电梯的电气系统维护毕业设计.docx
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电梯的电气系统维护毕业设计.docx
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电梯的电气系统维护毕业设计
电梯的电气系统维护毕业设计
1.毕业实践任务书----------------------------------------------------------1
2.外文翻译---------------------------------------------------------------2
3.毕业实践调研报告--------------------------------------------------------10
4.毕业设计说明书----------------------------------------------------------13
5.附录-------------------------------------------------------------------36
6.毕业设计总结-----------------------------------------------------------51
7.参考文献----------------------------------------------------------------35
Thehistoryandfutureoftheelevator
Lifttheinventionprocess
Elevatoraccesstopeople'sliveshavebeen150years.
1854,atCrystalPalaceinNewYorkWorld'sFair,American•ElishaGravesOtis•Thefirsttoshowtheworldhisinvention.Hestoodfullyloadedelevatorplatform,thecommandassistantpulleduptotheplatformcanbefoundontheheightoftheaudience,andthensendasignalthathelperliftwiththeaxandcutoffthepullingcable.Surprisingly,aliftanddidnotcrash,butfirmlyfixedintheair-Mr.Otisinventedtheelevatorsafetydeviceplayedarole."Allsafe,gentlemen."Standingonaliftplatform,Mr.Otiswavedaroundpeoplewatching.Noonewouldthink,thisisasafeliftofhumanhistory.
Liftingtoolfortransportofgoodsforhumanuse,staffextremelylonghistory.Asearlyas2600BC,theEgyptiansbuiltthepyramidsontheuseofthemostoriginalliftingsystem,thebasicprincipleofthissystemhasremainedunchanged:
thatis,acounterweightisdeclining,theloadplatformrise.Fundamentaltotheearlyliftingofhuman-poweredtools.1203,theFrenchcoastinamonasteryandinstalledacranedrivenbydonkey,thisendedthehistorywiththehumantransportingheavyloads.Wattinventedthesteamengine,Britishscientists,thecranebegantousesteam-powereddevices.FollowedbyWilliamThomsondeveloped•Hydraulic-drivenlift,hydraulicmediumiswater.Onthebasisoftheselifts,generationaftergenerationofinnovativeengineerslifttechnologyisconstantlyimproving.However,akeysecurityissuehasnotbeenresolved,itispulleduptheropeoncetheliftwasbroken,theloadplatformtocrashwilloccur.
Mr.Otisinventedthecompletelyrewrittenthehistoryofhumanuseliftingtools.Sincethen,taketheliftisnolongera"bravegame",andaliftintheworldarewidelyused.December1889,theUnitedStatestocreateaveritableOtiselevator,whichusesDCmotordriven,wormgeardrivenbyaropewoundaroundthedrum,andliftthecarflying.In1892,theUnitedStatesOtisbegantousebuttoncontroldevicesinsidethecartoreplacethetraditionalwayofpullingtheropemanipulation,modernizethewayopenforthemanipulationofprecedent.
Lifegoeson,scienceandtechnologyindevelopment,theelevatorisalsoprogress.150years,liftmaterialfromtheblackandwhitetocolor,style,inclinedfromtheverticaltothemanipulationofcontrolisanewstepbystep-thehandleswitchcontrol,buttoncontrol,signalcontrol,settheselectioncontrol,man-machinedialogue,etc.,alsoappearedinmorethanoneelevatorinparallelcontrol,intelligentgroupcontrol;double-deckelevatorsshaftshowtosavespaceandenhancethetransportcapacityoftheadvantages;speedtheemergenceofautomaticescalatorsidewalkpedestriansignificantsavingsoftime;differentshapes-fan,triangular,halfdiamond,halfround,thewholeroundofsightseeingelevatormakeslivinginoneofthepassenger'sattentionisnolongerclosed.Today,theUnitedStatesonbehalfofOtisistheworld'sleadingelevatorcompanyinthedevelopmentofwell-knowngrace,arecontinuingthedevelopmentofnewelevators,andcontinuetoimproverepairandmaintenanceservicesystem.FMgated,intelligentremotemonitoring,hostenergy-saving,lownoisecontrolcabinetanddurable,environmentallyfriendlycompositestrip-aleisurelyJinathehumanmachinery,electronics,opticsandotherareasofthelatestscientificresearchanewracetocomeouttheelevator,thebuildingcoldTherefore,thegloryofhumanityscattered,people'slivesarebetter.
ElevatorOrigin
In1887,theUnitedStatesOtistocreatetheworld'sfirstelevator,whichisaDCmotortodrivetheelevator.Itwasinstalledin1889building.Theancientelevatorcanonlygo10metersperminuteorso.Originaldesignoftheelevatorpurelyforeffort.
In1900,theACmotordriveoftheelevatorbegantocomeout.1902,SchindlerofSwitzerlandsuccessfullydevelopedtheworld'sfirstpush-buttonautomaticelevators,withautomaticcontrol,toimprovethetransmissioncapacityoftheelevatorandsecurity.
