液压升降平台液压升降车毕业课程设计外文文献翻译中英文翻译.docx
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液压升降平台液压升降车毕业课程设计外文文献翻译中英文翻译.docx
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液压升降平台液压升降车毕业课程设计外文文献翻译中英文翻译
1英文文献翻译
1.1DesignOfALift
Hydraulicliftingplatformisaversatilecraneliftingequipment,widelyusedinfactories,docks,construction,transportation,sports,equipmentmaintenanceandotherhigh-altitudeoperationsandmaintenance.Existinghydraulicliftingplatformtherearemany,canberoughlydividedinto:
four-wheelmobileliftingplatform,push-typeliftplatform,carloadliftingplatform,fixedplatformlift,scissorliftplatform,four-postliftThetwocolumnliftandsoon.
Inrecentyears,withtherapidincreaseintheuseofcars,China'sboomingautoindustry,especiallythecarindustry.Thismakestheautorepairindustryhasgrown,demandforautomotivemaintenanceequipmentrapidexpansion,butalsothemaintenancerequirementsintheautomotivetoolsandequipmentrequirementsontheincreasinglyhighliftvehiclerepairworkshopisessentialandmostimportantmaintenancemachineryandequipment.Theroleofautoliftcarisinneedofrepair,asmoothupgradetotheappropriateheight,sothatmaintenanceworkersatthebottomofthecarchassismaintenanceandinspection.Generallydividedintohighcolumncarliftandscissors.Eitherway,arerequiredtomeetthesynchronousliftingthecar,corneringcannothappen,andaskedfortheemptychassisbottomforeasymaintenanceworkersformaintenanceworkwhichrequiresliftingplatformsynchronouslifting,runningsmoothly.Therefore,maintenanceofthecarliftingplatformequipmentisgenerallydrivenbyhydraulicsystem.
Withtheexpandingservicesector,aswellasthefurtherdevelopmentofautomation,themaintenancestafftoreducelaborintensity,makingtheeasymaintenance,andcanbetterimprovetheefficiencyofvehiclemaintenance,andcarmaintenanceservicequality,sothehydraulicliftPlatformautomationrequirementsarealsorising.Vehiclemaintenanceiscurrentlyrequiredtomeetthesynchronizationcontrol,liftingtheplatformliftsystemdependsmainlyonthehydraulicsystemandelectricalcontrolanddrivesystems,buttheliftplatformiscurrentlyownedbythewidespreadleakage,internalleakage,shortlife,theoperationnotflexible,synchronousoperationandlowdefects.Toavoidthesedisadvantages,requiremoreprecisesynchronizationtoensurethatthehydraulicliftingplatformliftprecision,andnowmostofthehydraulicliftingplatformsimultaneouslyphasingoutalltraditionalhydraulicvalves,theuseofmoreprecisecontrolofthenewelectro-hydraulicservovalve,electro-hydraulicproportionaldigitalelectro-hydraulicvalveandvalvetocontrolthehydraulicsystem,toachievesynchronizationandhighprecision.Asaformofelectro-hydraulicproportionalvalvetypeofdiverse,easytousecompositionofavarietyofelectricalandcomputer-controlledhydraulicsystem,controlofhighprecision,installationflexibilityandstronganti-pollutionandmanyotheradvantages.
CurrentlyusedintheautomotiverepairHydraulicsynchronousliftplatformvehiclemaintenanceplaysanimportantroleinsynchronousliftingplatformonavarietyofhydraulicvalves,hydrauliccylinders,hydraulicpumpstationinnovationandimprovement,makingahydraulicliftingplatformsynchronizationsmoothrunning,lownoise,fastresponse,highprecisionsynchronizationoftherepairandmaintenanceinthecarplayedacrucialrole.
Withthehydraulicliftplatformintheautomotiverepairindustry,applicationandfurtherimprovementandinnovationinthemaintenanceofhydraulicliftingplatformhasthecarcanachievemorecomplexfunctions,thestructureoftheplatform,driveon,andavarietyofcontrolsystems,hasbeengreatlyimproved.Thecurrentliftplatformliftsystemismainlydrivenbythehydraulicsystem,ofcourse,donotrelyonhydraulicpressure,aswellasdual-usedieselelectricrotaryliftplatform,nowappearedbatterydrivenliftplatform,continuouslyvariabletransmissioncanbeachievedwithsafer,moreconvenientandlownoiseadvantages.Liftingplatformiscurrentlywidespreadleakage,internalleakage,shortlife,theoperationisnotflexible,synchronousoperationandlowdefects.Toavoidthesedisadvantages,requiremoreprecisesynchronizationtoensurethatthehydraulicliftingplatformliftprecision,andnowmostofthehydraulicliftingplatformsimultaneouslyphasingoutalltraditionalhydraulicvalves,theuseofmoreprecisecontrolofthenewelectro-hydraulicservovalve,electro-hydraulicproportionaldigitalelectro-hydraulicvalveandvalvetocontrolthehydraulicsystem,toachievesynchronizationandhighprecision.Asaformofelectro-hydraulicproportionalvalvetypeofdiverse,easytousecompositionofavarietyofelectricalandcomputer-controlledhydraulicsystem,controlofhighprecision,installationflexibilityandstronganti-pollutionandmanyotheradvantages,applicationsbecomeincreasinglybroadened.
