动车组牵引电机用轴承检修周期间隔延长的分析

Analysis of Extension of Overhaul Cycle Interval of Traction Motor Bearing for CRH Trains

介绍了CRH2与CRH380A型动车组牵引电机轴承现行检修规程,对轴承润滑油脂加注量和周期进行理论分析,并各抽选两列动车组进行长期跟踪验证试验,通过考察补充油脂方式对延长轴承运行的能力,对牵引电机轴承检修周期延长至120万km进行了可行性分析。

This paper introduces current maintenance regulations on traction motor bearings of CRH2 EMUs and China Railways CRH380A, and states the theoretical analysis of bearing lubrication oil filling quantity and eyclicity based on long-term tracking verification and practical experiment for the selected two columns of EMUs, and presents the feasibility analysis of overhaul cycle of traction motor bearing extending to 1.2 million kilometers by investigating the influence of oil supplement methods to prolong beating＇s operation ability.