JP2014014332A - Threshing apparatus - Google Patents

Abstract

An object of the present invention is to provide a threshing apparatus capable of sufficiently performing a sorting process by a sorting unit on a threshing product that has leaked from a conveyance terminal side of a receiving network.
SOLUTION: A handling cylinder 3, a receiving net 5 for leaking a threshing processed product by the handling cylinder 3, a selection unit for selecting a threshing processed product leaked from the receiving net 5, and a rear end side of the receiving net 5 And a guide plate 35 for guiding the leaked threshing product to the front end side of the sorting unit.
[Selection] Figure 2

Description

  The present invention relates to a threshing apparatus. More specifically, the present invention relates to a threshing device including a handling cylinder, a receiving net that causes the threshing product to be leaked from the handling cylinder, and a selection unit that selects the threshing process product that has leaked from the receiving net.

  Conventionally, the above threshing apparatus has been publicly known (see, for example, Patent Document 1). In the threshing apparatus described in Patent Document 1, the threshing processed material leaked from the receiving net is supplied to the sorting unit. Specifically, among the threshing products that have leaked from the receiving net, those leaked from the conveying start end side of the receiving net are supplied to the transport starting end side of the sorting unit. And what leaked from the conveyance termination side of a receiving network is supplied to the conveyance termination side of a selection part.

JP 2010-200671 A

  However, in the threshing apparatus described in Patent Document 1, the threshing processed material leaked from the transport start end side of the receiving network is supplied to the transport start end side of the sorting unit, and leaked from the transport end side of the receiving net. The threshing processed product is supplied to the conveyance end side of the sorting unit. For this reason, the threshing processed material leaked from the conveyance end side of the receiving network has a shorter sorting time in the selection unit than the threshing processed material leaked from the conveyance start end side of the receiving network. Therefore, especially when a large amount of threshing product is supplied to the sorting unit, the threshing product leaked from the receiving end of the receiving network is not subjected to sufficient sorting processing in the sorting unit, and is removed from the machine. It may be discharged, which has been a factor in increasing grain loss.

  The present invention has been made in view of the situation as described above, and provides a threshing apparatus capable of sufficiently performing a sorting process by a sorting unit on a threshing processed product leaked from the conveyance terminal side of the receiving network. Objective.

  The characteristic configuration of the threshing apparatus according to the present invention includes a handling cylinder, a receiving net that causes the threshing product to be leaked by the handling cylinder, a sorting unit that sorts the threshing treatment product that has leaked from the receiving net, and the receiving net. And a guiding body for guiding the threshing processed material leaked from the conveyance end side to the conveyance start end side of the sorting unit.

  According to this characteristic configuration, the threshing processed material leaked from the conveyance end side of the receiving network is supplied to the conveyance start end side of the sorting unit by being guided by the guide body to the conveyance start end side of the sorting unit. Therefore, the sorting process by the sorting unit can be sufficiently performed on the threshing processed material that has leaked from the conveyance terminal side of the receiving network.

  The further characteristic structure of the threshing apparatus which concerns on this invention exists in the said guide body inclining to conveyance end side rise in side view.

  According to this characteristic configuration, the threshing product that has leaked from the conveyance end side of the receiving net flows down to the conveyance start end side along the inclination of the guide body. Therefore, the threshing processed material leaked from the conveyance end side of the receiving network can be smoothly and reliably supplied to the conveyance start end side of the sorting unit.

  A further characteristic configuration of the threshing apparatus according to the present invention is that the sorting unit includes a sheave case configured to be swingable, and the guide body is fixed to the sheave case.

  According to this characteristic configuration, the guide body swings with the sheave case by fixing the guide body to the sheave case configured to be swingable. Therefore, the threshing processed product on the guide body can be subjected to rocking selection.

  The further characteristic structure of the threshing apparatus which concerns on this invention exists in the said handling cylinder and the said receiving net inclining to the conveyance termination | terminus side rise in a side view.

  According to this characteristic structure, the threshing processed material by a handling cylinder flows down to the conveyance start end side along the inclination of a receiving net. Therefore, the threshing process thing by a handling cylinder can be leaked mainly from the conveyance start end side of a receiving net, and can be supplied intensively to the conveyance start end side of a selection part.

