动车组用密接式车钩中心高度测量尺研发  

R&D of Tight Coupler Center-height Measuring Ruler for EMUs

作　　者：张雄鸣 ZHANG Xiongming

机构地区：[1]中国铁路上海局集团有限公司科学技术研究所,上海200070

出　　处：《铁道技术监督》2022年第3期12-15,共4页Railway Quality Control

摘　　要：为了测量动车组密接式车钩中心高度,研发动车组用密接式车钩中心高度测量尺。通过分析、研究目前动车组检修规程中车钩中心高度测量要求,确定动车组用车钩中心高度测量尺计量性能要求,评定测量尺扩展不确定度,评定结果满足计量要求。分别使用动车组用密接式车钩中心高度测量尺和既有测量设备(钢卷尺和水平尺),测量密接式动车组车钩中心高度。测量结果表明,与既有测量设备相比,使用动车组用密接式车钩中心高度测量尺测量密接式车钩中心高度,误差更小,准确度更高,测得的车钩中心高度值量值准确可靠。In order to measure the center-height of tight coupler of EMU,the measuring ruler for the center-height of tight coupler for EMU is developed.By analyzing and studying the measurement requirements of the coupler center-height in the current EMU maintenance regulations,the measurement performance requirements of the closely connected coupler center-height measuring ruler for EMU are determined,the expanded uncertainty of the measuring ruler is evaluated,and the evaluation results meet the measurement requirements.It takes an example of measuring the center-height of the close coupled coupler with the measuring ruler for the center-height of the EMU and the existing measuring equipment(steel tape and level ruler).The measurement results show that compared with the existing measurement equipment,using the tight coupler center-height measuring ruler for EMU occurs less error,higher accuracy,as well as the measured coupler center-height is accurate and reliable.

关 键 词：动车组 密接式车钩 车钩中心高度 测量尺 

分 类 号：TB921[一般工业技术—计量学] U260.341[机械工程—测试计量技术及仪器]