A pantograph bow head

Abstract

The present application discloses a pantograph head, comprising: a support structure; a roller structure capable of being in contact with a contact line to achieve conduction with the contact line and capable of rolling along the axial direction of the contact line; connection The roller structure and the support structure, and a connecting structure capable of moving the roller structure on the support structure along the radial direction of the contact line. The pantograph head with the above structure avoids the sliding friction between the sliding plate of the pantograph head and the contact line in both the horizontal and vertical directions, which significantly improves the current receiving effect between the pantograph and the mesh, and also facilitates maintenance and repair. Reduced maintenance costs.

Description

technical field [0001] The invention relates to the technical field of electric traction locomotives, in particular to a pantograph head of electric traction locomotives. Background technique [0002] At present, the pantograph-catenary current collection method of electric traction locomotives (including subways, trams, etc.) is to realize the current collection through the sliding contact between the sliding plate of the pantograph head and the contact wire. The catenary is a fixed device, the locomotive is a mobile device, and the pantograph is fixed on the locomotive. Due to the movement of the locomotive, there is always a longitudinal (traveling direction of the locomotive, which is also the axial direction of the contact line) relative to the contact line of the sliding plate and the catenary. Sliding, at the same time, due to the influence of the locomotive’s lateral (mainly referring to the left and right direction of the locomotive, but also the radial direction of...

AI Technical Summary

Problems solved by technology

The local unevenness of the skateboard intensifies the dynamic effect between the pantograph and catenary, that is, when the skateboard and the contact line slide relative to each other, strong impact phenomena such as jumping off-line between the pantograph and catenary are likely to occur at the local concave and convex defects of the skateboard, resulting in arc discharge between the pantograph and catenary. As a result, arcing and arcing wear are caused. Under the dual effects of mechanical friction and wear and arcing and arcing wear, it will aggravate the local unevenness of the skateboard and the wear of the contact line and the skateboard, so that the pantograph-catenary flow quality drops sharply, and the pantograph-catenary flow relationship deterioration

[0004] The application experience of the skateboard shows that the mechanical friction and wear between the pantograph and catenary accounts for 20% of the wear of the skateboard, while the arcing wear between the pantograph and catenary accounts for 80% of the wear of the skateboard. For subway lines using rigid catenary, every other The skateboard needs to be polished every month, and the skateboard needs to be replaced every 6 months, which causes great inconvenience to the operation, maintenance and overhaul of the locomotive, and leads to high maintenance costs

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