A threshing device for a combined oilseed rape harvester

Abstract

The application discloses a threshing device of a rapeseed combine harvester and relates to the rapeseed harvesting field. The threshing device comprises a threshing cylinder and a threshing roller arranged in the threshing cylinder. The threshing cylinder is provided with a feeding port at one end bottom and a discharging port at the other end bottom. A plurality of material leakage holes are arranged at the bottom of the side wall of the threshing cylinder. A flow dividing device is arranged at the top of the threshing cylinder. The flow dividing device comprises an arc-shaped flow dividing pipe, a flow dividing feeding port and a flow dividing discharging port. An arc-shaped moving plate is arranged at one end of the arc-shaped flow dividing pipe close to the feeding port and penetrates through the arc-shaped flow dividing pipe and extends into the arc-shaped flow dividing pipe. A plurality of material moving components are arranged at the bottom of the arc-shaped moving plate. Air blowing components are arranged on the outer wall of the arc-shaped flow dividing pipe. A plurality of driving cylinders are arranged on the outer wall of the threshing cylinder and used for driving the arc-shaped moving plate to move. The device can effectively avoid the incomplete threshing of rapeseed caused by the entanglement of roots, stems and leaves of the rapeseed.

Description

Technical Field

[0001] This invention relates to the technical field of rapeseed harvesting, specifically to a threshing device for a rapeseed combine harvester. Background Technology

[0002] Rapeseed is a type of crop. After rapeseed matures, it needs to be harvested and the rapeseed seeds separated. Rapeseed is one of the main raw materials for oil extraction. Combine harvesters can harvest, thresh, separate, clean and collect mature rapeseed, greatly improving the efficiency of rapeseed harvesting for farmers.

[0003] According to patent application CN200980109931.2, the provided threshing device for a combine harvester includes a threshing unit with threshing teeth of a threshing drum arranged in a first spiral along an axis aligned with the drum. Furthermore, the aforementioned threshing teeth are arranged in a phase-differentiated manner from adjacent threshing teeth on the axial direction of the threshing drum, and are only partially repeated when viewed along that axial direction. Additionally, a series of adjacent threshing teeth, partially repeating each other on the axial direction of the threshing drum, are arranged in a second spiral. This second spiral is coaxial with the first spiral but faces away from it, and has a larger pitch than the first spiral. The product in the aforementioned patent effectively prevents clogging by threshed material and allows for adjustment of the threshing time.

[0004] The product in the aforementioned patent can effectively prevent clogging by the threshing material and can adjust the threshing time. However, there is a possibility that the threshing may not be complete due to the rapeseed roots, stems and leaves becoming too entangled. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a threshing device for a rapeseed combine harvester to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a threshing device for a rapeseed combine harvester, comprising a threshing cylinder and a threshing roller disposed within the threshing cylinder, wherein a feed inlet is provided at the bottom of one end of the threshing cylinder and a discharge outlet is provided at the bottom of the other end, a plurality of material leakage holes are provided at the bottom of the side wall of the threshing cylinder, and a diversion device is provided at the top of the threshing cylinder;

[0007] The diversion device includes an arc-shaped diversion pipe embedded in the outer wall of the threshing cylinder, multiple diversion inlets linearly arranged through the inner wall of the arc-shaped diversion pipe, a diversion discharge port located at the end of the arc-shaped diversion pipe away from the inlet, an arc-shaped moving plate located near the inlet of the arc-shaped diversion pipe with one end penetrating the arc-shaped diversion pipe and extending into the arc-shaped diversion pipe, multiple material moving components linearly arranged at the bottom of the arc-shaped moving plate, an air blowing component located on the outer wall of the arc-shaped diversion pipe with its actuating end extending into the arc-shaped diversion pipe, and multiple drive cylinders located on the outer wall of the threshing cylinder for driving the arc-shaped moving plate to move. The multiple material moving components correspond one-to-one with the multiple diversion inlets, and the air blowing component corresponds to the position of the diversion discharge port.

[0008] The material moving component includes a toggle assembly and a pneumatic assembly sequentially disposed at the bottom of the arc-shaped moving plate along the direction away from the feed inlet.

