High-strength composite type automobile shock absorber

Abstract

The utility model belongs to the technical field of shock absorbers, and particularly discloses a high-strength composite type automobile shock absorber which comprises two mounting seats, fixing rings are arranged at the opposite ends of the two mounting seats, and a damping rubber sleeve is arranged between the two mounting seats. The number of the elastic layers is two, the elastic layers are located at the two ends of the damping rubber sleeve respectively, and the elastic layers are made of high-density sponge materials; the two ends of the damping rubber sleeve are connected with the two elastic layers through glue in a bonding mode, the elastic layers are used for providing a certain elastic range for the damping rubber sleeve, the opposite ends of the two elastic layers are each provided with a clamping ring, and the two ends of each elastic layer are each provided with a clamping groove. Gap increase caused by thermal expansion difference between the damping rubber sleeve and a connected component can be compensated, and the damping effect is maintained. At low temperature, frictional wear between the damping rubber sleeve and the mounting seat can be buffered, the friction coefficient is reduced, and the service life of the shock absorber is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of shock absorbers, and more specifically, to a high-strength composite automobile shock absorber. Background Art

[0002] With the rapid development of the automotive industry, people's demands for vehicle comfort, safety, and handling are becoming increasingly stringent. As a crucial component of the vehicle's suspension system, the performance of automotive shock absorbers directly impacts the vehicle's ride quality. Traditional automotive shock absorbers typically utilize a single damping material and structure, such as hydraulic or mechanical shock absorbers. However, these single-structure shock absorbers have limitations in practical applications. In recent years, composite automotive shock absorbers have gained increasing attention to better meet the shock absorption requirements of vehicles under varying driving conditions. Composite automotive shock absorbers combine multiple damping materials and technologies, aiming to leverage the properties of different materials to enhance shock absorber performance.

[0003] The damping spring composite shock absorber with announcement number CN207333543U combines spring shock absorption and damping shock absorption to simultaneously absorb the pressure received. The spring and damping rubber jointly absorb the shock, thereby improving the shock absorption effect. In addition, the damping effect also has a noise reduction effect. Compared with the single spring shock absorption, not only the shock absorption effect is improved, but also the damage to the spring is effectively reduced.

[0004] Although this patent uses springs and damping rubber to achieve shock absorption, the damping rubber may soften in a high temperature environment, which may cause the gap between it and the connected parts to increase, thereby affecting the shock absorption effect; in a low temperature environment, the rubber may harden, which will increase the friction and wear between the connected parts and also affect its damping characteristics. Utility Model Content

[0005] In order to solve the above problems, the present application provides a high-strength composite automobile shock absorber.

[0006] The high-strength composite automobile shock absorber provided in this application adopts the following technical solutions:

[0007] A high-strength composite automobile shock absorber includes two mounting seats, two mounting seats are provided with fixing rings at opposite ends of the two mounting seats, and a damping rubber sleeve is provided between the two mounting seats;

[0008] Elastic layer: the number of elastic layers is set to two, located at both ends of the damping rubber sleeve respectively, and the elastic layer is made of high-density sponge material;

[0009] The two ends of the damping rubber sleeve are connected to the two elastic layers by adhesive bonding, and the elastic layers are used to provide a certain elastic range for the damping rubber sleeve.

[0010] Through the above technical solution, the elastic layer can compensate for the increase in the gap between the damping rubber sleeve and the connected components due to the difference in thermal expansion at high temperatures, thereby maintaining the shock absorption effect; at low temperatures, it can buffer the friction and wear between the damping rubber sleeve and the mounting seat, reduce the friction coefficient, and extend the service life of the shock absorber.

[0011] Furthermore, a clamping ring is provided at one end of the two elastic layers facing each other, and a clamping groove is provided at both ends of the elastic layer.

[0012] Through the above technical solution, when the clamping ring is clamped with the clamping groove, the glue-coated parts contact each other, and the glue acts as a bond between the two, further enhancing the stability of the connection.

[0013] Furthermore, the two clamping grooves are respectively clamped with corresponding clamping rings, and the clamping rings and the clamping grooves are used for docking the damping rubber sleeve and the elastic layer after gluing.

[0014] Furthermore, a fixing plate is provided at the opposite end of the two elastic layers, and the two fixing plates are connected to the corresponding mounting seats through bolts.

[0015] Furthermore, a shock absorber body is provided between the two mounting seats, and a shock absorbing spring is provided on the outer wall of the shock absorber body.

