A turnover plough with manually adjustable beam angle

Abstract

The utility model discloses a kind of overturning ploughs of manually adjustable girder angle, including traction frame assembly, turnover block, first fine adjustment screw rod, girder, extension beam, support wheel assembly and second fine adjustment screw rod;The middle part of the traction frame assembly is connected with turnover block, the turnover block can be rotated relative to the traction frame assembly;The turnover block is double-layered clamping plate structure, clamped in the upper and lower two sides of the girder;The girder is hinged with turnover block, the first fine adjustment screw rod and second fine adjustment screw rod are respectively arranged in the two sides of the hinge point between girder and turnover block;The extension beam is arranged in girder terminal;A plurality of plough body assembly are sequentially installed on girder and extension beam;The support wheel assembly is arranged on extension beam or girder.The utility model can be finely adjusted the working angle of girder by two fine adjustment screw rods, switch in table-on working mode and table-under working mode by pin shaft positioning.

Description

Technical Field

[0001] This utility model belongs to the technical field, specifically relating to a reversible plow with manually adjustable beam angle. Background Technology

[0002] Currently, reversible plows and adjustable-width plows generally use hydraulic adjustment methods to adjust the beam angle and tillage width. The specific operation involves a pump in the hydraulic system supplying pressurized oil. This pressurized oil enters the hydraulic cylinder and pushes the piston, which in turn moves the plowshare assembly connecting rod, thereby adjusting the connecting beam and ultimately changing the beam angle and tillage width.

[0003] However, this complex hydraulic adjustment structure presents numerous problems. In terms of maintenance costs, the hydraulic system contains many precision components such as oil pumps, hydraulic cylinders, and seals. Replacement costs are high if these components wear out, age, or are damaged. Furthermore, maintaining the hydraulic system requires specialized technicians and specific equipment, which undoubtedly increases labor and equipment costs, thus raising the overall maintenance cost of the adjustable plow.

[0004] Regarding the vertical accuracy between the plowshare and the plow head assembly, the hydraulic system is prone to issues such as hydraulic oil leakage and unstable pressure during long-term use. These problems can lead to insufficient precision in force and displacement control during adjustment, which in turn affects the position of the plow head assembly, making it difficult to maintain strict vertical accuracy between the plowshare and the plow head assembly. Deviations in vertical accuracy can affect tillage quality, potentially leading to uneven tillage depth and uneven soil turning.

[0005] In terms of maintenance difficulty, the hydraulic regulating structure is composed of numerous pipelines, valves, and components, making it complex. When a system malfunctions, it is necessary to check each component one by one to pinpoint the fault, a tedious and time-consuming process. Moreover, the internal structure of some hydraulic components is intricate, requiring extremely high technical skills for repair, which is beyond the capabilities of ordinary operators, further increasing the difficulty of maintenance.

[0006] In contrast, the purely manual adjustment mechanism, with its simple structure and convenient adjustment, remains essential. The purely manual adjustment mechanism lacks complex hydraulic components and piping, relying primarily on mechanical linkages and manual operating parts for adjustment. This simplifies maintenance; operators can perform routine checks and simple parts replacements, eliminating the need for specialized technicians and expensive equipment, significantly reducing maintenance costs. Furthermore, the force and displacement of manual adjustment are entirely controlled by the operator, resulting in relatively stable adjustment accuracy and better ensuring the vertical accuracy between the plowshare and the plowshare assembly. In addition, the simple structure facilitates repairs, making troubleshooting and parts replacement more convenient. These advantages ultimately significantly reduce operator operating costs, making the purely manual adjustment mechanism irreplaceable in scenarios with relatively low farming requirements and a focus on cost control. Summary of the Invention

[0007] This invention provides a reversible plow with manually adjustable beam angle to solve the above-mentioned problems.

[0008] The technical solution adopted by this utility model is as follows: a reversible plow with manually adjustable beam angle, including a traction frame assembly, a reversible block, a first fine-tuning screw, a main beam, an extension beam, a support wheel assembly, and a second fine-tuning screw; the reversible block is connected to the middle of the traction frame assembly, and the reversible block can rotate relative to the traction frame assembly; the reversible block has a double-layer clamping plate structure, clamping the upper and lower surfaces of the main beam; the main beam is hinged to the reversible block, and the first and second fine-tuning screws are respectively arranged on both sides of the hinge point between the main beam and the reversible block; the extension beam is arranged at the end of the main beam; several plow body assemblies are sequentially installed on the main beam and the extension beam; the support wheel assembly is arranged on the extension beam or the main beam.

