基于轮轨匹配的小曲线轮缘异常磨耗机理与控制措施

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (18) : 127-133.

论文

许自强1，董孝卿1，彭中彦2，陈彪1

作者信息 +

Abnormal flange wear mechanism and control measures for small curve rails considering the wheel/rail matching

XU Ziqiang1，DONG Xiaoqing1，PENG Zhongyan2，CHEN Biao1

Author information +

文章历史 +

摘要

部分城际线路出现了轮缘异常快速磨耗问题，造成车轮频繁镟修，轮对提前报废，极大的增加运营成本，影响运营秩序。为了分析轮缘异常磨耗原因，对城际线路轮轨异常磨耗进行了现场调研，以实测轮轨型面为输入，采用轮轨几何匹配关系、轮轨磨耗分析等方法研究了轮缘异常磨耗机理，并通过现场测试与仿真分析相结合对轮缘减磨措施效果进行了分析。结果表明：在长期运用中个别线路的小曲线钢轨轨头型面严重偏磨，廓形偏离初始设计，车轮廓形与磨耗钢轨严重不匹配，轮缘出现快速磨耗，且轮缘外形与严重磨耗钢轨廓形接近，逐渐形成共形磨耗。通过现场测试分析发现：为了降低动车组轮缘磨耗速率，建议优先对钢轨打磨恢复钢轨设计廓形，同时采取轮轨润滑措施，可显著降低轮缘磨耗；其次采用车辆定期换端运行、轮轨型面优化等措施。
关键字：轮缘磨耗；现场试验；小曲线；轮轨匹配；减磨措施

Abstract

Some intercity lines suffered from abnormal rapid wheel flange wear, which not only caused frequent wheel re-profile, but also lead early scrapping of wheelsets, greatly increased the operation cost and affecting the operation order. In order to analyze the cause of abnormal wheel flange wear, the abnormal wear of wheel rail on intercity railway had investigated and tested, taking the measured wheel rail profile as the input, the mechanism of wheel flange abnormal wear was studied by using geometric matching, wheel rail contact analysis and other methods, and the control measures of wheel flange wear were studied through field test and simulation analysis. It is indicate that the rail head profile is seriously weakened and deviates from the design rail profile of small curve rail profile of individual lines in the long-term operation, the wheel and rail profile do not match and lead the wheel flange appears rapid wear, moreover, the profile of wheel flange is gradually close to that of severely worn rail and forming conformal wear. In order to reduce the wheel flange wear rate of the intercity EMU, it is suggested that priority should be given to rail grinding to restore rail design profile and wheel/rail lubrication measures;Next adopt regular turn around operation, wheel and rail profile optimization and other measures.
Keywords: wheel flange wear; field test, dynamic simulation; small curve; wheel-rail matching; antifriction measures

导出引用

许自强1，董孝卿1，彭中彦2，陈彪1. 基于轮轨匹配的小曲线轮缘异常磨耗机理与控制措施[J]. 振动与冲击, 2022, 41(18): 127-133

XU Ziqiang1，DONG Xiaoqing1，PENG Zhongyan2，CHEN Biao1. Abnormal flange wear mechanism and control measures for small curve rails considering the wheel/rail matching[J]. Journal of Vibration and Shock, 2022, 41(18): 127-133

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