Iingxaki ezininzi ngeemoto ezincinci ze-stepper

1,Zithini iimpawu ze-bipolar kunye ne-unipolar zemoto?

IiMoto zeBipolar:

Iimoto zethu ze-bipolar ngokubanzi zinezigaba ezibini kuphela, isigaba A kunye nesigaba B, kwaye isigaba ngasinye sineengcingo ezimbini eziphumayo, eziziingcingo ezahlulwe ngokwahlukeneyo. Akukho nxibelelwano phakathi kwezi zigaba zimbini. Iimoto ze-bipolar zineengcingo ezine eziphumayo.

Iimoto ezi-Unipolar:

Iimoto zethu ze-unipolar ngokubanzi zinezigaba ezine. Ngokusekelwe kwizigaba ezibini zeemoto ze-bipolar, kongezwa imigca emibini efanayo.

Ukuba iingcingo eziqhelekileyo zidibene kunye, iingcingo eziphumayo ziingcingo ezi-5.

Ukuba iingcingo eziqhelekileyo aziqhagamshelwanga kunye, iingcingo eziphumayo ziingcingo ezi-6.

Injini ye-unipolar inemigca emi-5 okanye emi-6 ephumayo.

2,Ithini i-frequency yokusebenza ephezulu/i-frequency ephezulu yokutsalwa？

Ubuninzi bokusebenza rhoqo/Ubuninzi bokutsalwa ngaphandle rhoqo

I-frequency ephezulu yokusebenza, ekwaziwa ngokuba yi-frequency ephezulu yokutshixa / i-frequency ephezulu yokutsalwa, yi-frequency ephezulu apho imoto inokujikeleza khona phantsi kwefomu ethile yokuqhuba, i-voltage kunye ne-current elinganisiweyo, ngaphandle kokongeza umthwalo.

Ngenxa yokungasebenzi kakuhle kwerotor, i-motor ejikelezayo ifuna i-torque encinci ukuze ijikeleze xa ithelekiswa ne-motor engashukumiyo, ngoko ke i-frequency ephezulu yokusebenza iya kuba nkulu kune-frequency ephezulu yokuziqala.

3,Zithini ii-torque zokutsala kunye nee-torque zokutsala ze-stepper motor?

I-torque yokutsala

I-torque yokutsala yeyona torque iphezulu enokufikelelwa ngaphandle kokulahlekelwa ngamanyathelo. Ifikelela kuyo

ubuninzi kwisantya esisezantsi okanye kwisantya esiphantsi, kwaye buyehla njengoko isantya sisanda. Ukuba umthwalo kwi

Injini yokunyathela ngexesha lokujikeleza iyanda ngaphaya kwe-torque yokutsala, imoto iya kuwa ngaphandle kwenyathelo

kwaye ukusebenza ngokuchanekileyo akuyi kwenzeka.

I-torque yokutsala

I-torque yokutsala yeyona torque iphezulu apho injini inokuqala ukujikeleza khona rhoqo ukusuka

imeko emileyo. I-stepper ayinakuqala ukujikeleza nge-torque yomthwalo edlula i-torque yokutsala.

I-torque yokutsala incinci kune-torque yokutsala, ngenxa yokungasebenzi kakuhle kwe-rotor yemoto.

4,Yintoni i-torque yokuzibeka ngokwayo ye-stepper motor?

I-Detent torque yi-torque ekhoyo kwimeko yokunganamandla ngenxa yokusebenzisana kwe-permanent

iimagnethi kunye namazinyo e-stator. Ukuphazamiseka okubonakalayo okanye ukugoba kunokuvakala ngokujikelezisa injini nge

ngesandla. Ngokubanzi, i-stepper motor iya kulahlekelwa kukuhambelana xa i-torque yokutsala idlulile ngenxa

Iimoto zihlala zikhethwa kwaye zivavanywa kusetyenziswa amaxabiso e-torque aphumayo angaphezulu kwe-

iimfuno zesicelo sokuthintela ukubalwa okulahlekileyo okanye iindawo zokuthengisa iimoto.

5,Ziziphi iindlela zokuqhuba zeemoto ze-stepper?

Ukuqhuba nge-wave / nge-one phase-on kusebenza nge-one phase kuphela

ivuliwe ngexesha, kuboniswe kumfanekiso kwicala lasekunene. Xa i-drive inika amandla i-pole A (i-south pole) eboniswe ngombala oluhlaza, itsala i-north pole ye-rotor. Emva koko xa i-drive inika amandla i-B kwaye icima u-A, i-rotor ijikeleza ngama-90 ° kwaye oku kuyaqhubeka njengoko i-drive inika amandla i-pole nganye nganye ngexesha.

Ukuqhuba ngezigaba ezi-2-2 kubizwa ngokuba ziizigaba ezibini ngexesha. Ukuba i-drive inika amandla zombini iipali ze-A kunye ne-B njengeepali zasezantsi (eziboniswe ngombala oluhlaza), ngoko ipali yasemantla ye-rotor itsala zombini ngokulinganayo kwaye ihambelana phakathi kwezi zimbini. Njengoko ulandelelwano olunika amandla luqhubeka ngolu hlobo, i-rotor iqhubeka ihambelana phakathi kweepali ezibini. Ukuqhuba ngezigaba ezi-2-2 akufumani sisombululo singcono kune-one-phase on, kodwa ivelisa i-torque engaphezulu. Le yindlela yokuqhuba esiyisebenzisa rhoqo kwiimvavanyo zethu, eyaziwa ngokuba yi-"full step driving".

Ukuqhuba ngesigaba esi-1-2 kubizwa ngegama lomqhubi otshintsha phakathi kwesigaba esi-1 kunye nesigaba esi-2 sokuvuselela. Umqhubi unika amandla ipali A, aze anike amandla zombini iipali A kunye no-B, aze anike amandla ipali B, aze anike amandla zombini iipali A kunye no-B, njalo njalo. (Kuboniswe kwicandelo eliluhlaza kwicala lasekunene) Ukuqhuba ngesigaba esi-1-2 kunika isisombululo esincinci sokuhamba. Xa izigaba ezi-2 zinikwe amandla, imoto ine-torque engaphezulu. Nantsi isikhumbuzo: I-torque ripple yingxaki, kuba inokubangela i-resonance kunye ne-vibration. Xa kuthelekiswa nokuqhuba ngesinyathelo esipheleleyo/ukuqhuba ngesigaba esi-2-2, i-engile yesinyathelo se-1-2-phase drive incitshiswa ngesiqingatha kuphela, kwaye kuthatha amanyathelo amabini ukujikeleza umjikelo omnye, ngoko ke ukuqhuba ngesigaba esi-1-2 kukwabizwa ngokuba yi-"half step driving". Ukuqhuba ngesigaba esi-1-2 nako kunokuthathwa njengeyona drive isisiseko yokwahlulahlula.

6，Ungayikhetha njani i-stepper motor efanelekileyo?

Ukuze ufumane ukhetho olufanelekileyo, ezo

imithetho esisiseko yethiyori kufuneka ihlonitshwe:

Umsebenzi wokuqala kukukhetha i-stepper motor efanelekileyo yesicelo.

1. Khetha i-motor ngokusekelwe kwi-torque ephezulu/i-speed point efunekayo kwisicelo (ukhetho olusekelwe kwimeko embi kakhulu)

2. Sebenzisa ubuncinane i-30% yoyilo oluvela kwi-torque epapashweyo vs. i-speed curve (i-drap-out curve).

3. Qinisekisa ukuba isicelo asiyi kuphazanyiswa ziziganeko zangaphandle.