A structure of a reversible plow capable of infinitely adjusting

Abstract

The utility model discloses a kind of overturning plough structure of stepless adjustment, plough head assembly is rotatably connected with overturning block, overturning block is clamped in the upper and lower sides of girder;Multiple plough body assemblies are provided on girder;The outside of overturning block is equipped with first overturning block clamping plate and second overturning block clamping plate;First overturning block clamping plate is cooperatively installed with overturning block by fastener;Second overturning block clamping plate is installed in the outside of first overturning block clamping plate;The side of first overturning block clamping plate is provided with protruding part;One end of swing amplitude screw rod and one end of auxiliary adjusting screw rod are hinged on the same hinged point of protruding part, the other end of auxiliary adjusting screw rod is hinged with the middle part of girder, the other end of swing amplitude screw rod is hinged with the front end of girder;One end of swing angle screw rod is hinged on protruding part, and the other end is hinged on girder;Auxiliary wheel assembly is arranged on girder.The utility model realizes the stepless adjustment of girder swing amplitude and angle, expands the range of cultivation, improves work efficiency and adaptability.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically to a reversible plow structure that can be infinitely adjusted. Background Technology

[0002] Agricultural tillage machinery is the core equipment of modern agricultural production. Among them, the plowshare, as a key component for soil tillage, directly determines the quality of cultivated land, operational efficiency, and energy consumption of the machinery. With the development of large-scale and precision agriculture, the traditional plowshare structure has gradually revealed its technical bottlenecks in adapting to complex tillage needs, specifically as follows:

[0003] First, the adjustment methods have limitations, making it difficult to achieve precision tillage. Existing plow body swing amplitude and angle adjustments mostly employ a graded positioning structure, meaning discrete adjustment is achieved through preset gear positions or fixed pins (usually only 3-5 adjustment gears). This design limits adjustment precision, making it impossible to continuously adapt to soil texture, crop residue density, tillage depth requirements, etc. For example, in heavy clay soils, the swing angle needs to be reduced to avoid overload, while in sandy soils, the swing amplitude needs to be increased to ensure uniform tillage. However, the gear intervals of traditional structures (angle adjustment intervals are usually 5°-10°, amplitude adjustment intervals are 3-5cm) cannot achieve this precise matching, often leading to problems such as uneven tillage depth, insufficient soil fragmentation, or sudden changes in agricultural machinery load.

[0004] Secondly, the fixed tillage area leads to low operational efficiency. The tillage width of traditional plows is determined by the number and layout of the plow assembly, and is limited by the strength of the main beam structure and the overall machine balance, resulting in a fixed tillage width of 1.2-1.8 meters per pass. For large-scale farmland with thousands of acres, multiple passes are required to cover the entire area, increasing the mileage of the agricultural machinery and causing soil compaction due to repeated compaction, which affects crop root development. Although some improved designs attempt to increase the number of plows to expand the area, the lack of optimized stress structure easily leads to problems such as main beam deformation and inconsistent plow penetration depth, which in turn reduces the quality of tillage.

[0005] Third, the adjustment mechanism lacks stability and has a weak ability to adapt to complex working conditions. Existing plowshare adjustment components mostly use simple bolt fastening or pin-hole fitting. During high-intensity tillage or operation on rugged terrain, vibration can easily cause adjustment parameters to deviate. For example, the gap between the swing angle screw and the positioning hole gradually increases with vibration, resulting in a deviation of 3°-5° between the actual plowshare angle and the set value. This necessitates frequent shutdowns for inspection and adjustment, severely impacting operational continuity. Furthermore, traditional structures lack auxiliary support components, making them prone to overloading on one side of the plowshare during slope tillage due to center of gravity shift, accelerating component wear and shortening service life.

[0006] Fourth, existing improvement solutions have obvious limitations. Some technologies achieve automated adjustment by adding hydraulic drive, but they do not solve the core problem of stepless adjustment and still rely on preset gears; other designs attempt to expand the tillage range by using a folding beam, but the folding structure increases the weight of the machine, requires a high-power tractor, increases the cost of use, and makes it difficult to promote in small and medium-sized farms.

[0007] In summary, the shortcomings of existing plow structures in terms of adjustment precision, tillage range, and adaptability to working conditions have become important factors restricting efficient and precise agricultural farming. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a continuously adjustable reversible plow structure, which solves the issues of insufficient adjustment precision, poor structural stability, limited tillage range, and complex operation in existing technologies. It enables continuous adjustment of the swing amplitude and angle, expands the tillage range, and improves operational efficiency and adaptability.

