Light-noise comfortable automobile control arm

Abstract

The utility model discloses a light-noise comfortable automobile control arm. The automobile control arm mainly solves the problem that a traditional automobile control arm is large in abnormal sound when an automobile vibrates. One end of the connecting shaft (4) is connected with the first joint, and the other end of the connecting shaft (4) is connected with the second joint; the first connector comprises an outer pipe (21) which is provided with an empty groove in the axial direction. The inner pipe (22) is arranged in the empty groove, and a vulcanized rubber layer (23) is arranged between the inner pipe and the outer pipe; at least part of the first plastic sleeve (24) is arranged in the inner pipe; the second plastic sleeve (25) is arranged on the circumferential outer wall of the connecting shaft extending into the inner pipe in a sleeving mode, and a gap exists between the second plastic sleeve and the first plastic sleeve. According to the light-noise comfortable automobile control arm, the first plastic casing pipe is arranged in the inner pipe, the second plastic casing pipe is arranged on the outer wall of the connecting shaft, plastic materials are matched with one another, and no abnormal sound is generated when the plastic materials make contact with one another.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a low-noise and comfortable automobile control arm. Background Art

[0002] The suspension system is an important part of the vehicle and is crucial to driving stability and handling stability. The control arm elastically connects the wheel to the vehicle body through a ball joint or bushing to support and control the movement of the vehicle.

[0003] The automobile control arm transmits various forces on the wheel to the body, and ensures that the wheel moves along a certain trajectory, which has a great impact on the handling stability and smoothness of the vehicle. At present, the automobile control arm bushing is usually composed of an inner tube, vulcanized rubber, and an outer tube. The inner tube is usually made of metal and bolts. The combination of metal and metal is easy to cause abnormal noise when the vehicle vibrates, thus affecting the comfort of the vehicle. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a low-noise and comfortable automobile control arm, which mainly solves the problem that the traditional automobile control arm has a large abnormal noise when the vehicle vibrates.

[0005] The technical solution adopted by the utility model is:

[0006] A low-noise and comfortable automobile control arm comprises an arm body, one end of the arm body is provided with a first joint, the other end of the arm body is provided with a second joint, and further comprises

[0007] A connecting shaft, one end of which is connected to the first joint, and the other end of which is connected to the second joint; the first joint includes

[0008] The outer tube is provided with a hollow groove in the axial direction;

[0009] An inner tube, disposed in the hollow groove and provided with a vulcanized rubber layer between the outer tube;

[0010] A first plastic sleeve, at least partially disposed inside the inner tube;

[0011] The second plastic sleeve is sleeved on the circumferential outer wall of the connecting shaft extending into the inner tube, and a gap exists between the second plastic sleeve and the first plastic sleeve.

[0012] The first plastic sleeve is made of POM.

[0013] The second plastic sleeve is made of POM.

[0014] The first plastic sleeve includes a first half sleeve, having a first flange, the first flange is arranged on the outer wall of one axial side of the outer tube, and the first flange is provided with a first connecting portion; the second half sleeve has a second flange, the second flange is arranged on the outer wall of the other axial side of the outer tube, the second flange is provided with a second connecting portion, and the second connecting portion is detachably connected to the first connecting portion.

[0015] A lubricating grease layer is provided between the first plastic sleeve and the inner tube.

[0016] A lubricating grease layer is provided between the connecting shaft and the second plastic sleeve.

[0017] The beneficial effects of the utility model are as follows: the utility model provides a low-noise and comfortable automobile control arm, wherein a first plastic sleeve is provided inside an inner tube, and a second plastic sleeve is provided on an outer wall of a connecting shaft, and plastic materials are matched with each other, and no abnormal sound is emitted when plastics contact with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model.

