2021年度轻型商用车传动轴及万向节的毕业设计（机械CAD图纸）.doc

摘　　要
汽车万向传动轴是由传动轴、 万向节两个关键部件联接而成, 在长轴距车辆中还要加装中间支承。 万向传动轴关键用于工作过程中相对位置不停改变两根轴间传输转矩和旋转运动。 在本世纪初万向节和传动轴发明和使用, 在汽车工业发展中起到了极其关键作用。 伴随汽车工业发展, 现代汽车对万向节和传动轴效率、 强度、 耐久性和噪声等性能方面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)万向传动装置作为设计原型。 在给定整车关键技术参数和发动机、 变速器等关键总成安装位置确定条件下, 对整车结构进行了分析, 确定了传动轴部署方案, 采取两轴三万向节带中间支承部署形式。 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情况及要求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, so that the assembly can be used in normal situations and the life within no failure.

Keywords: Transmission shaft; Cardin joint; Middle supporting; Design ; Verification
目　　录
摘要 I
Abstract II
第1章 绪论 1
选题目标和意义 1
中国外研究现实状况、 发展趋势 1
研究内容及方法 2
传