[0009] The technical solution adopted in this utility model is as follows: a continuously adjustable reversible plow structure, characterized in that it includes a plow head assembly, a reversible block, a swing amplitude screw, a swing angle screw, an auxiliary adjustment screw, a main beam, an auxiliary wheel assembly, and a plow body assembly; the plow head assembly is rotatably connected to the reversible block, and the reversible block is clamped on the upper and lower sides of the main beam; multiple plow body assemblies are arranged on the main beam; a first reversible block clamping plate and a second reversible block clamping plate are provided on the outer side of the reversible block; the first reversible block clamping plate is installed with the reversible block by fasteners; the second reversible block clamping plate is installed on the outer side of the first reversible block clamping plate;

[0010] The first flip block clamp plate has a protrusion on its side; one end of the swing amplitude screw and one end of the auxiliary adjustment screw are hinged together at the same hinge point on the protrusion, the other end of the auxiliary adjustment screw is hinged to the middle of the main beam, and the other end of the swing amplitude screw is hinged to the front end of the main beam; one end of the swing angle screw is hinged to the protrusion, and the other end is hinged to the main beam; the auxiliary wheel assembly is disposed on the main beam.

[0011] Furthermore, the second flip block clamping plate is provided with a strip-shaped hole, a first arc-shaped hole, a second arc-shaped hole, and a third arc-shaped hole that are in the same position as the first flip block clamping plate; the strip-shaped hole is provided at the front end of the first flip block clamping plate and the second flip block clamping plate; the first arc-shaped hole, the second arc-shaped hole, and the third arc-shaped hole are provided at the rear end of the first flip block clamping plate and the second flip block clamping plate.

[0012] The front end of the main beam is provided with a first positioning hole, and the rear end of the main beam is provided with a second positioning hole, a third positioning hole and a fourth positioning hole; the first positioning hole cooperates with the strip hole through a connector, and the first arc-shaped hole, the second arc-shaped hole and the third arc-shaped hole cooperate with the second positioning hole, the third positioning hole and the fourth positioning hole respectively through connectors.

[0013] Furthermore, when the first positioning hole moves relative to the strip hole and the angle of the beam changes, there is a correspondence between the second positioning hole and the first arc-shaped hole, the third positioning hole and the second arc-shaped hole, or the fourth positioning hole and the third arc-shaped hole.

[0014] Furthermore, the auxiliary adjusting screw is provided with several limiting holes, and the swing angle of the beam is limited by inserting a pin into the limiting holes.

[0015] Furthermore, the other end of the swing angle lead screw is hinged to the fourth positioning hole on the main beam.

[0016] Furthermore, multiple plow body assemblies are distributed at intervals on the main beam.

[0017] The beneficial effects of this utility model are:

[0018] 1. Achieve stepless adjustment and strong adaptability: By cooperating the swing amplitude screw with the strip hole and the swing angle screw with the arc hole, the swing amplitude and angle of the reversible plow can be continuously adjusted with an adjustment accuracy of ±1° and ±1mm, which can accurately adapt to different soil textures and crop needs.

[0019] 2. Stable structure and high reliability: The flipping block is clamped on the upper and lower sides of the main beam, and the fastening effect of the flipping block clamping plate significantly improves the overall structural rigidity; the hinged fit between the screw and the hole and the design of the limiting hole can effectively prevent parameter deviation caused by vibration during the tillage process and ensure adjustment stability.

[0020] 3. Easy to operate and widely adaptable: The adjustment process does not require disassembling parts and can be completed directly by the lead screw. With the limit hole, the required parameters can be quickly locked. The weight reduction hole can reduce the energy consumption of the whole machine and is suitable for various terrains such as plains and slopes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the flipping block in this utility model;

[0023] Figure 3 This is a partially enlarged view of the flipping block in this utility model;

[0024] Figure 4This is a partially enlarged view of the main beam in this utility model;

[0025] Figure 5 The structural explosion of the flipping block in this utility model Figure 1 ;

[0026] Figure 6 The structural explosion of the flipping block in this utility model Figure 2 ;

[0027] In the diagram: 1-Plowhead assembly, 2-Tilting block, 9a-Strip hole, 9b-First arc hole, 9c-Second arc hole, 9d-Third arc hole, 3-Protrusion, 4-Swing amplitude screw, 5-Swing angle screw, 6-Auxiliary adjustment screw, 7-Main beam, 7a-First positioning hole, 7b-Second positioning hole, 7c-Third positioning hole, 7d-Fourth positioning hole, 8-Auxiliary wheel assembly, 9-First tilting block clamping plate, 9a-Strip hole, 9b-First arc hole, 9c-Second arc hole, 9d-Third arc hole, 10-Second tilting block clamping plate, 11-Pin, 12-Limiting hole, 13-Plow body assembly. Detailed Implementation

[0028] 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.

