Horizontal reverse rotary type three-dimensional shearing stubble cleaning single body with double cutting discs

By designing a double disc knife horizontal reverse rotary three-dimensional shearing stubble single unit, the existing stubble rotary tillage machine has solved the problems of low efficiency, many faults and high cost when crushing root stubble and straw, and achieved efficient and low fault crushing effect.

CN119923993AActive Publication Date: 2025-05-06NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202510345091.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2025-05-06
Estimated Expiration
2045-03-24

AI Technical Summary

Technical Problem

The existing stubble-killing tools of the stubble-killing machine have problems such as incomplete crushing of root stubble and straw, easy to wrap around, frequent failures, large power consumption and high cost.

Method used

A double disc knife horizontal reverse rotation three-dimensional shearing and stubble single unit is designed to generate shearing action through horizontal reverse rotation between the upper and lower shearing and stubble cutting blades installed in the upper and lower parts of the coaxial center, and the crushing operation of root stubble and straw is completed.

Benefits of technology

It has achieved a significant improvement in the quality and effect of stubble crushing, reduced power consumption, avoided straw winding failure, and reduced the usage failure rate and operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a double-disc-cutter horizontal reverse rotation type three-dimensional shearing stubble cleaning single body, and belongs to agricultural machinery. The hollow motor and the disc seat are fixedly mounted on the lower portion of the fixed mounting seat, a driving shaft on the hollow motor is rotatably inserted into a center hole of the disc seat, the spoke type disc is fixedly mounted on the driving shaft, and the spoke type disc is connected with an annular guide rail fixedly mounted on the bottom face of the disc seat through a radial positioning shaft and a roller. The electric motor is fixedly installed on the lower side portion of the outer end of the spoke type disc, the dumbbell type cylindrical shaft is fixedly installed on the lower end portion of a power output shaft of the electric motor, the shaft sleeve is rotatably installed on the lower side portion of the dumbbell type cylindrical shaft in a sleeved mode, and the groove-shaped inner gear ring A and the groove-shaped inner gear ring B are fixedly installed on the upper side portion of the dumbbell type cylindrical shaft and the upper side portion of the shaft sleeve respectively. The lower shearing stubble cleaning cutter head and the upper shearing stubble cleaning cutter head are fixedly arranged on the lower side parts of the dumbbell type cylindrical shaft and the shaft sleeve respectively; an electric motor is connected with the shaft sleeve through groove-shaped inner gear rings A and B and cylindrical gears A and B; the single body is good in operation quality and effect, low in power consumption and few in operation use faults.
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Description

Technical Field

[0001] The invention belongs to agricultural machinery, and mainly relates to an operating component which is mounted on a rotary tillage and stubble destroying machine and is used for destroying stubble. Background Art

[0002] The stubble-killing knives on the current stubble-killing rotary tillage machines mostly use L-shaped blades or Y-shaped blades to rotate vertically at high speed. While digging the stubble out of the soil of the seed bed, the stubble and straw are crushed by the principle of beating. In the practice of many years of production operations, it is found that this type of stubble-killing operation mode and principle not only has many problems such as the inability to completely crush the stubble and straw, the straw is easily entangled on the knives, there are many operational failures, and the efficiency of the machine is reduced, especially there are technical problems such as high power consumption and high operation costs that need to be solved urgently. Summary of the invention

[0003] The purpose of the present invention is to address the problems existing in the above-mentioned prior art, combine with the actual needs of stubble removal operations, and develop and design a double-disc knife horizontal reverse rotating three-dimensional shearing stubble removal unit, so as to greatly improve the stubble removal and crushing quality and effect, reduce power consumption, and avoid and eliminate the occurrence of straw entanglement failures.

[0004] The purpose of the invention is achieved in this way: a hollow motor is fixed on the lower end of the fixed mounting seat, a disc seat is fixedly mounted on the lower side of the fixed mounting seat by hanging through an upper frame, a driving shaft fixed on the hollow motor can be rotatably inserted into the center hole of the disc seat, a fixed annular guide rail coaxial with the driving shaft is installed on the bottom end surface of the disc seat, and a roller can be rotatably clamped in the guide rail groove of the annular guide rail, a spoke-type disc is fixed on the lower end of the driving shaft and located below the disc seat, a radial positioning shaft is fixed on the upper side of the outer end of the spoke-type disc, the upper end of the radial positioning shaft can be relatively rotatably inserted into the center hole of the roller, an electric motor is fixed on the lower side of the outer end of the spoke-type disc, a dumbbell-type cylindrical shaft coaxially fixed on the lower end of the power output shaft of the electric motor, and a sleeve is axially and radially positioned and circumferentially rotatably mounted on the lower side of the dumbbell-type cylindrical shaft. On the upper part, the grooved inner gear ring A and the grooved inner gear ring B are respectively fixed on the upper side of the dumbbell-type cylindrical shaft and the upper side of the sleeve, and a cylindrical gear seat is fixedly installed on the lower side of the outer end of the spoke-type disc through a lower frame, and the cylindrical gear seat is located on the outside of the grooved inner gear ring A and the grooved inner gear ring B to enclose them, and an axle seat A and an axle seat B are respectively fixed on the inner wall surface of the cylindrical gear seat, and the cylindrical gear A is rotatably installed on the axle seat A through the axle A, and the cylindrical gear B is rotatably installed on the axle seat B through the axle B, the cylindrical gear A is respectively meshed with the grooved inner gear ring A and the cylindrical gear B, and the cylindrical gear B is meshed with the grooved inner gear ring B, and a lower shearing stubble-killing knife disc and an upper shearing stubble-killing knife disc are respectively fixedly installed on the lower end of the dumbbell-type cylindrical shaft and the sleeve, thereby forming a double-disc knife horizontal reverse rotating three-dimensional shearing stubble-killing monomer.

