Semi-suspension turnover plow capable of moving operation position

Abstract

The invention discloses a semi-suspension turnover plow capable of moving an operation position. The semi-suspension turnover plow comprises a turnover mechanism, a universal joint, a first connecting rod, a second connecting rod, a swing adjusting oil cylinder, an angle adjusting oil cylinder, a first lead screw, a telescopic rod, a supporting wheel assembly, a girder with an extension beam and a plow body assembly. The parallel four-bar linkage is matched with the swing adjusting oil cylinder to adjust the operation breadth, the angle adjusting oil cylinder and the first lead screw cooperate to adjust the inclination angle of the girder, the universal joint and the telescopic rod are matched with the operation position, the supporting wheel assembly controls the tilling depth and stabilizes the whole machine, and the extension beam expands the installation position of the plough body. Through cooperative control of the swing adjusting oil cylinder and the angle adjusting oil cylinder, independent / linkage adjustment of the swing amplitude and angle of the girder is achieved, meanwhile, the moving convenience of the operation position is improved, and therefore the multi-degree-of-freedom robot is suitable for complex terrains and diversified tillage requirements, and the tillage quality and the operation efficiency are improved.

Description

Technical Field

[0001] This invention belongs to the field of reversible plow technology, specifically relating to a semi-suspended reversible plow with a movable working position. Background Technology

[0002] In agricultural production, the reversible plow is the core equipment for tilling and breaking up soil. Semi-suspended reversible plows, due to their compact structure and strong power adaptability, are widely used in large-scale field cultivation. However, existing semi-suspended reversible plows have the following key drawbacks during operation:

[0003] 1. Insufficient adjustment flexibility: The swing amplitude and angle adjustment of the main beam of traditional semi-suspended reversible plows mostly rely on a single hydraulic cylinder or mechanical linkage mechanism, which cannot achieve precise control of "amplitude and angle" independently or in coordination. When faced with complex terrain (such as slopes and plots with elevation differences) or diverse farming needs (such as different tillage depth and width requirements for different crops), the adjustment range is limited and the response is lagging, resulting in uneven plow body penetration depth and poor plow width consistency.

[0004] 2. The working position cannot be adjusted: The working position of the existing equipment cannot be moved, which makes it difficult to match the tractor and the reversible plow. It is impossible to achieve precise wheel track position for operation, and it is impossible to quickly adapt to the boundary and ridge shape changes of different plots, which increases the time cost of cultivation and reduces the efficiency of operation.

[0005] 3. Limited tillage quality and efficiency: Due to low adjustment precision and weak adaptability, it not only leads to poor soil tillage effect (such as missed tillage and repeated tillage), but also increases equipment energy consumption and mechanical wear, and increases maintenance costs, making it difficult to meet the "efficient and precise" tillage requirements of modern agriculture.

[0006] 4. Different types of tractor tires are compatible: Due to the influence of different soil types and field management, tractors have different structures such as wheeled, tracked, single-tire, dual-tire, wide tire, and narrow tire.

[0007] In summary, existing semi-suspended reversible plows have significant shortcomings in terms of beam adjustment flexibility, adaptability to working positions, and tillage precision. To address these issues, there is an urgent need to develop a structurally optimized semi-suspended reversible plow. Summary of the Invention

[0008] To address the aforementioned issues, this invention proposes a semi-suspended reversible plow with a movable working position. Through the coordinated control of the swing adjustment cylinder and the angle adjustment cylinder, the independent / linked adjustment of the swing amplitude and angle of the main beam is achieved, while improving the mobility of the working position. This allows it to adapt to complex terrain and diverse farming needs, ultimately improving farming quality and work efficiency.

[0009] The technical solution adopted in this invention is as follows: a semi-suspended reversible plow with a movable working position, including a reversing mechanism, a universal joint, a first connecting rod, a second connecting rod, a telescopic rod, an angle adjusting cylinder, a first lead screw, a support wheel assembly, a swing adjusting cylinder, a main beam, and a plow body assembly;

[0010] The flipping mechanism is capable of rotating along the flipping axis;

[0011] The upper end of the universal joint is rotatably connected to the flipping shaft of the flipping mechanism, and its lower end is hinged to one end of the telescopic rod.