  The further characteristic structure of the threshing apparatus which concerns on this invention exists in the said guide body being arrange | positioned under the conveyance termination | terminus side of the said receiving net.

  According to this characteristic configuration, the handling cylinder and the receiving net are inclined upward on the conveyance end side, so that a predetermined space is formed below the conveyance cylinder and the conveyance end side of the receiving net. Therefore, the guide body can be arranged compactly by effectively using the space.

  A further characteristic configuration of the threshing apparatus according to the present invention is such that a cutting device for cutting the threshing processed product is provided at the conveyance terminal portion of the handling barrel, and the cutting device is interposed at the conveyance terminal portion of the sorting unit. A drainage passage for discharging the threshing processed product to the outside of the machine is formed.

  According to this characteristic configuration, the threshing product from the sorting unit is discharged out of the machine through the discharge passage without going through the cutting device. Therefore, it is possible to prevent a horsepower loss caused by throwing the threshing product from the sorting unit into the cutting device.

  A further characteristic configuration of the threshing device according to the present invention is that the sorting unit includes a sheave case configured to be swingable, and the sheave case extends to a lower side of the cutting device. .

  According to this characteristic configuration, the sheave case becomes longer in the transport direction. Therefore, the sorting capability of the sorting unit, in particular, the processing capability for a large amount of threshing products can be improved.

Side surface sectional drawing which shows a threshing apparatus. Side surface sectional drawing which shows the rear part side of a threshing part. Front sectional drawing which shows the rear part of a threshing part. Side surface sectional drawing which shows the front part side of a selection part. Front sectional drawing which shows the front part of a selection part. Side surface sectional drawing which shows the left side part of the front part side of a selection part. Side surface sectional drawing which shows the right side part by the side of the front part of a selection part. The diagram which shows the power transmission path | route of a power transmission shaft. The top view which shows a 1st sieve line and a 2nd sieve line. The perspective sectional view showing the 1st sieve line and the 2nd sieve line. Side surface sectional drawing which shows the rear part side of a selection part. The top view which shows a 1st Strollac, a 2nd Strollac, and a 3rd Strollac. The perspective sectional view which shows a 1st Strollac, a 2nd Strollac, and a 3rd Strollack.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  First, the whole structure of a threshing apparatus will be described with reference to FIG. In the following description, in the threshing apparatus, the conveyance direction of the threshing product is the front-rear direction, the conveyance start end direction is the front direction, and the conveyance end side direction is the rear direction.

  As shown in FIG. 1, the threshing apparatus threshs and sorts the cereal straw. The threshing apparatus includes a threshing unit 1 and a sorting unit 2. Incidentally, the threshing apparatus is provided in the ordinary combine in this embodiment, but may be provided in the self-decomposing combine.

  The threshing unit 1 threshs the cereal. The threshing unit 1 includes a handling cylinder 3 for threshing threshing. The handling cylinder 3 is rotatably supported by the handling chamber 4 via a rotation shaft 3a in the front-rear direction. Further, the threshing unit 1 is provided with a receiving net 5 for letting a threshing processed product by the handling cylinder 3 leak.

  The handling cylinder 3 and the receiving net 5 are inclined upward toward the rear end in a side view. The inclination of the handling cylinder 3 and the receiving net 5 forms an acute angle. A cutting device 34 is provided at the rear end of the handling cylinder 3. In addition, below the receiving net | network 5, the guide plate 35 mentioned later in detail is provided.

  The cutting device 34 cuts the threshing processed product. That is, the cutting device 34 cuts the threshing processed product with the rotary blade and the fixed blade. The cutting device 34 is charged with a threshing processed product such as waste from the rear end of the handling cylinder 3. Thereafter, the processed threshing product input to the cutting device 34 is cut by the cutting device 34 and then discharged from the discharge port 34a of the cutting device 34 to the outside of the machine.

  The sorting unit 2 sorts the threshing processed product (the threshing processed product leaked from the receiving net 5). The sorting unit 2 includes a swing sorting device 6, a red pepper 7, a first collecting unit 8, and a second collecting unit 9. The details of Kara 7 will be described later.

