Vulcanization combined structure shock absorber buffer block

Abstract

The utility model discloses a shock absorber buffer block with a vulcanization combined structure, which belongs to the technical field of shock absorbers and comprises a spring plate and a rubber buffer block, the spring plate is positioned above the rubber buffer block, the spring plate and the rubber buffer block are integrally formed, a plurality of exhaust holes are arranged on the rubber buffer block, and the exhaust holes are communicated with the spring plate. The shock absorber comprises a spring disc, a rubber buffer block is arranged on the spring disc, a first cavity is formed in the rubber buffer block, a polyurethane buffer block is installed in the first cavity, and the polyurethane buffer block and the spring disc form a vulcanization combined structure through the rubber buffer block. The buffering effect in the comfort stage of a vehicle is achieved through the soft polyurethane buffering block, the limiting effect of large impact and large compression is mainly achieved through the vulcanized rubber buffering block, air flowing is accelerated through exhaust holes formed in the side face of the rubber buffering block, and cooling in the structure is achieved; meanwhile, the problem that the polyurethane is broken and damaged too early is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of vibration damper technology, specifically a vulcanized composite structure vibration damper buffer block. Background Technology

[0002] The shock absorber buffer structure consists of: spring disc, spring pad, polyurethane buffer block, piston rod, and upper seal. The main function of the shock absorber buffer structure is that during the up and down movement of the shock absorber, the upper seal moves upward and comes into contact with the polyurethane buffer block. The buffer block resists compression deformation and generates a downward thrust, which slows down the upward movement of the shock absorber until it completely restricts the upward movement of the shock absorber.

[0003] Shock absorber buffer structures rely on deformation to absorb the energy of the shock absorber's upward movement and limit its movement through deformation. Generally, to ensure vehicle ride comfort, polyurethane buffer blocks are designed to be relatively soft. However, this leads to two drawbacks: Firstly, because polyurethane buffer blocks are relatively soft, they cannot effectively limit the upward movement of the shock absorber, causing it to bottom out, break down, and fail. Secondly, because polyurethane buffer blocks are relatively soft, they are prone to damage during early use, such as cracking, breaking, or shattering.

[0004] Therefore, it is necessary to solve the problem of balancing the comfort requirements and strength requirements of the shock absorber buffer structure during use. To this end, a vulcanized composite structure shock absorber buffer block is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a vulcanized composite structure vibration damper buffer block to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vulcanized composite structure vibration damper buffer block, comprising a spring disc and a rubber buffer block, wherein the spring disc is located above the rubber buffer block, the spring disc and the rubber buffer block are integrally formed, the rubber buffer block is provided with multiple vent holes, and a cavity is provided inside the rubber buffer block, wherein a polyurethane buffer block is installed inside the cavity.

[0007] The polyurethane buffer block is formed by a vulcanized combination structure of a rubber buffer block and a spring disc.

[0008] As a further preferred embodiment of this technical solution: the rubber buffer block serves as a limiting element, while the polyurethane buffer block ensures vehicle comfort. At the same time, the exhaust vents are used for exhaust and heat dissipation.

[0009] As a further preferred embodiment of this technical solution: a through hole is provided in the middle of the spring disc, and the through hole is connected to the cavity. The above arrangement facilitates the installation of the polyurethane buffer block.

[0010] As a further preferred embodiment of this technical solution: the spring disc is made of metal, and the spring disc made of metal is easy to vulcanize with rubber.

[0011] As a further preferred embodiment of this technical solution: the polyurethane buffer block has a second cavity, and the through hole is connected to the second cavity, which facilitates the installation of the piston rod.

[0012] As a further preferred embodiment of this technical solution: a piston rod passes through the cavity 2, the top of the piston rod passes through the through hole, the polyurethane buffer block is interference-fitted with the piston rod, and the spring disc and the rubber buffer block are vulcanized together and then loosely fitted with the piston rod.

[0013] As a further preferred embodiment of this technical solution: the bottom of the piston rod has an upper seal, and the soft deformation of the polyurethane can provide comfort for the vehicle. During large-stroke compression, the rubber buffer block contacts the upper seal, and through the deformation of the rubber, it provides a large deformation force, thereby limiting the movement while protecting the polyurethane buffer block, thus achieving the dual effect of vehicle comfort and shock absorber limiting.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Compared with the traditional structure that uses a single polyurethane buffer block, this invention provides a different shock absorber. During vehicle comfort, the buffering effect is achieved by the soft polyurethane buffer block, while the limiting effect under large impacts and compressions is mainly achieved by the vulcanized rubber buffer block. The airflow is accelerated through the exhaust holes on the side of the rubber buffer block, which cools the internal structure and also prevents the polyurethane from cracking and being damaged prematurely. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a vulcanized composite structure vibration damper buffer block according to the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a vulcanized composite structure vibration damper buffer block according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the spring disc and the rubber buffer block in the buffer block of a vulcanized composite structure vibration damper according to this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the spring disc and rubber buffer block in the buffer block of a vulcanized composite structure vibration damper according to this utility model.

[0020] Figure 5This is a schematic diagram of the polyurethane buffer block in a vulcanized composite structure vibration damper according to the present invention.

