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外文翻译--压力机.doc

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外文翻译--压力机.doc

附录英文翻译Leverbodyisa500t,600t,800t,1300t,2000tmechanicalpressonanimportantcomponentmoldclampingbodyparts,isthecompanyskeyprojecttrial.Currently,foreignmadeleverbodyisformedinthedieforginghammer,forginginternalqualityandappearancethanthoseofgoodquality.Forgingabroadasdomesticmanufacturersdonothavethecondition,onlyinthefreeforginghammerontheshape,qualityishardtomeetthedesignrequirements.Astheleverbodypartssurfacemore,ifcompletelyrelyonforming,notonlydifficultprocess,andpresentmaterialwaste,processingcycles,highcostsInaddition,aslevershapedbodyofworkloadislarge,themechanicalperformancerequirementsofmaterialshigher.Theprocessformingtheleverbody,theCentralDepartmentoffiberunreasonablydifficulttoguaranteequalityoftheworkleverbody.Thus,accordingtotechnicalconditionsexistingprogramstodetermineforgingmanufacturingwithmembranesandtoidentifywiththelocalcombinationofforgingandfreeforgingmethods.Usingsuchaforgingprocesshasthefollowingadvantages1leveragewiththelocalbodyaftertheringDieDepartmentoffibersreasonabletoensurethequalityforgings2,comparedwiththeoverallforging,dielength,1.9timesshorter,themodulesmallsize,lowcost3cangainleverageinthe400kgpneumatichammerdirectlyonthemolding,toimproveefficiency.Incontrast,theoveralldieforginghammerblowinthe400kgpreforging,pneumatichammer,shapingthe3t,moduleslargehighlaborintensity,lowefficiency4plusthefreeuseoflocalForgingProcess,productionpreparationperiodisshort,canquicklyformaproductioncapacity5reducedcolddifficulty,shortenedprocessingcycles,savingprocessingcosts.Therefore,theuseoflocalplusfreeforgingdieforgingprocessschemecanonlyguaranteethequalityforgings,whileheadofproductionefficiency,andcostadvantages.Butthematerialsandmanufacturingprocessesonthenextblankrequirementsmorestringent,throughbatchexperiments,thefinalintheactualproductionhasbeensuccessful.Punchingdeviceisacolossal,sophisticatednationaldefensebuilding,inparticularthebasisofcurrencysuchastheautomotiveindustrytoequipandstrategicindustry.Geartransmissionsystemisamechanicalpressstampingequipment,particularlyintheimportantparts.Inthemechanicalpress,theimpactloadisthemainformloads,geartransmissionsystemforthestrengthofthishasimportantimplications.Therefore,theimpactofmeshinggearsunderloadbyalotofattention.Mechanicalpressmechanicaltransmission,mainlythroughpressureonthemetalsprocessing.Thesoilinthemetalmachiningprocessisoftenaccompaniedbyintensepressurechanges,sothattransmissionsystemtowithstandshockloading.Mostmechanicalpressdrivesystemcomposedbythegear.Undertakeninavarietyofmechanicalpressprocessing,thesoilpressureincreaseoradecreasewiththetrip,inthepartoftheworkareawillmaintainacertainpressure.Whichthereforelegitimatesoilshearprocessingthemostintensepressure,measuredexperimentallyinaseriesofmeasurementpointstontimesLagrangeinterpolationpolynomialcurvefitting.Impactloadisthestampingdevicesufferedamajortypeofloadingisanimportantfactoraffectthegeartransmissionsystem.Thispaperanalyzestheformofstampingequipmentload,andthroughtheestablishmentoftheimpactloadcurvefittingexpression.Hertztheoryofelasticcollisionsubsequentlyestablishedonthebasisoftheimpactloadsofgearmeshingforceunderthesimulationmodel,simulationofthegearmeshingforce,andtheimpactofdifferentpeakloadsmeshingforcewerestudied,andsimulationresultsanalysis.Simulationresultsshowthattheimpactloadofgearmeshingforcehasasignificantimpact.Whichshowedacyclicaloscillationstableloadcharacteristics,andimpactloadstypeaffectedtheformofthegearmesh,andJapanastheloadincreases,theamplitudeoffastdecayinthepeaksection