轮对几何参数及踏面缺陷光电检测方法  

Photoelectric measurement for geometrical parameters and tread defects of wheel set

作　　者：吴开华[1] 张建华[2] 严匡[1] 王瑞荣[1] 阚小洲[1] 

机构地区：[1]杭州电子科技大学自动化学院,浙江杭州310018 [2]嘉兴学院机电分院,浙江嘉兴314001

出　　处：《光电工程》2005年第7期48-51,共4页Opto-Electronic Engineering

基　　金：浙江省自然科学基金项目(Y104578);浙江省教育厅基金项目(20040446);浙江省科技厅科技计划项目

摘　　要：提出了一种基于光电检测技术的车辆轮对综合参数自动检测方法。运用精密激光位移传感、CCD及数字图像处理技术,实现了轮缘厚度、轮缘高度、车轮直径等尺寸参数的非接触自动检测;再结合精密运动控制,以及车轴和圆周方向的快速激光扫描,实现了踏面擦伤和剥离等缺陷参数的分类和识别。实验结果表明,基于上述测量方法的检测系统,其尺寸参数测量精度为0.2mm,擦伤深度测量精度为0.1mm,剥离长度测量精度为0.5mm,能满足车辆段修现场使用的要求。The paper presents an automatic method for comprehensive parameter measurement of wheel set based on photoelectric measurement technique. The method makes use of a precision laser displacement sensor, CCD and digital graphic processing technique to implement non-contact automatic measurement of geometrical parameters such as flange thickness, flange height and wheel diameter, etc. In combination with precision motion control and laser scanning along axle and circular direction, the method can classify and recognize the defects of scotching and flaking on wheel tread. A measurement system has been developed. Experimental results show that the accuracies for geometrical parameters, scotching depth and flaking length reach 0.2 mm, 0.1 mm and 0.5 mm, respectively. The repeatability and precision meet the demand of online wheel set maintenances.

关 键 词：光电检测 踏面缺陷 轮对 几何量测量 

分 类 号：TB92[一般工业技术—计量学] TN247[机械工程—测试计量技术及仪器]