A tillage device with dual operating parameter dynamic adjustment capability

Abstract

The present application relates to the field of agricultural machinery technology, and specifically to a tillage device with dual operation parameter dynamic adjustment capability. The device comprises a frame, an integrated control module and multiple tillage units. Each tillage unit has a tillage disc assembly, a deflection angle adjustment mechanism and a stopper assembly. The tillage disc assembly is internally provided with a configuration switching mechanism, which can manually switch the gap configuration and full-rim configuration of the disc before operation. The deflection angle adjustment mechanism is electrically driven, and the steering shaft is rotated through a worm and gear reducer, so as to continuously adjust the disc deflection angle during travel. The integrated control module can cooperatively control the online adjustable disc deflection angle based on the preset disc configuration, so as to execute multiple optimized operation modes such as "powerful deep plowing" and "high-speed shallow mixing", realize one machine with multiple functions, real-time optimization and intelligent operation, and significantly improve the working condition adaptability, operation efficiency and tillage quality of the device.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a tillage device with dual dynamic adjustment capabilities for operating parameters. Background Technology

[0002] Soil tillage is a fundamental step in agricultural production, improving soil physical properties and creating favorable conditions for crop growth. Among various tillage machines, disc-type tillage machinery, represented by disc harrows and disc plows, is widely used for harrowing, soil breaking, stubble removal, and seedbed preparation due to its strong ability to cut, turn over, and mix soil, and its resistance to clogging when handling straw residues. The core working component of this type of machinery is one or more sets of tilted tillage discs. However, in long-term production practice, existing disc-type tillage machinery has revealed the following inherent and difficult-to-solve technical bottlenecks:

[0003] 1. Fixed disc configuration leads to limited functionality and poor adaptability: To achieve different tillage purposes, tillage discs are designed with different configurations. For example, when strong breaking of surface crust and chopping of straw are required, notched discs are typically used, whose discontinuous cutting edges generate impact and shearing forces. However, when fine soil breaking and leveling of the surface for seedbed preparation are needed, full-rim discs must be used, whose continuous cutting edges smoothly cut the soil. The limitation of existing technology is that a disc harrow is usually equipped with only one permanent disc configuration (i.e., notched disc or full-rim disc), resulting in fixed functionality. When farmers face complex terrain, the only option is to replace the entire disc set or use a different machine, which significantly increases operating costs, time, and labor intensity. There is currently no solution in the technology that allows switching configurations on a single disc.

[0004] 2. Difficulty in adjusting the disc assembly angle and the crude adjustment method make it difficult to balance work efficiency and quality: The disc assembly angle is a key parameter determining the working effect of the disc rake. In existing technologies, angle adjustment is all offline and manual. Whether adjusting the entire disc assembly or adjusting a single disc independently, the operator must stop the machine and use tools to change the positioning holes by inserting and removing positioning pins to switch angles. This method has the following fundamental drawbacks:

[0005] Non-dynamic: It cannot make dynamic adjustments based on real-time operating conditions (such as soil resistance and straw density) during the movement of the equipment, thus missing the possibility of real-time optimization.

[0006] Discreteness / Discontinuity: Limited by the finite number of positioning holes, only a limited, step-like angle selection is possible, and it is impossible to achieve the continuous, stepless angle setting required for precision operations.

[0007] Non-intelligent: The purely mechanical manual adjustment method makes it completely unable to link and control data with onboard intelligent units such as tractor steering, GPS information, and autonomous driving systems.

[0008] 3. Lack of synergistic optimization capability for the two major parameters of disc configuration and deflection angle: In existing technologies, the disc configuration is permanently fixed, while deflection angle adjustment is difficult, offline, and crude, making synergistic optimization between the two impossible. Operators cannot combine and dynamically switch these two key parameters according to different instantaneous operational goals such as "powerful chipping" and "fine leveling," resulting in an insurmountable ceiling on the equipment's application scenarios and operational efficiency. Summary of the Invention

[0009] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tillage device with dual dynamic adjustment capabilities for operating parameters.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A tillage device with dual dynamic adjustment capability of operating parameters, comprising:

[0012] One rack;

[0013] An integrated control module;

[0014] Multiple tillage units, wherein the tillage units are connected to the frame;

[0015] Each of the aforementioned cultivated units includes:

[0016] A tillage disc assembly having an internal configuration switching mechanism for manually switching the tillage disc assembly between a notched configuration and a full-rim configuration before operation;

[0017] An electrically driven deflection angle adjustment mechanism is configured to drive the steering shaft to rotate during the operation of the equipment to continuously adjust the disc deflection angle of the tillage disc assembly;

[0018] And an electronically controlled limiter assembly for applying active locking to the steering shaft after the disc deflection angle is adjusted to the correct position;

[0019] Furthermore, the integrated control module is configured to independently control the deflection angle adjustment mechanism of each tillage unit and the limiter assembly, and to coordinately adjust the deflection angle of the tillage disc assembly based on its configuration.

