Bidirectional external oil-pressure-adjustable damper for high-speed standard train rail

Abstract

The invention relates to a bidirectional external oil-pressure-adjustable damper for a high-speed standard train rail. The damper mainly comprises a pressure cylinder, an oil storage cylinder, a guidecover, a one-way oil return valve system and an unloading valve system. The one-way oil return valve system comprises an oil guide pipe and a one-way valve. The oil guide pipe is arranged in the oilstorage cylinder. One end of the one-way valve is communicated with the pressure cylinder through a first oil way channel, and the other end of the one-way valve is communicated with the oil guide pipe, so oil in the oil storage cylinder flows into the pressure cylinder in one direction. The unloading valve system comprises a first core valve, a first spring and a first adjusting stud, wherein oneside of the first core valve is communicated with the oil storage cylinder through a second oil way, the other side the first core valve is communicated with the pressure cylinder, the first spring is connected with the first core valve and the first adjusting stud, and tensile damping force of the damper is controlled by adjusting the first adjusting stud. The dynamic characteristics of a traincan be met, and the damper can be placed outside and can be adjusted.

Description

technical field [0001] The invention belongs to the technical field of oil pressure shock absorbers for rail vehicles, and relates to a two-way external adjustable oil pressure shock absorber for high-speed moving tracks, in particular to the improvement of the structure of anti-snake oil pressure shock absorbers for rail vehicles. Background technique [0002] With the rapid development of high-speed trains such as high-speed trains, the requirements for the safety and comfort of vehicles are getting higher and higher, and the shock absorbers that resist serpentine motion are also becoming more and more important. The structure of the shock absorber is mainly divided into It is a one-way external adjustable hydraulic shock absorber (such as figure 1 ) and two-way built-in adjustable hydraulic shock absorber (such as figure 2 ); the one-way shock absorber is externally adjustable to facilitate the adjustment of damping parameters and the replacement of damping valves and s...

AI Technical Summary

Problems solved by technology

But for the anti-serpentine shock absorber, due to its structural characteristics, its dynamic characteristics are not as good as the two-way shock absorber, and the ride comfort of the vehicle is not as good as the two-way; Good, but the adjustment of its damping parameters is built-in adjustable, and it is not easy to replace damping valves, springs and other components

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