介绍了基于上海轨道交通1号线“增扩编”车辆的特点和要求研制的车辆转向架齿轮箱。分别从箱体设计、牵引齿轮的设计、轴承的选用、润滑和密封系统的设计等方面,介绍了设计的思想、实现的方法和获得的成效。经型式试验和装车使用情况验证,齿轮箱密封良好、润滑充分、运行平稳,总体性能良好,满足列车使用要求。 The gear box of the vehicle bogie based on the characteristics and requirements of the Shanghai Metro Line 1 “increase and expansion” was introduced. From the aspects of box design, traction gear design, bearing selection, lubrication and seal system design, the design ideas, methods and benefits are introduced. The type test and the use of loading verified that the gear box sealed well, fully lubricated, smooth operation, the overall performance is good, to meet the requirements of train use.