机械类文献翻译现代工程机械行业的技术进步.docx

机械类文献翻译现代工程机械行业的技术进步.docx

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机械类文献翻译现代工程机械行业的技术进步

英文原文

Modernconstructionmachineryindustryoftechnicalprogress

Large-sizemechanicalminingexcavatorisusedwidelyininternationalanddomesticengineeringconstructionandminingperformance,anditspropertydefinestheefficiencymuch.Nowbecausetheinternationalmarketisopenedstepstep,howtopromotethequalityofexcavatoristhekeythatafactoryreinforcesitscompetingforce.

Inourcountry，thedesigningelevationandproductionqualityonexcavatorcannotkeepupwithinternationaladvancedtechnologyapplyingonexcavator.Nowtheadvancedtechnologyhasalreadyappliedadvanceddesigningmethodonexcavatordesigning，suchaselectronicsimulatingtheory，dynamicdesign，reliabilitydesignandsoon.Butinourcountry,themostexcavatordesignhasstillappliedthetraditionaldesignmethod,themoderndesignmethodhasnotbegantobeactuallyapplied.Theprimedisplayisthatthecapabilityofself-designisnotenoughandthebasicworkhasnotdoneperfectlyespeciallytheexcavatorkinetics.

Theconstructofexcavatorisverycomplexandthemultiplemoversoftenworksimultaneously.atthesametimeitsworkingenvironmentisverybadandtheeternalloadvariesrandomly.Asaresult,whendesigningthenewproductofexcavator,inordertoensuretheperformancesafety，thedesignernotonlyhasthebasictheoryanalysisonstaticloadcomputing,butalsodonecessaryworkaboutthekineticsofmechanismtoqualifythedynamicreliabilityintheperiodofdesigning.Troughthekineticanalysis,theloadpropertyofalltheelementsinexcavatorcanbedecidedsoastodesignreliableproduct.

Fromthe1980softhe20thcenturytothebeginningofthiscentury.Chineseandforeignengineeringmachinerytechnologyproductscomefromamaturityperiodofmodernizationalongwithanewtechnologicalrevolution,Mechanicalengineeringproductsintegratedtechnologytoanewlevel.Electronictechnology,micro-computer,sensors,electro-hydraulicservocontrolsystemintegrationandtransformationofthetraditionalmechanicalengineeringproducts,Computer-aideddesignandcomputer-aidedmanufacturingandcomputer-aidedmanagementofconstructionmachineryandequipmentmanufacturing,ITnetworktechnologyequipment,constructionmachinerysalesandinformationtransfersystems,thusenablingpeopletoseeabrandnewconstructionmachineryindustry.Newconstructionmachineryproductsintheefficiencyandoperationalquality,environmentalprotection,performanceandautomationaremanyareasduetothepast.andtowardthefurtherroboticandintelligentdirection.

1、operatingprinciplesofInnovation:

groundbreakingnewlawwiththehigh-frequencyvibration

Withscientificandtechnologicalresearchinthedevelopment,engineeringmachineryoperatingtheoryisconstantlyinnovating.Operatingmechanicalengineeringprinciples,includingthecuttingofearth,brokengroundonthescreengeotextilematerial,mixedwithheating,rightmixtureofpaving,levelingandcompaction,etc..TheseoperationsJimmyinitiallybionicsandNewtonianmechanics-based,Modernscienceandthedevelopmentofengineeringmachineryoperatingprincipleoflayingthefoundationforinnovation.Forexample,mechanicalvibrationandpulsejet,thephotoelectriceffectandthermalphysics,theapplicationofmechanicalengineeringtosaveresourcesandimprovethequalityofconstructionimproveproductionefficiency,reliabilityanddrivingcomfortandadegreeofautomationtocreateconditions.

Excavators,bulldozers,loaders,andotherearthmovingmachinerycuttinggroundbreakingproject,wehadnostrugglemilling,high-frequencyvibration,Liquidgasjetmethodandporousgroundbreakinglaw.Groundbreakinguseofthenewoperatingprincipleoftransformationtoabucket,canloosenthesoilexcavationforthehigh-intensityrock,Undernormalcircumstancescanreducetheunitcostofearthworkandimproveproductionefficiency,andthesoilnearthebuildingwhensubstitutebored-blastingmethod.

VibratoryRollerisamechanicalvibrationandhavereacheda"sluggishvibrationto"operationaleffectivenessofthemostpowerfulnote.High-frequencyvibrationcompactiontechnologyistheapplicationofmoderndynamicsinthemechanicalengineeringimportantresearchresults,Invibratoryrollersimultaneouslywiththeapplicationofvibrationisolationtheory.90softhe20thcentury,therehavebeenalevelofvibration（vibration）andverticalvibrationdirectionalvibrationcompactionmethod,andanAM-vibrationanddifferentfromtheharmonicvibrationofchaoticvibrationvibratorycompactionoperatingprinciple,andtheformationofthecorrespondingseriesofvibratoryroller.ImpactRollerbroketheexistingtraditionalcylindricalrollerstructure,Use3-5edgewiththepressurerollerpolygondraggedbyatractor,2-3timespersecondinordertoimpactontheground.Thishasdramaticimpactontheseismicwavepropagationcharacteristics,thedepthofcompactionseveraltimeswiththeRCCandincremental,5minthedepthsofthedegreeofcompactionofup90%-92%.ImpactRollerisstaticshock,vibrationandrubitsmashesthecomprehensiveroleforlargefill,Collapsedrysandandsoilfillingthecompaction.

