辊式矫直机矫直辊的弯辊模型

:2004208210:(G2000067298):(1965-),,,;(1942-),,,,26520055()JournalofNortheasternUniversity(NaturalScience)Vol126,No.5May2005:100523026(2005)05204602031,1,1,2(1.,110004;2.,030024):,,,,80%,5%15%,,,,:;;;;:TG335121:A,[15],,,,,,,,[68],,,1,:(1);(2);(3),,(1)[9]:d2dx2=M(x)EI(1),x;M(x)x;E;I1Fig.1Deflectionofbeam,2,,,,,,P,,,2a,3a,4a,,:,241;,2422,,(1),©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2Fig.2Model:upwardsconvexlevellingroller3Fig.3Model:downwardsconvexlevellingroller4Fig.4Model:skew2axislevellingroller2.1,,2(1)=PB324EI=PB2B212EI=MEIB212=C1wB212=CsEhB26(2),P;B;s;h;1w;C,2.2,3,(1):=PB348EI=P2B2B212EI=MEIB212=C1wB212=CsEhB26(3)2.3,,,,,,,42,,(1):=PB33EI=PBB23EI=MEIB23=C1wB23=CsEh2B23(4)2.4,,C,,,,,80%,5%15%,(515)%h,,1645:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.C=h/2(85%95%)h/211051108(5)(5)(2)(4),3(112285/30023800)630,s=107.8MPa,E=68600MPa,E=13700MPa,1,2,30164,1118,01361,2,31,23,,;3,,,,,,,,,C1Table1Thecomparisonofcalculatedresultsandsetvaluesmmmmmmmm%110.530001.050.700.674.4218.520001.051.351.235.9333.029001.180.800.4250.04(1),,(2),,1.051.15,,,:[1]KadotaK,MaedaR.Amethodofanalysisofcurvatureinlevelingprocessnumericalstudyofrollerlevelingprocess[J].JournaloftheJSTP,1993,34(388):481-486.[2][M]:,2002.86-92(CuiF.Levelingtheoryandmachine[M].Beijing:MetallurgyIndustryPress,2002.86-92.)[3]MatobaT.Calculationmethodofrollerlevelingconditionforsteelplates[J].JournaloftheJSTP,1995,36(418):1306-1311.[4]HibinoF.Thepracticalformulaforlevelingstraininarollerleveler[J].JournaloftheJSTP,1990,31(349):208-212.[5]KumarS.Removalofshapeduringrollerleveling[J].Minerals&MetalsReview,2001,27(7):36-41.[6]TokutakaT.Effectofrolllevelingconditiononplatecurlingafterslitting[J].CAMP2ISIJ,1996,9:1030.[7]TomitaS.Recenttrendoflevelingtechnologyofthickplates[J].JournaloftheJSTP,1999,40(456):8-11.[8]MashuiT,HashizumeF.Developmentofcombinationtypenewhotlevelerforplatemillwithadditionaltensiondevice[J].JournaloftheJSTP,1988,29(333):1010-1016.[9][M]:,1992.212-215(LiuHW.Materialmechanics[M].Beijing:HigherEducationPress,1992.212-215.)BendingModelDevelopedforLevellingRollersZHOUCun2long1,WANGGuo2dong1,LIUXiang2hua1,QINJian2ping2(1.TheStateKeyLaboratoryofRollingandAutomation,NortheasternUniversity,Shenyang110004,China;2.SchoolofMaterialsandEngineering,TaiyuanUniversityofScienceandTechnology,Taiyuan030024,China.Correspondent:ZHOUCun2long,E2mail:[e-mail])Abstract:Onarollerlevelerthedeflectionofaplateundertheactionoflevellingrollersisassumedthatthedeflectionisresultingfromtheforcesexertedbybothscrew2downandbendingroller.Basedontheelastoplasticitytheoryofabeam,thebentplateisreferredtoasabentbeamwiththeentryintermeshalsoconsideredand,generally,about80%ofplatethicknessisofplasticallydeformedlayerand5%15%ortherestisregardedasduetotheeffectofbendingroller.Differentrollerbendingmodelsarethusdevelopedonbeamdeflectionbasistosolvequantitativelythebendingoflevellingrollers.Therollerpsbendingcalculatedtheoreticallyconformswiththesetvalue,whichrevealsthepracticalityofthosemodels.Keywords:rollerleveler;theintermesh;deflection;rollersbending;elastoplasticbending(ReceivedAugust10,2004)264()26©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.