摘要：变速器是当今交通工具乘用车中必不可少的重要部分，虽然手动变速器在换档时相对自动变速器而言会有较大的冲击，换挡操做也比较繁琐。如今在技术、生产方式上对于手动变速器的评价都是相对简单，同时还能保证极高的传动效率，成本也低不少，在现今的汽车市场上，仍有很多使用手动变速器的乘用车。同时，也随着经济的不断发展，道路交通存在很多问题，自动变速器被更多大众接受，变速器的发展方向也渐渐像自动化靠拢，因而，本设计的主旨是设计一款手自一体化的变速器，可以在道路拥堵的路段解放手脚，在开阔的路段感受手动换挡的驾驶乐趣。本文之中所提到的设计还在初期，整个设计从在校所学的机械设计基本原理出发，进行一些较为基础的计算，对变速器内主要相关的零部件进行设计选用，并进行校核确保设计可行性，对自动变速的系统进行相关的介绍。73743

毕业论文关键词：变速器，六档，手自一体

Manual and automatic integration transmission design of cars

Abstract: There is an important part of transportation passenger car,which is a indispensable transmission , while manual transmission shift when will have greater impact than the level of automatic transmission, shift control is more complicated。 But because the efficiency of manual transmission transmission is high, it is relatively simple for the mode of production and manufacturing process , the cost is lower than the automatic transmission, in today's car market, there are still a lot of passenger car use manual transmission。 At the same time, also with the continuous development of economy, road traffic has a lot of problems, automatic transmission is more acceptable, and the development direction of transmission is also gradually like automation, therefore, is the main idea of this design is to design a hand from the integration of the transmission, can be in road congestion road of liberation, in the open road feel manual shift driving pleasure。 This manual mainly expounds the design phase using the mechanical design basic principle and method of design of the manual transmission shift gear transmission mechanism, synchronizer and operating mechanism, etc。, and then to check the gear and shaft。 This paper introduces the system of automatic transmission。 

KeyWords:Transmission; six-speed；manual and automatic integration

目  录

引言 1

1  变速器设计方案分析 3

1。1传动结构的分析与选择 3

1。1。1两轴式变速器 3

1。1。2中间轴式变速器 4

1。2 换挡结构的分析与选择 5

1。2。1直齿滑动齿轮换档 6

1。2。2啮合套换档 6

1。2。3同步器换档 6

1。3倒档结构布置 7

1。4 换挡操纵结构 8

1。4。1自锁结构 9

1。4。2互锁结构 9

1。5其他零部件分析和选择 10

1。5。1齿轮 10

1。5。2轴 10

1。5。3轴承 11

2  变速器主要参数的选择 11

2。1 主要输入参数 11

2。2 变速器传动比的选择