[0020] In one possible design, the deflection angle adjustment mechanism includes a worm gear reducer, which includes a housing, a worm gear shaft, a worm gear, and a worm assembly. The worm gear shaft is connected to the steering shaft, and the worm assembly includes a worm motor and a worm. The worm meshes with the worm gear, wherein the worm motor drives the worm to rotate, thereby driving the worm gear shaft and the steering shaft to rotate through the worm gear transmission.

[0021] In one possible design, the tillage disc assembly includes a hollow notched disc and the configuration switching mechanism. The configuration switching mechanism includes an adjustment disc and a plurality of disc push rods. The adjustment disc is provided with a spiral guide groove. One end of each disc push rod is provided with a patching fan, and the other end is provided with a guide pin that slides with the spiral guide groove. When the adjustment disc is rotated, the spiral guide groove drives the disc push rod to move radially so that the patching fan fills or exposes the notch in the hollow notched disc.

[0022] In one possible design, the limiter assembly includes a limiter base, an electric push rod, a slider, and a pair of second arms. The electric push rod is connected to the slider, which is provided with a V-shaped cam guide rail. Each second arm is pivotally mounted on the limiter base and is provided with a roller. The roller contacts the V-shaped cam guide rail. When the electric push rod drives the slider to move, the clamping surfaces of the second arms are closed or opened through the V-shaped cam guide rail and the roller to lock or unlock the steering shaft.

[0023] In one possible design, the integrated control module is configured to collaboratively adjust the disc deflection angle based on the configuration of the tillage disc assembly, so that the tillage equipment performs at least one of the following combined operating modes:

[0024] a. When the tillage disc assembly is set to a notched configuration and the disc deflection angle is adjusted to 40° to 60°, the equipment is in a powerful deep tillage and stubble-breaking mode;

[0025] b. When the tillage disc assembly is set to a notched configuration and the disc deflection angle is adjusted to 15° to 25°, the equipment is in high-speed stubble annihilation and shallow mixing mode;

[0026] c. When the tillage disc assembly is set to a full-edge configuration and the disc deflection angle is adjusted to 35° to 55°, the equipment is in fine tillage and mixing mode;

[0027] d. When the tillage disc assembly is set to a full-edge configuration and the disc deflection angle is adjusted to 5° to 15°, the equipment is in high-speed fine leveling mode;

[0028] e. When the integrated control module is configured to independently adjust the disc deflection angle of different tillage units when the equipment is turning, it can achieve differentiated tillage or turning compensation.

[0029] In one possible design, the worm motor is a servo motor or a stepper motor.

[0030] In one possible design, the spiral guide groove is in the shape of an Archimedean spiral.

[0031] In one possible design, the limiter assembly further includes a pair of first arms, each first arm having an arc-shaped guide groove, and each second arm having a guide pin, the guide pin slidingly engaging with the arc-shaped guide groove to constrain the swing trajectory of the second arm.

[0032] In one possible design, the steering shaft has an L-shaped structure, including a vertically arranged rotating section and a horizontally arranged mounting section. The rotating section is connected to the deflection angle adjustment mechanism, and the mounting section is connected to the tillage disc assembly. Beneficial effects

[0033] 1. Multi-functional, significantly improving equipment asset utilization. The tillage disc assembly allows operators to easily switch between "notched" and "full-edged" configurations before operation. This solves the problem of existing technologies where a single device has a fixed function, requiring the purchase of multiple specialized devices to adapt to different agronomic requirements. Users only need one device, which, through simple pre-operation settings, can handle a variety of tasks from heavy stubble breaking to fine leveling, greatly improving the asset utilization of a single device and reducing the total cost of equipment purchase, storage, and maintenance.

[0034] 2. Real-time optimization through online adjustment of the deflection angle breaks through the traditional bottlenecks of efficiency and quality. The most significant dynamic feature of this invention lies in its electronically controlled deflection angle adjustment mechanism. It gives the equipment the ability to adjust the disc deflection angle in real time and with precision during operation. This allows the operator to optimize operating parameters instantly from the cab based on real-time changes in soil resistance, moisture, or tractor load. For example, when encountering hard ground or areas with dense stubble, the deflection angle can be appropriately reduced to lower energy consumption and ensure passability; when a stronger soil-breaking effect is needed, the deflection angle can be increased. This online optimization capability is completely lacking in existing manually adjusted or fixed-angle equipment, breaking the long-standing "compromise" between operating efficiency and tillage quality.

