A waste return drum device for combine harvesters

Abstract

This utility model relates to the technical field of waste return drum devices, and discloses a waste return drum device for combine harvesters. It solves the problem that the waste return drum device for combine harvesters uses two transmission devices to individually power two augers, leading to increased manufacturing costs and a higher failure rate. The device includes a frame, with a threshing chamber fixedly installed in the upper part of the frame, a cleaning chamber fixedly installed in the lower part of the frame, a conveyor box fixedly installed on the top of the frame, a discharge pipe fixedly installed on one side of the conveyor box, a conveying cylinder fixedly installed at one end of the discharge pipe, and two positioning rings fixedly installed on the surface of the conveying cylinder, both of which are fixedly connected to one side of the frame. A drive motor is fixedly installed at one end of the conveyor box. This waste return drum device for combine harvesters only requires one transmission device to output power to both augers, thereby reducing manufacturing costs and lowering the failure rate.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste return roller device, specifically a waste return roller device for combine harvesters. Background Technology

[0002] The waste return drum device for combine harvesters is a component designed to improve harvesting efficiency and grain cleanliness. Existing patent (publication number: CN205431128U) describes a combine harvester waste return drum device that ensures all waste enters the threshing chamber for secondary threshing and separates waste across the entire circumference of the threshing drum, resulting in good threshing performance, thorough waste removal, and even distribution of threshed grains onto the cleaning screen, thus improving overall machine cleaning efficiency. However, this combine harvester waste return drum device uses two separate drive systems to power two augers, increasing manufacturing costs and the failure rate, leading to unsatisfactory performance. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a waste return drum device for combine harvesters, which effectively solves the problem that the waste return drum device of combine harvesters uses two transmission devices to output power to two augers separately, which increases the production and manufacturing cost and increases the failure rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste return drum device for a combine harvester, comprising a frame, a threshing bin fixedly installed in the upper part of the frame, a cleaning bin fixedly installed in the lower part of the frame, a conveying box fixedly installed on the top of the frame, a discharge pipe fixedly installed on one side of the conveying box, a conveying cylinder fixedly installed at one end of the discharge pipe, two positioning rings fixedly installed on the surface of the conveying cylinder, both positioning rings being fixedly connected to one side of the frame, a drive motor fixedly installed at one end of the conveying box, a discharge valve fixedly installed on one side of the cleaning bin, one end of the discharge valve being fixedly connected to the lower end of the conveying cylinder, a first auger provided inside the conveying box, a second auger provided inside the conveying cylinder, a transmission assembly provided at the output end of the drive motor, the transmission assembly being connected to the first and second augers, and power being output to the first and second augers through the transmission assembly when the drive motor is running, and a discharge port being provided at one end of the bottom of the conveying box.

[0005] Preferably, the transmission assembly includes a first auger, which is fixedly installed at the output end of the drive motor. A shaft is fixedly installed at one end of the first auger, and a first bushing is rotatably installed at one end of the shaft surface. A fixed disk is fixedly installed on the surface of the first bushing, and the circumferential surface of the fixed disk is fixedly connected to the inner wall of the conveyor box. A second bushing is rotatably installed at the other end of the shaft surface, and the surface of the second bushing is fixedly connected to the other end of the conveyor box.

[0006] Preferably, a drive sprocket is fixedly installed at the end of the shaft away from the first auger, an upper positioning frame is rotatably installed on one side of the drive sprocket, one end of the upper positioning frame is fixedly connected to the frame, a lower positioning frame is fixedly installed at the lower part of one end of the frame, a driven sprocket is rotatably installed at one end of the lower positioning frame, and a chain is meshed between the driven sprocket and the drive sprocket.

[0007] Preferably, a rotating shaft is fixedly installed on one side of the driven sprocket, and a bearing is rotatably installed on one end of the rotating shaft surface. The surface of the bearing is fixedly connected to the frame through a connecting rod. A driving bevel gear is fixedly installed on one end of the rotating shaft, and a driven bevel gear is meshed with the upper part of the surface of the driving bevel gear. The top of the driven bevel gear is fixedly connected to the second auger, the top of the second auger is rotatably connected to the inner top of the conveying cylinder, and the surface of the lower end of the second auger is rotatably connected to the bottom of the conveying cylinder through a rotating sleeve.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the impurities after threshing in the threshing chamber and cleaning in the cleaning chamber will enter the inside of the conveying cylinder through the discharge valve. At the same time, the operator starts the drive motor to drive the first auger to rotate. When the first auger rotates, it drives the shaft to rotate inside the first and second bushings. When the shaft rotates, it drives the drive sprocket to rotate along the upper positioning frame. When the drive sprocket rotates, it drives the driven sprocket to rotate along the lower positioning frame through the chain.

