Efficient harvester
By introducing a multi-hole screen conveyor belt with spiked teeth and a threshing drum with bow teeth into the harvester, the problem of poor threshing effect was solved, achieving efficient separation of plants from soil and improving operational efficiency and economic benefits.
Patent Information
- Application Number
- CN202511048450.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2025-11-14
AI Technical Summary
Existing harvesters for tiger nuts and peanuts have poor threshing performance, low production efficiency, and high loss and impurity rates.
The system employs a multi-hole screen conveyor belt with spiked teeth and a threshing drum with bow teeth, combined with components such as a soil-removing blade, rotary tiller, screw conveyor, and vibrating conveyor screen, to achieve efficient separation and threshing of plants from soil.
It improved threshing efficiency, reduced loss and impurity rates, and increased operating speed and economic benefits.
Smart Images

Figure CN120937618A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of agricultural machinery technology, and in particular relates to a high-efficiency harvester. Background Technology
[0002] Currently, most harvesters used in the agricultural machinery industry for tiger nuts, peanuts, or similar medicinal herbs use large drums. These drums lack toothed or arched teeth, resulting in poor separation and threshing of tiger nut vines and peanut vines. The conveyor belt in front only serves a transporting function, leading to low production efficiency and high loss and impurity rates. Summary of the Invention
[0003] This invention aims to solve the problems of low production efficiency, high loss rate, and high impurity rate of harvesters, thereby providing a high-efficiency harvester that improves operating efficiency and threshing rate.
[0004] To achieve the above-mentioned objectives, this invention provides a high-efficiency harvester, including a pressure roller, a soil-removing blade, a rotary tiller, a screw conveyor A, a vibrating conveyor screen, a collection box, a bucket elevator A, a diesel engine, a generator, a fan, a hydraulic oil pump, a track assembly, a frame, a threshing drum, a bucket elevator B, a double-layer cleaning screen, a tiger nut collection box, and a driver's cab.
[0005] The harvester has a pressure roller under the front plate, and a soil-removing blade facing forward is located on the lower side of the rear of the pressure roller. The soil-removing blades are arranged in a row at intervals. A rotary tiller and a screw conveyor A are located between the soil-removing blades and the front plate.
[0006] The frame is mounted on the track assembly, and the collection box is mounted below the front end of the frame. The bucket elevator A, diesel engine, generator, blower, hydraulic oil pump, hydraulic oil tank, and diesel tank are mounted on the frame from front to back. The tiger nut collection box is mounted at the rear end of the frame. The driver's cab is located above the front end of the frame. The threshing drum is located below the upper end of the bucket elevator A. The bucket elevator B is located behind the threshing drum. The double-layer cleaning screen is located below the upper end of the bucket elevator B. A safety guard is located above the double-layer cleaning screen. The blower is located below the front side of the double-layer cleaning screen.
[0007] The diesel engine pulley connects to the gearbox pulley, which in turn connects to the track pulley and the pulley A of the screw conveyor B. Pulley A connects to pulley B, and the track pulley drives the track. The diesel engine pulley connects to the generator pulley, which in turn connects to the hydraulic pump pulley. The hydraulic pump pulley connects to the eccentric wheel on the double-layer cleaning screen. The diesel engine pulley drives the fan pulley. The gearbox power output shaft connects to the transmission box B via universal joint B. Transmission box B connects to transmission box A via universal joint A. Transmission box A connects to the rotary tiller.
[0008] The front end of the frame is connected to the cutting blade and the front end plate via a downward-sloping vibrating conveyor screen. The vibrating conveyor screen and the front end plate are connected by a hydraulic cylinder B. The front end of the frame is connected to the vibrating conveyor screen via a hydraulic cylinder A. A screw conveyor B for feeding material to the collection box is provided on the lower rear end of the vibrating conveyor screen.
[0009] After the rotary tiller uses a soil-removing blade to dig out the plants along with the soil from the ground, it is conveyed by screw conveyor A to a vibrating conveyor screen. The vibrating conveyor screen removes some of the soil from the material, and then it is conveyed to screw conveyor B. Screw conveyor B conveys the material to a collection box, and then bucket elevator A conveys the material to a threshing drum. After the material passes through the threshing drum, the plants and the roots or fruits below are separated. Bucket elevator B then sends the material to a double-layer cleaning screen for further cleaning, and a blower blows the plants out of the machine. Finally, the material falls into the tiger nut collection box.
