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20085365MACHINETOOL&HYDRAULICSMay2008Vol136No15:2007-08-14:(1957)),,,,,11,530:13385288202,13807158661,E-mai:lfanchaoy@i1261com步进电机的选型与计算范超毅,范巍(江汉大学机电工程学院,武汉430056):,:;;;;:TG501:A:1001-3881(2008)5-310-4SelectionandCalculationofSteppingMotorFANChaoy,iFANWei(SchoolofElectromechanics,JianghanUniversity,Wuhan430056,China)Abstract:SteppingmotorhasbeenappliedwidelyinCNCreconstructionofmachinetools,computersperipheralequipmentsandsomesituationswhichneedopen-ringcontrolling.Correctselectingofsteppingmotoristhepreconditionofcorrectusingit.Thebasiccharacteristicsandapplicationfeaturesofsteppingmotorweresummarized,themethodsofsteppingmotorselectinganditscalculationswereintroduced.Keywords:CNCmachinetoo;lSteppingmotor;Modelselecting;Design;CNCreconstruction02070,70,80,,,,,,,,,,1111步进电机的特点,,/0,,;,,(100%),,:(1),,()(2),,(3),(4),,,(5)Am,z,k(k=/,/0,/0),:A=360bmzk(1):,m=3,k=1,,m=3,k=2,A019b/118b0175b/115b0136b/0172b,,/0,,,,,,,,,,,;,,,,;,,112步进电机的使用特性(1),,,,,,?10c~?30c,?2c~?5c(2)(3),()190BF002,,,,(4),290BF002,,,,,2211选择步进电机的几个原则,:,;,;,,:(1),,,,(2),,,,,(3),,(4)¹,;,,,,01005~0101mmº:i=AL0360bDp(2):A,(b);L0,mm;Dp,mm,AL0Dp,(2)i,i1,,,i,,#311#5:212计算折算到电机轴上的空载启动力矩和切削时的负载力矩(1),;;¹Tc(N#m)Tc=FaL2PGi(3):Fa,,N;L,,m;G,G=0190ºTu(N#m)Tu=Fa0L2PGi(4):Fa0,(),N»Tf(N#m)Tf=FpL02PGi(1-G20)(5):Fp,N;L0,m;G0,G=0198¼T(N#m)()TKJ=Tu+Tf(6)()TGJ=Tc+Tf(7)(2)Tap(N#m)Tap=2@918Pnmax60@980ta(Jm+Jd)(8):nmax,r/min;Jm,kg#cm2;Jd,kg#cm2;ta,s(3)Ta,,Tq,,Tt¹Tq(N#m)Tq=Tap+TKJ=Tap+Tu+Tf(9)ºTt(N#m)Tt=Tat+TGJ=Tat+Tc+Tf(10)213确定步进电机最大静力矩最大启动频率最大运行频率(1)TsTs,Tq1,Ts11TqTs1334455663648510612Tq/Ts101501866017070170701809019510186601866,Tt,,Ts2:Ts2=Tt013~015(11),Ts1Ts2Ts,Ts\max{Ts1,Ts2}(12)(2)Tq,Tq,,,Tq,-(,fy),fq:fq[fy:¹(9)Tq,-,fyfq,,/0,/,ºfq,0~fmax,,fq=fmax(fmax)(3),,,,,#312#36:¹vmax(m/min)Dp(mm),fmax(Hz):fmax=1000vmax60Dp(13)º(6)()TKJ,-,,fyKJfmaxfyKJ:fmax[fyKJ,,,,:¹vGmax(m/min)Dp(mm),fGmax(Hz):fGmax=1000vGmax60Dp(14)º(7)TGJ,-,,fyGJfGmaxfyGJ:fGmax[fyGJ,3,200mm,1200mm/min,250mm/min,61122kgDp01005mm,L0=6mm,715kW,400mm,85r/min,22i=5A=115b,Dp=01005mmL0=6mm(2)Tc=0153N#m,Tu=01088N#mTf=01021N#m,TKJ=0111N#mTGJ=0144N#mFa=2370134N,Fu0=390NFp=790111N,L=L0=6mmG=0185,G0=0194(3),(4)(5),(6)(7)Tq=7185N#m(9)Ts1=8125N#m,Ts2=1147N#mTs=8125N#m:Ts=81259131130BF001,:5,0175b/115b,9131N#m,416kg#cm2,(10)(11)(12)fq=2800Hz,fq[fy3000Hz,:fy=3000Hz-fmax=4000Hz,16000Hz,:fyKJ=16000Hz(13)-fGJmax=833Hz,16000Hz(14)-4,,,,,(),,,,(下转第324页)#313#5:,,h=360bA[x-x1]x,x111212,,:hi=Eni=1hn11213,,,,,:Pi=360bA[(h2-R2)-(h1-R1)]2(1)(),(2)()(3)(4))(6)(4)0,0(5)0b,0(6):360b3,33,,=11[J]1,2003,14(1):9-121=21[M]1:,20031=31[J]1,2003,14(9):737-7401=41[M]1:,1994:79-831=51[M]1:,1985:66-701=61[J]1,2006,1:50-511(上接第313页)=11[M]1:,20031=21[M]1:,20061=3,,1[M]1:,20071=4,,1[J]1,2001(3)1=5,1[J]1,2005(12)1#324#36