[0029] like Figure 1 and Figure 2 As shown, this utility model is a stepless adjustable reversible plow structure, mainly composed of a plow head assembly 1, a reversible block 2, a swing amplitude lead screw 4, a swing angle lead screw 5, an auxiliary adjustment lead screw 6, a main beam 7, an auxiliary wheel assembly 8, a first reversible block clamping plate 9, a second reversible block clamping plate 10, and multiple plow body assemblies 13 spaced apart on the main beam. The components work together to achieve stepless adjustment and efficient tillage functions.

[0030] The plowshare assembly 1 is rotatably connected to the reversing block 2. The reversing block can be rotated by the reversing cylinder on the plowshare assembly, thereby realizing the reversing function of the plow. The first reversing block clamping plate 9 is clamped on the upper and lower sides of the reversing block 2 and the main beam 7, forming a symmetrical wrapping structure. This clamping design can distribute the torque during plowing to the contact surface between the first reversing block clamping plate 9 and the main beam 7, avoiding local stress concentration and significantly improving the torsional strength of the overall structure. It is not easy to deform even when plowing deeply or encountering obstacles such as stones.

[0031] The first flipping block clamp 9 has an integrally formed protrusion 3 on its side. This protrusion 3 serves as the central connection point for the adjustment components, bringing together one end of the swing amplitude screw 4, the swing angle screw 5, and the auxiliary adjustment screw 6 to form a triangular stable support structure. Specifically, one end of the swing amplitude screw 4 and one end of the auxiliary adjustment screw 6 are hinged together at the same hinge point on the protrusion 3. This common-point design reduces mutual interference during adjustment, making the amplitude adjustment more precise. The other end of the auxiliary adjustment screw 6 is hinged to the middle of the main beam 7, and the other end of the swing amplitude screw 4 is hinged to the front end of the main beam 7. The three form a stable triangular adjustment mechanism, enabling continuous adjustment of multiple angles and amplitudes through the extension and retraction of the screws.

[0032] One end of the swing angle lead screw 5 is hinged to the protrusion 3, and the other end is hinged to the fourth positioning hole 7d of the main beam 7, as shown below. Figure 4 As shown, when the oscillating screw 5 is rotated, its telescopic movement causes the angle of the main beam 7 to deflect. Combined with the guiding effect of the arc-shaped hole and the positioning hole, stepless angle adjustment is achieved. This adjustment method requires no disassembly of any parts, and can be completed by a single person, significantly improving the speed of adaptation to complex terrain.

[0033] A second rotating block clamping plate 10 is provided on the outer side of the first rotating block clamping plate 9. The second rotating block clamping plate 10 and the first rotating block clamping plate 9 are installed together by bolts or other fasteners. This structure can firmly clamp the main beam 7 in the middle, making the relative movement between the first rotating block clamping plate 9 and the main beam 7 more stable and avoiding the increase in gap caused by tillage vibration. Figure 3 and Figure 4 As shown, the second tilting block clamping plate 10 is also provided with a strip-shaped hole 9a, a first arc-shaped hole 9b, a second arc-shaped hole 9c, and a third arc-shaped hole 9d, which are positioned in the same place as the first tilting block clamping plate 9. The strip-shaped hole 9a is located at the front end, and the arc-shaped hole is located at the rear end, corresponding to and engaging with the first positioning hole 7a, the second positioning hole 7b, the third positioning hole 7c, and the fourth positioning hole 7d on the main beam 7. When adjusting the swing amplitude, the swing amplitude screw 4 is rotated, causing the first positioning hole 7a to slide along the strip-shaped hole 9a, which is used to adjust the wheelbase between the main beam 7 and the tractor. At the same time, the second positioning hole 7b slides synchronously with one of the following sets of holes: the first arc-shaped hole 9b, the third positioning hole 7c with the second arc-shaped hole 9c, or the fourth positioning hole 7d with the third arc-shaped hole 9d. The multiple sets of hole positions not only improve the stability of the adjustment, but also ensure the coordination of the movement of each component during the adjustment process by limiting the trajectory of the arc-shaped hole, thus avoiding jamming. When the tractor has sufficient horsepower, the swing amplitude and angle of the main beam 7 can also be adjusted to the maximum, maximizing the cultivated area and improving work efficiency.

