Subway vehicle pantograph carbon slide plate abrasion estimation method and service life prediction method

Abstract

The invention provides a subway vehicle pantograph carbon slide plate abrasion estimation method and a service life prediction method, which are used for solving the problem that the carbon slide plate abrasion cannot be accurately estimated in the prior art. The invention discloses a wear estimation method and a life prediction method. The method comprises the following steps: calculating the abrasion quantities of the carbon slide plate at different positions within a certain running mileage by combining the arrangement mode of a carbon slide plate abrasion rate curve and a contact line to obtain an abrasion profile transversely distributed along the carbon slide plate, calculating and visualizing the abrasion profile distribution of the carbon slide plate, and further predicting the service life of the carbon slide plate. According to the invention, the wear degree of the carbon slide plate is pre-judged; The carbon slide plate grinding and replacing device has the advantages that targeted carbon slide plate grinding or replacing suggestions are provided for maintenance departments, time and economic cost are reduced, areas with severe abrasion of the carbon slide plate are obtained, corresponding technical adjustment is performed through cause analysis, grooves are prevented from being formed in the carbon slide plate, accordingly, the safety of bow net operation is improved, and certain economic benefits and social benefits are achieved.

Description

technical field [0001] The invention belongs to the field of urban rail transit, and in particular relates to a method for estimating the abrasion of a carbon slide plate of a pantograph of a subway vehicle and a method for predicting its life. Background technique [0002] With the continuous development of the city, rail transit plays an increasingly important role in the normal operation of the city, and safety issues are an important aspect of rail transit. The subway is an important urban rail transit tool, and the traction system of the subway provides power and braking force for the operation of the subway vehicles. When the subway is running, the current enters the motor from the pantograph, and then flows out from the track connected to the ground grid, so as to drive the vehicle. The carbon slide plate of the pantograph is a key component of the subway vehicle. With the expansion of the city, the operating environment of the subway is becoming more and more comple...

AI Technical Summary

Problems solved by technology

[0005] In order to improve the safety and stability of the operation of subway vehicles and overcome the problem that the wear of the carbon slide plate of the pantograph of the subway vehicle cannot be accurately judged in the prior art, the invention provides a method for estimating the wear of the carbon slide plate of the pantograph of the subway vehicle And the life prediction method, combined with the layout of the contact line, calculate the wear amount of the carbon slide at different positions for a certain distance, and obtain the wear profile along the lateral distribution of the carbon slide, so as to formulate the use and maintenance strategy of the pantograph carbon slide Provide reference, improve the economic benefits of subway operation, and ensure the safe and reliable operation of subway vehicles

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