[0035] 3. This invention achieves a parameter combination of "manual preset + dynamic fine-tuning," pioneering a new operational optimization mode. For the first time, this invention combines a manually preset configuration parameter (disc shape) with an online dynamically adjustable attitude parameter (angle) on the same platform. Operators can pre-set the disc configuration according to the main tasks of the work season (e.g., focusing on stubble breaking in autumn and land preparation in spring), and then use the online angle adjustment function to fine-tune the operational effect in real time during specific field operations. This combined control mode of "strategic setting + tactical adjustment" provides experienced operators with an unprecedented and powerful tool capable of deeply optimizing the tillage process.

[0036] 4. An active locking structure is provided to ensure the stable implementation of the dynamic adjustment function. The deflection angle adjustment mechanism of this invention achieves precise driving and deceleration torque increase through worm gear transmission. To ensure that the adjusted angle remains stable during operation, an independent electronically controlled limit switch assembly is configured, which can apply an active and rigid clamping force to the steering shaft after the deflection angle is adjusted to the correct position. This active locking mechanism can directly and effectively resist the huge and irregular impact force generated by the soil during tillage, ensuring that the set working deflection angle does not deviate under harsh working conditions. This stable and reliable locking structure is the necessary physical basis for realizing the online dynamic adjustment function and ensuring its stable reproduction in actual production. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention.

[0038] Figure 2 This is a schematic diagram of the working unit structure of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention;

[0039] Figure 3 This is a schematic diagram of the deflection angle adjustment mechanism of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention.

[0040] Figure 4 This is a schematic diagram of the worm gear structure in the deflection angle adjustment mechanism of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention.

[0041] Figure 5 This is a schematic diagram of the tillage disc assembly structure of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention;

[0042] Figure 6 This is a schematic diagram of the state switching structure of the tillage disc assembly of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention.

[0043] Figure 7 This is a schematic diagram of the limiter assembly structure of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention;

[0044] Figure 8 This is a schematic diagram of the state switching structure of the limiter assembly of a tillage device with dual dynamic adjustment capability of operating parameters proposed in this invention.

[0045] In the diagram: 1. Deflection angle adjustment mechanism; 2. Tillage disc assembly; 3. Frame; 4. Integrated control module; 5. Limit switch assembly; 6. Steering shaft; 101. Worm gear flange cover; 102. Housing; 103. Main bearing No. 1; 104. Flange retaining ring; 105. Worm gear shaft No. 1 flange; 106. Oil seal; 107. Worm gear shaft; 108. Worm gear cover; 109. Housing base; 110. Worm gear shaft No. 2 flange; 111. Secondary bearing No. 1; 112. Secondary bearing No. 2; 113. Main bearing No. 2; 114. Worm gear; 115, worm assembly; 115-1, worm; 115-2, worm bearing housing; 115-3, worm motor; 401, hollow notched disc; 402, circular push rod; 403, adjusting disc side cover; 404, adjusting disc base; 405, adjusting disc; 406, adjusting disc base plate; 501, second support arm; 502, limiter base; 503, slider; 504, electric push rod; 505, first support arm; 501-1, roller; 501-2, guide pin; 503-1, slider guide pin. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0047] Figure 1 A schematic diagram of the overall structure of the tillage equipment with configuration-attitude dual-parameter coordinated adjustment capability of the present invention is shown. The tillage equipment includes a frame 3, at least one tillage unit, and an integrated control module 4. Each tillage unit consists of a deflection angle adjustment mechanism 1 and a tillage disc assembly 2 (their combination relationship is detailed in [reference needed]). Figure 2 (Description). These tillage units are the core execution units for realizing soil tillage functions. Specifically, Figure 1The diagram shows a configuration with twelve tillage units installed side-by-side, but this is not a limitation. The number and arrangement of tillage units can be flexibly adjusted according to the actual tillage width, tractor power, and specific agronomic requirements. For example, single-row, double-row V-shaped, and double-row X-shaped layouts can be used. The frame 3 serves as the equipment's carrying platform, and its front end is usually equipped with a mounting device (not shown in the diagram) for connecting to tractor or other traction equipment, providing rigid support and a mounting benchmark for the entire equipment. The integrated control module 4 is preferably installed on the frame 3 in a location convenient for wiring and maintenance. Functionally, it is a highly integrated unit serving as the energy and control center of the entire machine. As the energy center, it is equipped with a power system, such as a large-capacity battery pack, an interface circuit for the tractor's power system, or a power conversion module. It is responsible for providing stable and sufficient operating power to all electrical components of the machine, including but not limited to the deflection angle adjustment mechanism 1 of each tillage unit, the tillage disc assembly 2, and all actuators, electric push rods, and sensors within the limiter assembly 5. As the control center, it integrates a central processing unit, memory, input / output interfaces, and communication units. It is responsible for performing the following core tasks: generating operation parameter adjustment instructions for one or more tillage units according to preset control logic or real-time algorithms; sending instruction signals to the actuators of the deflection angle adjustment mechanism 1 and the tillage disc assembly 2 in the target tillage unit to drive them to complete precise actions, etc.