[0034] The auxiliary adjusting screw 6 is equipped with several limiting holes 12. By inserting pins 11 into the limiting holes 12 at different positions, the swing angle of the main beam 7 can be limited. This design complements the stepless adjustment, meeting the needs of fine adjustment while quickly locking the angle, and preventing structural damage caused by over-adjustment, thus improving operational safety.

[0035] The auxiliary wheel assembly 8 is located at the end of the main beam 7 and can be adjusted in height to adapt to different terrains, ensuring that all plow assemblies 13 penetrate the soil at a consistent depth, thereby further improving the uniformity of tillage quality.

[0036] In summary, this utility model achieves stepless adjustment of swing amplitude and angle through the coordinated design of various components, expanding the cultivation range while taking into account structural stability and ease of operation, making it suitable for various soil conditions and cultivation needs.

[0037] 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 continuously adjustable reversible plow structure, characterized in that, The plowshare assembly includes a plow head assembly (1), a tilting block (2), a swing amplitude screw (4), a swing angle screw (5), an auxiliary adjustment screw (6), a main beam (7), an auxiliary wheel assembly (8), and a plow body assembly (13). The plow head assembly (1) is rotatably connected to the tilting block (2), and the tilting block (2) is clamped on the upper and lower sides of the main beam (7). Multiple plow body assemblies (13) are provided on the main beam (7). A first tilting block clamping plate (9) and a second tilting block clamping plate (10) are provided on the outer side of the tilting block (2). The first tilting block clamping plate (9) and the tilting block (2) are installed together by fasteners. The second tilting block clamping plate (10) is installed on the outer side of the first tilting block clamping plate (9). The first flip block clamp (9) has a protrusion (3) on its side; one end of the swing amplitude screw (4) and one end of the auxiliary adjustment screw (6) are hinged together at the same hinge point on the protrusion (3); the other end of the auxiliary adjustment screw (6) is hinged to the middle of the main beam (7); the other end of the swing amplitude screw (4) is hinged to the front end of the main beam (7); one end of the swing angle screw (5) is hinged to the protrusion (3), and the other end is hinged to the main beam (7); the auxiliary wheel assembly (8) is set on the main beam (7).

2. The infinitely adjustable reversible plow structure according to claim 1, characterized in that, The second flip block clamping plate (10) is provided with a strip hole (9a), a first arc hole (9b), a second arc hole (9c) and a third arc hole (9d) that are in the same position as the first flip block clamping plate (9); the strip hole (9a) is opened at the front end of the first flip block clamping plate (9) and the second flip block clamping plate (10); the first arc hole (9b), the second arc hole (9c) and the third arc hole (9d) are opened at the rear end of the first flip block clamping plate (9) and the second flip block clamping plate (10); The front end of the main beam (7) is provided with a first positioning hole (7a), and the rear end of the main beam (7) is provided with a second positioning hole (7b), a third positioning hole (7c) and a fourth positioning hole (7d). The first positioning hole (7a) is connected to the strip hole (9a) through a connector, and the first arc hole (9b), the second arc hole (9c) and the third arc hole (9d) are connected to the second positioning hole (7b), the third positioning hole (7c) and the fourth positioning hole (7d) respectively through connectors.

3. The infinitely adjustable reversible plow structure according to claim 2, characterized in that, When the first positioning hole (7a) moves relative to the strip hole (9a) and the angle of the beam changes, the second positioning hole (7b) corresponds to one of the following pairs: the first arc hole (9b), the third positioning hole (7c) corresponds to the second arc hole (9c), or the fourth positioning hole (7d) corresponds to the third arc hole (9d).

4. The infinitely adjustable reversible plow structure according to claim 1, characterized in that, The auxiliary adjusting screw (6) is provided with several limiting holes (12), and the swing angle of the main beam (7) is limited by inserting a pin (11) into the limiting holes (12).

5. The infinitely adjustable reversible plow structure according to claim 1, characterized in that, The other end of the swing angle screw (5) is hinged in the fourth positioning hole (7d) on the beam (7).

6. The infinitely adjustable reversible plow structure according to claim 1, characterized in that, Multiple plow body assemblies (13) are spaced apart on the main beam (7).

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