[0009] Preferably, the actuating assembly includes a plurality of L-shaped actuating blocks arranged in a ring array on the inner wall of the arc-shaped moving plate, the included angles of the L-shaped actuating blocks being hinged to the inner wall of the arc-shaped moving plate. In this preferred embodiment, the actuating assembly facilitates the actuation of the rapeseed, so that some of the rapeseed can enter the arc-shaped diversion pipe through the diversion inlet.

[0010] Preferably, the pneumatic assembly includes an arc-shaped airbag disposed on the inner wall of the arc-shaped moving plate, a plurality of elongated through holes passing through the outer wall of the arc-shaped diverting pipe, and a first air source pipe having one end connected to the arc-shaped airbag via the elongated through holes. In this preferred embodiment, the pneumatic assembly facilitates stable movement of rapeseed within the arc-shaped diverting pipe and simultaneously compresses the rapeseed, producing a threshing effect.

[0011] Preferably, the feed inlet is provided with a plurality of diverting teeth arranged in a circular array, and the diverting teeth are inclined. In this preferred embodiment, the diverting teeth facilitate the diversion of a portion of rapeseed that is being transferred between the threshing roller and the threshing cylinder and is in close contact with the threshing cylinder into the arc-shaped diverting pipe.

[0012] Preferably, the air-blowing component includes an arc-shaped airflow pipe disposed on the outer wall of the arc-shaped diverter pipe, a plurality of first air-blowing pipes and a second air-blowing pipe extending from one end into the arc-shaped diverter pipe, and a second air source pipe connected to the outer wall of the arc-shaped airflow pipe at one end. In this preferred embodiment, the air-blowing component facilitates airflow agitation of the rapeseed to aid in threshing.

[0013] Preferably, the exhaust end of the first air-blowing pipe is connected to the inner wall of the arc-shaped diverter pipe, and the exhaust end of the second air-blowing pipe extends into the arc-shaped diverter pipe. In this preferred embodiment, the first air-blowing pipe facilitates the air-blowing of rapeseed discharged through the arc-shaped diverter pipe for threshing, and the second air-blowing pipe facilitates the air-blowing of rapeseed between the threshing roller and the threshing cylinder for threshing.

[0014] Preferably, the device further includes a fluffing device disposed on the outer wall of the threshing cylinder and located on the side of the diversion device near the feed inlet. The fluffing device includes a base tube communicating with the threshing cylinder, a rotating ring whose outer wall is connected to the inner wall of the base tube via a bearing, a plurality of fluffing teeth arranged in a ring array on the inner wall of the rotating ring, and a driving component disposed on the outer wall of the base tube for driving the rotating ring to rotate. In this preferred embodiment, the fluffing device facilitates the fluffing treatment of the rapeseed between the threshing cylinder and the threshing roller, thereby facilitating subsequent secondary extrusion and enhancing the threshing effect.

[0015] Preferably, the driving component includes a gear ring disposed on the outer wall of the rotating ring, a drive motor disposed on the outer wall of the base tube, and a drive gear disposed on the actuating end of the drive motor and meshing with the gear ring. In this preferred embodiment, the driving component facilitates stable rotation of the rotating ring.

[0016] Preferably, the end of the threshing roller near the discharge port is rotatably connected to the threshing cylinder and extends outside the threshing cylinder. A central collecting device is provided at the end of the threshing roller near the discharge port. The central collecting device includes a funnel groove with one end connected to the end of the threshing roller and the other end extending into the threshing roller, and a plurality of sieve holes arranged in a ring array on the outer wall of the threshing roller. One end of each sieve hole is connected to the outer wall of the threshing roller, and the other end is connected to the inner wall of the funnel groove. In this preferred embodiment, the central collecting device facilitates the collection of rapeseed through the threshing roller.

[0017] Preferably, a collecting component is provided at one end of the threshing cylinder near the discharge port. The collecting component includes a collecting and conveying pipe with one end connected to the end of the threshing cylinder and sleeved on the outer wall of the threshing roller. In this preferred embodiment, the collecting component facilitates the centralized collection of rapeseed that has been screened out by the central collecting device.

[0018] In summary, the present invention has the following main beneficial effects:

[0019] The device in this invention effectively avoids the possibility of incomplete threshing of rapeseed due to excessive entanglement of roots, stems and leaves by rationally diverting the flow.

