the front chaf sheave 67F is larger than the processed material leakage hole 96r of the rear chaf sheave 97R. Even if there is a large amount of processed material supplied to the chaf sheave 67, the processed material leaks quickly in the front chaf sheave 67F, and the rear chaf sheave 67R is sorted so that dust does not easily leak out. It is possible to smoothly sort the processed material in a state where dust is unlikely to be mixed.

[Opening adjustment mechanism 100F. Configuration of 100R]
As shown in FIGS. 14 and 15, the front opening degree adjusting mechanism 100F includes a front operating tool 101. The front operating tool 101 is supported on the lateral side of the front chaf sheave 67F via a support pin 102 on the lateral side of the sorting frame 65, and can be swung with the support pin 102 as a swing fulcrum. .. The free end side of the front operating tool 101 and the lower link 98f (link for the front part) in the front chaf sheave 67F are interlocked and connected by a connecting pinn 103. The connecting pin 103 passes through an elongated hole-shaped through hole 104 provided in the sorting frame 65. By swinging the front operating tool 101, the lower link 98f is moved in the front-rear direction by the connecting pin 103, and the sorting member 95f is swung in the front-rear direction. 96f is changed and adjusted to the enlargement side and the reduction side. The front operating tool 101 is fixed to the adjustment position by attaching a removable lock member 106 to the positioning hole 101a provided in the front operating tool 101 and the lock hole 105 provided in the sorting frame 65. .. As a result, the processed material leakage hole 96f of the front chaf sheave 67F can be held at the adjusted opening degree.

As shown in FIGS. 14 and 15, the rear opening degree adjusting mechanism 100R includes a rear operating tool 107. The rear operating tool 107 is supported on the lateral side of the rear chaf sheave 67R via a support pin 108 on the lateral side of the sorting frame 65, and can be swung with the support pin 108 as a swing fulcrum. The free end side of the rear operating tool 107 and the lower link 98f (rear link) in the rear chaf sheave 67R are interlocked and connected by a connecting pin 109. The connecting pin 109 passes through an elongated hole-shaped through hole 110 provided in the sorting frame 65. By swinging the rear operating tool 107, the lower link 98r is moved in the front-rear direction by the connecting pin 109, the sorting member 95r is swung in the front-rear direction, and the processed material leakage hole 96r of the rear chaf sheave 67R is opened. It is changed and adjusted to the enlargement side and the reduction side. The rear operating tool 107 is fixed to the adjustment position by attaching a removable lock member to the positioning hole 111a provided in the rear operating tool 107 and the lock hole 112 provided in the sorting frame 65. As a result, the processed material leakage hole 96r of the rear chaf sheave 67R can be held at the adjusted opening degree.

One operation hole 115 (see FIG. 14) is opened in the lateral side wall 37 of the threshing machine 30.
The operation hole 115 is formed in a hole having a size facing the front operation tool 101 and the rear operation tool 107, and is configured to be opened and closed by a removable lid 116 (see FIG. 14). By opening the operation hole 115, the front operation tool 101 and the rear operation tool 107 are opened to the outside of the threshing machine 30 by the operation hole 115, and the front operation tool 101 and the front operation tool 101 and the rear operation tool 107 are opened from the outside of the threshing machine 30 through the operation hole 115. The rear operating tool 107 can be operated.

[Wind vent of threshing device 7]
As shown in FIGS. 16, 17, and 18, a plurality of wind vent holes 120 are opened in the rear wall portion 38r of the top plate 38 in the handling chamber 33 as the rear upper portion of the threshing portion 31. A plurality of wind vent holes 121 are opened in the rear wall 36 of the handling chamber 33 as the rear upper part of the threshing portion 31. A plurality of wind vent holes 122 are opened in the left and right lateral side walls 37 in the rear portion of the handling chamber 33 as the rear upper portion of the threshing portion 31.

As shown in FIG. 16, in the air vent hole 120 of the top plate 38, a part of the plurality of air vent holes 120 and the remaining plurality of air vent holes 120 are the cores of the handling barrel of the rear wall portion 38r. It is divided into a part on the left side of X and a part on the right side of the handling barrel core X. The left and right wind vent holes 120 are formed in a slit shape extending in the lateral width direction of the top plate 38 and are arranged in the vertical direction. Each wind vent hole 120 extends along the direction of the tangent line S in the rotation locus T of the handling tooth 43b of the handling cylinder 34, and is arranged parallel to the direction of the normal line B in the rotation locus T.
That is, the center in the width direction of the top plate at the portion between the air vent hole 120 on the left side and the air vent hole 120 on the right side, and the straight line (normal line H) passing through the handling barrel shaft core X and the rotation locus T are The direction of the tangent line S at the intersecting point and the longitudinal direction of the wind vent hole 120 match or almost match. The flow direction of the sorting wind that has flowed into the threshing section 31 and is rotated by the handling cylinder 34 is in the direction along the wind vent hole 120, so that the sorting wind can easily escape from the wind vent hole 120.

