讲义说明成果max8我-umentsection

LHMachineryHouseServiceCrane（SectionItemName:DubaiSerialShanghaiZhenhuaHeavyIndustry(Group) Elevator Address:No.23 Road,huishanEconomicDevelopmentzoneShenbeiNewDist, , 维车使用说明书 维车安装手册Installation计算书CalculationSheetofMaintenance机械图纸Machinery电气图纸ElectricLCL安装手册InstallationMethodAnd变频器参数表ParameterlistofABBLHTypeOverheadTravelingCraneWithElectricHoistInstructionShanghaiZhenhuaHeavyIndustry(Group) ElevatorCo., TheTableof Introductionofmachine Powersupply Installationand Hoisting Rope Ratchetanddetent Hoisting Modeofpower Componentsrejection Wire Hook&pulley Commontroubleand Commissioningprocedureofratchetand Designandmanufacturingisbasedthenationalstandard:GB/T3811-1983"hoistdesignspecification"GB/T6067-1985"safetynormofthehoist" MechanicalindustrystandardJB/T3695-1994"bridgetypehoistoftheelectroniccalabash"andrefertoF.E.Mstandard"Europeanhoistingmachinerydesignspecification"andrelevantstandardsofourgroupZPMC.Thestructuralpatternofmachineryhouseservicecraneisdoublebeamselectrichoistoverheadtravellingcrane.Itismainlycomposedofgantrycarriage,trolleycarriageandgantrytravel,trolleytravel,andhoistingmechanism,etc..(gantry,tracksupportandlightinginmachineryhouseshouldbedbycustomer,andlightingshouldensuretheilluminateduringoperatingandmaintenance).Thematerialandlubricantsofthepartsshouldbeusedwhichisharmlesstohumanbody.Gantryisthemainpartofthemaintenancecrane.Thefeatureofeachsectionmeasuresuptheconditionofstress.Thesectionprovides1‰camberwhendesigningandmanufacturing,inordertosatisfytherequirementoftransformingcausedbyvarioussortsofratedloadliftingcapacity.SteelcomponentsareweldedbyshieldedCO2arcwelding.AndalltheimportantweldinglinesbyUT(UltrasonicTesting),MT(MagneticParticleTesting).Intheprocessofmanufacture,thearchandsidewisebendingonthegantrybylaser.Andwealsouselaserformakingoffthewheelspanofgantryandtrolleytoensuretheaccuracy.Itsadvantagesissomany,includingrationalstructure,estheticappearance,steadyoperation,beingsafeandreliable.Applicableworkingenvironment:CompletemachineworkingrankisA2,hoistingmechanismworkingrankisM3,gantrytravelmechanismworkingrankisM2,trolleytravelmechanismworkingrankisM2.loadstatesofthemareL2（seemechanismstandardloads）.Andiftheworking-levelbeyondtherequirements,thatshouldbestateddetailedlytotherinadvance.MechanismstandardWorkingambienttemperature:-25-+50TherelativehumidityisnotmorethanConditionaboveissuitablefornormal,doesnotapplyinpotentiallyexplosiveenvironmentsorcorrosivegasmedia,andprohibitfortransportingthetoxic,flammable,explosiveorotherdangerousgoods.IntroductionofmachineMachineryhouseservicecraneismadeupofgantry,hoistingtrolley,andcabletracksupportandpowersupplysystem.(SeeFig.1)Structuralpatternsofpowersupplysystemofgantryispowerrailconductorsystem;hoistmotorisdualwindingmotor;gantryandtrolleytravelmotorisvariablefrequencymotor.Thetechnicalparametershallrefertomainparametersheetonteraldrawingandgeneraldrawingsoftheattachedfileofmachineryhouseservicecrane.Fig.1machineryhouseservice1. 2. 3.cabletrack 4.powersupplyThepartofgantryismadeupwithcarriage,platformandrail,electricalcontrolbox(CONTRALBOXA),"trinity"decelerator,drivingwheelunit,buffer,sweepplate,drivenwheelunit,gantrycablelead,anti-jumpplate,limitswitchdevice,rubberycushion,baffle,trolleypowersupplysystem(dividedintotowingcable,powerailenclosedconductorsystemandcabletowchain),andstandardcomponents.