西南交通大學(xué)雅萬高鐵運(yùn)維人員培訓(xùn)2022年3月Instructor:DengZhuoxinStructuralcompositionandworkingprincipleofconnectingdeviceofvariousEMUsonetwoThecompositionandfunctionoftheconnectingdeviceoftheEMUStructureandprincipleofvariouscouplerdevicesthreeTypesandstructuresofbuffersFourInsideandoutsidewindshieldofEMU

Whatisavehicleendconnectiondevice?Thetrainendconnectiondevicereferstoallthemechanical,electricalandairdevicesthatconnecttwovehiclesorbetweentwotrains.Itisanimportantcomponenttoensurethesafetyoftrainoperationandimprovethecomfortofpassengers.Thevehicleendconnectiondevicemainlyincludescouplers,buffers,windshields,shockabsorbersbetweenthevehiclebodies,airlineconnectorsandelectricalconnectors.Itistheexistenceofthecar-endconnectingdevicethatconnectsallthecarriagesandvehiclesinthetraintoformatruetrain.ThefunctionsoftheconnectingdeviceattheendoftheEMUaremainlydividedinto5types:①Connectionfunction:Connecttheindependentvehiclesintotrainsandkeepthematacertaindistancefromeachothertoprovidepassagesforpeople,especiallypassengertrains.

②Traction:Ittransmitsthetractionandbrakingforcebetweenthefrontandrearvehiclesduringoperation.③Bufferingeffect:Whenthespeedofthefrontandrearcarsofthetrainchangesneartheslopechangepoint,thebrakingforceofthefrontandrearcarsisinconsistentandthetrainisshunted,andthetwocarscollideduringtheprocess,itcanmoderateandattenuatetheimpactforcebetweenthefrontandrearcouplers.ThefunctionsoftheconnectingdeviceattheendoftheEMUaremainlydividedinto5types:

④

Decompositionfunction:Whenthetrain(train)cannotcontinuetoexist,itcanquicklydecomposethetrain.⑤Brakesignaltransmissionfunction:Whetheritisapureairbraketrainoranelectro-pneumaticbraketrain,whenthedrivergivesthebrakesignal,thebrakesignalcanbetransmittedthroughoutthewholetrain.ThecompositionofthevehicleendconnectiondeviceCoupler(tractionhitch)Itisusedtoensurethatthevehiclesareconnectedtoeachotherandmaintainacertaindistance,andtotransmittensileandcompressiveforces,mainlytractionandbrakingforces,andtoensuretherelativerotationbetweenadjacentvehicles.windshieldItisusedtoestablishaflexiblepassagebetweenadjacentconnectingvehicles.Thewindshieldcanbeasingle-layerwindshieldoradouble-layerwindshield,orawindshieldsystemcomposedoftwodifferentstructurewindshieldsinsideandoutside.Theinnerwindshieldmainlyprovidesfunctionssuchaspassageofpeopleinthecar,heatpreservation,airtightnessandwatertightness,andtheouterwindshieldismainlytoachieveasmoothconnectionandtransitionbetweenthetwoworkshops.ThecompositionofthevehicleendconnectiondevicebodyshockabsorberItisusedtosuppressthemutualshakingbetweenvehiclesandimprovethecomfortofthevehicle.airlineconnectorItisusedtotransmitthecompressedairrequiredbythebrakingsystemandvehicleequipment,aswellasthecompressedairrequiredbythecoupleruncoupling.electricalconnectorItisusedtoconnecthigh,mediumandlowvoltagecircuitsbetweenvehiclesandtransmitvariouscontrolsignalsandnetworkcommunicationsignals.PerformancerequirementsforcouplersofEMUs1.AutomaticcouplinganddisassemblyfunctionofcouplerincludingcircuitandgasconnectionWhentheEMUisinuse,itmusthavetheabilitytoquicklyformasmallcarintoalargeoneanddecomposethelargeoneintosmallones.Therefore,theclose-coupledcouplermustbeabletoautomaticallyconnectanddisassemble,andhasthefunctionofmanualconnectinganddisassembling.Foruseinspecialcaseswheretheautomaticfunctionfails.Thewindshieldandothercomponentsofhigh-speedtrainsoccupylimitedspaceattheendofthetrain,andalsobringinconveniencetotheinstallationandconnectionofairductsandelectricalconnectionsystems.UnderthetechnicalconditionsofmodernEMUs,dozensofcommunicationandcontrollinesneedtobeconnectedbetweenthetrains,sotheelectricalconnectionsystemisrequiredtobeminiaturized,withintegralandautomaticconnectionfunctions.Atthesametime,thetrainpipesandbrakepipesofthetrainbrakingsystemalsoneedtobeconnectedatthesametime.PerformancerequirementsforcouplersofEMUs2Couplerclearancerequirements

