动力传动及走行系统知识齿轮箱

EDRTrainingRAILWAYSECTORGear

casingCONTENTSGeardriveGear

casingDifferential

mechanismDCL-32

TransfercaseDCL-32AxlegearboxGear

casing

Atypicalmodernmachineiscomposedoffourparts，Thatispowerpart、transmissionpart、Workingpart、controllerpart.machinePowerpartTransmissionpartWorkingpartControlpart

ThecomposingofmodernmachineMainbodyDCL-32tampingMachineDCL-32tampingmachineisacontinuoustampingmachineThesectionofthetrackbedisshapedaccordingtothetechnicalrequirements.Thecleaningdevicecleansandcollectstheballastremainingonthesleepersandfastenersduringoperation,andthenmovestothesideslopeofthetrackbedthroughtheconveyorbelttoachieveaneatandbeautifulappearanceoftheline.Amachinecompriseseveralkindsofmechanismsoronlyonemechanism.Mechanismcanbedefinedasfollow：

Whatismechanism？Asystemofelementswithcertainmotion

arrangedtotransmitmotioncamgearlinkagecommonmechanismGeartrainUniversalpart：partusedinallkindsmachinery.Specialpart：partusedinspecialmachinery.

suchas：

gear,bearing,shaft,spring,bolt,nut,keyandsoon.

suchas：vane、pistonandsoon.IntroductionThegearboxisakindofpowertransmissionmechanism,whichcanconvertthenumberofrevolutionsoftheenginetotherequirednumberofrevolutions,andcanchangethetorque.Itcanbeseeninthetransmissionsystemofallkindsofmachinery,suchasships,automobiles,locomotives,heavymachineryusedinconstruction,processingmachinesandautomatedproductionequipmentusedinthemachineryindustry,householdappliances,clocksandwatchesandsoon.Thetransmissionoflarge-scaletrackmaintenancemachineryisinseparablefromthegearbox.

1.Basicknowledgeofgearbox

Thegearbox,alsoknownasthereductiongearbox,isapowertransmissionmechanismthatconvertsthenumberofrevolutionsofthemotortothenumberofrevolutionsrequiredbytheactuatorthroughthemeshingofgearswithdifferentnumbersofteeth,andcanchangethetorque.2.FunctionA.AccelerationanddecelerationB.ChangethetransmissiondirectionC.ChangetherotatingtorqueD.ClutchfunctionE.Distributionofpowera.Accelerateanddecelerate,whichisoftenreferredtoasavariablespeedgearbox.b.Changethetransmissiondirection.Forexample,wecanusetwosectorgearstotransmittheforceverticallytotheotherrotatingshaft.c.Changetherotatingtorque.Underthesamepowercondition,thefasterthegearrotates,thesmallerthetorqueontheshaft,andviceversa.2.FunctionA.AccelerationanddecelerationB.ChangethetransmissiondirectionC.ChangetherotatingtorqueD.ClutchfunctionE.Distributionofpowerd.Clutchfunction:Wecanseparatetheenginefromtheloadbyseparatingthetwooriginallymeshedgears.Suchasbrakeclutchesandsoon.e.Distributionofpower.Forexample,wecanuseoneenginetodrivemultipleslaveshaftsthroughagearboxmainshaft,soastorealizethefunctionofoneenginedrivingmultipleloads.Gearbox

WormGearboxCylindricalgearboxBevelgearboxCylindricalwormgearboxArc-toothwormgearboxBevelwormgearboxWorm-geargearbox3.Classification

ofgearboxesAClassifiedbygearshapeb.ClassifiedbythenumberofshiftsSingle-stagetransmissionDouble-stagetransmission3-stagetransmission3-stagetransmission

WormGearboxHorizontalsplitBearingStiffenerRibsOildipstickOilmarkOildrainplugHookWhenchangingtheoil,inordertodrainthedirtyoilandcleaningagent,anoildrainholeshouldbeopenedatthebottomofthetankandthelowestpositionoftheoilpool.Addleak-proofgaskets.HookLiftinglugInordertofacilitatehandling,aliftingdevicemustbeinstalledonthebox.Therearetwoliftinglugscastontheboxcoverinthepicture,whichareusedtolifttheboxcover.Twohooksarecastontheboxseatforliftingandtransportingtheentiregearbox.Differentialmechanism1.Thepowerinputofthedifferential,thedrivengearbevelgeardrivesthedifferentialhousingtorotate;2.Theoutputofthedifferential,thetransmissionshaftsonbothsidesofthetwohalfshaftgearsarealsocalledhalfshafts,whichgivepowertoWheelsonbothsides;3.Therotationoftheplanetarygearreferstotherotationoftheplanetarygeararoundtheplanetarygearshaft;4.Therevolutionoftheplanetarygearreferstotherotationoftheplanetarygeararoundtheaxisofthehalf-shaftgear."Thetransfercaseofthetampingcarusesapairofcylindricalspurgearstodividetheinputpowerintotwooutputs,whicharetransmittedtothetwoaxlegearboxesofthefrontbogie.Thetransfercasehasasimplestructureandlowcost.Thetransfergearboxislocatedbetweenthehydromechanicalgearboxandthemaindriveaxlegearbox,andisfixedonthesub-beamoftheframethroughasupportseatandrubbershockabsorbers.Thetransmissionratiois1:1,andthepowertransmissionsystemisusedathighspeeds.Amongthem,theroleofthetransfergearboxistotransmitthetorqueoutputbythehydraulicmechanicalgearboxtothetwomaindriveaxlegearboxesoftheactivebogiethroughthedriveshafts,anddrivethewheelpairtorotate.ThetransfergearboxusesSAE90gearoil,withacapacityof1.8L.Thetransfergearboxiscomposedofgeardriveshafts,bearingseats,bearings,flanges,boxbodiesandseals.ThestructureofthetransfergearboxisshowninFigureNextpage,andthearrowpointstothetorquetransmissiondirection.4.Dcl-32Transfercase1.Geardriveshaft1;2.4,10,12.Flange;3,6.9.11-bearing;5.Seals;7ageardriveshaft11;8.Box;13.Bearingseattransfer

caseTheaxlegearboxisthelastlinkofthepowertraveltransmissionsystem.Itsfunctionistodrivethewheelsettorotateafterthepowertransmittedbythedriveshaftreducesthespeedandincreasesthetorque.Theaxlegearboxesonthe1stand2ndaxlesofthefrontbogieoftheturnouttampingcar,transmitpowerthroughthemduringhighandlowspeedtraveling,andtransmitpowerwhentravelingathighspeed,soitiscalledthemaindriveaxlegearbox.Therunningforceofthe4axlesoftherearbogieisahydraulicmotor,whichonlytransmitspowerwhentheworkisrunningatlowspeed,soitiscalledanauxiliarydriveaxlegearbox.DCL-32AxlegearboxThemaindriveaxlegearboxisaone-stagespiralbevelgearreductiongearbox.ItsstructureisshowninFigureNextpage.Itconsistsofaboxbody,asmallarc-toothbevelgearinputshaft,alargearc-toothbevelgearandbearings,etc.Composition,thetransmissionratiois1:3.73.Thefrontendoftheinputshaftofthesmallarc-toothbevelgearisconnectedtotheflangethroughaspline,andtheflangeisconnectedtotheoutputshaftofthetransfercasethroughthetran