现阶段铁路车辆检修中轴承外检工序一直缺乏较为现代化检测手段,主要采用人工压转轴承,并辅以手摸和耳听的方式对轴承进行故障检查,本文主要设计采用液压传动和自动控制技术,实现轮对轴承的自动加载加速,模拟轴承运行状态功能,使轴承不退卸检查实现智能化和自动化,辅助轴承工对轴承故障进行准确判别,提高车辆检修质量。 At this stage, there is a lack of more modern testing methods for bearing inspection procedures in railway vehicle overhauls. The main method is to use manual compression bearings with hand-touch and ear-hearing methods to inspect the bearings. This paper mainly designs hydraulic transmission and automatic control technology , To achieve automatic loading wheel acceleration, analog bearing operating state function, so that the bearing does not unload inspection to achieve intelligence and automation, auxiliary bearing workers to accurately identify the bearing failure, improve the quality of vehicle maintenance.