JX1030DS轻型载货汽车变速器设计毕业论文.doc

河 北 工 业 大 学 设 计 说 明 书 作 者： 高耸 学 号： 学 院： 机械工程学院 系(专业)： 车辆工程 题 目： JX1030DS轻型载货汽车变速器设计 指导者： 张小俊 副教授 评阅者： 2014 年 5 月 25 日 毕业设计（论文）中文摘要 题 目JX1030DS轻型载货汽车变速器设计 摘要： 自从汽车问世以后,汽车变速器就作为传动系统的重要部件起着很大作用。现在的汽车上广泛采用活塞式内燃机,内燃机本身只能产生范围较小的转矩及转速,然而汽车的复杂工况却要求汽车具有可以广泛变化的车速及牵引力。通过，改变发动机的转，起步、加速及克服各种道路阻碍等。Mat lab软件进行了优化，并且对涉及到的零部件（齿轮、轴、轴承）的结构及强度进行设计及校核，以及输出轴的模态分析。 关键字 变速器 传动比 优化设计 模态分析 毕业设计（论文）外文摘要 Title The Design Of JX1030DS Light Truck Transmission Abstract Born from the car, automotive transmission plays a vital role in the automotive driveline. Automotive piston type internal combustion engine is widely used on cars, which has a small range of variation of torque and speed. Because of the use of complex conditions, vehicle traction and the vehicle speed should be varied within a relatively wide range. By changing the gear ratio, the engine crankshaft torque can be changed, adapting the start, acceleration, driving and other different driving conditions which need to overcome a variety of roads ,which the drive wheel traction and speed of different requirements. With the rapid development of technology, people are increasingly demanding high performance cars, car performance, service life, energy consumption, noise and vibration, etc. depends largely on the performance of the transmission, it is necessary to attach importance to the study of the transmission. This paper describes the transmission’s working principle, structure, transmission programs. It has determined the program through the understanding of the design task. The transmission ratio has been optimized by Mat lab software, and on the involved parts (gears, shafts, bearings) structural design and checking. Keywords： Transmission Driv