[0020] In this invention, a diversion device is used to achieve reasonable diversion during rapeseed threshing. The diversion device uses diversion teeth to easily dig a portion of the rapeseed that is being transported between the threshing roller and the threshing cylinder and is in close contact with the threshing cylinder into an arc-shaped diversion pipe. A stirring component facilitates the stirring of the rapeseed so that a portion of the rapeseed can enter the arc-shaped diversion pipe through the diversion inlet. A pneumatic component facilitates the stable movement of the rapeseed within the arc-shaped diversion pipe and can also squeeze the rapeseed to produce a threshing effect. An air blowing component facilitates the air blowing of the rapeseed to facilitate threshing. A first air blowing pipe facilitates the threshing air blowing of the rapeseed discharged through the arc-shaped diversion pipe, and a second air blowing pipe facilitates the threshing air blowing of the rapeseed between the threshing roller and the threshing cylinder.

[0021] The loosening device facilitates the loosening of the rapeseed between the threshing cylinder and the threshing roller, so as to facilitate subsequent secondary extrusion and enhance the threshing effect. The drive component in the loosening device facilitates the stable rotation of the belt's rotating ring.

[0022] The central collecting device facilitates the collection of rapeseed through the threshing rollers, and the collecting components facilitate the centralized collection of rapeseed that has been screened out by the central collecting device. Attached Figure Description

[0023] Figure 1 This is an isometric view of the overall structure of the present invention.

[0024] Figure 2 This is an exploded view of the overall structure of the present invention.

[0025] Figure 3 This is an exploded view of the diversion device structure of the present invention.

[0026] Figure 4 This is an exploded view of the structure of the fluffing device of the present invention.

[0027] Figure 5 This is a top view of the overall structure of the present invention.

[0028] Figure 6 This is a cross-sectional view of the overall structure of the present invention.

[0029] Figure 7 This is a cross-sectional view of the air blowing component structure of the present invention.

[0030] Figure 8 This is an enlarged view of the structure at point A of the present invention.

[0031] Figure Descriptions: 10. Threshing cylinder; 101. Feed inlet; 102. Discharge outlet; 103. Leakage hole; 11. Threshing roller; 20. Diverting device; 21. Arc-shaped diverting pipe; 211. Diverting inlet; 2111. Diverting teeth; 212. Diverting outlet; 22. Arc-shaped moving plate; 23. Material moving component; 231. Actuating assembly; 2311. L-shaped actuating block; 232. Pneumatic assembly; 2321. Arc-shaped airbag; 2322. Long strip-shaped through hole; 2323. 24. First air source pipe; 24. Air blowing component; 241. Arc-shaped airflow pipe; 242. First air blowing pipe; 243. Second air blowing pipe; 244. Second air source pipe; 25. Drive cylinder; 30. Fluffing device; 31. Base pipe; 32. Rotating ring; 33. Fluffing teeth; 34. Drive component; 341. Gear ring; 342. Drive motor; 343. Drive gear; 40. Central collection device; 41. Funnel trough; 42. Screen hole; 43. Collection component; 431. Collection and transmission pipe. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of the present invention will now be described. Example