[0012] The upper ends of the first link and the upper ends of the second link are both hinged to the flipping mechanism, and the lower ends of both are respectively hinged to the link seat, forming a parallel four-bar hinge structure.

[0013] The connecting rod seat rotates around the main beam about the hinge point between the second connecting rod and the connecting rod seat as the axis;

[0014] The cylinder end of the swing adjustment cylinder is hinged to the flipping mechanism, and the piston rod end is hinged to the second connecting rod, driving the main beam to swing laterally around the hinge point of the first and second connecting rods to adjust the working position of the plow body;

[0015] The cylinder end of the angle adjusting cylinder is hinged to the connecting rod seat, and the piston rod end is connected to the main beam through a connecting block. One end of the first lead screw is also connected to the connecting block, and the other end of the first lead screw is connected to the middle of the main beam for cooperating with the angle adjusting cylinder to adjust the tilt angle of the main beam.

[0016] The support wheel assembly is connected to the other end of the telescopic rod and the main beam respectively, and is used to cooperate with the tractor suspension force to accurately control the tillage depth and assist the overall machine operation stability;

[0017] The plow assembly is mounted on the main beam and completes soil tillage operations synchronously with the swing and angle adjustment of the main beam.

[0018] Furthermore, the universal joint includes a rotating rod, a first swing rod, and a second swing rod; one end of the rotating rod is hinged to the flipping shaft of the flipping mechanism, and the rotating rod, the first swing rod, and the second swing rod are connected in sequence, with the hinge direction between the rotating rod and the first swing rod being perpendicular to the hinge direction between the first swing rod and the second swing rod.

[0019] Furthermore, the telescopic rod includes an outer rod, an inner rod, and a locking device. The outer rod is nested outside the inner rod, and the locking device is connected between the outer rod and the inner rod. The outer rod is provided with a limiting hole for telescopic limitation by bolts and corresponding elongated holes on the inner rod.

[0020] Furthermore, the main beam is also fixedly connected to an extension beam, which is located at the front end and / or rear end of the main beam; the plow body assembly is evenly distributed on the main beam and the extension beam, thereby increasing the tillage width by expanding the plow body mounting position.

[0021] Furthermore, the support wheel assembly includes a first support wheel frame, a second support wheel frame, a support wheel, a lifting cylinder frame, a lifting cylinder, and an auxiliary tilting frame; the front end of the first support wheel frame is hinged to the telescopic rod, allowing the first support wheel frame to swing left and right relative to the telescopic rod; the second support wheel frame is hinged to the end of the first support wheel frame, allowing the second support wheel frame to rotate in a vertical plane relative to the first support wheel frame; the support wheel is located below the second support wheel frame, and the lifting cylinder frame is located above the first support wheel frame, connecting the lifting cylinder frame and the second support wheel frame via the lifting cylinder; one end of the auxiliary tilting frame is axially connected to the lifting cylinder frame, and the other end is fixedly connected to the main beam, assisting the main beam in tilting.

[0022] Furthermore, the connecting rod seat and the main beam have corresponding positioning holes, which can lock the relative positions of the connecting rod seat and the main beam by means of pins.

[0023] Furthermore, the connecting block is triangular, with its three corners hinged to the main beam, the angle adjusting cylinder, and the first lead screw, respectively.

[0024] Furthermore, the main beam is provided with a protrusion, one end of the second lead screw is hinged to the protrusion, and the other end is hinged to the auxiliary tilting frame.

[0025] The beneficial effects of this invention are: it effectively solves the significant shortcomings of existing semi-suspended reversible plows in terms of beam adjustment flexibility, working position adaptability, and tillage precision, specifically:

[0026] 1. Through the combined design of "parallel four-bar hinge structure and swing adjustment cylinder", the main beam can be driven to swing laterally around the hinge point, realizing precise adjustment of the working width coverage range; at the same time, the angle adjustment cylinder works in coordination with the main beam and the first lead screw through the triangular connecting block. The first lead screw assists the cylinder to exert stable force, which can finely adjust the tilt angle of the main beam. The two adjustments can be operated independently or controlled in conjunction, with rapid response and wide adjustment range, effectively adapting to different tractor wheel tracks, and completely solving the problems of insufficient adjustment flexibility and poor width consistency of traditional equipment.

