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Double-side inclined multi-roller backflow shoe and cylindrical backflow rail system

A cylindrical, return rail technology, used in power rails, current collectors, electrical components, etc., can solve problems such as stray current, rail return current receiving shoes wear, etc., to reduce wear, ensure reliable operation, and improve Reliability and operational cycle effects

Inactive Publication Date: 2020-06-05
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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  • Double-side inclined multi-roller backflow shoe and cylindrical backflow rail system
  • Double-side inclined multi-roller backflow shoe and cylindrical backflow rail system
  • Double-side inclined multi-roller backflow shoe and cylindrical backflow 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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PUM

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Abstract

The invention discloses a double-side inclined multi-roller backflow shoe and cylindrical backflow rail system which comprises a backflow shoe and a cylindrical backflow rail, a supporting plate of the backflow shoe is connected with a roller support through a shock absorber, and four rollers are symmetrically arranged on the inclined face of the bottom of the roller support. The roller is in rolling contact with the cylindrical return rail to form working grounding. The current situation of motor train unit rail backflow can be effectively improved, electrochemical corrosion of stray currentto steel rails and interference to other electrical equipment are restrained, and the lightweight design meets the technical standard of backflow voltage; and meanwhile, more materials are not consumed, and the backflow reliability can be guaranteed through damping measures.

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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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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