Method of applying contact pressure and friction force dynamic detection device

Abstract

A contact pressure and friction force dynamic detection device is a mechanical device used for dynamically detecting the contact pressure and friction force between a pantograph slide plate and a contact line when a locomotive runs at a high speed. The contact pressure and friction force dynamic detection device is fixed between the pantograph slide plate and a bow, two supporting mechanisms of the same structure are arranged at the left end and the right end of the slide plate and are of an isosceles triangle structure, the intersection point of the extension lines of the two edges, where pressure sensors are installed, of each supporting mechanism is the contact point of a pantograph and the slide plate, the bottom edge of each supporting mechanism is provided with an acceleration sensor, and the sensors are connected with a data collection system. The plane formed by the three sensors of each supporting mechanism is the same as the running direction of the locomotive, action force between bow nets is divided in two directions through the triangle structure, bow net contact pressure in the vertical direction and friction force in the horizontal direction can be achieved through data processing, and accelerated speed provided by the acceleration sensors can effectively correct a value of contact pressure. The contact pressure and friction force dynamic detection device is suitable for being used when a high-speed train runs as a whole, simple in structure, accurate in measurement and good in product integrity.

Description

technical field [0001] The contact pressure and friction dynamic detection device is a mechanical device used to dynamically detect the contact pressure and friction between the pantograph and the contact wire when the locomotive is working. Background technique [0002] With the development of high-speed railway, pantograph-catenary relationship has attracted more and more attention. The contact pressure between the pantograph and the catenary directly affects the pantograph-catenary current intake and the wear of the pantograph slide and contact wire. When the contact pressure is too high, it will increase the abnormal wear between the pantograph-catenary and shorten its service life; If it is small, it will lead to intermittent power supply due to poor contact, causing sparks or arcs. In severe cases, it will burn the contact wire. It should be controlled and measured as a very key indicator. In order to study the relationship between pantograph and net, Germany, Japan, ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome that the existing contact pressure measuring device cannot accurately measure the dynamic value during the running of a high-speed locomotive, and proposes a method that can not only accurately measure the dynamic contact pressure between pantograph and catenary, but also accurately measure the contact pressure between the pantograph slide plate and the contact pressure. The mechanical structure of the friction force between the pair of friction pairs

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