High-strength shearing-resistant integrated chassis of four-wheel-drive mini-tiller

Abstract

The utility model relates to the technical field of four-wheel-drive mini-tillers, in particular to a high-strength shearing-resistant integrated chassis of a four-wheel-drive mini-tiller, which comprises two symmetrical frames, a bottom plate is arranged between the frames, each frame is of an integrated structure formed by a horizontal section and a bent part, the horizontal section ensures the transverse stability of the chassis, and the bent part is arranged on the bottom plate. The bending portion provides necessary elastic space for the chassis to absorb ground impact, reinforcing pieces are symmetrically connected between the two sides of the bottom plate and the frame, and anti-shearing battens distributed in a # shape are arranged at the top of the bottom plate. According to the high-strength shearing-resistant integrated chassis of the four-wheel-drive mini-tiller, the stability and durability of a machine body in a complex operation environment are improved, the failure rate and the maintenance frequency are reduced, and the operation efficiency and the economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of four-wheel drive micro-tillage machines, in particular to a high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine. Background Art

[0002] The four-wheel drive tiller is a small agricultural machine that is widely used in narrow or complex terrains such as dry land, paddy fields, orchards, plains, mountains, and hills. Compared with traditional two-wheel drive tillers, the four-wheel drive design provides stronger traction and stability, and can work more effectively on soft or uneven ground, while also being better able to cope with uphill operations.

[0003] Existing four-wheel drive tillage machine chassis designs often adopt a split structure. When faced with complex terrain and high-intensity operations, this structure is prone to problems such as loose connections and chassis distortion, which in turn affects the stability and operating efficiency of the entire machine. Especially in environments with heavy soil and many stones, the insufficient shear resistance of the chassis will lead to a decrease in transmission efficiency, and in severe cases even damage key components, increasing maintenance costs and downtime. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength shear-resistant integrated chassis for a four-wheel drive micro-tillage machine, so as to solve the problem raised in the above-mentioned background technology that the current chassis design of the four-wheel drive micro-tillage machine often adopts a split structure. When facing complex terrain and high-intensity operations, this structure is prone to problems such as loose connection parts and chassis distortion, which in turn affects the stability and operating efficiency of the entire machine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine, including a frame, two of which are symmetrically arranged, a bottom plate is arranged between the frames, the frame is an integrated structure consisting of a horizontal section and a bent portion, the horizontal section ensures the lateral stability of the chassis, and the bent portion provides the chassis with the necessary elastic space to absorb ground impact, reinforcements are symmetrically connected between the two sides of the bottom plate and the frame, and the top of the bottom plate is provided with anti-shear strips distributed in a "well" shape.

[0006] Preferably, the four edges of the bottom plate are provided with curved edges, and the lower surface of the bottom plate is coated with a wear-resistant and anti-slip coating.

[0007] Preferably, the corresponding positions of the connection between the reinforcement and the base plate are fitted together, and bolt holes are symmetrically provided at the connection between the reinforcement and the base plate, and the base plate is provided with docking holes that match the bolt holes.

[0008] Preferably, the connection between the reinforcement member and the frame is fixed by welding, and a recessed reinforcement rib is provided on the outer side of the connection between the reinforcement member and the frame.

[0009] Preferably, a plurality of reinforcing ribs are longitudinally provided on the lower surface of the bottom plate, and the reinforcing ribs are in a flat plate structure.

[0010] Preferably, an anti-shear strip is provided at the bottom of the connection between the horizontal section and the bending portion, and the curvature of the anti-shear strip is consistent with the curvature of the connection between the horizontal section and the bending portion.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine improves the stability and durability of the machine body in complex working environments, reduces the failure rate and maintenance times, and improves working efficiency and economic benefits. At the same time, the curved edges around the edges of the bottom plate enhance the impact resistance of the bottom plate edge, effectively preventing edge damage caused by collision during operation, and by increasing the transition surface when in contact with the ground, the risk of foreign objects such as soil and stones getting stuck is reduced, thereby improving the overall protective performance of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of a high-strength shear-resistant integrated chassis structure of a four-wheel drive micro-tillage machine of the utility model;

[0013] Figure 2 This is a schematic diagram of the bottom structure of a high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine of the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the side structure of a frame of a high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine.

