摘要
为解决目前高铁道岔钢轨打磨作业过程中存在的依靠经验选择打磨模式的问题,以CMC-16型道岔打磨车为研究对象,建立钢轨廓形和砂轮的参数化表达式,通过数值计算模拟钢轨打磨过程,分析岔磨车常用9种打磨模式的角度分布和作用结果;在此基础上,以实现理论打磨后钢轨廓形与目标廓形最佳匹配为设计原则,提出一种岔磨车钢轨打磨方案设计的改进方法,并通过现场试验加以验证。结果表明:该方法以打磨车现有模式为基础设计打磨廓形,现场试验中实际打磨后廓形与理论打磨后廓形相比较,最大打磨量差值为0.16 mm,且在-10°~55°的打磨范围内廓形基本重合,打磨效果较好,能够避免打磨模式不可控和过于依靠人为经验的问题;通过该方法设计得到的打磨方案由每一遍作业的打磨模式序号组成,可直接作为打磨车计算机控制单元的输入参数,更为贴合现场实际应用。
To solve the problem of choosing grinding mode by experience in the rail grinding process of high-speed railway turnout,the parametric expressions of rail profile and grinding wheel were established,taking the CMC-16 turnout grinding vehicle as the research object.The rail grinding process was simulated using Matlab numerical calculation,and the angle distribution and action results of nine grinding modes commonly used in turnout grinding vehicles were analyzed.Based on this,with the design principle of realizing the best match between the theoretical grinding rail profile and the target one,an improved method of rail grinding scheme of turnout grinding vehicle was proposed.The results show that the proposed method is based on the common mode of grinding vehicle.During field trials,the maximum difference in grinding amount between the actual profile and theoretical profile was 0.16 mm,within the grinding range of-10°to 55°.The profiles were essentially identical,indicating that the method can avoid the problems of uncontrollable grinding mode and over-reliance on human experience.The grinding scheme designed by this method consists of the grinding mode serial number of each operation,which can be directly input to the operators of the field grinding vehicle,and is more suitable for field practical application.
作者
许玉德
王章
胡猛
吴琰超
XU Yude;WANG Zhang;HU Meng;WU Yanchao(College of Transportation Engineering,Tongji University,Shanghai 201804,China;East China Survey and Design Institute Co.,Ltd.,of China Electric Power Construction Group,Hangzhou 311122,China)
出处
《同济大学学报(自然科学版)》
北大核心
2025年第8期1269-1275,共7页
Journal of Tongji University:Natural Science
基金
国能铁路装备有限责任公司科技研究开发项目(GJNY-21-121)。
关键词
高速铁路
钢轨打磨
岔磨车
数值模拟
打磨模式
high-speed railway
rail grinding
turnout grinding vehicle
numerical simulation
grinding mode
