钢轨打磨车砂轮实验室内磨削特性及其与现场使用效果的相关性分析  

Correlation Analysis Between Laboratory Test Results and On-site Performance of Grinding Wheels for Rail Grinding Vehicles

作　　者：吉媛 魏晓斐 贺春江 谢晓 韩欢热 高明 JI Yuan;WEI Xiaofei;HE Chunjiang;XIE Xiao;HAN Huanre;GAO Ming(Metals and Chemistry Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Large Road Maintenance Machinery Operation and Maintenance Section,China Railway Beijing Group Co.,Ltd.,Beijing 100071,China)

机构地区：[1]中国铁道科学研究院集团有限公司金属及化学研究所,北京100081 [2]中国铁路北京局集团有限公司北京大型养路机械运用检修段,北京100071

出　　处：《高速铁路新材料》2024年第2期71-75,共5页Advanced Materials of High Speed Railway

基　　金：中国铁道科学研究院集团有限公司基金项目(2021YJ231)。

摘　　要：利用钢轨打磨仿真试验台,对不同厂家、不同类型钢轨打磨车砂轮的磨削性能进行了测试,并结合其现场使用效果进行了相关性分析。结果表明:超硬复合砂轮的使用寿命是普通砂轮的2倍左右,但打磨时需要提供更大的打磨压力,也会产生更高的温升;打磨后工件温度的室内测试结果与现场使用效果具有一致性,试验后工件温度远超过150℃的砂轮,现场使用极有可能导致钢轨烧伤发蓝;砂轮平均打磨里程(使用寿命)s与打磨功率占比30%时的砂轮磨耗量W之间近似呈反比例函数的关系。The grinding properties of different manufacturers and different types of grinding wheels for rail grinding vehicles were tested by rail grinding simulation test bench,and the correlation analysis was carried out based on the on-site use effect.The results show that the service life of super-hard composite grinding wheel is about two times that of ordinary grinding wheel,but it needs to provide greater grinding pressure and produce higher temperature rise during grinding.The laboratory test results of the workpiece temperature after grinding have a consistent relationship with the on-site use effect.If the workpiece temperature exceeds 150℃after the test,the grinding wheel is very likely to cause rail burn and blue when used on-site.The relationship between the average grinding mileage of grinding wheel(service life)s and the grinding wheel wear W under 30%of the motor power is approximately an inverse proportional function.

关 键 词：钢轨打磨车砂轮 室内磨削性能 现场使用效果 相关性分析 

分 类 号：U216.65[交通运输工程—道路与铁道工程]