,decayrateincreasesasthepeakloadspeed.Meanwhile,thegearmeshingforcetoenterandexittheworkareaatthestageofpresentationoftheoscillationpeakschanges.Pressurecharacteristicsoftheseoscillationsforthegearstrengthgreaterimpact.Inthegeardesignprocess,accordingtothesimulationresults,combinedwithdynamicloadcalculationmethodtoestimatecanbemoreprecisegeardynamicloadfactor,usefactorandothergearstrengthcalculationofkeyparameters,andthus10gearstrengthdesignisanimportantreferencevalue.Thisissimilartothemechanicalpresstoimpactloadbasedgeartransmissionsystem,thedesignoftheimprovedtransmissionsystemhasanimportantreference.Althoughtheproducthasthestructureofthedomesticmechanicalpressdesignhasbecomerelativelyhot,butinitsdesignanddevelopment,asthedesignersnegligenceandmisunderstanding,aswellasproductsusedintheprocessofunderstandingoftechnicalrequirementsandcharacteristicsofsmallpermeability,lackofknowledge.Thiswilloccuroftenalackofconsiderationorerroronthepressandultimatelyleadtoqualityproblems.Designdefectsandimprovements1.Presscrankshaftsupportatthedesignflawtheoriginaldesignofthecrankshaftissupportedatbothendsfixed.fig.1Improvementmeasuresconventionaldesign,thegeneralbearingofthesupportshaftwiththerearaxlecanbefreetoconsidertheheatexpansion.Therefore,abearingisstationaryandtheotherintheaxialbearingsmusthavethepossibilityofexpansion.Similarly,thecrankshaft,becausetherelationshipbetweenthetemperatureonlyatoneendofthecrankshaftbearingwaslimitedtolocation,theothermustbeleftaskingtheaxialbearinggap,sothecrankshaftcanworkinthelongtermriseintemperatureofpressfreedomaftertheexpansion.2.CrankshaftstressconcentrationDesignflawtheoriginaldesignofthecrankshaftstressconcentrationisveryserious,especiallyinthecrankandcranktomovebothsidesthenOfficeofthecrankshaftbearingalternatingloadfatigueverybad.fig.2ImprovementForhigherpowertransmissioncrankshaft,thebearingloadmostlyalternatingfatigueload.Inordertoimprovethefatiguestrengthofthecrankshafttoreduceweightandsmallneedtoreduceitsownrotaryinertia,thegeneraldesignofasmallcrankshouldtakesolidstructure.Improved,withhollowstructure,thisstructureallowsasmallbutoriginalstressconcentrationstressdistribution,soroundingflatpartofthestress,butalsototheorderofheattreatmentinducedresidualstresselimination.Chinaspressmanufacturingisrapidlyforward.Now,thedomesticpressawiderangeofvariety,thefollowingdescribesatypicalproductusageandstructuralperformanceJ23SeriesOpenBackInclinablePressPurposeandstructureperformanceTheinclinableframemadeofcastironmaketheworkpieceorscraptoslidedownfromthedie.Thepressadoptsarollingkeyclutchandhastwooperationmodessinglestrokeandcontinuousstroke.Thefrictionbrakeisused.Fixedwiththeslide,theoverloadprotectorwillbedamagedtoprotectthemachinefromoverloading.Thispresshaswiderangeofapplication,highprecision,reliableperformanceandeasyoperation.Thepresscanrealizesemiautomationproductioniffixedwiththeautomaticfeeder。Userscanchooseemergencystopequipmentforthepressabove25tons.JESeriesCTypeHighPerformancePressWithFixBedPurposeandstructureperformanceSquarefigurelongguidewithsixfrictionfacesmakesabrasionresisimportedhydraulicoverloadprotectorhassensitiveresponseandreliwetclutchengagesstablywithlownoise,whichbelongstolongtermclosedbevelgear,dippedinlube,whichdrivesstablywithlownoiseslidewithcounterbalancer,whichwilleliminatetheclearanceandintermittentautolubricationmakeseverypointgetfineandsafeluinfinitespeedvariationequipmentiseasyfordiechangingPLCelectriccontrolsystemissafeandreliableaircushion,photoguard,autofeeder,speeddiechangingareoptional.SHSeriesSuperHighSpeedPressPurposeandstructureperformance

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