机械专业英文介绍.ppt

机械专业英文介绍.ppt

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Mechanicalengineeringintroduction,Contents,Mechanicalengineeringmajorreview,1,Mainstreammechanicalproductintroduction,2,Hydraulicsupportintroduction,3,Drawinghoistintroduction,4,1.Mechanicalengineeringmajorreview,TheMechanicalEngineeringmajorisdesignedtopreparestudentswithknowledge,problemsolvingability,andhands-onskillstoentercareersinthedesign,installation,manufacturing,testing,evaluation,technicalsales,ormaintenanceofmechanicalsystems.,Themechanicalengineeringtechnologistmakessignificantcontributionsinsupportingengineeringdesign,testing,production,research,anddevelopmentoperationsinawidevarietyofindustrial,aerospace,andgovernmentorganizations.wemustcompletethecourseworkinmajorrequirementsandelectives.,1.Mechanicalengineeringmajorreview,1.Mechanicalengineeringmajorreview,Ourmaintaskistouseadvanceddesigntheoryandmethodofmanufacturingtechnology,modernengineeringfieldstosolvecomplextechnicalproblemsinordertoachievethedesignandmanufactureofintelligentproducts.OperationalmanagementandbusinessmarketingandotheraspectsoftheAdvancedTechnologyTalents.,2.Mainstreammechanicalproductintroduction,Figureisacutawayviewshowingthesetupinalongwallface.Coalatthefaceiscutbyeitherashearerloaderoraplow.Theshearerloadersgenerallyrideonthepanlineofanarmoredfaceconveyer（AFC）,whichislaidonthefloorparalleltothefaceline.Theshearerloadermovesbymeansofaself-containedmotorizedtinchrunningalongastaticchainwhoseendsareanchoredattheendsofthefacenearoratthefiveunitsoftheAFC.Intherecentmodels,theshearerloadersareself-propelledalongaspecialtrackwithouttheaidofthechain.ThustheAFCservesasthetrackforthecuttingmachinetomoveonandasaguidetoholdthemachineinplace.,2.Mainstreammechanicalproductintroduction,2.Mainstreammechanicalproductintroduction,Modernlongwallminingemploysself-advancinghydraulicpoweredsupportsatthefaceaera.Thesupportnotonlyholdsuptheroof,pushesthefacechainconveyor（AFC）,andadvancesitself,butalsoprovidesasafeenvironmentforallassociatedminingactivities.,2.Mainstreammechanicalproductintroduction,2.Mainstreammechanicalproductintroduction,IntroductionofsheaerCoalcutbytheshearerorplowisloadedontotheAFCandtransportedtotheheadentryT-junction.Itisnowthemajorcuttingmachineinlongwallcoalfaces.Therearetwotypesofshearers,single-anddouble-drum.,2.Mainstreammechanicalproductintroduction,2.Mainstreammechanicalproductintroduction,Inlongwallcoalmining,thcoalcutdownbytheshearerortheplowistransportedbytheamoredfacechainconveyor（AFC）,whichislaidacrossthefullfacetidth,totheheadentryT-junction,whereitistransferredtotheentrybeltconveyorthroughthemobilestageloader.,2.Mainstreammechanicalproductintroduction,2.Mainstreammechanicalproductintroduction,Drawinghoistisanewtypeofmineauxiliarytransportationequipment.Itmainlyusedtodismantleandrecyclingminestopefaceofblindmechanicalequipment.,2.Mainstreammechanicalproductintroduction,First:

Introductionofhydraulicsupport,Hydraulicsupport（液压支架）asoneofthemostimportantmachineofcoalminemachinery,playsanimportantroleinensuringthesafetyoftheminers.Bymeansofhighpressureemulsionliquid（乳化液）,hydraulicsupportsustainstheroofeffectively.,Coalminemachineryhydraulicsupport,Second:

Thecompositionofthehydraulicsupport,Thereare6parts:

topbeam、shieldbeam、base、four-barlinkage、hydraulicsupportleg、thrustgear,Coalminemachineryhydraulicsupport,Third:

Theclassificationofthehydraulicsupport,chock-type,shield-type,chock-shield-type,Coalminemachineryhydraulicsupport,Fourth:

workingprincipleofthehydraulicsupport,Hereisashortmovieabouttheworkingprincipleofthehydraulicsupport,whichisbasedonmygraduationproject.,themotionsimulation,Coalminemachineryhydraulicsupport,4.Drawinghoist（回柱绞车）introduction,Drawinghoistisanewtypeofmineauxiliarytransportationequipment.,4.Drawinghoistintroduction,Itmainlyusedtodismantleandrecyclingminestopefaceofblindmechanicalequipment.Tractionbigandtractionspeedslowisthemaindrawinghoistperformancerequirements.Withtheimprovementofmechanizeddegree,itismoreandmorewidelyusedinmechanizationminingface,asinstallation,recyclingofvariousequipmentsaysspareparts.Drawinghoistexcepttodrawingandcaving,alsocanbeusedtoworkhaulingandschedulingvehicles.,4.Drawinghoistintroduction,Drawinghoistmainlyconsistsofelectricmotor,coupling（联轴器）,reducer,thedrumdeviceandelectrichydraulicbrake（电液制动器）etc.Itcanbedividedinto4parts:

Electricmotor（电动机）Reducer（减速器）Drumdevice（卷筒装置）Base（底座）Now,letmeintroducethe4partsonebyone.,4.Drawinghoistintroduction,Electricmotor:

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