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Vibration absorbing device used for railway train

A vibration damping device and rail train technology, applied in the field of rail trains, can solve problems such as limited vibration energy dissipation capacity, small damping of rubber materials, and decreased dynamic stiffness, so as to increase the fluid damping effect and improve the energy consumption effect of shock absorption , Improve the effect of dynamic stiffness stability

Active Publication Date: 2019-01-18
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the speed of the railway increases and the load increases, due to the limitations of the rubber material, the dynamic stiffness of the rubber conical spring decreases with the increase of the frequency, and there is a phenomenon of high-frequency dynamic softening; at the same time, the damping of the rubber material is small , limited ability to dissipate vibrational energy
The limitations of traditional rubber conical springs are becoming more and more obvious

Method used

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  • Vibration absorbing device used for railway train
  • Vibration absorbing device used for railway train
  • Vibration absorbing device used for railway train

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing.

[0032] figure 1 and figure 2 Both show a vibration damping device 100 according to the invention. Such as figure 1 and 2 As shown, the vibration damping device 100 includes a housing element 1 , a spindle assembly 2 and a spring element 3 . Wherein, the housing element 1 has a sealed liquid storage cavity 11 for storing liquid. The mandrel assembly 2 is arranged in the liquid storage chamber 11 , and the lower end of the mandrel assembly 2 extends downward through the elastic bottom wall of the housing element 1 . The spring element 3 is wrapped around the outer wall of the mandrel assembly 2 and located in the liquid storage chamber 11 to divide the liquid storage chamber 11 into an upper liquid chamber 12 and a lower liquid chamber 13 . Moreover, a fluid channel 4 is provided on the mandrel assembly 2 for communicating with the upper liquid chamber 12 and the lower...

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Abstract

The invention provides a vibration absorbing device used for a railway train. The device includes a shell element having a closed liquid storage chamber, a central spindle assembly and a spring element, wherein the central spindle assembly passes through the elastic bottom wall of the shell element sealingly and extends downwards, and the spring element is arranged on the outer wall of the centralspindle assembly in a cladding mode and located in a liquid storage cavity. The spring element divides the liquid storage cavity into an upper liquid cavity and a lower liquid cavity, and a fluid channel used for communicating the upper liquid cavity and the lower liquid cavity is formed in the central spindle assembly. The vibration absorbing device has the fluid damping effect on the basis of the spring element, and the dynamic stiffness characteristics of the spring assembly are combined with the damping characteristics of fluid, thereby improving the dynamic stiffness stability and vibration-reduction and energy-dissipation capacity of the vibration absorbing device.

Description

technical field [0001] The invention relates to the technical field of rail trains, in particular to a vibration damping device for rail trains. Background technique [0002] During the running of rail trains, complex vibration phenomena will be generated. Therefore, it is essential to install a damping device for damping mechanical vibrations on rail trains. For example, the conical spring is used in the primary suspension of the rolling stock bogie, and its main function is to bear the load of the car body and frame. [0003] 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 meet the general axle box suspension requirements. However, as the speed of the railway increases and the load increases, due to the limitations of the rubber material, the dynamic stiffness of the rubber conical spring decreases with the increase of the frequ...

Claims

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Application Information

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IPC IPC(8): F16F9/10F16F9/32F16F9/34F16F13/00B61F5/30
CPCB61F5/307F16F9/10F16F9/3207F16F9/34F16F13/002F16F2222/12
Inventor 刘桂杰卜继玲王永冠丁行武邹波张亚新
Owner ZHUZHOU TIMES NEW MATERIALS TECH