[0021] Figure 6 This is a cross-sectional structural diagram of the polyurethane buffer block in the damping block of a vulcanized composite structure vibration damper according to this utility model.

[0022] In the diagram: 1. Piston rod; 2. Spring disc; 21. Through hole; 3. Rubber buffer block; 31. Cavity 1; 4. Polyurethane buffer block; 41. Cavity 2; 5. Top seal; 6. Vent hole. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example 1

[0025] Please see Figures 1-6 This utility model provides a technical solution: a vulcanized combined structure vibration damper buffer block, including a spring disc 2 and a rubber buffer block 3. The spring disc 2 is located above the rubber buffer block 3. The spring disc 2 and the rubber buffer block 3 are integrally formed. The rubber buffer block 3 is provided with multiple exhaust holes 6. A cavity 31 is provided inside the rubber buffer block 3. A polyurethane buffer block 4 is installed in the cavity 31.

[0026] Among them, the polyurethane buffer block 4 forms a vulcanized combination structure with the rubber buffer block 3 and the spring disc 2.

[0027] In this embodiment, specifically: the spring disc 2 and the rubber buffer block 3 are vulcanized together. The rubber buffer block 3 utilizes the strong resistance to deformation of the rubber material to play a limiting role. The polyurethane buffer block 4 can be designed to be relatively soft according to the comfort requirements of the vehicle to ensure the comfort of the vehicle. At the same time, the vulcanized rubber buffer block 3 plays a limiting role, so there is no need to worry about the premature damage of the polyurethane buffer block 4.

[0028] In this embodiment, specifically, the diameter of the exhaust port 6 is 5mm. The exhaust port 6 is opened to prevent abnormal noise during compression, while accelerating gas flow and facilitating heat dissipation.

[0029] In this embodiment, specifically: a through hole 21 is provided in the middle of the spring disc 2, and the through hole 21 is connected to the cavity 31. The above arrangement facilitates the installation of the polyurethane buffer block 4.

[0030] In this embodiment, specifically: a cavity 41 is provided inside the polyurethane buffer block 4, and the through hole 21 is connected to the cavity 41. The above arrangement facilitates the installation of the piston rod 1.

[0031] Example 2

[0032] A vulcanized composite structure shock absorber buffer block, wherein the spring disc 2 is made of metal material, and the spring disc 2 made of metal material is used to achieve vulcanization molding with rubber material.

[0033] In this embodiment, specifically: a piston rod 1 passes through the cavity 41, the top of the piston rod 1 passes through the through hole 21, the polyurethane buffer block 4 is interference-fitted with the piston rod 1, and the spring plate 2 and the rubber buffer block 3 are vulcanized together and then loosely fitted with the piston rod 1.

[0034] In this embodiment, specifically: the bottom of the piston rod 1 has an upper seal 5. As the shock absorber is compressed, the polyurethane buffer block 4 first contacts the upper seal 5. Through the soft deformation of the polyurethane, it provides comfort for the vehicle. During large-stroke compression, the rubber buffer block 3 also contacts the upper seal 5. Through the deformation of the rubber, it provides a larger deformation force, thereby limiting the movement and protecting the polyurethane buffer block 4, so as to achieve the dual effect of vehicle comfort and shock absorber limiting.

[0035] Working principle: As the shock absorber is compressed, the polyurethane buffer block 4 first contacts the upper seal 5. Through the soft deformation of polyurethane, it provides comfort for the vehicle. During large-stroke compression, the rubber buffer block 3 also contacts the upper seal 5. Through the strong resistance to deformation of the rubber material itself, it provides a large deformation force, thereby limiting the rubber buffer block 3 and protecting the polyurethane buffer block 4. This achieves the dual effect of vehicle comfort and shock absorber limiting.

[0036] 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 vulcanized composite structure vibration damper buffer block, comprising a spring disc (2) and a rubber buffer block (3), wherein the spring disc (2) is located above the rubber buffer block (3), characterized in that: The spring disc (2) and the rubber buffer block (3) are integrally formed. The rubber buffer block (3) has multiple vent holes (6) and a cavity (31) is formed inside the rubber buffer block (3). A polyurethane buffer block (4) is installed inside the cavity (31). The polyurethane buffer block (4) is formed by the rubber buffer block (3) and the spring disc (2) to form a vulcanized composite structure.

2. The vulcanized composite structure vibration damper buffer block according to claim 1, characterized in that: The spring disc (2) has a through hole (21) in the middle, and the through hole (21) is connected to the cavity (31).

3. The vulcanized composite structure vibration damper buffer block according to claim 2, characterized in that: The spring disc (2) is made of metal.

4. The vulcanized composite structure vibration damper buffer block according to claim 2, characterized in that: The polyurethane buffer block (4) has a cavity two (41) inside, and the through hole (21) is connected to the cavity two (41).

5. The vulcanized composite structure vibration damper buffer block according to claim 4, characterized in that: A piston rod (1) passes through the cavity 2 (41), and the top of the piston rod (1) passes through the through hole (21).

6. The vulcanized composite structure vibration damper buffer block according to claim 5, characterized in that: The piston rod (1) has an upper seal (5) extending through its bottom.

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