[0027] 2. Flexible movement of the working position through multi-component collaboration: The universal joint consists of a rotating rod, a first swing rod, and a second swing rod, with the two sets of hinges perpendicular to each other, enabling flexible rotation in multiple directions to accommodate positional shifts during tractor traction; the telescopic rod, through the nested cooperation of the outer and inner rods, combined with the bolt limiting and locking device of the limiting hole and elongated hole, can precisely control the telescopic length, and work with the universal joint to complete the forward and backward and left and right fine adjustments of the working position; in the support wheel assembly, the first support wheel frame can swing left and right relative to the telescopic rod, and the second support wheel frame can rotate in the vertical plane relative to the first support wheel frame; the lifting cylinder can adjust the height of the support wheels, and the auxiliary tilting frame can assist in the tilting of the main beam. The multi-degree-of-freedom adjustment allows the equipment to quickly adapt to the plot boundary without complex manual operation, greatly shortening the working position adjustment time and improving the convenience of operation.

[0028] 3. Through the coordinated control of the above components, it can be adapted to tractors with different structures such as wheeled, tracked, single-tire, dual-tire, wide tire, and narrow tire.

[0029] 4. The extension beam, fixedly connected to the main beam, expands the plow body mounting position. The plow body assembly is evenly distributed on the main beam and extension beam, effectively increasing the width of single tillage, improving work efficiency, and indirectly expanding the tractor's power range. The support wheel assembly, in conjunction with the tractor's suspension, can precisely control the tillage depth, avoiding missed tillage and overlapping tillage, ensuring uniform soil tillage, and improving tillage quality. At the same time, the precise adjustment capability reduces the additional resistance caused by the equipment forcibly adapting to the terrain, reducing tractor energy consumption and wear and tear on mechanical parts, extending the equipment's service life, and reducing maintenance costs. Attached Figure Description

[0030] Figure 1 This is a top view of the structure of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 3 This is a schematic diagram of the universal joint structure in this invention;

[0033] Figure 4 This is a schematic diagram of the telescopic rod in this invention;

[0034] Figure 5 This is a schematic diagram of the support wheel assembly in this invention;

[0035] Figure 6 This is a planar sectional view of the main beam in another embodiment of the present invention;

[0036] In the diagram: 1-Tilting mechanism, 2-Universal joint, 201-Rotating rod, 202-First swing rod, 203-Second swing rod, 3-First connecting rod, 4-Second connecting rod, 5-Telescopic rod, 501-Outer rod, 502-Inner rod, 503-Locking device, 504-Limiting hole, 505-Elongated hole, 6-Angle adjustment cylinder, 7-First lead screw, 8-Support wheel assembly, 801-First support wheel frame, 802-Second support wheel frame, 803-Support wheel, 804-Lifting cylinder frame, 805-Lifting cylinder, 806-Auxiliary tilting frame, 9-Swing adjustment cylinder, 10-Main beam, 11-Plow body assembly, 12-Extension beam, 13-Connecting block, 14-Connecting rod seat, 15-Second lead screw, 16-Positioning hole, 17-Protrusion. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment aims to fully demonstrate the synergy between the present invention in terms of structural optimization and functional advantages by clarifying the connection relationship and working logic of each component, and is not intended to limit the scope of protection of the present invention.

[0038] like Figure 1 and Figure 2 As shown, this invention is a semi-suspended reversible plow with a movable working position, including a reversing mechanism 1, a universal joint 2, a first connecting rod 3, a second connecting rod 4, a telescopic rod 5, an angle adjusting cylinder 6, a first lead screw 7, a support wheel assembly 8, a swing adjusting cylinder 9, a main beam 10, and a plow body assembly 11. The reversing mechanism 1, as the core connecting component between the equipment and the tractor suspension system, can flexibly rotate along its own reversing axis driven by the reversing cylinder, providing basic power for the reversing and reversing of the main beam 10. The upper ends of the first connecting rod 3 and the second connecting rod 4 are both hinged to the lower part of the reversing mechanism 1, and their lower ends are respectively hinged to the connecting rod seat 14, forming a parallel four-bar hinge structure. The connecting rod seat 14 is located inside the main beam 10 and rotates around the main beam 10 about the hinge point between the second connecting rod 4 and the connecting rod seat 14. Positioning holes 16 are provided at corresponding positions on the main beam 10 and the connecting rod seat 14, allowing the relative positions of the main beam 10 and the connecting rod seat 14 to be locked by pins. This structure ensures that the main beam 10 maintains a stable trajectory during subsequent lateral swinging or tilting adjustments, preventing the plow assembly 11 from shifting into the soil due to the swaying of the main beam, thus guaranteeing tillage stability from the basic structural perspective.

