Residue-free rapeseed threshing machine

By designing a residue-free rapeseed thresher and utilizing the combination of scraper and striking components, the problem of residue in rapeseed threshers has been solved, ensuring the accuracy of variety selection and the effectiveness of the thresher.

CN120959055APending Publication Date: 2025-11-18XIANGYANG ACADEMY OF AGRICULTURAL SCIENCES
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Patent Information

Application Number
CN202511407651.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing rapeseed threshers often leave rapeseed residue after threshing, leading to mixing of different rapeseed varieties and affecting the accuracy of variety selection and the reliability of subsequent research.

Method used

A residue-free rapeseed threshing machine was designed. By using the rotating scraper and the striking component in combination, the residual rapeseed and rapeseed husks are pushed out from the top of the screening arc plate when the threshing roller rotates. The striking head prevents the rapeseed from remaining in the guide hopper and the discharge pipe.

Benefits of technology

It effectively prevents the mixing of different varieties of rapeseed, ensures the success of variety selection, and improves the performance of the thresher.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a residue-free rapeseed threshing machine which comprises a threshing shell, a transmission assembly is installed on one side of the threshing shell, a threshing assembly is installed in the threshing shell, a screening arc plate is fixedly installed in the threshing shell, a guide hopper is fixedly installed in the threshing shell, and the bottom of the guide hopper communicates with a discharging pipe. A rotating column can drive an abutting protruding block to rotate, so that a scraping plate moves on the outer side of the abutting protruding block through a movable sliding groove and a movable sliding block, the scraping plate is separated from the interior of the threshing roller, the end of the scraping plate makes contact with the top of a screening arc plate, and the threshing roller drives the scraping plate to rotate when rotating; therefore, the rapeseeds and the rapeseed hulls remaining on the top of the screening arc plate are pulled out through the discharging hopper, the rapeseeds and the rapeseed hulls are prevented from remaining on the top of the screening arc plate, it is guaranteed that when the rapeseeds of the next variety are threshed, the rapeseeds of the previous variety cannot be mixed into the rapeseeds of the next variety, and it is guaranteed that variety screening is successful.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rapeseed threshing, in particular to a residual-free rapeseed thresher. BACKGROUND

[0002] Rapeseed, also known as canola, is the seed of the oilseed crop Brassica napus, with long pods, more pods, and full grains. The oil content in rapeseed is 37.5%-46.3%. Depending on the type of oilseed rape, the oil content is slightly different. It is one of the main oil crops and nectar crops, and its seeds are one of the main varieties of oilseeds.

[0003] The existing rapeseed thresher often has some rapeseed residues in the machine after completing the rapeseed threshing task due to the lack of effective cleaning mechanism in the design. This residue not only affects the subsequent use efficiency of the machine itself, but more seriously, it will inevitably mix the rapeseed of the previous variety into the next variety during the rapeseed threshing of the next variety. Such mixed condition will undoubtedly directly affect the accuracy of variety selection and the reliability of subsequent research. SUMMARY

[0004] The purpose of the present application is to provide a residual-free rapeseed thresher to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a residual-free rapeseed thresher, comprising a threshing shell, a transmission assembly is installed on one side of the threshing shell, a threshing assembly is installed inside the threshing shell, a screening arc plate is fixedly installed inside the threshing shell, a material guide hopper is fixedly installed inside the threshing shell, a material falling pipe is communicated at the bottom of the material guide hopper, a storage hopper is movably installed inside the threshing shell, and a knocking assembly is installed inside the threshing shell.

[0006] Preferably, the transmission assembly comprises a driving motor, a driving wheel is fixedly installed at the output end of the driving motor, a transmission belt is installed on the outside of the driving wheel, a driven wheel is installed inside the transmission belt away from the driving wheel, a fixed seat is fixedly installed on the outside of the driving motor, and one side of the fixed seat is fixedly installed on one side of the threshing shell.

