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A double-sided inclined multi-roller return shoe and cylindrical return rail system

A cylindrical, return rail technology, applied in the direction of power rails, current collectors, connecting contact materials, etc., can solve the problems of track return shoe wear, stray current, etc., to ensure reliable operation and reduce wear , the effect of reducing friction

Inactive Publication Date: 2021-01-29
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of stray current, rail backflow and serious wear of the current collector shoe in the existing urban rail transit traction system, the present invention provides a double-sided inclined multi-roller return shoe and cylindrical return rail system

Method used

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  • A double-sided inclined multi-roller return shoe and cylindrical return rail system
  • A double-sided inclined multi-roller return shoe and cylindrical return rail system
  • A double-sided inclined multi-roller return shoe and cylindrical return rail system

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] A double-sided inclined multi-roller return shoe and cylindrical return rail system of the present invention, its structural composition is as follows Figure 1-Figure 3 As shown, it includes the return shoe and the cylindrical return rail 1, the support plate 2 of the return shoe is connected to the roller bracket 4 through the shock absorber, and four rollers 3 are symmetrically placed on the bottom slope of the roller bracket 4; the rollers 3 are in rolling contact with the cylindrical return rail 1 .

[0034] Roller 3 as Figure 6 As shown, it includes a roller metal layer 20, a bearing ball fixing layer 23 and a metal slot layer 24 from outside to inside; four carbon brushes 22 and a number of bearing balls 21 are evenly distributed in the bearing ball fixing layer 23. The metal slot layer 24 is evenly distrib...

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Abstract

The invention discloses a double-sided inclined multi-roller return shoe and a cylindrical return rail system, comprising a return shoe and a cylindrical return rail, the support plate of the return shoe is connected to a roller bracket through a shock absorber, and four rollers are symmetrically arranged on the inclined surface of the bottom of the roller bracket ; The rolling contact between the roller and the cylindrical return rail forms a working ground; the present invention can effectively improve the current situation of the rail return of the EMU, suppress the galvanic corrosion of the stray current on the rail and interfere with other electrical equipment, and the lightweight design meets the requirements of the return voltage Technical standards, while not consuming more materials, shock-absorbing measures can ensure the reliability of reflow.

Description

technical field [0001] The invention belongs to the field of electrified urban rail transit, and in particular relates to a double-sided inclined multi-roller return shoe and a cylindrical return rail system. Background technique [0002] At present, my country's urban rail transit system adopts the DC power supply system, and the traction return current flows back to the traction substation through the train rail. Since the train rail is a load-bearing running rail, it is impossible to be completely insulated from the ballast bed, and the resistance of the train rails in different sections is different, so part of the traction current will flow out from the train rail with higher resistance, leak to the ballast bed and other structures, and then flow back To the train rail with less resistance, a stray current is formed. The stray current flows through the ballast bed structure steel bars laid along the line, buried metal pipelines and building structure steel bars, etc., ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66H01R41/00B60M1/30
CPCB60M1/30H01R4/66H01R41/00
Inventor 肖嵩叶智宗罗远培张灿童梦园李玉航吴广宁魏文赋高国强杨泽锋
Owner SOUTHWEST JIAOTONG UNIV
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