机械毕业设计（论文）-大众途观三轴六档变速器设计【三维】.doc

摘要
变速器是汽车传动系统中重要的部件,主要用来改变发动机传到驱动轮上的转矩和转速,它设计的好坏直接影响到汽车的实际使用性能。本文参考现有变速器参数资料的基础上进行一定的改进,说明了汽车变速器的设计计算过程,主要内容是参数的选择和所选零件参数的校核。
本文叙述了机械式变速器的功用、要求,在已提供的设计参数基础上,通过计算分析确定结构方案和主要参数。说明了变速器主要参数的确定方法、齿轮的几何计算和校核过程、轴的尺寸确定和校核过程和同步器的选用方法。
汽车变速器是通过改变传动比,改变发动机曲轴的转拒,适应在起步、加速、行驶以及克服各种道路阻碍等不同行驶条件下对驱动车轮牵引力及车速不同要求的需要。
关键词: 变速器;传动机构;齿轮;离合器;传动比
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Abstract
Transmission System is the most important ponents, mainly used to change the engine driving wheel on the spread of torque and speed, it’s designed to have a direct impact on the actual use of motor vehicles. In this paper, reference information on the existing transmission parameters on the basis of certain improvements on the vehicle transmission design and calculation process, the main contents of the parameters of choice and selected parts of the parameters check.
This paper describes the function of mechanical transmission, requested that the provision has been on the basis of the parameters, determined by calculating the structure of the programme and the main parameters. Description of the main parameters of transmission methods, the puting gear and checking process, the shaft size and the identification and verification process for the selection method of synchronization. Calculation includes gear strength, the axis of mild stiffness
Automobile transmission is by changing the transmission ratio, the engine crankshaft in turn refused to change and adapt at the start, acceleration, road traffic and to e the obstacle of different driving conditions and speed of the drive wheel traction with different demands and needs.
Key words: transmission; transmission; gear; clutch; transmission ratio
目录
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