7大型养路机械常见故障处理7.3大型养路机械保养5Common-troubleshooting-of-large-scale-road-maintenance-machinery-7

RAILWAYSECTORMaintenanceoflarge-scaleroadmaintenancemachineryCONTENTSTargetedmaintenanceoflarge-scaleroadmaintenancemachineryStoragemaintenanceofLarge-scaleroadmaintenancemachineryBasicprinciplestobefollowedforfaultjudgmentandmaintenanceTargetedmaintenanceoflarge-scaleroadmaintenancemachineryTargetedmaintenanceisinadditiontodailymaintenanceandregularmaintenance,amoretargetedmaintenanceistakenaccordingtothetechnicalconditionanduseofthemachine.Themaintenanceincludes:Targetedmaintenanceoflarge-scaleroadmaintenancemachineryMechanicalparkingmaintenanceSitetransfermaintenanceRun-inmaintenanceStoragemaintenance1.MechanicalparkingmaintenanceWhenthemachineisparkedandnotinuse,itshouldbeinspectedandmaintainedeveryweekwhenitexceedsoneweek.Themaintenancecontentisasfollows:(1)Completealltheworkofinspectionandmaintenance.(2)Starttheengineandrunfor15-20minutes.(3)Makeallworkingdevicesrunatno-loadunderworkingconditions,sothatacertainoilfilmisformedonthesurfaceofeachfrictioncomponent.Targetedmaintenanceoflarge-scaleroadmaintenancemachinery2.Constructionsitetransfermaintenance(1)MaintenancebeforesitetransferInordertoensuredrivingsafety,acomprehensiveinspectionandmaintenanceofthemachineryiscarriedoutbeforethetransferoftheconstructionsite.Themaintenancecontentsareasfollows:①Performamaintenanceonthepowertransmissionandrunningbrakingsystemaccordingtotheinspectionandmaintenancecontentofbefore.Targetedmaintenanceoflarge-scaleroadmaintenancemachinery②Checkthebrakeshoeandadjustthegapofthebrakeshoe.③Carryoutstand-alonebrakingandcontinuousbraking,andwindandbraketest.Targetedmaintenanceoflarge-scaleroadmaintenancemachineryDoublebrakeshoetypebasicbrakingdevice④Reinforcethelockingofeachworkingdeviceandthemeasuringtrolley.⑤Checkandmakeuptheoillevelofeachaxlegearbox,transfercase,andbridgedriveshaftbox.Targetedmaintenanceoflarge-scaleroadmaintenancemachineryQS-650kballastcleaninglocomotiveaxlegearbox(2)InspectionandmaintenanceaftersitetransferAfterarrivingatthenewsite,themachinemustbemaintainedagainbeforethemachinestartstowork.Themaintenancecontentsareasfollows:①Removethereinforcementmeasuresoftheworkingdevicesandthemeasuringtrolley.Targetedmaintenanceoflarge-scaleroadmaintenancemachinery②Checkthedetectionaccuracyofthemeasurementsystemandcorrectitifnecessary.③Adjustthedistancebetweentherollersoftherailclampandtherailaccordingtotherailtypeoftheoperatingline.Targetedmaintenanceoflarge-scaleroadmaintenancemachinery3.Running-inandmaintenanceForanewmachineoramachineafteramajorrepair,theservicelifeandperformanceofthemachinedependtoalargeextentonthequalityoftheinitialrun-in.Therefore,attentionmustbepaidtothemaintenanceofthemachineduringtherun-inperiod.Therunning-inperiodisgenerallysetat50h,theenginerunning-inperiodis200h,andthemaintenancecontentoftherunning-inperiodisasfollows:Targetedmaintenanceoflarge-scaleroadmaintenancemachinery(1)Aftertheengineisstarted,thespeedcannotbetoohighortoolow,andtheidlespeedshouldbemaintainedformorethan10minutes.Aftertheenginetemperaturerises,itisallowedtorunwithloadorstartdriving,andtheloadshallnotexceed75%to80%oftheratedload.Targetedmaintenanceoflarge-scaleroadmaintenancemachinery3.Running-inandmaintenance(2)Duringtherunning-inperiod,alwayspayattentiontocheckwhethertheconnectionsofvariouspartsareloose,andwhetherthelubricationandoperationofthetransmissionpartsarenormal.Anyabnormalityshouldbetightenedoradjustedatanytime.Targetedmaintenanceoflarge-scaleroadmaintenancemachineryUpperpartoftheengine1.Coolingfan;2.Emergencypump;3.Leftairfilterofdieselengine;4.Rightairfilterofdieselengine(3)Attheexpirationoftherunning-inperiod,theoilandoilfiltermustbereplaced,thehydraulicoilreturnfiltermustbecleaned,andthesuctionfilterandhigh-pressurefiltermustbereplaced.Targetedmaintenanceoflarge-scaleroadmaintenancemachineryStoragemaintenanceofLarge-scaleroadmaintenancemachineryStoragemaintenanceisthemaintenanceofmachineryduringthestorageperiod.Storagemaintenanceiscarriedoutonceamonth,andthemaintenancecontentisthesameasthatwhenthemachineisparked.StoragemaintenanceofLarge-scaleroadmaintenancemachineryInadditiontotheabove-mentionedvarioustypesofmaintenance,thecomponentsrelatedtodrivingsafety,suchaswheelsets,couplerbufferdevices,bogiesandbrakes,etc.,whichbelongtoCategoryA,shallalsobeinaccordancewith(81)TieCheZiNo.430Mandatoryplannedmaintenanceshallbecarriedoutinaccordancewiththerequiredrailwayvehiclemaintenancecycleandrepairrules.StoragemaintenanceofLarge-scaleroadmaintenancemachineryForexample,minorrepairsandaxleinspectionsarecarriedouteverysixmonths,partialrepairsarecarriedouteverytwoyears,andfactoryrepairsarecarriedouteveryeightyears.ForC-typeassemblies(suchasmeasuringtrolleys,airconditioners,etc.),temporarymaintenanceisoftenused.StoragemaintenanceofLarge-scaleroadmaintenancemachineryBasicprinciplestobefollowedforfaultjudgmentandmaintenanceRepairsandfaultjudgmentsshouldstartfromsimplethings,andanalyzeandjudgebasedontheprincipleof"fromsimpletocomplex,fromeasytodifficult".Whenjudgingandhandlingfailures,youshouldclarifyyourthinkingandachieve"thinkfirstanddoitlater"。Basicprinciplestobefollowedforfaultjudgmentandmaintenance1.Thinkabouthowtodoitandwheretostart,andthenactuallydoit.Thatis,analyzeandjudgefirst,andthentroubleshootandrepair.2.Fortheobservedphenomena,asfaraspossible,firstconsulttherelevantinformation,seeiftherearecorrespondingtechnicalrequirements,usecharacteristics,etc.,andthenproceedwiththemaintenanceacco