  The swing sorting device 6 swings and sorts the threshing processed product (the threshing processed product leaked from the receiving net 5). The swing sorting device 6 includes a sheave case 10, a first grain pan 11, a first sieve line 12 and a second sieve line 13, a second grain pan 14, a chaff sheave 15, a first Strollac 16, A second Strollac 17 and a third Strollac 18 and a Glen sieve 19 are provided. The first sieving wire 12 and the second sieving wire 13, and the first Strollac 16, second Strollac 17 and third Strollac 18 will be described in detail later.

  The sheave case 10 is configured to be swingable. That is, the sheave case 10 is swung in the front-rear direction by the eccentric cam type rocking mechanism 20. The sheave case 10 includes a first gren pan 11, a first sieving line 12, a second sieving line 13, a second gren pan 14, a chaff sheave 15, a first strollac 16, a second stroller 17 and Three Strollacs 18 and a Glen sieve 19 are provided. Accordingly, the first Glen pan 11, the first sieve line 12 and the second sieve line 13, the second Glen pan 14, the chaff sheave 15, the first Strollac 16, the second Strollac 17 and the third Strollac 18, and the Glen Sheave 19 are It swings with the sheave case 10 in the front-rear direction. The sheave case 10 can also be configured to extend to the lower side of the cutting device 34 (the position of the two-dot chain line shown in FIGS. 1 and 2). Thereby, the loss of a grain can be reduced.

  The first gren pan 11 sorts the threshing product by specific gravity. In other words, the first gren pan 11 swings in the front-rear direction together with the sheave case 10 so that the processed threshing material is conveyed in the rearward direction, and is divided into upper and lower layers such as sawdust having a small specific gravity and grains having a large specific gravity. To do. And the 1st Glen pan 11 is formed in the substantially wave shape in side view. The first sieving wire 12 is fixed to the waveform portion located on the most rear end side among the waveform portions in the first Glen pan 11. The first gren pan 11 is provided on the front end side of the sheave case 10 (only the front end portion of the sheave case 10). That is, the first Glen pan 11 is formed shorter than the second Glen pan 14 in a side view.

  The chaff sheave 15 sorts out the threshing product. That is, the chaff sheave 15 is provided with a plurality of angle-adjustable chaff flip plates 15a that are aligned at a predetermined interval in the front-rear direction. Then, the chaff sheave 15 swings in the front-rear direction together with the sheave case 10 to convey the wastes and the like that have not leaked backward while allowing grains to leak from between the cha-flip plates 15a. The angle of the char flip plate 15a is adjusted by an angle adjusting unit (not shown).

  Further, the chaff sheave 15 is inclined upward toward the rear end in a side view. The chaff sheave 15 is provided behind the second Glen pan 14. That is, the chaff sheave 15 is provided below the first sieve line 12 and the second sieve line 13. In other words, the chaff sheave 15 is provided behind the tang 7 in the sheave case 10.

  The second gren pan 14 sorts the threshing product by specific gravity. In other words, the second glen pan 14 swings in the front-rear direction together with the sheave case 10 so as to divide the threshing product into the upper and lower layers, such as sawdust having a small specific gravity and grains having a large specific gravity, etc. To do. The second Glen pan 14 is formed in a substantially wave shape in a side view. A corrugated portion 14 a deeper than other corrugated portions in the second Glen pan 14 is formed on the front end side of the second Glen pan 14. That is, the waveform portion 14 a is formed at the front end portion (front end portion) of the second Glen pan 14.

  The second Glen pan 14 is provided below the first Glen pan 11. That is, a first Glen pan 11 different from the second Glen pan 14 is provided above the second Glen pan 14. Further, the second Glen pan 14 and the chaff sheave 15 are arranged at substantially the same height. Then, the rear end portion of the second Glen pan 14 and the front end portion of the chaff sheave 15 (the chi-flip plate 15a positioned closest to the front end side) overlap in plan view.

  Glen sieve 19 sorts out the threshing product. That is, the grain sieve 19 conveys the grain with branches and the like that has not leaked backward with the sawdust and the like as the second thing while letting the single grain as the first thing. In addition, the Glen sheave 19 is provided behind the Tang Dynasty 7 and below the chaff sheave 15. A convex portion 19 a that protrudes upward is provided on the front end side of the grain sieve 19. For example, the convex part 19a is comprised by the plate-shaped member bent so that it might protrude upward (substantially mountain shape).

  The first recovery unit 8 recovers the single grain as the first thing. The first recovery unit 8 is provided below the front part of the sheave case 10.