[0009] When the driven sprocket rotates, it drives the shaft to rotate inside the bearing. When the shaft rotates, it drives the driven bevel gear to rotate through the driving bevel gear. When the driven bevel gear rotates, it drives the second auger to rotate inside the rotating sleeve. When the second auger rotates, it lifts the impurities inside the conveying drum and puts them into the conveying box through the discharge pipe. At the same time, the first auger transports the impurities to the discharge port and puts them back into the threshing bin for secondary processing. This allows the impurity return drum device of this combine harvester to output power to two augers with only one transmission device, thereby reducing manufacturing costs and the failure rate, and achieving very good performance. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram of the waste return roller device for a combine harvester according to this utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the waste return roller device for a combine harvester according to this utility model. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the waste return roller device for a combine harvester according to this utility model. Figure 3 ;

[0015] Figure 4 This is a schematic diagram of the internal structure of the conveyor box and conveyor cylinder of this utility model;

[0016] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0017] In the diagram: 1. Frame; 2. Threshing chamber; 3. Cleaning chamber; 4. Feed pipe; 5. Conveying box; 6. Conveying cylinder; 7. Drive motor; 8. Discharge valve; 9. Positioning ring; 10. First auger; 11. Shaft; 12. First bushing; 13. Fixed plate; 14. Second bushing; 15. Drive sprocket; 16. Upper positioning frame; 17. Lower positioning frame; 18. Driven sprocket; 19. Chain; 20. Rotating shaft; 21. Bearing; 22. Connecting rod; 23. Drive bevel gear; 24. Driven bevel gear; 25. Second auger; 26. Rotating sleeve; 27. Feed port. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figures 1 to 5The present invention includes a frame 1, a threshing chamber 2 fixedly installed in the upper part of the frame 1, a cleaning chamber 3 fixedly installed in the lower part of the frame 1, a conveying box 5 fixedly installed on the top of the frame 1, a discharge pipe 4 fixedly installed on one side of the conveying box 5, a conveying cylinder 6 fixedly installed at one end of the discharge pipe 4, two positioning rings 9 fixedly installed on the surface of the conveying cylinder 6, both positioning rings 9 being fixedly connected to one side of the frame 1, a drive motor 7 fixedly installed at one end of the conveying box 5, a discharge valve 8 fixedly installed on one side of the cleaning chamber 3, one end of the discharge valve 8 being fixedly connected to the lower end of the conveying cylinder 6, a first auger 10 provided inside the conveying box 5, a second auger 25 provided inside the conveying cylinder 6, a transmission assembly provided at the output end of the drive motor 7, the transmission assembly being connected to the first auger 10 and the second auger 25, and the drive motor 7 outputting power to the first auger 10 and the second auger 25 through the transmission assembly when it is running, and a discharge port 27 being opened at one end of the bottom of the conveying box 5.

[0020] During operation, the impurities after threshing in the threshing chamber 2 and cleaning in the cleaning chamber 3 enter the conveying cylinder 6 through the discharge valve 8. At the same time, the operator starts the drive motor 7 to drive the transmission component. When the transmission component is running, it drives the first auger 10 and the second auger 25 to rotate. When the second auger 25 rotates, it lifts the impurities inside the conveying cylinder 6 and puts them into the conveying box 5 through the discharge pipe 4. Meanwhile, the first auger 10 transports the impurities to the discharge port 27 and puts them back into the threshing chamber 2 for secondary processing. This allows the impurity return drum device of this combine harvester to output power to two augers with only one transmission device, thereby reducing production costs and the failure rate, and achieving very good results.

[0021] The transmission assembly includes a first auger 10, which is fixedly installed at the output end of the drive motor 7. A shaft 11 is fixedly installed at one end of the first auger 10. A first bushing 12 is rotatably installed at one end of the surface of the shaft 11. A fixed disk 13 is fixedly installed on the surface of the first bushing 12. The circumferential surface of the fixed disk 13 is fixedly connected to the inner wall of the conveyor box 5. A second bushing 14 is rotatably installed at the other end of the surface of the shaft 11. The surface of the second bushing 14 is fixedly connected to the other end of the conveyor box 5.

[0022] The operator starts the drive motor 7 to drive the first auger 10 to rotate. When the first auger 10 rotates, it drives the shaft 11 to rotate inside the first bushing 12 and the second bushing 14.

[0023] A drive sprocket 15 is fixedly installed at the end of the shaft 11 away from the first auger 10. An upper positioning frame 16 is rotatably installed on one side of the drive sprocket 15. One end of the upper positioning frame 16 is fixedly connected to the frame 1. A lower positioning frame 17 is fixedly installed at the lower part of one end of the frame 1. A driven sprocket 18 is rotatably installed at one end of the lower positioning frame 17. A chain 19 is meshed between the driven sprocket 18 and the drive sprocket 15.

