A rice harvester
By designing a small rice harvester suitable for mountainous areas, and adopting a tracked walking system and a simplified cutting system, the problem of large machines being unable to enter hilly and mountainous areas for harvesting has been solved, achieving efficient and low-cost rice harvesting and reducing labor intensity.
Patent Information
- Application Number
- CN202311751981.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2043-12-19
AI Technical Summary
Large harvesters cannot enter the paddy fields in hilly and mountainous areas to harvest rice. Existing rice harvesters are complex and costly, while manual harvesting is inefficient and labor-intensive.
A rice harvester was designed, which includes harvesting, collecting, threshing, walking, driving and control devices. It adopts a tracked walking device and a simplified cutting system, and is suitable for mountainous and small-scale planting scenarios. It integrates automated control.
It improves the efficiency and flexibility of rice harvesting in mountainous areas, reduces labor intensity, is suitable for complex terrain, and lowers costs.
Smart Images

Figure CN117501978B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rice harvesting technology, specifically to a rice harvester. Background Technology
[0002] With the mechanization of agriculture, large harvesters can only harvest rice in fields with convenient transportation. In hilly and mountainous areas where roads are narrow, large harvesters cannot access rice fields for harvesting. Furthermore, existing rice harvesters have complex cutting mechanisms, suitable only for the northern plains. For mountainous areas and small-scale planting scenarios, they are not only inflexible but also costly and inefficient. In many mountainous areas, rice paddies are small, terraced, and the terrain is complex, making it impossible to use large machinery for harvesting; manual harvesting remains the mainstream method. Manual harvesting is not only inefficient but also causes back strain and harms the health of harvesters due to the constant bending over required. Summary of the Invention
[0003] In view of the above-mentioned technical deficiencies, the purpose of this invention is to provide a rice harvester to solve the existing problems.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] This invention provides a rice harvester, characterized in that it includes a harvesting device, a collecting device, a threshing device, a walking device, a driving device, and a control device, wherein the walking device is provided with a connecting frame, and the driving device is provided on the connecting frame.
[0006] The walking device includes a power output shaft, a power input shaft, track drive gear fixing screws, a gearbox fixing bracket, track walking guide wheels, a rotating shaft, a walking track, a hydraulic motor fixing bracket, a drive motor, an intermediate support frame, a track integral bracket, and a track tensioning wheel. The walking track is fitted onto the track integral bracket. The bottom of the track integral bracket is provided with several track walking guide wheels, and the top of the track integral bracket is provided with a track tensioning wheel. An intermediate support frame is provided on the track integral bracket, and a drive motor is provided on the track integral bracket. A rotating shaft is connected to the drive motor, and the rotating shaft is connected to the power output shaft. Several power input shaft track drive gear fixing screws are provided on the power output shaft, and a gearbox fixing bracket and a hydraulic motor fixing bracket are respectively provided at both ends of the rotating shaft.
[0007] The drive unit includes a positioning support frame, a diesel engine, a main input shaft, a left gripper and a right rotating gear, a travel gear pump clutch operating lever, an output pulley fixing screw, a travel hydraulic gear pump clutch operating lever movable connecting rod, a diesel engine pulley, a track travel movable connecting rod, a transfer belt power take-off clutch power input pulley, a travel gear pump hydraulic oil tank, a rotating belt, a travel gear pump clutch pulley, and a power input gear.
[0008] The threshing device includes a threshing machine, a threshing net, a grain filling box, a straw outlet, and a threshing machine. The threshing net is installed inside the threshing machine, and the threshing machine has a straw outlet. The grain filling box is installed at the bottom of the threshing machine.
