Control arm bushing

Abstract

The utility model provides a control arm bushing, which relates to the technical field of bushings, and comprises an outer pipe, an inner pipe sleeved on the outer wall of a control rod is arranged in the outer pipe, a rubber body playing a role in shock resistance and buffering is filled between the outer pipe and the inner pipe, when a vehicle runs, the control arm is impacted and vibrated by a road surface, and the control arm is prevented from falling off. The force is transmitted to the rubber body through the outer pipe, the rubber body effectively absorbs and buffers vibration energy and reduces transmission of vibration to a frame and a control arm by means of the honeycomb-shaped hollow structure and elasticity of the rubber body, meanwhile, the mounting flange is isolated from external pollutants through the sealing effect of the connecting end protecting sleeve, and the sealing effect of the connecting end protecting sleeve is improved. The rubber pad plays a role in buffering and damping at the connecting part, the influence of vibration on the connecting stability is further reduced, the nano ceramic protective coating protects the connecting part from corrosion and abrasion, and under the synergistic effect of the multiple protective assemblies, the protective performance of the bush is improved, and the service life of the bush is prolonged. And the stability of connection between the bushing and the control arm and between the bushing and the frame is enhanced, and the driving safety of the vehicle is ensured.

Description

Technical Field

[0001] This utility model relates to the field of bushing technology, and in particular to a control arm bushing. Background Technology

[0002] As a key component of the automotive suspension system, the control arm bushing's connection stability and protective performance are crucial to vehicle driving safety and the driving experience.

[0003] Existing control arm bushings have many shortcomings in terms of protective connections. On the one hand, the connection between the bushing and the control arm and the frame is easily corroded by external pollutants such as rainwater and mud, causing the connecting parts to rust and loosen, affecting the connection strength. On the other hand, during vehicle operation, the bushing is subjected to complex vibrations and impacts. The lack of effective protective measures exacerbates the wear between the bushing and the connecting parts, shortens the service life of the bushing and related connecting parts, and also increases the safety hazards during vehicle operation. Therefore, a new type of control arm bushing is needed. Utility Model Content

[0004] The purpose of this invention is to provide a control arm bushing that solves the problems of easy contamination and poor shock resistance leading to severe wear in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a control arm bushing, comprising an outer tube, an inner tube sleeved on the outer wall of the control arm inside the outer tube, a rubber body for shock absorption and cushioning filling the space between the outer tube and the inner tube, flanges for mounting the control arm and outwardly flanged at both ends of the outer tube, and protective sleeves for sealing and protecting the flanges at both ends of the outer tube.

[0006] Preferably, the inner wall of the outer tube has an annular groove that surrounds the axis of the outer tube.

[0007] Preferably, the outer wall of the inner tube has a threaded groove that surrounds the axis of the inner tube.

[0008] Preferably, the surface of the rubber body is uniformly distributed with a honeycomb-shaped perforated structure.

[0009] Preferably, the two end faces of the outer tube, the rubber body, and the inner tube are connected by connecting washers.

[0010] Preferably, the upper and lower end faces of the flange are provided with rubber pads that serve as a buffer.

[0011] Preferably, the protective sleeve has a bowl-shaped structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When the vehicle is in motion, the control arm is subjected to impacts and vibrations from the road surface. These forces are transmitted to the rubber body through the outer tube. The rubber body, with its honeycomb-like hollow structure and elasticity, effectively absorbs and buffers vibration energy, reducing the transmission of vibration to the frame and control arm. At the same time, the sealing effect of the protective sleeve at the connection end isolates the mounting flange from external contaminants. The rubber pad at the connection point acts as a buffer and shock absorber, further reducing the impact of vibration on connection stability. The nano-ceramic protective coating protects the connection points from corrosion and wear. With the synergistic effect of multiple protective components, not only is the protective performance of the bushing improved, but the connection stability between the bushing and the control arm and frame is also enhanced, ensuring vehicle driving safety. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of the product of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall front view of the product of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the outer tube, rubber body, and inner tube of the present invention.

[0017] Figure 4 This is a schematic diagram of the inner tube structure of the product of this utility model;

[0018] Figure 5 This is a schematic diagram of the outer tube structure of the product of this utility model.

