Development of GJ-4G track inspection car

Shengwei Ren; Shiping Gu; Guiyang Xu; Zhan Gao; Qibo Feng

doi:10.1117/12.885888

28 December 2010 Development of GJ-4G track inspection car

Shengwei Ren, Shiping Gu, Guiyang Xu, Zhan Gao, Qibo Feng

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75440Q (2010) https://doi.org/10.1117/12.885888
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

Rail track geometric parameters, such as gage, level, twist, longitudinal irregularity, and alignment irregularity, etc., have much influence on the operation safety of train vehicles. GJ-4 track inspection car is a large scale dynamic measurement equipment for measuring track geometric parameters precisely and efficiently. It is useful to find track defects, guide track maintenance, and eliminate potential safety problems of track. However the device of measuring gage and alignment irregularity of this track inspection car is installed on a hanging beam, which is not suitable for rapid inspection and has higher failure rate. Hence this sub-system is replaced by the laser-camera method. The rebuild car is named GJ-4G. It greatly eliminates the measurement errors caused by the existing subsystem and increases the measuring stability. The feasibility of this track inspection car has been proven by the practical experiments carried out by Beijing Railway Administration.

Citation Download Citation

Shengwei Ren, Shiping Gu, Guiyang Xu, Zhan Gao, and Qibo Feng "Development of GJ-4G track inspection car", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75440Q (28 December 2010); https://doi.org/10.1117/12.885888

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