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Our main lines of business are production and sale of mechanical parts, motors, automatic industrial control system devices; the sale of general purpose equipment and parts, electric machinery and appliance, hardware and electronic product; the design and fabrication of molds.
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Types of mechanical parts failure forms and influencing factors Do you know? Failureofmechanicalpartsmeansthatpartsarepartiallyorcompletelylostindesignduringuse.Thepartiscompletelydestroyedandcannotcontinuetowork;ortheparthasbeenseriouslydamaged,andifitcontinuestowork,itwillloseitssafety;orifitcanworksafely,thelossofdesignaccuracywillbeinvalid.Inordertopreventthefailureofparts,itisnecessarytocarryoutfailureanalysisontheparts,thatis,byjudgingthefailureformoftheparts,determiningthefailuremechanismandcausesoftheparts,selectingmaterials,determiningareasonableprocessingroute,andproposingmeasurestopreventfailure. 1.Mechanicalpartsfailureform Thecommonfailuremodesofmechanicalpartscanbedividedintothreetypes:excessivedeformationfailure,fracturefailureandsurfacedamagefailure. TitaniumMachineryisthemainproductofthecompanywithrotarythimble,screwscrew,machinetoolspindle,shaftmachining,CNClathemachining,shankshankandcolletpost;TitaniumMachinery,professionalqualityassurance!Becauseofprofessionalism,itisexcellent! (1)Excessivedeformationfailure:failureofthepartduetoexcessivedeformationexceedingtheallowablerange.Itmainlyincludesfailuremodessuchasexcessiveelasticdeformation,plasticdeformationandcreepoccurringathightemperatures. (2)Fracturefailure:aphenomenonofseparationintotwoormorepartsthatarenotconnectedduetoexcessivebearingloadorfatiguedamage.Fractureisthemostseriousformoffailure,includingductilefracturefailure,lowtemperaturebrittlefracturefailure,fatiguefracturefailure,creepfracturefailureandenvironmentalfailurefailure. (3)Surfacedamagefailure:failurecausedbydamageordimensionalchangeofthesurfaceofthepartduetotherelativefrictionofthesurfaceorthecorrosionoftheenvironmentalmedium.Itmainlyincludesformssuchassurfacewearfailure,corrosionfailure,andsurfacefatiguefailure. Itshouldbepointedoutthatthesamemechanicalpartsoftenworknotonlyasafailuremode.However,thereisalwaysawayforthepartstofail.Thecoreproblemoffailureanalysisistofindoutthemainfailuremodes. 2.Reasonsforfailureofmechanicalparts Therearemanyfactorsthatcausethefailureofmechanicalparts,whicharecomplicatedandinvolvemanyaspectssuchasstructuraldesignofparts,materialselection,processingandmanufacturingofmaterials,assemblyandmaintenanceofproducts. (1)Unreasonabledesign:Mainlyreferstotheincorrectorunreasonablestructureandshapeofparts,suchasgapsinparts,smallarcangles,transitionzonesofdifferentshapes,etc.Ontheotherhand,itmeansthattheworkingconditionsandoverloadconditionsofthepartsareinsufficientlyestimated,resultingininsufficientactualworkingabilityoftheparts,resultinginearlyfailureoftheparts. (2)Unreasonablematerialselection:Inthedesign,theformofpartfailureisjudgedincorrectly,andtheselectedmaterialperformancecannotmeettheworkingconditions;theperformanceindexbasedonthematerialcannotreflecttheresistanceofthematerialtotheactualfailureform,andthewrongmaterialisselected;Thematerialusedisofpoorquality,thecompositionorperformanceisunqualified,andthedesignrequirementsarenotmet. (3)Unreasonableprocessingtechnology:improperprocessingofpartsmaycausevariousdefects,resultinginpartsfailingearlierinuse.Suchasoverheating,over-burningandbandedstructureduringhotworking;decarburization,deformationandcrackingoccurduringheattreatment;deeperknifemarks,grindingcracks,etc.occurduringcoldworking. (4)Improperinstallationandinstallation:theassemblyandinstallationprocessdoesnotmeetthetechnicalrequirements.Iftheinstallationistootight,tooloose,thealignmentisnotallowed,andthefixingisunstable,thepartsmaynotworkproperlyorfailprematurely;inaddition,Violationoftherulesduringoperation,overloading,overspeed,failuretorepairandmaintainontimewillalsocauseprematurefailureofparts.
2019-03-14
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Do you know the specific content of mechanical parts design and standardization? Processabilityandstandardizationinthedesignofmechanicalparts: First,theprocessability Goodprocessabilitymeansthatthedesignedmechanicalpartscanbeproducedintheshortesttime,theleastamountoflaborandthelowestmanufacturingcost,andareeasytoassemble,disassembleandmaintain.Partsmanufacturinggenerallyincludesthestagesofblankproduction,cutting,heattreatmentandassembly.Eachstageisorganicallylinkedandmustbeconsideredindesign.TitaniumMachineryisthemainproductofthecompanywithmachinetoolspindle,rotaryejectorpin,screwscrew,shaftmachining,CNClathemachining,shankshankandcolletpost.Professionalqualityassurance!Thebasicrequirementsforcraftsmanshipwhendesigningmechanicalpartshavethefollowingaspects: 1.Thestructureofthepartsisadaptedtotheproductionconditionsandscale. Partsproducedinsingleorsmallbatchesshouldmakefulluseofexistingproductionconditions.Forexample,gearblankswithadiametergreaterthan600mmaredifficulttoforgewithgeneralforgingequipment,andcastingsorweldedpartsshouldbeused.Inthecaseofsingleorsmallbatchproduction,itisnotadvisabletousecastingsordieforgingstoavoidthecostofthemoldbeingtooexpensive(especiallydieforging)toincreasethecostofparts.Ifthereisnogrindingmachine,donotuseaheattreatmentmethodwithhightoothsurfacehardnessandhighheattreatmentdeformation. 2,theblankselectionisreasonable Theblanksofthepartsmaybecastings,forgings,rolledparts,weldedparts,stampings,andthelike.Theselectionoftheblankshouldtakeintoaccounttheproductionbatchsize,materialpropertiesandprocessingproperties.Forforgings,freeforgingisrecommendedforsingleorsmallbatchproduction,anddieforgingisrecommendedformassproduction.