15couplerusedbyordinarypassengercarsinChinaismorethan30mm,andtheverticalheightdifferenceismorelikelytobeasmuchas75mm.Themostimportantandmostimportantreasonforthestrictcontrolofthelongitudinalclearanceafterconnectingisthatwhenthetrainrunsataspeedofmorethan160km/h,whenthespeedofthetrainchangesatthepointofchangeofslope,thedistancebetweenthefrontandrearvehicleschanges.Thecouplerwillbesqueezedorstretchedduetothespeeddifference.Thelargerthegap,thegreatertheforceofmutualcollision,andthegreatertheimpactonthequalityofthetrain.PerformancerequirementsforcouplersofEMUs3StrengthrequirementsThecouplerbufferdeviceplaystheroleoftransmittinglongitudinalforceinthetrain,andneedstobearacertaincompressiveloadandtensileload.ThepowercentralizedEMUrequiresthatthecompressiveloadofthecouplerisnotlessthan1500kNandthetensileloadisnotlessthan1000kN.ThecompressiveloadandtensileloadofthecouplerofthepowerdistributedEMUarenotlessthan1000kN.onetwoThecompositionandfunctionoftheconnectingdeviceoftheEMUStructureandprincipleofvariouscouplerdevicesthreeTypesandstructuresofbuffersFourInsideandoutsidewindshieldofEMUWhatisanEMUcoupler?TheEMUcouplerisadeviceusedtoconnectthevariousvehiclesinthetrain,totransmitandmitigatetheimpactforce,andtokeepthevehiclesatacertaindistancefromeachother.Includescouplerandbumper.EMUcouplerAccordingtothepositionandfunctionofthecoupler,itcanbedividedinto:AutomaticcouplerforbothendsofEMUIntermediatecouplerbetweenEMUvehiclesTransitioncouplerusedforEMUrescueinemergency.ClassificationofautomaticcouplersAutomaticcouplerscanbedividedintonon-tightcouplersandtightcouplers.Non-tightcoupling,alsoknownasnon-rigidcoupling,allowstwoconnectedcouplerstohaverelativedisplacementintheverticalplane.Closecouplingdoesnotallowrelativedisplacementoftwo-phasecouplingintheverticalplane,butallowsalittleinthehorizontalplane.corner.Thedifferencebetweenthenon-tightcouplingandthetightcouplingnon-tightcouplingcouplers①Simplestructure,highstrengthandrelativelylightweight②Theconnectionwiththecarbodyisrelativelysimple③GenerallyusedinrailwaypassengercarsandfreightcarsFeaturesoftheclose-coupledcoupler①M(fèi)ainlyusedforhigh-speedtrains,subwayvehiclesandurbanlightrailvehiclesSmallgapreduceslongitudinalimpulse②Realizetheautomaticconnectionofthegascircuitandthecircuitbetweenthevehicles,andtheautomationofthemarshalling③Reducethegapbetweenthecontactsurfacesofthetwocouplersandimprovethebalanceofthetrainoperation④Reducethewearbetweentheconnectingsurfacesofthetwocouplers⑤ReducethenoisecausedbytheimpactofthetwotrailerhooksagainsteachotherCommontypesofclose-fittingcouplersSchaffenbergercoupler:Europe,CRH3EMU,CR400EMUShibataclosecoupling:Japan,CRH2EMU,BeijingSubwaySchaffenbergercouplerShibataclose-contactcouplerSCHAFENBERG?Couplers_ScharfenbergTheprincipleoftheclose-coupledcouplerwasinventedbytheGermanKarlScharfenbergin1903andhasbecomeastandardconfigurationonEuropeanrailwaysandCRH3cars.Therearethreetypesofclose-coupledcouplersproducedbySCHAFENBERG:fullyautomaticcouplers,semi-automaticcouplers,andsemi-permanentdrawbars.Inrecentyears,ithasalsobeenwidelyusedinChina'shigh-speedEMUandurbanrailtransit:CRH-1EMU,CRH-3EMU,CRH-5EMU,CR400EMU,ShanghaiMetro,GuangzhouMetro,ShenzhenMetro,etc.SchaffenbergerautomaticcouplerTheautomaticcouplercanrealizetheautomaticconnectionofrailwayvehicles.Onceonecarisdriventotheotherandaligned,thecouplercanconnectthecarswithouthumanassistance.Evenwhenthereisahorizontalandverticalangleerrorofthelinkedvehicle,thiscouplercanrealizetheautomaticlinkingofthevehicle.Thecouplercanrealizetheverticalcurveandhorizontalcurvemovementandtherotationmovementoftheconnectedtrain.Inadditiontomechanicalhooking,electricorpneumatichookingisalsopossible.Afteruncouplinganddisengaging,thecouplerwillenterthereadystateagain.SchaffenbergerautomaticcouplerSchaffenbergerautomaticcouplerThestructureoftheSchaffenbergerfullyautomaticcouplercouplerhead

