A low-disturbance soil ridge working rootstock processing device with adjustable cutter posture
Patent Information
- Application Number
- CN202511071439.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2045-07-31
AI Technical Summary
[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: the camera detects the stubble posture and transmits the information to the controller, which controls the telescopic motor to extend and retract, changing the relative position of the vertical position of the inner and outer shafts of the stubble cutter. The spring between the inner and outer shafts of the stubble cutter resets the blade, thus achieving automatic adjustment of the stubble cutter angle. The blade of the stubble cutter is designed as a variable-angle L-shape with serrations in the rear half to prevent the stubble from slipping during cutting. The swinging root cutting and sweeping device uses a crank-slider mechanism to swing the root cutting blade, avoiding the soil between the roots and stubble and reducing soil disturbance. At the same time, the motor controls the linkage to drive the ratchet to rotate, achieving intermittent rotation of the root sweeping rake, sweeping the residual roots in the soil into the furrow, and completing the stubble cutting, root sweeping, and ridge cleaning under low-disturbance soil conditions.
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Figure CN120731746B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a low-disturbance soil ridge stubble treatment device with adjustable cutter posture, belonging to the field of agricultural machinery technology. Background Technology
[0002] After harvest, a large number of root stubbles of various shapes remain in the field, which increases the difficulty of mechanized processing. Existing root stubble processing devices have poor root stubble crushing effect and excessive soil disturbance during root cutting, affecting subsequent field operations and soil moisture retention.
[0003] Summary of the Invention: The purpose of this invention is to address the aforementioned technical problems by developing a low-disturbance soil ridge root stubble treatment device with adjustable cutter posture. This device automatically adjusts the cutter angle using a camera, controller, retractable motor, and cutter angle adjustment mechanism. It utilizes a crank-slider and ratchet mechanism in conjunction with a root sweeping rake to achieve oscillating root cutting and sweeping. The invention achieves its purpose as follows: A low-disturbance soil ridge root stubble treatment device with adjustable cutter posture, characterized in that: the device includes an automatically adjustable angle cutting device and an oscillating root cutting and sweeping device. The automatically adjustable angle cutting device is located at the front end of the platform, and the oscillating root cutting and sweeping device is located at the rear end of the platform. To solve the above technical problems, this invention adopts the following solution:
[0004] A low-disturbance soil ridge root treatment device with adjustable cutter posture includes a frame, an automatic angle-adjustable stubble-cutting device, and a swinging root-cutting and sweeping device. A three-point suspension frame is installed on the upper front of the frame, the automatic angle-adjustable stubble-cutting device is located at the lower front of the frame, and the swinging root-cutting and sweeping device is located at the rear of the frame.
[0005] The automatic angle-adjustable stubble-cutting device is characterized by the following: the entire mechanism is mounted below the front end of the frame, directly below the three-point suspension bracket. The second power supply is fixedly mounted on the left side of the front end of the frame, the controller is fixedly mounted on the right side, and the camera is fixedly mounted in a groove at the front end of the frame. The upper ends of the first and second motors are respectively fixedly mounted in the shaft bodies at the front end of the frame. The controller, camera, and second motor are connected by wires. The first motor, second motor, camera, and controller are all connected to the second power supply via wires. The second rotating shaft is coaxially fixedly mounted with the connecting rod. The telescopic shaft is slidably mounted in a circular groove above the outer shaft of the stubble-cutting blade. The telescopic shaft is fixedly mounted to the power output end of the second motor. The connecting rod is fixed in the central groove of the outer shaft of the shaving knife. Each of its four bottom sides has a crossbar that is fixed to a hole on the inner surface of the inner shaft of the shaving knife. The inner shaft of the shaving knife is rotatably and concentrically installed inside the outer shaft of the shaving knife. The two ends of the spring are fixed to the lower surface of the inner shaft of the shaving knife and the upper surface of the base plate of the outer shaft of the shaving knife. The inner shaft and the outer shaft of the shaving knife are respectively provided with four circular grooves and annular grooves in the circumference. The first tool angle changing shaft and the second tool angle changing shaft are fixed on one side of the variable angle L-shaped toothed shaving knife. The first tool angle changing shaft is hinged to the circular groove, and the second tool angle changing shaft is hinged to the annular groove. The entire shaving mechanism is circumferentially equipped with four identical variable angle L-shaped toothed shaving knives.
