Shock-adsorption rigid contact net for electrified rail traffic

Abstract

The invention belongs to the technical field of electrified railway traffic equipment, and provides a shock-adsorption rigid contact net for electrified rail traffic. The net includes a fixed body, afloating body, shock reducing elastic bodies, a wide-format contact line and insulating supporting seats, wherein the shock reducing elastic bodies are distributed between the fixed body and the floating body, so that the rigid contact net has certain flexibility, elasticity and shock reducing property, and shock can be prevented from spreading in the contact net. The shock reducing elastic bodiesare arranged in a scattered mode, concentrated loads at the supporting seats on the fixed body are converted into uniform loads on the floating body and the wide-format contact line, so that the pressure of a pantograph and the net always keeps consistent. The wide-format contact line is adopted, so that the effective abrasion amount is increased by 3-5 times, and the service life of the wide-format contact line is prolonged by 3-5 times or more. The net is suitable for a straight line section and a curve section, suitable for 'linear type' mounting and 'zig-zag type' mounting, suitable for equal-height mounting and height-continuous-changing mounting, and suitable for lower contact, side contact and the like.

Description

technical field [0001] The invention belongs to the technical field of electrified railway transportation equipment, and is a newly developed shock-absorbing rigid catenary for electrified rail transit. Background technique [0002] Compared with the flexible catenary, the rigid catenary has the advantages of saving installation space, no tension along the line without being broken, and easy maintenance; compared with the contact rail, it realizes live maintenance along the line section because it is suspended in the air. It improves the convenience of operation and maintenance and eliminates the potential safety hazard of electric shock for ground personnel. [0003] Rigid catenary is widely used in electrified railway culvert sections and urban underground railway sections. However, the current rigid catenary has revealed a series of problems affecting safety and operation. [0004] First of all, the rigid catenary lacks shock absorption performance, so that the shock wa...

AI Technical Summary

Problems solved by technology

Not only will the catenary be damaged or even fall off, but also the pantograph will be damaged, causing the pantograph to hang on the net or severely worn; the hard point will also bounce the pantograph away, causing the pantograph to go off-line (offline) and arc, And the pantograph slide plate and contact wire are quickly worn out, which greatly increases the amount of harmful dust

[0006] At present, the contact wires are all circular or narrow-width contact surface structures, the effective wear is very small, the contact wires need to be replaced frequently, the maintenance amount is large, and the operating efficiency is reduced

[0007] Therefore, the shock absorption performance of the rigid catenary needs to be improved urgently, the hard point support of the rigid catenary needs to be eliminated urgently, and the service life of the contact wire needs to be improved urgently

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