AsphaltpaverWeipingequipmentisoperatingprinciplesofmechanicalengineeringinnovationtypicalexample.Fungplatediesel,liquefiedpetroleumgasorelectricheatingand60Hzfrequencyofvibration,andusinginfrared,ultrasonicorlaserleveling,isamultidisciplinaryhigh-techapplications.Thislevelingthetechnologycanbeappliedtothegroundplane,asamlodipineorfinelevelingtheslope.

Transferfrequencymechanicalvibrationisalsocommonlyusedfordrilling,stonecrushingandsievingandShenpullingpilingworks.Thestonedryingcanusediesel,fueloilandcoalcombustionofvariousfuelsontheasphaltfromthebarrel,heatingandasphaltmixture,stirringandinsulationprocessisthefulluseofthermaltheoryofphysics.Asphaltemulsionandsomearemodifiedchemicalreactionphysicalspecificapplication.

2、driveinnovation:

universalhydraulicandelectricdrive

Hydraulicdriveinthe20thcentury,the1960sappliedtotheroller,only10yearsonthetimehasbeenspreadandpopularize.Nowrollertravel,vibration,steeringandbrakingsystemshasachievedthefullhydraulicdrive.Hydraulicdrivegreatlysimplifiedtherollerdriveandcontrolsystemdesign,hydraulicdriveasmooth,convenientmanipulationeffort,easytoachievevariablespeedandautomation,ingeneral,improvetheproductionefficiencyofrollercompactionandquality.Nowforeignmarketshaveseenverylittlemechanicaltransmissionoftheroller.

Hydrostaticdrivetechnologyinthe1970sbegantousebulldozers,andwillsoonbeextendedtoanumberofsmallandmediumbulldozersandloaders,theUnitedStatesJohnDeere,Caterpillar,GermanyBohaibenefitcompaniesandDoleproducedbyKomatsuofJapanhasproductionandsalespushedTemplehydraulicmachinesandloaders.Hydrostaticdrivenottousehydraulictorqueconverter,whichdispensewiththeleftlaneandbrakepartsandmechanicaldrive,useofasafetyvalveonmechanicalandhydraulicsystemsoverloadprotection,andtheindexofsmallerpowerplaybiggestindex,itsremainingpoweravailableintheauxiliarymachineryoperation.

GermancompanyDeutschemarkandLeeBohaiFallofotherpubliccompaniesin1954andin1955tooktheleadindevelopingahydraulicexcavator,butthehydrostatictransmissioninlargeexcavatoristhepopularizationandapplicationofthe1970s.Sincetheearly1980s,excavatorsandsubdivided,isgraduallyrealized-powered,rotaryandthehydraulicexcavatorof.Intheinternationalmarketexcavators,werealleliminatedvariousmechanicaldrive.

Latehistoryofthebirthoftheroadismoremechanicalhydraulicdrive-based,suchaspaver,soilstabilizer,Pavementmillingmachine,hydraulictransmissionsmoothnesshelpimprovethequalityoftheroadspaved.Drillinginthecaranddrillingmachines,hydraulictransmissionhasreplacedthepreviousaerodynamic,Wheeledmoderncranesandmachineryalsopilingworktothewholeinthedirectionofhydraulicdevelopment.

Electricityinindustrialproductionwhiletheapplicationhasalonghistory,butinmobilemachineryisseldomused.Thisisbecause,firstly,tothemotorcapacityof,amotorwiththesamepowerascomparedtothehydraulicmotor,itsweightandbulktogoodtimes,tothemachineryspacelayoutbroughtgreatdifficulties.Inaddition,theefficiencyofelectricaltransmissionoverlowefficiencyandconsumptionofalargevolumeofnon-ferrousmetals.Butelectricdrivecanbewellrealizedvariablespeed,brakingandelectricalpowerstreaming--Drivemoreconvenientandeasytolargetub,largeexcavatorandlargeloaders,engine-generator-electricwheelswilltransferpower.GermanyVogelealsobeendevelopedforelectricpowerwilltransferwheel.GermanyVogelealsobeendevelopedelectricdriveanasphaltpaver,theaircraft'ssystemsareallrotarymotordrivenelectricity,OnlyHopperCDCCandcomfortslablevelingtankstillusehydraulictransmission.Theotheristheregionalmobileoperationsinthesmallerminingsite,theuseofelectricdrivelargeexcavatorloaders,Suchuseofelectricdrivepowertransmissioncableswithouttheengineinstalledonthemachines.

3、ergonomicinnovations:

apeople-orientedandsimplifiedoperation

1980softhe20thcentury,Manyoftheworld'slargestengineeringmachinerymanufacturingcompanyhasinvestedconsiderablehumanandfinancialresourcesformoderndesignmethodologyoftheresearchandused.Ergonomicsisa"people-oriented"design,withemphasisonthemachinesmutualcoordinationan