  The second recovery unit 9 recovers the grain with branches and the like as a second thing. The second recovery part 9 is provided below the rear part of the sheave case 10.

  Next, the guide plate 35 will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, the guide plate 35 guides the threshing processed material leaked from the rear end side of the receiving net 5 to the front end side of the sorting unit 2. The guide plate 35 is formed in a substantially wave shape in a side view. That is, the guide plate 35 is formed so as to give a forward conveying action to the threshing processed product.

  Further, the guide plate 35 is inclined upward toward the rear end in a side view. The inclination of the guide plate 35 forms an acute angle. That is, the inclination angle of the guide plate 35 and the inclination angle of the handling cylinder 3 and the receiving net 5 are the same angle. The guide plate 35 is disposed below the rear end side of the receiving net 5. Of the front and rear end portions of the guide plate 35, the front end portion of the guide plate 35 is located below the front portion of the receiving net 5. The rear end portion of the guide plate 35 is located behind the rear end portion of the receiving net 5.

  Further, the guide plate 35 is fixed to the sheave case 10 via a stay 36. Accordingly, the guide plate 35 swings in the front-rear direction together with the sheave case 10. Instead of fixing the guide plate 35 to the sheave case 10, the guide plate 35 may be fixed to the threshing portion 1 side (for example, the receiving net 5, the side wall of the threshing portion 1, etc.).

  According to the configuration as described above, the threshing processed material leaked from the rear end side of the receiving net 5 flows down to the front end side along the inclination of the guide plate 35. In addition, since the guide plate 35 is formed in a substantially wave shape in a side view, a forward transporting action is imparted to the threshing processed product, so that the threshing processed product is transported forward. . Therefore, the threshing processed material leaked from the rear end side of the receiving net 5 can be sufficiently subjected to the sorting process by the sorting unit 2.

  Next, the Kara 7 will be described with reference to FIGS.

  As shown in FIGS. 4 to 7, the tang 7 includes a blade member 21, a fan case 22, a first air passage 23, and a second air passage 24.

  The blade member 21 is rotatably supported by the fan case 22 via a rotation shaft 21a in the left-right direction. That is, the blade member 21 is configured to be rotatable around the axis X in the left-right direction. In addition, the rotation direction of the blade member 21 is counterclockwise when viewed from the side (the rotation direction A shown in FIG. 4). And the blade member 21 is formed in the substantially circular arc shape recessed in the rotation direction upper side (direction opposite to the rotation direction A) in the side view. That is, the blade member 21 is formed in a substantially bow shape that swells to the upper side in the rotational direction (the side opposite to the rotational direction A) in a side view. In the present embodiment, a plurality of (for example, four) blade members 21 are arranged at equiangular intervals (for example, 90 degrees) around the axis X in the left-right direction in a side view. The blade member 21 is fixed to the rotating shaft 21a via a plurality of (for example, two) flange portions 21b formed in a substantially circular shape in a side view.

  The fan case 22 is configured to cover the blade member 21. The left and right sides of the fan case 22 are provided with suction ports 22a for sucking outside air.

  The suction port 22a is covered with an adjustment plate 25 so that its opening degree can be adjusted. The left adjustment plate 25 and the right adjustment plate 25 are connected by a single link rod 26. That is, the left and right adjustment plates 25 are configured to be swingable with the link rod 26 as a swing fulcrum. The left adjustment plate 25 is provided with a swing operation portion 27 for swinging the left and right adjustment plates 25.

  The swing operation unit 27 includes a guide hole 28 formed in the left adjustment plate 25, a guide shaft 29 inserted into the guide hole 28, and a nut 30 screwed into the guide shaft 29. Thus, when the left adjustment plate 25 swings along the guide shaft 29 via the guide hole 28, the right adjustment plate 25 also swings via the link rod 26. Thereby, the opening degree of the suction ports 22a on both the left and right sides is changed. That is, when the adjustment plates 25 on both the left and right sides swing through the link rod 26, the opening degree of the suction ports 22a on both the left and right sides is changed. In addition, by tightening the nut 30, the left adjustment plate 25 can be fixed at an arbitrary swinging position.

