农机驱动桥的结构与维修-驱动桥的拆装与调整（农机底盘结构与维修课件）

3.5驱动桥的调整小锥齿轮轴垫片厚度的确定Usingamicrometer,measuretheH1distancebetweenthecrownwheelaxisandmajorbaseofpinion(internalringofrearbearing).用测微计测量差动器侧伞齿轮到锥齿轮底部（后轴承内环）H1的距离BevelPinionPositioning小锥齿位置ThethicknessofadjusterringSisgivenby调整环S厚度由下式计算出:S=H1+Sp-H3Where其中:

H1isdistancemeasuredH1为测量出的距离SpisthetestringSp为调整环H3=H2±CH2=145.5mm(nominaldistance)CisthecorrectionvaluestampedonthepinionCorrectionvalueCAdjusterring调整环SBevelPinionPositioning小锥齿位置PinionShaftTaperedBearingsAdjustment小齿轮轴锥形轴承调节Fitthebevelpinion,completewithrelativeparts.连同相关零件一起装配小锥齿Tightentheadjusternut,whilstrotatingthepinionshafttocorrectlypositionthebearings.拧紧调整螺母，同时旋转小齿轮轴将轴承的位置调整正确Therollingtorquecorrespondstoaforce(measuredwithaspringbalance)of8.6÷17.2N.滚轴扭矩为（用弹簧秤测出）8.6÷17.2NMeasuretherollingtorquewithacordwrappedaroundthelowgearPinionShaftTaperedBearingsAdjustment小齿轮轴锥形轴承调节Fitthebevelpinion,completewithrelativeparts.连同相关零件一起装配小锥齿Tightentheadjusternut,whilstrotatingthepinionshafttocorrectlypositionthebearings.拧紧调整螺母，同时旋转小齿轮轴将轴承的位置调整正确Therollingtorquecorrespondstoaforce(measuredwithaspringbalance)of8.6÷17.2N.滚轴扭矩为（用弹簧秤测出）8.6÷17.2NMeasuretherollingtorquewithacordwrappedaroundthelowgearClearanceBetweenSatelliteandPlanetaryPinionTeeth行星齿轮与行星齿轮齿间间隙

LHM AxialmovementoftheLHplanet左侧行星齿轮轴向运动

RHM AxialmovementoftheRHplanet右侧行星齿轮轴向运动

H1 Distancebetweenhousingandplanet(withplanettouchingthesatellite) 壳体与行星齿轮间距离

H2 Distancebetweenhousingandplanet(withplanettouchingthehousing)

壳体与行星齿轮间距离

LHS ShimforLHplanet左侧行星齿轮垫片

RHS ShimforRHplanet右侧行星齿轮垫片

0.30 Nominalbacklash(0.25TL-70A)mmLHM/RHM=H1-H2LHS/RHS=LHM/RHM-0.30Crown-WheelAdjustmentMounttheCrown-Wheelassemblytogetherwithleftandrightsupports.Bytool50027,bringtheleftandrightringnutsincontactwiththebearings.Tightenoneoftheringnutswhilstlooseningtheotheronebythesamequantitytoobtainabacklashbetweencrownandpinionteethsof0.18mm.Crown-WheelAdjustmentUsingadialgauge(1),measurethebackslashclearanceofthecrownwheelteethtothepinionteeth(threemeasurementsat120°andcalculatetheaverageofthereading).Crown-WheelAdjustmentTightenleftringnuttoobtainapinion-crownrollingforceof19÷44Nmeasuredoncrown.N.B.-rollingforceisdifferentbetweenmodels,pleaserefertotheWorkshopManual.Crown-WheelAdjustmentCrown-WheelAdjustmentCheckthebacklashbetweencrown-pinionteeth.Ifgreaterthan0.23mm,tighttherightringnutwhilstlooseningbythesameamounttheleftonetoobtainacorrectclearance(0.18÷0.23mm).Tool工具50027Tooltobemadeforadjustingthecrown-wheel.Measuresinmm单位：毫米PositionofDLEngagementSleeve差速锁接合套位置Insertthetool50041withthe8.1÷8.2mmshimbetweenthesleeveandthedifferentialbox.Byacrowbar,bringthesleeveincontactwiththetoolandthedifferentialbox.Byafeelergauge,measuretheclearancebetweentheplateanditsseat.Tool工具50041Insertcalculatedshimsbetweentransmissionhousingandexternalplate.PositionofDLEngagementSleeve差速锁接合套位置Tool工具50041TooltobemadeforadjustingtheDLengagementsleeveposition.该工具用于调整差速锁接合套位置Measuresinmm单位：毫米GearSupportAxialClearance齿轮座轴向间隙Fitthedrivengearsupportanditsadjustershim.Insertthesafetyplateandtightenthebolt.Byadialgauge,checkthattheaxialclearanceis0.2÷0.4mm,otherwisereplacetheadjustershim.1.功用1)降速增扭。2)改变动力传递方向（发动机纵置