[0016] Through the above technical solution, the shock absorber body is located between the two mounting seats, and the shock absorbing spring sleeve is arranged on the outer wall of the shock absorber body. When the car is subjected to the impact force generated by road bumps, the impact force is first transmitted to the mounting seat, and then transmitted to the damping rubber sleeve, the shock absorber body and the shock absorbing spring, thereby realizing composite shock absorption.

[0017] Furthermore, a plurality of ventilation holes are provided at both ends of the damping rubber sleeve, and a filter is provided inside each ventilation hole, and the filter is made of a flexible material.

[0018] Through the above technical solution, the ventilation holes opened at both ends can allow air to circulate between the cavity inside the damping rubber sleeve and the external environment, thereby taking away heat.

[0019] Furthermore, a cavity is provided inside the damping rubber sleeve, a heat-insulating layer is provided inside the cavity, a reinforcement layer is provided outside the heat-insulating layer, and the reinforcement layer is woven from glass fibers.

[0020] Through the above technical solution, in a low temperature environment, the insulation layer can reduce the heat loss inside the damping rubber sleeve, preventing the damping rubber sleeve from becoming hard and brittle due to excessively low temperature, thereby affecting the shock absorption effect.

[0021] Furthermore, a heat insulation layer is provided inside the damping rubber sleeve.

[0022] Through the above technical solution, a heat-insulating layer can also be provided in the cavity inside the damping rubber sleeve. When the car is driving in a high-temperature environment or is affected by an external heat source, the heat-insulating layer can prevent the external high-temperature heat from being quickly transferred to the damping rubber sleeve, thereby preventing the damping rubber sleeve from becoming soft and its performance from degrading due to excessive temperature.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] (1) The utility model can compensate for the increase in the gap between the damping rubber sleeve and the connected components due to the difference in thermal expansion at high temperatures by setting the elastic layer, thereby maintaining the shock absorption effect; at low temperatures, it can buffer the friction and wear between the damping rubber sleeve and the mounting seat, reduce the friction coefficient, and extend the service life of the shock absorber;

[0025] (2) The ventilation holes at both ends of the utility model allow air to circulate between the cavity inside the damping rubber sleeve and the external environment, thereby taking away heat, and the filter mesh made of flexible material inside the ventilation holes can effectively block dust and impurities without hindering air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the connection structure between the shock absorber body and the shock absorbing spring of the utility model;

[0028] Figure 3 This is a schematic diagram of the connection structure between the clamping ring and the clamping groove of the utility model;

[0029] Figure 4 It is a partial plan view of the utility model;

[0030] Figure 5 This is a schematic diagram of the connection structure between the reinforcement layer and the insulation layer of the utility model.

[0031] Explanation of the accompanying drawings: 1. Mounting seat; 2. Damping rubber sleeve; 3. Elastic layer; 4. Fixing plate; 5. Fixing ring; 6. Shock absorber body; 7. Shock-absorbing spring; 8. Reinforcement layer; 9. Filter screen; 10. Ventilation hole; 11. Insulation layer; 12. Snap ring; 13. Snap groove; 14. Insulation layer. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] Example 1

[0034] Reference Figure 1-Figure 5 , a high-strength composite automobile shock absorber, comprising a mounting seat 1, the number of the mounting seats 1 is set to two, the two mounting seats 1 are provided with a fixing ring 5 at opposite ends, and a damping rubber sleeve 2 is provided between the two mounting seats 1;

[0035] Elastic layer 3, the number of elastic layers 3 is set to two, respectively located at the two ends of the damping rubber sleeve 2, the elastic layer 3 is made of high-density sponge material;

[0036] The two ends of the damping rubber sleeve 2 are connected to the two elastic layers 3 by adhesive bonding. The elastic layers 3 are used to provide a certain elastic range for the damping rubber sleeve 2 .

[0037] When a car vibrates due to road bumps, the vibration energy is first transferred to mounting base 1. Mounting base 1 transmits the vibration to damping rubber sleeve 2 and elastic layer 3. Damping rubber sleeve 2 uses its own damping properties to convert the vibration energy into heat energy and dissipate part of it, while also absorbing and cushioning the vibration through its own deformation.

[0038] The cross-section of the elastic layer 3 and the damping rubber sleeve 2 is annular and is arranged on the outside of the shock absorber body 6 and the shock absorbing spring 7. The two mounting seats 1 are supported by the shock absorber body 6 and the shock absorbing spring 7, while the elastic layer 3 and the damping rubber sleeve 2 only realize composite shock absorption.