TelescopicoperatingrodUnlockinghandlefortelescopicdeviceRemovableguiderodUncouplinghandleexpansionlinklockingdevicemountingseatThestructureoftheSchaffenbergerfullyautomaticcoupleraOutercone1Connectingrod5Centerpinbinnercone2stop6tensionspringccouplerface3connectingrodpin7hookplategroovedcasingconnectionhoop4hookplate9hookheadboxHowtheSchaffenbergerfullyautomaticcouplerworksTheprincipleofmechanicallinkageandlockingmechanismTheconnectionofthecoupleriscompletedbyapairofrotatablehookplatesandconnectingrods,andthelongitudinalforceofthecouplerisbornebythehookplatesandconnectingrods.HowtheSchaffenbergerfullyautomaticcouplerworks1.PreparetoconnectThefrontfacesofthecouplerheadsdonotfittogether,andtheknucklecanbeseenattheopeningofthemalehammer.Whenhookedup,thespecialgeometryofthehookplateallowsthehooklocktorotateagainsttheactionoftheextensionspringuntilthepinattheendofthehooksnapsintothenotchinthehookplateontheoppositeside.Then,thetensionspringpullsthehooklocktorotateintheoppositedirection,returnstoitsoriginalpositionundertheactionoftheaction,andmaintainsthehookedstatetosecurelylockthepartinplace.HowtheSchaffenbergerfullyautomaticcouplerworks1.PreparetoconnectHowtheSchaffenbergerfullyautomaticcouplerworks2.ConnectedstateThefrontendsofthetwocouplersarecloselyattached,andthepinsattheendsoftheconnectingrodsfitintothenotchofthecouplerplateontheoppositeside.Whenhookedup,thehooklockformsaparallelogramtoensureequalizationofforces.Unexpectedunlockingisunlikely.Thehooklockissubjectedtoatensileloadevenlydistributedonthetwoconnectingchains.Normalwearandtearwillnotaffectthesafeuseofthehooklock.Theparallelogramforcecreatesabalanceofforces,resultinginahighlyreliableandsafelooselinkage.Ensuresrunningcomfortandanti-climbing.HowtheSchaffenbergerfullyautomaticcouplerworks2.ConnectedstateHowtheSchaffenbergerfullyautomaticcouplerworks3.UncouplingstateThehookplateofthecouplerheadrotatesagainsttheactionofthetensionspringundertheactionofexternalforce,andthepinattheendoftheconnectingrodisseparatedfromthegapoftheoppositehookplate.Thevehiclecanthenbeeasilyuncoupled.Thecouplerheadisdesignedinaspecialform,whichcanrealizetheuncouplingofthevehicleevenifthevehicleisinacurve,onaslopeorinatowingstate.Inordertoensureabsolutesafety,thevehiclecanonlybereconnectedafterthevehicleiscompletelyseparated.HowtheSchaffenbergerfullyautomaticcouplerworks3.UncouplingstateHowtheSchaffenbergerfullyautomaticcouplerworksManuallyunhookingWhenunhooking,justpulltheunhookingrope,orusetheunhookingaircylindertorotatethehookplate,sothatthepinoftheconnectingrodcanbeseparatedfromthegapoftheoppositehookplate,andthenthevehiclecanmovebacktorealizetheunhooking.Undertheactionofthespring,thehookplateandtheconnectingrodreturntotheready-to-connectstateHowtheSchaffenbergerfullyautomaticcouplerworkscouplerclearanceWhenthecouplerisintheready-to-connectstate,thevehiclemovesrelativetoeachother.Whenthefrontendofthecoupleriscloselyattached,thepinatthefrontendoftheconnectingrodsnapsintothegapofthehookplateoftheoppositecoupler,formingastableconnectionwithaverysmallgap.Withthenewlybuiltcoupler,theclearancecanbecontrolledatabout0.5mm.HowtheSchaffenbergerfullyautomaticcouplerworkscouplerrodThecouplerleverconnectsthemechanicalcouplerheadtotherubberbumperviaaremovablesleeveconnection.1punch;3SlottedNuts10StopRings;