(seeFig.2)Fig.2Gantryofmachineryhouseservicecrane 2.platformand 4.“trinity”5.drivingwheel 6. 7.sweep 8.drivenwheelanti-jump 10.gantrycable 11.limitswitch12.powersupplysystemof 13.rubbery 14.Thestructuralpatternoftrolley(SeeFig.Fig.3Dualrollerscranecarriageofmachineryhouseservice1.Trolley 2.Right-turned 3.Camlimit4.Electricalcontrolbox 5.Height 6.Heavyhammerlimit7.Camlimitswitch 8.Left-turned 9.10.（CONTRALBOXB）electricalcontrol 11.Limitswitch12.Limitswitch13.Anti-jump 14. 15.Drivenwheel 16.Trolleycable17.Wire 18.Drivingwheel 19.“Trinity” 20.Rubbery21.Thetrolleyismadeupofthetrolleycarriage,therollerassembly,camlimitswitch,camlimitswitchsupport,heightlimitdevice,heavyhammerlimitswitch,"trinity"decelerator,drivingwheelunit,rubberycushion,baffle,drivenwheelunit,controlboxsupport,controlbox(CONTRALBOXB),trolleycablelead,buffer,themountingplateoflimitswitch,limitswitch,wirerope,hook[dividedintotimesrateofpulleyis4/2(seeFig.3)andstandardcomponents.PowersupplyPowersupplysystemisdividedintogantrypowerailenclosedconductorsystem,trolleycabletowing.Powerailenclosedconductorsystemiscomposedbypowersupplydevice,fixedclip,hanger,slipperyline,connectingclip,endcap,collectingelectricapparatus,tractorandstandardcomponents.(seeFig.5)Fig.5powerailenclosedconductor1.powersupply 2.collectingelectric 3.Fixed 4.5.connecting 6.slippery 7.End 8.Cabletowingiscomposedofendcap,ModelCguide,hanger,connector,tackle,fixedtackle,wirerope,guyrodunit,cable,standardcomponents.(SeeFig.Fig.6cable1.End2.3.ModelC 4.5.Guyrod6.Cable7.Steel 8.Fixed 9.InstallationandTheinstallationandadjustmentofmachineryhouseservicecranemustbeoperatedbyprofessional nel;laymancan'tbeengagedinthis.Beforeerecting,pleasecarefullycheckifthesparepartsisdamagedorlostwhiletransportationandconfirmwhethertheproductsaccordwiththetechnicalparameterofthisprojectandtechnicalrequirements.Note:FallingCheckallthetoolsandsparepartscarefullyafterinstallationandTravelingmechanismismadeupofgantrytravelmechanismandtrolleytravelmechanism.Gantrytravelmechanismismadeupoftwogroupdrivingwheelunit(twogroupsof“trinity"decelerators)andtwogroupsofdrivenwheelsassembly.(seeFig.8,Fig.9) Fig.8drivingwheel1.Bearing 2.Shield 3. 4.Axle5. 6. 7.Driving 8. 9.“Trinity”Shield 11.Connectingpipeofoil 12.OilFig.9drivenwheel1.Oil 2.Driven 3.Shield 4.Shield5. 6. 7.Spacer 8.Drivingwheelassemblyrelieson“trinity”deceleratorthatdrivesdrivingwheelunitanddrivenwheelunittomakegantryandtrolleyoperatethroughkeyaxle,itisthroughbuttoncontrollertocutpowertooperate.Thebrakeisinsidethetravelmotor,normallyclosedandpowerlost.Whenpoweriscut,itisbrakestateandwhenpowerisnormal,itisoffstate.Brakeintervaloffrictiondischasalreadyadjustedwellwhenleavingthefactory.The“trinity“deceleratoristhatthemotorconnectswithdeceleratorthroughshaftcoupling.Thedeceleratorandwheelkeyaxleisinsertedmode,Lubricatingoiladditionalmustbeinjectedintodeceleratorbeforeoperating,1.8litersfordeceleratorofgantry,1.5litersfordeceleratoroftrolley,usingL-CKC150inwinterandMobilgearSHC220insummer.FullyinjectthecalciumbaselubricatinggreaseNo.3whileinstallingdrivingwheelunitanddrivenwheelunit,andmaketheoilnozzleisfull.Wheelstepsurfacekeepsinfulltouchwithtrack,itsleveldegreedoesnotexceed1mm,andstraightlinedegreewiththesidewheeldoesnotexceed2mm.HoistingThehoistingmechanismisdualrollers,timesrateofpulleyis4/2.Dualrollersiscomposedofleftturnedrollerandrightturnedroller,otherpartsofrollerandontherolleraremadeinpairs,fixedsymmetrically.Leftorright-drumisfixedonthetrolleycarriagethroughM24×38(8.8grade)boltsandbiauricularwashers,anditstwistingtorqueis510Nm.Theworkingprincipleofhoistingmechanism:hoistingmotorisinstalledatswitchingplate,whichconnectswithrollersupportthroughtransitionplate,anothersideisinstalledontherollersupportthroughthebearingonthebuilt-instubaxleofroller,theaxleofmotorjoinsonthebuilt-inplanetarydeceleratoroftherolleranddrivestherollerthroughtheplumblossomtypeshaftcoupling,makethewireropewoundontworollersdrivehookstoriseanddrop.(SeeFig.Fig.11left-returned(Right-turnedrollerplacedsymmetricallyaccordingtothis1.Endcapofbearing2.Shieldbearing3.bearing4.pressingplateofsteel5.sealingring6.wirerope7.left-turnedroller8.left-turnedrollersupport9.planetarydecelerator10.transitionalplate11.changeoverplate 12.couplingwithspider13.hoistingmotor14.Ratchetanddetentmechanism15.anti-reversion 16.ropeBuilt-inplanetarydeceleratormustbeinjected2.5litersoflubricatingoilbeforeinstallation,usingL-CKD220insummer,MobilgearSHC220inwinter.(seeFig.12) Fig.12planetary1.fillerandbreather 2.fuellevel 3.drainTheinstallationofwirePullingoutthewireropefromtheropebarrel,makesuretheropebarrelcanrotatingfrollery,andpullingoutitalongthetangentdirection.Installthesteelwireontherollerbythreegroupsofpressingplateserectingontheroller,andeachpressingplatesarefixedonthetrolleycarriagebyM24×38(8.8grade)boltsandbiauricularwashers,anditstwistingtorqueis150Nm,maketheircoilingonthisrolleraccordingtoprojectdemandlengthofwirerope,penetrateintoonepulleyandcranecarriagebridgeofhighlimitlocationdeviceatthefixedpulleyofdevicewithanotherendofwirerope,thenreturnandpenetrateanotherpulley,finallyinstallandfixthewireropeonanotherrollerbythreegroupsofpressingplates,startthisrolleralone,itisthesametomakethetyofthewireropeofwindingroller.(SeeFig.3)RopeThedirectionofturningofropeguiderisdividedintoleftandright,forinstallationontheleftturnedroller;forrightinstallationontherightturnedroller,thepressingplateerectedonthewireropewhichpreventsfromhop.(SeeFig.Fig.13rope1.rope 2.enteringsling 3.guidingrope4.rolling 5.blockingslingRatchetanddetentRatchetanddetentmechanismisalsocalledthesecondbrake,whichiscomposedofratchetwheel,washier,cam,butterflyshapespring,cardboard,axle,axlesleeve,detent,limitcamswitch,extensionspring,guideroller,adjustedspiralspoleandstandardcomponents.(seeFig.14) Fig.14Ratchetanddetent1. 2. 3.antvibration 4.brake 5.butterfly6.fixing 7. 8.axle 9. 10.limitextension 12. 13.adjustingAtadherebrakedisctothegrooveintheratchetwithglue,andthenapplythecammechanicallythroughthewashier,installbutterflyshapespringontheM16×130hexagonsocketheadboltandfixtworatchetonroller(tighteningtorqueis150Nm);Theguiderollerisfixedondetent,penetrateaxledetentthroughaxlesleeveonfixingplateandfixitonrollersupport;atlasthangtheextensionspringonthedetentandadjustingscrew,adjustscrewandregulatetheextensionofthespring.Thestructureofratchetanddetentmechanismisone-wayintermittent,dependingonthepullingforceofthespring,guiderollerstickstocamoutlinecloselytomove,whenrisingrollerwithnormalspeedturnsround,guideroller’smovementisconcaveandconvex,whichdrivingdetent, ingthepullingforceofspring,incertainamplitude(seeFig.15,Fig.16,Fig.17)actingthecyclesimilartotheSINfunctiontoswing.Asrisingrollerexceedingnormalspeedrotates,thepullingforceofspringutilizesfrequencyconvertertodebuginadvance,whichhashighsensitivities,andthetightnessofspringhasbeencalibrated,doesnotallowadjustingatwill.Asfrequencyonlyexceeds5-10Hz,therotationalspeed“n”israisedby5%(seeFig.18,Fig.19,Fig.20),ASillustratedinfig.16,17,19,20AisthebeginningoftheoperationBisthebeginningoffaultTechnicalTeamDetentinstantlyinsertsamongtheteethspacesofratchettomakerollerstoprotating,playingpoleinstalledlimitswitchatfixingplatetouchendtosqueezeintoandcutoffpoweratthemeanwhile,preventingtherollerfromrotatingandmakethehookstopdropimmediaythroughthedoubleprotectionofmovementofmachineryandelectric.HoistingThehoistinglimitiscontrolledbytravellinglimitChart21limitcam1. 2.universal 3.gear 4.memory5.adjusting 6.locking 7.limit4journeyswitchesaresetrespectivelyinrollersupport,i.e.B11,B12,B13,B15andB21,B22,B23,B25.Frogisfixedonropeguider,whioveswiththetyofthesteelwirefromleftsidetorightside,frogcollideswith2groupsofjourneyswitchestolimittheheightandmakethehookstoprunning;Whenthehookdropstothelowerlimitposition,knocktheB12,B22switchtoopen,middlerelayQ12,Q22losetheelectricity,thehookcannotlowerdowntogetthestoplimitpurpose.Whenthehookrunsuptothemachinehousegroundorlowersdowntothegroundposition,knocktheB12,B22orB15,B25toopen,connectorQ23,Q13losetheelectricity,thehookcannotrunsquciklytodeceleratethespeed;Whenthehookrunsuptotheuplimitposition,knocktheB11,B12toopen,liftingconnectorQ11,Q21losetheelectricity,thehookcannotrunsupwardstostopattheuplimit;Theadjustmentof2groupsofjourneyswitches:2groupjourneyswitchesarefixedon4stencilplateswithrectangularhole,onethatisthroughjourneyswitchmovementtogettheresultoffinelyadjustmentbysettingfromsidetoside.(seeFig.22)Fig.22journeylimitTheheavyhammerlimitswitchissetonthehighestlimitlocation,itisinstalledandfixedontheheightlimiterofthetrolleycarriage,whenupperlimitswitchdoesnotwork,pulleyblockwillcarryheavyhammeroflimitswitch,turnontheheavyhammerlimitswitchtocutpower,thehookstopsrising.ModeofpowerThemodeofpowersupplyisdividedintopowerailenclosedconductorsystemandcabletowing.PowerailenclosedconductorWithfixedclipandhangerinsertinginslipperyline(fourmetersperpc)fromverybeginning200mm,installtheslipperylineaccordingto1200mmdistancefromverybeginning200mm,thenputcurrentcollectorintoslipperyline,fixhangerandfixedcliptheanglesteeloftracksupport,jointtwoslipperylineswithconnectingclip,installthepowerboxinclosetocontrolbox,anotherinstallsendcap.Weldtheelectricapparatusaccordingtothecurrentcollectorandthetractorwiththeparallelposition,afteradjustingthepositionoffixedclipandhangertomaintainparallelbetweenslipperyandservicecrane,slipperylineoflinedegreeisnotgreaterthan1.5mm/m,makesurestraightlinedegreeofallthelinemaintainingparallelwithslipperylineinitselfandmechanismhousenotgreaterthan15mmafterfinishingtheinstallation.