As shown in FIG. 16, in the air vent hole 121 of the rear wall 36 in the handling chamber 33, a part of the plurality of air vent holes 121 and the remaining plurality of air vent holes 121 are located on the left end side of the rear wall 36. It is divided into the right end side part and the right end side part. The left and right wind vent holes 121 are formed in a slit shape extending in the vertical direction of the rear wall 36 and are arranged in the lateral width direction of the rear wall 36. Each wind vent hole 121 extends along the direction of the tangent line S in the rotation locus T of the handling tooth 43b of the handling cylinder 34, and is arranged parallel to the direction of the normal line H in the rotation locus T. That is, the direction of the tangent line S at the center of the wind vent hole 121 in the longitudinal direction and the intersection of the straight line (normal line H) passing through the handling cylinder shaft core X and the rotation locus T of the handling cylinder 34, and the wind vent. The longitudinal direction of the hole 121 is aligned or almost aligned with the longitudinal direction.

The wind vent hole 122 shown in FIG. 17 is a wind vent hole of the right lateral side wall 37, and the wind vent hole 122 shown in FIG. 18 is a wind vent hole of the left lateral side wall 37. As shown in FIGS. 17 and 18, the wind vent holes 122 in the left and right lateral side walls 37 at the rear of the handling chamber 33 are formed in a slit shape extending in the vertical direction of the lateral side wall 37 and in the front-rear direction of the lateral side wall 37. Lined up in. The wind vent holes 122 of the left lateral side wall 37 and the right lateral side wall 37 are along the direction of the tangent line S in the rotation locus T of the handling teeth 43b of the handling cylinder 34. That is, the direction of the tangent line at the point where the straight line passing through the center in the longitudinal direction of the air vent hole 122 and the handling cylinder axis X and the rotation locus T of the handling cylinder 34 intersect, and the longitudinal direction of the air vent hole 122 are Matches or almost matches.

As shown in FIGS. 16 and 17, a wind vent 123 is formed in the upper portion 51a of the discharge port cover 51. The wind vent 123 is provided with a mesh member for preventing dust from blowing through.

The sorting wind that has passed above the swing sorting device 45, the first collecting section 47, and the second collecting section 48 tends to flow backward through the wide dust discharge port 33b as described above. Further, the sorting wind flowing into the rear upper part of the threshing section 31 easily escapes to the outside from the wind vent holes 120, 121, 122. Further, the sorting wind that has flowed into the inside of the discharge port cover 51 from the dust discharge port 50 easily escapes to the outside from the wind vent 123 of the discharge port cover 51. As a result, the internal pressure of the threshing device 7 is unlikely to increase, and the sorting wind from the wall insert 46 smoothly flows through the sorting unit 32, so that the sorting process is performed satisfactorily. In addition, it is difficult for dust and the like to blow out from the entrance 33a of the handling chamber 33.

The wind coming out of the air vent holes 120 of the top plate 38 is guided to flow toward the left side of the machine body (the side opposite to the bagging portion side) by the duct 125 surrounding all the air vent holes 120. The wind coming out of the left and right air vent holes 121 of the rear wall 36 is guided to flow toward the left side of the machine body by the duct 126 surrounding the left and right air vent holes 121. The wind coming out of the air vent holes 122 of the left and right lateral side walls 37 is guided to flow backward by the duct 127 surrounding all the air vent holes 122.

As shown in FIG. 19, a plurality of wind vent holes 128 are opened in the front wall portion 38f of the top plate 38. The wind vent holes 128 are formed in a slit shape extending in the horizontal width direction of the top plate 38, and are arranged in the horizontal width direction and the vertical direction of the top plate 38. The sorting wind that has flowed into the front side of the threshing section 31 easily escapes from the air vent hole 128 to the outside of the machine. The wind coming out of the air vent hole 128 is guided by the duct 129 surrounding the air vent hole 128 so as to flow toward the left side of the machine body (the side opposite to the operation unit side).

[Another Embodiment]
(1) FIG. 20 is a cross-sectional view showing another support structure that supports the straw rack 68 and the sieve line 69. FIG. 21 is a plan view showing another support structure that supports the straw rack 68 and the sieve line 69. In another support structure, the front end of each sieve line 69 is welded to the upper portion 130a of the support plate 130, and each sieve line 69 is supported by the support plate 130. The mounting portion 68a of the straw rack 68 and the support plate 130 are fixed to the support member 73 by joint tightening with a connecting screw 131.

(2) In the above-described embodiment, an example in which a bar-shaped handling cylinder is provided is shown, but a drum-shaped handling cylinder may be provided.

(3) In the above-described embodiment, the example in which the bagging portion 8 is provided is shown, but a grain tank may be provided instead of the bagging portion 8.

(4) In the above-described embodiment, the wind vent hole 120, 121, 122, 128 and the wind vent 123 may be provided without the wind vent and the wind vent 123.

(5) In the above-described embodiment, the example in which the wind vent holes 120, 121, 122 are formed in a slit shape is shown, but the shape is not limited to the slit shape, and may be formed in any shape such as a circle, a rectangle, or an oval. good.

(6) In the above-described embodiment, the wind vent holes 120, 121 formed in a slit shape extending in the direction along the tangential direction in the rotation locus T and lining up in the normal direction in the rotation locus T, or the tangential direction in the rotation locus T. An example of adopting a wind vent hole 122 formed in a slit shape in the direction along the line is shown, but even if it is formed in a slit shape, an arrangement configuration is adopted in which it extends in a direction different from the tangential direction and is lined up in a direction different from the normal direction. You may.

(7) In the above-described embodiment, the rear wall portion 38r of the top plate 38, the rear wall 36 of the handling chamber 33, and the lateral side wall 37 of the rear portion of the handling chamber 33 are provided with wind vent holes 120, 121, 122. Although an example is shown, only one of the rear wall portion 38r of the top plate 38, the rear wall 36 of the handling chamber 33, and the lateral side wall 37 of the rear portion of the handling chamber 33 is shown, or only one location. It may be provided and carried out.

(8) In the above-described embodiment, an example in which the wind vent hole 128 is provided in the front wall portion 38f of the top plate 38 is shown, but the wind vent hole 128 may not be provided.

(9) In the above-described embodiment, the example in which the discharge port cover 51 is provided is shown, but it may be carried out without the discharge port cover 51.

(10) In the above-described embodiment, an example is shown in which the arrangement pitches of the sorting members in the front chaf sheave 67F and the rear chaf sheave 67R are configured to be different, but they may be configured to be the same.

(11) In the above-described embodiment, the first recovery unit 47 is located below the front portion of the front chaf sheave 67F, and the second recovery unit 48 is located below the central portion of the rear chaff sheave 67R. , Any other arrangement may be adopted.

(12) In the above embodiment, the front operation tool 101 and the rear operation tool 107 are configured to be operated through separate operation holes, which is shown as an example in which the front operation tool 101 and the rear operation tool 107 can be operated in one operation hole 115. May be good.

(13) In the above-described embodiment, the division portion may be set at any position, which shows an example in which the chaff sheave 67 adopts a configuration in which the chaf sheave 67 is divided at a position corresponding to the central portion in the handling processing unit 43.

(14) In the above-described embodiment, an example in which the first air passage 77a on the front side and the first air passage 77b on the rear side are provided is shown, but only one of the first air passages is provided. May be good.

(15) In the above-described embodiment, an example in which the first air passage 77a on the front side, the first air passage 77b on the rear side, the second air passage 84, and the third air passage 86 are provided is shown, but the first air passage on the front side is provided. It may be carried out by providing the air passage 77a, the first air passage 77b on the rear side, and the second air passage 84, and not providing the third air passage 86. Alternatively, the second air passage 84 and the third air passage 86 may be provided, and the first air passage 77a on the front side and the first air passage 77b on the rear side may not be provided. Alternatively, it may be carried out by providing only the second air passage 84.

(16) In the above-described embodiment, an example is shown in which the bottom portion (first gutter portion) 47a, the wind guide portion 83 of the second air passage 84, and the processed material guide portion 75 are used in the upper part of the third air passage 86. However, the upper part of the third air passage 86 may be formed by a dedicated air passage forming member.

(17) In the above-described embodiment, an example in which the inspection port 90 is provided is shown, but the inspection may be carried out without the inspection port 90.

INDUSTRIAL APPLICABILITY The present invention can be used as a threshing apparatus for threshing corn or the like instead of rice, wheat, soybean or the like.