5Crushtube1000kN±5%,185mmstroke;

6pins/pivot;8lockingdevice;20tierods;22Middleware;BufferstructureofSchaffenbergerfullyautomaticcouplerEnergyconsumptionofcrushingtubeThecrushingdeviceiscapableofdissipatingenergyifadefinedreleaseload(suchasheavyshocksandcollisions)isexceeded.Thisunitconsistsofapreloadedcrushtubeandapunch.Thepunchpressesintothecrushtubeandexpandsit,therebyconvertingbufferenergyintodeformationenergy.Allimpactenergyexceedingtheabsorptioncapacityofthecrushingdevicewillbetransmittedtothevehiclebody.crushtube

crushtube

HowtheSchaffenbergerfullyautomaticcouplerworksEFGrubberbumperWhenthecouplerissubjectedtolongitudinalimpact,therubberringisshearedanddeformed,andtheimpactenergyisabsorbedbythecharacteristicsoftherubber.Generally,thiskindofbuffercanmeetthebufferrequirementsof5km/hspeedvehicles.ThiskindofbuffercanbedesignedasEFG2with2rubberringsandEFG3with3rubberringsaccordingtodifferentcapacityrequirements.Figure6-15CharacteristicsofthebufferdeviceHowtheSchaffenbergerfullyautomaticcouplerworksEFGrubberbumperLinkedtothecoupler

