轨道车辆轮对踏面面型检测方法研究

Detection Method of Wheel Set Tread Profile of Rail Vehicle

轮对是列车的重要部件,轮对踏面的关键尺寸参数是否超限关乎车辆行驶安全,因此必须定期对列车轮对踏面磨损状况进行检测。提出一种测量轮对踏面面型的方法,包括测量系统设计以及改进的灰度中心算法处理。在此基础上,建立模拟轮对踏面检测实验系统,对轮对踏面面型测量的精度进行了实验研究,在踏面分别贴上厚度分别为1~10 mm的块规,测量均方差在±0.1 mm以内,其中1~5 mm块规的均方差小于0.05 mm,能够满足工业测量的高精度要求。

Wheel set is an important part of the train,whether the key parameters of wheel set tread exceed the limit is related to vehicle driving safety. Therefore,it is necessary to regularly detect the wear condition of the train wheel set. A method for measuring wheel set tread profile is proposed,in which the design of measurement system and improved gray center algorithm are included. On this basis,a simulation wheel set tread detection experimental system is established to test the result. It is shown by the experiments that the mean square error(MSE)of the 1~10 mm block gauge is within ±0.1mm,and MSE of the 1~5 mm is less than 0.05 mm,which can meet the high precision requirements of industrial measurement.