[0019] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0020] Figure 3 It is a partial cross-sectional schematic diagram of another embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings: As shown in the figure, a low-noise and comfortable automobile control arm includes an arm body 1, a first joint 2 is provided at one end of the arm body, a second joint 3 is provided at the other end, and a connecting shaft 4 is provided, one end of which is connected to the first joint and the other end is connected to the second joint; the first joint includes an outer tube 21, which is provided with an empty groove in the axial direction; an inner tube 22, which is provided in the empty groove and has a vulcanized rubber layer 23 between the outer tube; a first plastic sleeve 24, which is at least partially provided inside the inner tube; a second plastic sleeve 25, which is sleeved on the circumferential outer wall of the connecting shaft extending into the inner tube, and there is a gap between the second plastic sleeve. The two bushings are connected by a connecting shaft, which plays a reinforcing role of the reinforcing ribs, enhances the strength of the control arm, and increases the safety and reliability of the control arm. At the same time, the connecting shaft also improves the rigidity of the control arm, improves the anti-rolling ability of the vehicle when turning, and improves the driving stability of the vehicle. The end of the connecting shaft is provided with a detachable screw 40 for fixing after installation.

[0022] The first plastic sleeve is made of POM. POM (polyoxymethylene resin) POM material has good wear resistance and is not easy to wear during use. POM material has the characteristics of high strength and impact resistance, and can withstand various impacts during the driving of the car, which can ensure long-term use and improve the reliability of the product, which also plays a certain role in protecting the service life of the control arm.

[0023] The second plastic sleeve is made of POM.

[0024] In this embodiment, as shown in the figure, the first plastic sleeve includes a first half sleeve 241, having a first flange 2411, the first flange is arranged on the outer wall of one axial side of the outer tube, and the first flange is provided with a first connecting portion 2412; the second half sleeve 242, having a second flange 2421, the second flange is arranged on the outer wall of the other axial side of the outer tube, the second flange is provided with a second connecting portion 2422, and the second connecting portion is detachably connected to the first connecting portion.

[0025] In this embodiment, as shown in the figure, a grease layer is provided between the first plastic sleeve and the inner tube. With the addition of grease, the two plastic sleeves are clearance-fitted, and the POM material has a small friction coefficient, so the connecting shaft can rotate, which plays a certain compensation role when the car vibrates, and does not directly transmit the force to the control arm, and then to the cab, thereby improving the stability and comfort of the car's handling.

[0026] In this embodiment, as shown in the figure, a grease layer is provided between the connecting shaft and the second plastic sleeve.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A low-noise and comfortable automobile control arm, comprising an arm body (1), one end of the arm body being provided with a first joint (2), and the other end being provided with a second joint (3), characterized in that: It also includes a connecting shaft (4), one end of which is connected to the first joint, and the other end of which is connected to the second joint; The first connector includes The outer tube (21) is provided with a hollow groove in the axial direction; An inner tube (22) is disposed in the hollow groove and has a vulcanized rubber layer (23) between it and the outer tube; A first plastic sleeve (24), at least partially disposed inside the inner tube; The second plastic sleeve (25) is sleeved on the circumferential outer wall of the connecting shaft extending into the inner tube, and a gap exists between the second plastic sleeve and the first plastic sleeve.

2. The low-noise and comfortable automobile control arm according to claim 1, characterized in that: The first plastic sleeve is made of POM.

3. The low-noise and comfortable automobile control arm according to claim 1, characterized in that: The second plastic sleeve is made of POM.

4. The low-noise and comfortable automobile control arm according to claim 1, characterized in that: The first plastic sleeve comprises The first half sleeve (241) has a first flange (2411), the first flange is arranged on an outer wall of one axial side of the outer tube, and the first flange is provided with a first connecting portion (2412); The second half sleeve (242) has a second flange (2421), the second flange is arranged on the outer wall of the other axial side of the outer tube, the second flange is provided with a second connecting portion (2422), and the second connecting portion is detachably connected to the first connecting portion.

5. The low-noise and comfortable automobile control arm according to claim 4, characterized in that: A lubricating grease layer is provided between the first plastic sleeve and the inner tube.

6. The low-noise and comfortable automobile control arm according to claim 5, characterized in that: A lubricating grease layer is provided between the connecting shaft and the second plastic sleeve.

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