Expansion joint with steel aluminum composite rails and double copper rings

A steel-aluminum composite and expansion joint technology, which is applied to power rails and other directions, can solve the problems of insufficient reliability and large initial sliding starting force, and achieve the effects of improving the current receiving performance, reducing the number and reducing the thickness.

Inactive Publication Date: 2013-05-22
李雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Before the present invention was made, in the prior art, the steel-aluminum composite rail expansion joint for the third rail power supply of urban rail transit, such as the bellows expansion joint of the steel-aluminum composite rail with the patent No. ZL200920178441.5, and the steel-aluminum composite rail with the patent No. The mandrel-type expansion joints of composite rails have the common disadvantage of large initial sliding force during thermal expansion and contraction, and insufficient reliability

Method used

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  • Expansion joint with steel aluminum composite rails and double copper rings
  • Expansion joint with steel aluminum composite rails and double copper rings
  • Expansion joint with steel aluminum composite rails and double copper rings

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Embodiment Construction

[0014] Below the present invention is further described in conjunction with the embodiment in the accompanying drawings:

[0015] exist figure 1 Among them, the left side is the left steel-aluminum composite rail 1, and the right side is the right steel-aluminum composite rail 7. The left and right steel-aluminum composite rails are originally integrated, and the wire is run on the wire electric discharge machine in a horizontal Z shape. The length of the slit along the longitudinal center line is 400mm, and the left slit starts from the longitudinal center line and cuts down to the edge. The length of the slots is half of the width of the steel-aluminum composite rail which is 92mm, that is, 46mm; the slots on the right side are cut 46mm upwards from the longitudinal center line, and the three slots make a steel-aluminum composite rail into two sections, which protrude left and right in the middle 400mm. Drag the distance δ to the two ends to become the reserved expansion j...

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Abstract

The invention relates to an expansion joint with steel aluminum composite rails and double copper rings and belongs to equipment powered by third rails in urban rail transit. The expansion joint mainly comprises the left and right steel aluminum composite rails, fishplates and double-cooper-ring current compensator, the current compensator is provided with two juxtaposed copper rings: a lower copper ring 2 and an upper copper ring 3, and the steel aluminum composite rail is divided into a left steel aluminum composite rail 1 and a right steel aluminum composite rail 7 by means of Z-shaped wire-electrode cutting. The expansion joint with the steel aluminum composite rails and the double copper rings is small in initial slide starting force and high in reliability.

Description

technical field [0001] The invention relates to a steel-aluminum composite rail double-copper ring expansion joint, which belongs to the third rail power supply equipment of urban rail transit. Background technique [0002] Before the present invention was made, in the prior art, the steel-aluminum composite rail expansion joint for the third rail power supply of urban rail transit, such as the bellows expansion joint of the steel-aluminum composite rail with the patent No. ZL200920178441.5, and the steel-aluminum composite rail with the patent No. The mandrel-type expansion joints of composite rails have the common disadvantages of large initial sliding force during thermal expansion and contraction, and insufficient reliability. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the steel-aluminum composite rail expansion joint, reduce its initial sliding starting force, and further improve its relia...

Claims

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Application Information

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IPC IPC(8): B60M1/30
Inventor 李雷
Owner 李雷
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