摘要
根据对某地铁车辆车轮镟修现状的分析,车辆车轮以踏面磨耗为主,轮轨磨合稳定后踏面磨耗速率约为0.5 mm/(10万km);车轮易出现明显的不圆缺陷,径向跳动量幅值的增加速率约为0.05 mm/(10万km)。阐述了薄轮缘新踏面模板的生成过程。通过车轮磨耗全廓形曲线和薄轮缘踏面模板库的匹配计算,筛选出轮径镟修量最小的镟修最优方案。结合运营实际对镟修最优方案进行验证。验证结果表明:镟修最优方案的踏面算法提升了地铁车辆车轮镟修的精细化程度和经济性。
According to the on-site survey on wheel tread profile lathing status of a metro vehicle,the wheel wear area of metro vehicle mainly occurs on the tread,and the wear rate is 0.5 mm/100,000 km after the stable wearing period of wheel and rail.Wheels are prone to obvious non-circular defects during service,the increase rate of radial runout amplitude is about 0.05 mm/100,000 km.In this paper,the generation process of new tread template for thin wheel flange is elaborated.Through a matching calculation of the full profile curve of wheel wear and the template library of thin wheel flange tread,the best metro vehicle wheel profile lathing decision with minimal lathing is selected,which is verified through actual operation.The result shows that this tread lathing algorithm has improved the refinement degree and economy of metro vehicle wheel profile lathing.
作者
马进火
江亚男
陈俊栋
吴华丽
MA Jinhuo;JIANG Yanan;CHEN Jundong;WU Huali(Nanning Rail Transit Co.,Ltd.,530029,Nanning,China;不详)
出处
《城市轨道交通研究》
北大核心
2020年第8期162-164,168,共4页
Urban Mass Transit
基金
中铁科学研究院有限公司科技开发计划项目(KJ019-Z019-JS)。
关键词
地铁车辆
车轮
踏面
镟修
metro vehicles
wheel
tread
profile lathing
