Anti-fatigue pre-twisted protective bar

A protection strip, anti-fatigue technology, applied in the direction of overhead lines, etc., can solve problems such as failure of load-bearing cable seats, and achieve the effects of reducing stress and strain, enhancing anti-fatigue performance, and enhancing rigidity

Inactive Publication Date: 2012-04-04
北京盈电电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an anti-fatigue type pre-twisted protective strip, which is used to solve the problem in the prior art that the catenary cable is damaged at the catenary cable seat due to vibration fatigue

Method used

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  • Anti-fatigue pre-twisted protective bar
  • Anti-fatigue pre-twisted protective bar
  • Anti-fatigue pre-twisted protective bar

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The anti-fatigue type pre-twisted protective strip (hereinafter referred to as the protective strip) involved in the embodiment of the present invention is a part for the electrified railway catenary, which is used at the catenary cable seat of the catenary to strengthen the tension of the catenary cable at the catenary cable seat. Rigidity reduces the stress and strain of the catenary cable at the catenary cable seat, effectively avoiding the fatigue damage of the catenary cable.

[0022] Such as image 3 The anti-fatigue type pre-twisted protective strip related to the illustrated embodiment of the present invention includes two helical pre-twisted wire sheets, and the centers of the...

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PUM

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Abstract

The invention discloses an anti-fatigue pre-twisted protective bar. The protective bar comprises two spiral pre-twisted wire sheets; and the centers of the two pre-twisted wire sheets are twisted to form an enclosed circular tube. The anti-fatigue pre-twisted protective bar uniformly disperses pressure borne by a bearing seat to two sides without stress concentration; the stress strain of a lead at the position is reduced, the anti-fatigue property is improved, and the fatigue damage of the lead is effectively avoided; in addition, the invention has the advantages that the anti-fatigue pre-twisted protective bar can be installed manually, and is easy and quick to operate.

Description

technical field [0001] The invention relates to the technical field of railway catenary, in particular to an anti-fatigue type pre-twisted protective strip. Background technique [0002] With the development of my country's electrified railway, the performance requirements of electrified railway catenary components are getting higher and higher. The catenary catenary is used to suspend the catenary wire through the hanging string. The catenary cable can also carry a certain current to reduce the impedance of the traction network, reduce voltage loss and energy consumption. [0003] The catenary cables of electrified railways are affected by vibration during operation, and are often damaged at the catenary cable seats due to vibration fatigue, which affects the safe operation of the railway and increases inspection and maintenance costs. [0004] The traditional fixing method of the catenary cable at the supporting seat is only to wrap the catenary cable with a liner and pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M1/26
Inventor 苏蔚潇杨更才张继育林轶
Owner 北京盈电电气有限公司
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