Joint for oil pressure shock absorber of railway rolling stock

Abstract

The invention belongs to the technical field of oil pressure shock absorbers, and particularly relates to a joint for an oil pressure shock absorber of a railway rolling stock, the joint comprises a joint sleeve, a rubber joint and a positioning device, the outer side of the rubber joint is connected with the inner wall of the joint sleeve, and the rubber joint comprises an outer cylinder sleeve, a rubber layer and a mandrel; the inner side of the outer cylinder sleeve is fixedly connected with the outer side of the rubber layer, and the inner side of the rubber layer is fixedly connected with the mandrel. By arranging a fixing piece, a clamping block and a first notch, when the end of the fixing piece extends into the cavity through the first notch, under the action of a reset spring, the clamping block can extend outwards from the side face of the fixing piece to restore to the initial state, and the clamping block is clamped at the joint of the inner wall of the cavity and the port of the first notch; therefore, the end of the fixing piece is arranged in the cavity through the clamping block, connection between the rubber joint and the joint sleeve is enhanced, the frequency of loosening and moving between the rubber joint and the joint sleeve is reduced, and the safety of the oil pressure shock absorber is improved.

Description

technical field [0001] The invention belongs to the technical field of hydraulic shock absorbers, in particular to a joint used for hydraulic shock absorbers of railway rolling stock. Background technique [0002] The hydraulic shock absorber is one of the important parts on the bogie of the railway locomotive. It is composed of parts such as piston rod, piston and damping valve. The high frequency and low frequency vibration of each part of the railway locomotive needs to be attenuated by the hydraulic shock absorber. , so the performance of the hydraulic shock absorber directly plays a vital role in the running stability, riding comfort and curve passing ability of the railway locomotive; [0003] The working principle of the hydraulic shock absorber is: the shock absorber piston is filled with oil up and down. When the bolster vibrates up and down, it drives the piston rod to perform a reciprocating motion of stretching and compression. When stretching, the oil on the upp...

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the shortage, the interference fit between the rubber joint and the joint sleeve becomes loose after the existing shaft sleeve connector works for a long time, resulting in loose movement between the rubber joint and the joint sleeve, resulting in a reduction in oil pressure and shock absorption In order to solve the problem of safety device, the present invention proposes a joint for oil pressure shock absorber of railway rolling stock

Images