1JX1021TS3轻型货车驱动桥设计-S

JX1021TS3轻型货车驱动桥设计DesignofPickupTruckDrivingAxleI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。关键词：轻型货车；驱动桥；单级主减速器；差速器；半轴；桥壳IIABSTRACTPickuptruckstakealargeproportionofcommercialvehiclesproduction,andthedriveaxleisoneofthemostimportantstructure.Driveaxleistheoneofautomobilefourimportantassemblies,Itsperformancedirectlyinfluenceontheentireautomobile,especiallyforthetruck.Becauseusingthebigpowerenginewiththebigdrivingtorquesatisfiedtheneedofhighspeed,heavy-loaded,highefficiency,highbenefittoday`truck,mustexploitingthehighdrivenefficiencysinglereductionfinaldriveaxleisbecomingthetrucks’developingtendency.Designasimple,reliable,lowcostofthedriveaxle,cangreatlyreducethetotalcostofvehicleproduction,sothetitleofthefinestructureofthedesignofapickupvehicledriveaxlehasacertainpracticalsignificance.TheconfigurationoftheDrivingAxleisintroducedinthethesisatfirst.OnthebasisoftheanalysisofthestructureandthedevelopingprocessofDrivingAxle,thedesignadoptedtheIntegralDrivingAxle,SingleReductionGearforMainDecelerator’sdecelerationform,SpiralBevelGearforMainDecelerator’sgear,FullFloatingforAxleandCastingIntegralAxleHousingforAxleHousing.Inthedesign,weaccomplishedthedesignforDoubleReductionGear,taperedPlanetaryGearDifferentialMechanism,FullFloatingAxle,thecheckingofAxleHousingandtheelectionofthematerialandsoon.FinallycompletethefinalassemblydrawingbyusingAUTOCADandmappingthemaincomponents.Inthispaper,firstofalldeterminethestructureofmajorcomponentsandthemaindesignparameters,theanalysisofthevariouspartsofthestructureofthebridgedrivetype,theformofthedevelopmentprocessanditsadvantagesanddisadvantagesofthepast,determinedonthebasisofthedesignprogram,usingthetraditionaldesignmethodofvariouspartsofthedriveaxleMainreducer,differential,axle,axlehousingwasdesignedtocalculateandcompletethecheck.FinallycompletethefinalassemblydrawingbyusingAUTOCADandmappingthemaincomponents.Keywords:Pickuptruck;Driveaxle;Singlereductionfinaldrive;Differential;Axle;DriveAxlehousingi目录摘要........................................................................................................................................IAbstract.................................................................................................错误!未定义书签。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.........................................................................................................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...............................................................................................42.1.3驱动桥结构组成...........................................................................................42.1.4驱动桥设计要求..........................................................................................52.1.5设计车型主要参数.......................................................................................52.2主减速器结构方案的确定......................................................................................62.2.1主减速比的计算..........................................................................................62.2.2主减速器的齿轮类型..................................................................................72.2.3主减速器的减速形式..................................................................................82.2.4主减速器主从动锥齿轮的支承形式及安装方法......................................92.3差速器结构方案的确定.......................................................................................112.4半轴的形式确定....................................................................................................112.5桥壳形式的确定...................................................................................................122.6本章小结................................................................................................................13第3章主减速器设计...................................................................................................143.1概述........................................................................................................................143.2主减速器齿轮参数的选择与强度计算................................................................143.2.1主减速器计算载荷的确定...............................