重型商用车驱动桥设计翻译.doc

华南理工大学广州汽车学院 本科生毕业设计（论文）翻译 英文原文名 DRIVE AXLE ASSEMBLIES 中文译名 驱动桥 系 别 汽车工程系 专业班级 车辆工程 学生姓名 陈威 指导教师 上官文斌 填表日期 2011-5-19 二〇一 一 年 五 月 英文原文版出处： Dirk Spindler Georg von Petery INA-Schaeffler KG. Angular Contact Ball Bearings for a Rear Axle Differential.SAE ，2003DRIVE AXLE ASSEMBLIES After studying this chapter, you will be able to: ■ Explain the construction of different types of drive axle assemblies. ■List the parts of various drive axles. ■ Compare the differences between a rear wheel and front wheel drive axle assembly. ■Describe the operating principles of drive axle assemblies. Drive axle assemblies have several important functions. They must hold the wheels on, keep them upright, allow them to be turned (in front, on four-wheel drive and front-wheel drive vehicles) and propel the wheels forward or backward. They must drive the wheels in such a manner that one can turn faster than the other, yet both must receive torque. Drive axle assemblies must absorb the driving force of the wheels, and transmit it to the frame through springs, control rods, etc. The axle assembly provides an anchorage for springs, supports the weight of the vehicle and forms the foundation upon which the wheel brakes are mounted. Obviously, the axle assemblies must be well constructed, using quality materials. HOUSING The axle housing is usually made of stamped steel parts welded together. Or, the center section of the housing may be made of cast steel. Two basic types have been used: the BANJO type housing (in wide use) and the SPLIT housing (little used) consisting of two or more pieces. AXLES Two steel axles are placed inside the housing. Their inner ends almost touch; and, in some cases, they do touch. The outer ends protrude out of the housing and form a base upon which the wheels, hubs, etc. are attached. The inner end