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Liquid compound spring

A composite spring and liquid technology, applied in the field of liquid composite springs, can solve the problems of limited vibration energy dissipation capacity, small damping of rubber materials, high-frequency dynamic softening, etc., to provide damping performance, high damping performance, variable stiffness and damping performance effect

Pending Publication Date: 2019-12-20
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the rubber material, the dynamic stiffness of the rubber conical spring decreases with the increase of the frequency, and high-frequency dynamic softening occurs; at the same time, the damping of the rubber material is small, and the ability to dissipate vibration energy is limited.

Method used

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  • Liquid compound spring
  • Liquid compound spring
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Experimental program
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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing.

[0031] figure 1 A liquid composite spring according to one embodiment of the invention is schematically shown. According to the liquid composite spring of the present invention, especially when vibrating, liquid can reciprocate in the upper and lower liquid chambers through the damping channel, thereby providing variable stiffness and damping effects.

[0032] figure 1 A liquid composite spring according to an embodiment of the invention is schematically shown, comprising a mandrel 1 . The upper part of the mandrel 1 is connected with a jacket 2 , and the lower part of the jacket 2 is sheathed on the upper part of the mandrel 1 . Wherein, the upper part of the mandrel 1 is located inside the casing 2 , and the lower part of the mandrel 1 is located outside the casing 2 . The upper space inside the jacket 2 is provided with an upper liquid chamber 3 , and the middle part...

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PUM

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Abstract

The invention relates to a liquid compound spring which is used on vehicles, especially on railway vehicles. The liquid compound spring comprises a mandrel, a jacket, an upper liquid chamber and a lower liquid chamber, wherein the jacket sleeves the upper part of the mandrel; the upper part of the mandrel is located inside the jacket, and the lower part of the mandrel is located outside the jacket; the upper liquid chamber is formed in the upper part of the jacket; the lower end of the upper liquid chamber is connected to the top of the mandrel; the lower liquid chamber is formed in the lowerpart of the jacket and connected with the mandrel; and a damping flow passage is formed in the mandrel and communicates a liquid in the upper liquid chamber with a liquid in the lower liquid chamber.The liquid compound spring has a function of vibration damping, and can change the stiffness and the damping effect.

Description

technical field [0001] The invention relates to a liquid composite spring for a vehicle, in particular a rail vehicle. Background technique [0002] When the vehicle is running on the track, complex vibration phenomena are accompanied by it. Therefore, it is essential to install a spring device on the railway vehicle to attenuate mechanical vibration. Traditional rubber conical springs are easy to obtain different stiffness values ​​in the vertical, transverse and longitudinal directions, and have good nonlinear characteristics, so they can better meet the general axle box suspension requirements. However, due to the limitations of the rubber material, the dynamic stiffness of the rubber conical spring decreases with the increase of the frequency, and high-frequency dynamic softening occurs; at the same time, the damping of the rubber material is small, and the ability to dissipate vibration energy is limited. Contents of the invention [0003] In view of the above proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/08F16J15/10
CPCF16F13/08F16F13/085F16J15/10F16F2230/30
Inventor 丁行武卜继玲李艺盟刘桂杰王凤夏彰阳
Owner ZHUZHOU TIMES NEW MATERIALS TECH