[0015] In the figure: 1, frame; 101, horizontal section; 102, bending part; 2, bottom plate; 3, reinforcement; 301, bolt hole; 302, socket-shaped reinforcement rib; 4, anti-shear strip; 5, reinforcement rib; 6, anti-shear strip block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine, including a frame 1, two frames symmetrically arranged on the frame 1, which are formed by high-strength alloy materials through precision casting or welding technology, and a bottom plate 2 is arranged between the frames 1. The bottom plate 2 is made of wear-resistant and corrosion-resistant high-strength composite materials or thickened steel plates. The frame 1 is an integrated structure consisting of a horizontal section 101 and a bending portion 102. The horizontal section 101 ensures the lateral stability of the chassis, and the bending portion 102 provides the chassis with the necessary elastic space to absorb ground impact and enhance adaptability to complex terrain. Reinforcements 3 are symmetrically connected between the two sides of the bottom plate 2 and the frame 1, and anti-shear strips 4 distributed in a "well" shape are arranged on the top of the bottom plate 2. 4 Effectively disperse and withstand the shear force during operation to prevent chassis deformation. This structure significantly improves the loose connection and twisting deformation problems of the traditional split chassis in complex terrain and high-intensity operations through the application of an integrated frame 1 and reinforced materials, greatly improving the shear resistance. Even under conditions of heavy soil and scattered stones, it can maintain transmission efficiency and protect key components from damage. The innovation of the integrated chassis not only significantly enhances the overall stability and durability of the micro-tillage machine, reduces the occurrence of failures and maintenance needs, but also improves operating efficiency and reduces maintenance costs, thereby bringing higher economic benefits to users. The four sides of the bottom plate 2 are provided with curved edges, and the lower surface of the bottom plate 2 is coated with a wear-resistant and anti-skid coating. This structure The curved edges around the bottom plate 2 not only enhance the impact resistance of the edge of the bottom plate 2, effectively preventing edge damage caused by collision during operation, but also reduce the risk of soil, stones and other foreign objects getting stuck by increasing the transition surface when in contact with the ground, thereby improving the overall protection performance of the chassis. The wear-resistant and anti-skid coating coated on the lower surface of the bottom plate 2 can be made of high-performance polymer materials to reduce direct friction with the ground, avoid scratches and enhance grip, ensure that the tiller can still maintain good control stability and passability when operating on wet or uneven ground, further extend the service life of the bottom plate 2 and optimize the operating efficiency. The corresponding positions of the connection between the reinforcement 3 and the bottom plate 2 are fitted, and the connection between the reinforcement 3 and the bottom plate 2 is symmetrically provided with bolt holes 301. In addition, the bottom plate 2 is provided with docking holes that match the bolt holes 301. The bolt holes 301 on the structural reinforcement 3 are accurately matched with the corresponding docking holes on the bottom plate 2, and high-strength bolts and nuts are used to complete precise docking through these holes to ensure that a stable and reliable connection is formed between the reinforcement 3 and the bottom plate 2 to resist continuous vibration and external corrosion during operation, and enhance the tightness and durability of the overall structure. This connection method not only strengthens the overall structure of the chassis, effectively improves the carrying capacity and stability of the four-wheel drive micro-tillage machine in the face of complex working environments, but also facilitates rapid on-site assembly and maintenance. The connection between the reinforcement 3 and the frame 1 is welded and fixed, and a nest-shaped reinforcement rib 302 is provided on the outer side of the connection between the reinforcement 3 and the frame 1.The connection between the reinforcement member 3 of this structure and the frame 1 is fixed by a high-quality welding process to ensure the strength and durability of the connection, and the specially arranged dimple-shaped reinforcement ribs 302 on the outside of the reinforcement member 3 are made of a high-strength alloy material consistent with the frame 1, which not only increases the local structural strength and effectively suppresses the stress concentration phenomenon that may be caused by external forces in the welding area, but also improves the effective utilization rate of materials and the torsional rigidity of the structure through its unique dimple-shaped structure, thereby enhancing the impact resistance and fatigue resistance of key connection parts of the chassis, especially when frequently encountering complex terrain and high-intensity operation challenges, it can effectively prevent the frame 1 from deformation and loose connection. A plurality of reinforcing ribs 5 are longitudinally welded and fixed to the lower surface of the bottom plate 2, and the reinforcing ribs 5 are in a flat structure. The bottom plate 2 of this structure is provided with a plurality of reinforcing ribs 5 on the lower surface. The reinforcing ribs 5 can be made of high-strength steel or lightweight aluminum alloy material, and are connected to the bottom plate 2. The main body materials match each other, which can further improve the overall rigidity and bending resistance of the chassis. In particular, the reinforcement ribs 5 are arranged along the longitudinal direction, which not only optimizes the load distribution of the bottom plate 2, effectively suppresses the bending or twisting of the bottom plate 2 caused by uneven ground when operating in complex terrain, but also strengthens the protection of the bottom of the transmission system to prevent damage caused by external impact. The bottom of the connection between the horizontal section 101 and the bending part 102 is welded and fixed with an anti-shear strip 6, and the curvature of the anti-shear strip 6 is consistent with the curvature of the connection between the horizontal section 101 and the bending part 102. The anti-shear strip 6 of this structure can effectively suppress the structural stress concentration during high-intensity operation or driving on complex terrain, and prevent cracking or fracture caused by excessive shear force at the connection, ensuring the overall structural integrity and power transmission efficiency of the four-wheel drive micro-tillage machine chassis under extreme conditions, thereby extending the service life of the equipment and reducing the maintenance frequency caused by structural damage.

