Anti-icing multi-roller rigid overhead current-feed device

Abstract

The invention relates to an anti-icing multi-roller rigid overhead current-feed device. The device is composed of a T-shaped rigid overhead line system and a de-icing current-feed mechanism, the rigidoverhead line system is formed by correspondingly fixing a current-feed rail with T-shaped cross section on a plurality of U-shaped overall supports through insulators, the de-icing current-feed mechanism is composed of a lower de-icing blade, a front side de-icing blade, a rear side de-icing blade and two or more current-feed cylinders, wherein the left side and right side of the upper surface of the lower de-icing blade are provided with the front side de-icing blade and the rear side de-icing blade respectively which are symmetrical in shape and consistent in structure, a roller body of each current-feed roller is formed by fixing two bearings on a main shaft, the lower parts of the main shafts are movably inserted into limiting rings, limiting shafts fixed on the bottom surfaces of the main shafts form the rolling fit with the bottom surfaces of blind holes of the limiting rings, and the two sides of the main shafts of the rollers are correspondingly provided with elastic mechanisms. According to the anti-icing multi-roller rigid overhead current-feed device, ice coating on the overhead line system can be effectively eliminated in real time, and the device has the advantage ofensuring stable current feed of a pantograph.

Description

technical field [0001] The invention relates to the technical field of electrified railways, in particular to a novel anti-icing multi-roller rigid contact current receiving device. Background technique [0002] Catenary, as a unique structure of electrified railway, provides traction current for electric locomotives and ensures the reliable operation of electric locomotives. The overhead catenary is divided into rigid catenary and flexible catenary. In special working conditions such as tunnels, a rigid catenary structure is often used. If the air humidity in the tunnel is high and the temperature in the tunnel is low, the rigid catenary will form. icing. If there is water seepage in the tunnel, the water will flow through the rigid catenary, and ice will also form in low temperature climates, and the traditional "I" structure will make the rigid catenary form larger ice cubes when the ice is severe, and the rigid contact The icing of the grid will cause poor contact with...

AI Technical Summary

Problems solved by technology

[0004] At present, the construction of high-speed railways in various regions is on the rise. Some high-speed railway lines will inevitably pass through low-temperature, high-humidity, high-altitude and other areas. In these low-temperature and ice-covered tunnels, if the traditional rigid catenary flow collection method is still used, it will be difficult to ensure the reliable flow collection of the EMU

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