[0005] The invention adopts the shearing action generated by the horizontal reverse rotation between the upper and lower shearing stubble cutting discs installed at the upper and lower parts of the same axis to carry out and complete the stubble and straw crushing operation, and has the characteristics of novel, unique and reasonable structure, low power consumption, good operation quality and effect, low failure rate in use, strong versatility and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a double disc knife horizontal reverse rotary three-dimensional shearing stubble-cutting unit;

[0007] Figure 2 It is a two-dimensional schematic diagram of the overall structure of a double disc knife horizontal reverse rotary three-dimensional shearing stubble-cutting unit;

[0008] Figure 3 yes Figure 2 A-A sectional view;

[0009] Figure 4 yes Figure 3 A magnified view of part B;

[0010] Figure 5yes Figure 2 C-C section view;

[0011] Figure 6 yes Figure 5 A magnified view of the D portion;

[0012] Figure 7 It is a schematic diagram of the dumbbell-type cylindrical shaft structure;

[0013] Figure 8 It is a schematic diagram of the assembly structure of the disc seat, the circular guide rail, the roller and the suspension rod;

[0014] Fig. 9 It is a schematic diagram of the cylindrical gear seat structure.

[0015] Description of part numbers in the figure:

[0016] 1. Fixed mounting seat, 2. Disc seat, 3. Upper frame, 4. Spoke disc, 5. Electric motor, 6. Cylindrical gear seat, 7. Grooved inner gear ring A, 8. Upper shearing stubble-killing disc, 9. Lower shearing stubble-killing disc, 10. Lower frame, 11. Radial positioning shaft, 12. Drive shaft, 13. Hollow motor, 14. Circular guide rail, 15. Roller, 16. Dumbbell cylindrical shaft, 17. Cylindrical gear A, 18. Cylindrical gear B, 19. Grooved inner gear ring B, 20. Bushing, 21. Axle seat A, 22. Axle seat B, 23. Axle A, 24. Axle B. DETAILED DESCRIPTION

[0017] The following is a detailed description of the implementation scheme of the invention with reference to the accompanying drawings. A double disc blade horizontal reverse rotary three-dimensional shearing stubble-cutting unit, a hollow motor 13 is fixed on the lower end of a fixed mounting seat 1, a disc seat 2 is suspended and fixed on the lower side of the fixed mounting seat 1 through an upper frame 3, a drive shaft 12 fixed on the hollow motor 13 is rotatably inserted into the center hole of the disc seat 2, a circular guide rail 14 is fixed on the bottom end surface of the disc seat 2 and is coaxial with the drive shaft 12, and a roller 15 is rotatably clamped in the guide groove of the circular guide rail 14 A spoke-type disc 4 is fixedly mounted on the lower end of the driving shaft 12 and located below the disc seat 2. A radial positioning shaft 11 is fixedly mounted on the upper side of the outer end of the spoke-type disc 4. The upper end of the radial positioning shaft 11 is relatively 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 spoke-type disc 4. A dumbbell-type cylindrical shaft 16 is coaxially fixedly mounted on the lower end of the power output shaft of the electric motor 5. A sleeve 20 is axially and radially positioned and circumferentially rotatable. On the lower side of the dumbbell-shaped cylindrical shaft 16, the grooved inner gear ring A7 and the grooved inner gear ring B19 are respectively fixed on the upper side of the dumbbell-shaped cylindrical shaft 16 and the upper side of the sleeve 20. On the lower side of the outer end of the spoke-shaped disc 4, a cylindrical gear seat 6 is fixedly installed through a lower frame 10. The cylindrical gear seat 6 is located outside the grooved inner gear ring A7 and the grooved inner gear ring B19 to contain them. On the inner wall surface of the cylindrical gear seat 6, a wheel axle seat A21 and a wheel axle seat A22 are respectively fixed. Axle seat B22, a cylindrical gear A17 is rotatably mounted on the axle seat A21 via the axle A23, a cylindrical gear B18 is rotatably mounted on the axle seat B22 via the axle B24, the cylindrical gear A17 is respectively meshed with the grooved internal gear ring A7 and the cylindrical gear B18, the cylindrical gear B18 is meshed with the grooved internal gear ring B19, and a lower shearing stubble-killing blade 9 and an upper shearing stubble-killing blade 8 are respectively fixed on the lower ends of the dumbbell-type cylindrical shaft 16 and the bushing 20.