  In the first air passage 23, the sorting air supplied to the lower part of the sheave case 10 flows. The first air passage 23 is arranged below the Kara 7 and below the sheave case 10. That is, the first air passage 23 communicates with the lower part of the rear end side of the fan case 22. In addition, a guide plate 33 is provided below the front side of the chaff sheave 15 to guide the sorting air in the first air passage 23 upward in the rear side.

  The guide plate 33 is inclined upward in the rear end side in a side view. The guide plate 33 has an inclination angle α1 of an angle adjustment range β of a chi-flip plate 15a that is positioned on the most front end side among the plurality of char-flip plates 15a (hereinafter referred to as “front-end-side char flip plate”). Substantially coincides with the central angle α2. In other words, the inclination angle α1 of the guide plate 33 and the central angle α2 in the angle adjustment range β of the frontmost end side flip-flop plate 15a are substantially the same angle. In addition, it is preferable that the inclination angle α1 of the guide plate 33 and the central angle α2 in the angle adjustment range β of the front-most-side cha-flip plate 15a completely coincide (is the same angle).

  In the second air passage 24, the sorting air supplied to the upper part of the sheave case 10 flows. The second air passage 24 is arranged at the upper part of the Kara 7 and in front of the sheave case 10. That is, the second air passage 24 communicates with the upper part on the front end side of the fan case 22. The second air passage 24 is formed so as to extend in the forward direction and to make a U-turn in the backward direction, and supplies the selection air to the front end side of the sheave case 10. The upper part of the second air passage 24 is formed by an upward inclined air passage 24a that inclines upward on the rear end side. The sheave case 10 is provided with a third air passage 32 which will be described later in detail, through which the sorting air from the second air passage 24 flows.

  A power transmission shaft 31 to which power from the engine E is transmitted is disposed above the second air path 24 (see FIG. 8). That is, the power transmission shaft 31 is disposed at the upper part on the front end side of the upward inclined air passage 24 a of the second air passage 24. In addition, the power of the power transmission shaft 31 is transmitted to the handling cylinder 3, the Kara 7, and the like.

  The third air passage 32 is formed between the first Glen pan 11 and the second Glen pan 14. The third air passage 32 is formed in a substantially V shape in a side view by a downward inclined air passage 32a that is inclined downward toward the rear end side and an upward inclined air passage 32b that is inclined upward toward the rear end side. Yes.

  The inlet portion of the third air passage 32 (downward inclined air passage 32a) is provided across the front end side vertical wall (front wall) and the front end side lower wall of the sheave case 10. The inlet portion of the third air passage 32 (downward inclined air passage 32a) may be provided only on the front end side vertical wall (front wall) of the sheave case 10, or the front end side lower side of the sheave case 10. It may be provided only on the wall.

  Further, the outlet of the third air passage 32 (upwardly inclined air passage 32 b) is disposed below the rear end side of the first Glen pan 11. And the 2nd Glen pan 14 is provided in the lower part of the exit part of the 3rd air path 32 (upward inclination air path 32b). In particular, in the present embodiment, the front end portion of the second Glen pan 14 forms a part of the third air passage 32 (the bottom surface of the upward inclined air passage 32a).

  The inclination angle of the upward inclined air passage 32b of the third air passage 32 and the inclination angle of the first sieving line 12 and / or the second sieving line 13 are substantially the same. Furthermore, the inclination angle of the upward inclined air passage 32b of the third air passage 32 and the inclination angle of the upward inclined air passage 24a of the second air passage 24 are substantially the same.

  According to the above configuration, the sorting air is distributed to the lower part and the upper part of the sheave case 10 by the first air passage 23 and the second air passage 24 and supplied, so that the sorting air is sent from the lower part to the upper part of the sheave case 10 Can be spread. Then, by supplying the sorting air to the front end side of the sheave case 10 through the second air passage 24, the sorting air can be spread from the front end side to the rear end side of the sheave case 10. As a result of the second air passage 24 being formed so as to make a U-turn, the air passage length of the second air passage 24 becomes longer, and thus the flow of the selected air tends to be laminar. Therefore, it is possible to supply the sorting air having a stable flow.

  Next, the first sieve line 12 and the second sieve line 13 will be described with reference to FIGS. 9 and 10.

