汽车传动系统的检测与维修

镇江高专ZHENJIANGCOLLEGE毕业设计(论文)汽车传动系统的检测与维修Detectionandrepairofautomotivetransmissionsystem学院名称：财经商贸学院专业班级：学生姓名：学号：指导教师姓名：指导教师职称：2017年5月摘要I摘要当前，随着汽车技术的不断进步，汽车已经成为人们必不可少的交通工具，人们生活水平的提高对汽车的安全性、操控性、舒适性和经济性等需求也提高了。所以汽车的各大组成部分的维护与常见故障的诊断也日益显得重要。汽车底盘传动系是汽车发动机与驱动轮之间的动力传递装置。然而它的保养被人们视为可有可无，远没有发动机车身受人重视。其实汽车的传动系，直接关系到汽车的安全性、操控性、舒适性和经济性各种关键的性能。随着现在汽车的不断发展更新，传动系的结构也越来越复杂，自动化程度也越来越高，当然传动系也将是未来汽车发展的重要组成部分。本文首先介绍了汽车传动系结构，然后探讨了汽车传动系常见故障诊断及维修，最后以途安汽车为例，分析了转向系统的故障诊断以及维修。关键词：汽车传动系统；动力传递；离合器；万向节；驱动桥镇江市高等专科学校毕业设计（论文）IIAbstractAtpresent,asautomotivetechnologyadvances,carshavebecomeanessentialmeansoftransport,improvementofpeople'slivingstandardsonvehiclesafety,maneuverability,comfortandeconomyarealsoimproved.Sothemajorpartofthecar'smaintenanceandcommonfaultdiagnosisisalsobecomingmoreandmoreimportant.Transmissionsystemofvehiclechassisareautomobileenginesandpowertransmissionbetweenthedrivingwheels.Itsmaintenancewasconsidereddispensable,however,farfromenginecarvalued.Automobiletransmissionsystems,directlyrelatedtovehiclesafety,maneuverability,comfortandeconomyofkeyproperties.Withthedevelopmentofthecarupdatedtransmissionstructureismorecomplex,higherdegreeofautomationandtransmissionsystemwillbeanimportantpartoffuturevehicledevelopment.Thispaperintroducesthevehiclepowertrainstructure,thentheautotransmissionsystemfaultdiagnosisandrepair,finally,Tourancarasanexample,analysisofsteeringsystemfaultdiagnosisandmaintenance.Keywords：automotivetransmissionsystemspowertransmissionclutchuniversaljoint;thedriveaxle目录III目录摘要......................................................................................................................IAbstract..............................................................................................................II第1章汽车传动系结构..................................................................................11.1传动系的组成..........................................................................................................11.2传动系的功能..........................................................................................................11.2.1实现汽车减速增矩.......................................................................................11.2.2实现汽车变速...............................................................................................21.2.3实现汽车倒车...............................................................................................21.2.4必要时中断传动系统的动力传递...............................................................31.3汽车传动系的类型..................................................................................................3第2章汽车传动系常见故障诊断及维修......................................................42.1离合器的常见故障诊断与维修..............................................................................42.1.1分离不彻底...................................................................................................42.1.2起步发抖.......................................................................................................42.1.3传力打滑.......................................................................................................42.1.4异响...............................................................................................................52.2变速器的常见故障诊断与维修..............................................................................52.2.1变速器跳档...................................................................................................52.2.2变速器乱挡...................................................................................................62.2.3变速器换挡困难...........................................................................................72.3万向传动装置的常见故障诊断与维修..................................................................72.3.1传动轴异响及振抖.......................................................................................82.3.2中间支承总成异响.......................................................................................9第3章案例分析.............................................................................................103.1途安汽车转向系统的组成及工作原理................................................................103.1.1系统组成.....................................................................................................103.1.2工作原理.....................................................................................................113.2故障实例................................................................................................................11结语...................................................................................................................12参考文献...........................................................................................................13致谢...............................................................................................................14第1章汽车传动系结构1第1章汽车传动系结构汽车传动系统的基本功用是将发动机发出的动力按照需要传给驱动车轮。1.1传动系的组成现代汽车普遍采用的是活塞式内燃机，与之相配用的传动系统大多数是采用机械式或液力机械式的。普通双轴货车或部分轿车的发动机纵向布置在汽车的前部，并且以后轮为驱动轮，其传动系统的组成和布置如图1所示。发动机发出的动力依次经过离合器、变速器和由万向节与传动轴组成的万向传动装置，以及安装在驱动桥中的主减速器、差速