利用大型养路机械进行铁路线路维修作业是发展趋势 ,对于提高工务设备质量 ,确保铁路运输安全 ,增加运营效益具有重要意义。但是 ,由于大型养路机械外部作业环境恶劣 ,作业过程振动大、噪音高、冲击剧烈 ,导致该类设备的故障频繁出现 ,并且随着使用时间的延长 ,故障呈上升趋势 The use of large-scale maintenance machinery for maintenance of railway lines is the trend of development, to improve the quality of public works equipment, to ensure the safety of railway transport, increase operational efficiency is of great significance. However, due to the harsh operating environment of large-scale maintenance machinery, the vibration of the operation process is high, the noise is high and the impact is severe. As a result, the failure of such equipment frequently occurs and the failure is on the rise with the increase of the service time