2019-03-14
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What are the classifications of motors? First,bytheformofelectricalenergy 1.Therearetwoformsofelectricanddirectcurrent,sothemotorcanbedividedintotwomajorcategories:ACmotorandDCmotor. 2,AChassingle-phaseandthree-phasetwo,therearesingle-phaseACmotorandthree-phaseACmotor 3,thevoltagehasahighandlowvoltagelevel,sotherearealsohighvoltagemotorsandvoltagemotors. Second,accordingtotheprincipleofclassification 1,accordingtothedifferenceinslip,canbedividedintosynchronousandasynchronousmotors 2.Synchronousmotorsaredifferentaccordingtothemagneticfield,andtherearepermanentmagnetsynchronousmotors,hysteresissynchronousmotorsandreluctancesynchronousmotors. 3.Asynchronousmotor,intheformofinduction,alsointheformofACcommutator.Inductiveformsincludethree-phaseasynchronousmotorsandshroudedasynchronousmotors.TheACcommutatormotorisalsodividedintoarepellermotorandaseriesmotor. Third,accordingtothestructuretoclassify 1.Therotorstructureisdifferent.Therearewoundrotormotorandsquirrelcagerotormotor,aswellaspermanentmagnetrotormotor. 2.Accordingtothepositionoftherotorandstator,itcanbedividedintoinnerrotormotorandouterrotormotor. 3,accordingtowhetherthereisacarbonbrush,canbedividedintobrushmotorandbrushlessmotor 4,brushmotorhaspermanentmagnetbrushandelectromagneticDCmotor 5.Accordingtotheexcitationform,DCmotorscanbedividedintoothertypes:excitation,seriesexcitation,andshuntandcompoundexcitation. 6,accordingtodifferentmagneticmaterials,thereareferritemotors,rareearthpermanentmagnetsandAlNiCopermanentmagnetmotors Fourth,accordingtothespeedofdifferentclassification 1,thespeedhashighandlow,sotherearehighspeedmotor,lowspeedmotor,constantspeedmotor,speedcontrolmotor, 2,accordingtothenumberofpoles,thereare2pole,4pole,8pole,16pole,32poleandothermotors 3,low-speedmotor,torquemotor,gearedmotor,directdrivemotor,clawpolesynchronousmotor
2019-03-14
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Asynchronous motor principle characteristics Therotorisarotatableconductor,usuallyintheformofasquirrelcage.Thestatoristhepartofthemotorthatdoesnotrotate.Themaintaskistogeneratearotatingmagneticfield.Therotatingmagneticfieldisnotrealizedbymechanicalmeans,butisconnectedtoapairofelectromagnetsbyalternatingcurrent,sothatitsmagneticpolenaturechangescyclically,soitisequivalenttoarotatingmagneticfield. Therearesingle-phasemotorsandthree-phasemotorsdependingonthetypeofACpowerused.Single-phasemotorsareusedinsuchaswashingmachines,electricfans,etc.Three-phasemotorsareusedaspowerplantsinfactories. 01Asynchronousmotorworkingprinciple Throughtherelativemotionoftherotatingmagneticfieldgeneratedbythestatorandtherotorwinding,therotorwindingcutsthemagneticinductionlinetogenerateaninducedelectromotiveforce,therebygeneratinganinducedcurrentintherotorwinding.Theinducedcurrentintherotorwindinginteractswiththemagneticfieldtogenerateelectromagnetictorquethatcausestherotortorotate. Whentherotorspeedgraduallyapproachesthesynchronousspeed,theinducedcurrentgraduallydecreases,andthegeneratedelectromagnetictorquealsodecreasesaccordingly.Whentheasynchronousmotoroperatesinthemotorstate,therotorspeedislowerthanthesynchronousspeed.Asynchronousmotorsarethemostwidelyusedinelectricvehicles.ComparedwithDCmotors,theyhaveawiderrangeofspeeds,whichcanmeettheneedsofhigh-speedcruisingofvehiclesevenwithoutatwo-dimensionorgearbox. Theasynchronousmotorhastheabilityofvariablefrequencyspeedregulation,anditseffectisequivalenttothelinearrelationshipbetweentheenginespeedandthevehiclespeedwhenthevehicleequippedwiththecontinuouslyvariabletransmissionisunderstoodtoaccelerate. Asynchronousmotorsarealsoeasiertoachievekineticenergyrecovery.Whenthevehicleiscoastingorbraking,thewheelreversesthemotortorotate.Underthiscondition,themotorcangenerateelectricityandrecovertheelectricenergyintothebattery,therebyextendingthecruisingrangeofthevehicle.
2019-03-14
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