[0034] Please refer to the appendix carefully. Figure 1 , 2As shown in Figures 3, 5, 7, and 8, in a preferred embodiment of the present invention, a threshing device for a rapeseed combine harvester includes a threshing cylinder 10 and a threshing roller 11 disposed within the threshing cylinder 10. The threshing cylinder 10 has a feed inlet 101 at one bottom and a discharge outlet 102 at the other bottom. The bottom of the side wall of the threshing cylinder 10 has multiple material leakage holes 103. The top of the threshing cylinder 10 has a diversion device 20. The diversion device 20 includes an arc-shaped diversion pipe 21 embedded in the outer wall of the threshing cylinder 10, multiple diversion feed inlets 211 linearly arrayed and passing through the inner wall of the arc-shaped diversion pipe 21, and a diversion pipe 21 located within the arc-shaped diversion pipe 21. The system includes a diversion discharge port 212 located away from the feed inlet 101; an arc-shaped moving plate 22 located near the feed inlet 101 at one end of the arc-shaped diversion pipe 21, extending through the arc-shaped diversion pipe 21 and into the arc-shaped diversion pipe 21 at one end; multiple material moving components 23 linearly arranged at the bottom of the arc-shaped moving plate 22; an air blowing component 24 located on the outer wall of the arc-shaped diversion pipe 21 with its actuating end extending into the arc-shaped diversion pipe 21; and multiple drive cylinders 25 located on the outer wall of the threshing cylinder 10 for driving the arc-shaped moving plate 22 to move. The multiple material moving components 23 correspond one-to-one with the multiple diversion discharge ports 211. The air blowing component 24 and the... The position of the diversion discharge port 212 corresponds to the material moving component 23, which includes a toggle assembly 231 and a pneumatic assembly 232 arranged sequentially at the bottom of the arc-shaped moving plate 22 in a direction away from the feed port 101. The toggle assembly 231 includes a plurality of L-shaped toggle blocks 2311 arranged in a ring array on the inner wall of the arc-shaped moving plate 22, with the included angle of the L-shaped toggle blocks 2311 hinged to the inner wall of the arc-shaped moving plate 22. The pneumatic assembly 232 includes an arc-shaped airbag 2321 arranged on the inner wall of the arc-shaped moving plate 22, a plurality of elongated through holes 2322 passing through the outer wall of the arc-shaped diversion pipe 21, and one end of the arc-shaped airbag 232 connected to the elongated through holes 2322. The first air source pipe 2323 of 1 has a plurality of diversion teeth 2111 arranged in a ring array at the feed inlet 211. The diversion teeth 2111 are inclined. The air blowing component 24 includes an arc-shaped airflow pipe 241 disposed on the outer wall of the arc-shaped diversion pipe 21, a plurality of first air blowing pipes 242 and second air blowing pipes 243 connected at one end to the arc-shaped airflow pipe 241 and extending to the arc-shaped diversion pipe 21 at the other end, and a second air source pipe 244 connected at one end to the outer wall of the arc-shaped airflow pipe 241. The exhaust end of the first air blowing pipe 242 is connected to the inner wall of the arc-shaped diversion pipe 21, and the exhaust end of the second air blowing pipe 243 extends to the arc-shaped diversion pipe 21.

[0035] It should be noted that in this embodiment, the rapeseed harvested by the combine harvester enters the threshing roller 11 and the threshing cylinder 10 through the feed inlet 101. The threshing roller 11 can be driven by a motor. The rotating threshing roller 11 conveys and squeezes the rapeseed in the threshing cylinder 10. The rapeseed and broken rapeseed in the rapeseed are discharged out of the threshing cylinder 10 through the discharge hole 103. At this time, the screening mechanism in the combine harvester screens the rapeseed and broken rapeseed.

[0036] When rapeseed is conveyed in the threshing cylinder 10, it passes through the loosening device 30, the diversion device 20 and the central collection device 40 in sequence. When the rapeseed passes through the loosening device 30, the loosening device 30 loosens the initially compacted rapeseed to facilitate subsequent secondary extrusion and enhance the threshing effect. When the rapeseed passes through the diversion device 20, some rapeseed will enter the diversion device 20, and the remaining rapeseed will continue to be extruded and threshed between the threshing roller 11 and the threshing cylinder 10. When the rapeseed passes through the central collection device 40, both the threshing cylinder 10 and the threshing roller 11 will screen out the rapeseed to ensure that the rapeseed is completely screened out.

[0037] When the diversion device 20 is working, when the rapeseed reaches the position of the diversion inlet 211, the diversion teeth 2111 will dig the compacted rapeseed, and some rapeseed will enter the diversion inlet 211. At the same time, the drive cylinder 25 drives the arc-shaped moving plate 22 to move. The arc-shaped moving plate 22 drives the agitator 231 and the pneumatic component 232 to move. The agitator 231 facilitates the diversion of rapeseed into the arc-shaped diversion tube 21, and the pneumatic component 232 facilitates the stable movement of rapeseed in the arc-shaped diversion tube 21. At the same time, it can also squeeze the rapeseed to assist in threshing.

[0038] When the rapeseed re-enters the threshing cylinder 10 through the diversion discharge port 212, the air blowing component 24 can simultaneously thresh the rapeseed discharged through the arc-shaped diversion pipe 21 and the rapeseed between the threshing roller 11 and the threshing cylinder 10.

[0039] Furthermore, when the actuating component 231 is working, when the arc-shaped moving plate 22 moves toward the discharge port 102, the L-shaped actuating block 2311 drives the rapeseed to move; when the arc-shaped moving plate 22 moves toward the feed port 101, the L-shaped actuating block 2311 rotates around its hinge point to avoid driving the rapeseed to move.

