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1、本科生毕业设计摘要轻型汽车在商用汽车生产中占有很大的比重,而且驱动桥在整车中十分重要。驱动桥作为汽车四大总成之一,它的性能的好坏直接影响整车性能,而对于载货汽车显得尤为重要。为满足目前当前载货汽车的快速、高效率、高效益的需要时,必须要搭配一个高效、可靠的驱动桥。设计出结构简单、工作可靠、造价低廉的驱动桥,能大大降低整车生产的总成本,推动汽车经济的发展,并且通过对汽车驱动桥的学习和设计实践,可以更好的学习并掌握现代汽车设计与机械设计的全面知识和技能,所以本题设计一款结构优良的轻型货车驱动桥具有一定的实际意义。本文首先确
2、定主要部件的结构型式和主要设计参数,在分析驱动桥各部分结构形式、发展过程及其以往形式的优缺点的基础上,确定了总体设计方案,采用传统设计方法对驱动桥各部件主减速器、差速器、半轴、桥壳进行设计计算并完成校核。最后运用AUTOCAD完成装配图和主要零件图的绘制。关键词:轻型货车;驱动桥;单级主减速器;差速器;半轴;桥壳13本科生毕业设计ABSTRACT.Pickuptruckstakealargeproportionofcommercialvehiclesproduction,andthedriveaxleisoneoft
3、hemostimportantstructure.Driveaxleistheoneofautomobilefourimportantassemblies,Itsperformancedirectlyinfluenceontheentireautomobile,especiallyforthetruck.Becauseusingthebigpowerenginewiththebigdrivingtorquesatisfiedtheneedofhighspeed,heavy-loaded,highefficiency,
4、highbenefittoday`truck,mustexploitingthehighdrivenefficiencysinglereductionfinaldriveaxleisbecomingthetrucks’developingtendency.Designasimple,reliable,lowcostofthedriveaxle,cangreatlyreducethetotalcostofvehicleproduction,andpromotetheeconomicdevelopmentofautomo
5、bileandautomotivedriveaxleofthestudyanddesignpractice,canbetterlearnandtomastermodernautomotivedesignandmechanicaldesignofacomprehensiveknowledgeandskills,sothetitleofthefinestructureofthedesignofapickupvehicledriveaxlehasacertainpracticalsignificance.Inthispap
6、er,firstofalldeterminethestructureofmajorcomponentsandthemaindesignparameters,theanalysisofthevariouspartsofthestructureofthebridgedrivetype,theformofthedevelopmentprocessanditsadvantagesanddisadvantagesofthepast,determinedonthebasisofthedesignprogram,usingthet
7、raditionaldesignmethodofvariouspartsofthedriveaxleMainreducer,differential,axle,axlehousingwasdesignedtocalculateandcompletethecheck.FinallycompletethefinalassemblydrawingbyusingAUTOCADandmappingthemaincomponents.Keywords:Pickuptruck;Driveaxle;Singlereductionfi
8、naldrive;Differential;Axle;DriveAxlehousing13本科生毕业设计目录摘要IAbstractII第1章绪论11.1选题的背景目的及意义11.2国内外驱动桥研究状况11.3设计主要内容和预期结果3第2章驱动桥的总体方案确定42.1驱动桥的种类结构和设计要求42.1.1汽车车桥的种类42.1.2驱动桥的种类42