中顺轻型客车底盘总布设计毕业论文.doc

摘 要 本文对中顺轻型客车进行了底盘总体布置的设计，并对其进行了转向系的运动校核。 文中对中顺轻型客车底盘各主要部件进行总体的布置设计以及对相应的参数进行了选取和计算，在此基础上完成了总体布置设计，对汽车底盘布置形式进行了选择，这样就确定了轴数、驱动形式和发动机的安装位置。根据所确定的汽车底盘布置形式，考虑到乘车的舒性以及对商务车的基本性能的要求来进行了汽车主要尺寸参数和性能参数的选取和计算，在此基础上选取并确定了底盘各部件的动力总成、减振器及转向器等。最后参考了同类车型的底盘总布置方案来对中顺轻型客车进行底盘总布置，并绘制了底盘的总布置图。 本文在底盘的设计过程中，为了保证汽车驾驶的舒适性和安全性，对转向系的运动干涉问题进行了校核。在分析过程中采用了图解法，对转向系在向左、向右转向时的不同情况进行校核，并测试其合理性，最后的分析结果表明，所设计的转向机构匹配合理，切合实际。 关键词：轻型客车；底盘；总布置；运动校核； Abstract This dissertation is the chassis overall layout design of the ZhongShun light bus , and then check the locomotion of the steering system of this bus. This discourse select and count the layout design and the relevant parameter of the chassis`s main parts of ZhongShun light bus , On the basic of this , we finally finished this layout design , selecting the form of the layout design , and then we need to ensure the number of shafts、the type of drive and the mounted position of engine . And then , with the ensure the form of the chassis overall layout , take into account the comfort of the bus and the basic capability need of the commercial vehicle , to select and count the parameter of the main size and the capability . With the basic select and ensure every the chassis`s parts , such as power assembly, Shock Absorber, steering and so on. At last consult the chassis layout project of homogeneous model of the car ,to make the layout of the ZhongShun light bus`s chassis , and protract the chart of the chassis overall layout. On the course of the design of the chassis , in order to make sure the comfort and the safety of the automobilism , we check the interference movement to the steering system . On the course that we use the graphical method, check the different case when the steering system turn left or right . The analysis reault indicate that all the design of the steering systerm are matching with reason and practicableness. Key words： light bus; chassis；layout；check the locomotion 目 录 第1章 绪论 1 1.1轻型客车发展现状概述 1 1.1.1 轻型客车底盘发展现状 1 1.1.2 轻型客车底盘设计