[0039] The elastic layer 3 is made of a high-density sponge material with a certain degree of elasticity. During vibration, the elastic layer 3 can further absorb and buffer vibration energy, providing additional elastic range for the damping rubber sleeve 2. When the damping rubber sleeve 2 is deformed by pressure, the elastic layer 3 will compress or stretch accordingly, helping the damping rubber sleeve 2 better adapt to changes in vibration.

[0040] At high temperatures, the damping rubber sleeve 2 becomes soft, which may cause the gap with the connected components to increase (when the ambient temperature rises, the damping rubber sleeve 2 will expand significantly due to the temperature increase. However, the mounting base 1 has a small thermal expansion coefficient and the expansion degree is relatively small. This will cause the gap between the damping rubber sleeve 2 and the mounting base 1, which were originally tightly fitted, to increase). However, the presence of the elastic layer 3 can compensate for this gap change to a certain extent, avoiding affecting the shock absorption effect.

[0041] At low temperatures, the damping rubber sleeve 2 becomes hard, which increases the friction and wear between the mounting base 1, while the elastic layer 3 can act as a buffer, reducing the direct contact and friction between the damping rubber sleeve 2 and the mounting base 1. The soft material of the elastic layer 3 can absorb part of the friction force, reduce the friction coefficient, and thus reduce the occurrence of wear.

[0042] Reference Figure 2-Figure 3 A snap ring 12 is provided at one end of the two elastic layers 3 facing each other, and a snap groove 13 is provided at both ends of the elastic layer 3. The two snap grooves 13 are respectively snapped with the corresponding snap rings 12. The snap rings 12 and the snap grooves 13 are used for docking the damping rubber sleeve 2 and the elastic layer 3 after gluing.

[0043] First, after the damping rubber sleeve 2 and the elastic layer 3 are glued, the two are connected by the mutual engagement of the snap ring 12 and the snap groove 13. The snap ring 12 is inserted into the corresponding snap groove 13 to form a mechanical connection structure.

[0044] When the clamping ring 12 is clamped with the clamping groove 13, the glue-coated parts contact each other, and the glue acts as a bond between the two, further enhancing the stability of the connection.

[0045] Reference Figure 1-Figure 2 A fixing plate 4 is provided at the opposite end of the two elastic layers 3. The two fixing plates 4 are connected to the corresponding mounting seats 1 by bolts. A shock absorber body 6 is provided between the two mounting seats 1. The outer wall of the shock absorber body 6 is provided with a shock-absorbing spring 7.

[0046] The shock absorber body 6 is located between the two mounting seats 1, and the shock absorbing spring 7 is mounted on the outer wall of the shock absorber body 6. When the car is subjected to the impact force generated by road bumps, the impact force is first transmitted to the mounting seat 1, and then transmitted to the damping rubber sleeve 2, the shock absorber body 6 and the shock absorbing spring 7, thereby realizing composite shock absorption.

[0047] Reference Figure 3 A plurality of ventilation holes 10 are provided at both ends of the damping rubber sleeve 2, and a filter screen 9 is provided inside each ventilation hole 10. The filter screen 9 is made of a flexible material. A cavity is provided inside the damping rubber sleeve 2, and an insulation layer 14 is provided inside the cavity. A reinforcement layer 8 is provided on the outside of the insulation layer 14, and the reinforcement layer 8 is woven from glass fiber.

[0048] During operation, the shock absorber generates heat. Ventilation holes 10 at both ends allow air to circulate between the cavity inside the damping rubber sleeve 2 and the external environment, removing heat and providing cooling. To prevent dust and impurities from entering the damping rubber sleeve 2 through the vents 10, a flexible filter 9 is installed within each vent 10. This flexible filter 9 effectively blocks dust and impurities without obstructing air circulation.

[0049] In a low temperature environment, the heat insulation layer 14 can reduce the heat loss inside the damping rubber sleeve 2, preventing the damping rubber sleeve 2 from becoming hard and brittle due to excessively low temperature, thereby affecting the shock absorption effect.

[0050] The reinforcing layer 8 is woven from glass fibers and has high strength and toughness. Due to the weaving process, gaps will be generated between the glass fiber materials. These gaps can allow the damping rubber sleeve 2 to undergo a certain degree of elastic deformation when subjected to force. When the damping rubber sleeve 2 is subjected to external force, the glass fibers can be stretched and compressed to a certain extent in these gaps without being excessively restricted by the reinforcing layer 8, thereby enhancing the structural strength of the damping rubber sleeve 2 without affecting its elasticity.