[0018] During operation, the unit is fixed on the stubble-killing machine by using the fixed mounting seat 1 and moves forward randomly. The hollow motor 13 drives the spoke-type disc 4 to rotate in a circle under the control of the annular guide rail 14, roller 15 and radial positioning shaft 11 on the disc seat 2 through the driving shaft 12. The rotating spoke-type disc 4 drives the lower shearing stubble-killing disc 9 and the upper shearing stubble-killing disc 8 to perform a revolution around the axis of the driving shaft 12 as a whole through the dumbbell-type cylindrical shaft 16 and the shaft sleeve 20. At the same time, one rotational power of the electric motor 5 drives the lower shearing stubble-killing blade disc 9 to complete horizontal rotation through the dumbbell-shaped cylindrical shaft 16, and the other rotational power of the electric motor 5 drives the upper shearing stubble-killing blade disc 8 to complete the rotational movement in the opposite direction of the rotation direction of the lower shearing stubble-killing blade disc 9 through 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 shaft sleeve 20, thereby completing the three-dimensional scissor-like shearing and crushing operation of the root stubble and straw. During the operation, the combined revolution and rotation of the upper and lower shearing stubble-killing blade discs 8 and 9 ensure and improve the effect and quality of the crushing and stubble-killing operation, and no omission occurs.

Claims

1. A double disc knife horizontal reverse rotary three-dimensional shearing stubble-cutting unit, characterized by: A hollow motor (13) is fixedly mounted on the lower end of the fixed mounting seat (1); a disc seat (2) is suspended and fixedly mounted on the lower side of the fixed mounting seat (1) through an upper frame (3); a drive shaft (12) fixedly mounted on the hollow motor (13) is rotatably inserted into a central hole of the disc seat (2); a circular guide rail (14) coaxial with the drive shaft (12) is fixedly mounted on the bottom end surface of the disc seat (2); a roller (15) is rotatably clamped in a guide rail groove of the circular guide rail (14); and a roller (15) is rotatably clamped in a guide rail groove of the circular guide rail (14). A spoke-type disc (4) is fixedly mounted at the lower part of the seat (2), a radial positioning shaft (11) is fixedly mounted on the upper side of the outer end of the spoke-type disc (4), the upper end of the radial positioning shaft (11) is relatively rotatably inserted into the central hole of the roller (15), an electric motor (5) is fixedly mounted on the lower side of the outer end of the spoke-type disc (4), a dumbbell-type cylindrical shaft (16) is coaxially fixedly mounted on the lower end of the power output shaft of the electric motor (5), and a shaft sleeve (20) is axially and radially positioned and circumferentially rotatably sleeved on the lower side of the dumbbell-type cylindrical shaft (16). A grooved inner gear ring A (7) and a grooved inner gear ring B (19) are respectively fixedly mounted on the upper side of the dumbbell-shaped cylindrical shaft (16) and the upper side of the shaft sleeve (20); a cylindrical gear seat (6) is fixedly mounted on the lower side of the outer end of the spoke-shaped disc (4) through a lower frame (10); the cylindrical gear seat (6) is located outside the grooved inner gear ring A (7) and the grooved inner gear ring B (19) to contain them; a wheel axle seat A (21) and a wheel axle seat B (22) are respectively fixedly mounted on the inner side wall of the cylindrical gear seat (6); A cylindrical gear A (17) is rotatably mounted on the seat A (21) via a wheel shaft A (23), and a cylindrical gear B (18) is rotatably mounted on the wheel shaft seat B (22) via a wheel shaft B (24). The cylindrical gear A (17) is meshed with a grooved internal gear ring A (7) and a cylindrical gear B (18), respectively, and the cylindrical gear B (18) is meshed with a grooved internal gear ring B (19). A lower shearing stubble-killing blade disc (9) and an upper shearing stubble-killing blade disc (8) are respectively fixed to the lower ends of the dumbbell-shaped cylindrical shaft (16) and the shaft sleeve (20).

Citation Information

Patent Citations

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  • Vertical spiral and opening-closing combined stubble cleaning device

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  • All-in-one machine capable of killing stubbles, spreading fertilizer and returning straw to field in rotary burying mode

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  • Common vertical shaft forward and reverse rotation stubble crushing device

    CN114731786A

  • Device for cutting stubbles by coaxial forward and reverse rotation bionic knife and synchronously cutting roots by telescopic knife

    CN118044363A