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伺服电机选型方法简述,附选型计算公式案例
发布时间:2021-12-11 14:20
GUANYUSIFUDIANJIDEXUANXINGSHIJIXIESHEJIDEZHONGYAOHUANJIE,RUGUOXUANDEXINGHAOHESHIJIYAOQIUXIANGCHAJIAODA,BIRANHUIDAILAIDADEMAFANHEBUBIYAODEJINGJISUNSHI,DIANJIXUANXINGYEYOUXIANGYINGDEGUILVHEGONGSHIKEXUNDE。ZUICHANGJIANDEJIXIECHUANDONGJIEGOUYOUTONGBUDAI,CHILUNCHITIAO,SIGANDENG。XUYAOJISUANDECANSHUYOUDIANJIZHUANSU,DIANJILIJU,ZHUANDONGGUANLIANG。
同步带传动 :
DIANJIEDINGZHUANSUN=(v/2πr)*i
QIDONGSHUNJIANXUYAODELALIF=(M+m1-m2)a+δ(M+m1-m2)g(SHUIPING)
F=(M+m1-m2)a+δ(M+m1-m2)g+(M+m1- m2)g(CHUIZHI)
TNIUJU=F*R
TDIANJI=TNIUJU/JIXIEJIANSUBIn
DIANJIGONGLV=N*TDIANJI/10
QIDONGGUANLIANGJ=1/2mR2
DIANJIGUANLIANGJDIANJI=J/JIANSUBIDEPINGFANGn2/GUANLIANGBIi
JUGELIZI:
垂直的同步带拉升物体。
A:TONGBUDAILUNZHIJINGD=100mm、TISHENGJIZAIHUOTAIZONGZHONGM=30kg、HUOWUZONGZHONGm1=10kg,PEIZHONGm2=25kg,TISHENGGUNDONGMOCAXISHUQUδ=0.03、JIASUDUa=2m/S2、TISHENGSUDUv=3m/s。JIANSUJIJIANSUBIi=5。
(1)DIANJIEDINGZHUANSU:
n=(v/2πr)*i
=3/(2*3.14*0.05)*5*60=2866r/min
(2)QIDONGSHUNJIANXUYAODELALI:
F=(M+m1-m2)a+δ(M+m1-m2)g+(M+m1-m2)g=(30+10-25)*2+0.03(30+10-25)*10+(30+10-25)*10=184.5N
TNIUJU=F*R=184.5*0.05=9.225Nm
ZHESUANDIANJIXUYAONIUJU
T1=9.225Nm/5=1.85Nm
ZHESUANDIANJIGONGLV
P1=2866*1.85/10=0.5KW
(3)QIDONGGUANLIANG
J=1/2mR2
=0.5*(10+30+25)*0.0025=0.08125kgm2
ZHESUANDIANJIXUYAOGUANLIANG
J1=0.08125/25=0.00325kgm2
GENJUJINGYANZHIQUGUANLIANGBI=10,ZESHIJIJDIAN=J1/10=0.000325kgm2
JINGJISUAN:DIANJIZHISHAOMANZUYIXIATIAOJIAN
XIAMIANKANXIA1.2QIANWA3000RPM,4NIUMIDEDIANJIDEGUANLIANGSHI2.98*10-4 kgm2
SUOYIKEYIXUANZE80ST-M04030DEDIANJI。
CHILUNCHITIAOCHUANDONG
YINWEICHILUNCHITIAOCHUANDIDONGLIDA、XIAOCHILUNCHUANDONGDETEDIAN,CHILUNCHUANDONGYONGLAICHUANDIRENYILIANGZHOUJIANDEYUNDONGHEDONGLI,QIYUANZHOUSUDUKEDADAO300m/s,CHUANDIGONGLVKEDA105KW,CHILUNZHIJINGKECONGBUDAO1mm.,SHOUMINGZHANG,GONGZUOPINGWEN,KEKAOXINGGAO,NENGBAOZHENGHENGDINGDECHUANDONGBI,NENGCHUANDIRENYIJIAJIAOLIANGZHOUJIANDEYUNDONG。BUGUANSHIZHICHITIAOHAISHIJINGDUHEXIAOLVGENGGAODEXIECHITIAODOUZAIGONGYEJIXIESHEBEIZHONGGUANGFANDEYINGYONG。
GUANYUCHITIAOCHILUNHUANSUANGONGSHI:
DIANJIZHUANSUN(rpm),ZHIXIANSUDUV(mm/s) JIXIEJIANSUBIi
N=V*60/1000*S
DIANJILIJUJISUAN:
FUZAIZHONGLIANGM(kg),SUDUV(mm/s),JIASUSHIJIANT(S),MOCAXISHUδ,CHILUNBANJINGR
JIASUDUa=v/t(m/s2)
CHIPAIQIEXIANGLIF1=Mgδ+Ma
CHILUNLIJUF2=F1*R/1000
DIANJILIJUFDIANJI=F2/i
FUZAIGUANLIANGJISUAN
w-GONGJIANJIGONGZUOTAIZHONGLIANG(kgf)
R-CHILUNFENDUYUANBANJING(cm);
ZHESUANDAOZHEIBIANDIANJIZHEIBIANDEGUANLIANGJDIANJI=J/i2=WR2/gi2
JUGEJIANDANDEELIZI;
FUZAIZHONG400KG,SUDUYAOQIU500mm/S,JIASUDU2m/s2CHITIAO3M,CHILUN25,CHILUNWAIJING85,MOCAXISHU0.15,XUANXINGJIANSUJIHESIFUDIANJIDEXINGHAO。
XIANKANSUDU:
S=CHISHU*MOSHU*3.14/0.9424763
=25*3*3.14/0.9424763=250mm
CHILUNSUDUN1 =V*60/1000*S=500*60/1000*S
=500mm*60s/1000*0.250m=120rpm
DIANJIXUYAOZHUANSUWEIN=N1*i
CHIPAIQIEXIANGLI
F1=Mgδ+Ma=400*10*0.15+400*2=1400
CHILUNLIJU
F2=F1*R/1000=1400n*47mm/1000=66nm
FDIANJI=F2/i
GUANLIANG:
JDIANJI=J/i2=WR2/gi2=400*0.0472/10*202=2.2*10-4 kgm2
ZANSHIXUAN20BIJIANSUJI,ZEDIANJIZHUANSUN=20*120=2400rpm
DIANJILIJU:FDIANJI=66/20=3.3nm
GENJUZHEIGEDIANJIDECANSHU XUANZEJIANSUJIYONG80FALAN,20BIDEXINGXINGJIANSUJI。
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