Linkedtothevehiclebody

HowtheSchaffenbergerfullyautomaticcouplerworksEFGrubberbumperThestructureandbasicprinciplearebasicallythesameastheautomaticcoupler,andthedifferencesinclude:Thereisnocrushabledeformabletubeandnounhookingmechanism.Theconnectionoftheairlineisdoneautomaticallywhilethecouplerismechanicallyconnected.Theconnectionoftheelectrictrainlineisachievedbyconnectingtheelectricalconnector,whichrequiresmanualconnectionwithawrench.Uncouplingisdoneeitherbymanipulatingabuttonvalvelocatedontheundercarriageormanuallyonthetrackside.Whenthetwounitsaredisengagedandseparatedfromeachother,thecouplerreturnstotheready-to-connectstate.Schaffenbergersemi-automaticcouplerSchaffenbergersemi-automaticcouplerThecouplerisequippedwithanenergyabsorptiondevice,whichisgenerallyreferredtoasabufferdeviceoracouplerbuffer.Whentheimpactforceexceedstheinitialpressureofthespringbuffer,itabsorbsenergy(suchaswhensubjectedtoimpactandcollision).Theequipmentincludesagas-hydraulicshockabsorberandafrictionspringshockabsorber,whichcombinetodampenlongitudinalshocksandvibrationsbetweenvehicles,aswellasabsorbshockenergy.Frictionspringbuffersareusedtoabsorbenergyfromtractionshocks,andgas-liquidbuffersareusedtoabsorbenergyfromimpactshocks.Schaffenbergersemi-automaticcouplerbufferStrokeis23mmat600kNtractionand62mmat800kNcompression.Depletedenergyabsorptioncanbeguaranteed.Theimageontheleftshowsthecharacteristicsofthefrictionspringbumper.Therightsideshowsthecharacteristicsofthegas-liquiddamper;curveNo.1showsthedynamiccharacteristicsofthegas-liquiddamperataspeedof5km/h,curveNo.2showsthestaticproperties,andcurveNo.3showsthereleasecharacteristicSchaffenbergersemi-automaticcouplerbufferThesemi-permanentdrawbarisdesignedforconnectingseveralvehiclestoformaunitvehiclegroupthatisfixedinuse.Itdoesnothavethefunctionofmechanicaluncoupling.Unlessitisduetoanemergencyorforworkshopmaintenance,theunitvehiclegroupisnotused.needtobeseparated.Theuncouplingoperationneedstobecarriedoutinthedepotandisconnectedbyaneasilydisassembledsleevecoupling.Arigid,non-slack,secureconnectionisthusensured.Itisequippedwithaircircuitandcircuitconnection,andalsohasabuffer,andthecrushabledeformationtube(typeA)islocatedatthe1-positionendoftheBcarandtheCcar.TypeBisinstalledatthe2-positionendoftheAcarandthe2-positionendoftheBcarwithoutthecrushabledeformationtube.Schaffenbergsemi-permanentdrawbarSemi-permanentcouplersareusedfortheconnectionbetweenonecarandonecartoformasingle4carunit.Connectingandunhookingoperationscanonlybeperformedinthemaintenancelibrary.Therearetwotypesofsemi-permanentcouplers,onewithacrushtubeandonewithout.Schaffenbergsemi-permanentdrawbar1-snapring;2-couplertowbar;3-rubberpadhooktailseatSemi-permanentcouplerwithcrushtubeSchaffenbergsemi-permanentdrawbar1-couplertowbar;2-rubberpadhooktailseatSemi-permanentcouplerwithoutcrushtubeSchaffenbergsemi-permanentdrawbarcompressivestrength1500kNTensileStrength1000kNcouplerlengthFromfacetopivot1131±5mmCouplerinstallationheightcenterlineheight1000±10mmCouplerdrawbarwithfrictionspringjourneytractionmakeanappointment

