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    外文翻译--桥式起重机.doc

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    外文翻译--桥式起重机.doc

    徐州工程学院毕业设计(论文)1附录附录1英文原文BridgeCraneBridgecraneishavinganelevatedtrackrunninginabridge-typecrane,alsoknownasthecrane.BridgeCraneinthelayingofthebridgeonbothsidesalongtheelevatedtrackontheverticalrun,liftingtrolleyalongthebridgelayingonthetrackinthehorizontaloperation,ascopeofworkofarectangle,itcantakefulladvantageofhavingthespacebelowliftingmaterialsfromthegroundequipmenthindered.BridgeCranewidelyusedinindoorwarehouses,factories,wharvesandopenstorageyardandotherplaces.Abletocarryitems,stoodup,liftingstatus,andadjustoperations,mainlyfortheworkshop,sectionsandsteelproductionlinesyard,etc.Liftingcapacityusuallyinthe10to100t.Bridgecraneitselfforhorizontalmovement,thewinchframefortheverticalmovementofthewinchsuspendedfromthehookforverticalmovement,thedirectionofmovementofthreeofthecranecanwork.Inordertopreventbridgecranedrivernotclearinthespecifichookcampaign,onthegroundareequippedwithliftingthegeneralcommandorfolder,puthook.Ifhangingoverheadcranehoistedelectromagneticliftingplate,oftenoperatedbythedriversthemselves.Bridgecranescanbedividedintogeneraloverheadcrane,simplegirderbridgecraneforbridgecraneandmetallurgicalthree.Ordinarygeneraloverheadcranefromliftingtrolley,havingruninstitutions,havingcomposedofametalstructure.Liftingupfromthecarandfrominstitutions,agenciesandthecarrunningsmallframeconsistsofthreeparts.Liftingbodies,includingthemotor,brakes,reducer,andthepulleydrumgroup.Motorthroughthereducer,drivenrotatingdrumsothatthewireropearound42.50or42.50downtoliftingweights.Smallframeisfromthebracketsandinstallorrunagenciesandinstitutions,suchascarpartsrack,usuallyweldedstructure.Cranerunningthedrivingmodecanbedividedintotwocategories:onecategoryistheconcentrateddrive,whichusesamotor-driveninitiativesonbothsidesofthedriveshaftdrivenwheel;weredriventoanother,thatis,onbothsidesoftheinitiativethewheelswithamotordrive.Small,mediumandlargeroverheadcranewithbrake,andmotorreducercombinationintooneofthe"tripleplay"drive,theweightoftheordinaryfromtheoverheadcraneforeasyinstallationandadjustment,oftendrivetheuseofuniversal-axis.Cranenormallyusedonlyfouractiveanddrivenwheels,ifagreatweight,increase徐州工程学院毕业设计(论文)2commonapproachtoreducewheelroundpressure.Whenmorethanfourwheels,mustadoptabalancedhingedframedevicesothatthecraneloadevenlydistributedinthewheels.Bridgemetalstructurefromthemainsorghumandsorghum-composedofthemainbeamisdividedintosingle-anddouble-girderbridgehavingtwocategories.Single-beambridgefromthemainbeamandasingleonbothsidesofthespanattheendofsorghum,dual-beambridgebythetwomainsorghumandsorghum-component.LiangLiangGangandtheendofthelink-beamendswithwheels,forsupportinganelevatedbridgeintherunning.Amainbeamweldingontrackfortheliftingtrolleyrunning.Havingthestructureofthemainbeamtypeismoreatypicalboxstructure,thefourtrussstructureandfastingtrussstructure.Boxstructurecanbedividedintotwo-trackboxgirder,partialdouble-trackbox-beam,single-bias-railboxandseveralmainsorghum.Dual-trackboxgirderistheextensiveuseofabasicform,themainbeamfromtheupperandlowerflangeonbothsidesoftheplateandverticalwebcomposition,layoutrailcarinthecenteroftheflangeplatesonline,anditssimplestructure,manufacturingconvenient,suitableformassproduction,butlargerforces