[0009] Furthermore, the flip block includes a flip block protrusion, a front flip block, and a rear flip block; the front flip block is L-shaped, with several positioning holes in its middle for connecting with the second fine-tuning screw, and an arc-shaped limiting hole at its end; the rear flip block is triangular and located behind the front flip block for hinged connection with the main beam; the flip block protrusion is located on the front flip block on the side away from the arc-shaped limiting hole for connecting with the first fine-tuning screw.

[0010] Furthermore, the flip block includes a flip block protrusion, a front flip block, and a rear flip block; the front flip block is L-shaped, with several positioning holes in its middle for connecting with the second fine-tuning screw, and its end intersects with the main beam; the rear flip block is triangular, located behind the front flip block, and has an arc-shaped limiting hole; the flip block protrusion is located on the front flip block on the side away from the arc-shaped limiting hole, for connecting with the first fine-tuning screw.

[0011] The beneficial effects of this utility model are: this utility model can finely adjust the tillage angle of the main beam through two micro-adjustment screws, and position it through a pin, so as to switch between the tillage mode on the platform and the tillage mode below the platform. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the first type of flipping block in this utility model;

[0014] Figure 3 This is a schematic diagram of the second overall structure in this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the second type of flipping block in this utility model;

[0016] In the figure: 1-Traction frame assembly, 2-Tilting block, 201-Tilting block protrusion, 202-Front tilting block, 203-Rear tilting block, 204-Arc-shaped limiting hole, 205-Positioning hole, 3-First fine-tuning screw, 4-Main beam, 5-Extension beam, 6-Support wheel assembly, 7-Second fine-tuning screw, 8-Plow body assembly. Detailed Implementation

[0017] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort. To facilitate understanding of this utility model, a more detailed description of this utility model will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown, this utility model is a reversible plow with manually adjustable beam angle, including a traction frame assembly 1, a reversible block 2, a first fine-tuning screw 3, a main beam 4, an extension beam 5, a support wheel assembly 6, and a second fine-tuning screw 7. The traction frame assembly 1 serves as the power connection base for the equipment. Its front end is connected to the tractor via a three-point suspension mechanism to ensure stable movement of the equipment with the tractor. The rear middle part is connected to the reversible block 2 via a rotating shaft, and the traction frame assembly 1 is equipped with a reversible cylinder, which can drive the reversible block 2 to rotate 180° axially, providing power for switching tillage modes. The reversible block 2 adopts a double-layer clamping plate structure, tightly clamping the upper and lower surfaces of the main beam 4. Compared with the traditional single-layer connection, this structural design can significantly improve the connection rigidity between the main beam 4 and the reversible block 2, avoiding the shaking of the main beam 4 caused by soil resistance during tillage. Even when working on hard terrain, it can reduce component deformation and ensure adjustment accuracy.

[0019] The flip block 2 is a key component for achieving angle limiting and lead screw connection. Its structure has two implementation methods, both adaptable to different operational scenarios. For example... Figure 2 As shown, in a preferred embodiment of this utility model, the first type of flip block structure comprises a flip block protrusion 201, a front flip block 202, and a rear flip block 203. The front flip block 202 is L-shaped with several positioning holes 205 in the middle for connecting to the end of the second fine-tuning screw 7. By selecting different positioning holes 205, the action point of the second fine-tuning screw 7 can be initially defined. The end is provided with an arc-shaped limiting hole 204, which can limit the maximum rotation angle of the main beam 4 by inserting a pin to prevent over-adjustment. The rear flip block 203 is triangular and is located behind the front flip block 202. Its top end is connected to the main beam 4 through a hinge shaft to form a rotation fulcrum for adjusting the angle of the main beam 4. The flip block protrusion 201 is located on the side of the front flip block 202 away from the arc-shaped limiting hole 204 and is used to connect to the end of the first fine-tuning screw 3, forming a symmetrical adjustment arm with the second fine-tuning screw 7.

[0020] like Figure 3 and Figure 4 As shown, as another preferred embodiment of the present invention, the difference between the second type of flip block structure and the first type of structure is that the end of the front flip block 202 directly connects with the main beam 4, while the arc-shaped limiting hole 204 is set on the triangular rear flip block 203. The connection relationship of other components such as the flip block protrusion 201 and the positioning hole 205 remains unchanged. This design, by moving the limiting structure to the rear, can further improve the adjustment flexibility of the front end of the main beam 4, and is suitable for scenarios that require a larger angle adjustment range.

[0021] Both of the above structures ensure structural strength while being lightweight. Combined with the mechanical limiting of the arc-shaped limiting hole 204, they solve the problems of easy overtravel and low farming safety of traditional manual adjustment.