[0051] Example 2

[0052] Reference Figure 4 A heat insulation layer 11 is provided inside the damping rubber sleeve 2.

[0053] The cavity inside the damping rubber sleeve 2 can also be provided with an insulation layer 11. When the car is driving in a high-temperature environment or is affected by an external heat source, the insulation layer 11 can prevent the external high-temperature heat from being quickly transferred to the damping rubber sleeve 2, thereby preventing the damping rubber sleeve 2 from becoming soft and its performance from degrading due to excessive temperature.

[0054] The thermal insulation layer 11 generally has a certain thermal resistance, but is not absolutely thermally insulating, and a small amount of heat will still slowly dissipate outward through conduction, radiation, etc. On the other hand, the ventilation holes 10 provided at both ends of the damping rubber sleeve 2 can also promote the exchange of internal heat with the external air to a certain extent, thereby helping to dissipate internal heat.

[0055] Working Principle: When a car vibrates due to road bumps, the vibration energy is first transmitted to the mounting base 1, then to the damping rubber sleeve 2, the shock absorber body 6, and the shock-absorbing spring 7, achieving composite shock absorption. The elastic layer 3, made of a high-density sponge material with a certain degree of elasticity, further absorbs and buffers vibration energy, providing additional elastic range for the damping rubber sleeve 2. When the damping rubber sleeve 2 deforms under pressure, the elastic layer 3 compresses or expands accordingly, helping it better adapt to the vibration changes.

[0056] In the case of temperature changes, at high temperatures, the damping rubber sleeve 2 will expand significantly due to the temperature increase, while the mounting base 1 has a small thermal expansion coefficient and a relatively small degree of expansion, which may cause the gap between the damping rubber sleeve 2 and the mounting base 1 to increase, but the elastic layer 3 can compensate for this gap change to a certain extent to avoid affecting the shock absorption effect. At low temperatures, the damping rubber sleeve 2 becomes hard and increases the friction and wear between the mounting base 1. At this time, the elastic layer 3 plays a buffering role, reducing the direct contact and friction between the damping rubber sleeve 2 and the mounting base 1. Its soft material can absorb part of the friction force, reduce the friction coefficient, and reduce the occurrence of wear.

[0057] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. High-strength composite automobile shock absorber, characterized in that: include: A mounting seat (1), wherein the number of the mounting seats (1) is set to two, a fixing ring (5) is provided at opposite ends of the two mounting seats (1), and a damping rubber sleeve (2) is provided between the two mounting seats (1); Elastic layers (3), the number of the elastic layers (3) is set to two, respectively located at the two ends of the damping rubber sleeve (2), and the elastic layers (3) are made of a high-density sponge material; The two ends of the damping rubber sleeve (2) are connected to the two elastic layers (3) by adhesive bonding, and the elastic layers (3) are used to provide a certain elastic range for the damping rubber sleeve (2).

2. The high-strength composite automobile shock absorber according to claim 1, characterized in that: A snap ring (12) is provided at one end of each of the two elastic layers (3) facing each other, and a snap groove (13) is provided at both ends of each of the elastic layers (3).

3. The high-strength composite automobile shock absorber according to claim 2, characterized in that: The two clamping grooves (13) are respectively clamped with corresponding clamping rings (12), and the clamping rings (12) and the clamping grooves (13) are used for butting the damping rubber sleeve (2) and the elastic layer (3) after gluing.

4. The high-strength composite automobile shock absorber according to claim 1, characterized in that: A fixing plate (4) is provided at opposite ends of the two elastic layers (3), and the two fixing plates (4) are connected to the corresponding mounting seats (1) via bolts.

5. The high-strength composite automobile shock absorber according to claim 1, characterized in that: A shock absorber body (6) is provided between the two mounting seats (1), and a shock absorbing spring (7) is provided on the outer wall of the shock absorber body (6).

6. The high-strength composite automobile shock absorber according to claim 1, characterized in that: A plurality of ventilation holes (10) are provided at both ends of the damping rubber sleeve (2), and a filter screen (9) is provided inside each ventilation hole (10), and the filter screen (9) is made of a flexible material.

7. The high-strength composite automobile shock absorber according to claim 1, characterized in that: A cavity is provided inside the damping rubber sleeve (2), a heat-insulating layer (14) is provided inside the cavity, a reinforcement layer (8) is provided outside the heat-insulating layer (14), and the reinforcement layer (8) is woven from glass fibers.

8. The high-strength composite automobile shock absorber according to claim 1, characterized in that: A heat insulation layer (11) is provided inside the damping rubber sleeve (2).

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