[0009] The harvesting device includes a support plate, with a right harvester's rotating chain and a left fixed lifting lug respectively installed on both sides of the support plate. A power input shaft is installed on the power take-off rotating gear. A right harvester gear disc and a left harvester gear disc are symmetrically arranged on the support plate. A power take-off tooth is installed on the top surface of the left harvester gear disc, meshing with the power take-off rotating gear. A fixed support is installed in the middle of the cutting device. A middle rice leak-proof fence is installed on the fixed support. Rice support plates are installed on both sides of the middle rice leak-proof fence. The bottom of the rice support plate is the rice cutting barrier, where the harvester cuts the rice. The left harvester gear disc and the right fixed lifting lug are located on both sides of the middle rice leak-proof fence. On the sides of the central rice paddy anti-leakage fence, there are rice-board rotation limit rods on both sides. A left fixed rice-board rotating column is installed on the left fixed rice-board rotating column, and a left rice-board is installed on the left fixed rice-board rotating column. A return spring is installed on the left rice-board. A right rice-board is installed on the right fixed rice-board rotating column, and a movable part of the right rice-board is provided on the right rice-board. A male guide rail for the right harvester's root seat is installed at the bottom of the right fixed rice-board rotating column. The right harvester's rotating chain is placed within the male guide rail for the right harvester's root seat. A right gripper claw and a right harvester's blade are installed on the right harvester's rotating chain. A female guide rail for the right harvester's root seat is installed at the bottom of the right fixed rice-board rotating column. A male guide rail for the left harvester's root seat is installed at the bottom of the left fixed rice-board rotating column. The left harvester's rotating chain is positioned within the left harvester's root seat guide rail. The left harvester's rotating chain is equipped with a left harvester's blade and a left grabbing claw, used to rotate and cut the rice stalks, then grab and harvest them. The left and right harvester's rotating chains also serve as fixing brackets for the grabbing claw seat guide rail, allowing for chain tension adjustment. The left harvester's root seat guide rail is located at the bottom of the left fixed rice board rotating column. Rice cutting barriers are located on both sides of the central rice anti-leakage fence. The bottoms of both the left and right fixed rice board rotating columns are located at the lower end of the anti-leakage fence. Several equally angled force-taking teeth are provided at the lower end of the anti-leakage fence. The harvesting device is equipped with an inclined transfer support frame. One end of the transfer support frame is mounted on the power input shaft, and the other end is mounted on a fixing screw via a bearing seat. A left transfer belt guide rail and a right transfer belt guide rail are respectively mounted on both sides of the transfer support frame. The transfer belt is fixed between the left and right transfer belt guide rails. The transfer belt is equipped with anti-slip teeth for rice to prevent it from sliding downhill. A chain skeleton is installed inside the transfer belt to fix the transfer belt pieces and also serves as a power connection to the harvesting system. The main input shaft is connected to the bottom of the support frame to drive one end of the support frame to move up and down. A throttle movable connecting rod is connected to the bottom of the transfer support frame, and a support plate is connected via a balance adjustment rod.
[0010] The control device includes a throttle control lever, a control lever fixing plate, a clutch control lever, a track travel connecting rod, a throttle control connecting rod, a travel gear pump clutch control lever, a track travel control lever, a hand rest lever, a track travel hydraulic gear pump, a left track travel control lever movable connecting rod, a track travel control valve assembly, a right track travel control lever movable connecting rod, and a power take-off clutch. The power take-off clutch is equipped with a power take-off shaft. The power take-off clutch is poweredly connected to the power input gear. The track travel hydraulic gear pump, through rotation, transfers hydraulic power to the right track travel control lever movable connecting rod, a drive motor, a rotating shaft, and a power output shaft.
[0011] The number of force-taking teeth is 8.
[0012] The track support frame is equipped with an adjustment support frame for supporting the conveyor belt.
[0013] The beneficial effects of this invention are as follows: The harvester of this invention is suitable for mountainous and small-scale planting scenarios, which can reduce the labor of growers while improving work efficiency. Its compact size is specifically designed for hilly and mountainous areas, and it is fully automated, making it flexible and convenient to use in small fields or mountainous areas, thus improving harvesting efficiency. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of a rice harvester harvesting device provided in an embodiment of the present invention;
[0016] Figure 2 An enlarged view of the right side of a harvesting device for a rice harvester provided in an embodiment of the present invention;
[0017] Figure 3 An enlarged view of the left side of the harvesting device of a rice harvester provided in an embodiment of the present invention;
[0018] Figure 4 A left view of a rice harvester provided in an embodiment of the present invention;
[0019] Figure 5 A right view of a rice harvester provided in an embodiment of the present invention;
[0020] Figure 6 This is a rear view of a rice harvester provided in an embodiment of the present invention.