  As shown in FIGS. 9 and 10, the first sieving wire 12 and the second sieving wire 13 are juxtaposed in the front-rear direction at the rear end portion of the first gren pan 11. The first sieving line 12 and the second sieving line 13 are disposed above the second gren pan 14 and above the chaff sheave 15. That is, of the first sieving line 12 and the second sieving line 13, the second sieving line 13 is disposed above the chaff sheave 15 and overlaps with the chaff sheave 15 in plan view. A predetermined gap O is formed between the rear end portion of the first sieve line 12 and the front end portion of the second sieve line 13.

  The gap O overlaps with the front end side of the chaff sheave 15 in plan view. That is, the gap O overlaps with the rear end portion of the second Glen pan 14 in plan view.

  In place of the first sieving line 12 and the second sieving line 13, for example, a leakage selection unit other than the sieving line such as Strollac, sheet-metal punching type chaff sheave, mesh-like or sheet-metal punching type grain sheave may be employed. it can. However, from the viewpoint of increasing the amount of leakage from the leakage selection unit, it is preferable to employ a sieve line.

  The first sieve line 12 is formed in a substantially wave shape in a side view. For example, the 1st sieve line 12 is comprised by the piano wire. And the 1st sieve line 12 inclines in the rear end side raise in the side view. The rear end side of the first sieve line 12 is provided at a position higher than the front end side of the second sieve line 13. The first sieving line 12 is provided at the rear end of the first gren pan 11. That is, the first sieving line 12 is fixed to the rear end portion (the corrugated portion located closest to the rear end side) of the first grain pan 11.

  The second sieving line 13 is formed in a substantially wave shape in a side view. For example, the 2nd sieve line 13 is comprised by the piano wire. And the 2nd sieve line 13 inclines in the rear end side raise in the side view. The inclination angle of the second sieving line 13 is larger than the inclination angle of the first sieving line 12. Further, the second sieving line 13 is provided at a position higher than the first sieving line 12. Further, at least a part of the second sieving line 13 protrudes upward from the upper side portion of the sheave case 10. Further, the second sieving line 13 is disposed above the front end side of the chaff sheave 15, and at least a part thereof overlaps the front end side of the chaff sheave 15 in plan view. Furthermore, the second sieving line 13 is disposed above the first recovery unit 8 and at least a part thereof overlaps with the first recovery unit 8 in plan view.

  According to the above configuration, the first sieving wire 12 and the second sieving wire 13 are formed in a substantially wave shape, so that the first sieving wire 12 and the second sieving wire 13 feed the threshing product. Can be granted. Therefore, the first sieving line 12 and the second sieving line 13 can be selected while smoothly transporting the threshing product from the first gren pan 11.

  In addition, since the first sieve line 12 and the second sieve line 13 extend to above the chaff sheave 15, the chaff sheave 15 has a threshing processed product roughly selected by the first sieve line 12 and the second sieve line 13. Supplied. Therefore, the sorting load on the chaff sheave 15 can be reduced. If the sorting load applied to the chaff sheave 15 can be reduced, a large amount of crops can be sorted without increasing the size of the chaff sheave 15 and thus the threshing device.

  Next, the first Strollac 16, the second Strollac 17 and the third Strollac 18 will be described with reference to FIGS.

  As shown in FIGS. 11 to 13, the first Strollac 16 includes a plurality of first rack plates 16 a that are aligned at a predetermined interval D <b> 1 in the left-right direction. The first Strollac 16 is provided at the rear end of the chaff sheave 15. The rear end portion of the first Strollac 16 is disposed so as to overlap the second Strollac 17 (second rack plate fixing member 17b) in plan view.

  The second Strollac 17 is provided behind the first Strollac 16. The second stroller 17 includes a plurality of second rack plates 17a aligned at a predetermined interval D2 in the left-right direction, and a second rack plate fixing member to which front end portions of the plurality of second rack plates 17a are fixed. 17b and a second sieving wire 17c is provided between the adjacent second rack plates 17a. The rear end portion of the second Strollac 17 (second rack plate 17a) is disposed so as to overlap the front end portion of the third Strollac 18 (third rack plate fixing member 18b) in plan view.

  A second sieving wire 17c is fixed to the second rack plate fixing member 17b. That is, the second rack plate 17a is fixed to the lower surface of the second rack plate fixing member 17b, and the second sieving wire 17c is fixed to the upper surface of the second rack plate fixing member 17b.