[0018] Working principle: When using the high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine, firstly, two symmetrical frames 1 are formed by high-strength alloy materials through precision casting or welding technology. The frame 1 is composed of a horizontal section 101 and a bending part 102 to form an integrated structure to ensure lateral stability and elasticity. Then, wear-resistant and corrosion-resistant high-strength composite materials or thickened steel plates are used to make the bottom plate 2, and curved edges are designed on the edges of the bottom plate 2. The lower surface is coated with a wear-resistant and non-slip coating. Then, the bottom plate 2 is placed between the two frames 1 to ensure the precise docking of the horizontal section 101 and the bending part 102. The two sides of the bottom plate 2 are symmetrically connected to the frame 1 through reinforcements 3. The reinforcements 3 Bolt holes 301 are provided on it, which are precisely matched with the docking holes on the base plate 2. They are fixed by high-strength bolts and nuts to enhance the stability of the connection. The connection between the reinforcement 3 and the frame 1 is fixed by welding, and a recessed reinforcement rib 302 is added on the outside of the welding area to further enhance the local strength and torsion resistance. At the same time, a number of reinforcing ribs 5 are welded and fixed along the longitudinal direction on the lower surface of the base plate 2. They are distributed in a flat structure to enhance the rigidity and bending resistance of the chassis. Finally, an anti-shear strip 6 is welded and fixed at the bottom of the connection between the horizontal section 101 and the bending portion 102 of the frame 1. Its curvature matches the connection of the frame 1 to enhance the shear resistance, thereby completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength shear-resistant integrated chassis for a four-wheel drive micro-tillage machine, comprising a frame (1), wherein two frames (1) are symmetrically provided, and a bottom plate (2) is provided between the frames (1), characterized in that: The frame (1) is an integrated structure consisting of a horizontal section (101) and a bent portion (102); the horizontal section (101) ensures the lateral stability of the chassis, while the bent portion (102) provides the chassis with necessary elastic space to absorb ground impact; reinforcements (3) are symmetrically connected between the two sides of the bottom plate (2) and the frame (1), and the top of the bottom plate (2) is provided with anti-shear strips (4) distributed in a "well" shape.

2. The high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The four edges of the bottom plate (2) are provided with curved edges, and the lower surface of the bottom plate (2) is coated with a wear-resistant and anti-slip coating.

3. The high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The corresponding positions of the connection between the reinforcement member (3) and the base plate (2) are fitted together, and bolt holes (301) are symmetrically provided at the connection between the reinforcement member (3) and the base plate (2), and the base plate (2) is provided with docking holes that match the bolt holes (301).

4. The high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The connection between the reinforcing member (3) and the vehicle frame (1) is fixed by welding, and a recessed reinforcing rib (302) is provided on the outer side of the connection between the reinforcing member (3) and the vehicle frame (1).

5. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 1, characterized in that: A plurality of reinforcing ribs (5) are longitudinally arranged on the lower surface of the bottom plate (2), and the reinforcing ribs (5) are in the form of a flat plate.

6. The high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine according to claim 1, characterized in that: An anti-shear strip (6) is provided at the bottom of the connection between the horizontal section (101) and the bending portion (102), and the curvature of the anti-shear strip (6) matches the curvature of the connection between the horizontal section (101) and the bending portion (102).

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