Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive

Abstract

The invention discloses a pantograph head structure. A slide of an existing strip integral bowhead is divided into a purity of slide blocks connected with each other by a chain plate, and each slide block is subjected to elastic connection with a pantograph support through a support spring. When a contact wire slides and contacts with the slide of the strip integral bowhead, only one slide block is forced to move, and the others keep still to remain the level of the pantograph head body. When the slide block contacts and slides along the wire in a high speed, the support springs can restore the good contact between the slide block and the wire instantly, even if the slide block plate bounces a little for the wire or the hard spots on the slide, so that the flow performance and the follow-up performance of the sliding electrical contact are greatly improved and the offline rate of the pantograph-contact line is reduced.

Description

technical field [0001] The invention relates to a sliding electric contact of an electrified railway locomotive, in particular to a pantograph bow head structure capable of reducing the off-line rate of the electric locomotive sliding electric contact pantograph-catenary. Background technique [0002] In the electrified railway, when the pantograph of an electric locomotive slides along the contact wire, it will vibrate up and down due to the different stiffness of the wire, the unevenness of the wire or the continuous change of the catenary pressure, resulting in the phenomenon of instantaneous pantograph-catenary offline. Off-line arc (a high-frequency oscillating pulse current) is the main source of EMI noise in electrified railways. The electromagnetic noise will cause electromagnetic interference to various sensors, communication instruments and other electromagnetic sensitive equipment of the train, and in severe cases, it will directly threaten the driving safety and ...

AI Technical Summary

Problems solved by technology

When the bow head of this structure slides along the contact wire at high speed, the whole pantograph must move up and down together with the bow head slide plate, the moving mass and inertia are large, and the followability is poor. With the increase of train speed, the off-line rate is also corresponding Increase, the above-mentioned electromagnetic interference noise caused by it increases, making it one of the important factors that interfere with the communication signals of electrified high-speed railways

Images