Expansion joint for conductive rail assembly and conductive rail assembly

Abstract

The invention discloses an expansion joint for a conductive rail assembly and a conductive rail assembly. The expansion joint comprises a first adapter body, a first fixed steel plate, a second adapter body, a second fixed steel plate and a slide steel plate, wherein the first fixed steel plate is arranged on the first adapter; the second adapter body is separated from the first adapter body; thesecond fixed steel plate is arranged on the second adapter body, and a distance between the first fixed steel plate and the second fixed steel plate gradually increases in the width direction of the second adapter body; and the slide steel plate is arranged between the first fixed steel plate and the second fixed steel plate and is slidably connected with the first fixed steel plate and the secondfixed steel plate separately, and the upper surfaces of the first fixed steel plate, the second fixed steel plate and the slide steel plate are flush. According to the expansion joint provided by theinvention, no gap can be ensured between the slide steel plate and the first fixed steel plate and the second fixed steel plate, thereby ensuring smooth transition of a current collector, increasingthe running speed of the train and reducing the noise.

Description

technical field [0001] The invention relates to the technical field of conductor rails, in particular to an expansion joint for a conductor rail assembly and a conductor rail assembly. Background technique [0002] In the related technology, the expansion joint is installed with a three-stage contact rail, which is mechanically anchored and connected by an aluminum alloy splint. The material of the current connector is pure copper plated with silver plating for electrical current carrying, and the connection mechanism is mechanically connected by soft copper strips. This type of expansion joint compensates for the length change caused by the thermal expansion and contraction of the conductor rail, mechanical displacement, etc. by reserving expansion and contraction gaps, and because the flow receiving surfaces of the three conductor rails are difficult to ensure coplanarity During the process, the current collector and the gap will produce different degrees of abnormal impac...

AI Technical Summary

Problems solved by technology

This type of expansion joint compensates for the length change caused by the thermal expansion and contraction of the conductor rail, mechanical displacement, etc. by reserving expansion and contraction gaps, and because the flow receiving surfaces of the three sections of the conductor rail are difficult to ensure coplanarity, it is difficult to ensure that the current collector passes through During the process, the current collector and the gap will produce different degrees of abnormal impact noise and unstable current receiving. In severe cases, it will also lead to the generation of arcs, thereby accelerating the wear of the carbon slide plate of the current collector. It is very obvious when running, which limits the speed of the train

The abnormal noise generated by the impact is very obvious in the background of low-noise rail traffic such as straddle monorail, which reduces the comfort of the ride

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