[0006] The oscillating root-cutting mechanism is characterized by a second round shaft fixedly mounted on a frame, a crank-slider base and a ratchet rotatably mounted on the second round shaft, five root-sweeping rakes fixedly mounted on the five teeth of the ratchet via root-sweeping rake fixing shafts, a first round shaft fixedly mounted on the crank-slider base, pawls concentrically fixedly mounted on the first round shaft, a symmetrical Y-shaped root-cutting blade fixedly mounted directly below the crank-slider base, a slider slidably mounted in a groove in the crank-slider base, a slider fixedly mounted to a connecting rod, a connecting rod fixedly mounted to a first rotating shaft, a first rotating shaft fixedly mounted to the power output end of a third motor, a third motor connected to a first power source via wires, and a first power source fixedly mounted in a groove at the rear end of the frame.
[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: the camera detects the stubble posture and transmits the information to the controller, which controls the telescopic motor to extend and retract, changing the relative position of the vertical position of the inner and outer shafts of the stubble cutter. The spring between the inner and outer shafts of the stubble cutter resets the blade, thus achieving automatic adjustment of the stubble cutter angle. The blade of the stubble cutter is designed as a variable-angle L-shape with serrations in the rear half to prevent the stubble from slipping during cutting. The swinging root cutting and sweeping device uses a crank-slider mechanism to swing the root cutting blade, avoiding the soil between the roots and stubble and reducing soil disturbance. At the same time, the motor controls the linkage to drive the ratchet to rotate, achieving intermittent rotation of the root sweeping rake, sweeping the residual roots in the soil into the furrow, and completing the stubble cutting, root sweeping, and ridge cleaning under low-disturbance soil conditions. Attached Figure Description
[0008] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:
[0009] Figure 1 A schematic diagram of a low-disturbance soil ridge stubble treatment device with adjustable blade posture.
[0010] Figure 2 Schematic diagram of the angle-adjustable cutting mechanism
[0011] Figure 3 Schematic diagram of the internal structure of the angle-adjustable cutting mechanism
[0012] Figure 4 Schematic diagram of the swing-type root cutting and sweeping mechanism
[0013] Part numbers in the diagram: 1. Ratchet, 2. Pawl, 3. Root rake, 4. First round shaft, 5. Crank slider base, 6. Second round shaft, 7. Stand, 8. First power supply, 9. Three-point suspension bracket, 10. Controller, 11. Wire connector, 12. Camera, 13. First motor, 14. Second motor, 15. Variable angle L-shaped toothed stubble cutter, 16. Connecting rod, 17. Inner shaft of stubble cutter, 18. Outer shaft of stubble cutter, 19. First cutter angle transformation shaft, 20. Second cutter angle transformation shaft, 21. Circular groove, 22. Root cutter, 23. Second power supply, 24. Third motor, 25. Connecting rod, 26. Slider, 27. Root rake fixing shaft, 28. First rotating shaft, 29. Second rotating shaft, 30. Telescopic shaft, 31. Spring, 32. Circular groove, 33. Annular groove Detailed Implementation
[0014] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. A low-disturbance soil ridge root stubble treatment device with adjustable cutter posture includes a frame 7, an automatic angle adjustment cutting device, and a swinging root cutting and sweeping device. A three-point suspension frame 9 is installed on the upper front end of the frame 7, the automatic angle adjustment cutting device is located at the lower front end of the frame 7, and the swinging root cutting and sweeping device is located at the rear end of the frame 7.
[0015] The automatic angle-adjusting stubble-cutting mechanism is characterized by the following: the entire mechanism is mounted below the front end of the frame 7; the second power supply 23 is fixedly mounted on the left side of the front end of the frame 7; the controller 10 is fixedly mounted on the right side of the front end of the frame 7; the camera 12 is fixedly mounted in the groove at the front end of the frame 7; the upper ends of the first motor 13 and the second motor 14 are respectively fixedly mounted in the shaft body at the front end of the frame 7; the controller 10, the camera 12, and the second motor 14 are connected by wires; the first motor 13, the second motor 14, the camera 12, and the controller 10 are all connected to the second power supply 23 by wires; the second rotating shaft 29 is coaxially fixedly mounted with the connecting rod 16; the second rotating shaft 29 is fixedly mounted with the power output end of the first motor 13; and the telescopic shaft 30 is slidably mounted in the circular groove 21 above the outer shaft 18 of the stubble-cutting blade; the telescopic shaft 30 is connected to the power output end of the second motor 14. The output end is fixedly mounted, and the connecting rod 16 is fixedly mounted in the central groove of the outer shaft 18 of the shaving knife. Each of its four bottom sides has a crossbar fixedly mounted to the hole on the inner surface of the inner shaft 17 of the shaving knife. The inner shaft 17 of the shaving knife is rotatably and concentrically mounted inside the outer shaft 18 of the shaving knife. The two ends of the spring 31 are fixedly mounted to the lower surface of the inner shaft 17 of the shaving knife and the upper surface of the bottom plate of the outer shaft 18 of the shaving knife, respectively. The inner shaft 17 of the shaving knife and the outer shaft 18 of the shaving knife are respectively provided with four circular grooves 32 and annular grooves 33 in the circumference. The first tool angle changing shaft 19 and the second tool angle changing shaft 20 are fixedly mounted on one side of the variable angle L-shaped toothed shaving knife 15. The first tool angle changing shaft 19 is hinged to the circular groove 32, and the second tool angle changing shaft 20 is hinged to the annular groove 33. The entire shaving mechanism is circumferentially mounted with four identical variable angle L-shaped toothed shaving knives 15.