.Partialtracksbox-girderandpartialdouble-trackbox-sectionofthemainbeamarefromtheupperandlowerrangesflangeplatesandthickwebofthemaincomponents,railcarinthemainweblayoutabove,theshortXiangbennaomitthestiffeningplate,whichtracksbox-sidemainbeamfromawideflangeboxinsteadofthemainsorghumtwomainsorghum,respectsmaller,butmorecomplexmanufacturing.4truss-typestructurefromfourplanetrussstructureintoaclosedspace,inthegenerallevelofthesurfaceTrussshopsfollowplate,lightweight,rigidity,butcomparedwithotherstructures,anditsdimensions,creatingmorecomplex,fatiguelowerintensity,hasbeenlessproductive.Partialfastingtrussstructuresimilartothemaintracksbox-girderfromthefourcomponentsofaclosedsteelstructure,inadditiontothemainwebfortheSolidshapedbeam,theotherthreeplateinaccordancewiththedesignrequirementscutintomanywindows,formingano-rampsFastingTruss,inthelowerlevelofthesurfaceoccupiedbytakingtrussplate,cranesandtheoperationofelectricalequipmentinstalledinthebridgehouse,lighterforces,theoverallstiffness,andthatinChinaisamorewidelyusedtype.Generaloverheadcraneusedmainlydrivenpower,thegeneralisinthedriverindoormanipulation,butalsoremotecontrol.Fromtheweightofupto500tons,upto60mspan.Simplebeambridgecraneknownassorghumcranes,andthestructureandcompositionofordinarybridgecranesimilartoaweight,spanandspeedaresmaller.BridgeisthemainsorghumorothersteelI-beamandplatesteelgirdersectioncomposedofsimple,hand-pullorelectrichoistaccompaniedbygourdsimpleasliftingtrolleycar,thecarusuallyintheword徐州工程学院毕业设计(论文)3sorghumrunonthenextflange.Bridgecanbeelevatedalongtheorbit,butalsoalongtheelevatedsuspensioninthefollowingorbit,suchasacranehoistedsorghumcrane.Metallurgicaldedicatedbridgecraneinthesteelproductionprocesscanbeinvolvedinaspecificprocessoperation,anditsbasicstructureandgeneraloverheadcranesimilar,butinsmallvehiclesareequippedwithliftingtheworkofspecialagenciesordevices.Thisfeatureistheworkofacraneusedfrequently,poor,working-levelhigher.Dual-beambridgecranefactoriesonthetrackalongtheverticaldirectionofmovement,thelateralmovementandtrolleymovementscampaigntohookwork.Appliedtomachiningandassemblyshop,ametalstructureworkshop,mechanicalworkshops,metallurgyandcastingworkshopandwarehousetypeliftingwork.Withscoresfromtheweightoftheform,molecularweightmainlyGouqi,thedenominatorasviceGouqiweight.Therearefivemaintypes.CastingCrane:fortheliftingofhotmetalintoMixer,furnacesandmoltensteelintoliftingequipmentorcontinuousingotsteelingotmouldused.Shengbarrelsliftingthecar,aflip-sheng,deputytrolleybarrels,andotherauxiliarywork.Tongscrane:Usingtongshightemperaturesteelingotwillbeverticallybeingliftedontoadeepsoakingpits,orputitoutthecarshippedspindles.StripperCrane:aningotfromthemandatoryextrusioningotmold.TherearespecialsmallcarStripperdevices,spindlesStripperunderwayandtheshapeofthemodel:SomeStrippercrane-isattributabletosuppressbillets,ingotsfiledwiththeclampmodule;Someoftheclamppuncturedingotmould,withIngotfiledsmallpairofpliers.FeedingCrane:Chargewillbeaddedtotheopenhearthfurnace.Trolleybottomofthecolumnwiththepick-andincitingmaterialtomeanditintothefurnace.Themaincolumntobypasstheverticalaxisrotation,pick-androtarycanswingfromtoptobottom.Deputycarrepairfurnaceforsuchauxiliaryoperations.ForgingCrane:tomeetwithhydraulicforginglargeworkpieces.Trolleydisplayedonthemainhookupspecialfeedertosupportandfliptheworkpiece;Vicecarusedtolifttheworkpiece.Dual-beambridgecrane,thebiggestweightfrom100tons,thehook-and-grab,electromagnetic,metallurgicalcranes,quenchingcrane,manualdoublegirderbridgecrane,electrichoistdoublegirderoverheadcranewiththecraneunitJB/T14405"genericbridgecrane"standard,thequalityofproductstoJB/T53442"universaloverheadcraneproductqualitygrade"first-classrequirements.Itsstructuralfeaturesofstartingupandrunningwiththecarrunningonthebridge,ametalstructureforthedouble-girderboxform.Fromthecharacteristicsofthedeviceinaccordancewiththeclassificationforthehook,grab,electromagneticandmultipurposebridgecrane,mainlyforthemines,factories,wharvesandwarehouses,andother徐州工程学院毕业设计(论文)4materialhandlingoperationsfrequentstops,asacranequenchingequipment,ahigh-speedheattreatmentprocessofdecline.Metallurgicalcastingmoltensteelcranetotransportpacketisindispensablethansmeltingindustrialequipment.Theuseofmodernmeansofscienceandtechnology,willenableanycranestructurewithajump-speedperformance.Canbeusedwithhigh-levelrotatinghookforstackingoperations.Single-girderbridgecrane,thelargestweightof10tonsfrom,hook-and-grab,electromagnetic,flyingsingle-girderbridgecrane,manualsingle-girderbridgecranewiththecraneunitJB/T1306"electricsingle-girderbridgeCrane"andJB/T2603"electricsingle-girderoverheadcranehoistedthe"standardrequirements.ItsstructureischaracterizedmanualorelectrichoistmonorailcaralongthemainbeamundertheflangeI-beamoperation,materialhandlingoperations,normallyusedforworkshops,warehousesandothermaterialhandlingoperations,whichmanualdoesnotallowforsingle-girdercraneNoelectricityorpoweroccasions.Grabmotorwiththemonorailorbulkmaterialscanalsobeusedtograboperations,theunitcranecompactstructure,operationalflexibility,canbeusedtoground,canalsobeusedtooperatethecab.Specialcircumstancescanalsobeusedforremoteoperation.Industrialproductionorstorageisindispensableequipment.Cranenormalworkinghourstoallowaliftingofthegreatestqualityasratedstartingweight.Ratedcranehookfromthehookandtheweightdoesnotincludethefixedpulleygroupthemselves.Grabsuckerandelectromagneticdevices,suchasthequalityofadmissionincludedintheratingsfromtheweight.InaccordancewiththestandardprovisionsofthebridgecranefromtheweightofaseriesofprioritynumbersystemisR10,from3.2t,beginningwiththeincrementof1.25Gongpi4,5,6.3,8,10,12.5,16,20,25,32,40,50t.Butdomesticproductsonlyunderthebridgecraneyearsofproductionpractices,fromtheaboveseriesofelectedpartoftheactualcompositionofaseriesofweight.IsthemostcommonlyusedSeries5t,10t,16t,20t,32tand50t.Normally,whenaweightofmorethan10t,orfromtheestablishmentoftwobodies,namelytheliftingofliftingbodiesandinstitutions,bothfromtheweightofaratioofabout1:4.Mainbodyfromtheweightor,forliftingheavycargoliftingoftheweightfromthesmall,butfaster,lighterfortheliftingofthegoodsorforsupportingeffortstoenhanceworkefficiency.Generalmaybethebiggestcraneliftingweightstodeterminethestartingweight,takingintoaccounttheconditionsofworkreproducedorprocessrequirements.Cranedoesnotallowtheuseofoverloading,intheliftingofthefrequentchangesoftheoccasion,craneshouldconsidercertainmargin.Insomecases,theoccasionalobjecttotheliftingofoverweightavailablewhentwocranescoordinatedoperations.Intheprocessfixed,theliftingoftheweightwillremainbasicallyunchanged,theuseofcranesloadedwiththebasiccircumstances,canbe

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