[0007] Preferably, the threshing assembly comprises a threshing roller, threshing protrusions are fixedly installed on the outside of the threshing roller, threshing arc blocks are fixedly installed on the outside of the threshing roller, a rotating column is rotatably installed inside the threshing roller, a pressing protrusion is fixedly installed on the outside of the rotating column, and a material scraping plate is slidably installed on the outside of the pressing protrusion.

[0008] Preferably, the scraping plate is movably arranged inside the threshing roller, one end of the threshing roller is fixedly connected with one side of the driven wheel, and one end of the rotating column is fixedly arranged with a hand knob penetrating through the threshing roller and the threshing shell.

[0009] Preferably, one side of the scraping plate is fixedly arranged with a moving sliding block, the inside of the abutting protruding block is arranged with a moving sliding groove, and the moving sliding block is slidingly arranged inside the moving sliding groove.

[0010] Preferably, the knocking assembly comprises an abutting ring and a sleeved frame, one end of the abutting ring is fixedly connected with one end of the driving wheel, the inside of the sleeved frame is fixedly arranged with a spring pressing ring, the inside of the spring pressing ring is slidingly arranged with a moving rod, one end of the moving rod is fixedly arranged with a spring pressing plate, the outside of the moving rod is sleevedly arranged with a return spring, one end of the moving rod is fixedly arranged with a moving plate, one side of the moving plate is fixedly arranged with a connecting rod, one end of the connecting rod away from the moving plate is fixedly arranged with a knocking head, one side of the moving plate away from the connecting rod is fixedly arranged with a connecting column, and one end of the connecting column away from the moving plate is fixedly arranged with an abutting block.

[0011] Preferably, one end of the abutting block away from the connecting column is in contact with the outside of the abutting ring.

[0012] Preferably, one side of the storage hopper is fixedly arranged with a handle, both sides of the threshing shell inner cavity are fixedly arranged with supporting sliding plates, and the storage hopper is slidingly arranged on the top of the supporting sliding plates.

[0013] Preferably, one side of the threshing shell is fixedly arranged with a protective cover, and the protective cover is sleevedly arranged outside the driving motor, the driven wheel, the transmission belt and the driving wheel.

[0014] Preferably, one side of the top of the threshing shell is communicated with a discharge hopper, and the other side of the top of the threshing shell is communicated with a feeding hopper.

[0015] Compared with the prior art, the beneficial effects of the present application are that the rotating column can drive the abutting protruding block to rotate, so that the scraping plate moves outside the abutting protruding block through the moving sliding groove and the moving sliding block, the scraping plate is separated from the inside of the threshing roller, the end of the scraping plate is in contact with the top of the screening arc plate, the scraping plate is driven to rotate when the threshing roller rotates, the rapeseed and rapeseed shells remaining on the top of the screening arc plate are pushed out through the discharge hopper, the top of the screening arc plate is prevented from remaining rapeseed and rapeseed shells, the next variety of rapeseed is prevented from being mixed with the previous variety of rapeseed when the next variety of rapeseed is threshed, and the successful variety selection is ensured.

[0016] In addition, the knocking head is moved by the connecting rod, the side wall of the blanking pipe is knocked by the knocking head, when the moving plate moves to the side close to the side wall of the blanking pipe, the moving rod is pulled by the moving plate to move in the inside of the sleeve frame, the reset spring is extruded by the spring pressing plate, the knocking head is reciprocated by the contact ring, the blanking pipe is reciprocally knocked, the rapeseed is prevented from remaining in the inside of the blanking pipe and the guide hopper, the inside of the threshing machine is ensured not to produce rapeseed, and the use effect of the lifting device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the application.

[0018] Figure 2 It is another perspective three-dimensional structure schematic diagram of the application.

[0019] Figure 3 It is a schematic diagram of the sectional structure of the threshing shell.

[0020] Figure 4 It is a schematic diagram of the sectional structure of the local part.

