Air suspension rubber bushing for automobile

Abstract

The utility model discloses an air suspension rubber bushing for an automobile, which belongs to the technical field of rubber bushings, and comprises a metal core and a shell arranged on the outer side of the metal core, a damping device is arranged between the shell and the metal core, and the damping device comprises an inner core and an outer core which are wrapped on the outer side of the metal core. A reinforcing block is arranged between the outer core and the inner core, a plurality of through holes are formed in the reinforcing block, the outer side of the outer core is fixedly wrapped with the shell, in the actual use process, a connecting piece penetrates through the metal core, then the connecting piece and the rubber bushing are installed at the designated position of an automobile, the inner core and the outer core interact with the reinforcing block, and the reinforcing block is fixedly connected with the shell. The rubber in the bushing is forced to be subjected to shearing, compression, stretching or torsional deformation, a part of mechanical energy is converted into heat energy to be dissipated in the deformation and recovery process of a rubber molecular chain, vibration and impact transmission can be restrained, the reinforcing blocks and the through holes in the reinforcing blocks can be amplified, and the high-frequency micro-vibration treatment capacity of the bushing is further enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of rubber bushing technology, specifically relating to a rubber bushing for automotive air suspension. Background Technology

[0002] Rubber bushings in an air suspension system are a key elastic connecting element. They are mainly installed between the connection points of various components of the air suspension system (such as control arms, linkages, shock absorber top mounts, stabilizer bar connections, etc.) and the vehicle body or subframe.

[0003] The core of an air suspension is the air spring (airbag), which is primarily responsible for bearing the weight of the vehicle and providing the main vertical elasticity. The rubber bushings used in the air suspension are responsible for handling high-frequency small vibrations that the air spring cannot fully absorb, as well as multi-directional micro-movements at the connection points. Traditional rubber bushings include a pin with an outer steel sleeve fitted onto it, and a washer between the pin and the outer steel sleeve. Traditional rubber bushings cannot effectively handle high-frequency micro-vibrations, but the air springs in the air suspension system struggle to handle them, placing extremely high demands on the suspension's high-frequency micro-vibration handling capabilities. Utility Model Content

[0004] The purpose of this utility model is to provide a rubber bushing for an automotive air suspension to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: it includes a metal core and a shell disposed on the outside of the metal core, and a shock-absorbing device is provided between the shell and the metal core;

[0005] The shock absorption device includes an inner core and an outer core wrapped around the outside of a metal core. A reinforcing block is provided between the outer core and the inner core. The reinforcing block has several through holes. The outer shell is fixedly wrapped around the outside of the outer core.

[0006] It should be noted in the solution that the outer shell is wrapped with an outer rubber pad.

[0007] It should be noted in the solution that the metal core has a protrusion in the middle part, the protrusion is drum-shaped, and the two ends of the metal core protrude from the inner core.

[0008] It should be noted in the design that the outer core has several heat dissipation holes.

[0009] It should be noted in the solution that the inner wall of the metal core is wrapped with a rubber pad.

[0010] Compared with the prior art, the automobile air suspension rubber bushing provided by this utility model has at least the following beneficial effects:

[0011] (1) By setting up the shock absorption device, in actual use, the connector passes through the metal core, and then the connector and rubber bushing are installed in the designated position of the car. During the car's operation, through the setting of the reinforcing block and the through hole on the reinforcing block, when the connected parts move relative to each other, the inner core and outer core interact with the reinforcing block, forcing the rubber inside the bushing to undergo shearing, compression, stretching or torsional deformation. During the deformation and recovery process, the rubber molecular chain converts some mechanical energy into heat energy and dissipates it, which helps to suppress the transmission of vibration and impact. The reinforcing block and the through hole on the reinforcing block can amplify this effect and further enhance the bushing's ability to handle high-frequency micro-vibrations.

[0012] (2) By setting the outer rubber pad, when in use, the outer rubber pad wraps around the outside of the shell, especially covering the end face of the shell, which physically blocks dust, mud, gravel and other pollutants from directly contacting and penetrating the working area of ​​the bushing, significantly extending the service life of the bushing, maintaining its stable performance, and reducing abnormal noise and premature failure caused by pollution. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the product of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the reinforcing block of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the metal core of the product of this utility model;

[0016] Figure 4 This is a side view sectional structural diagram of the product of this utility model.