  The third Strollac 18 is provided behind the second Strollac 17. The third Strollac 18 includes a plurality of third rack plates 18a aligned at a predetermined interval D3 in the left-right direction, and a third rack plate fixing member to which front end portions of the plurality of third rack plates 18a are fixed. 18b and a third sieving wire 18c between the adjacent third rack plates 18a.

  A third sieving wire 18c is fixed to the third rack plate fixing member 18b. That is, the third rack plate 18a is fixed to the lower surface of the third rack plate fixing member 18b, and the third sieve wire 18c is fixed to the upper surface of the third rack plate fixing member 18b.

  Here, as shown in FIG. 11, the second Strollac 17 and the third Strollac 18 are longer than the first Strollac 16 in the front-rear direction. And the 2nd Strollac 17 and the 3rd Strollac 18 are constituted by the same member. Moreover, the 2nd Strollac 17 and the 3rd Strollac 18 are arrange | positioned at the same height. The first Strollac 16 is disposed above the second Strollac 17 and the third Strollac 18. That is, of the first Strollac 16, the second Strollac 17, and the third Strollac 18, the first Strollac 16 is disposed highest.

  In addition, as shown in FIG. 12, the first Strollac 16 and the second Strollac 17 are arranged so as to overlap each other in plan view. And the 2nd Strollac 17 and the 3rd Strollac 18 are arranged so that it may mutually overlap in plane view. Further, the interval D2 between the plurality of second rack plates 17a and the interval D3 between the plurality of third rack plates 18a are the same. The interval D1 between the plurality of first rack plates 16a is larger than the interval D2 between the plurality of second rack plates 17a and the interval D3 between the plurality of third rack plates 18a.

  According to the above configuration, the threshing processed product from the rear end portion of the chaff sheave 15 falls from the first Strollac 16 to the second Strollac 17, and the lump of the threshing processed product is formed by the impact at the time of the fall. Unravel. Then, the loosened threshing product is sorted by the third Strollac 18 in addition to the second Strollac 17. Therefore, the recovery rate of the grains can be improved with respect to the threshing processed product from the rear end portion of the chaff sheave 15.

  Here, returning to FIGS. 1 and 2, a discharge passage 37 is formed at the rear end of the sorting unit 2. The discharge passage 37 discharges the threshing processed product outside the machine without using the cutting device 34. The discharge passage 37 is formed between the cutting device 34 and the sheave case 10. Thereby, the threshing processed material from the selection part 2 (the 1st Strollac 16, the 2nd Strollac 17, and the 3rd Strollac 18) is discharged outside the machine by the discharge passage 37 without passing through the cutting device 34. Therefore, it is possible to prevent a horsepower loss caused by throwing the threshing processed product from the sorting unit 2 into the cutting device 34.

  INDUSTRIAL APPLICABILITY The present invention can be used for a threshing apparatus including a handling cylinder, a receiving net that causes a threshing product to be leaked from the handling cylinder, and a selection unit that selects a threshing process product that has leaked from the receiving net.

3 Handling cylinder 5 Receiving net 2 Sorting part 35 Guide plate (guide body)
10 Sheave case 34 Cutting device 37 Discharge passage

Claims (7)

A barrel,
A receiving net for leaking the threshing product by the handling cylinder;
A sorting unit for sorting threshing products leaked from the receiving net;
A threshing apparatus comprising: a guiding body that guides a threshing product that has leaked from a conveyance end side of the receiving net to a conveyance start end side of the sorting unit.   The threshing apparatus according to claim 1, wherein the guide body is inclined upward toward the conveyance end in a side view. The sorting unit includes a sheave case configured to be swingable,
The threshing apparatus according to claim 1 or 2, wherein the guide body is fixed to the sheave case.   The threshing device according to any one of claims 1 to 3, wherein the handling cylinder and the receiving net are inclined upward in a conveyance end side in a side view.   The threshing apparatus according to claim 4, wherein the guide body is disposed below a conveyance terminal side of the receiving net. A cutting device for cutting the threshing processed product is provided at the conveyance end of the handling cylinder,
The threshing device according to claim 4 or 5, wherein a discharge passage for discharging the threshing processed product to the outside of the machine without passing through the cutting device is formed in the conveyance end portion of the sorting unit. The sorting unit includes a sheave case configured to be swingable,
The threshing device according to claim 6, wherein the sheave case extends to a lower side of the cutting device.

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