Anti-vibration pad of oil damper for high-speed train

Abstract

A damping pad of an oil damper for a high-speed train relates to the technical field of rail transit dampers, and can ensure that the rigidity of the damping pad meets the requirement of safe and comfortable operation of a train by optimizing the internal structure of the damping pad and on the basis of not sacrificing other properties of a rubber damping pad. The anti-vibration pad of the oil damper for the high-speed motor car comprises an anti-vibration pad body made of rubber, a metal plate is arranged in the anti-vibration pad body, and the anti-vibration pad is formed in the mode that the rubber and the metal plate are vulcanized into a whole; the number of the metal plates is multiple, and the multiple metal plates are distributed in the axial direction of the anti-vibration pad body at intervals.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit shock absorbers, in particular to a vibration damping pad of an oil pressure shock absorber for a high-speed motor vehicle, which is particularly suitable for a vertical shock absorber connection structure. Background Art

[0002] Hydraulic shock absorber is a key component of rail vehicles with extremely high technical content. Its working performance is directly related to the ride comfort and safety of rail vehicles.

[0003] In recent years, with the rapid development of my country's high-speed rail technology, the speed of rail vehicles has been continuously increasing, and the requirements for the safety and stability of shock absorbers have become increasingly higher. The Fuxing series of models launched in my country have enhanced the influence and voice of my country's high-speed rail in the world, but due to the limitations of domestic technical conditions, the shock absorbers equipped on many models are imported from abroad, which are not only expensive, but also have low cooperation from suppliers and cannot quickly respond to various requirements put forward by the OEM.

[0004] Against this background, it is imperative for my country to develop EMU shock absorbers with its own intellectual property rights based on the absorption of foreign advanced technologies.

[0005] Due to the high speed of EMUs and high-speed trains, higher requirements are placed on the performance and stability of shock absorbers. Due to the limitation of installation size, some models use a rod connection structure, and the interface position needs to be connected with a vibration damping pad and a pressure plate. When calculating the power, the stiffness requirement of the vibration damping pad is high, which is difficult to meet through the previous method of submitting rubber hardness, and will sacrifice the overall performance of the rubber product. Summary of the invention

[0006] The utility model aims to provide a high-speed train hydraulic shock absorber vibration damping pad, which can ensure its rigidity to meet the safety and comfortable operation of the train without sacrificing other properties of the rubber vibration damping pad by optimizing the internal structure of the vibration damping pad.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A vibration damping pad for a hydraulic shock absorber for a high-speed motor vehicle, comprising: a vibration damping pad body made of rubber, a metal plate being arranged inside the vibration damping pad body, and the vibration damping pad is formed by vulcanizing the rubber and the metal plate into one body;

[0009] The metal plates include a plurality of metal plates, and the plurality of metal plates are distributed at intervals along the axial direction of the vibration damping pad body.

[0010] Wherein, the plurality of metal plates are distributed at equal intervals along the axial direction of the vibration damping pad body.

[0011] Specifically, one end side of the vibration damping pad body has a boss, and the other end side has a wedge-shaped groove.

[0012] Furthermore, two metal plates are provided, and the two metal plates divide the axial direction of the vibration damping pad body into three equal parts.

[0013] Compared with the prior art, the hydraulic shock absorber vibration damping pad for high-speed motor vehicle described in the utility model has the following advantages:

[0014] In the vibration damping pad of the oil pressure vibration damper for high-speed motor vehicles provided by the utility model, since a metal plate is arranged inside the vibration damping pad body made of rubber material, and the vibration damping pad is formed by vulcanizing the rubber and the metal plate into one body, the axial stiffness of the vibration damping pad can be effectively improved without changing the performance of the rubber, thereby effectively solving the problem of reduced comprehensive performance of the rubber in the prior art due to excessive hardness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic structural diagram of a vibration damping pad of a hydraulic shock absorber for a high-speed motor vehicle provided in an embodiment of the present invention.

[0016] Reference numerals:

[0017] 1-vibration damping pad body; 11-boss; 12-wedge-shaped groove; 2-metal plate. Implementation

[0018] In the prior art, the hardness of rubber is usually increased by adding additives such as graphite, thereby increasing the axial stiffness of the vibration damping pad. However, the increase in the hardness of the rubber will have a certain negative impact on its ductility, life and other properties.

[0019] For ease of understanding, the vibration damping pad of the hydraulic shock absorber for high-speed motor vehicles provided by the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings of the specification.

[0020] The utility model provides a vibration damping pad for a high-speed motor vehicle oil pressure shock absorber, such as Figure 1 As shown, it comprises: a vibration damping pad body 1 made of rubber material, and a metal plate 2 is arranged inside the vibration damping pad body 1, and the vibration damping pad is formed by vulcanizing the rubber and the metal plate 2 into one body;

[0021] The metal plates 2 include a plurality of metal plates 2 , and the plurality of metal plates 2 are spaced apart and distributed along the axial direction of the vibration damping pad body 1 .

[0022] Compared with the prior art, the hydraulic shock absorber vibration damping pad for high-speed motor vehicles described in the embodiment of the utility model has the following advantages:

[0023] In the vibration damping pad of the hydraulic shock absorber for high-speed motor vehicles provided by the embodiment of the utility model, since a metal plate 2 is arranged inside the vibration damping pad body 1 made of rubber material, and the vibration damping pad is formed by vulcanizing the rubber and the metal plate 2 into one body, the axial stiffness of the vibration damping pad can be effectively improved without changing the performance of the rubber, thereby effectively solving the problem of reduced comprehensive performance of the rubber in the prior art due to excessive hardness.

[0024] Among them, Figure 1 As shown, the plurality of metal plates 2 may preferably be distributed at equal intervals along the axial direction of the vibration damping pad body 1 .

[0025] Specifically, Figure 1 As shown, the vibration damping pad body 1 may have a boss 11 at one end and a wedge-shaped groove 12 at the other end.

[0026] Furthermore, if Figure 1 As shown, two metal plates 2 may be provided, and the two metal plates 2 may preferably divide the axial direction of the vibration damping pad body 1 into three equal parts.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-speed motor vehicle oil pressure shock absorber vibration damping pad, characterized in that: include: A vibration damping pad body made of rubber, wherein a metal plate is arranged inside the vibration damping pad body, and the vibration damping pad is formed by vulcanizing the rubber and the metal plate into one body; The metal plates include a plurality of metal plates, and the plurality of metal plates are distributed at intervals along the axial direction of the vibration damping pad body.

2. The vibration damping pad of the hydraulic shock absorber for high-speed motor vehicle according to claim 1, characterized in that: The plurality of metal plates are distributed at equal intervals along the axial direction of the vibration damping pad body.

3. The vibration damping pad of the hydraulic shock absorber for high-speed motor vehicle according to claim 1 or 2, characterized in that: One end side of the vibration-damping pad body is provided with a boss, and the other end side is provided with a wedge-shaped groove.

4. The vibration damping pad of the hydraulic shock absorber for high-speed motor vehicle according to claim 3 is characterized in that: Two metal plates are provided, and the two metal plates divide the axial direction of the vibration damping pad body into three equal parts.

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