[0016] The oscillating root-cutting mechanism is characterized by the second round shaft 6 being fixedly mounted on the frame 7, the crank-slider base 5 and the ratchet 1 being rotatably mounted on the second round shaft 6, the five root-sweeping rakes 3 being fixedly mounted on the five teeth of the ratchet 1 respectively via root-sweeping rake fixing shafts 27, the first round shaft 4 being fixedly mounted on the crank-slider base 5, the pawl 2 being concentrically fixed on the first round shaft 4, the root-cutting blade 22 being symmetrically Y-shaped and fixedly mounted directly below the crank-slider base 5, the slider 26 being slidably mounted in the groove of the crank-slider base 5, the slider 26 being fixedly mounted to the connecting rod 25, the connecting rod 25 being fixedly mounted to the first rotating shaft 28, the first rotating shaft 28 being fixedly mounted to the power output end of the third motor 24, the third motor 24 being connected to the first power supply 8 via wires, and the first power supply 8 being fixedly mounted in the groove at the rear end of the frame 7.
[0017] During operation, the power unit propels the device forward via the three-point suspension frame 9. The second power source 23 supplies power to the first motor 13, which in turn drives the second rotating shaft 29 to rotate. The rotation of the second rotating shaft 29 drives the connecting rod 16 to rotate, which in turn drives the inner shaft 17 of the stubble cutter to rotate. The inner shaft 17 of the stubble cutter drives the outer shaft 18 of the stubble cutter to rotate via the circular groove 32, thereby driving the variable-angle L-shaped toothed stubble cutter 15 to rotate. The rear half of the variable-angle L-shaped toothed stubble cutter 15 has serrations, which increase the distance between the variable-angle L-shaped toothed stubble cutter 15 and the stubble. Friction prevents the stubble from slipping during rotational cutting. When camera 12 detects a change in the stubble's posture, it transmits the image information to controller 10 via wire. Controller 10 controls second motor 14 to drive telescopic shaft 30 to extend, applying pressure to the bottom surface of circular groove 21. This drives outer shaft 18 of the stubble cutter to slide axially downward relative to inner shaft 17. During this process, second cutter angle changing shaft 20 slides within annular groove 33 on outer shaft 18, while first cutter angle changing shaft 19 rotates within circular groove 32 on inner shaft 17, thereby changing the variable angle. The cutting angle of the L-shaped toothed shaving cutter 15 is similar. When the cutting angle needs to be changed again, the telescopic shaft 30 shortens, and the outer shaft 18 of the shaving cutter is reset upward under the elastic force of the internal spring 31. The variable angle L-shaped toothed shaving cutter 15 returns to its original angle, satisfying the high-quality crushing of shavings with different postures. The first power supply 8 supplies power to the third motor 24. The third motor 24 drives the connecting rod 25 to rotate through the first rotating shaft 28. The rotation of the connecting rod 25 drives the slider 26 to slide up and down in the track of the crank block base 5. Since the crank block base 5 is rotatable... Installed on the second circular shaft 6, it can synchronously drive the crank slider base 5 to swing around the second circular shaft 6, and then drive the root cutting knife 22 to swing to cut the roots. During the swinging process, the root cutting knife 22 can avoid the soil between the root stubble. The root cutting knife 22 is Y-shaped, and can fully cut off the root part of the root stubble during the left and right swing. At the same time, when the crank slider base 5 swings left and right, it drives the pawl 2 to rotate around the first circular shaft 4, and then drives the ratchet 1 to rotate through a certain angle. The rotation of the ratchet 1 drives the root sweeping rake fixed shaft 27 to rotate, and then drives the root sweeping rake 3 to rotate, and simultaneously sweeps the chopped residual roots in the ridge from the soil into the furrow.