[0010] Furthermore, the vibrating conveyor screen includes a pulley B, a pulley C, an eccentric wheel A, an eccentric wheel B, and a perforated screen conveyor belt. The pulley B drives the eccentric wheel A to rotate. The pulley B is connected to the pulley C via a V-belt. The pulley C drives the eccentric wheel B to rotate. The perforated screen conveyor belt is fitted onto the eccentric wheels A and B, and the perforated screen conveyor belt is provided with spike teeth.
[0011] Furthermore, the left and right parts of the screw conveyor A rotate in opposite directions.
[0012] Furthermore, one end of the screw conveyor B extends into the edge of the collection box to send the seedlings that have been screened out by the vibrating conveyor into the collection box.
[0013] This invention provides a high-efficiency harvester. The machine is equipped with a vibrating conveyor screen at the front, which removes part of the soil from the seedlings before they enter the threshing drum. At the same time, the threshing drum is equipped with bow teeth, which improves the threshing rate. Due to the application of the above devices, this high-efficiency harvester can significantly increase the operating speed and improve the operating efficiency. Therefore, this invention has high economic and social benefits. Attached Figure Description
[0014] Figure 1 This is the front view of the present invention;
[0015] Figure 2 for Figure 1 AA section view;
[0016] Figure 3 This is a schematic diagram of a rotary tiller, screw conveyor A, and universal joint connection;
[0017] Figure 4 for Figure 2 A partial view;
[0018] Figure 5 for Figure 1 View from direction B;
[0019] Figure 6 for Figure 1 The C-direction view;
[0020] Figure 7 A schematic diagram of the transmission system for a diesel engine driving a generator, fan, hydraulic pump, and double-layer cleaning screen;
[0021] The components include: 1. Pressure roller; 2. Soil-removing blade; 3. Rotary tiller; 4. Screw conveyor A; 5. Vibrating conveyor screen; 6. Transmission box A; 7. Universal joint; 8. Transmission box B; 9. Collection box; 10. Bucket elevator A; 11. Track assembly; 12. Diesel engine; 13. Generator; 14. Fan; 15. Hydraulic oil pump; 16. Hydraulic oil tank; 17. Frame; 18. Diesel tank; 19. Collection box; 20. Double-layer cleaning screen; 21. Safety guard; 22. Bucket elevator. 23. Threshing roller; 24. Cab; 25. Hydraulic cylinder A; 26. Hydraulic cylinder B; 27. Threshing roller; 28. Bow tooth; 29. Screw conveyor B; 30. Gearbox; 31. Pulley A; 32. Pulley B; 33. V-belt; 34. Pulley C; 35. Eccentric wheel A; 36. Multi-hole screen conveyor belt; 37. Spike tooth; 38. Eccentric wheel B; 39. Diesel engine pulley; 40. Gearbox pulley; 41. Track pulley; 42. Universal joint B. Detailed Implementation
[0022] To better understand the purpose, structure, and function of this invention, the following detailed description of a high-efficiency self-propelled tiger nut harvester is provided in conjunction with the accompanying drawings.
[0023] Reference Figures 1 to 6 The high-efficiency harvester includes a pressure roller 1, a soil-removing blade 2, a rotary tiller 3, a screw conveyor A4, a vibrating conveyor screen 5, a collection box 9, a bucket elevator A10, a diesel engine 12, a generator 13, a fan 14, a hydraulic oil pump 15, a track assembly 11, a frame 17, a threshing drum 23, a bucket elevator B22, a double-layer cleaning screen 20, a collection box 19, and a cab 24.
[0024] The harvester has a pressure roller 1 under the front plate, and a soil-removing blade 2 facing forward is located on the lower rear side of the pressure roller 1. The soil-removing blades 2 are arranged in a row at intervals. A rotary tiller 3 and a screw conveyor A4 are located between the soil-removing blades 2 and the front plate.
[0025] The frame 17 is mounted on the track assembly 11. The collection box 9 is mounted below the front end of the frame 17. The bucket elevator A10, diesel engine 12, generator 13, blower 14, hydraulic oil pump 15, hydraulic oil tank 16, and diesel tank 18 are mounted on the frame 17 from front to back. The collection box 19 is mounted at the rear end of the frame 17. The operator's cab 24 is located above the front end of the frame 17. The threshing drum 23 is located below the upper end of the bucket elevator A10. The bucket elevator B22 is located behind the threshing drum 23. The double-layer cleaning screen 20 is located below the upper end of the bucket elevator B22. A safety guard 21 is located above the double-layer cleaning screen 20. The blower 14 is located below the front side of the double-layer cleaning screen 20.
