基于钢轨廓形的精确打磨方法研究  

Research on Precise Grinding Method Based on Rail Profile

作　　者：崔超强 谈桂宏 张晋西[1] CUI Chaoqiang;TAN Guihong;ZHANG Jinxi(Chongqing University of Technology,Chongqing 401320)

机构地区：[1]重庆理工大学,重庆401320

出　　处：《现代制造技术与装备》2023年第8期62-65,共4页Modern Manufacturing Technology and Equipment

摘　　要：钢轨打磨是通过降低钢轨表面粗糙度提高其疲劳强度和抗冲击性能的工艺。钢轨打磨技术由最初的人工打磨到机械打磨,再到现在的自动化打磨,打磨效率越来越高,精度也不断提高。由于现有的钢轨打磨方法无法保证打磨后的钢轨廓形达到预定要求,研究基于钢轨廓形的精确打磨方法十分必要。提出一种棍式打磨结构,通过控制进刀量使得钢轨的打磨力保持恒定。同时,对打磨过程进行仿真分析,通过研究打磨过程中砂轮水平速度和垂直位移的变化控制砂轮在钢轨的各个位置的打磨力,提升打磨质量。Rail grinding is a process to improve the fatigue strength and impact resistance of rail by changing its surface roughness.Rail grinding technology from the initial manual grniding to mechanical grinding,and then to the current automatic grinding,the grinding efficiency is getting higher and higher,the precision is constantly improving.Because the existing rail grinding method can not ensure that the rail profile after grinding can meet the predetermined requirements,an accurate grinding method based on rail profile is proposed.In this paper,a stick grinding structure is proposed,which keeps the grinding force of the rail constant by controlling the amount of feed.At the same time,the grinding process was simulated and analyzed,and the grinding force of the grinding wheel at each position of the rial was controlled by studying the changes of the horizontal speed and vertical displacement of the grinding wheel during the grinding process to improve the grinding quality.

关 键 词：钢轨廓形 自动化打磨 打磨力 仿真分析 

分 类 号：U216.424[交通运输工程—道路与铁道工程]