[0048] Figure 2 Showing more details Figure 1 A schematic diagram of the structure of a single tillage unit. An independent tillage unit mainly consists of a deflection angle adjustment mechanism 1, a tillage disc assembly 2, a limiter assembly 5, and a steering shaft 6. These components work together to achieve dynamic and precise adjustment of the disc assembly's deflection angle. In this embodiment, the connection relationship and motion principle of each component are as follows: the deflection angle adjustment mechanism 1 and the tillage disc assembly 2 transmit motion through the steering shaft 6. Specifically, the steering shaft 6 is designed as an L-shaped integrated structure, comprising a vertically arranged rotating section and a horizontally arranged mounting section. The upper end of the rotating section of the steering shaft 6 is connected to the output end of the deflection angle adjustment mechanism 1 (e.g., worm gear shaft 107, see...). Figure 3 The rigid connection allows the power of the deflection angle adjustment mechanism 1 to directly drive the steering shaft 6 to rotate around its own central axis. The mounting section of the steering shaft 6 serves as the mounting interface for the tillage disc assembly 2, on which the tillage disc assembly 2 is fixed.

[0049] Based on this structure, when the integrated control module 4 issues a command to drive the deflection angle adjustment mechanism 1, the output torque of the deflection angle adjustment mechanism 1 will cause the rotating section of the steering shaft 6 to rotate. Due to the rigidity of the L-shaped structure, the rotation of the rotating section will synchronously drive the mounting section and the entire tillage disc assembly 2 fixed thereon to swing in the horizontal plane. This swing realizes the adjustment of the "disc deflection angle", which is defined as the angle between the rotation axis of the tillage disc assembly 2 and the forward direction of the equipment. In this embodiment, the adjustment range of the deflection angle can be designed to be from 0° to 90°, thereby covering all working conditions from high-speed shallow operations with almost no deflection to large-angle heavy tillage and soil breaking.

[0050] To reliably lock the angle after adjustment to the target angle and prevent unexpected deflection during tillage due to the large reaction force of the soil or ground vibration, each tillage unit in this embodiment also includes a limiter assembly 5. For example... Figure 2 As shown, the limit switch assembly 5 is installed near the housing of the yaw angle adjustment mechanism 1 and can effectively brake or lock the steering shaft 6. This limit switch assembly 5 also receives control signals from the integrated control module 4. Its standard operating procedure is as follows: when the integrated control module 4 confirms that the yaw angle adjustment mechanism 1 has adjusted the yaw angle to the target value, it immediately sends a locking command to the limit switch assembly 5. The limit switch assembly 5 then performs a clamping action via an electrical signal, firmly locking the steering shaft 6 or its synchronously rotating components in the current position, ensuring the stability of the working angle. When the angle needs to be adjusted again, the integrated control module 4 first instructs the limit switch assembly 5 to release the lock, and then drives the yaw angle adjustment mechanism 1 to operate.

[0051] Figure 3 and Figure 4The detailed structure of the deflection angle adjustment mechanism 1 in this invention is shown in the combined diagram. Structurally, the deflection angle adjustment mechanism 1 is a precision, electrically driven worm gear reducer. Its core function is to receive commands from the integrated control module 4 and generate a precisely controllable torque sufficient to drive the steering shaft 6 to rotate, thereby achieving dynamic adjustment of the deflection angle of the tillage disc assembly 2. Specifically, the deflection angle adjustment mechanism 1 includes a housing 102 serving as the main frame and a housing base 109 fixed to its bottom by bolts or other fasteners. The housing 102 and the housing base 109 together form a closed cavity for accommodating and supporting the internal transmission components and preventing the intrusion of external dust, moisture, and debris. The outer side of the housing base 109 is also provided with a connection interface for the limiter assembly 5. Inside the housing 102, a worm gear shaft 107, serving as the core of the power output, is vertically arranged. The lower end of the worm gear shaft 107 passes sequentially through the second main bearing 113, the second auxiliary bearing 112, and the first auxiliary bearing 111, all of which are mounted on the housing base 109. The main bearings are preferably thrust angular contact ball bearings or tapered roller bearings capable of simultaneously withstanding radial and axial forces, used to withstand the enormous impact loads transmitted from the soil to the steering shaft 6 during tillage; the auxiliary bearings provide auxiliary support and guidance. The lower end of the worm gear shaft 107 is rigidly connected to the upper end of the steering shaft 6 via the second flange 110, thereby transmitting rotational motion to the steering shaft 6. A worm wheel 114 is fixedly mounted in the middle of the worm gear shaft 107. The upper end of the worm gear shaft 107 passes sequentially through the first main bearing 103 and the oil seal 106, and is finally encapsulated by the first flange 105 and the worm wheel cover 108. The first main bearing 103 is mounted on the top of the housing 102, providing stable and reliable dual support for the worm gear shaft 107 together with the lower bearing assembly. Oil seal 106 is positioned between the bearing and the external environment to prevent lubricating oil leakage and the entry of external contaminants. Flange retaining ring 104 is used to firmly press and fix the upper components, such as the No. 1 main bearing 103, onto the housing 102.

