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Oil damper and high speed train applying same

A technology of hydraulic shock absorbers and guides, which is applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., to achieve the effect of ensuring stability and reliability, and occupying a small radial size

Pending Publication Date: 2021-04-30
ZHUHAI YECHENG RAIL TRANSPORTATION EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide an oil pressure shock absorber and a high-speed EMU using it, so as to solve how to effectively improve the sealing of the oil pressure shock absorber under the premise of ensuring that the radial dimension of the guide sealing structure is as small as possible. Stability and Reliability Issues

Method used

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  • Oil damper and high speed train applying same

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Embodiment Construction

[0024] For ease of understanding, the oil shock absorber provided by the embodiment of the present invention and the high-speed train set to which it is applied will be described in detail below in conjunction with the accompanying drawings.

[0025] An embodiment of the present invention provides an oil shock absorber, such as figure 1 As shown, it includes: a piston rod 1, a guide 2 is set on the outside of the piston rod 1, and the guide 2 is provided with a skeleton oil seal 3;

[0026] Compared with the prior art, the oil pressure shock absorber described in the embodiment of the present invention has the following advantages:

[0027] In the oil pressure shock absorber provided by the embodiment of the present invention, since the outer side of the piston rod 1 is fitted with a guide 2, and the guide 2 is provided with a skeleton oil seal 3, at the same time, there is a sterilizer between the guide 2 and the piston rod 1 Seal 4, so when the shock absorber is working, th...

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Abstract

The invention discloses an oil damper and a high speed train applying the same, and relates to the technical field of rail transit dampers. The oil damper and the high speed train applying the same aim to achieve the purpose of effectively improving the sealing stability and reliability of the oil damper on the premise of ensuring that the radial size of a guide sealing structure is small as much as possible. The oil damper comprises a piston rod, wherein a guider is arranged on the outer side of the piston rod in a sleeving mode, and the guider is provided with a framework oil seal; and a step seal is further arranged between the guider and the piston rod. The oil damper is mainly applied to the high speed train.

Description

technical field [0001] The invention relates to the technical field of rail transit shock absorbers, in particular to an oil pressure shock absorber and a high-speed EMU using the same. Background technique [0002] At present, the oil pressure shock absorber is a key component of the rail vehicle, with extremely high technical content, and its working performance is directly related to the ride comfort and safety of the rail vehicle. In recent years, with the rapid development of my country's high-speed rail technology, the speed of rail vehicles is also increasing, and the requirements for the safety and stability of shock absorbers are also getting higher and higher. The Fuxing series models launched successively in my country have enhanced the influence and voice of my country's high-speed rail in the world. However, due to the limitation of domestic technical conditions, the shock absorbers equipped on many models are imported from abroad. Not only are the prices high, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/36
CPCF16F9/362
Inventor 张红伟吴旭吴彤
Owner ZHUHAI YECHENG RAIL TRANSPORTATION EQUIP TECH