[0021] Figure 5 It is a schematic diagram of the sectional structure of the local part. Figure 4 It is an enlarged structure schematic diagram of A in the application.

[0022] Figure 6 It is a schematic diagram of the local appearance structure.

[0023] Figure 7 It is a sectional structure schematic diagram of the threshing roller.

[0024] Figure 8 It is an enlarged structure schematic diagram of B in the application. Figure 7 It is an enlarged structure schematic diagram of B in the application.

[0025] Figure 9 It is a schematic diagram of the sectional structure of the threshing roller.

[0026] In the figure: 1, threshing shell; 2, storage hopper; 3, handle; 4, discharge hopper; 5, hand crank; 6, feed hopper; 7, protective cover; 8, driven wheel; 9, transmission belt; 10, driving wheel; 11, driving motor; 12, fixed seat; 13, threshing roller; 14, threshing arc block; 15, threshing protrusion; 16, screening arc plate; 17, guide hopper; 18, material falling pipe; 19, moving chute; 20, pressing protrusion; 21, moving block; 22, material scraping plate; 23, supporting slide plate; 24, knocking head; 25, connecting rod; 26, connecting column; 27, abutting block; 28, moving plate; 29, spring pressing ring; 30, moving rod; 31, spring pressing plate; 32, reset spring; 33, abutting ring; 34, sleeving frame; 35, rotating column. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0028] Please refer to Figures 1-9The application provides a technical scheme: a residual-free rapeseed thresher, which comprises a threshing shell 1, a transmission assembly is installed on one side of the threshing shell 1, a threshing assembly is installed in the threshing shell 1, a screening arc plate 16 is fixedly installed in the threshing shell 1, a material guide hopper 17 is fixedly installed in the threshing shell 1, a material falling pipe 18 is communicated with the bottom of the material guide hopper 17, a storage hopper 2 is movably installed in the threshing shell 1, a knocking assembly is installed in the threshing shell 1, the transmission assembly comprises a driving motor 11, a driving wheel 10 is fixedly installed at the output end of the driving motor 11, a transmission belt 9 is sleeved and installed on the outer side of the driving wheel 10, a driven wheel 8 is sleeved and installed at one end of the transmission belt 9 away from the driving wheel 10, a fixed seat 12 is fixedly installed on the outer side of the driving motor 11, one side of the fixed seat 12 is fixedly installed on one side of the threshing shell 1, the threshing assembly comprises a threshing roller 13, threshing protrusions 15 are fixedly installed on the outer side of the threshing roller 13, threshing arc blocks 14 are fixedly installed on the outer side of the threshing roller 13, a rotating column 35 is rotatably installed in the threshing roller 13, a pressing protrusion 20 is fixedly installed on the outer side of the rotating column 35, a material scraping plate 22 is slidably installed on the outer side of the pressing protrusion 20, the material scraping plate 22 is movably installed in the threshing roller 13, one end of the threshing roller 13 is fixedly connected with one side of the driven wheel 8, a hand crank 5 is fixedly installed at one end of the rotating column 35 and penetrates through the threshing roller 13 and the threshing shell 1, a moving sliding block 21 is fixedly installed on one side of the material scraping plate 22, a moving sliding groove 19 is formed in the pressing protrusion 20, the moving sliding block 21 is slidably installed in the moving sliding groove 19, a material discharging hopper 4 is communicated with one side of the top of the threshing shell 1, and a material feeding hopper 6 is communicated with the other side of the top of the threshing shell 1.