Withtheemergenceofhigh-risebuilding,elevatordesign,technologyisimproving,theelevatorspeciesalsograduallyincreased.In1900,theUnitedStatesotiscompanyhasbuilttheworld'sfirstescalator.1950,andmadetheinstalledoutsidethebuildingatthetopsightseeingelevator,sopassengersintheelevatorrunningaroundinclearviewoverlooking
AnelevatorfirstappearedinChinainShanghai,isbytheUnitedStatesOtisinstalledin1901.BytheUnitedStatesin1932OtisinstalledtheAstorHotelinTianjinarestillsafeoperationoftheelevator.In1951,theCPCCentralCommitteeproposedtoinstalloneinTiananmenSquareinChinatomanufacturebytheelevatormotorfactoryinTianjinRongfromthebirthdaythenthistask,fourmonthslaterfailintheirmission,successfullycompletedthetask.AftertheThirdPlenarySession,bathedinthespringbreezeofreformandopeningup,China'selevatorindustryenteredaperiodofrapiddevelopment.Now,anycityinChina,iswidelyusedintheelevatorwith.Elevatortothepeople'slivesmadeeasier,butalsofortheaccelerateddevelopmentofChina'smodernizationhasprovidedapowerfulguarantee.
Thecompositionoftheelevator
Tractionsystem
Theprimaryfunctionofthetractionsystemandtransmissionpoweroutput,sothattheliftoperation.
Tractionsystemconsistsoftractors,tractionrope,steeringwheel,anti-roperoundcomposition.
Guidancesystemguidancesystemmainfunctionistolimittheactivitiesofcarandheavydegreesoffreedom,sothecaralongtherailsandcanonlybeliftingheavyexercise.
Orientedsystemiscomposedofrails,guideshoesandguideframe.
Carisacartotransportpassengersandcargoelevatorcomponents,theworkispartoftheelevator.
Carcarbythecarframeandbodycomposition.
Doorsystemdoorsystem'smainfunctionistosealtheentranceandcarlandingentrance.
Doorsystemfromthecardoor,floordoor,openthedoor,lockdevicecomposition.
Weightbalancesystemmainfunctionistobalancethecarrelativetotheweightoftheworkintheelevatorcarandmakethedifferenceinweightbetweenthecounterweighttokeepwithinthelimits,toensurethatthetractionelevatordrivenormal.
Systemismainlycomposedoftheweightandtheweightcompensationdevicecomposition.
Electricdrivesystem,electricdrivesystemfunctionistoprovidepower,theimplementationoftheelevatorspeedcontrol.
Electricdrivesystemconsistsofthetractionmotor,powersupplysystem,thespeedfeedbackdevice,motorspeedcontroldeviceandothercomponents.
Electricalcontrolsystemelectricalcontrolsystem'smainfunctionistoimplementtheoperationoftheelevatormanipulationandcontrol.
Electricalcontrolsystemconsistsofcontrolunit,positiondisplaydevice,thecontrolscreen(cabinet),levelingdevices,devicescomposedoflayerselection.
Securitysystemtoensurethesafeuseofelevators,topreventanythreattopersonalsafetyaccidents.
Bytheelevatorgovernor,safetygear,bumpers,safetytouchpanels,floordoorlocks,windowliftsafety,elevatoroverloadlimitingdevice,limitswitchdevicecomposition.
Theworkingprincipleoftractionelevatorropeattachedtobothendsofthecarandheavy,wrappedinthewheelandguidewheeltraction,thetractionmotorthroughspeedreducerdrivesheaveaftertherotation,bytheropeandthetractionwheeltractionfrictiontraction,toachievetheliftingofheavycarandsports,totransportationpurposes.Fixedinthecarontheguideshoescanbeinstalledinthebuildingsalongthewallsontheshaftbackandforthmovementatafixedrailtopreventthecarrunninginthedeflectionoroscillation.NCblockbrakeBrakeworkinthemotor,sothattheliftoperation,incaseoflossofpowerbrakestopsthecardown,andstandonthespecifiedlayertomaintainitsrestingstate,forpersonsandgoodsaccess.Carwascarryingpassengersorotherloadsoftheboxcomponents,tobalancethecarontheheavyload,reducingmotorpower.Tractionropecompensatingdevicetocompensateforthemovementofthetensionandweightchange,sothatthetractionmotorloadstability,stopthecartobeaccurate.Electricalsystemtoachievethemovementoftheelevatorcontrol,whilecompleteselectionlayer,flatfloor,speedandlightingwork.Callsystematanytimedirectthemovementofthecarshowsthedirectionandthelocationwherethefloor.Safetydevicestoensurethesafeoperationoftheelevator.
Thehistoryandfutureoftheelevator
Mainlybythemodernelevatortractionmachine(winch),guidesthecounterweight,safetydevices(suchasgovernor,safetygearandbuffers,etc.),signalcontrolsystems,carandlandingdoorsandothercomponents.Thesesectionswereinstalledinthebuildingwellandmachineroom.Commonlyusedfrictiondriverope,wireropearoundthetractionsheave,bothendsareconnectedtothecarandcounterweight,motor-driventractionwheeltothecarlift.Liftrequiredsafetyandreliability,transmissionefficiency,levelingaccuracyandridecomfort.Thebasicparametersofthemai
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