Rigidity and flexibility combined pantograph slide plate device

Abstract

The invention discloses a rigidity and flexibility combined pantograph slide plate device. The rigidity and flexibility combined pantograph slide plate device is formed by adding a flexible slide plate on the basis of a traditional rigid slide plate. The traditional rigid slide plate and the flexible slide plate are assembled on the same pantograph head. The flexible slide plate is made from a flexible conductive material. Good contact between the flexible slide plate and a contact net can be achieved under small contact force, and therefore the contact resistance of the slide plates is reduced, and electric heating ablation caused when local temperature is too high can be reduced. Contact between the flexible slide plate and the contact net can be kept at any time even in oscillation caused by a pantograph net, the offline possibility is reduced, and therefore electric arcs can be greatly reduced, and electric abrasion between the slide plates and the contact net is reduced. Meanwhile, the number of conductive spots is greatly increased due to the concave contact face of the flexible slide plate, the pressure of contact between the flexible slide plate and the pantograph net can be remarkably reduced compared with the traditional rigid slide plate, and therefore mechanical friction and loss of the rigid slide plate are reduced, the service life of the slide plates can be greatly prolonged, and maintenance and replacement cost is reduced. The rigidity and flexibility combined pantograph slide plate device is suitable for subways, light rails and other low-speed electric automobiles and is also suitable for high-speed trains.

Description

technical field [0001] The invention belongs to the technical field of pantograph devices for rail vehicles including subways, light rails, maglev trains, high-speed electric locomotives and high-speed EMUs, and in particular relates to a rigid-flexible pantograph slide device. Background technique [0002] The pantograph is the electrical equipment used by the electric traction locomotive to obtain electric energy from the catenary, and is installed on the roof of the locomotive or motor car through insulators. When the pantograph is raised, its sliding plate is in contact with the catenary wire, and receives current and electricity from the catenary wire for traction locomotives and other electrical equipment. The most commonly used single-arm pantograph is composed of a slide plate, an upper frame, a lower arm rod, a bottom frame, a bow spring, a transmission cylinder, and a support insulator, among which the slide plate is one of the most important parts of the pantograp...

AI Technical Summary

Problems solved by technology

[0006] There are many factors that lead to arcing, but in the end they all come down to the contact resistance between the skateboard and the catenary. Excessive contact resistance and drastic changes are inherent defects in the current method of receiving electricity by sliding friction between the rigid skateboard of the pantograph and the catenary.

Although researchers have taken various measures for this purpose, such as reducing contact resistance by developing low-resistivity slide materials, such as metal-impregnated carbon slides and powder metallurgy slides, the number of conductive spots on the pantograph-catenary contact surface cannot be effectively increased, so only The effect of reducing the arc by improving the material of the skateboard is not very satisfactory

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