[0029] The working principle of the above technical scheme is as follows: after the external power supply, the driving motor 11 can be started, the output end of the driving motor 11 can drive the driving wheel 10 to rotate, thereby driving the driven wheel 8 to rotate through the transmission belt 9, thereby driving the threshing roller 13 to rotate, thereby driving the threshing arc block 14 and the threshing convex block 15 to rotate, then the rapeseed can be added to the inside of the threshing shell 1 through the feeding hopper 6, the rapeseed is crushed by the threshing arc block 14 and the threshing roller 13, so that the rapeseed is threshed, the threshed rapeseed falls into the inside of the guide hopper 17 through the screening arc plate 16, then falls into the inside of the storage hopper 2 through the dropping pipe 18, and the rapeseed shell stays on the top of the screening arc plate 16, part of the rapeseed shell is discharged from the discharge hopper 4 through the rotating threshing arc block 14 and the threshing convex block 15, when the rapeseed is threshed, the hand handle 5 is rotated, the hand handle 5 drives the rotating column 35 to rotate, the rotating column 35 drives the pressing convex block 20 to rotate, so that the scraper plate 22 is moved outside the pressing convex block 20 through the moving sliding groove 19 and the moving sliding block 21, so that the scraper plate 22 is separated from the inside of the threshing roller 13, so that the end of the scraper plate 22 is in contact with the top of the screening arc plate 16, so that the scraper plate 22 is driven to rotate when the threshing roller 13 rotates, so that the rapeseed and the rapeseed shell remaining on the top of the screening arc plate 16 are pushed out through the discharge hopper 4, the top of the screening arc plate 16 is prevented from remaining the rapeseed and the rapeseed shell, and the next variety of rapeseed is prevented from being mixed with the previous variety of rapeseed when the next variety of rapeseed is threshed, so that the variety selection is successful.

[0030] In another embodiment, as shown in Figures 1-9 The knocking assembly includes a pressing ring 33 and a sleeve frame 34, one end of the sleeve frame 34 is fixedly connected with the inside of the threshing shell 1, one end of the pressing ring 33 is fixedly connected with one end of the driving wheel 10, the inside of the sleeve frame 34 is fixedly installed with a spring pressing ring 29, the inside of the spring pressing ring 29 is slidably installed with a moving rod 30, one end of the moving rod 30 is fixedly installed with a spring pressing plate 31, the outside of the moving rod 30 is sleevedly installed with a return spring 32, one end of the moving rod 30 is fixedly installed with a moving plate 28, one side of the moving plate 28 is fixedly installed with a connecting rod 25, one end of the connecting rod 25 away from the moving plate 28 is fixedly installed with a knocking head 24, one side of the moving plate 28 away from the connecting rod 25 is fixedly installed with a connecting column 26, one end of the connecting column 26 away from the moving plate 28 is fixedly installed with a pressing block 27, and one end of the pressing block 27 away from the connecting column 26 is in contact with the outside of the pressing ring 33.

[0031] When the driving wheel 10 rotates, the abutting ring 33 can be driven to rotate. Since the surface of the abutting ring 33 in contact with the abutting block 27 is an uneven arc surface, the abutting block 27 is pushed to move, the connecting column 26 pushes the moving plate 28 to move, the connecting rod 25 pushes the knocking head 24 to move, and the side wall of the blanking pipe 18 is knocked by the knocking head 24. In addition, when the moving plate 28 moves to the side close to the side wall of the blanking pipe 18, the spring pressing ring 29 is fixedly connected with the sleeving frame 34, the moving rod 30 is slidingly connected with the spring pressing ring 29, and under the action of the reset spring 32, the moving plate 28 pulls the moving rod 30 to move in the sleeving frame 34, the spring pressing plate 31 presses the reset spring 32, the knocking head 24 reciprocates with the abutting ring 33, the blanking pipe 18 is reciprocally knocked, the rapeseed is prevented from being left in the guide hopper 17 and the blanking pipe 18, the inside of the threshing machine is ensured to be free of rapeseed, and the use effect of the device is improved.

[0032] In another embodiment, as shown in Figures 1-9 One side of the storage hopper 2 is fixedly provided with a handle 3, both sides of the inside cavity of the threshing shell 1 are fixedly provided with support sliding plates 23, the storage hopper 2 is slidingly installed on the top of the support sliding plates 23, one side of the threshing shell 1 is fixedly provided with a protective cover 7, and the protective cover 7 is sleevedly installed on the outside of the driving motor 11, the driven wheel 8, the transmission belt 9 and the driving wheel 10.