[0052] Figure 4The structure of the power input unit worm gear assembly 115 is shown separately. The worm gear assembly 115 is mounted laterally on the side wall of the housing 102 and mainly consists of a worm motor 115-3, a worm bearing housing 115-2, and a worm 115-1. The worm motor 115-3, such as a servo motor or a stepper motor with an encoder, has its output shaft connected to the worm 115-1. The worm 115-1 is housed and precisely supported by a bearing within the worm bearing housing 115-2, and its threaded portion precisely meshes with the aforementioned worm wheel 114. The end of the worm 115-1 furthest from the motor extends into the housing 102, and its end is supported and sealed by a worm flange cover 101. The working principle of this deflection angle adjustment mechanism 1 is as follows: the integrated control module 4 sends an electrical signal containing the rotation direction and rotation angle to the worm motor 115-3. After receiving the signal, the worm motor 115-3 drives the worm 115-1 to rotate. Due to the meshing transmission relationship between the worm 115-1 and the worm wheel 114, the rotation of the worm drives the worm wheel 114 to reduce speed and increase torque at a large reduction ratio (e.g., 40:1 or higher). The rotation of the worm wheel 114 then drives the worm wheel shaft 107, which is fixed to it, to rotate synchronously. Finally, the worm wheel shaft 107 drives the steering shaft 6 to rotate through the worm wheel shaft flange 110 at its lower end, thereby achieving precise adjustment of the tilt angle of the tillage disc assembly 2. After the tilt angle is adjusted to the target position, the independent limiter assembly 5 is responsible for locking the steering shaft 6 to resist external impacts during operation.

[0053] Figure 5 and Figure 6The internal structure and state switching principle of the tillage disc assembly 2 in this invention are shown respectively. The tillage disc assembly 2 is the core component for realizing diversified tillage functions. Its key feature is that it can switch online and dynamically between two configurations, "notched disc" and "full-edged disc," according to operational needs. Specifically, the tillage disc assembly 2 includes a hollow notched disc 401 as a basic working component. The hollow notched disc 401 has a traditional concave working surface, and multiple preset notches are evenly distributed on its outer peripheral cutting edge. A configuration switching mechanism is installed on the concave side of the hollow notched disc 401. This configuration switching mechanism is mainly housed inside a shell composed of an adjusting disc base 404 and an adjusting disc bottom plate 406. The shell is fixed to the central area of ​​the hollow notched disc 401 by bolts or other means. Inside the shell, an adjusting disc 405 that can rotate relative to the shell is provided. The adjusting disc 405 has at least one spiral guide groove machined on its surface. Preferably, the number of guide grooves is the same as the number of notches on the hollow notched disc 401, and each guide groove is in the shape of an Archimedean spiral. Corresponding to each guide groove and each notch, a circular push rod 402 is provided. Each circular push rod 402 includes: a patching fan-shaped part at its outer end, whose shape and curvature match the notch contour; a guide pin at its inner end, capable of slidingly engaging with the spiral guide groove on the adjusting disc 405; and a rod connecting the two. The rod of the circular push rod 402 is constrained within a radial groove on the adjusting disc base 404, ensuring that it can only extend or retract radially.

