A rolling contact pantograph head

Abstract

The invention relates to a rolling contact pantograph head which belongs to the technical field of stable current collection of a pantograph and catenary system. By the aid of the rolling contact pantograph head, frictional wear among pantograph and catenary is reduced effectively, the performance, of a pantograph, resisting impact from hard points of wires of a catenary is improved, off-line rate of the pantograph and catenary is lowered substantially, and current collection quality is improved. The rolling contact pantograph head comprises a roller, a left end cover, a right end cover, conductive blades, conductive liquid, a metal conductive shaft, a left conductive corner and a right conductive corner, wherein through holes are formed in the left end cover and the right end cover, the metal conductive shaft is arranged in the roller, the left end cover and the right end cover are arranged at the left and the right ends of the roller respectively, two ends of the metal conductive shaft penetrate the through holes of the left end cover and the right end cover respectively and are arranged out of spaces formed between the left and right end covers and the roller, a closed inner cavity is formed by the metal conductive shaft, the left end cover, the right end cover and the roller, the conductive liquid is arranged in the inner cavity, the conductive blades are arranged on the metal conductive shaft in the inner cavity, and the left conductive corner and the right conductive corner are arranged at two ends of the roller and are in seamless joint with the roller.

Description

technical field [0001] The invention belongs to the technical field of pantograph-catenary system stable current receiving, and relates to a rolling contact pantograph head. Background technique [0002] The existing pantograph is mainly composed of several parts such as the chassis, the hinge mechanism, the bow head part, the bow raising device and the gas circuit assembly. Generally, the existing high-speed electric locomotive relies on the contact of the pantograph slide plate with the catenary wire, relatively slides, obtains electric energy from the contact wire, and transmits it to the electric locomotive. At present, the traditional sliding contact current receiving method will cause serious friction and wear between the pantograph slide plate and the catenary wire, so that the service life of the pantograph slide plate and the catenary wire is relatively short, thereby increasing the operating cost. At the same time, due to the unevenness of the catenary wire, the p...

AI Technical Summary

Problems solved by technology

At present, the traditional sliding contact current receiving method will cause serious friction and wear between the pantograph slide plate and the catenary wire, so that the service life of the pantograph slide plate and the catenary wire is relatively short, thereby increasing the operating cost

At the same time, due to the unevenness of the catenary wire, the pantograph slide will be impacted and damaged when it encounters the hard point of the catenary wire during operation, and will even be separated from the catenary wire, resulting in an offline phenomenon. High temperature arc will cause abnormal wear of catenary conductors and pantograph slides, and in severe cases, it will cause power outage of electric locomotives and bring huge economic losses to railway enterprises

In addition, in order to ensure the current quality of the pantograph-catenary system, reduce contact resistance and contact resistance fluctuations, and reduce the off-line rate of the pantograph-catenary system, a certain contact pressure must be ensured between the pantograph-catenary bow heads of the existing sliding contact pantograph, but the increase of the contact pressure The friction between the pantograph and catenary is increased, which leads to the intensification of friction and wear between the pantograph and catenary, and further shortens the service life of the sliding contact pantograph slide plate and catenary wire

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