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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BRIDGECRANEBRIDGECRANEISHAVINGANELEVATEDTRACKRUNNINGINABRIDGETYPECRANE,ALSOKNOWNASTHECRANEBRIDGECRANEINTHELAYINGOFTHEBRIDGEONBOTHSIDESALONGTHEELEVATEDTRACKONTHEVERTICALRUN,LIFTINGTROLLEYALONGTHEBRIDGELAYINGONTHETRACKINTHEHORIZONTALOPERATION,ASCOPEOFWORKOFARECTANGLE,ITCANTAKEFULLADVANTAGEOFHAVINGTHESPACEBELOWLIFTINGMATERIALSFROMTHEGROUNDEQUIPMENTHINDEREDBRIDGECRANEWIDELYUSEDININDOORWAREHOUSES,FACTORIES,WHARVESANDOPENSTORAGEYARDANDOTHERPLACESABLETOCARRYITEMS,STOODUP,LIFTINGSTATUS,ANDADJUSTOPERATIONS,MAINLYFORTHEWORKSHOP,SECTIONSANDSTEELPRODUCTIONLINESYARD,ETCLIFTINGCAPACITYUSUALLYINTHE10TO100TBRIDGECRANEITSELFFORHORIZONTALMOVEMENT,THEWINCHFRAMEFORTHEVERTICALMOVEMENTOFTHEWINCHSUSPENDEDFROMTHEHOOKFORVERTICALMOVEMENT,THEDIRECTIONOFMOVEMENTOFTHREEOFTHECRANECANWORKINORDERTOPREVENTBRIDGECRANEDRIVERNOTCLEARINTHESPECIFICHOOKCAMPAIGN,ONTHEGROUNDAREEQUIPPEDWITHLIFTINGTHEGENERALCOMMANDORFOLDER,PUTHOOKIFHANGINGOVERHEADCRANEHOISTEDELECTROMAGNETICLIFTINGPLATE,OFTENOPERATEDBYTHEDRIVERSTHEMSELVESBRIDGECRANESCANBEDIVIDEDINTOGENERALOVERHEADCRANE,SIMPLEGIRDERBRIDGECRANEFORBRIDGECRANEANDMETALLURGICALTHREEORDINARYGENERALOVERHEADCRANEFROMLIFTINGTROLLEY,HAVINGRUNINSTITUTIONS,HAVINGCOMPOSEDOFAMETALSTRUCTURELIFTINGUPFROMTHECARANDFROMINSTITUTIONS,AGENCIESANDTHECARRUNNINGSMALLFRAMECONSISTSOFTHREEPARTSLIFTINGBODIES,INCLUDINGTHEMOTOR,BRAKES,REDUCER,ANDTHEPULLEYDRUMGROUPMOTORTHROUGHTHEREDUCER,DRIVENROTATINGDRUMSOTHATTHEWIREROPEAROUND4250OR4250DOWNTOLIFTINGWEIGHTSSMALLFRAMEISFROMTHEBRACKETSANDINSTALLORRUNAGENCIESANDINSTITUTIONS,SUCHASCARPARTSRACK,USUALLYWELDEDSTRUCTURECRANERUNNINGTHEDRIVINGMODECANBEDIVIDEDINTOTWOCATEGORIESONECATEGORYISTHECONCENTRATEDDRIVE,WHICHUSESAMOTORDRIVENINITIATIVESONBOTHSIDESOFTHEDRIVESHAFTDRIVENWHEEL;WEREDRIVENTOANOTHER,THATIS,ONBOTHSIDESOFTHEINITIATIVETHEWHEELSWITHAMOTORDRIVESMALL,MEDIUMANDLARGEROVERHEADCRANEWITHBRAKE,ANDMOTORREDUCERCOMBINATIONINTOONEOFTHETRIPLEPLAYDRIVE,THEWEIGHTOFTHEORDINARYFROMTHEOVERHEADCRANEFOREASYINSTALLATIONANDADJUSTMENT,OFTENDRIVETHEUSEOFUNIVERSALAXISCRANENORMALLYUSEDONLYFOURACTIVEANDDRIVENWHEELS,IFAGREATWEIGHT,INCREASE徐州工程学院毕业设计论文2COMMONAPPROACHTOREDUCEWHEELROUNDPRESSUREWHENMORETHANFOURWHEELS,MUSTADOPTABALANCEDHINGEDFRAMEDEVICESOTHATTHECRANELOADEVENLYDISTRIBUTEDINTHEWHEELSBRIDGEMETALSTRUCTUREFROMTHEMAINSORGHUMANDSORGHUMCOMPOSEDOFTHEMAINBEAMISDIVIDEDINTOSINGLEANDDOUBLEGIRDERBRIDGEHAVINGTWOCATEGORIESSINGLEBEAMBRIDGEFROMTHEMAINBEAMANDASINGLEONBOTHSIDESOFTHESPANATTHEENDOFSORGHUM,DUALBEAMBRIDGEBYTHETWOMAINSORGHUMANDSORGHUMCOMPONENTLIANGLIANGGANGANDTHEENDOFTHELINKBEAMENDSWITHWHEELS,FORSUPPORTINGANELEVATEDBRIDGEINTHERUNNINGAMAINBEAMWELDINGONTRACKFORTHELIFTINGTROLLEYRUNNINGHAVINGTHESTRUCTUREOFTHEMAINBEAMTYPEISMOREATYPICALBOXSTRUCTURE,THEFOURTRUSSSTRUCTUREANDFASTINGTRUSSSTRUCTUREBOXSTRUCTURECANBEDIVIDEDINTOTWOTRACKBOXGIRDER,PARTIALDOUBLETRACKBOXBEAM,SINGLEBIASRAILBOXANDSEVERALMAINSORGHUMDUALTRACKBOXGIRDERISTHEEXTENSIVEUSEOFABASICFORM,THEMAINBEAMFROMTHEUPPERANDLOWERFLANGEONBOTHSIDESOFTHEPLATEANDVERTICALWEBCOMPOSITION,LAYOUTRAILCARINTHECENTEROFTHEFLANGEPLATESONLINE,ANDITSSIMPLESTRUCTURE,MANUFACTURINGCONVENIENT,SUITABLEFORMASSPRODUCTION,BUTLARGERFORCESPARTIALTRACKSBOXGIRDERANDPARTIALDOUBLETRACKBOXSECTIONOFTHEMAINBEAMAREFROMTHEUPPERANDLOWERRANGESFLANGEPLATESANDTHICKWEBOFTHEMAINCOMPONENTS,RAILCARINTHEMAINWEBLAYOUTABOVE,THESHORTXIANGBENNAOMITTHESTIFFENINGPLATE,WHICHTRACKSBOXSIDEMAINBEAMFROMAWIDEFLANGEBOXINSTEADOFTHEMAINSORGHUMTWOMAINSORGHUM,RESPECTSMALLER,BUTMORECOMPLEXMANUFACTURING4TRUSSTYPESTRUCTUREFROMFOURPLANETRUSSSTRUCTUREINTOACLOSEDSPACE,INTHEGENERALLEVELOFTHESURFACETRUSSSHOPSFOLLOWPLATE,LIGHTWEIGHT,RIGIDITY,BUTCOMPAREDWITHOTHERSTRUCTURES,ANDITSDIMENSIONS,CREATINGMORECOMPLEX,FATIGUELOWERINTENSITY,HASBEENLESSPRODUCTIVEPARTIALFASTINGTRUSSSTRUCTURESIMILARTOTHEMAINTRACKSBOXGIRDERFROMTHEFOURCOMPONENTSOFACLOSEDSTEELSTRUCTURE,INADDITIONTOTHEMAINWEBFORTHESOLIDSHAPEDBEAM,THEOTHERTHREEPLATEINACCORDANCEWITHTHEDESIGNREQUIREMENTSCUTINTOMANYWINDOWS,FORMINGANORAMPSFASTINGTRUSS,INTHELOWERLEVELOFTHESURFACEOCCUPIEDBYTAKINGTRUSSPLATE,CRANESANDTHEOPERATIONOFELECTRICALEQUIPMENTINSTALLEDINTHEBRIDGEHOUSE,LIGHTERFORCES,THEOVERALLSTIFFNESS,ANDTHATINCHINAISAMOREWIDELYUSEDTYPEGENERALOVERHEADCRANEUSEDMAINLYDRIVENPOWER,THEGENERALISINTHEDRIVERINDOORMANIPULATION,BUTALSOREMOTECONTROLFROMTHEWEIGHTOFUPTO500TONS,UPTO60MSPANSIMPLEBEAMBRIDGECRANEKNOWNASSORGHUMCRANES,ANDTHESTRUCTUREANDCOMPOSITIONOFORDINARYBRIDGECRANESIMILARTOAWEIGHT,SPANANDSPEEDARESMALLERBRIDGEISTHEMAINSORGHUMOROTHERSTEELIBEAMANDPLATESTEELGIRDERSECTIONCOMPOSEDOFSIMPLE,HANDPULLORELECTRICHOISTACCOMPANIEDBYGOURDSIMPLEASLIFTINGTROLLEYCAR,THECARUSUALLYINTHEWORD徐州工程学院毕业设计论文3SORGHUMRUNONTHENEXTFLANGEBRIDGECANBEELEVATEDALONGTHEORBIT,BUTALSOALONGTHEELEVATEDSUSPENSIONINTHEFOLLOWINGORBIT,SUCHASACRANEHOISTEDSORGHUMCRANEMETALLURGICALDEDICATEDBRIDGECRANEINTHESTEELPRODUCTIONPROCESSCANBEINVOLVEDINASPECIFICPROCESSOPERATION,ANDITSBASICSTRUCTUREANDGENERALOVERHEADCRANESIMILAR,BUTINSMALLVEHICLESAREEQUIPPEDWITHLIFTINGTHEWORKOFSPECIALAGENCIESORDEVICESTHISFEATUREISTHEWORKOFACRANEUSEDFREQUENTLY,POOR,WORKINGLEVELHIGHERDUALBEAMBRIDGECRANEFACTORIESONTHETRACKALONGTHEVERTICALDIRECTIONOFMOVEMENT,THELATERALMOVEMENTANDTROLLEYMOVEMENTSCAMPAIGNTOHOOKWORKAPPLIEDTOMACHININGANDASSEMBLYSHOP,AMETALSTRUCTUREWORKSHOP,MECHANICALWORKSHOPS,METALLURGYANDCASTINGWORKSHOPANDWAREHOUSETYPELIFTINGWORKWITHSCORESFROMTHEWEIGHTOFTHEFORM,MOLECULARWEIGHTMAINLYGOUQI,THEDENOMINATORASVICEGOUQIWEIGHTTHEREAREFIVEMAINTYPESCASTINGCRANEFORTHELIFTINGOFHOTMETALINTOMIXER,FURNACESANDMOLTENSTEELINTOLIFTINGEQUIPMENTORCONTINUOUSINGOTSTEELINGOTMOULDUSEDSHENGBARRELSLIFTINGTHECAR,AFLIPSHENG,DEPUTYTROLLEYBARRELS,ANDOTHERAUXILIARYWORKTONGSCRANEUSINGTONGSHIGHTEMPERATURESTEELINGOTWILLBEVERTICALLYBEINGLIFTEDONTOADEEPSOAKINGPITS,ORPUTITOUTTHECARSHIPPEDSPINDLESSTRIPPERCRANEANINGOTFROMTHEMANDATORYEXTRUSIONINGOTMOLDTHEREARESPECIALSMALLCARSTRIPPERDEVICES,SPINDLESSTRIPPERUNDERWAYANDTHESHAPEOFTHEMODELSOMESTRIPPERCRANEISATTRIBUTABLETOSUPPRESSBILLETS,INGOTSFILEDWITHTHECLAMPMODULE;SOMEOFTHECLAMPPUNCTUREDINGOTMOULD,WITHINGOTFILEDSMALLPAIROFPLIERSFEEDINGCRANECHARGEWILLBEADDEDTOTHEOPENHEARTHFURNACETROLLEYBOTTOMOFTHECOLUMNWITHTHEPICKANDINCITINGMATERIALTOMEANDITINTOTHEFURNACETHEMAINCOLUMNTOBYPASSTHEVERTICALAXISROTATION,PICKANDROTARYCANSWINGFROMTOPTOBOTTOMDEPUTYCARREPAIRFURNACEFORSUCHAUXILIARYOPERATIONSFORGINGCRANETOMEETWITHHYDRAULICFORGINGLARGEWORKPIECESTROLLEYDISPLAYEDONTHEMAINHOOKUPSPECIALFEEDERTOSUPPORTANDFLIPTHEWORKPIECE;VICECARUSEDTOLIFTTHEWORKPIECEDUALBEAMBRIDGECRANE,THEBIGGESTWEIGHTFROM100TONS,THEHOOKANDGRAB,ELECTROMAGNETIC,METALLURGICALCRANES,QUENCHINGCRANE,MANUALDOUBLEGIRDERBRIDGECRANE,ELECTRICHOISTDOUBLEGIRDEROVERHEADCRANEWITHTHECRANEUNITJB/T14405GENERICBRIDGECRANESTANDARD,THEQUALITYOFPRODUCTSTOJB/T53442UNIVERSALOVERHEADCRANEPRODUCTQUALITYGRADEFIRSTCLASSREQUIREMENTSITSSTRUCTURALFEATURESOFSTARTINGUPANDRUNNINGWITHTHECARRUNNINGONTHEBRIDGE,AMETALSTRUCTUREFORTHEDOUBLEGIRDERBOXFORMFROMTHECHARACTERISTICSOFTHEDEVICEINACCORDANCEWITHTHECLASSIFICATIONFORTHEHOOK,GRAB,ELECTROMAGNETICANDMULTIPURPOSEBRIDGECRANE,MAINLYFORTHEMINES,FACTORIES,WHARVESANDWAREHOUSES,ANDOTHER徐州工程学院毕业设计论文4MATERIALHANDLINGOPERATIONSFREQUENTSTOPS,ASACRANEQUENCHINGEQUIPMENT,AHIGHSPEEDHEATTREATMENTPROCESSOFDECLINEMETALLURGICALCASTINGMOLTENSTEELCRANETOTRANSPORTPACKETISINDISPENSABLETHANSMELTINGINDUSTRIALEQUIPMENTTHEUSEOFMODERNMEANSOFSCIENCEANDTECHNOLOGY,WILLENABLEANYCRANESTRUCTUREWITHAJUMPSPEEDPERFORMANCECANBEUSEDWITHHIGHLEVELROTATINGHOOKFORSTACKINGOPERATIONSSINGLEGIRDERBRIDGECRANE,THELARGESTWEIGHTOF10TONSFROM,HOOKANDGRAB,ELECTROMAGNETIC,FLYINGSINGLEGIRDERBRIDGECRANE,MANUALSINGLEGIRDERBRIDGECRANEWITHTHECRANEUNITJB/T1306ELECTRICSINGLEGIRDERBRIDGECRANEANDJB/T2603ELECTRICSINGLEGIRDEROVERHEADCRANEHOISTEDTHESTANDARDREQUIREMENTSITSSTRUCTUREISCHARACTERIZEDMANUALORELECTRICHOISTMONORAILCARALONGTHEMAINBEAMUNDERTHEFLANGEIBEAMOPERATION,MATERIALHANDLINGOPERATIONS,NORMALLYUSEDFORWORKSHOPS,WAREHOUSESANDOTHERMATERIALHANDLINGOPERATIONS,WHICHMANUALDOESNOTALLOWFORSINGLEGIRDERCRANENOELECTRICITYORPOWEROCCASIONSGRABMOTORWITHTHEMONORAILORBULKMATERIALSCANALSOBEUSEDTOGRABOPERATIONS,THEUNITCRANECOMPACTSTRUCTURE,OPERATIONALFLEXIBILITY,CANBEUSEDTOGROUND,CANALSOBEUSEDTOOPERATETHECABSPECIALCIRCUMSTANCESCANALSOBEUSEDFORREMOTEOPERATIONINDUSTRIALPRODUCTIONORSTORAGEISINDISPENSABLEEQUIPMENTCRANENORMALWORKINGHOURSTOALLOWALIFTINGOFTHEGREATESTQUALITYASRATEDSTARTINGWEIGHTRATEDCRANEHOOKFROMTHEHOOKANDTHEWEIGHTDOESNOTINCLUDETHEFIXEDPULLEYGROUPTHEMSELVESGRABSUCKERANDELECTROMAGNETICDEVICES,SUCHASTHEQUALITYOFADMISSIONINCLUDEDINTHERATINGSFROMTHEWEIGHTINACCORDANCEWITHTHESTANDARDPROVISIONSOFTHEBRIDGECRANEFROMTHEWEIGHTOFASERIESOFPRIORITYNUMBERSYSTEMISR10,FROM32T,BEGINNINGWITHTHEINCREMENTOF125GONGPI4,5,63,8,10,125,16,20,25,32,40,50TBUTDOMESTICPRODUCTSONLYUNDERTHEBRIDGECRANEYEARSOFPRODUCTIONPRACTICES,FROMTHEABOVESERIESOFELECTEDPARTOFTHEACTUALCOMPOSITIONOFASERIESOFWEIGHTISTHEMOSTCOMMONLYUSEDSERIES5T,10T,16T,20T,32TAND50TNORMALLY,WHENAWEIGHTOFMORETHAN10T,ORFROMTHEESTABLISHMENTOFTWOBODIES,NAMELYTHELIFTINGOFLIFTINGBODIESANDINSTITUTIONS,BOTHFROMTHEWEIGHTOFARATIOOFABOUT14MAINBODYFROMTHEWEIGHTOR,FORLIFTINGHEAVYCARGOLIFTINGOFTHEWEIGHTFROMTHESMALL,BUTFASTER,LIGHTERFORTHELIFTINGOFTHEGOODSORFORSUPPORTINGEFFORTSTOENHANCEWORKEFFICIENCYGENERALMAYBETHEBIGGESTCRANELIFTINGWEIGHTSTODETERMINETHESTARTINGWEIGHT,TAKINGINTOACCOUNTTHECONDITIONSOFWORKREPRODUCEDORPROCESSREQUIREMENTSCRANEDOESNOTALLOWTHEUSEOFOVERLOADING,INTHELIFTINGOFTHEFREQUENTCHANGESOFTHEOCCASION,CRANESHOULDCONSIDERCERTAINMARGININSOMECASES,THEOCCASIONALOBJECTTOTHELIFTINGOFOVERWEIGHTAVAILABLEWHENTWOCRANESCOORDINATEDOPERATIONSINTHEPROCESSFIXED,THELIFTINGOFTHEWEIGHTWILLREMAINBASICALLYUNCHANGED,THEUSEOFCRANESLOADEDWITHTHEBASICCIRCUMSTANCES,CANBE

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