30 Threshing machine 31 Threshing part 32 Sorting part 33 Handling room 34 Handling cylinder 39 Receiving net 40 Handling cylinder support shaft (rotary support shaft)
43a Teeth support member 43b Hazing tooth 42 Scratch processing unit 47 No. 1 collection unit 48 No. 2 collection unit 65 Sorting frame 67 Chaf sheave 67F Front chaf sheave 67R Rear chaf sheave 68 Straw rack 95f Sorting member 95r Front part Link for, link for the rear (link below)
100F Front opening adjustment mechanism 100R Rear opening adjustment mechanism 101 Front operation tool 107 Rear operation tool 115 Operation hole Pf Arrangement pitch Pr Arrangement pitch

Claims (6)

It has a handling chamber to which all the culms of the harvest are supplied, a handling cylinder rotatably provided in the handling chamber to handle and process the supplied harvest, and a receiving net provided around the outer circumference of the handling cylinder. The threshing department and
A sorting frame provided so as to be swingable below the receiving net, a chaf sheave supported by the sorting frame and capable of adjusting the opening of the processed material leakage hole, a straw rack provided behind the chaff sheave, and a straw rack. , A sorting unit having a grain sheave provided below the chaff sheave,
The No. 1 collection unit that collects the No. 1 processed product selected by the chaf sheave, and the No. 1 collection unit.
A second recovery unit, which is provided behind the first collection unit and collects the second processed material selected by the chaf sheave, is provided.
The chaf sheave is divided into a front chaf sheave and a rear chaf sheave.
The grain sheave is provided so as to extend below the front chaf sheave and below the rear chaf sheave.
The front chaf sheave is arranged above the first recovery unit, and the rear chaf sheave is arranged above the second collection unit.
The handling cylinder is configured in a non-drum shape and extends beyond the rear end of the sorting portion.
A plurality of handling tooth supports arranged on the handling cylinder with a handling cylinder support shaft extending in the front-rear direction of the handling chamber and a state along the handling cylinder support shaft and at intervals in the circumferential direction of the handling cylinder. In each of the member and the plurality of handle tooth support members, a state in which the handle tooth support member projects outward in the radial direction of the handle body and a state in which the members are spaced apart in a direction along the handle body support shaft. A plurality of handling teeth supported by the handling tooth support member are provided.
A front opening degree adjusting mechanism for changing the opening degree of the processed material leakage hole of the front chaf sheave and a rear opening degree adjusting mechanism for changing the opening degree of the processed material leakage hole of the rear chaf sheave are provided.
A threshing device in which the rear portion of the grain sieve is extended to the rear side of the second collection portion in the lateral view of the sorting portion. The front chaf sheave comprises a plurality of sorting members that are spaced apart from each other in the front-rear direction of the front chaf sheave to form the front chaf sheave.
The front opening degree adjusting mechanism is interlocked with the plurality of sorting members of the front chaf sheave, and is moved in the front-rear direction to interlock and swing the plurality of sorting members of the front chaf sheave. A front link for moving the front link and a front operating tool for moving the front link are provided.
The front operating tool is interlocked and connected to an intermediate portion in the front-rear direction of the link for the front portion.
The rear chaf sheave comprises a plurality of sorting members that are spaced apart in the anteroposterior direction of the rear chaf sheave to form the rear chaf sheave.
The rear opening degree adjusting mechanism is interlocked with the plurality of sorting members of the rear chaf sheave, and is moved in the front-rear direction to interlock and swing the plurality of sorting members of the rear chaf sheave. The link and the rear operating tool for moving the rear link are provided.
The threshing device according to claim 1, wherein the rear operating tool is interlocked and connected to an intermediate portion of the link for the rear in the front-rear direction. The threshing device according to claim 2, wherein one operating hole capable of opening the front operating tool and the rear operating tool to the outside of the machine is opened in the threshing machine. The front chaf sheave comprises a plurality of sorting members that are spaced apart from each other in the front-rear direction of the front chaf sheave to form the front chaf sheave.
The rear chaf sheave comprises a plurality of sorting members that are spaced apart in the anteroposterior direction of the rear chaf sheave to form the rear chaf sheave.
The threshing apparatus according to any one of claims 1 to 3, wherein the arrangement pitch of the sorting member of the front chaf sheave and the arrangement pitch of the sorting member of the rear chaf sheave are different. The No. 1 recovery unit is located below the front portion of the front chaf sheave.
The threshing device according to any one of claims 1 to 4, wherein the second collecting unit is located below the central portion in the front-rear direction of the rear chaf sheave. The handling cylinder is provided at the front portion of the handling cylinder, and is provided at a scraping portion for scraping the harvested material toward the rear of the handling cylinder and at the rear side of the scraping portion, and is scratched by the scraping portion. Equipped with a handling unit that threshes the harvested harvest
One of claims 1 to 5, wherein the chaf sheave is divided into a front chaf sheave and a rear chaf sheave at a position corresponding to a central portion in the front-rear direction of the threshing processing unit in the front-rear direction of the threshing machine. The threshing device according to paragraph 1.

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