[0054] Figure 6 The key point is to demonstrate the working principle of this configuration switching, set to the notched disk mode ( Figure 6 (As shown on the left): Before performing operations requiring strong soil breaking and slag removal, the operator directly uses a tool or their hand to rotate the adjusting disc 405 until the disc pusher 402 is fully retracted. In this position, the guide portion of the disc pusher 402 is located at the innermost circle of the spiral guide groove, and its front end's patching fan is retracted into the mechanism, exposing the entire notch of the hollow notched disc 401. After releasing the hand, the mechanism automatically maintains this state due to its internal friction. (Set to full-edge disc mode) Figure 6 (As shown on the right): When switching to fine soil crushing operations, the operator rotates the adjusting disc 405 in the opposite direction. During rotation, the wall of the spiral guide groove pushes the circular push rod 402 radially outward, and the filling fan at its front end moves in and tightly fills the gap on the hollow notched disc 401. Once all gaps are completely filled, the operator stops rotating. The adjusting disc 405 will then remain stably in its current position, making the disc fully rimmed.

[0055] Figure 7 and Figure 8The structure of the limiter assembly 5 and its switching between unlocked and locked states are shown. The limiter assembly 5 constitutes a mechanical locking device controlled by an electrical signal. Its core function is to apply a strong clamping force to the steering shaft 6 after the deflection angle adjustment is completed, so as to ensure that the working angle of the tillage disc assembly 2 remains stable under the huge soil reaction force. Specifically, the limiter assembly 5 includes a limiter base 502 as an installation reference. A pair of symmetrically arranged first arms 505 are fixedly mounted on the limiter base 502. Each first arm 505 is machined with a precise arc-shaped guide groove. A pair of symmetrical second arms 501 are also pivotally mounted on the limiter base 502. "Pivotally mounted" here means that each second arm 501 can swing about a fixed pivot point on the limiter base 502. Each second arm 501 has a roller 501-1 and a guide pin 501-2 on its arm body. The guide pin slides into the arc-shaped guide groove on the first arm 505 on the corresponding side, precisely constraining the swing trajectory of the second arm 501. The front end of the second arm 501 is designed as an arc-shaped clamping surface with a specific curvature. A guide groove for guiding the movement of the slider is also provided on the limiter base 502, and a slider 503 is installed in the guide groove, so that it can only reciprocate in a straight line. The front end of the slider 503 is also provided with an arc-shaped storage groove that matches the curvature of the clamping surface of the second arm 501. A slider guide pin 503-1 is provided on the upper side of the slider 503. The guide pin 503-1 is movably inserted into the connecting hole on the second arm 501. On both sides of the slider 503, two symmetrical cam guides that diverge in a "V" shape (or figure-eight shape) are machined. The roller 501-1 installed on the second arm 501 contacts these cam guides.

[0056] The power source for this assembly is a linear actuator, namely an electric push rod 504, one end of which is fixed to the limiter base 502, and the other end of its telescopic rod is fixed to the slider 503. The electric push rod 504 receives control signals from the integrated control module 4 and drives the slider 503 forward or backward along the guide groove by extending or retracting its push rod. (Unlocked state, such as...) Figure 8 (As shown on the left): When the deflection angle needs adjustment, the integrated control module 4 instructs the electric push rod 504 to retract. The electric push rod 504 drives the slider 503 to move backward. During this process, the wide end of the V-shaped cam guide rail on the slider 503 acts on the roller 501-1, or guides the roller 501-1 to move outward through the side wall of the guide rail. This causes the two second arms 501 to swing outward around their respective pivot points, and the arc-shaped clamping surfaces at their front ends separate from each other, thereby releasing the clamping of the steering shaft 6. At this time, the steering shaft 6 can rotate freely. Locked state (e.g.) Figure 8(As shown on the right): Once the deflection angle is adjusted to the correct position, the integrated control module 4 commands the electric push rod 504 to extend. The electric push rod 504 pushes the slider 503 forward. As the slider 503 moves forward, the narrow end of its V-shaped cam guide gradually squeezes the two rollers 501-1, forcing them closer to each other. This force is converted into a clamping action by the lever structure of the second arm 501, causing its front arc-shaped clamping surface to swing inward. Finally, the clamping surfaces of the two second arms 501 and the arc-shaped receiving groove at the front end of the slider 503 close together, forming a complete circular clamping hole that firmly holds and locks the cylindrical surface of the steering shaft 6. Throughout the movement, the arc-shaped groove on the first arm 505 always constrains the movement trajectory of the second arm 501, ensuring that the final clamping hole has precise roundness, thus achieving stable and reliable locking.