[0026] refer to Figure 2 and Figure 4 The diesel engine uses a diesel engine pulley 39 to connect to the gearbox pulley 40 of the gearbox 30. The gearbox pulley 40 then connects to the track pulley 41 and the pulley A31 of the screw conveyor B29. The pulley A31 connects to the pulley B32, and the track pulley 41 drives the track to travel.
[0027] See Figure 7 The diesel engine pulley 39 is connected to the generator pulley, the generator pulley is connected to the hydraulic oil pump pulley, the hydraulic oil pump pulley is connected to the eccentric wheel on the double-layer cleaning screen, and at the same time, the diesel engine pulley drives the fan pulley.
[0028] See Figure 3 , Figure 4 The power take-off shaft of gearbox 30 is connected to transmission box B8 via universal joint B42. Transmission box B8 is connected to transmission box A6 via universal joint A7. Transmission box A6 is connected to rotary tiller 3. The power output from the power take-off shaft of gearbox 30 is transmitted to transmission box B8 via universal joint B42, and then from transmission box B8 to transmission box A6 via universal joint A7. Transmission box A6 drives rotary tiller 3 to rotate.
[0029] The front end of the frame 17 is connected to the soil-removing blade 2 and the front end plate via the downward-sloping vibrating conveyor screen 5. The vibrating conveyor screen 5 and the front end plate are connected via hydraulic cylinder B26. The front end of the frame 17 is connected to the vibrating conveyor screen 5 via hydraulic cylinder A25.
[0030] The vibrating conveyor screen 5 includes a pulley B32, a pulley C34, an eccentric wheel A35, an eccentric wheel B38, and a perforated screen conveyor belt 36. Pulley B32 drives the eccentric wheel A35 to rotate. Pulley B32 is connected to pulley C34 via a V-belt 33. Pulley C34 drives the eccentric wheel B38 to rotate. The perforated screen conveyor belt 36 is fitted onto the eccentric wheels A35 and B38, and is equipped with spiked teeth 37. The perforated screen conveyor belt 36 vibrates as it rotates with the eccentric wheels A35 and B38, accelerating the separation of soil from the tiger peas. The vibrating conveyor screen 5 uses an eccentric wheel mechanism to generate vibration and drive the perforated screen conveyor belt. The perforated screen conveyor belt is equipped with spiked teeth, thereby accelerating the separation of soil and vines from the material and improving the machine's working efficiency.
[0031] After the soil-digging blades and rotary tillers dig out the tiger nuts along with the soil from the ground, they are conveyed to the front of the vibrating conveyor screen 5 by a screw conveyor A4. The left and right parts of the screw conveyor A4 rotate in opposite directions, which helps to concentrate the material towards the center. The multi-hole screen conveyor belt 36 of the vibrating conveyor screen 5 is equipped with spike teeth 37. The spike teeth 37 hook the tiger nuts with vines in front of them and move them backward with the multi-hole screen conveyor belt. During the movement, the vibration removes the soil on top.
[0032] A screw conveyor B29 is installed on the lower rear end of the vibrating conveyor screen 5. One end of the screw conveyor B29 extends into the edge of the collection box 9, feeding the tiger peas with vines off the vibrating conveyor screen 5 into the collection box 9. Then, a bucket elevator A10 conveys the material to the threshing drum 23 for threshing. To improve operating efficiency, the threshing rollers 27 of the threshing drum 23 are equipped with bow teeth 28. (See reference...) Figure 2 .
[0033] After the tiger vines and tiger nuts are separated by the threshing drum 23, the material is sent to the double-layer cleaning screen 20 by the bucket elevator B22 for further cleaning. The remaining tiger vines are blown out of the machine by the blower 14, the soil falls to the ground through the double-layer cleaning screen holes, and the clean tiger nuts fall into the tiger nut collection box 19, thus completing the entire operation process.
[0034] The pressure generated by the hydraulic pump 15 drives the cylinders A25 and B26 to change the angle of the cutting blade and the vibrating conveyor belt to achieve the best working condition.
[0035] Safety guards are installed on the frame to ensure operational safety.
[0036] This invention provides a high-efficiency harvester with significant economic and social benefits, which can greatly increase operating speed and improve operating efficiency.
