End cover for rail car shock absorber

A technology for rail vehicles and shock absorbers, applied in shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of low valve regulating efficiency, unstable damping force, and many factors affecting valve regulating, etc. Improve the efficiency of regulating valve and the effect of convenient adjustment

Active Publication Date: 2020-03-10
CRRC CHANGZHOU DIESEL ENGINE COMPONENTS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a shock absorber that can reduce the working noise of the shock absorber, improve the damping performance, and improve the valve adjustment efficiency in view of the shortcomings of the existing shock absorber, such as large noise, many factors affecting valve adjustment, unstable damping force, and low valve adjustment efficiency. Efficient end caps for rail vehicle shock absorbers

Method used

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  • End cover for rail car shock absorber
  • End cover for rail car shock absorber
  • End cover for rail car shock absorber

Examples

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Embodiment 1）

[0038] See Figure 1 to Figure 4 , The rail vehicle shock absorber end cover of this embodiment includes an end cover body 1 , a damping valve 2 , an unloading valve 3 and a one-way valve 4 .

[0039]The center of the end cap body 1 is provided with a piston rod installation hole 1 - 1 penetrating through both ends of the end cap body 1 in the axial direction. The end cover body 1 is also provided with a damping valve installation hole 1-2, an unloading valve installation hole 1-3 and a one-way valve installation hole 1-4. Both the damping valve mounting hole 1-2 and the unloading valve mounting hole 1-3 run through both ends of the end cover body 1 . The one-way valve installation holes 1-4 are blind holes opened on the inner end surface of the end cover body 1 . The outer peripheral surface of the end cover body 1 is provided with the oil passage holes 1-5 correspondingly connected with the damping valve installation hole 1-2, the unloading valve installation hole 1-3 and ...

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Abstract

The invention discloses an end cover for a rail car shock absorber. The end cover comprises an end cover body, a damping valve, an unloading valve and a one-way valve. A piston rod mounting hole penetrating through the two end faces of the end cover body is formed in the center of the end cover body. A damping valve mounting hole, an unloading valve mounting hole and a one-way valve mounting holeare further formed in the end cover body. The damping valve mounting hole and the unloading valve mounting hole both penetrate through the two end faces of the end cover body. The one-way valve mounting hole is a blind hole formed in the inner end face of the end cover body in an opened manner. The damping valve is mounted in the damping valve mounting hole, the unloading valve is mounted in the unloading valve mounting hole, and the one-way valve is mounted in the one-way valve mounting hole. The damping valve mounting hole and the unloading valve mounting hole both penetrate through the twoend faces of the end cover body, the valves can be directly adjusted without dismounting the shock absorber, and therefore adjusting is very convenient.

Description

technical field [0001] The invention relates to an end cover for a rail vehicle shock absorber. Background technique [0002] When the EMU is running, due to the stimulation of various factors, there will inevitably be interactions between the vehicles and the track, and between the various vehicles of the EMU, and the horizontal and vertical unbalanced forces will be generated through the interaction. In addition, during the manufacturing process, the rails cannot be absolutely straight and rigid, and the wheels of the EMU cannot be ideally round. It is precisely because of this unbalanced force and manufacturing error that the EMU will present complex motion laws when running along the rails, so vibration will inevitably occur, which will have an important impact on the operation safety of the EMU and the comfort of passengers. In order to reduce the vibration frequency and amplitude and improve the safety of EMU operation, oil shock absorbers are more and more widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/512F16F9/34F16F9/38
CPCF16F9/34F16F9/38F16F9/512
Inventor 庞林春周小智方照根刘畅陈春鹏陈超
Owner CRRC CHANGZHOU DIESEL ENGINE COMPONENTS CO LTD
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