Streamlined high speed pantograph bow

Abstract

The invention relates to a streamlined high speed pantograph bow, comprising a pantograph bow body, a carbon sliding plate and a pantograph horn; the cross-sectional shape of the pantograph bow body is streamlined, the upper surface of the pantograph bow body is provided with a carbon sliding plate groove in the shape of long strips; the carbon sliding plate groove is internally embedded with a carbon sliding plate, the left side and right side of the pantograph bow body are respectively connected with a streamlined plate spring which is arranged below the pantograph bow body, the concave surface of the plate spring is provided with support blocks which are hinged with a pantograph framework. The pantograph bow of the invention meet small air resistance, has good shock resistance and contributes to current collection of trains in the process of operation, thus ensuring safe and stable operation of the trains.

Description

technical field [0001] The invention relates to a pantograph bow head used by an electrified railway locomotive. Background technique [0002] The electrified railway adopts electric traction. When the train is moving at high speed, it uses the pantograph to obtain electric energy from the catenary. In order to ensure the smooth and safe operation of the train, it is necessary to ensure that the power supply is absolutely reliable and uninterrupted, that is, the current receiving state of the pantograph is good. Otherwise it will affect the performance of high-speed train operation and electric drive system. [0003] In order to ensure good current receiving characteristics of the pantograph-catenary, the structure of the pantograph head is very critical. The structure of the existing pantograph bow head is as follows: two bow angles are riveted on both sides of the bow head body, a carbon slide plate is fixed on the bow head body, and the carbon slide plate is in contact w...

AI Technical Summary

Problems solved by technology

The deficiencies of the pantograph bow head of the existing structure are: the bow head body with a blunt (square) cross-section makes the bow head body suffer from large air resistance when the train is running, and the impact on the pantograph body is large; In addition, the bow head body and the bow head bracket are connected by a coil spring, the suspension damping of the bow head body is very small, and the attenuation of the impact by the coil spring is low, which makes the bow head body violently shake and vibrate, resulting in pantograph-catenary noise, which makes the bow head body The contact between the carbon slide plate and the contact wire is poor, and the current receiving state of the pantograph-catenary is poor; moreover, the bow head is the main source of the whole pantograph-catenary noise, and the pantograph-catenary noise has seriously restricted the increase of train speed

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