[0022] The first fine-tuning screw 3 and the second fine-tuning screw 7 are respectively connected to the flipping block 2 and the main beam 4, and are symmetrically distributed on both sides of the hinge point between the main beam 4 and the flipping block 2. During the adjustment process, by selecting different positioning holes 205 on the front flipping block 202 to connect the second fine-tuning screw 7, the angle range of the main beam 4 can be initially determined. The operator then rotates the first fine-tuning screw 3 and the second fine-tuning screw 7, using the screw's helical transmission characteristics to drive the main beam 4 to rotate slightly around the hinge point. For example, when the first fine-tuning screw 3 is rotated clockwise, its extension pushes the main beam 4 to tilt to one side, and simultaneously, the second fine-tuning screw 7 is rotated counterclockwise, its shortening cooperates with the tilting of the main beam 4, ultimately achieving fine-tuning of the angle. This mechanism offers significant advantages over traditional hydraulic adjustment. It provides stable precision, is unaffected by hydraulic oil compressibility or pressure fluctuations, and the self-locking characteristic of the lead screw after adjustment firmly locks the angle, preventing angle deviation due to vibration during tillage. This ensures the vertical accuracy of the plow assembly 8 to the ground and solves the problem of uneven tillage width caused by hydraulic adjustment. Furthermore, it is easy to operate; adjustment can be completed simply by manually rotating the lead screw, requiring no professional technical training. Ordinary operators can complete angle correction within 5 minutes. It is also cost-effective, eliminating the need for precision components such as hydraulic pumps and seals, and achieving adjustment solely through a mechanical lead screw. Maintenance only requires checking the lubrication of the lead screw and connecting bolts, resulting in significantly lower annual maintenance costs compared to hydraulic structures.

[0023] Regarding the switching of tillage modes, the tilting block 2 is rotated 180° by the tilting cylinder on the traction frame assembly 1, which can cause the main beam 4 and plow body assembly 8 to tilt. The tilting block can quickly switch between "platform tillage mode" and "under-platform tillage mode" by changing the installation position and cooperating with the pin in the arc-shaped limiting hole 204. The mechanical tilting structure has no risk of hydraulic leakage. In the auxiliary structure, the extension beam 5 connected to the end of the main beam 4 can be expanded to install 1-2 plow body assemblies 8 to flexibly adapt to different tillage width requirements. The support wheel assembly 6 is installed in the middle of the extension beam 5 or the main beam 4. By adjusting the wheel height, the tillage depth can be adjusted, while ensuring the machine body is level, further improving the tillage flatness. Both are purely mechanical connections. During maintenance, only the wheel axle lubrication and bolt tightness need to be checked, and the operating cost is extremely low.

[0024] Compared with hydraulic adjustment structures, this utility model eliminates precision hydraulic components, significantly reducing manufacturing costs. Maintenance requires no professional personnel, resulting in a substantial reduction in overall costs. Mechanical fine-tuning ensures stable angle accuracy, improving tillage quality.

[0025] The various embodiments described in this specification are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reversible plow with manually adjustable beam angle, characterized in that: The assembly includes a traction frame assembly (1), a flip block (2), a first fine-tuning screw (3), a main beam (4), an extension beam (5), a support wheel assembly (6), and a second fine-tuning screw (7). The traction frame assembly (1) is connected to the middle of the flip block (2), which can rotate relative to the traction frame assembly (1). The flip block (2) has a double-layer clamping structure and is clamped on the upper and lower surfaces of the main beam (4). The main beam (4) is hinged to the flip block (2), and the first fine-tuning screw (3) and the second fine-tuning screw (7) are respectively set on both sides of the hinge point between the main beam (4) and the flip block (2). The extension beam (5) is set at the end of the main beam (4). Several plow body assemblies (8) are installed sequentially on the main beam (4) and the extension beam (5). The support wheel assembly (6) is set on the extension beam (5) or the main beam (4).

2. The reversible plow with manually adjustable beam angle according to claim 1, characterized in that: The flip block (2) includes a flip block protrusion (201), a front flip block (202), and a rear flip block (203); the front flip block (202) is L-shaped, with several positioning holes (205) in the middle for connecting with the second fine-tuning screw (7), and an arc-shaped limiting hole (204) at the end; the rear flip block (203) is triangular and is located behind the front flip block (202) for hinged connection with the main beam (4); the flip block protrusion (201) is located on the front flip block (202) on the side away from the arc-shaped limiting hole (204) for connecting with the first fine-tuning screw (3).

3. The reversible plow with manually adjustable beam angle according to claim 1, characterized in that: The flip block (2) includes a flip block protrusion (201), a front flip block (202), and a rear flip block (203); the front flip block (202) is L-shaped, with several positioning holes (205) in its middle for connecting with the second fine-tuning screw (7), and its end intersects with the main beam (4); the rear flip block (203) is triangular, located behind the front flip block (202), and has an arc-shaped limiting hole (204); the flip block protrusion (201) is located on the front flip block (202) on the side away from the arc-shaped limiting hole (204) for connecting with the first fine-tuning screw (3).

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