[0057] This invention combines "manual configuration setting before operation" with "online adjustment of the deflection angle during operation," enabling a single device to achieve the functionalities previously required by multiple dedicated devices. The following examples of four typical operating modes illustrate how this invention overcomes the limitations of existing technologies:

[0058] Mode 1: Powerful Deep Tillage and Stubble Breaking Mode. Before operation, the disc is manually set to the "notched disc" configuration. During operation, the deflection angle is adjusted online to a larger value (e.g., 40°-60°) via the control module. In this mode, the impact shearing action of the notched disc combined with the powerful turning ability of the large deflection angle effectively handles compacted soil and large amounts of straw. In existing technologies, although dedicated heavy-duty notched disc harrows can achieve similar effects, their fixed or adjustable deflection angles are cumbersome. They cannot reduce the deflection angle in real time according to changes in tractor load or soil quality to reduce energy consumption, nor can they switch to other operating modes, resulting in limited functionality. This invention achieves the same stubble breaking effect while retaining the flexibility of online optimization.

[0059] Mode 2: High-speed stubble removal and shallow mixing mode. Also in the "notched disc" configuration, the operator can adjust the deflection angle online from the cab to a smaller value (e.g., 15°-25°). This mode ensures effective cutting of surface stubble while significantly reducing operating resistance due to the reduced deflection angle, allowing the equipment to travel at higher speeds and significantly improving operational efficiency. Existing technology cannot achieve this mode switching during operation. A heavy-duty disc harrow cannot quickly switch to a light-duty high-speed stubble remover during operation. This invention, through online adjustment of the deflection angle, allows the same equipment preset in the "notched" configuration to perform both "deep tillage" and "shallow mixing," a dynamic range of operational capability and efficiency unmatched by existing technologies.

[0060] Mode 3: Fine Soil Turning and Mixing Mode. After manually setting the disc to the "full-edge disc" configuration before operation, the equipment will enter this mode if a large deflection angle (e.g., 35°-55°) is set online during operation. This mode utilizes the smooth soil-cutting ability and powerful turning capacity of the full-edge disc, suitable for further breaking up soil clods and uniformly mixing fertilizers during secondary tillage. In existing technologies, the deflection angle of the full-edge disc harrow is fixed, and its mixing intensity and soil-breaking effect are determined at the factory. This invention allows users to significantly adjust the deflection angle online even in the full-edge disc configuration, thereby adjusting the operating intensity in real time according to soil moisture and mixing needs—a level of fine control that traditional full-edge disc harrows cannot achieve.

[0061] Mode 4: High-Speed ​​Fine Leveling Mode. Based on the "full-edged disc" configuration, the invention allows the operator to adjust the deflection angle online to a minimum value (e.g., 5°-15°) via the control module, switching the equipment to this mode. In this mode, the equipment operates at high speed with an extremely small entry angle, achieving topsoil leveling, fine crushing, and light compaction—the final step in preparing an ideal seedbed. Existing technologies typically require dedicated land preparation machines or graders to achieve this function. Traditional disc harrows, even with full-edged discs, cannot achieve such a small entry angle and leveling effect with their fixed deflection angle. This invention, by adjusting the deflection angle online to a minimum value, endows the disc harrow with unprecedented fine leveling capabilities, realizing a transformation from a tillage tool to a seedbed preparation tool, allowing the functionality of a single device to cover tasks traditionally belonging to different categories of agricultural implements.

[0062] Mode 5: Differentiated Tillage and Steering Compensation Mode. This mode fully utilizes the unique ability of this invention to adjust the tilt angle of each individual tillage unit online, dynamically, and independently—something that existing technologies relying on manual or offline adjustments simply cannot achieve. The operator can preset the tilt angle, or the integrated control module 4 can automatically execute it based on sensor data.

[0063] Steering compensation application: When the tractor turns, the integrated control module 4 acquires steering information in real time and dynamically and differentially adjusts the deflection angles of the inner and outer discs within milliseconds. For example, it reduces the deflection angle of the outer disc within the working radius while increasing the deflection angle of the inner disc. This compensates for the difference in linear velocity caused by the differential speed of the inner and outer wheels, ensuring that the soil breaking rate and overturning effect remain highly consistent throughout the entire working width during the turning process.

[0064] Differentiated tillage applications: Operators can preset different combinations of tillage angles according to specific agronomic needs. For example, the tillage angles of the middle tillage units can be set to larger values, while the tillage angles on both sides can be set to smaller values, thus creating a "W"-shaped tillage profile with a deeper center and shallower edges in a single operation, creating conditions for special planting patterns. This ability to achieve customized tillage within the operating width greatly expands the agronomic adaptability of the equipment.

