• CN:11-2187/TH
  • ISSN:0577-6686

›› 2002, Vol. 38 ›› Issue (2): 120-122.

• 论文 • 上一篇    下一篇

车轮踏面擦伤动态定量测量新方法

冯其波;赵雁;崔建英   

  1. 北方交通大学理学院
  • 发布日期:2002-02-15

NEW DYNAMIC METHOD TO QUANTITATIVELY MEASURE WHEEL FLATS OF TRAINS

Feng Qibo;Zhao Yan;Cui Jianying   

  1. Northern Jiaotong University
  • Published:2002-02-15

摘要: 车轮踏面擦伤是危及列车运行安全的主要原因之一。如何准确测量其大小是高速和重载列车发展中必须首先要解决的关键测量问题。提出一种新的车轮擦伤动态测量方法,不仅能实现对踏面擦伤和磨损的定量测量,同时能克服已有技术测量不能定量、测量结果受外界很多因素影响的缺点。测量系统主要由平行四边形机构、传感器、数据采集与处理等部分组成。现场试验表明:当列车速度低于15km·h-1,系统的测量误差小于0.2mm。

关键词: 擦伤, 动态测量, 轮对, 磨损

Abstract: Wheel flats on any tread of trains are one of the main causes that threaten safety of trains.How to measure correctly and quantitatively values of wheel flats is a key problem that must be solved in the development of high-speed and heavy load trains.Currently,there are several methods to measure wheel flats,however,almost all these methods are qualitative.Moreover,the measurement results got by these methods are greatly influenced by other factors such as the speed,the weight of the train.A totally new method to measure dynamically and quantitatively wheel flats is put forward in this paper,and both the values of wheel flats and abrasion in any tread of trains can be got when a train passes through the measuring device.The measurement system mainly consists of several sets of parallelogram mechanisms,displacement transducers and data collecting and processing system,and it was installed in the railway site.Through a lot of in-situ experiments,the accuracy of about 0.2 mm in the measurement of both wheel flat and abrasion can be obtained by the system when the moving speed of a train is less than 15 km/h.

Key words: Abrasion, Dynamic measurement Train wheels, Wheel flat

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