(seeFig.5)cableWithhangerinsertingModelCtrack(6metersperpc)accordingtothedistancedesignatedinthedrawingfromverybeginning200mm,installingitontheModelCtrackseparay,andthenputthemintheModelCtrackaccordingtothetyofcabletrolleyandonefixedtrolleydesignatedinthedrawing,jointwoModelCtrackswiththeconnector,mountinocapendsontwoendsseparay.Cabletrolleyisfixedinclosetocontrolbox,fixModelCtrackontheanglesteeloftracksupportthroughhanger,andtheninstallthecableandwireropeoneverycabletrolleyandfixedtrolleyintheequallengthrespectivelyaccordingtothedemandoftheproject,andfinallyfixthefixedtrolleyattheoneendofModelCtrack,withguyrodunitassemblyandcableguideholefixingonthecranebridgetoconnectthecabletrolleyonanotherside.(seeFig.6)SupplyControllingsystemofservicecraneiscomposedofhoistingmechanismcontrolsystem,trolleymovingcontrolsystem,gantrymovingcontrolsystem.Thecomponentsofhoistingmechanismcontrolsystemandtrolleymovingcontrolsystemaredistributedinabigcontrolbox,andthecomponentsofgantrymovingcontrolsystemisdistributedinasmallcontrolbox,theoperationofservicecraneisrealizedbythebuttoncontroller.Buttonstationandcontrolboxarerespectivelyequippedwithemergencystopbutton,andpresstheemergencystopbuttontocutoffthepowerunderemergency.ModeofHoistingsystemofservicecraneisdualwindingmotorcontrolsystem;Movingsystemofgantryandtrolleyisvariablefrequencycontrol.ThemakeupofhoistingcontrolThedualwindingmotoriscomposedoftheaircircuitbreaker,maincontactor,positiveandnegativecontactor,fastandslowcontactor,relay,journeylimitswitch,etc..TheelectricprincipleisasfollowsFig.7-3A.7-3AControldiagramofdualwindingconicalrotorhoistingThemakeupofmovingcontrolThemovingcontrolsystemofsinglespeedmotoriscomposedofaircircuitbreaker,positiveandnegativecontractor,relay,journeylimitswitch,etc..TheelectricprincipleisasfollowsFig.7-4A. 7-4AControldiagramofsinglespeedClassificationofrelayThepatternofthehoisting,downwardrelayswitchandup-downstopswitchisrockerarmtypejourneylimitswitch.Thepatternofjourneyswitchofgantryandtrolley:crosstypejourneylimitphaselackandphasedislocationThephaselackandphasedislocationprotectionofsupplyingpowerisfinishedbyphase-sequencerelay,asphase-sequencethatspowerisunderphaselackandphasedislocation,whichwillnotwork.Theweightofhoistingsystemiscontrolledbyover-load,realizinglightload,highspeedandstophoistingwhenoverloading.Theover-loadismadeupofthecontrollerandweighttransducer,andthecontrollerisinstalledinthebigcontrolbox,andtheweighttransducerisinstalledontheaxleofthefixedpulleyinthemiddleoftworollers.Theover-travelprotectionofhoistingmechanismiscomposedofupper,downwardrelayswitch,upperstopswitch,lowerrelayswitch,laylastswitch,heavyhammerlimitswitch(tworollershavetheirownupper,downwardrelayswitch,upperstopswitchandlowerstopswitchseparay),whichguaranteethehookcanrunintheestablishedrage.Thetravelprotectionofgantryandtrolleyiscrosstypeswtichwhichensurethegantryandtrolleycanrunintheestablishedrange.Over-speedprotectioniscomposedoftheratchetwheelanddetentofmachineryandover-speedlimitswitchinelectricalrespects.Ratchetwheel,detentmovementmakerollerseizedwhenthedropspeedexceeds1.4timesoftheratedspeed,atthesametimeover-speedlimitswitchstoploweringandthemotorisblackout,butcanrisewhilebeingrangingatthismoment.Theover-speedlimitswitchisself-lockingjourneylimitswitchandmustberestoredbyhand.ButtonButtoncontrolleriscomposedofemergencyswitch,powerswitch,fastandslowtransitionswitch,upswitch,downswitch,seasideswitchoftrolley,landsideswitchoftrolley,forwardswitchofgantry,backwardswitchofgantry,whichrealizetheoperationofservicecrane.