Kev xaiv ntawm ib lub cav qev thiab cov nqes hlau yog ib qho kev sib tw nrog kev sib luag ntawm ntau qhov qauv. Kev xav txog tus nqi, lub zog, kev ceev, acceleration, thiab kev tsav tsheb ua txhua tsav txhua txoj hauv kev xaiv qhov zoo tshaj plaws lub cev rau koj daim ntawv thov.
Cov Kev Txawj Sib Ple Nyob ntawm Stepper thiab Servo Motors
Stepper thiab servo motors sib txawv hauv ob txoj hauv kev tseem ceeb, hauv lawv qhov kev tsim kho thiab seb lawv tswj hwm. Stepper motors muaj ntau tus ncej, cov hlau sib nqus ntawm sab qaum teb thiab sab qab teb ncej tsim los ntawm ib qho chaw ruaj khov lossis hluav taws xob tam sim no, feem ntau 50 mus 100 ncej. Sib piv hauv, servo motors muaj ob peb ncej, feem ntau 4 mus rau 12 hauv tag nrho. Txhua tus ncej muaj ib qho taw qhia me nyuam lub cev rau lub cav xaib. Qhov ntau dua ntawm cov ncej tso cai rau lub cav ntiv taw xoo kom txav kom ncaj thiab sib txuas ntawm txhua tus ncej thiab tso cai rau tus neeg nqa khoom tsis ua haujlwm los ntawm kev siv ntau lub tswv yim. Servo motors feem ntau yuav tsum muaj ib qhov chaw cim lus qhia kom khiav ntawm txoj haujlwm ntawm lub taub hau, tshwj xeeb tshaj yog yog tias yuav tsum tau muaj kev taw kom meej.
Tsav tsheb kauj vab mus rau txoj hauj lwm tseeb yog yooj yim dua li tsav tsheb ib lub cav qev. Nrog lub cav ntiv tes ua theem, ib tus neeg tsav tsheb yuav txav mus rau hauv lub kauj ruam ntawm ib kauj ruam, ntawm ib txoj kab mus rau ib sab. Vim tias cov kauj ruam loj ntawm cov kauj ruam uas tau muab tso rau ntawm ib qho kev hloov ntawm kev sib hloov, tsiv mus rau txoj hauj lwm tseem ceeb tsuas yog qhov teeb meem ntawm xa cov nab npawb ntawm cov pulses. Qhov sib txawv ntawm servo motors nyeem qhov txawv ntawm qhov tam sim no ntawm qhov chaw khiav dej num thiab txoj hauj lwm lawv tau txib kom thiab qhov tam sim no yuav tsum tau tsiv mus rau txoj hauj lwm kom yog. Nrog hnub no lub digital electronics, stepper motors yog cov yooj yim dua los tswj dua servo motors.
Stepper Advantages
Stepper motors muaj ntau qhov zoo tshaj qhov servo motors tshaj li cov npoo ntau thiab tswj kev tsav tsheb yooj yim dua. Tus qauv tsim ntawm qhov kev ua tiav ntawm lub cav muaj qhov tso rau qhov tsis muaj tus xav tau rau lub cav. Lub zog ntawm ib lub kauj ruam khiav hauv qis qis dua yog qhov siab tshaj qhov servo lub cev ntawm tus loj tib yam. Ib qho ntawm qhov kev ua zoo tshaj ntawm stepper motors yog lawv tus nqi pheej yig thiab txaus.
Servo Advantages
Rau cov ntawv thov kev kub ceev thiab siab torque ntxiv, servo motors ci. Stepper motors ncov siab txog ntawm 2,000 RPM, thaum servo motors muaj ntau zaus sai dua. Servo motors tseem tuav lawv cov teeb taw kev lag luam ntawm kev kub ceev, mus txog rau 90% ntawm cov torque rated yog muaj los ntawm ib tug servo ntawm kev kub ceev. Servo motors kuj yog txuag ntau tshaj li cov cav hlau nrog kev ua haujlwm ntawm 80-90%. Ib tug servo lub cev muaj peev xwm npaj tau roughly ob zaug lawv cov qhab nia them luv luv rau lub sij hawm luv luv, muab qhov zoo ntawm qhov peev xwm los kos los ntawm thaum xav tau. Tsis tas li ntawd, servo motors yog heev, muaj nyob rau hauv AC thiab DC tsav, thiab tsis vibrate los yog txom nyem ntawm resonance teeb meem.
