【摘要】 以钢轨圆盘代替钢轨,设计一种模拟钢轨被动打磨方式的实验平台,研究被动磨削方式下磨削压力和磨削速度对磨削力、磨削温度、磨削效率及钢轨表面粗糙度的影响。实验结果表明:在60～80 km/h范围内,随磨削速度增大,切向磨削力、表面粗糙度减小,磨削温度升高、磨削效率增大;在120～320 N范围内,随磨削压力增大,磨削温度升高、切向磨削力增大、磨削效率增大、表面质量下降。更多还原

【Abstract】 The influence of pressure and speed on some grinding performance of passive rail grinding, namely the force, the temperature, the efficiency and the rail surface roughness, was studied on a test platform simulating passive grinding by replacing normal rail with rail disk. The results show that the increase of grinding speed in the area of 60 to 80 km/h, results in the decrease of grinding force and surface roughness and the increase of grinding temperature and grinding efficiency. It is also found that the increase of grinding pressure, from 120 N to 320 N, leads to higher temperature, larger force, higher efficiency and worse surface quality.更多还原