[0018] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0019] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-disturbance soil ridge stubble treatment device with adjustable cutter posture, characterized in that: The device includes a frame, an automatic angle-adjustable stubble-cutting device located at the front end of the frame, and a swing-type root-cutting and sweeping device located at the rear end of the frame. A second power supply is fixedly mounted on the left side of the front end of the frame, a controller is fixedly mounted on the right side of the front end of the frame, a camera is fixedly mounted in a groove at the front end of the frame, the upper ends of the first motor and the second motor are respectively fixedly mounted in the shaft body at the front end of the frame, a second rotating shaft is coaxially fixedly mounted with a connecting rod, and the second rotating shaft is fixedly mounted with the power output end of the first motor. A telescopic shaft is slidably mounted in a circular groove above the outer shaft of the stubble-cutting blade, and the telescopic shaft is fixedly mounted with the power output end of the second motor. The connecting rod is fixedly mounted at the center of the outer shaft of the stubble-cutting blade. Within the groove, each of its four bottom surfaces has a crossbar fixed to a hole on the inner surface of the inner shaft of the cutting knife. The inner shaft of the cutting knife is rotatably and concentrically mounted inside the outer shaft of the cutting knife. The two ends of the spring are fixed to the lower surface of the inner shaft and the upper surface of the base plate of the outer shaft, respectively. The inner and outer shafts of the cutting knife each have four circular and annular grooves circumferentially arranged. A first and second tool angle changing shaft are fixedly mounted on one side of the variable-angle L-shaped toothed cutting knife. The first tool angle changing shaft is hinged to the circular groove, and the second tool angle changing shaft is hinged to the annular groove. The entire cutting mechanism has four identical variable-angle cutting knives circumferentially mounted. The L-shaped toothed stubble cutter uses a camera to detect the stubble's posture and transmits the information to a controller. This controller then extends and retracts a second motor, changing the relative vertical positions of the inner and outer shafts of the stubble cutter, thus automatically adjusting the stubble cutter angle. A second cylindrical shaft is fixed to a frame, and both the crank-slider base and the ratchet are rotatably mounted on it. Five root-sweeping rakes are fixed to the five teeth of the ratchet via root-sweeping rake fixing shafts. A first cylindrical shaft is fixed to the crank-slider base, and a pawl is concentrically fixed to the first cylindrical shaft. The stubble cutter is symmetrically Y-shaped and fixed directly below the crank-slider base. The slider can slide... The device is mounted in the groove of the crank-slider base. The slider is fixed to the connecting rod, the connecting rod is fixed to the first rotating shaft, the first rotating shaft is fixed to the power output end of the third motor, and the first power supply is fixed in the groove at the rear end of the frame. The third motor drives the connecting rod to rotate through the first rotating shaft. The rotation of the connecting rod drives the slider to slide up and down in the track of the crank-slider base, which simultaneously drives the crank-slider base to swing around the second circular axis and drives the pawl to rotate around the first circular axis. Then, it drives the ratchet to rotate through a certain angle. The rotation of the ratchet drives the fixed shaft of the root sweeping rake to rotate, which in turn drives the root sweeping rake to rotate, simultaneously sweeping the chopped residual roots in the ridge from the soil into the furrow.
2. The adjustable cutter posture low-disturbance soil ridge stubble treatment device according to claim 1, characterized in that: The automatic angle-adjustable stubble cutting mechanism includes a controller, a camera, a variable-angle L-shaped toothed stubble cutting blade, a telescopic shaft, and a spring. The entire mechanism is installed under the front end of the frame. The controller, camera, and second motor are connected by wires. The first motor, second motor, camera, and controller are all connected to a second power source via wires.
3. The adjustable cutter posture low-disturbance soil ridge stubble treatment device according to claim 1, characterized in that: The oscillating root-cutting mechanism includes a ratchet, a pawl, a root-cutting rake, a third motor, a connecting rod, a slider, and a root-cutting rake fixed shaft. The third motor is connected to the first power source via an electric wire.
Citation Information
Patent Citations
Device for cutting stubbles by coaxial forward and reverse rotation bionic knife and synchronously cutting roots by telescopic knife
CN118044363A
High-quality and high-efficiency crop multi-posture root stubble crushing device
CN118844192A