[0040] Furthermore, when the pneumatic assembly 232 is working, the first air source pipe 2323 is connected to the air source system. When the arc-shaped moving plate 22 moves toward the discharge port 102, the air source system inputs pressurized gas into the first air source pipe 2323. The arc-shaped airbag 2321 expands and squeezes the rapeseed, and drives the rapeseed to move on the inner wall of the arc-shaped diversion pipe 21. When the arc-shaped moving plate 22 moves toward the feed port 101, the gas in the arc-shaped airbag 2321 is discharged from the first air source pipe 2323 through the air source system.

[0041] Furthermore, when the air blowing component 24 is working, the second air source pipe 244 is connected to the air source system. Pressurized gas enters through the second air source pipe 244, passes through the arc-shaped airflow pipe 241, and is discharged through the first air blowing pipe 242 and the second air blowing pipe 243.

[0042] Please refer to the appendix carefully. Figure 2 , 4 As shown, in another preferred embodiment of the present invention, a fluffing device 30 is further provided on the outer wall of the threshing cylinder 10 and located on the side of the diversion device 20 near the feed inlet 101. The fluffing device 30 includes a base tube 31 communicating with the threshing cylinder 10, a rotating ring 32 whose outer wall is connected to the inner wall of the base tube 31 by a bearing, a plurality of fluffing teeth 33 arranged in a ring array on the inner wall of the rotating ring 32, and a driving component 34 provided on the outer wall of the base tube 31 for driving the rotating ring 32 to rotate. The driving component 34 includes a toothed ring 341 provided on the outer wall of the rotating ring 32, a driving motor 342 provided on the outer wall of the base tube 31, and a driving gear 343 provided on the actuating end of the driving motor 342 and meshing with the toothed ring 341.

[0043] It should be noted that, in this embodiment, when the fluffing device 30 is working, the rotation direction of the rotating ring 32 can be opposite to the rotation direction of the threshing roller 11. The rotating ring 32 fluffs and moves the initially compacted rapeseed through the fluffing teeth 33.

[0044] Furthermore, when the drive component 34 is working, the drive motor 342 drives the rotating ring 32 to rotate through the drive gear 343 and the gear ring 341;

[0045] Furthermore, the loose teeth 33 can be made of elastomer to prevent rapeseed from getting stuck on the loose teeth 33.

[0046] Please refer to the appendix carefully. Figure 6 As shown, in another preferred embodiment of the present invention, the threshing roller 11 is rotatably connected to the threshing cylinder 10 and extends to the outside of the threshing cylinder 10 at one end near the discharge port 102. The threshing roller 11 is provided with a central collecting device 40 at one end near the discharge port 102. The central collecting device 40 includes a funnel groove 41 with one end connected to the end of the threshing roller 11 and the other end extending into the threshing roller 11, and a plurality of sieve holes 42 arranged in a ring array on the outer wall of the threshing roller 11. One end of the sieve holes 42 is connected to the outer wall of the threshing roller 11 and the other end is connected to the inner wall of the funnel groove 41. The threshing cylinder 10 is provided with a collecting component 43 at one end near the discharge port 102. The collecting component 43 includes a collecting and conveying pipe 431 with one end connected to the end of the threshing cylinder 10 and sleeved on the outer wall of the threshing roller 11.

[0047] It should be noted that, in this embodiment, when the central collecting device 40 is working, rapeseed and rapeseed residue enter the funnel trough 41 through the screen hole 42, and move from the small diameter to the large diameter in the funnel trough 41 until they enter the collection and transmission pipe 431. The rapeseed and rapeseed residue discharged through the collection and transmission pipe 431 enter the screening mechanism in the combine harvester for screening.

[0048] The working principle of this invention is as follows:

[0049] In this invention, all electrical components are operated by a PLC controller;

[0050] The rapeseed harvested by the combine harvester enters the threshing roller 11 and threshing cylinder 10 through the feed inlet 101. The threshing roller 11 can be driven by a motor. The rotating threshing roller 11 conveys and squeezes the rapeseed in the threshing cylinder 10. The rapeseed and broken rapeseed in the rapeseed are discharged out of the threshing cylinder 10 through the discharge hole 103. At this time, the screening mechanism in the combine harvester screens the rapeseed and broken rapeseed.