[0033] The handle 3 is arranged to facilitate pulling the storage hopper 2 out of the inside of the threshing shell 1 and the top of the support sliding plates 23, facilitating replacement of the storage hopper 2, and the protective cover 7 is arranged to protect the driving motor 11, the driven wheel 8, the transmission belt 9 and the driving wheel 10.

[0034] Working principle: after connecting the power supply, the driving motor 11 can be started, the output end of the driving motor 11 can drive the driving wheel 10 to rotate, thereby driving the driven wheel 8 to rotate through the transmission belt 9, thereby driving the threshing roller 13 to rotate, thereby driving the threshing arc block 14 and the threshing convex block 15 to rotate. Then the rapeseed can be added to the inside of the threshing shell 1 through the feeding hopper 6, the threshing arc block 14 and the threshing roller 13 will crush the rapeseed, thereby making the rapeseed hulling, the hulling rapeseed will fall into the inside of the guide hopper 17 through the screening arc plate 16, then fall into the inside of the storage hopper 2 through the dropping pipe 18, while the rapeseed hull will stay on the top of the screening arc plate 16, part of the rapeseed hull will be discharged from the discharge hopper 4 through the rotating threshing arc block 14 and the threshing convex block 15. When the rapeseed is threshed, the hand handle 5 can be rotated, the hand handle 5 drives the rotating column 35 to rotate, the rotating column 35 can drive the pressing convex block 20 to rotate, thereby moving the sliding groove 19 and the moving block 21 to make the scraping plate 22 move outside the pressing convex block 20, thereby making the scraping plate 22 move out of the inside of the threshing roller 13, thereby making the end of the scraping plate 22 contact with the top of the screening arc plate 16, thereby making the threshing roller 13 drive the scraping plate 22 to rotate when rotating, thereby making the rapeseed and the rapeseed hull remaining on the top of the screening arc plate 16 be pushed out through the discharge hopper 4, preventing the rapeseed and the rapeseed hull from remaining on the top of the screening arc plate 16, ensuring that the next variety of rapeseed will not be mixed with the previous variety of rapeseed when the next variety of rapeseed is threshed, ensuring that the variety screening is successful. In addition, the driving wheel 10 can drive the abutting ring 33 to rotate when rotating, since the surface of the abutting ring 33 in contact with the abutting block 27 is an uneven arc surface, thereby moving the abutting block 27 and moving the moving plate 28 through the connecting column 26, thereby moving the knocking head 24 through the connecting rod 25, and knocking the side wall of the dropping pipe 18 through the knocking head 24. In addition, when the moving plate 28 moves to the side close to the side wall of the dropping pipe 18, since the spring pressing ring 29 is fixedly connected with the sleeving frame 34, the moving rod 30 is slidingly connected with the spring pressing ring 29, under the action of the return spring 32, the moving plate 28 can pull the moving rod 30 to move inside the sleeving frame 34, thereby extruding the return spring 32 through the spring pressing plate 31, thereby making the knocking head 24 reciprocate with the abutting ring 33, thereby reciprocally knocking the dropping pipe 18, thereby preventing the rapeseed from remaining in the guide hopper 17 and the dropping pipe 18, ensuring that the rapeseed will not remain in the inside of the threshing machine, improving the use effect of the device. In addition, when the threshing is completed, the handle 3 can be used to conveniently pull out the storage hopper 2 from the inside of the threshing shell 1, the top of the supporting slide plate 23, facilitating the replacement of the storage hopper 2. The driving motor 11, the driven wheel 8, the transmission belt 9 and the driving wheel 10 can be protected through the protection cover 7.