[0024] When the shaft 11 rotates, it drives the drive sprocket 15 to rotate along the upper positioning frame 16. When the drive sprocket 15 rotates, it drives the driven sprocket 18 to rotate along the lower positioning frame 17 through the chain 19.

[0025] A rotating shaft 20 is fixedly installed on one side of the driven sprocket 18. A bearing 21 is rotatably installed on one end of the surface of the rotating shaft 20. The surface of the bearing 21 is fixedly connected to the frame 1 through a connecting rod 22. A driving bevel gear 23 is fixedly installed on one end of the rotating shaft 20. A driven bevel gear 24 is meshed on the upper part of the surface of the driving bevel gear 23. The top of the driven bevel gear 24 is fixedly connected to the second auger 25. The top of the second auger 25 is rotatably connected to the inner top of the conveying cylinder 6. The surface of the lower end of the second auger 25 is rotatably connected to the bottom of the conveying cylinder 6 through a rotating sleeve 26.

[0026] When the driven sprocket 18 rotates, it drives the shaft 20 to rotate inside the bearing 21. When the shaft 20 rotates, it drives the driven bevel gear 24 to rotate through the driving bevel gear 23. When the driven bevel gear 24 rotates, it drives the second auger 25 to rotate inside the rotating sleeve 26.

Claims

1. A residue re-cycling cylinder arrangement for a combine harvester comprising a frame (1) characterised in that: A threshing chamber (2) is fixedly installed in the upper part of the machine frame (1), a cleaning chamber (3) is fixedly installed in the lower part of the machine frame (1), a conveyor box (5) is fixedly installed on the top of the machine frame (1), a feeding pipe (4) is fixedly installed on one side of the conveyor box (5), a conveying cylinder (6) is fixedly installed at one end of the feeding pipe (4), two positioning rings (9) are fixedly installed on the surface of the conveying cylinder (6), and both positioning rings (9) are fixedly connected to one side of the machine frame (1). A drive motor (7) is fixedly installed at one end of the conveyor box (5), and a cleaning chamber (3) is fixedly installed on one side of the machine frame (1). A discharge valve (8) is fixedly installed. One end of the discharge valve (8) is fixedly connected to the lower end of the conveying cylinder (6). The inside of the conveying box (5) is provided with a first auger (10) and the inside of the conveying cylinder (6) is provided with a second auger (25). The output end of the drive motor (7) is provided with a transmission component. The transmission component is connected to the first auger (10) and the second auger (25) for transmission. When the drive motor (7) is running, it outputs power to the first auger (10) and the second auger (25) through the transmission component. A discharge port (27) is opened at one end of the bottom of the conveying box (5).

2. A residue roll back cylinder assembly for a combine harvester as claimed in claim 1 wherein: The transmission assembly includes a first auger (10), which is fixedly installed at the output end of the drive motor (7). A shaft (11) is fixedly installed at one end of the first auger (10). A first bushing (12) is rotatably installed at one end of the surface of the shaft (11). A fixed disk (13) is fixedly installed on the surface of the first bushing (12). The circumferential surface of the fixed disk (13) is fixedly connected to the inner wall of the conveyor box (5). A second bushing (14) is rotatably installed at the other end of the surface of the shaft (11). The surface of the second bushing (14) is fixedly connected to the other end of the conveyor box (5).

3. A residue roll back cylinder assembly for a combine harvester as claimed in claim 2 wherein: A drive sprocket (15) is fixedly installed at the end of the shaft (11) away from the first auger (10). An upper positioning frame (16) is rotatably installed on one side of the drive sprocket (15). One end of the upper positioning frame (16) is fixedly connected to the frame (1). A lower positioning frame (17) is fixedly installed at the lower part of one end of the frame (1). A driven sprocket (18) is rotatably installed at one end of the lower positioning frame (17). A chain (19) meshes between the driven sprocket (18) and the drive sprocket (15).

4. A residue roll back cylinder assembly for a combine harvester as claimed in claim 3 wherein: A rotating shaft (20) is fixedly installed on one side of the driven sprocket (18). A bearing (21) is rotatably installed on one end of the surface of the rotating shaft (20). The surface of the bearing (21) is fixedly connected to the frame (1) through a connecting rod (22). A driving bevel gear (23) is fixedly installed on one end of the rotating shaft (20). A driven bevel gear (24) is meshed on the upper part of the surface of the driving bevel gear (23). The top of the driven bevel gear (24) is fixedly connected to the second auger (25). The top of the second auger (25) is rotatably connected to the inner top of the conveying cylinder (6). The surface of the lower end of the second auger (25) is rotatably connected to the bottom of the conveying cylinder (6) through a rotating sleeve (26).

Images