[0051] When rapeseed is conveyed in the threshing cylinder 10, it passes through the loosening device 30, the diversion device 20 and the central collection device 40 in sequence. When the rapeseed passes through the loosening device 30, the loosening device 30 loosens the initially compacted rapeseed to facilitate subsequent secondary extrusion and enhance the threshing effect. When the rapeseed passes through the diversion device 20, some rapeseed will enter the diversion device 20, and the remaining rapeseed will continue to be extruded and threshed between the threshing roller 11 and the threshing cylinder 10. When the rapeseed passes through the central collection device 40, both the threshing cylinder 10 and the threshing roller 11 will screen out the rapeseed to ensure that the rapeseed is completely screened out.

[0052] When the diversion device 20 is working, when the rapeseed reaches the position of the diversion inlet 211, the diversion teeth 2111 will dig the compacted rapeseed, and some rapeseed will enter the diversion inlet 211. At the same time, the drive cylinder 25 drives the arc-shaped moving plate 22 to move. The arc-shaped moving plate 22 drives the agitator 231 and the pneumatic component 232 to move. The agitator 231 facilitates the diversion of rapeseed into the arc-shaped diversion tube 21, and the pneumatic component 232 facilitates the stable movement of rapeseed in the arc-shaped diversion tube 21. At the same time, it can also squeeze the rapeseed to assist in threshing.

[0053] When the rapeseed re-enters the threshing cylinder 10 through the diversion discharge port 212, the air blowing component 24 can simultaneously thresh the rapeseed discharged through the arc-shaped diversion pipe 21 and the rapeseed between the threshing roller 11 and the threshing cylinder 10.

[0054] When the actuating component 231 is working, when the arc-shaped moving plate 22 moves toward the discharge port 102, the L-shaped actuating block 2311 drives the rapeseed to move. When the arc-shaped moving plate 22 moves toward the feed port 101, the L-shaped actuating block 2311 rotates around its hinge point to avoid driving the rapeseed to move.

[0055] When the pneumatic assembly 232 is working, the first air source pipe 2323 is connected to the air source system. When the arc-shaped moving plate 22 moves toward the discharge port 102, the air source system inputs pressurized gas into the first air source pipe 2323. The arc-shaped airbag 2321 expands and squeezes the rapeseed, and drives the rapeseed to move on the inner wall of the arc-shaped diversion pipe 21. When the arc-shaped moving plate 22 moves toward the feed port 101, the gas in the arc-shaped airbag 2321 is discharged from the first air source pipe 2323 through the air source system.

[0056] When the air blowing component 24 is working, the second air source pipe 244 is connected to the air source system. Pressurized gas enters through the second air source pipe 244, passes through the arc-shaped airflow pipe 241, and is discharged through the first air blowing pipe 242 and the second air blowing pipe 243.

[0057] When the fluffing device 30 is working, the rotation direction of the rotating ring 32 can be opposite to the rotation direction of the threshing roller 11. The rotating ring 32 fluffs and moves the initially compacted rapeseed through the fluffing teeth 33.

[0058] When the drive component 34 is working, the drive motor 342 drives the rotating ring 32 to rotate through the drive gear 343 and the gear ring 341.

[0059] The loose teeth 33 can be made of elastomer to prevent rapeseed from getting stuck on the loose teeth 33;

[0060] When the central collecting device 40 is working, rapeseed and rapeseed residue enter the funnel trough 41 through the screen hole 42, and move from the small diameter to the large diameter in the funnel trough 41 until they enter the collection and transmission pipe 431. The rapeseed and rapeseed residue discharged through the collection and transmission pipe 431 enter the screening mechanism in the combine harvester for screening.

