文档介绍：充值下载即送 CAD 图纸, QQ 36396305 I 编号: 毕业设计(论文)说明书题目: 机械式六档变速器设计院(系): 机电工程学院专业: 机械设计制造及其自动化学生姓名: 学号: 指导教师: 职称: 题目类型: ?理论研究?实验研究?工程设计?工程技术研究?软件开发 201 4年5月 26日充值下载即送 CAD 图纸, QQ 36396305 II 摘要变速器是汽车中非常重要的组成部分。虽然机械式变速器换档时冲击比较大,操纵繁琐,但其传动效率高、生产制造简单以及成本低,所以仍广泛应用在现代汽车上。在变速器中增加一个档位,由于变速器相邻档之间的传动比变化更小,所以汽车换挡时的冲击较小。本文根据市场上的五档汽车,设计一个机械式六档变速器,依据机械设计基本原理和方法主要设计变速器的传动机构、同步器和换挡操纵机构等, 然后对齿轮和轴进行校核。关键词: 变速器,六档,机械式充值下载即送 CAD 图纸, QQ 36396305 III Abstract T ransmission isa very ponent in automobile . Although the impact of the mechanical transmission is relatively large and plex manipulation, but the transmission is efficient and simple and also has a low manufacturing cost, so it is still widely used in modern vehicles. An increase in the transmission gear, because the transmission ration between adjacent transimission gear e smaller, so the impact of the shift e smaller when the car change the gears. Based on the five-speed car on the market, the article designs a mechanical six-speed transmission according to the mechanical design of the basic principles and design contains transmission main mechanism design, synchronizer and shift control mechanism, etc., and then check the gear and shaft. KeyWords: Transmission; six-speed; mechanical 充值下载即送 CAD 图纸, QQ 36396305 IV 目录引言.................................................................................................................................................................... 1 1 变速器设计方案分析................................................................................................................................. 2 传动结构的分析与选择.................................................................................................................... 2 换挡结构的分析与选择.................................................................................................................... 3 倒档结构布置................................................................................................................................... 5