[0017] In the diagram: 1. Metal core; 2. Rubber pad; 3. Inner core; 4. Outer shell; 5. Outer rubber pad; 6. Reinforcing block; 7. Through hole; 8. Heat dissipation hole; 9. Outer core; 101. Protrusion. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4A rubber bushing for an air suspension system for automobiles includes a metal core 1 and a housing 4 disposed outside the metal core 1. A shock-absorbing device is provided between the housing 4 and the metal core 1. The shock-absorbing device includes an inner core 3 and an outer core 9 wrapped around the outside of the metal core 1. A reinforcing block 6 is provided between the outer core 9 and the inner core 3. The reinforcing block 6 has several through holes 7. The housing 4 is fixedly wrapped around the outside of the outer core 9. The reinforcing block 6 is annular. Several equally spaced through holes 7 are also provided on the outer wall of the reinforcing block 6.

[0020] With the damping device in place, in actual use, the connector passes through the metal core 1, and then the connector and rubber bushing are installed in the designated position of the car. During the car's operation, through the reinforcement block 6 and the through hole 7 on the reinforcement block 6, when the connected parts move relative to each other, the inner core 3 and the outer core 9 interact with the reinforcement block 6, forcing the rubber inside the bushing to undergo shearing, compression, stretching, or torsional deformation. During the deformation and recovery process, the rubber molecular chains convert some of the mechanical energy into heat energy and dissipate it, which helps to suppress the transmission of vibration and impact. The reinforcement block 6 and the through hole 7 on the reinforcement block 6 can amplify this effect and further enhance the bushing's ability to handle high-frequency micro-vibrations.

[0021] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the outer shell 4 is wrapped with an outer rubber pad 5.

[0022] With the outer rubber pad 5 in place, during use, the outer rubber pad 5 wraps around the outside of the outer shell 4, especially covering the end face of the outer shell 4, physically preventing dust, mud, gravel and other contaminants from directly contacting and penetrating the working area of ​​the bushing, significantly extending the service life of the bushing, maintaining its stable performance, and reducing abnormal noise and premature failure caused by contamination.

[0023] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the metal core 1 has a protrusion 101 in the middle part, the protrusion 101 is drum-shaped, and the two ends of the metal core 1 protrude from the inner core 3.

[0024] With the protrusion 101, in actual use, the connector passes through the metal core 1. When the connected parts move relative to each other, the metal core 1 moves with the connected parts. The protrusion 101 can generate forces in different directions, which enhances the deformation of the rubber. During the deformation and recovery process, the rubber molecular chains convert some mechanical energy into heat energy and dissipate it, which helps to suppress the transmission of vibration and impact.

[0025] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the outer core 9 is provided with a number of heat dissipation holes 8;

[0026] By setting the heat dissipation holes 8, the bushing has heat dissipation holes 8. The opening structure increases the heat dissipation area, promotes heat dissipation, and allows the temperature inside the bushing to be dissipated better.

[0027] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the inner wall of the metal core 1 is wrapped with a rubber pad 2;

[0028] With the rubber pad 2 in place, during use, the rubber pad 2 wraps inside the metal core 1, especially covering the end face of the metal core 1, physically preventing dust, mud, gravel and other contaminants from directly contacting and intruding into the working area of ​​the bushing, significantly extending the service life of the bushing, maintaining its stable performance, and reducing abnormal noise and premature failure caused by contamination.

[0029] The present invention provides a rubber bushing for an air suspension system in automobiles. Specific preferred embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely for the purpose of helping to understand the principles and core ideas of the present invention. It should be noted that, for those skilled in the art, the implementation schemes in the above embodiments can be further combined or replaced without departing from the design concept of the present invention, and several improvements and modifications can be made to the present invention. These improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An air suspension rubber bushing for an automobile, comprising a metal core (1) and an outer shell (4) provided on the outside of the metal core (1), characterized in that: A damping device is arranged between the shell (4) and the metal core (1); The damping device comprises an inner core (3) and an outer core (9) wrapped outside the metal core (1), and a reinforcing block (6) is arranged between the outer core (9) and the inner core (3), a plurality of through holes (7) are formed in the reinforcing block (6), and the shell (4) is fixedly wrapped outside the outer core (9).

2. The rubber bushing for an air suspension of a vehicle according to claim 1, characterized in that: An outer layer rubber pad (5) is wrapped outside the shell (4).

3. The rubber bushing for an air suspension of a vehicle according to claim 2, characterized in that: A protruding block (101) is arranged at a middle position of the metal core (1), the protruding block (101) is drum-shaped, and both ends of the metal core (1) protrude out of the inner core (3).

4. The rubber bushing for an air suspension of a vehicle according to claim 3, characterized in that: A plurality of heat dissipation holes (8) are arranged on the outer core (9).

5. The rubber bushing for an air suspension of a vehicle according to claim 4, characterized in that: A rubber pad (2) is wrapped on the inner wall of the metal core (1).

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