Claims
1. A high-efficiency harvester, characterized in that: Includes pressure roller (1), soil-removing blade (2), rotary tiller (3), screw conveyor A (4), vibrating conveyor screen (5), collection box (9), bucket elevator A (10), diesel engine (12), generator (13), fan (14), hydraulic oil pump (15), track assembly (11), frame (17), threshing drum (23), bucket elevator B (22), double-layer cleaning screen (20), collection box (19), and driver's cab (24); The harvester has a pressure roller (1) under the front plate, and a soil-removing blade (2) facing forward is provided on the lower side of the rear part of the pressure roller (1). The soil-removing blades (2) are arranged in a row at intervals. A rotary tiller (3) and a screw conveyor A (4) are provided between the soil-removing blades (2) and the front plate. The frame (17) is mounted on the track assembly (11), the collection box (9) is mounted below the front end of the frame (17), the bucket elevator A (10), diesel engine (12), generator (13), fan (14), hydraulic oil pump (15), hydraulic oil tank (16), and diesel tank (18) are mounted on the frame (17) from front to back, and the tiger pea collection box (19) is mounted at the rear end of the frame (17); the driver's cab (24) is located above the front end of the frame (17), the threshing drum (23) is located below the upper end of the bucket elevator A (10), the bucket elevator B (22) is located behind the threshing drum (23), the double-layer cleaning screen (20) is located below the upper end of the bucket elevator B (22), and a safety guard (21) is located above the double-layer cleaning screen (20); the fan (14) is located below the front side of the double-layer cleaning screen (20); The diesel engine pulley (39) is connected to the gearbox pulley (40) of the gearbox (30), and the gearbox pulley (40) is connected to the track pulley (41) and the pulley A (31) of the screw conveyor B (29). The pulley A (31) is connected to the pulley B (32), and the track pulley (41) drives the track to travel. The diesel engine pulley (39) is connected to the generator pulley, the generator pulley is connected to the hydraulic oil pump pulley, and the hydraulic oil pump pulley is connected to the eccentric wheel on the double-layer cleaning screen. The diesel engine pulley drives the fan pulley. The power output shaft of the gearbox (30) is connected to the transmission box B (8) through the universal joint B (42). The transmission box B (8) is connected to the transmission box A (6) through the universal joint A (7). The transmission box A (6) is connected to the rotary tiller (3). The front end of the frame (17) is connected to the soil cutter (2) and the front end plate via an inclined downward vibrating conveyor screen (5). The vibrating conveyor screen (5) and the front end plate are connected via hydraulic cylinder B (26). The front end of the frame (17) is connected to the vibrating conveyor screen (5) via hydraulic cylinder A (25). The lower rear end of the vibrating conveyor screen (5) is equipped with a screw conveyor B (29) for feeding materials to the collection box (9). After the plants and seedlings are dug out of the soil by the soil-digging knife (2) and rotary tiller (3), they are transported to the vibrating conveyor screen (5) by the screw conveyor A (4). The vibrating conveyor screen removes some soil from the material and then transports it to the screw conveyor B (29). The screw conveyor B (29) transports the material to the collection box (9) and then the bucket elevator A (10) transports the material to the threshing drum (23). After the material passes through the threshing drum (23) to separate the plants from the roots or fruits below, the bucket elevator B (22) sends the material to the double-layer cleaning screen (20) for further cleaning. The plant seedlings are blown out of the machine by the blower and finally fall into the collection box (19).
2. The high-efficiency harvester according to claim 1, characterized in that: The vibrating conveyor screen (5) includes a pulley B (32), a pulley C (34), an eccentric wheel A (35), an eccentric wheel B (38), and a perforated screen conveyor belt (36). The pulley B (32) drives the eccentric wheel A (35) to rotate. The pulley B (32) is connected to the pulley C (34) through a V-belt (33). The pulley C (34) drives the eccentric wheel B (38) to rotate. The perforated screen conveyor belt (36) is fitted on the eccentric wheel A (35) and the eccentric wheel B (38). The perforated screen conveyor belt (36) is provided with spike teeth (37).
3. The high-efficiency harvester according to claim 1, characterized in that: The screw conveyor A(4) has two parts that rotate in opposite directions.
4. The high-efficiency harvester according to claim 1, characterized in that: One end of the screw conveyor B (29) extends into the edge of the collection box (9) to send the seedlings with seedlings off the vibrating conveyor screen (5) into the collection box (9).
Citation Information
Patent Citations
Harvester
CN101569260A
Vibratory screen type tiger nut harvester
CN103081629A
Traction type cyperus esculentus harvester
CN111133877A
Multifunctional peanut combined harvester
CN204408946U
Cyperus esculentus harvester
CN206413405U