23mminitialpressurestatic,whenpullingmakeanappointment

60kNresistancestatic,whenpullingmakeanappointment

600kNCouplerdrawbarwithbufferjourneybufferabout62mmresistancebufferApprox.800kNinitialpressurestatic,whenpullingabout80kNMaximumswingangleofcouplerlevelabout±20°verticalabout±7°Semi-permanentcouplermaintechnicalparametertableSchaffenbergsemi-permanentdrawbarsemi-permanentdrawbar1—Supportseat;2—Drawbarwithdouble-actingringspring;3,6—Electricalconnectionbox;4—Airduct;5—Sleevecoupling;7—Drawbar;8—Transitionplate.Schaffenbergsemi-permanentdrawbarIn1929,ShibataWeishiproposedthedesignschemeoftheclose-coupledcoupler.In1931,thedevelopmentandthecurrentvehicletestwerecompleted.In1932,itwasfullyadoptedonthenewelectricvehiclesinJapan.Afterthat,mostoftheelectricvehiclegroupsadoptedShibata'sclose-coupledcoupler..Thistypeofcouplerismainlycomposedofhookhead,hooktongue,releasecylinder,hookbody,hooktailandotherparts.Thehookheadisaconvexconewithaplane,andthesideisahookbodywithaconcavehole.ShibatacouplerShibatacouplerThestructureofShibatacouplerShibata-typeclose-contactcouplerbufferdevice1-hooktongue;2-unhookingairductconnector;3-mainairductconnector;4-cut-offplugdoor;5-hookbody;6-buffer;7-brakeairductconnector;8-electricalconnector.ThestructureofShibatacouplercouplerhead

piston

Uncouplingcylinder

pistonrod

Concavecone

couplertongue

convexcone

HowShibatacouplersworkTheprincipleofmechanicallinkageandlockingmechanismWhenthetwohooksareconnected,theconvexconeisinsertedintothecorrespondingconcaveconeholeoftheotherside.Atthistime,theinnersideoftheconvexconepressestheopposingtonguetorotateduringtheadvance,sothatthespringoftheunhookingaircylinderiscompressed,andthetonguerotates40degreescounterclockwise.Whentheconnectingsurfacesofthetwohooksareincontact,theinnersideoftheconvexconenolongerpressestheother'stongue.Atthistime,duetotheactionofthespring,theclockwiserotationofthetonguereturnstoitsoriginalstate,thatis,itisinthelockedposition.HowShibatacouplersworkclose-coupledcoupler1-hookhead;2-hooktongue;3-unhookingrod;4-spring;5-unhookingaircylinder.HowShibatacouplersworkhookheadhooktonguereleaseleverspringThestatebeforetheclose-contactcouplerisconnected①ConnectingpreparationsHowShibatacouplerswork②ConnectingprocessWhenthetwohooksareconnected,theconvexconeisinsertedintothecorrespondingconcaveconeholeoftheotherside.Atthistime,theinnersideoftheconvexconepushestheotherside'shooktonguetomakeitrotate.Atthistime,thespringoftheunhookingaircylinderiscompressed,andthehookTonguerotation.Whentheconnectingsurfacesofthetwohooksareincontact,theinnersideoftheconvexconenolongerpressestheother'shooktongue.Duetotheactionofthespring,thehooktonguerotatesintheoppositedirectionandreturnstoitsoriginalstate.hang.hookheadhooktonguereleaseleverspringClose-contactcouplerinthestateofbeingconnectedHowShibatacouplerswork②ConnectingprocesshookheadhooktonguereleaseleverspringThestateaftertheclosecouplingcouplerisconnectedHowShibatacouplerswork②ConnectingprocesshookheadhooktonguereleaseleverspringThestateaftertheclose-contactcouplerislockedHowShibatacouplerswork②Connectingprocess③UnhookingprocessWhendecoupling,thedriveroperatesthedecouplingvalve,andthecompressedairentersthedecouplingaircylinderofthevehiclefromthemainairduct,andatthesametime,thecompressedairissenttothedecouplingairofanotherconnectedvehiclethroughthedecouplingairductconnector.cylinder,thepistonrodpushesforwardanddrivestheunhookingrod,sothatthehooktonguerotatestotheunlockingposition,andthetwohookscanbeunhookedatthistime.Whenmanuallyunhooking,justpushtheunhookinglevermanually,sothatthehooktonguerotatestotheunlockingposition,soastorealizethedisassemblyofthetwohooks.HowShibatacouplersworkhookheadhooktonguereleaseleverspringThestateoftheclose-contactcouplerbeforeuncouplingHowShibatacouplerswork③UnhookingprocessHooktonguelock

