您好,欢迎访问三七文档
当前位置:首页 > 建筑/环境 > 电气安装工程 > 驱动桥和差速器外文文献翻译
1、1JGHardt,DWSheaDriveaxle/differentialAllvehicleshavesometypeofdriveaxle/differentialassemblyincorporatedintothedriveline.Whetheritisfront,rearorfourwheeldrive,differentialsarenecessaryforthesmoothapplicationofenginepowertotheroad.PowerflowThedriveaxlemusttransmitpowerthrougha90°angle.Theflowofpowerinconventionalfrontengine/rearwheeldrivevehiclesmovesfromtheenginetothedriveaxleinapproximatelyastraightline.However,atthedriveaxle,thepowermustbeturnedatrightangles(fromthelineofthedriveshaft)anddire。
2、ctedtothedrivewheels.Thisisaccomplishedbyapiniondrivegear,whichturnsacircularringgear.Theringgearisattachedtoadifferentialhousing,containingasetofsmallergearsthataresplinedtotheinnerendofeachaxleshaft.Asthehousingisrotated,theinternaldifferentialgearsturntheaxleshafts,whicharealsoattachedtothedrivewheels.2Fig1DriveaxleRear-wheeldriveRear-wheel-drivevehiclesaremostlytrucks,verylargesedansandmanysportscarandcoupemodels.Thetypicalrearwheeldrivevehicleusesafrontmountedengineandtransmissionassemblies。
3、withadriveshaftcouplingthetransmissiontothereardriveaxle.Driveinthroughthelayoutofthebridge,thebridgedriveshaftarrangedverticallyinthesameverticalplane,andnotthedriveaxleshaft,respectively,intheirownsub-actuatorwithadirectconnection,buttheactuatorislocatedatthefrontorthebackoftheadjacentshaftofthetwobridgesisarrangedinseries.Vehiclebeforeandafterthetwoendsofthedrivingforceofthedriveaxle,isthesub-actuatorandthetransmissionthroughthemiddleofthebridge.Theadvantageisnotonlyareductionofthenumberofdri。
4、veshaft,andraisethedrivingaxleofthecommonpartsofeachother,andtosimplifythestructure,reducesthevolumeandquality.3Fig2Rear-wheel-driveaxleSomevehiclesdonotfollowthistypicalexample.SuchastheolderPorscheorVolkswagenvehicleswhichwererearengine,reardrive.Thesevehiclesusearearmountedtransaxlewithhalfshaftsconnectedtothedrivewheels.Also,somevehicleswereproducedwithafrontengine,reartransaxlesetupwithadriveshaftconnectingtheenginetothetransaxle,andhalfshaftslinkingthetransaxletothedrivewheels.Differential。
5、operationInordertoremovethewheelaroundinthekinematicsduetothelackofco-ordinationaboutthewheeldiameterarisingfromadifferentorthesamerollingradiusofwheeltravelrequired,inter-wheelmotorvehiclesareequippedwithaboutdifferential,thelattertoensurethatthecardriverBridgeonbothsidesofthewheelwheninrangewithatriptothecharacteristicsofrotatingatdifferentspeedstomeettherequirementsofthevehiclekinematics.4Fig3PrincipleofdifferentialTheaccompanyingillustrationhasbeenprovidedtohelpunderstandhowthisoccurs.1.Thed。
6、rivepinion,whichisturnedbythedriveshaft,turnstheringgear.2.Theringgear,whichisattachedtothedifferentialcase,turnsthecase.3.Thepinionshaft,locatedinaboreinthedifferentialcase,isatrightanglestotheaxleshaftsandturnswiththecase.4.Thedifferentialpinion(drive)gearsaremountedonthepinionshaftandrotatewiththeshaft.5.Differentialsidegears(drivengears)aremeshedwiththepiniongearsandturnwiththedifferentialhousingandringgearasaunit.6.Thesidegearsaresplinedtotheinnerendsoftheaxleshaftsandrotatetheshaftsastheho。
7、usingturns.57.Whenbothwheelshaveequaltraction,thepiniongearsdonotrotateonthepinionshaft,sincetheinputforceofthepiniongearsisdividedequallybetweenthetwosidegears.8.Whenitisnecessarytoturnacorner,thedifferentialgearingbecomeseffectiveandallowstheaxleshaftstorotateatdifferentspeeds.Open-wheeldifferentialoneachgeneralusethesameamountoftorque.Todeterminethesizeofthewheeltorquetobeartwofactors:equipmentandfriction.Indryconditions,whenalotoffriction,thewheelbearingtorquebyenginesizeandgearrestrictionsa。
8、rehoursinthefriction(suchasdrivingonice),isrestrictedtoamaximumtorque,sothatvehicleswillnotspinround.Soevenifthecarcanproducemoretorque,butalsoneedtohavesufficienttractiontotransfertorquetotheground.Ifyouincreasethethrottleafterthewheelsslip,itwillonlymakethewheelsspinfaster.Fig4ConventionaldifferentialLimited-slipandlockingdifferentialoperation6Fig5Limited-slipdifferentialDifferentialsettlementofacarintheunevenroadsurfaceandsteeringwheel-drivenspeedataboutthedifferentrequirements;butisfollowedb。
9、ytheexistenceofdifferentialinthesidecarwheelskidcannotbeeffectivewhenthepowertransmission,thatis,thewheelslipcannotproducethedrivingforce,ratherthanspinthewheelanddoesnothaveenoughtorque.Goodnon-slipdifferentialsettlementofthecarwheelsskidonthesideofthepowertransmissionwhentheissue,thatis,lockingdifferential,sothatnolongerserveausefuldifferentialrightandleftsidesofthewheelcanbethesametorque.Limited-slipandlockingdifferentialoperationcanbedividedintotwomajorcategories:(1)mandatorylockingtypeinord。
10、inarydifferentiallockingenforcementagenciestoincrease,whenthesideofthewheelskidoccurs,thedrivercanbeelectric,pneumaticormechanicalmeanstomanipulatethelockingbodymeshingsetsofDIPShellwillbewiththeaxledifferentiallockintoone,thusthetemporarylossofdifferentialrole.Relativelysimplestructureinthisway,butitmustbeoperatedbythedriver,andgoodroadstostoplockingandrestoretheroleofdifferential.(2)self-lockingdifferentialinstalledintheoilviscosityorfrictionclutchcoupling,whenthesideofthewheelskidoccurswhenbot。
本文标题:驱动桥和差速器外文文献翻译
链接地址:https://www.777doc.com/doc-4491290 .html