广州地铁3号线列车进行深度维修过程中,主要涉及的扣修时间长的走行部部件维修包括齿轮箱轴承、轴箱轴承、轮饼。为了避免列车架大修出现扣修时间长的部件维修与架大修维修里程不匹配的现象,以广州地铁3号线北延段列车B2型车为例,对轮饼磨耗、齿轮箱轴承维修、轴箱轴承维修与架大修修程进行分析。 Guangzhou Metro Line 3 train deep maintenance process, the main part of the long repair deduction repair parts including gearbox bearings, axlebox bearings, wheel cakes. In order to avoid the overhaul of the train frame, there is a mismatch phenomenon between parts maintenance and overhaul maintenance mileage for a long time, taking the B2 type train of the North Extension of Guangzhou Metro Line 3 as an example, the axle wear, gearbox bearing maintenance, Box bearing repair and repair of the frame for analysis.