黑龙江工程学院本科生毕业设计PAGEII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ABSTRACT.Pickuptruckstakealargeproportionofcommercialvehiclesproduction,andthedriveaxleisoneofthemostimportantstructure.Driveaxleistheoneofautomobilefourimportantassemblies,Itsperformancedirectlyinfluenceontheentireautomobile,especiallyforthetruck.Becauseusingthebigpowerenginewiththebigdrivingtorquesatisfiedtheneedofhighspeed,heavy-loaded,highefficiency,highbenefittoday`truck,mustexploitingthehighdrivenefficiencysinglereductionfinaldriveaxleisbecomingthetrucks’developingtendency.Designasimple,reliable,lowcostofthedriveaxle,cangreatlyreducethetotalcostofvehicleproduction,andpromotetheeconomicdevelopmentofautomobileandautomotivedriveaxleofthestudyanddesignpractice,canbetterlearnandtomastermodernautomotivedesignandmechanicaldesignofacomprehensiveknowledgeandskills,sothetitleofthefinestructureofthedesignofapickupvehicledriveaxlehasacertainpracticalsignificance.Inthispaper,firstofalldeterminethestructureofmajorcomponentsandthemaindesignparameters,theanalysisofthevariouspartsofthestructureofthebridgedrivetype,theformofthedevelopmentprocessanditsadvantagesanddisadvantagesofthepast,determinedonthebasisofthedesignprogram,usingthetraditionaldesignmethodofvariouspartsofthedriveaxleMainreducer,differential,axle,axlehousingwasdesignedtocalculateandcompletethecheck.FinallycompletethefinalassemblydrawingbyusingAUTOCADandmappingthemaincomponents.Keywords:Pickuptruck;Driveaxle;Singlereductionfinaldrive;Differential;Axle;DriveAxlehousing黑龙江工程学院本科生毕业设计Ⅱ目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc199748003"摘要PAGEREF_Toc199748