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TheDesignoftheOverallandATypeofDoorFrameof60TonsGantryCrane speaker xxx TheMainContents thebasisofthepapertheresearchcontentstheresearchmethodssummaryandoutlook TheBasisofThePaper 1 TheDevelopmentofCraneInrecentyears theroleoftheliftingtransportationmachineryisbeyondthescopeofauxiliaryequipmentduetothecontinuousdevelopmentofindustrialtechnology Andthenthismachineryhasbeendirectlyusedintheproductionprocess Ithasbeenthemainpartsoftheassemblyline Tendency 2 TheshortageofthedomesticcranesTheperformanceofproductsanddevelopmentabilityisweak Thelevelofmanufacturingtechnologyislow Theproductdetectionlevelisnothigh Thefittingssupplyisinsufficientandthequalityispoor Theupdateofproducttechnologystandardislagandislackofexecutiveforce TheResearchContents TheDesignoftheOverallandATypeofDoorFrameof60TonsGantryCrane Determiningtheoveralldesign includingthedoorheight themaingirdersspan gatelegtypeandbasicsize etc Calculatingthestrengthofcomponentsorstructureofthecrane thencheckingthestrengthandstability theresearchmethods 1 Thedesignparameters 2 TheTypeofLoad 3 ConfirmingAPreliminarySchemeThedoorframe typeAlegs singlebox doublebeamsstructure TheheightofmaingirderisH 15m thespanisL 30m Thehingetypeoflegsistworigidlegs 4 DesigntheDimensions Thedeterminationofmaingirdergeometrysize GeometricFeaturesofGirders Areas SL 48976mm2Momentofinertia Ix Iy Sectionmodulus Wx Wy Thedeterminationofcross sectiongeometrysizeofdoorlegs GeometricFeaturesofDoorLegs Areas ST 60576mm2Momentofinertia Ix Iy Sctionmodulus Wx Wy 4 CaulculateLoad WindLoads 5 CaulculatetheInternalForceofGirder Theinternalforcediagramsofgirder Theverticalin planebendingmomentofgirder Thehorizontalin planebendingmomentofgirder 6 CheckingtheStrengthofGirder Themaximumvalueofbendingstressis 1 Whilethelittlevehicleisatthemidspan 2 Whileatthecantileve So theselectedsizemeetsthestrengthdemandofgirder 7 CaulculatetheInternalForceofDoorLegs Whilethelittlevehicleislocatedinthethemaingirderacross Whileatthecantilever CheckingtheStrengthofDoorLegs Themaximumvalueofthedoorlegsis whilethelittlevehicleislocatedinthemaingirderacross So theselectedsizemeetsthestrengthdemandofdoorlegs SummaryandOutlook Thedesignofthemainbeamsanddoorsleghasbeenillustratedindetailinthispaper Inaccordancewithlimitstresscalculationmethodandallowablestresscalculationmethod theauthorhascheckedthestrengthofthemainbeamsanddoorsleg Intheend theauthorhasdeterminedthefinaldecisionoftheappropriatesizeinthemainbeamanddoorslegflatplane Anewstageofthedesignofthecrane ElectronicComputerTechnologyOptimizationofEngineeringValueEngineeringReliabilityEngineeringCreatingEngineeringMan mac
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