轻型商用车传动轴及万向节设计.doc

PAGE 黑 龙 江 工 程 学 院 二○○九年六月 The Graduation Design for Bachelors Degree Design of Light Commercial Vehicle Transmission Shaft and Cardan Joint Candidate：Tian Yu Specialty ：Vehicle Engineering Class：B05-18 Supervisor：Associate Prof. Su Qingyuan Heilongjiang Institute of Technology 2009-06·Harbin 本科生毕业设计 PAGE II 摘　　要 汽车的万向传动轴是由传动轴、万向节两个主要部件联接而成，在长轴距的车辆中还要加装中间支承。万向传动轴主要用于工作过程中相对位置不断改变的两根轴间传递转矩和旋转运动。在本世纪初万向节与传动轴的发明与使用，在汽车工业的发展中起到了极其重要的作用。随着汽车工业的发展，现代汽车对万向节与传动轴的效率、强度、耐久性和噪声等性能方面的设计及计算校核要求也越来越严格。本毕业设计将依据现有生产企业在生产车型(CA1041)的万向传动装置作为设计原型。在给定整车主要技术参数以及发动机、变速器等主要总成安装位置确定的条件下，对整车结构进行了分析，确定了传动轴布置方案，采用两轴三万向节带中间支承的布置形式。在确定了传动方案后，对传动轴、万向节总成、中间支承总成进行设计，使该总成能够在正常使用的情况及规定的使用寿命内不发生失效。 关键字：传动轴；万向节；中间支承；设计；校核 ABSTRACT The universal drive shaft of automotive is composed of transmission shaft and cardin joint. The main function of the universal drive shaft is to transmitting torque and rotation movement between two shafts whose relative position is variation in the working process. At the beginning of this century the transmission shaft and cardin joint play an important role in the development of automobile industry. As the development of automobile industry, the automobile demand that the design and verification of transmission shaft and cardin join stricter in the efficiency, intension, durability and noise performance. This graduation design chooses existing production business enterprise of basis is producing the car type(CA1041) of ten thousand to spread to move to equip the conduct and actions design prototype. Under the conditions of the main technical parameters of the given vehicle, installation location of engine, transmission and other major assembly are determined , the structure of the vehicle is analysised, the transmission shaft layout program is determined. Two shaft-three cardin joints is adapted. After determining the transmission options, the right drive shaft and universal joint assembly, intermediate bearing assembly is designed, s