[0021] Explanation of reference numerals in the attached diagram: 1. Right harvesting gear; 2. Right rotating gear; 3. Right rice tray; 4. Right harvesting blade; 5. Right rice gripper; 6. Upper end of the rice stalk anti-leakage barrier; 7. Left rice gripper; 8. Left harvesting blade; 9. Left rice tray; 10. Left harvesting gear; 11. Power take-off gear; 12. Rice tray rotation limit rod; 13. Chain link; 14. Return spring; 15. Rice cutting barrier; 16. Right rice tray movable part; 17. Fixed support; 18. Lower end of the anti-leakage barrier; 19. Left harvesting blade rotating chain; 20. Right harvesting blade rotating chain; 21. Left fixed lifting lug; 22. Right fixed lifting lug; 23. Middle rice anti-leakage barrier. 24. Left fixed rice tray rotating column; 25. Right fixed rice tray rotating column; 26. Left harvester root seat female guide rail; 27. Left harvester root seat male guide rail; 28. Right harvester root seat male guide rail; 29. Right conveyor belt guide rail; 30. Rice support plate; 31. Power take-off gear; 32. Left conveyor belt guide rail; 33. Rice anti-slip tooth; 34. Right harvester root seat female guide rail; 35. Power take-off gear; 36. Throttle control lever; 37. Control lever fixing plate; 38. Clutch control lever; 39. Power take-off clutch; 40. Track travel connecting rod; 41. Throttle control connecting rod; 42. Threshing net; 43. Rice loading box; 44. Power take-off shaft; 45. Rotating shaft; 46. Track; 47. Drive motor; 48. Intermediate support frame; 49. Positioning support frame; 50. Track tensioner; 51. Adjustment support frame; 52. Balance adjustment bar; 53. Power input gear; 54. Fixing screw; 55. Track drive gear fixing screw; 58. Power input shaft; 59. Main input shaft; 60. Stalk outlet; 61. Track travel guide wheel; 66. Throttle movable connecting rod; 68. Track integral bracket; 69. Connecting frame; 70. Gearbox fixing bracket; 71. Hydraulic motor fixing bracket; 72. Power take-off shaft; 73. Travel gear pump clutch operation. 74. Bearing housing; 75. Output pulley fixing screw; 76. Traveling hydraulic gear pump clutch operating lever movable connecting rod; 77. Diesel engine pulley; 78. Track travel movable connecting rod; 79. Threshing machine; 80. Transfer belt PTO clutch power input pulley; 81. Traveling gear pump hydraulic oil tank; 82. Rotating belt; 83. Traveling gear pump clutch pulley; 84. Track travel operating lever; 85. Hand rest lever; 86. Track travel hydraulic gear pump; 87. Left track travel operating lever movable connecting rod; 88. Track travel control valve assembly; 89. Right track travel operating lever movable connecting rod. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Example 1, as Figures 1 to 6 As shown, a rice harvester includes a harvesting device, a collecting device, a threshing device, a walking device, a driving device, and a control device. The walking device is provided with a connecting frame 69, and the driving device is provided on the connecting frame 69.