[0035] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A residue-free rapeseed threshing machine, comprising a threshing husk (1), characterized in that: A transmission assembly is installed on one side of the threshing shell (1), a threshing assembly is installed inside the threshing shell (1), a screening arc plate (16) is fixedly installed inside the threshing shell (1), a guide hopper (17) is fixedly installed inside the threshing shell (1), a discharge pipe (18) is connected to the bottom of the guide hopper (17), a storage hopper (2) is movably installed inside the threshing shell (1), and a striking assembly is installed inside the threshing shell (1).

2. The residue-free rapeseed threshing machine according to claim 1, characterized in that: The transmission assembly includes a drive motor (11), a drive wheel (10) is fixedly installed at the output end of the drive motor (11), a transmission belt (9) is sleeved on the outer side of the drive wheel (10), a driven wheel (8) is sleeved on the inner side of the transmission belt (9) away from the drive wheel (10), a fixed seat (12) is fixedly installed on the outer side of the drive motor (11), and one side of the fixed seat (12) is fixedly installed on one side of the threshing hull (1).

3. The residue-free rapeseed threshing machine according to claim 2, characterized in that: The threshing assembly includes a threshing roller (13), a threshing protrusion (15) fixedly installed on the outer side of the threshing roller (13), a threshing arc block (14) fixedly installed on the outer side of the threshing roller (13), a rotating column (35) rotatably installed inside the threshing roller (13), a pressing protrusion (20) fixedly installed on the outer side of the rotating column (35), and a scraper (22) slidably installed on the outer side of the pressing protrusion (20).

4. The residue-free rapeseed threshing machine according to claim 3, characterized in that: The scraper (22) is movably installed inside the threshing roller (13). One end of the threshing roller (13) is fixedly connected to one side of the driven wheel (8). One end of the rotating column (35) passes through the threshing roller (13) and the threshing shell (1) and is fixedly installed with a hand handle (5).

5. The residue-free rapeseed thresher according to claim 4, characterized in that: A movable slider (21) is fixedly installed on one side of the scraper (22), and a movable groove (19) is opened inside the pressing protrusion (20). The movable slider (21) is slidably installed inside the movable groove (19).

6. The residue-free rapeseed thresher according to claim 5, characterized in that: The striking assembly includes an abutment ring (33) and a sleeve frame (34). One end of the abutment ring (33) is fixedly connected to one end of the drive wheel (10). A spring pressure ring (29) is fixedly installed inside the sleeve frame (34). A moving rod (30) is slidably installed inside the spring pressure ring (29). A spring pressure plate (31) is fixedly installed at one end of the moving rod (30). A return spring (32) is sleeved on the outside of the moving rod (30). A moving plate (28) is fixedly installed at one end of the moving rod (30). A connecting rod (25) is fixedly installed on one side of the moving plate (28). A striking head (24) is fixedly installed at the end of the connecting rod (25) away from the moving plate (28). A connecting post (26) is fixedly installed on the side of the moving plate (28) away from the connecting rod (25). An abutment block (27) is fixedly installed at the end of the connecting post (26) away from the moving plate (28).

7. The residue-free rapeseed threshing machine according to claim 6, characterized in that: The end of the abutment block (27) away from the connecting post (26) is in contact with the outer side of the abutment ring (33).

8. The residue-free rapeseed thresher according to claim 7, characterized in that: A handle (3) is fixedly installed on one side of the storage hopper (2), and a support slide plate (23) is fixedly installed on both sides of the inner cavity of the threshing shell (1). The storage hopper (2) is slidably installed on the top of the support slide plate (23).

9. A residue-free rapeseed threshing machine according to claim 8, characterized in that: A protective cover (7) is fixedly installed on one side of the threshing hull (1). The protective cover (7) is sleeved on the outside of the drive motor (11), driven wheel (8), transmission belt (9) and drive wheel (10).

10. A residue-free rapeseed threshing machine according to claim 9, characterized in that: The top of the threshing hull (1) is connected to a discharge hopper (4) on one side, and the top of the threshing hull (1) is connected to a feed hopper (6) on the other side.