InChina,althoughsynchronoushydraulicliftingplatformforsuchdevelopment,productionstartedlate,butwithChina'srapideconomicdevelopment,inordertoadapttoChinainvariousfieldsusedbythesynchronoushydraulicliftingplatformdevelopmentneedsandtakethelarge-scale,standardized,intensive,productsupportservices,achievingmechanical,electrical,fluidintegrationplatformintheapplicationofsynchronousmovements.Theuseofsynchronoushydraulicliftingplatformsurface,theservicehasbeenexpanding,isnowinrapiddevelopmentstage,andnowhydraulicliftingplatformreliability,security,easyoperationandsimpledirectness,andotheraspectsgreatlyimproved,andwiththethepopularityanddevelopmentofcomputerandmechanical,electrical,fluidintegrationprogressofthestudy,majordomesticandforeigncompanieshavetocompetewiththecomputer(electronic)controlsystemtoimproveoverallperformanceandreducetheuseofhydrauliccomponents,machine,reducingthewholesizeandweight,improvethesensitivityofcontrolandsynchronizationaccuracy.Inparticular,themanufacturersactivelyintroducinganddigestingforeignadvancedtechnology,developmentofnewvarieties,improvingproducttechnologyandqualitylevel,hasbeenpartofthehydraulicliftingplatformsynchronizedatorclosetotheinternationallevelofsimilarproducts.
CurrentlyusedintheautomotiverepairHydraulicsynchronousliftplatformvehiclemaintenanceplaysanimportantroleinsynchronousliftingplatformon
avarietyofhydraulicvalves,hydrauliccylinders,hydraulicpumpstationinnovationandimprovement,makingahydraulicliftingplatformsynchronizationSmoothrunning,lownoise,fastresponse,highprecisionsynchronization,fortherepairandmaintenanceofthecarplaysanirreplaceableroleinawiderangeprospects.Therefore,theliftingplatformforfurtherresearchandimprovement,optimizesystemperformanceandstructuretofurtherimprovetomakeupfortheshortcomingsofexistingtechnologyhasimportantsignificance.
Thesubjectofthedesignofthehydraulicliftingplatformmainuseoftheoretical
researchanddesign,throughtheunderstandingandstudyofthehydraulicsystem,
aswellasexisting
controltechnologiesandmorein-depthresearchanddevelopment,
inthehydraulic
systemcomponentsandfurtherunderstandingandlearning,
Combinedwiththemodernizationofhydrauliccomponentsandautomationandcontrolcomponentswithinthehydrauliccontrolthroughtraditionalhigh-techcomponentsandcontrolelementsofexistingcomparativeandcomprehensiveapplicationofthetraditionalhydraulicsystem,basedontheresearchanddesignmoreinnovativesetofmachines,Electricity,liquidinoneofthehydrauliccontrolsystem,makesthesystemmorestableandfastertoachievetheadvantages.
Hydraulicliftplatformsystem,requirestheabilitytoachievefour-wheeledvehiclesinacontrolledsynchronousliftingheightliftingrange,toachievesafeandreliablecontrolofthetwofront,tworear,tworevolvers,tworoundsofsynchronousliftingtherightandtoensuresynchronousmovementsaccuracy.Thehydraulicliftsystemalsomusthaveafastresponsespeed,hydraulicpowerunits,smallsize,compactstructure,largepowerweightratio,easeofmanipulationandcontrol,labor-savingconvenienceandeasytoimplementautomated,withoverloadprotectionforhighreliabilityrequirementssystem,excellenttechnicalperformance,whileensuringsynchronoushydraulicliftingplatformcanbeanywhereintheverticaldirectiononalongertime(60minorlonger)withinareliablelocking,thesystemcanworkcontinuouslyandreliably,thesystemenergyefficient,easytomaintainlowcost.Hydraulicliftplatformtomeetsystemdesignrequirements,synchronousmovementssmooth,andthedesigntoachievethefunctionalrequirements,developthesystemclosed-loopcontrolofhydraulicsystems,hydraulicsystemsusedtosatisfythesynchronizationrequirementsofprecisionandcontroltoachievethefour-wheeledvehiclesinacontrolledsynchronousliftingheightliftingrange,toachievesafeandreliablecontrolofthetwofront,tworear,tworevolvers,tworoundsofsynchronousliftingtherightandtoensuretheaccuracyofsynchronousmovements.
Tomeetthesynchronousliftinghydraulicsystem,thesystemneedstohavesynchronizationcontroldevicetoachievesynchronization.Synchronizationofhydraulicsystemiscurrentlyrunningmultiplecontrolmethods,mainlymechanicalsynchronizationmethod,pumpormotorparallelmethod,doublerodcylinderinseries,controlvalve,synchronizer,synchronizationcontrolvalvecircuit,servoandsoon.
Accordingtothedesignofmachineryandequipmentrequirementsfortherealizationofabettertwo-carfront-wheel,tworear,tworevolvers,twosynchronousliftingtherightwheel
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