毕业设计(论文)-EQ140汽车变速器输出轴总成设计.docVIP

　 EQ140汽车变速器输出轴总成设计 PAGE \* MERGEFORMAT 61 摘 要 近几年来，我国机动车的数量已经越来越多，而车子的质量也越来越高，对于汽车变速器的发明研究也日益受到重视，已慢慢成为汽车领域的一个重要部分。目前，随着科技的进步，汽车工业的迅速发展，而人类对舒适性的更高要求，使得变速器的发展更加深入。 本次毕业设计进行了东风EQ140变速器输出轴总成设计，主要包括对齿轮、轴等等的设计计算。 首先，在对东风EQ140汽车变速器输出轴进行大量的资料检索和调研之后确定了输出轴和齿轮总体布置方案。变速器为三轴式有级变速器，五个前进档和一个倒档，齿轮型式采用渐开线直齿圆柱齿轮。 其次，根据变速器总体设计要求确定了齿轮的传动参数，并对齿轮进行了几何参数计算和强度校核计算。 关键词：变速器，传动机构，齿轮，轴，轴承 Design of EQ140 transmission output shaft assembly ABSTRACT In recent years, China has been increasing the number of motor vehicles, while increasing the quality of the car, the invention of the automobile transmission is also more and more attention has gradually become an important part of the automotive sector. Now, with advances in technology, the rapid development of automobile industry, and human comfort and higher demands, making the transmission more in-depth development. ?????Dongfeng EQ140 the topics transmission output shaft assembly design, including gear, shaft, and so the design calculations. First of all, Dongfeng EQ140 auto transmission output shaft to a large number of information retrieval and research after the output shaft and gears to determine the overall layout. A class of three-axis gearbox transmission, the five forward gears and one reverse gear type involute spur gear and the transmission power output device installed. Secondly, the general design requirements under the transmission gear of the transmission parameters, and the gear geometric parameters were calculated and strength check calculation. Moreover, according to the selected use conditions and requirements of the bearing assembly models, and make the life of the bearing checking and static strength check. Key words: transmission, power train, gears, shafts, bearings  EQ140汽车变速器输出轴总成设计 王肖磊 0 引言 近几年来，我国机动车的数量已经越来越多，而车子的质量也越来越高，对于汽车变速器的发明研究也日益受到重视，已慢慢成为汽车领域的一个重要部分。从现代汽车变速器的市场状况和发展来看，全世界的各大厂商都对提高AT的性能及研制无极变速器（CVT）的表现积极，汽车业界非常重视CVT在汽车上的实用化进程。然而，因无级变速器技术难度很大，发展相对较慢，从而成为世界范围内尚未解决的难题之一。目前世界上装车较多的汽