[0039] The cylinder end of the swing adjustment cylinder 9 is hinged to the side of the overturning mechanism 1, and the piston rod end is hinged to the middle of the second connecting rod 4. When it is necessary to adjust the working position of the plow body, the piston rod of the swing adjustment cylinder 9 extends or retracts, which can directly drive the second connecting rod 4 to rotate around its hinge point with the overturning mechanism 1, thereby causing the main beam 10 to swing laterally along the hinge trajectory of the parallel four-bar linkage. Compared with the fixed width design of traditional equipment that relies on a single mechanical link, this structure can achieve precise and continuous adjustment of the working position. For example, when it is necessary to adapt to different tractor wheel tracks in field cultivation, there is no need to disassemble or replace parts. The precise fine adjustment of the working position can be completed by controlling the swing adjustment cylinder 9 alone.

[0040] The cylinder end of the angle adjusting cylinder 6 is hinged to the connecting rod seat 14 at the end of the first connecting rod 3. The piston rod end is connected to one corner of the triangular connecting block 13. The other two corners of the connecting block 13 are respectively hinged to the side of the main beam 10 and one end of the first lead screw 7. The other end of the first lead screw 7 is fixedly connected to the end of the main beam 10. When the eccentricity of the main beam needs to be adjusted during the flipping process, the piston rod of the angle adjusting cylinder 6 can extend and retract to push the connecting block 13 to move, thereby causing the main beam 10 to tilt. At the same time, the first lead screw 7 can assist the angle adjusting cylinder 6 in finely adjusting the angle of the main beam 10 through its own thread structure. This achieves fine-tuning and stable control of the tilt angle of the main beam, solving the problems of narrow angle adjustment range and easy shaking in traditional equipment, and improving the quality of soil tillage.

[0041] like Figure 3 As shown, the universal joint 2 includes a rotating rod 201, a first swing rod 202, and a second swing rod 203. One end of the rotating rod 201 is hinged to the tilting shaft of the tilting mechanism 1. The rotating rod 201 is hinged to the first swing rod 202, and the first swing rod 202 is hinged to the second swing rod 203, with the two sets of hinges perpendicular to each other. This structure allows for flexible rotation in multiple directions, including up and down, left and right. When the tractor-traction equipment experiences slight positional deviation during operation, or when the swing amplitude of the beam 10 is adjusted by the swing adjustment cylinder 9, the universal joint 2 can adaptively adjust through multi-directional rotation, preventing operational position deviations caused by traction offset.

[0042] like Figure 4As shown, the telescopic rod 5 includes an outer rod 501, an inner rod 502, and a locking device 503. The outer rod 501 is nested outside the inner rod 502. The outer rod 501 has a limiting hole 504, and the inner rod 502 has an elongated hole 505. The telescopic length can be adjusted by passing a bolt through the limiting hole 504 and the elongated hole 505. The locking device 503 is connected between the outer rod 501 and the inner rod 502 to fix the telescopic length. One end of the telescopic rod 5 is hinged to the second swing rod 203 of the universal joint 2, and the other end is connected to the support wheel assembly 8. This structure can precisely control the telescopic length of the telescopic rod 5. Combined with the multi-directional rotation of the universal joint 2, when adjusting the swing amplitude of the main beam 10, the swing of the main beam can be adapted by simply adjusting the length of the telescopic rod. By locking the locking device 503, the swing of the main beam can be prevented.

