斜辊矫直机矫直辊辊形对安装角和接触线长度的影响

22219984JournalofYanshanUniversityVol122No12Apr119981997211(ZhaoBingli),(ZhaoHongyan),(LiuZhiliang),,066004(TheCol2legeofMechanicalEngineering,YanshanUniversity,Qinhuangdao066004)1(LiShuyan),,161042(ChinaFirstHeavyMachineryGroupCorpira2tion,QiqiharFulaerji161042)1TheInfluenceofTheStraighteningRollShapeonAssembleAngleandContactLength,,,,1,,,1AbstractAccordingtothetheoreticalcontactconditionofthestraighteningrollandtubeorbarininclinde-rollstraightener,thispaperoptimizedtheformulaofstraighteningrollshape,andcomparedthedifferencesofassembleangleandcontactlenghthbetweentheidealcontactrollshapeandthehyperbolarollshapewhichiswidelyusedinindustry1Itprovidesthetheorybasisfordeterminingassembleangleandcontactlenghth1Keywordsstraighteningroll,rollshape,assembleangle,contactlength10,1,(),1[13],,1,,,,11[1]1,:Ri=(c2i+c20)1/2-ac0r01+c2i/c20c2ir20+c20a21/2(1)Rizici=zitan0c0=r0+R0a=r0/cos0r0R00()zii1Fig11Contactofstraighteningrollwithtubeaci(1),:Ri=(c2i+c20)1/2-r0a2(c2i+c20)c2ir20+c20a2r1/2=(z2itan20+c20)1/21-r0(z2isin20+c20)1/2),(Li(2)(2):r0,R00,iRizi,(2)Ri=F(zi)1zi,Ri,Mi(xi,yi):xi=Risinyi=Ricos=arctan(ci/c0)proes4(0=27,R0=100mm)Fig14Relationshipbetweenassembleangleandcontactlengthofhyperbolarollshape(0=27,R0=100mm)4,r0=0,R0=100,0=27Z=400mm,r1,r1,MaxL1r140mm,1,4[3]131)(2)Ri=F(Zi),12)r1,r1r0,r=r0-r1,;,r1,1111,1996;(1):39411211:,1983;44544713A1M;11:,1979,179181141,41:,1984;191391,196291111017612