[0019] In the diagram: 1. Outer tube; 2. Rubber body; 3. Inner tube; 4. Flange; 5. Protective sleeve; 6. Rubber gasket; 7. Connecting gasket; 8. Threaded groove; 9. Annular groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model relates to a control arm bushing, such as Figure 1-5As shown, the device includes an outer tube 1, an inner tube 3 on the inner wall of the outer tube 1, and the inner tube 3 is connected to the control arm. A rubber body 2 is filled between the outer tube 1 and the inner tube 3. The outer surface of the inner tube 3 is machined with a threaded groove 8 with a recess depth of 0.8-1.2 mm and a pitch of 3-4 mm to increase the contact area and friction with the rubber body 2 and ensure a firm connection. The surface of the rubber body 2 is uniformly distributed with a honeycomb structure, which ensures the elasticity of the rubber body while enhancing its shock absorption performance.

[0022] Furthermore, the upper and lower ends of the outer tube 1 are provided with flanges 4 that turn outward, which can fix the bushing and the control arm. The outer wall of the outer tube 1 is covered with a protective sleeve 5. There are two sets of protective sleeves 5, which are symmetrically distributed about the outer tube 1. The protective sleeve 5 has a bowl-shaped structure. The protective sleeve 5 covers the flange 4 while being fitted on the outer wall of the outer tube 1, which can protect the connection part and prevent the connection part from being contaminated.

[0023] Furthermore, a rubber gasket 6 is fixedly connected to the end face of flange 4. The upper surface of 6 is provided with a groove. The rubber gasket 6 is made of polyurethane elastomer material, which can play a buffering role during connection, reduce the impact of vibration and impact on the connection part, and increase the friction of the connection surface to prevent the bushing from shifting during operation.

[0024] Furthermore, connecting washers 7 are installed on both ends of the outer tube 1, rubber body 2 and inner tube 3. The connecting washers 7 connect the outer tube 1, rubber body 2 and inner tube 3 together, increasing the firmness of the connection. At the same time, the inner wall of the outer tube 1 is provided with an annular groove 9 around the center. There are three sets of annular grooves 9, which are equidistantly distributed on the inner wall of the outer tube 1. The outer wall of the inner tube 3 is provided with a threaded groove 8 around the center.

[0025] Furthermore, a nano-ceramic protective coating is sprayed onto the connection points between the inner tube 3 and the control arm, and between the outer tube 1 and the frame. The coating thickness is 0.05-0.1mm, which has excellent wear resistance and corrosion resistance. The coating can form a dense protective film at the connection points, effectively isolating the external environment from erosion of the connecting parts, while reducing the coefficient of friction between the connecting parts and reducing wear.

[0026] In practical use: When the vehicle is in motion, the control arm is subjected to impacts and vibrations from the road surface. These forces are transmitted to the rubber body 2 through the outer tube 1. The rubber body 2, with its honeycomb-like hollow structure and elasticity, effectively absorbs and buffers vibration energy, reducing the transmission of vibration to the frame and control arm. At the same time, the sealing effect of the protective sleeve at the connection end isolates the mounting flange 4 from external contaminants. The rubber pad 6 plays a buffering and shock-absorbing role at the connection point, further reducing the impact of vibration on connection stability. The nano-ceramic protective coating protects the connection point from corrosion and wear. With the synergistic effect of multiple protective components, not only is the protective performance of the bushing improved, but the connection stability between the bushing and the control arm and frame is also enhanced, ensuring vehicle driving safety.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A control arm bushing, comprising an outer tube (1), characterized in that: The outer tube (1) is provided with an inner tube (3) sleeved on the outer wall of the control rod. The space between the outer tube (1) and the inner tube (3) is filled with a rubber body (2) that acts as a shock absorber. The two ends of the outer tube (1) are provided with flanges (4) that are connected to the control arm and are turned outward. The two ends of the outer tube (1) are provided with protective sleeves (5) that wrap around the flanges (4) to provide protection and sealing.

2. The control arm bushing according to claim 1, characterized in that: The inner wall of the outer tube (1) is provided with an annular groove (9) that surrounds the axis of the outer tube (1).

3. The control arm bushing according to claim 1, characterized in that: The outer wall of the inner tube (3) is provided with a threaded groove (8) that surrounds the axis of the inner tube (3).

4. The control arm bushing according to claim 1, characterized in that: The surface of the rubber body (2) is uniformly distributed with a honeycomb-shaped hollow structure.

5. The control arm bushing according to claim 1, characterized in that: The two ends of the outer tube (1), rubber body (2) and inner tube (3) are connected by connecting washers (7).

6. The control arm bushing according to claim 1, characterized in that: The upper and lower end faces of the flange (4) are provided with rubber pads (6) that serve as buffers.

7. The control arm bushing according to claim 1, characterized in that: The protective sleeve (5) has a bowl-shaped structure.

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