Double-disc horizontal reverse rotary three-dimensional shearing stubble cleaning unit
By combining the revolution and rotation of the double disc blades, the problem that existing stubble-cutting blades cannot completely crush stubble and straw is solved, achieving efficient stubble-cutting operation and low failure rate, while reducing power consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-31
AI Technical Summary
Existing stubble-crushing rotary tillage equipment has problems such as the inability to completely crush stubble and straw, straw tangling leading to frequent malfunctions, high power consumption, and high costs.
A dual-disc blade horizontal reverse rotary three-dimensional shearing stubble destroyer is designed. Through the combined revolution and rotation of the upper and lower shearing stubble destroying blades, three-dimensional shearing and crushing of root stubble and straw is achieved.
It improved the quality of stubble crushing, reduced power consumption, avoided straw entanglement problems, and improved the efficiency of machine use.
Smart Images

Figure CN119923993B_ABST
Abstract
Description
Technical Field
[0001] This invention pertains to agricultural machinery and mainly relates to a working component mounted on a rotary tillage and stubble-removing implement for stubble removal. Background Technology
[0002] Currently used rotary tillage machines for stubble removal mostly employ L-shaped or Y-shaped blades rotating vertically at high speed. While excavating the stubble from the seedbed soil, they simultaneously crush the stubble and straw using a striking principle. However, years of practical experience in production operations have revealed numerous problems with this method of stubble removal, including the inability to thoroughly crush stubble and straw, straw easily becoming entangled on the blades, frequent malfunctions, and reduced machine efficiency. In particular, the high power consumption and operating costs are technical issues that urgently need to be addressed. Summary of the Invention
[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of stubble silencing operations, to develop and design a double-disc blade horizontal reverse rotary three-dimensional shearing stubble silencing unit, so as to significantly improve the quality and effect of stubble silencing and crushing, reduce power consumption, and avoid and eliminate straw entanglement failures.
[0004] The objective of this invention is achieved as follows: A hollow motor is fixedly mounted on the lower end of a fixed mounting base. A disc seat is suspended and fixedly mounted on the lower side of the fixed mounting base via an upper frame. The drive shaft fixedly mounted on the hollow motor is rotatably inserted into the central hole of the disc seat. An annular guide rail, coaxial with the drive shaft, is fixedly mounted on the bottom surface of the disc seat. A roller is rotatably fitted into the guide groove of the annular guide rail. A spoke-type disc is fixedly mounted on the lower end of the drive shaft, located below the disc seat. A radial positioning shaft is fixedly mounted on the upper side of the outer end of the spoke-type disc. The upper end of the radial positioning shaft is rotatably inserted into the central hole of the roller. An electric motor is fixedly mounted on the lower side of the outer end of the spoke-type disc. A dumbbell-type cylindrical shaft is fixedly mounted coaxially on the lower end of the electric motor's power output shaft. A bushing is axially and radially positioned and rotatably fitted onto the lower side of the dumbbell-type cylindrical shaft. The grooved internal gear ring A and grooved internal gear ring B are respectively fixed on the upper part of the dumbbell-shaped cylindrical shaft and the upper part of the bushing. A cylindrical gear seat is fixed on the lower part of the outer end of the spoke-shaped disc through a lower frame. The cylindrical gear seat is located outside the grooved internal gear ring A and grooved internal gear ring B and encloses them. Wheel axle seat A and wheel axle seat B are respectively fixed on the inner wall of the cylindrical gear seat. Cylindrical gear A is rotatably mounted on wheel axle A through wheel axle A, and cylindrical gear B is rotatably mounted on wheel axle B through wheel axle B. Cylindrical gear A meshes with grooved internal gear ring A and cylindrical gear B respectively. Cylindrical gear B meshes with grooved internal gear ring B. The lower shearing stubble-cutting blade and the upper shearing stubble-cutting blade are respectively fixed on the lower end of the dumbbell-shaped cylindrical shaft and the bushing. Thus, a double-disc blade horizontal counter-rotating three-dimensional shearing stubble-cutting unit is formed.
