米切尔-手动变速器差速器调整.ppt

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1、AdjustRing&PinionGears1CarrierAdjustmentsCarriersrequirefourmajoradjustmentsduringassembly:1.Pinionbearingpreload2.Piniondepth3.Carrierbearingpreload4.Backlash2PinionGearAdjustmentsPinionPreloadShimsCollapsibleSpacerPinionDepthShimShimMostpinionpreloadadjustmentsaremadeusingacollapsiblespacer

2、;someuseselectiveshims.Mostpiniondepthshimsarebetweenthegearheadandthebearing;somefitbetweenthebearingcupandthecarrier.3CrushSleeveThecollapsiblespacer,commonlycalledacrushsleeve,fitsbetweentheupperbearingandthelowerbearingorgear.Tighteningthepinionshaftnutcollapsesthesleeveandincreasesthepre

3、loadonthebearings.Anewcrushsleeveisusedwhenthepiniongearisinstalled.NutCrushSleeve4CheckingPreloadTheamountoftorquerequiredtorotatethepiniongearisbeingmeasuredusingalow-readingtorquewrench.Iftheamountistoolow,thepinionnutwillbetightenedfurthertoputmorepreloadonthebearings.Low-readingTorqueWre

4、nch5ShimAdjustmentAgroupofshimsareplacedbetweenasteponthepinionshaftandthebearings.Thinnershimswillincreasetheamountofbearingpreload.PinionGearPinionPreloadShims6ReplacingDifferentialThedifferentialandringgearwiththecarrierbearingshasbeenplacedintothecarrierwiththeringgearcontactingthepiniong

5、ear.Anadjustingshimisbeinginsertedbetweentheleftbearingcupandthehousing.ShimCarrierDifferentialCase7CarrierBearingPreloadAshimisbeinginsertedbetweentherightsidebearingcupandthehousing.Thethicknessofthis(rightside)shimandtheleftsideshimwilldeterminecarrierbearingpreloadandbacklash.Carrierbeari

6、ngpreloadoccurswhentheshimsarethickerthanthespace.Shim8CheckingBackLashThedialindicatorissetupusingaflexiblemount.Themeasuringstylusisagainstaringgeartooth.Backlashisreadonthedialindicatorbyrockingtheringgearbackandforthwhileholdingthepiniongearstationary.DialIndicatorRingGearFlexibleMount9Ri

7、ngGearToothNamesTheheelistheouterendoftheringgeartooth,andthetoeisattheinnerend.Thepiniongearexertsdrivingpressureonthemoreverticalconvexsideofthetoothwhilethemoreslanted,concavesideiscalledthecoastside.HeelToeCoastSide:ConcaveDriveSide:Conve