[0065] However, as is well known to those skilled in the art, the working principles and wiring methods of the worm motor 115-3 and the electric actuator 504 are conventional methods or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0066] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tillage device with dual dynamic adjustment capability for operating parameters, characterized in that, include: One rack (3); An integrated control module (4); Multiple tillage units, wherein the tillage units are connected to the frame (3); Each of the aforementioned cultivated units includes: A tillage disc assembly (2) has a configuration switching mechanism inside, which is used to manually switch the tillage disc assembly (2) between a notched configuration and a full-edge configuration before operation; An electrically driven deflection angle adjustment mechanism (1) is configured to drive the steering shaft (6) to rotate during the operation of the equipment to continuously adjust the disc deflection angle of the tillage disc assembly (2); And an electronically controlled limiter assembly (5) for applying active locking to the steering shaft (6) after the disc deflection angle is adjusted to the position; Furthermore, the integrated control module (4) is configured to independently control the deflection angle adjustment mechanism (1) of each tillage unit and the limiter assembly (5), and to coordinately adjust the deflection angle of the tillage disc assembly (2) based on the configuration of the tillage disc assembly (2); The tillage disc assembly (2) includes a hollow notched disc (401) and the configuration switching mechanism. The configuration switching mechanism includes an adjustment disc (405) and a plurality of disc push rods (402). The adjustment disc (405) is provided with a spiral guide groove. Each disc push rod (402) has a patching fan at one end and a guide pin at the other end that slides with the spiral guide groove. When the adjustment disc (405) is rotated, the spiral guide groove drives the disc push rod (402) to move radially so that the patching fan fills or exposes the notch of the hollow notched disc (401).

2. The tillage equipment with dual dynamic adjustment capability of operating parameters according to claim 1, characterized in that, The deflection angle adjustment mechanism (1) includes a worm gear reducer, which includes a housing (102), a worm shaft (107), a worm wheel (114), and a worm assembly (115). The worm shaft (107) is connected to the steering shaft (6). The worm assembly (115) includes a worm motor (115-3) and a worm (115-1). The worm (115-1) meshes with the worm wheel (114). The worm motor (115-3) drives the worm (115-1) to rotate, thereby driving the worm shaft (107) and the steering shaft (6) to rotate through the worm gear transmission.

3. A tillage device with dual dynamic adjustment capability of operating parameters according to claim 1, characterized in that, The limiter assembly (5) includes a limiter base (502), an electric push rod (504), a slider (503), and a pair of second arms (501). The electric push rod (504) is connected to the slider (503). The slider (503) is provided with a V-shaped cam guide rail. Each second arm (501) is pivotally mounted on the limiter base (502) and is provided with a roller (501-1). The roller (501-1) contacts the V-shaped cam guide rail. When the electric push rod (504) drives the slider (503) to move, the clamping surface of the second arm (501) is closed or opened through the V-shaped cam guide rail and the roller (501-1) to lock or unlock the steering shaft (6).

4. A tillage device with dual dynamic adjustment capability of operating parameters according to claim 1, characterized in that, The integrated control module (4) is configured to coordinately adjust the disc deflection angle based on the configuration of the tillage disc assembly (2) so that the tillage equipment performs at least one of the following combined operation modes: a. When the tillage disc assembly (2) is set to a notch configuration and the disc deflection angle is adjusted to 40° to 60°, the equipment is in a powerful deep tillage and stubble-breaking mode; b. When the tillage disc assembly (2) is set to a notch configuration and the disc deflection angle is adjusted to 15° to 25°, the equipment is in high-speed stubble smear shallow mixing mode; c. When the tillage disc assembly (2) is set to full-edge configuration and the disc deflection angle is adjusted to 35° to 55°, the equipment is in fine tillage mixing mode; d. When the tillage disc assembly (2) is set to a full-edge configuration and the disc deflection angle is adjusted to 5° to 15°, the equipment is in high-speed fine leveling mode; e. When the integrated control module (4) is configured to independently adjust the disc deflection angle of different tillage units when the equipment is turning, in order to achieve differentiated tillage or turning compensation.

5. A tillage device with dual dynamic adjustment capability of operating parameters according to claim 2, characterized in that, The worm motor (115-3) is a servo motor or a stepper motor.

6. A tillage device with dual dynamic adjustment capability of operating parameters according to claim 1, characterized in that, The spiral guide groove is in the shape of an Archimedean spiral.

7. A tillage device with dual dynamic adjustment capability of operating parameters according to claim 3, characterized in that, The limiter assembly (5) further includes a pair of first arms (505), each of the first arms (505) is provided with an arc-shaped guide groove, and each of the second arms (501) is provided with a guide pin (501-2). The guide pin (501-2) slides in cooperation with the arc-shaped guide groove to constrain the swing trajectory of the second arm (501).

8. A tillage device with dual dynamic adjustment capability of operating parameters according to claim 1, characterized in that, The steering shaft (6) has an L-shaped structure, including a vertically arranged rotating section and a horizontally arranged mounting section. The rotating section is connected to the deflection angle adjustment mechanism (1), and the mounting section is connected to the tillage disc assembly (2).

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