[0024] The walking device includes a power output shaft 44, a power input shaft 58, track drive gear fixing screws 55, a gearbox fixing bracket 70, track walking guide wheels 61, a rotating shaft 45, a walking track 46, a hydraulic motor fixing bracket 71, a drive motor 47, an intermediate support frame 48, a track integral bracket 68, and a track tensioning wheel 50. The walking track 46 is fitted onto the track integral bracket 68. The bottom of the track integral bracket 68 is provided with several track walking guide wheels 61, and the top of the track integral bracket 68 is provided with a track tensioning wheel 50. The intermediate support frame 48 is provided on the track integral bracket 68, and the drive motor 47 is provided on the track integral bracket 68. The drive motor 47 is connected to the rotating shaft 45, and the rotating shaft 45 is connected to the power output shaft 44. The power output shaft 44 is provided with several power input shafts 58 and track drive gear fixing screws 55. The gearbox fixing bracket 70 and the hydraulic motor fixing bracket 71 are respectively provided at both ends of the rotating shaft 45.
[0025] The drive unit includes a positioning support frame 49, a diesel engine, a main input shaft 59, a left gripper 7, a right rotating gear 2, a travel gear pump clutch operating lever 73, an output pulley fixing screw 75, a travel hydraulic gear pump clutch operating lever movable connecting rod 76, a diesel engine pulley 77, a track travel movable connecting rod 78, a transfer belt power take-off clutch power input pulley 80, a travel gear pump hydraulic oil tank 81, a rotating belt 82, a travel gear pump clutch pulley 83, and a power input gear 53.
[0026] The threshing device includes a threshing machine 79, a threshing net 42, a grain filling box 43, a straw outlet 60, and a threshing machine 79. The threshing net 42 is installed inside the threshing machine 79. The threshing machine 79 is provided with a straw outlet 60. The grain filling box 43 is installed at the bottom of the threshing machine 79.
[0027] The harvesting device includes a support plate, with a left harvester's rotating chain 19 and a left fixed lifting lug 21 respectively installed on both sides of the support plate. A power input shaft 58 is installed on a power take-off rotating gear 11. A right harvester gear disk 1 and a left harvester gear disk 10 are symmetrically arranged on the support plate. A power take-off tooth 31 is installed on the top surface of the left harvester gear disk 10, and the power take-off tooth 31 meshes with the power take-off rotating gear 11. A fixed support 17 is installed in the middle of the cutting device. A middle rice anti-leakage fence 23 is installed on the fixed support 17. Rice support plates 30 are installed on both sides of the middle rice anti-leakage fence 23. The bottom of the rice support plate 30 is the rice cutting barrier 15, where the harvester cuts the rice. The left harvester gear disk 10 and the right fixed lifting lug 21 are separated. Located on both sides of the central rice paddy anti-leakage fence 23, the central rice paddy anti-leakage fence 23 is equipped with a rice board rotation limiting rod 12 on each side. A left fixed rice board rotating column 24 is installed on the left rice board rotating limiting rod 12, and a left rice board 9 is installed on the left fixed rice board rotating column 24. A return spring 14 is installed on the left rice board 9. A right fixed rice board rotating column 25 is equipped with a right rice board 3, and a right rice board movable part 16 is installed on the right rice board 3. A right harvester root seat male guide rail 28 is installed at the bottom of the right fixed rice board rotating column 25. A right harvester rotating chain 20 is placed inside the right harvester root seat male guide rail 28. A right grabbing claw 5 and a right harvester 4 are installed on the right harvester rotating chain 20. A right harvester root seat female guide rail 34 is installed at the bottom of the right fixed rice board rotating column 25. The left fixed… The bottom of the rice tray rotating column 24 is provided with a left harvester root seat male guide rail 27. The left harvester rotating chain 19 is placed inside the left harvester root seat male guide rail 27. The left harvester rotating chain 19 is provided with a left harvester 8 and a left grabbing claw 7, which are used to rotate to cut the rice stalks and grab the rice stalks back for harvesting. The left harvester rotating chain 19 and the right harvester rotating chain 20 also serve as fixing brackets for the grabbing claw seat female guide rail, and the chain tension can be adjusted. The bottom of the left fixed rice tray rotating column 24 is provided with a left harvester root seat female guide rail 26. Rice cutting blocking points 15 are provided on both sides of the middle rice anti-leakage