Claims

1. A threshing device for a rapeseed combine harvester, comprising a threshing cylinder (10) and a threshing roller (11) disposed within the threshing cylinder (10), characterized in that, The threshing cylinder (10) has a feed inlet (101) at one end and a discharge outlet (102) at the other end. The bottom of the side wall of the threshing cylinder (10) has multiple leakage holes (103). The top of the threshing cylinder (10) has a diversion device (20). The diversion device (20) includes an arc-shaped diversion pipe (21) embedded in the outer wall of the threshing cylinder (10), a plurality of diversion inlets (211) linearly arrayed through the inner wall of the arc-shaped diversion pipe (21), a diversion outlet (212) through the inner wall of the arc-shaped diversion pipe (21) and located at the end of the arc-shaped diversion pipe (21) away from the feed inlet (101), and an arc-shaped displacement device located at the end of the arc-shaped diversion pipe (21) near the feed inlet (101) and extending through the arc-shaped diversion pipe (21) into the arc-shaped diversion pipe (21). The moving plate (22), a plurality of material moving parts (23) linearly arrayed at the bottom of the arc-shaped moving plate (22), an air blowing part (24) disposed on the outer wall of the arc-shaped diversion pipe (21) and whose execution end extends into the arc-shaped diversion pipe (21), and a plurality of drive cylinders (25) disposed on the outer wall of the threshing cylinder (10) for driving the arc-shaped moving plate (22) to move, wherein the plurality of material moving parts (23) correspond one-to-one with the plurality of diversion inlet ports (211), and the air blowing part (24) corresponds to the position of the diversion outlet port (212); The material moving component (23) includes a toggle assembly (231) and a pneumatic assembly (232) sequentially disposed at the bottom of the arc-shaped moving plate (22) in a direction away from the feed inlet (101).

2. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, The actuation assembly (231) includes a plurality of L-shaped levers (2311) arranged in a ring array on the inner wall of the arc-shaped moving plate (22), and the included angle of the L-shaped levers (2311) is hinged to the inner wall of the arc-shaped moving plate (22).

3. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, The pneumatic assembly (232) includes an arc-shaped airbag (2321) disposed on the inner wall of the arc-shaped moving plate (22), a plurality of elongated through holes (2322) passing through the outer wall of the arc-shaped diversion pipe (21), and a first air source pipe (2323) connected to the arc-shaped airbag (2321) at one end through the elongated through holes (2322).

4. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, The feed inlet (211) is provided with a plurality of diversion teeth (2111) arranged in a ring array, and the diversion teeth (2111) are inclined.

5. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, The air blowing component (24) includes an arc-shaped airflow pipe (241) disposed on the outer wall of the arc-shaped diverter pipe (21), a plurality of first air blowing pipes (242) and a second air blowing pipe (243) connected at one end to the arc-shaped airflow pipe (241) and extending at the other end into the arc-shaped diverter pipe (21), and a second air source pipe (244) connected at one end to the outer wall of the arc-shaped airflow pipe (241).

6. The threshing device for a rapeseed combine harvester according to claim 5, characterized in that, The exhaust end of the first air blow pipe (242) is connected to the inner wall of the arc-shaped diverter pipe (21), and the exhaust end of the second air blow pipe (243) extends into the arc-shaped diverter pipe (21).

7. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, It also includes a fluffing device (30) disposed on the outer wall of the threshing cylinder (10) and located on the side of the diversion device (20) near the feed inlet (101). The fluffing device (30) includes a base tube (31) communicating with the threshing cylinder (10), a rotating ring (32) whose outer wall is connected to the inner wall of the base tube (31) by a bearing, a plurality of fluffing teeth (33) arranged in a ring array on the inner wall of the rotating ring (32), and a driving component (34) disposed on the outer wall of the base tube (31) for driving the rotating ring (32) to rotate.

8. The threshing device for a rapeseed combine harvester according to claim 7, characterized in that, The drive component (34) includes a gear ring (341) disposed on the outer wall of the rotating ring (32), a drive motor (342) disposed on the outer wall of the base tube (31), and a drive gear (343) disposed on the actuating end of the drive motor (342) and meshing with the gear ring (341).

9. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, The threshing roller (11) is rotatably connected to the threshing cylinder (10) at one end near the discharge port (102) and extends to the outside of the threshing cylinder (10). The threshing roller (11) is provided with a central collecting device (40) at one end near the discharge port (102). The central collecting device (40) includes a funnel groove (41) with one end connected to the end of the threshing roller (11) and the other end extending into the threshing roller (11), and a plurality of sieve holes (42) arranged in a ring array on the outer wall of the threshing roller (11). One end of the sieve hole (42) is connected to the outer wall of the threshing roller (11) and the other end is connected to the inner wall of the funnel groove (41).

10. The threshing device for a rapeseed combine harvester according to claim 1, characterized in that, The threshing cylinder (10) is provided with a collection component (43) at one end near the discharge port (102). The collection component (43) includes a collection and transmission pipe (431) with one end connected to the end of the threshing cylinder (10) and sleeved on the outer wall of the threshing roller (11).

Images