变速器课程设计

目 录

机械式变速器的概述及其方案的确定···········2
1、变速器的功用和要求·······················2
2、变速器传动方案及简图·····················2
3、倒档的布置方案···························3
二、变速器主要参数的选择与主要零件的设计·······4
1、变速器的主要参数选择·····················4
2、齿轮参数·································5
3、各档传动比及其齿轮齿数的确定·············6
4、轮的受力和强度校核·······················8
轴和轴承的设计与校核······················12
1、轴的工艺要求····························12
2、轴的设计································12
3、轴的校核