hookheadhooktonguereleaseleverspringClosecouplingcoupleruncouplingstateHowShibatacouplerswork③UnhookingprocessHooktonguelock

hookheadhooktonguereleaseleverspringClosecouplingcoupleruncouplingprocessHowShibatacouplerswork③UnhookingprocesshookheadhooktonguereleaseleverspringThestateoftheclosecouplingcouplerafteruncouplingHowShibatacouplerswork③UnhookingprocesstransitioncouplerIftheEMUfailsduringoperation,resultinginlossofpower,whenitneedstobereturnedtothemaintenancewarehouseformaintenance,itisnecessarytousealocomotiveorotherEMUtorescue.transitioncouplerBecausethetransitioncouplerisatemporarydevice,itisalightweightdesigninstructure,anditsstructuralstrengthisonly400KN.transitioncouplerThestructureofthetransitioncouplerTransitioncoupler:1.Auxiliaryhook2.No.10transitioncoupler3.Brakeduct4.Mainairduct5.Anti-jumppin6.Connectingrod7.Knuckle8.No.15transitioncoupler9.Dustplug10.ConnectingpinParametersofthetransitioncouplerserialnumberginsengnumberunitwantbegging1Trainmaximumconfiguration2-row8-carunitcombination2trainmaximumweighttabout5363CRH3EMUcoupler10coupler4CouplermodelsofChineselocomotivesAARtype5CRH3EMUtotherailsurfacemm10006TheheightofthecenterofthecouplerfromtherailsurfaceoftheChineselocomotivemm8807TransitioncouplercompositionPart1:SchaffenbergNo.10Hook;Part2:PartsforTransitionsofDifferentHeights;Part3:ChineseCoupler(AARModel)Hook8NumberoftransitioncouplersOnesetpertrainMaintechnicalparametersoftransitioncouplerParametersofthetransitioncouplerserialnumberginsengnumberunitwantbegging9Totalweightofallpartsofthetransitioncouplerkgabout10510Compressedairsupplythroughthemainaircylinderpipe11Maximumtrackgradientinthetrainsection‰30(partial)12Maximumstartinggradient‰1213Maximumoperatinggradient‰2014allowable(traction/drag)speedkm/hDependsonthespecificsofeachcaseandthebrakingcalculation15TensileStrengthkN35016compressivestrengthkN400Maintechnicalparametersoftransitioncoupler1.BrakingSystem:TheEMUisanall-electriccommandbrakingmethod.Asabasiccondition,thebrakingsystemalsoneedstobeactivatedduringthetractionoperationofthelocomotive,sotheDC100Vpowersupplymustbeensured,andtheDC100Vcanbepoweredbythebatterymountedonthetrain.2.TotalDuctPressure:Connectthelocomotivewiththemainairducthosetosupplythemainairductpressureof600KPa.Precautionsfortheuseoftransitioncouplers3.Brakecontrol:Connectthelocomotivetothebrakepipehose,andusetheair/electricalreplacementdeviceoftheleadvehicletoconvertthebrakepipepressureintoelectricalcommandstoallowtheairbraketowork.4.Drivingspeed:30km/h(rescuespeed).PrecautionsfortheuseoftransitioncouplersHowtousethetransitioncouplerThetransitioncouplercanmakethelocomotiveequippedwiththeChinesestandardcouplertowtheEMUinemergency.Thetransitioncouplerisapermanentpartofthecarset,whichisplacedunderthefloorofthefirst-classcarFC05,andisdividedintothreepartsforplacement.Whenused,theyareassembledtogetheraccordingtotheprescribedsteps.Storagelocationoftransitioncoupler

Theuseofthetransitioncouplerisasfollows:1.Deactivatetheelectrichookoperatingmechanismandkeeptheelectrichookinitsretractedposition.2.CheckwhetherthecouplerlockoftheNo.10automaticcouplerisintheready-to-connectposition.3.CleanthecontactsurfacesoftheadaptercouplerandtheNo.10a