Anti-bending cable structure for railway

Abstract

The invention discloses an anti-bending cable structure for railways, which comprises an insulating sheath, and an insulating lining and a carbon fiber composite wire which are arranged in the insulating sheath, the carbon fiber composite wire comprises an inner core and a conductor sleeved on the inner core, and the inner core is a carbon fiber flat wire; the insulating lining is filled between the conductor and the insulating sheath; the insulating sheath enables the carbon fiber composite wire to be bent around the X axis, and the X axis is a straight line parallel to the length direction of the cross section of the inner core. According to the anti-bending cable structure for the railway provided by the invention, compared with a round wire, the carbon fiber flat wire has better bending performance along the wide side. During design, the anti-bending cable structure ingeniously adopts an asymmetric outer insulation structure, so that the anti-bending cable structure is bent along the wide side of the inner-layer carbon fiber flat wire, the strength of the anti-bending cable structure is ensured, the bending performance of the anti-bending cable structure is better, and the anti-bending cable structure can be rolled on a wire spool more easily.

Description

technical field [0001] The invention belongs to the field of cables, and more specifically relates to a bending-resistant cable structure for railways. Background technique [0002] Electrified railway is currently the preferred railway traction power mode in all countries in the world due to its advantages such as large traction power, energy saving and environmental protection, high operating capacity, and fast speed. Due to the almost stringent requirements for safety in railway transportation, system reliability is always one of the primary indicators for the development of railway technology. The power supply system is the core part of the electrified railway construction, and the electrified railway cable, as the transmission link of traction power, is the source of the entire power supply system. [0003] Most electrified railway cables in the prior art are laid by direct burial or in cable trenches. The environment is relatively humid, and even in contact with water...

AI Technical Summary

Problems solved by technology

[0003] Most electrified railway cables in the prior art are laid by direct burial or in cable trenches. The environment is relatively humid, and even in contact with water for a long time, the cables are prone to moisture. After the cables are damp, the moisture will gradually penetrate into the wires inside the cable insulation, affecting the use of the cables. life

Simultaneously, the railway cables in the prior art all set the metal armor layer on the outer layer to increase the tensile strength of the cable, but the metal armor layer will squeeze the wires arranged inside it when the wire is bent, which may Cause the breakage of the wire, etc., and the cable is not easy to bend when it is reeled, which affects its reeling and transfer

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