差速器外文文献Word格式.doc
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差速器外文文献Word格式.doc
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(left)+(rightshaftspeedshaftspeed)=2(planetswheelframespeed).Whentheautomobilemoher,left,rightwheelandplanetarywheelframethreespeedequalinbalance,whileinthecarwhenturningthreeequilibriumstateisdestroyed,causethemedialwheelspeeddecreases,andthelateralwheelRPMincreases.
AutomotivedifferentialisdrivenaxleLordpieces.Itsfunctionistobothsideshalfshafttransmissionpower,whileallowingbothsideshalfshaftindifferentspeedrotating,satisfybothsideswheelaspurerollingformsdoisometricdriving,reducingtireandthesurfacefriction.
Differentialthisadjustmentisautomatic,hereinvolves"
minimalenergyconsumptionprinciple"
namelyearthallobjectsareinclinedtoconsumptionminimumstate.Forexampleagrainofbeansintoabowl,beanswillautomaticallystaysinthebowlbottomandneverstayinbowlwall,becausebowlbottomislowestenergyposition(potential),itautomaticallyselectstatic(minimum)withoutconstantlykineticenergymovement.Inthesameway,Wheelincorneringwouldalsoautomaticallytendencyofthelowestenergyconsumptioninaccordancewithstate,automaticallyturningradiusadjustingrightwheelsspeed.
Whencornering,duetothelateralfrictionwheeldraggedphenomenon,medialwheelhaveslipphenomenon,twodrivingwheelnowcanproducetwooppositedirectionofadditionalforce,asaresultof"
whichinevitablyleadsonbothsidesofthewheelspeeddifference,thusdestroyedthreebalancerelationship,andthroughthehalfshaftarereflectedinhalfaxlegear,forcingplanetarygearproducerotation,makethelateralhalfshaftspeedfaster,medialhalfaxleplanetismal,thusrealizebothsideswheelspeeddifference.
Ifthedrivewheelsoneithersideofthedriveaxleshafttotheuseofawholerigidconnection,thetwowheelscanonlyatthesameAnglerotation.So,whenthevehiclesteeringwheeldrive,duetothelateralthanmedialwheelsmovedacrossthedistanceisbig,willmakethelateralwheelsinrollingproducedsimultaneouslyslipperyprocrastinate,andmedialwheelsinrollingproducedsimultaneouslyslip.Eventhecarrunstraightroadgravamen,becausealthoughpavementstraightbuttyresorrollingradiusrange(tyremanufactureerror,weardifferent,bytheunevenorpneumaticrangingcausedbythewheelsofsliding).
Wheelwhennotonlyaggravateslidingtirewear,increasepowerandfuelconsumption,stillcanmakethevehiclesteeringdifficulties,brakingperformancebecomespoor.Forthewheelasfaraspossiblewillnotoccurinthestructureofsliding,mustguaranteethewheelscancomewithdifferentAnglerotation.
Axisbetweendifferential:
usuallydrivenwheelbearingsforsupportonspindle,enabletoanyAnglerotation,anddrivewheelsrespectivelywithtworoothalfaxlerigidconnection,inbetweentworoothalfshaftwithdifferential.Thisdifferentialalsocalledshaftbetweendifferential.
slowly,rightwheelsfaster,withdifferentspeedtocompensateforthedistanceofthedifferences.
Ifafteraxlesmakeitawhole,hecouldn'
tdoitonbothsidesofthewheelspeeddifference,namelycan'
tdoanautomaticadjustment.Inordertosolvethisproblem,asearlyasinahundredyearsago,FranceRenaultautomotivecompanyfounderluisRenaultwilldesignadifferentialinthisthing.
Modernvehiclesonthedifferentialusuallyaccordingtoitsworkcharacteristicsintogeartypedifferentialandslipdifferentialtwokindsbig.
ThestructureoftheCherokeeopen-diedifferentialistypicalofplanetarygearsetstructure,onlythesunwheelandoutsidethepiniongearringarethesame.Inthisplanetarygearset,drivinggearisplanetshelf,passiveroundistwoSUNSwheel.Throughtheplanetarygearsetthetransmissionpropertiesweknow,iftheplanetshelfasZhuDongZhou,twoSUNSwheelspeedandrotationdirectionisnotaffirmatory,eventwoSUNSwheelrotationdirectionistheopposite.
Vehiclecondition,thisdifferentialmoher,featureistotwoandahalfshafttransmissiontorqueofthesame.Inadrivingwheelimpendingcase,ifthedriveshaftrotation,haveadhesionisuniformthedrivingwheelsofdrivingforce,ifthereisnodriveshaftrotationisaccelerated,haveadhesionthedrivingwheelsdrivingforceequalsimpendingwheelAngleaccelerationandrotaryinertiaoftheproduct.
Vehicleturningtiresdon'
tskidcondition,connectthetwohalvesofthedifferentialshafttorquedirectionisopposite,givethevehicledr
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