fence 23. The bottoms of the left fixed rice tray rotating column 24 and the right fixed rice tray rotating column 25 are both located at the lower end 18 of the anti-leakage fence. Several force take-off points are provided at equal angles on the lower end 18 of the anti-leakage fence. The harvesting device is equipped with an inclined transfer support frame, one end of which is mounted on the power input shaft 58, and the other end is mounted on a fixing screw 54 via a bearing seat 74. A left transfer belt guide rail 32 and a right transfer belt guide rail 29 are respectively provided on both sides of the transfer support frame. The transfer belt is fixed between the left and right transfer belt guide rails 32 and 29. The transfer belt is equipped with anti-slip teeth 33 for rice to prevent it from sliding downhill. A chain link 13 is provided inside the transfer belt to fix the transfer belt pieces and also serves as the power connection to the harvesting system. The main input shaft 59 is connected to the bottom of the support frame to drive one end of the support frame to move up and down. A throttle movable connecting rod 66 is connected to the bottom of the transfer support frame.Simultaneously, the support plate is connected via the balance adjustment rod 52;
[0028] The control device includes a throttle operating lever 36, an operating lever fixing plate 37, a clutch operating lever 38, a track travel connecting rod 40, a throttle control connecting rod 41, a travel gear pump clutch operating lever 73, a track travel operating lever 84, a hand rest lever 85, a track travel hydraulic gear pump 86, a left track travel operating lever movable connecting rod 87, a track travel control valve assembly 88, a right track travel operating lever movable connecting rod 89, and a power take-off clutch 39. The power take-off clutch 39 is equipped with a power take-off shaft 72. The power take-off clutch 39 is poweredly connected to the power input gear 53. The track travel hydraulic gear pump 86 rotates to transfer hydraulic power to the right track travel operating lever movable connecting rod 89, the drive motor 47, the rotating shaft 45, and the power output shaft 44.
[0029] The number of the force-taking teeth 35 is 8.
[0030] The track support frame 68 is equipped with an adjustment support frame 51 for supporting the transfer belt.
[0031] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A rice harvester characterized by comprising: The harvesting device, the collecting device, the threshing device, the walking device, the driving device and the control device are included. The walking device includes a power output shaft, a power input shaft, a track drive gear fixing screw, a gear box fixing support, a track walking guide wheel, a rotating shaft, a walking track, a hydraulic motor fixing support, a driving motor, an intermediate support frame, a track overall support, and a track tensioning wheel. The walking track is sleeved on the track overall support. The track overall support bottom is provided with a plurality of track walking guide wheels. The track overall support top is provided with a track tensioning wheel. The track overall support is provided with an intermediate support frame. The track overall support is provided with a driving motor. The driving motor is connected with a rotating shaft. The rotating shaft is connected with the power output shaft. The power output shaft is provided with a plurality of power input shaft track drive gear fixing screws. The rotating shaft two ends are respectively provided with a gear box fixing support and a hydraulic motor fixing support. The driving device includes a positioning support frame, a diesel engine, a main force input shaft, a left grab claw right rotating gear, a walking gear pump clutch operating rod, an output belt pulley fixing screw, a walking hydraulic gear pump clutch operating rod movable coupling pull rod, a diesel engine belt pulley, a track walking movable coupling pull rod, a transfer belt power take-off clutch power input belt pulley, a walking gear pump hydraulic oil tank, a rotating belt, a walking gear pump clutch belt pulley, and a power input gear. The threshing device includes a threshing machine, a threshing net, a grain loading box, a straw outlet, and a threshing machine. The threshing net is arranged in the threshing machine. The threshing machine is provided with a straw outlet. The grain loading box is arranged at the bottom of the threshing machine. The harvesting device comprises a support plate, right harvesting knife rotating chains and left fixed lifting lugs arranged on both sides of the support plate, a power input shaft arranged on a power take-off rotating gear, the power take-off rotating gear arranged on the power input shaft, right and left harvesting gear plates arranged symmetrically on the support plate, power take-off gears arranged