轿车变速器毕业设计.doc

附22： 2013届 　 分 类 号： 　　　　　　　　　　　　　　　　　 单位代码：10452 毕业论文（设计） 帝豪轿车5档变速器设计 　　　　　　 姓 名　 　　　　 　　　　 　　　　　　 学 号　　　 　　　　　　　年 级　 　　 　　　　　　　专 业　　　　 车辆工程 　　　　　　　系　（院）　　　 汽车学院 　　　　　　　指导教师　 　年 　月 　日摘 要 随着我国汽车行业的迅猛发展，人们对汽车的需求也越来越高。回顾变速器技术的发展可以清楚地知道, 变速器作为汽车传动系统的重要组成部分, 其技术的发展是衡量汽车技术水平的一项重要依据。如果说发动机是汽车的心脏，那么变速器就是汽车的灵魂。 变速器是完成传动系任务的重要部件，也是决定整车性能的主要部件之一。变速器的设计水平对汽车的动力性、燃油经济性、换挡操纵的可靠性与轻便性、传动平稳性与效率等都有直接的影响。随着汽车工业的发展,轿车变速器的设计趋势为增大变速器传递功率与重量之比,并要求变速器具有较小的尺寸和良好性能。本文阐述了发动机的选择、变速器方案的确定、变速器设计、变速器同步器设计、变速器箱体设计。在给定发动机排量、最高车速、最大扭矩等条件下,着重对变速器齿轮的结构参数、轴的结构尺寸等进行设计计算。 关键词：轿车;变速器；齿轮；同步器；设计；结构 Abstract Along with our country automobile profession rapid development，the people are also g- etting higher and higher to automobiles demand. Recalling the development of transmission technology can be clearly aware that the total transmission as a motor drive system are integral parts of its technology, is a measure of the level of automotive technology to be a general basis. if the heart of the engine, then the transmission is the car Soul. Transmission is the important part of drivetrain components to complete the tasks. as well as one of the main factor to decide the whole performance of vehicle. The standards of Transmission designing can directly impact the vehicle dynamics, fuel economy, the reliability and portability of shifting, the smoothness and efficiency of Transmiting. Along with the development of the automobile industry, the trend of car transmission designing is to increase its transmission power and decrese its weight ,and hope have smaller size and excellent performance. This thesis are expounded the engine choice, transmission solution, transmission design , design for transmission the synchronizer, design for transmission the first axis ,design for transmission box.In conditions that knowing the engine displacement ，s