A rail vehicle shock absorber

Abstract

The invention discloses a rail vehicle shock absorber, which comprises: a base assembly, an oil storage cylinder is sealed and fixed at the inner end; an oil cylinder is arranged in the oil storage cylinder, and one end of the oil cylinder is sealed and fixedly connected with the inner end of the base assembly; an end cover assembly , is sealed and fixedly connected with the other end of the oil cylinder and the oil storage cylinder; the piston assembly is arranged in the oil cylinder and is sealed and slidably connected with the inner wall of the oil cylinder; the piston rod assembly runs through the end cover assembly and is sealed and slidably connected with the end cover assembly The inner end of the assembly is fixedly connected with the piston assembly; the outer end of the piston rod assembly and the outer end of the base assembly are provided with rubber joints fixedly connected with it; the base assembly and the end cover assembly are provided with externally adjustable damping Force size damping valve. Both the base assembly and the end cover assembly of the present invention are equipped with damping valves that can adjust the damping force from the outside, and the adjustment is very convenient without dismantling the entire shock absorber, thereby greatly improving the adjustment efficiency of the damping force of the valve system.

Description

technical field [0001] The invention relates to 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 affect the operation safety of the EMU and the comfort of passengers. have an important impact. In order to reduce the vibration frequency and amplitude and improve the safety of EMU operation, the use of hydraulic shock absorbers in EMUs is becoming mo...

AI Technical Summary

Problems solved by technology

In order to reduce the vibration frequency and amplitude and improve the safety of EMU operation, the use of hydraulic shock absorbers in EMUs is becoming more and more extensive. However, due to design reasons, the existing shock absorbers can only The adjustment of the valve system is relatively complicated, which is not conducive to improving work efficiency, and the noise is relatively large, which is contrary to the concept of vibration reduction and noise reduction

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