on the top surface of the left harvesting gear plate, the power take-off gears meshing with the power take-off rotating gear, a fixed support arranged in the middle of the cutting device, an intermediate paddy rice leak-proof fence arranged on the fixed support, paddy rice blocking positions arranged on both sides of the intermediate paddy rice leak-proof fence, harvesting knives cutting the paddy rice at the positions, the left and right harvesting gear plates arranged on both sides of the intermediate paddy rice leak-proof fence, paddy rice plate rotating limiting rods arranged on both sides of the intermediate paddy rice leak-proof fence, left fixed paddy rice plate rotating columns arranged on the left paddy rice plate rotating limiting rod, left paddy rice plates arranged on the left fixed paddy rice plate rotating columns, return springs arranged on the left paddy rice plates, right fixed paddy rice plate rotating columns arranged on the right paddy rice plate rotating limiting rod, right paddy rice plates arranged on the right fixed paddy rice plate rotating columns, right paddy rice plate movable positions arranged on the right paddy rice plates, right harvesting knife root seat female guide rails arranged at the bottom of the right fixed paddy rice plate rotating columns, the right harvesting knife rotating chains arranged in the right harvesting knife root seat female guide rails, right paddy rice grabbing claws and right harvesting knives arranged on the right harvesting knife rotating chains, left harvesting knife root seat female guide rails arranged at the bottom of the left fixed paddy rice plate rotating columns, left harvesting knife rotating chains arranged in the left harvesting knife root seat female guide rails, left harvesting knives and left paddy rice grabbing claws arranged on the left harvesting knife rotating chains, the left and right harvesting knife rotating chains used for rotating and cutting the paddy rice and grabbing the paddy rice back for harvesting, the left and right harvesting knife rotating chains also used as paddy rice plate grabbing claw seat female guide rail fixed supports, the chain tightness being adjustable, left harvesting knife root seat female guide rails arranged at the bottom of the left fixed paddy rice plate rotating columns, paddy rice blocking positions arranged on both sides of the intermediate paddy rice leak-proof fence, the left and right fixed paddy rice plate rotating columns arranged at the lower end of the leak-proof fence, a plurality of equiangularly distributed power take-off gears arranged on the lower end of the leak-proof fence, an inclined rotating and conveying support frame arranged on the harvesting device, one end of the rotating and conveying support frame arranged on the power input shaft and the other end of the rotating and conveying support frame arranged on a fixed screw through a bearing seat, left and right rotating and conveying belt guide rails arranged on both sides of the rotating and conveying support frame, rotating and conveying belts fixed between the left and right rotating and conveying belt guide rails, paddy rice anti-sliding gears arranged on the rotating and conveying belts for preventing the paddy rice from sliding downward, chain bones arranged in the rotating and conveying belts for fixing the rotating and conveying belt pieces and connecting the rotating and conveying belts to the harvesting system, the power input shaft and the support frame bottom end connected for driving the one end of the support frame to move up and down, the oil door movable connecting pull rod connected to the bottom of the rotating and conveying support frame, and the support plate connected through a balance adjusting rod. The control device comprises a throttle operating rod, an operating rod fixing plate, a clutch operating rod, a crawler walking coupling pull rod, a throttle control coupling pull rod, a walking gear pump clutch operating rod, a crawler walking operating rod, a hand rest rod, a crawler walking hydraulic gear pump, a left crawler walking operating rod movable coupling rod, a crawler walking control valve assembly, a right crawler walking operating rod movable coupling rod, a power take-off clutch, a power take-off shaft is arranged on the power take-off clutch, the power take-off clutch is connected with a power input gear in a power manner, the crawler walking hydraulic gear pump rotates to rotate and transmit hydraulic power to the right crawler walking operating rod movable coupling rod, a driving motor, a rotating shaft and a power output shaft. The number of the power take-off teeth is 8. An adjusting support frame is arranged on the whole crawler support, and is used for supporting the transmission belt.
Citation Information
Patent Citations
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CN109588106A
Chained straw header
CN202889973U