为满足重载运输需要和大幅提高货运运输效益,我国铁路在既有线上开行的通用货车轴重不断加大,货车轴重提高以后,已经超出既有驼峰设备设计规范及标准,给减速器的维修带来了很大的难度。对既有的减速器在重载条件下的常见问题进行深化分析,为现有减速器适应大轴重重载车辆,保证减速器的性能和可靠性,提供经验。 In order to meet the needs of heavy-haulage transportation and substantially increase the efficiency of freight transportation, the general-purpose freight cars with built-in lines in China’s railways have increasingly heavy shaft weights. After the axle load has been raised, the hull specifications and standards for existing gear housings have been exceeded Maintenance has brought great difficulty. Deepening the common problems of existing retarders under heavy load conditions provides experience for adapting existing retarders to heavy-axle heavy-haul vehicles and assuring the performance and reliability of retarders.