[0043] like Figure 5 As shown, the support wheel assembly 8 is a core component ensuring the accuracy of tillage depth and the stability of the entire machine. Specifically, it includes a first support wheel frame 801, a second support wheel frame 802, support wheels 803, a lifting cylinder frame 804, a lifting cylinder 805, and an auxiliary tilting frame 806. The front end of the first support wheel frame 801 is hinged to the telescopic rod 5, allowing it to swing left and right relative to the telescopic rod 5. The second support wheel frame 802 is hinged to the end of the first support wheel frame 801, allowing it to rotate in the vertical plane relative to the first support wheel frame 801. This structure can adaptively adapt to uneven terrain, preventing the support wheels 803 from being suspended or excessively compressed due to differences in ground elevation, ensuring the entire machine maintains a stable posture at all times.

[0044] The lifting cylinder frame 804 is fixed above the first support wheel frame 801. The cylinder end of the lifting cylinder 805 is hinged to the lifting cylinder frame 804, and the piston rod end is hinged to the second support wheel frame 802. By extending and retracting the piston rod of the lifting cylinder 805, the second support wheel frame 802 can be driven to rotate around the hinge point, thereby adjusting the height of the support wheel 803. In conjunction with the tractor's suspension force, this structure can precisely control the soil penetration depth of the plow assembly 11. For example, when planting corn requires a deeper tillage depth and planting wheat requires a shallower tillage depth, the adjustment can be quickly made simply by lifting the cylinder, without the need for manual replacement of the plowshare or shims.

[0045] One end of the auxiliary tilting frame 806 is axially connected to the lifting cylinder frame 804, and the other end is fixedly connected to the lower part of the main beam 10. This structure helps the main beam 10 maintain a horizontal posture, preventing the main beam from bending due to excessive force on one side; on the other hand, when the tilting mechanism 1 drives the main beam 10 to tilt, the auxiliary tilting frame 806 can provide stable support, reduce the impact during the tilting process, improve the safety and stability of the whole machine when tilting, and avoid the risk of equipment tipping over.

[0046] The front and / or rear ends of the main beam 10 are fixedly connected to extension beams 12, and the plow body assembly 11 is evenly installed on the pre-set mounting holes of the main beam 10 and extension beams 12 by bolts. The advantage of this structure is that by expanding the plow body mounting position, the single tillage width is directly increased. Under the condition that the tractor travel speed remains unchanged, the single tillage area is increased by 30%-50%, which significantly improves the operating efficiency and meets the needs of large-scale field tillage.

[0047] The working process of this invention is as follows: During actual tillage, the tractor is connected to the tilting mechanism 1 through the suspension system to drive the equipment to move; according to the tillage requirements, the lateral swing amplitude of the main beam 10 is adjusted by the swing adjustment cylinder 9 to determine the working position; the tilt angle of the main beam 10 is adjusted by the angle adjustment cylinder 6 and the first lead screw 7 in coordination to adapt to different tractor wheel tracks, and then the angle of the main beam is locked by the pin; the height of the support wheel 803 is adjusted by the lifting cylinder 805 to determine the tillage depth in conjunction with the tractor suspension force; during travel, the universal joint 2 and the telescopic rod 5 adaptively adjust the working position to avoid traction deviation; the multi-degree-of-freedom structure of the support wheel assembly 8 and the auxiliary tilting frame 806 ensure the stability of the whole machine, and the plow body assembly 11 completes the soil tillage operation synchronously with the movement of the main beam 10.

[0048] like Figure 6 The following is another embodiment of the present invention. In this embodiment, a protrusion 17 is provided on the main beam 10. The protrusion 17 is located on the main beam 10 in the middle of the first lead screw 7. One end of the second lead screw 15 is hinged to the protrusion 17 located on the outside of the first lead screw 7. The other end of the second lead screw 15 is hinged to the auxiliary tilting frame 806 for assisting in adjusting the angle of the main beam 10.

[0049] In summary, this invention achieves independent / linked adjustment of the swing amplitude and angle of the main beam through the coordinated control of the swing adjustment cylinder and the angle adjustment cylinder, while improving the ease of movement of the working position, thereby adapting to the diversification of tractor tire types and ultimately improving the quality of tillage and work efficiency.

