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1、本科学生毕业设计JX1021TS3轻型货车驱动桥设计院系名称：汽车与交通工程学院专业班级：车辆工程学生姓名：指导教师：职称：讲师TheGraduationDesignforBachelor'sDegreeDesignofPickupTruckDrivingAxleCandidate：Specialty：Vehicle Engineering Class:B07-1Supervisor：Lecturer.HeilongjiangInstituteofTechnology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
2、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、高效益需要的同时时，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的轻型货车驱动桥具有一定的实际意义。本设计首先论述了驱动桥的总体结构，在分析驱动桥各部分结构型式、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：采用整体式驱动桥，主减速器的减速型式采用单级减速器，主减速器齿轮采用螺旋锥齿轮，差速器采用圆锥行星齿轮差速器，半轴采用全浮式型式，桥壳采用铸造整体式桥壳。在本次设计中，主要完成了单级减速器、圆锥行星
3、齿轮差速器、全浮式半轴的设计和桥壳的校核及材料选取等工作。最后运用AUTOCAD完成装配图和主要零件图的绘制。全套图纸，加153893706关键词：轻型货车；驱动桥；单级主减速器；差速器；半轴；桥壳52ABSTRACTPickuptruckstakealargeproportionofcommercialvehiclesproduction,andthedriveaxleisoneofthemostimportantstructure.Driveaxleistheoneofautomobilefourimportantassemblies,Itsperformance
4、directlyinfluenceontheentireautomobile,especiallyforthetruck.Becauseusingthebigpowerenginewiththebigdrivingtorquesatisfiedtheneedofhighspeed,heavy-loaded,highefficiency,highbenefittoday`truck,mustexploitingthehighdrivenefficiencysinglereductionfinaldriveaxleisbecomingthetrucks’developin
5、gtendency.Designasimple,reliable,lowcostofthedriveaxle,cangreatlyreducethetotalcostofvehicleproduction,sothetitleofthefinestructureofthedesignofapickupvehicledriveaxlehasacertainpracticalsignificance.TheconfigurationoftheDrivingAxleisintroducedinthethesisatfirst.Onthebasisoftheanalysiso
6、fthestructureandthedevelopingprocessofDrivingAxle,thedesignadoptedtheIntegralDrivingAxle,SingleReductionGearforMainDecelerator’sdecelerationform,SpiralBevelGearforMainDecelerator’sgear,FullFloatingforAxleandCastingIntegralAxleHousingforAxleHousing.Inthedesign,weaccomplishedthedesignforD
7、oubleReductionGear,taperedPlanetaryGearDifferentialMechanism,FullFloatingAxle,thecheckingofAxleHousingandtheelectionofthematerialandsoon.FinallycompletethefinalassemblydrawingbyusingAUTOCADandmappingthemaincomponents.Inthispaper,firstofalldeterminethestructureofmajorcomponentsa
