出口窄轨机车异步牵引电机内锥轴与小齿轮装配技术研究

摘要

Due to axial space limit, the exported narrow gauge locomotive asynchronous traction motor preferred drive structure of inner cone shafts. Because the inner cone shaft press is closely related to the installation of the motor drive bearing, it is necessary to take into account the factors such as pressure intake, bearing interference fit, installation of clearance and so on. Through the verification and comprehensive analysis of inner cone shaft and small gear compression process in the field, the optimum indentation quantity of the small gear and the inner cone shaft is determined, which not only meets the requirements of transmission torque of traction motor, but also meets the interference fit and bearing clearance of the inner ring.%出口窄轨机车异步牵引电机因轴向空间限制优先选用内锥轴小齿轮驱动结构.因内锥轴压装与电机驱动端轴承的安装密切相关,因此需要兼顾压入量、轴承过盈配合、安装游隙等因素.通过现场内锥轴与小齿轮压装工艺验证和综合分析,确定小齿轮与内锥轴配合的最佳压入量,既能满足牵引电机传动扭矩的要求,又能满足轴承内圈的过盈配合和轴承安装游隙.