Claims

1. A semi-suspended reversible plow with a movable working position, characterized in that, It includes a tilting mechanism (1), a universal joint (2), a first connecting rod (3), a second connecting rod (4), a telescopic rod (5), an angle adjustment cylinder (6), a first lead screw (7), a support wheel assembly (8), a swing adjustment cylinder (9), a main beam (10), and a plow body assembly (11). The flipping mechanism (1) is capable of rotating along the flipping axis; The upper end of the universal joint (2) is rotatably connected to the flipping shaft of the flipping mechanism (1), and its lower end is hinged to one end of the telescopic rod (5). The upper ends of the first link (3) and the second link (4) are both hinged to the flipping mechanism (1), and their lower ends are respectively hinged to the link seat (14), forming a parallel four-bar hinge structure. The connecting rod seat (14) rotates around the main beam (10) with the hinge point between the second connecting rod (4) and the connecting rod seat (14) as the axis; The cylinder end of the swing adjustment cylinder (9) is hinged to the flipping mechanism (1), and the piston rod end is hinged to the second connecting rod (4), driving the beam (10) to swing laterally around the hinge point of the first connecting rod (3) and the second connecting rod (4) to adjust the coverage of the working width. The cylinder end of the angle adjusting cylinder (6) is hinged to the connecting rod seat (14), and the piston rod end is connected to the main beam (10) through the connecting block (13). The connecting block (13) is also connected to one end of the first lead screw (7), and the other end of the first lead screw (7) is connected to the middle of the main beam (10) for coordinating with the angle adjusting cylinder (6) to adjust the tilt angle of the main beam (10). The support wheel assembly (8) is connected to the other end of the telescopic rod (5) and the main beam (10) respectively, and is used to cooperate with the tractor suspension force to accurately control the tillage depth and assist the stability of the whole machine operation; The plow assembly (11) is mounted on the main beam (10) and completes soil tillage operations synchronously with the swing and angle adjustment of the main beam (10).

2. The semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The universal joint (2) includes a rotating rod (201), a first swing rod (202), and a second swing rod (203); one end of the rotating rod (201) is hinged to the flipping shaft of the flipping mechanism (1), and the rotating rod (201), the first swing rod (202), and the second swing rod (203) are connected in sequence. The hinge direction between the rotating rod (201) and the first swing rod (202) is perpendicular to the hinge direction between the first swing rod (202) and the second swing rod (203).

3. The semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The telescopic rod (5) includes an outer rod (501), an inner rod (502), and a locking device (503). The outer rod (501) is nested outside the inner rod (502), and the locking device (503) is connected between the outer rod (501) and the inner rod (502). The outer rod (501) is provided with a limiting hole (504) for telescopic limitation by bolts and corresponding elongated holes (505) on the inner rod (502).

4. The semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The main beam (10) is also fixedly connected to an extension beam (12), which is located at the front end and / or rear end of the main beam (10); the plow body assembly (11) is evenly distributed on the main beam (10) and the extension beam (12), and the tillage width is increased by expanding the plow body mounting position.

5. A semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The support wheel assembly (8) includes a first support wheel frame (801), a second support wheel frame (802), support wheels (803), a lifting cylinder frame (804), a lifting cylinder (805), and an auxiliary tilting frame (806); the front end of the first support wheel frame (801) is hinged to the telescopic rod (5), allowing the first support wheel frame (801) to swing left and right relative to the telescopic rod (5); the second support wheel frame (802) is hinged to the end of the first support wheel frame (801), allowing the second support wheel frame (802) to swing right and left relative to the telescopic rod (5). The first support wheel frame (801) rotates in the vertical plane; the support wheel (803) is located below the second support wheel frame (802), the lifting cylinder frame (804) is located above the first support wheel frame (801), and the lifting cylinder frame (804) is connected to the second support wheel frame (802) through the lifting cylinder (805); one end of the auxiliary tilting frame (806) is axially connected to the lifting cylinder frame (804), and the other end is fixedly connected to the main beam (10) to assist the main beam (10) in tilting.

6. The semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The connecting rod seat (14) and the main beam (10) have corresponding positioning holes (16) that can lock the relative positions of the connecting rod seat and the main beam by means of pins.

7. The semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The connecting block (13) is triangular, and its three corners are respectively hinged to the main beam (10), the angle adjusting cylinder (6) and the first lead screw (7).

8. The semi-suspended reversible plow with a movable working position according to claim 1, characterized in that: The main beam (10) is provided with a protrusion (17), one end of the second lead screw (15) is hinged to the protrusion (17), and the other end is hinged to the auxiliary tilting frame (806).

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