[0005] This invention utilizes the shearing action generated by the horizontally opposite rotation of the upper and lower shearing blades mounted on the same axis to perform and complete the crushing of stubble and straw. It features a novel, unique, and reasonable structure, low power consumption, good work quality and effect, low failure rate, strong versatility, and wide applicability. Attached Figure Description
[0006] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a single stubble-cutting unit using a horizontal reverse rotary double-disc blade;
[0007] Figure 2 This is a two-dimensional schematic diagram of the overall structure of a single unit for horizontal reverse rotary three-dimensional shearing and stubble removal using a double-disc blade;
[0008] Figure 3 yes Figure 2 Sectional view along line A-A;
[0009] Figure 4 yes Figure 3 Enlarged view of part B;
[0010] Figure 5yes Figure 2 C-C sectional view;
[0011] Figure 6 yes Figure 5 Enlarged view of part D;
[0012] Figure 7 This is a schematic diagram of a dumbbell-shaped cylindrical shaft structure;
[0013] Figure 8 This is a schematic diagram of the assembly structure of the disc base, circular guide rail, rollers, and lifting rod;
[0014] Figure 9 This is a schematic diagram of a cylindrical gear seat structure.
[0015] Part number description in the image:
[0016] 1. Fixed mounting base; 2. Disc base; 3. Upper frame; 4. Spoke-type disc; 5. Electric motor; 6. Cylindrical gear seat; 7. Grooved internal gear ring A; 8. Upper shearing and stubble-removing blade; 9. Lower shearing and stubble-removing blade; 10. Lower frame; 11. Radial positioning shaft; 12. Drive shaft; 13. Hollow motor; 14. Circular guide rail; 15. Roller; 16. Dumbbell-type cylindrical shaft; 17. Cylindrical gear A; 18. Cylindrical gear B; 19. Grooved internal gear ring B; 20. Bushing; 21. Wheel and axle seat A; 22. Wheel and axle seat B; 23. Wheel and axle A; 24. Wheel and axle B. Detailed Implementation
[0017] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A double-disc blade horizontal reverse rotary three-dimensional shearing stubble destroyer comprises a hollow motor 13 fixedly mounted on the lower end of a fixed mounting base 1, and a fixed disc base 2 suspended from the lower side of the fixed mounting base 1 by an upper frame 3. A drive shaft 12 fixedly mounted on the hollow motor 13 is rotatably inserted into the central hole of the disc base 2. A fixed annular guide rail 14, coaxial with the drive shaft 12, is fixedly mounted on the bottom end surface of the disc base 2, and rollers 15 are rotatably engaged in the guide grooves of the annular guide rail 14. A spoked disc 4 is fixedly mounted on the lower end of the drive shaft 12, below the disc base 2. A radial positioning shaft 11 is fixedly mounted on the upper side of the outer end of the spoked disc 4. The upper end of the radial positioning shaft 11 is rotatably inserted into the center hole of the roller 15. An electric motor 5 is fixedly mounted on the lower side of the outer end of the spoked disc 4. A dumbbell-shaped cylindrical shaft 16 is coaxially fixed on the lower end of the power output shaft of the electric motor 5. A bushing 20 is axially and radially positioned and circumferentially rotatable. On the lower side of the dumbbell-shaped cylindrical shaft 16, grooved internal gear rings A7 and B19 are respectively fixed on the upper side of the dumbbell-shaped cylindrical shaft 16 and the upper side of the bushing 20. A cylindrical gear seat 6 is fixed on the lower side of the outer end of the spoke-shaped disc 4 via a lower frame 10. The cylindrical gear seat 6 is located outside the grooved internal gear rings A7 and B19, enclosing them. A wheel axle seat A21 and a wheel are respectively fixed on the inner wall of the cylindrical gear seat 6. A cylindrical gear A17 is rotatably mounted on a wheel axle seat A21 via a wheel axle A23, and a cylindrical gear B18 is rotatably mounted on a wheel axle seat B22 via a wheel axle B24. The cylindrical gear A17 meshes with the grooved internal gear ring A7 and the cylindrical gear B18 respectively, and the cylindrical gear B18 meshes with the grooved internal gear ring B19. The lower shearing and stubble-cutting blade 9 and the upper shearing and stubble-cutting blade 8 are fixedly mounted on the lower ends of the dumbbell-shaped cylindrical shaft 16 and the bushing 20 respectively.
