本科学生毕业设计汽车驱动桥试验台的设计系部名称：汽车与交通工程学院专业班级：车辆工程B07-2班学生姓名：指导教师：职称：副教授TheGraduationDesignforBachelor'sDegreeDesignofAutomobileDrivingAxleTest-BedCandidate：Specialty：VehicleEngineeringClass：B07-2Supervisor：AssociateProf.JiJunlingHeilongjiangInstituteofTechnology2011-06·HarbinPAGEII摘要汽车零部件性能试验在汽车试验方面占有重要的地位，汽车上的变速器、传动轴、驱动桥等重要部件具有结构复杂、使用条件复杂、可靠性要求高等特点，因此从产品开发到生产装车都需要对其进行大量的试验，而且这些试验的项目和规范都已形成国家标准并要求强制执行，以确定其各种性能参数是否满足设计的要求，为汽车的生产、销售、维修和使用者提供可靠的保障。本课题即是开发一款适合于汽车驱动桥性能试验的装置，设计原理采用闭式功率流的原理，以达到节能、操控方便、适用性强的目的。文中分析了驱动桥性能闭式试验台的布置结构和工作原理，在确定了设计方案的基础上完成了试验台传动机构的设计，并对设计的结构进行了布置合理性分析和力学刚度、强度的校核，使得此试验台能够完成如磨合试验和齿轮磨损试验，并根据所设计的各部分详细参数，利用软件AUTOCAD绘制了试验台中传动机构的整体装配图和传动机构的各部分零件图。关键词：汽车驱动桥；试验台；性能试验；设计；加载机构ABSTRACTAutopartsperformancetestinautomotivetestoccupiesanimportantpositioninthetransmission,andcars,transmissionshaft,axlesandotherimportantpartswithcomplexstructure,useconditioniscomplexandreliabilityrequirementshighercharacteristic,therefore,fromproductdevelopmenttotheproductionofitsloadallneedquitealotofexperiments,andthetestprojectandhasformednationalstandardsandregulationsandrequirementstodeterminetheircompulsoryexecution,whethersatisfyvariousperformanceparametersforcardesignrequirement,theproduction,salesandmaintenanceandusersprovidedthereliablesafeguard.Thistopicthatisdevelopmentofasuitableforvehicleaxlesperformancetestdevice,designprinciplesusingtheprincipleofclosedpowerflowcontrol,inordertoachieveenergysaving,convenient,andwideapplicabilitypurpose.Thispaperanalyzesthedrivingaxleperformancetest-bedclosedthelayoutstructureandworkingprinciple,indeterminingthebasisofthedesignplancompletedthedesignoftest,anddrivemechanismtodesignthestructureofrationalityanalysisandmechanicalstiffnessdecorate,checkingintensity,makethistestrigcanaccomplishsuchasdrivingaxleratiotest,therunning-in,gearweartest,andaccordingtoallthepartsofthedetaileddesignparametersandemployingsoftwareAUTOCADplottedintheoveralltestdrivemechanismassembly