双盘摩擦压力机结构设计【新版本】（全套含CAD图纸）
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摩擦
磨擦
压力机
结构设计
新版本
全套
cad
图纸
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PROCEDIAENGINEERING29201214861491187770582011PUBLISHEDBYELSEVIERLTDDOI101016/JPROENG201201160AVAILABLEONLINEATWWWSCIENCEDIRECTCOMAVAILABLEONLINEATWWWSCIENCEDIRECTCOMPROCEDIAENGINEERING002011000000PROCEDIAENGINEERINGWWWELSEVIERCOM/LOCATE/PROCEDIA2012INTERNATIONALWORKSHOPONINFORMATIONANDELECTRONICSENGINEERINGIWIEEANINVESTIGATIONONTHEIMPACTNOISEOFASIXBARLINKAGEMECHANICALPRESSYANXINLUOA,RUXUDUBASTATEKEYLABOFMECHANICALTRANSMISSION,CHONGQINGUNIVERSITY,CHONGQING,400044,CHINABTHEINSTITUTEOFPRECISIONENGINEERING,THECHINESEUNIVERSITYOFHONGKONG,SHATIN,NT,HONGKONGABSTRACTCONVENTIONALMECHANICALPRESSCONSISTEDOFCRACKANDSLIDERISONEOFTHEMOSTCOMMONLYUSEDFORSTAMPINGBUTITCANNOTSATISFYDEEPDRAWINGOPERATIONS,INWHICHLONGDWELLINGTIMEINTHEBDCISDESIRABLETOAVOIDCRACKORWRINKLETHISMOTIVESTHEDESIGNOFASIXBARLINKAGEFORTHEMECHANICALPRESSHOWEVER,THEWORKINGNOISEISINTRODUCEDBYTHENEWMECHANISMTHISPAPERPRESENTSASYSTEMATICSSTUDYONTHENOISEOFTHEMECHANICALPRESSACOMBINATIONOFNOISESIGNATUREANALYSIS,RIGIDBODYDYNAMICSANALYSISANDFINITEELEMENTMETHODFEMAREADOPTEDTOINVESTIGATETHEROOTCAUSEOFTHENOISEITISFOUNDTHATTHENOISEISCAUSEDBYTHECOLLATIONOFTHEGEARSFINALLY,ANIMPROVEDDESIGNISTHENPROPOSEDANDSOMESUGGESTIONSAREGIVENTOREDUCETHENOISE2011PUBLISHEDBYELSEVIERLTDSELECTIONAND/ORPEERREVIEWUNDERRESPONSIBILITYOFHARBINUNIVERSITYOFSCIENCEANDTECHNOLOGYKEYWORDSSIXBARMECHANICALPRESS,SIGNATUREANALYSIS,IMPACTNOISE,FINITEELEMENTMETHODFEM1INTRODUCTIONCONVENTIONALMECHANICALPRESSCONSISTEDOFCRACKANDSLIDERISONEOFTHEMOSTCOMMONLYUSEDFORSTAMPINGITSTRAJECTORYISNOTCONTROLLABLEATTHEBOTTOMDEADCENTREBDC,ANDHENCEITCANNOTSATISFYTHEDIVERSENEEDS1FOREXAMPLE,LONGDWELLINGTIMEINTHEBDCISDESIRABLETOAVOIDCRACKORWRINKLEFORDEEPDRAWINGOPERATIONS2THISMOTIVESTHEDESIGNOFTHEFIVE,SIX,NINEBARLINKAGEFORTHECORRESPONDINGAUTHORTEL862365106999FAX862365105795EMAILADDRESSYXLUOCQUEDUCN1487YANXINLUOANDRUXUDU/PROCEDIAENGINEERING292012148614912YLUOANDRDU/PROCEDIAENGINEERING002011000000MECHANICALPRESS3,4INGENERAL,INTHEDESIGNOFAMECHANICALMETALFORMINGPRESS,DESIGNERSCONCERNMOSTLYTHEKINEMATICS5FEWHAVESTUDIEDTHEDYNAMICSOFTHEPRESS,THOUGHITISVERYIMPORTANTITSPERFORMANCE6WHENACOMMERCIALPRESSISDESIGNEDANDBUILT,ITSNECESSARYTOINVESTIGATEITSPERFORMANCEANDMAKECONTINUOUSIMPROVEMENTSINTHISRESEARCH,ASIXBARLINKAGEINCLUDINGAFOURBARLINKAGEANDACRANKSLIDERMECHANISMHASBEENADOPTEDTOBUILDACOMMERCIALMECHANICALPRESSWITHTHECAPABILITYOFMAXLOADINGOF300TONDESIGNENGINEERSHADCAREFULLYCHECKEDTHEKINEMATICSOFTHEPRESSANDTHEMANUFACTURINGANDASSEMBLIESWEREDONEWITHINTHEDESIGNSPECIFICATIONANDTHEREFORETHEPRESSWORKSFINETHOUGH,THEPRESSGENERATESLOUDNOISEWITHANDWITHOUTLOADINGTHESOUNDINTENSITYISHIGHERTHAN90DB,WHICHCAUSESVARIOUSCONCERNS,SUCHASTHERELIABILITYOFTHEMACHINEANDTHESAFETYOFTHEOPERATORTHEMECHANISMOFTHEDRIVELINEISILLUSTRATEDINFIG1A,ANDITSCADMODELISSHOWNINFIGURE1BITCONSISTSOFSEVENPARTSAMOTORNOTSHOWNINTHEFIGURETHATCONNECTSTOTHEFLYWHEELTHROUGHTHEHIGHSPEEDSHAFT,AREDUCTIONGEARSETWHICHINCLUDESTHEHIGHSPEEDGEARANDTHELOWSPEEDGEAR,ACOUPLERTHATCONTROLSTHEENGAGEMENTOFTHEGEARSETANDTHECRANK,ACRANKSLIDERMECHANISM,ANDAFOURBARMECHANISMTHATCONNECTSTOTHESLIDERAMONGTHEM,THEFOURBARMECHANISMISTHEKEYASITDOCTRINESTHEDYNAMICPERFORMANCEOFTHEPRESSL145MML2165MML3208MML4260MML580010000MME80MMFIG1AILLUSTRATIONOFTHESIXBARLINKAGEMECHANISMBTHEPHYSICALMODELOFTHEMECHANISMTHISPAPERAIMSTOFINDTHEROOTCAUSESOFTHENOISETHEPRESENTEDRESEARCHWILLINVESTIGATETHENOISEFROMVARIOUSASPECTSANDPROVIDEIMPROVEMENTSOLUTIONSTHERESTOFTHISPAPERISORGANIZEDASFOLLOWSTHESIGNATUREANALYSISOFNOISEISPRESENTEDINSECTION2INSECTION3,THEDYNAMICSOFTHESYSTEMISSTUDIEDBYRIGIDBODYDYNAMICSANALYSISANDFEMINSECTION4,ANIMPROVEDDESIGNISPROPOSEDTOREDUCETHEIMPACTNOISEFINALLY,CONCLUSIONSAREGIVENINSECTION52SIGNATUREANALYSISOFNOISESIGNAL21EXPERIMENTALSETUPASMENTIONEDEARLIER,THENOISEISTHEMAJORCONCERNOFTHEDESIGNTHEFIRSTSTEPISTOANALYZETHENOISESIGNALTHESOUNDSIGNALWASMEASUREDUSINGAMICROPHONEPLACEDCLOSELYTOTHEPRESSFIGURE2SHOWSTHEEXPERIMENTALSETUP,THEMAINAPPARATUSESINCLUDEAMICROPHONEMANUFACTURERBRELANDCTHEIMPACTFREQUENCYIS23HZITISNECESSARYTOANALYZETHEDYNAMICSOFTHEDRIVESYSTEMTOFINDTHEROOTCAUSEOFTHENOISE3DYNAMICSANALYSIS31IMPACTFORCEANALYSISTOINVESTIGATETHESOURCESOFTHENOISE,THEDYNAMICMODELOFTHESYSTEMISNECESSARYFORFURTHERINVESTIGATIONOFMECHANICAL,WHICHMAYREFLECTREALWORKINGCONDITIONS,SHOULDBECONSTRUCTEDFORANACCURATELOADINGANALYSISINTHISRESEARCH,THEDYNAMICANALYSISOFTHEPRESSISCARRIEDUSINGACOMMERCIALSOFTWARESYSTEMRECURDYNALLJOINTFORCEBETWEENTHELINKAGESAREOBTAINEDBYTHISSIMULATION,AMONGWHICHTHECONTACTFORCEBETWEENTHEGEARSISATTRACTEDOURINTERESTINGFIG7SHOWSTHECONTACTFORCEINBLACKBETWEENTHEGEARS,ANDITSDIFFERENTIATIONINORANGEEXAMININGTHEDIFFERENTIATIONOFTHEFORCE,ITISSEENTHATTHECONTACTFORCEQUICKLYCHANGESITSDIRECTIONTWICE,INAANDB,WHENTHEPUNCHISMOVINGUPTHISISVERYLIKELYTOCREATETWOBIGSHOCKSCONSEQUENTLY,ALOUDNOISEWILLBEGENERATEDDIFFERETIATIONN/SPUNCHPOSITIONMMGEARFORCENFIG7IMPACTFORCEBETWEENTHEGEARSINORDERTOFURTHERINVESTIGATETHEFREQUENCYCOMPONENTSINTHENOISESIGNAL,THOUGH,FINITEELEMENTANALYSISFEAISNECESSARY32NATURALFREQUENCIESOFTHEMECHANICALCOMPONENTSITSWELLKNOWNTHATTHEVIBRATIONISUSUALLYCAUSEDBYTHEVIBRATIONOFSTRUCTURE,ANDTHEREFORE,ITSNECESSARYTOFINDTHENATURALFREQUENCYOFTHESTRUCTURETHEANALYTICALMETHODCANBEUSEDTOFINDTHENATURALFREQUENCYHOWEVER,ITISNOTPRECISEBECAUSEOFTHEASSUMPTIONSINPRACTICAL,FEAISAVARIABLEMETHODTOFINDTHEPRECISELYSOLUTIONOFDIFFERENTIALEQUATIONSFORVERIFYINGTHEVIBRATIONOFASTRUCTURETHEREISSOMECOMMERCIALSOFTWAREFORFEASUCHASABAQUS,ANSYS,NASTRAN,ANDETC7,8INTHISRESEARCH,WEUSEDABAQUSTOFINDTHENATURALFREQUENCIESOFTHEMECHANICALCOMPONENTSASSHOWNINTABLE1ALSO,THEFIRSTMODESHAPEOFTHEHIGHSPEEDSHAFTISTORSION,WHICHISINTHESAMEDIRECTIONOFTHETORQUEITISBELIEVEDTHATTHISMODEISRESPONSIBLEFORREPETITIVEFREQUENCYOF23HZANDTHEFOURTHABBA1490YANXINLUOANDRUXUDU/PROCEDIAENGINEERING29201214861491YLUOANDRDU/PROCEDIAENGINEERING0020110000005NATURALFREQUENCYOFHIGHSPEEDGEARANDTHESECONDNATURALOFLOWSPEEDGEARARECLOSETOTHEMAINLYFREQUENCYOFTHENOISEMOREOVER,THECORRESPONDINGMODESHAPEISBENDINGOFTHEGEARTOOTHTHEREFORE,THEGEARTOOTHSHOULDBEFURTHERINVESTIGATEDFIG8ASHOWSTHEFEAMODELOFTHELOWSPEEDGEARTHELOADINGISAPPLIEDTOONEOFTHETEETHTHEAPPLIEDLOADINGISANORMALIZEDFORCEOF1UNIT,INTHEFREQUENCYRANGEFROM1HZTO1,500HZFIG8BSHOWSRESULTSOFTHEFREQUENCYRESPONSEFROMTHEFIGURE,ITISSEENTHATTHEGEARHASTHREEMAINFREQUENCIESAT480HZ,740HZ,AND1,350HZRESPECTIVELYTHELARGESTFREQUENCYCOMPONENTISAT740HZITISBELIEVETHATTHISFREQUENCYISRESPONSIBLEFORTHELOUDNOISETHEDISCREPANCIESBETWEENTHEFEAFREQUENCY740HZANDACTUALNOISEFREQUENCY780HZMAYBEATTRIBUTEDTOTHESIMPLIFICATIONOFTHEFEAMODELINCONCLUSIONS,WEBELIEVETHELOUDNOISEISGENERATEDBYTHECOLLISIONOFTHEGEARS,ANDTHENOISECANBEREDUCEDBYELIMINATINGOFTHEGEARCLEARANCETABLE1MODALFREQUENCIESOFTHEMAINCOMPONENTSOFTHEPRESSHZFIG8AFEMMODELOFTHEGEARPINIONBFREQUENCYRESPONSE4ANIMPROVEDDESIGNBASEDONTHEANALYSISRESULTPRESENTEDEARLIER,THELENGTHOFTHELINKAGESSHOULDNOTBECHANGEASTOKEEPTHETRAJECTORYOFTHEDESIGNALSO,THEINERTIAOFTHEFLYWHEELANDTHESTIFFNESSOFTHEHIGHSPEEDSHAFTETC,CANALSOBEFINETUNEDTOREDUCETHENOISEHOWEVER,THESESOLUTIONISNOTEFFECTIVEBECAUSEOFTHEMECHANICALCOMPONENTSHASSMALLROOMFORIMPROVINGTHEDESIGNDUETOTHESTRENGTHCONSTRAINTSITSANOPTIONTOIMPROVETHEDESIGNBYELIMINATINGTHECLEARANCEBETWEENTHEGEARSTHEPROPOSEDDESIGNISSHOWNINFIG9THEREARETWOGEARSMOUNTEDONTHEHIGHSPEEDSHAFTTOELIMINATETHEGEARCLEARANCEINTHISDESIGN,TWOSETOFGEARPAIRAREUTILIZEDANDONESPIRALSPRINGWILLMOUNTEDBETWEENTHEGEARSTOELIMINATETHEGEARCLEARANCETHEFIRSTSETOFGEARPAIRWILLTRANSMITTHETORQUETOTHECRANKSHAFTFORTHECASEOFTHETORQUEISINCLOCKWISEDIRECTIONWHENTHETORQUECHANGESITSDIRECTION,THESECONDSETOFGEARPAIRWORKSTHEREFORE,ITSBELIEVEDTHATTHEDESIGNWILLREDUCETHENOISEEFFECTIVELYHOWEVER,THEDYNAMICSANALYSISISNEEDEDFORTHENEWDESIGNMODELINTHEFUTUREMODE1ST2ND3RD4TH5TH6THHIGHSPEEDSHAFT2422975482853581010354HIGHSPEEDGEAR673360546617530892911890LOWSPEEDGEAR5931619011478120531278014770UPPERLINKAGE6707478051026185228241491YANXINLUOANDRUXUDU/PROCEDIAENGINEERING292012148614916YLUOANDRDU/PROCEDIAENGINEERING002011000000FIG9ANIMPROVEDDESIGNOFTHEGEARPAIRFORELIMINATINGTHEGEARCLEARANCE5CONCLUSIONSTHISPAPERPRESENTSASTUDYONTHENOISEOFASIXBARMECHANICALPRESSBASEDONTHEDISCUSSIONSABOVE,FOLLOWINGCONCLUSIONSCANBEDRAWNTHEMECHANICALNOISEOFTHEPRESSCONTAINSANUMBEROFCOMPONENTSCORRESPONDINGTOTHENATURALFREQUENCIESOFVARIOUSCOMPONENTSOFTHEPRESSTHENOISEISGENERATEDWHENTHEIMPACTOCCURSTHEIMPACTISARESULTOFTHEFOURBARMECHANISMTHATGENERATESVARIABLESPEEDDURINGTHEOPERATIONTHEVARIABLESPEEDGENERATESVARIABLEFORCE,CAUSINGTHEGEARSIMPACTONEACHOTHERITSANOPTIONTOAVOIDTHECLEARANCEBETWEENTHEGEARPAIRSTOREDUCETHENOISETHECOMBINATIONOFTHESIGNATUREANALYSIS,MECHANICALDYNAMICSANALYSISANDFEMISEFFECTIVEMETHODTOANALYZETHEROOTCAUSEOFMACHINEFAULTSINADDITIONTOTHEAPPLICATIONPRESENTEDABOVE,ITCANBEUSEDFORMANYOTHERAPPLICATIONSTHATINVOLVEMECHANICALMOTIONACKNOWLEDGEMENTSTHIS
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