[0018] During operation, the unit is fixed to the stubble-cutting implement using the fixed mounting base 1 and moves forward randomly. The hollow motor 13 drives the spoke-type disc 4 through the drive shaft 12 to rotate in a circular manner under the control of the annular guide rail 14, roller 15, and radial positioning shaft 11 on the disc base 2. The rotating spoke-type disc 4 drives the lower shearing stubble-cutting blade 9 and the upper shearing stubble-cutting blade 8 to revolve around the axis of the drive shaft 12 through the dumbbell-type cylindrical shaft 16 and the bushing 20. Simultaneously, one rotational power source of the electric motor 5 drives the lower shearing stubble-crushing cutter head 9 to rotate horizontally via the dumbbell-shaped cylindrical shaft 16. The other rotational power source of the electric motor 5 sequentially drives the upper shearing stubble-crushing cutter head 8 to rotate in the opposite direction to the lower shearing stubble-crushing cutter head 9 via the dumbbell-shaped cylindrical shaft 16, the grooved internal gear ring A7, the cylindrical gear A17, the cylindrical gear B18, the grooved internal gear ring B19, and the bushing 20, thus completing the three-dimensional shearing and crushing operation of the stubble and straw. During operation, the combined revolution and rotation of the upper and lower shearing stubble-crushing cutter heads 8 and 9 ensures and improves the effectiveness and quality of the crushing and stubble-crushing operation, preventing any omissions.
Claims
1. A type of double-disc blade horizontal reverse rotary three-dimensional shearing stubble destroyer, characterized in that: Hollow motor (13) is fixed on the lower end of fixed mounting base (1), disc seat (2) is hung and fixed through upper frame (3) on the lower part of fixed mounting base (1), driving shaft (12) fixed on hollow motor (13) is rotatably inserted into the center hole of disc seat (2), circular guide rail (14) is fixed on the coaxial center of the bottom end surface of disc seat (2), roller (15) is rotatably clamped in the guide rail groove of circular guide rail (14), spoke disc (4) is fixed on the outer end upper side of spoke disc (4), the upper end of radial positioning shaft (11) is rotatably inserted into the center hole of roller (15), electric motor (5) is fixed on the outer end lower side of spoke disc (4), dumbbell cylindrical shaft (16) is coaxially fixed on the lower end of power output shaft of electric motor (5), shaft sleeve (20) is axially and radially positioned, and is rotatably sleeved on the lower side of dumbbell cylindrical shaft (16), groove-shaped inner tooth ring A (7) and groove-shaped inner tooth ring B (19) are respectively fixed on the upper side of dumbbell cylindrical shaft (16) and the upper side of shaft sleeve (20), cylindrical gear seat (6) is fixed on the outer end lower side of spoke disc (4) through lower frame (10), the cylindrical gear seat (6) is located outside groove-shaped inner tooth ring A (7) and groove-shaped inner tooth ring B (19) and contains them, wheel shaft seat A (21) and wheel shaft seat B (22) are respectively fixed on the inner side wall of cylindrical gear seat (6), cylindrical gear A (17) is rotatably installed on wheel shaft seat A (21) through wheel shaft A (23), cylindrical gear B (18) is rotatably installed on wheel shaft seat B (22) through wheel shaft B (24), the cylindrical gear A (17) is respectively engaged with groove-shaped inner tooth ring A (7) and cylindrical gear B (18), cylindrical gear B (18) is engaged with groove-shaped inner tooth ring B (19), lower shear stubble cutter disc (9) and upper shear stubble cutter disc (8) are respectively fixed on the lower end of dumbbell cylindrical shaft (16) and shaft sleeve (20).
Citation Information
Patent Citations
Vertical spiral and opening-closing combined stubble cleaning device
CN113016330A
High-precision paddy bowl seedling raising disk seeding apparatus
WO2014063265A1