(SeeFig23)Fig.23buttonOperatingTheoperatorcanworkholdthecardafterpassingtheexaminationtrainingandexamining,whoalsofullygraspstheoperationalprocedure.Pleasereadtheoperationinstructionscarefullyandforbidthe withoutlicensetooperateandservicecrane.Inviewoftheuseofthespecialnatureofthemachineroom,someplacescannotsatisfythesafetyrequirementsspecification,sooperationandmaintenancemustbesupervisedbyprofessional.Beforeoperating,theoperatormustlookoverifthecomponentsofgantryandtrolleyoftheservicecraneisperfect,fuel-injectionoflubricatingpartsisabundant,theparameterofcontrolpowerisinconformitywiththemachineparameter,pleasebefamiliarwitheverybuttonoffunctionsatbuttoncontroller,pressbuttontocheckifthehookrunsupanddownwell,therunningdirectionofgantryandtrolleyisright,emergencystopbuttonisundergoodcondition;whencommissioningwithoutload,checkthehoistingmechanism,gantryandtrolleydonothaveabnormalsound,allswitchedareallergicandthescopethatthehookcanreachsetswarmingmarks.Duringoperating,forbiddentostandunderhook,forbiddentocarryanyhumanbeing,noliftingwhiletheliftingobjectsareswingingandforbiddenanyobliquelift,neverliftanythingconnectedtothegroundandneverpullotherobjectsbywireofbuttonstation,donotpressthebuttontoofrequency,andthecamlimitswitchisaprotectivedevice,itshallnotbeusedrepeatedly;cautionwhentheliftingloadandhoistingspeedaredifferent!Whenthespeedishigh,theliftingloadissmallandoverloadisnotallowed;normalworkingnoiseofcompletemachineisbelow80db;duringoperating,iftroubleshappen,cutoffthegeneralpowerandaskprofessional neltomaintain.Afteroperating,forbiddentohangtheobjectsuspendedintheair,trolleyshouldbeparkedinthemiddleofthebridgeandthehookshouldbeparkedatupperlimitposition. nelmayleavebeforethreestepsinsequence,presstheemergencybutton,thenputitintotheboxandlocked(ifequipped,thatshouldbeopenedbyauthorized ),cutoffteralpower.Theservicecraneshouldbemaintainedregularlybyprofessional Avoidtheriskofaccidentsbycarefullystudyingtheseinstructionsregularlyandcheckallthetoolsandspareparts.Thinkclearly.Donotrushtheworkandalwayschecktomakecertainthattheworkisbeingdoneproperly.Lubricatingoil:theplanetarydecelerator,gantryand"trinity"deceleratorshallberenewedeverythreemonths;afterworkingfor150hoursforthetime,changelubricatingoil;checktheoillevelregularlyeveryweekandifthereisabnormalnoises,checkoilonceeveryhalfayear,changethelubricatingoilafterworking1500hour(accordingtothe)oreveryyear.Thetemperatureoflubricatingoilcanreach90℃.Otherpartswithbearingshouldbelubricatedeveryweek,andchangethelubricatinggreaseduringtheoverallinspectioneveryyear.(seethepicture24,table2)Fig.24PositionofinjectingList bearings（see1、2、4、5、16、17、18、21、22、3no.Ca- （see19、SummerL-WinterMOBILGEAR1.7 mechanism(06seatno.13、SummerL-WinterMOBILGEAR1.5 mechanism(08seatno.3、SummerL-WinterMOBILGEAR2.7Thesurfaceofropeguiderandwireropeshouldbelubricatedeverythreemonths.Checkthewearingandtearingofropeguiderandpresswheel,thewirerope,hook,pulley,wheelshouldbeunderobservationwhenworking,thecoolingductofmotorshouldbecleanedregularly,oftencheckwhetherthecoversofallelectricequipmentareconnectedtotheground,whetherallelectricalpartsarefixedtightly,whetherallswitchesareallergic,maintainorchangeimmediaywheneveranyvulnerablepartisabnormal.Ifwireropetwiststogether,itindicatesthatwireropehastwisted-power.Usersshoulddisassemblethewireropeofeachside,releasethetwisted-powerevery3months,andthenreinstallthewirerope.DisassemblyofWireRemovetheropeguiderfromtwoStartoneofthedrum,pullthewireropeoutandleave3Starttheseconddrumandcirclethewireropearoundittillthehookfallingonthegroundofmachineroom.Remove3groupsofpressingplatesfromthedrumwhichleaves3laps,pullofwireropeoutfrombalancepulleyandhook.Starttheotherdrum,pullthewireropeoutandleaveabout1circle,remove3groupsofpressingplatesfinally.InstallationofWirePulloutthenon-rotatingwireropefromtheropebarrel,makesuretheropebarrelcanrotatefreely,andpulloutitalongthetangentdirection(note:hadbettermaketheropebarrelgofurtherawayfromthedrumsothattoreleasethetwist-power).Re-circlethenon-rotatingwireropeonthedrum(note:hadbettermakeaeasyrope-pressingdevicetoreleasepowerbyextrusionstress),pulloneoftheendofwireropeintothepulleyofhookandthebalancepulleyontheheight-limitdeviceoftrolleyframe,returnandpullbackintotheotherhookpulley.Finally,installthesteelwireontherollerbythreegroupsofpressingplateserectingontheroller,andeachpressingplatesarefixedonthetrolleycarriagebyM24×38(8.8grade)boltsandbiauricularwashers,anditstwistingtorqueis150Nm.startthisdrumaloneandmakethetyofthewireropeofdrum.Reinstalltheguiderandpayattentiontotheturningdirection.Afterverylongtimeoperationofservicecrane,someofitscomponentsareunavoidabledamagedandworn,somustbereplacedandrepaired.Wirerope（seelistWireroperejectionaccordingtobrokenwireWirerope18×19＋FC-15-brokenwireamountinoneEntwisteachEntwistinone64868Afterrustedorwornonthewirerope,reducebrokenwireamountforrejectionintheaboveformaccordingtotheformbelowandrejectthecableaccordingtobrokenwires.listReducefactorofwireReduce0Rejectwireropewhenithasbrokenwire,itscoreexposed,oritsreduce7%;rejectthecablewhenradialwornorcorruptedover40%oftheoriginaldiameter.Lengthcalculationonreplacementwire4/2ropelengthrateis4H+13anydangerouswornoutto10%anydangerouswornoutto10%oforiginalhookIncrease15%thanDistortionoverDangeroussectionorhookPlasticScrewnut,hookCrack,Anyitemintheformappears,rejectthehook.rejectpartspertaintothehookanditspulleyblockatthesametime.List anywheelflangeWornoutto50%oforiginalwheelflangeBendingdeformationto20%oforiginalWornoutto15%oforiginalV＜50m/min，ovalityisTwodrivingDifference>1/600xworkingAnyitemappearsintheaboveform,thewheelshouldbeCommontroubleandUsualTheelectricpressureEnsurethevoltageoftoomotoroutputis90-ofrated ThethreephaseAdjustthepower varytoomuch eachamongthreephaseslowerthanLackofpower Phasesequence contactorandwiring Phase Checkthebrake’sandtheDCpartofisunderenergizedthemotorThenoiseisLackofinfuseallowable Drainthesuperfluousoiled,ortheoilandkeepmassoftheOil asmuchas2/5-1/2of packingisnotscrewthesealThecontactpointThevoltageistooMakesurethe ortooloworthe voltageisleftuncutwhen isoverstops workingtime lugorpoorcontact beforeinstallation pressbuttonThehandleis contactTheinnercontrolcableisbrokenChangeorswitchonthecableofhandle movingmechanismrunabnormallyphasefaultCheckthepowerTherelayCheckallrelaysoftheTheropeguiderisLiftandpull trainedandfamiliarThewireropeatthe Thewireropeinitselfistwisted.Removeonesideofwireropeandrelaxit,thenfixitagainThecomponentsrejectionofservicecranearewirerope,ropeguider,thefrictiondiscofmotorandre