Stepper kev txwv
Rau txhua qhov ntawm lawv cov txiaj ntsig, stepper motors muaj ob peb cov kev txwv uas yuav ua rau kev siv tseem ceeb thiab kev lag luam teeb meem nyob ntawm koj daim ntawv thov. Stepper motors tsis muaj lub hwj chim tshwj xeeb. Qhov tseeb, stepper motors poob qhov tseem ceeb npaum li cas ntawm lawv lub zog thaum lawv mus cuag lawv qhov siab tshaj plaws tsav tsheb. Ib tug poob ntawm 80% ntawm cov torque rated ntawm 90% ntawm qhov siab tshaj plaws ceev yog raug. Stepper motors kuj tsis zoo li servo motors hauv accelerating ib load. Sim ua kom yooj yim rau kev ceev nrawm ntawm qhov chaw uas tus kauj ruam tsis tuaj yeem tsim kom muaj lub zog txaus kom txav mus rau kauj ruam tom ntej ua ntej tsav tsheb tom ntej yuav ua rau kauj ruam hla thiab poob hauv txoj haujlwm. Yog hais tias qhov chaw tseem ceeb yog qhov tseem ceeb, lub nkoj ntawm lub cav yuav tsum tsis txhob tshaj nws lub tawb los yog tus theem yuav tsum tau ua ke nrog ib qho chaw cim encoder kom muaj tseeb qhov tseeb. Stepper motors kuj raug kev txom nyem los ntawm teeb meem ntawm kev teeb tsa thiab resonance. Nyob ntawm tej qhov ceev nrooj, ib feem ntawm cov lej load, ib qho kev ua tiav lub cav yuav sau tau resonance thiab tsis tuaj yeem tsav lub nkoj.
Qhov no ua rau cov kauj ruam hla, cov hlua ntawm cov hlua, cov kev vibration thiab lub suab nrov.
Servo Limitations
Servo motors muaj peev xwm ua kom muaj hwj huam ntau tshaj li qhov kev ua qaum, tiam sis yuav tsum tau muaj ntau txoj kev tsav tsheb thiab cov tswv yim txhawb rau qhov tseeb. Servo motors kuj tseem kim tshaj li cov cav stepper thiab feem ntau nyuab nyuab dua. Servo motors feem ntau yuav tsum muaj cov thawv ntawv, tshwj xeeb tshaj yog rau cov haujlwm qis dua. Qhov yuav tsum tau ua rau lub iav thiab txoj haujlwm ntawm tus neeg ua haujlwm ua rau cov kev pabcuam qog ua haujlwm tsis zoo thiab ua kom muaj kev tu vaj tse kom zoo dua qub. Rau sab saum toj nws tag nrho, servo motors yog kim kim tshaj li stepper motors ua ntej ntxiv rau tus nqi ntawm ib txoj hauj lwm encoder.
Txoj kev xaus
Xaiv lub tshuab zoo tshaj plaws rau koj daim ntawv thov nyob ntawm ob peb yam kev tsim cov qauv rau koj lub cev nrog rau cov nqi, qhov chaw yuav tsum yog qhov yuav tsum tau, qhov yuav tsum tau muaj zog, tsav lub hwj huam, thiab kev tsom xam kom ua. Zuag qhia tag nrho, servo motors yog qhov zoo tshaj plaws rau kev kub ceev, cov kev siv torque siab thaum cov cav cav theem tau zoo dua rau kev sib zog sab nrauv, kev tuav lub siab ceev ceev.