Ukuthelekisa ukusebenza phakathi kwe-servo motor kunye ne-stepper motor

Njengenkqubo yokulawula i-loop evulekileyo, i-stepper motor inobudlelwane obubalulekileyo kunye netekhnoloji yanamhlanje yolawulo lwedijithali.Kule nkqubo yangoku yolawulo lwedijithali yasekhaya, i-stepper motor isetyenziswa kakhulu.Ngokubonakala kwenkqubo epheleleyo yedijithali ye-AC servo, i-AC servo motor isetyenziswa ngakumbi kwinkqubo yolawulo lwedijithali.Ukuze uziqhelanise nendlela yophuhliso yolawulo lwedijithali, uninzi lweenkqubo zolawulo lwentshukumo zisebenzisa i-stepper motor okanye i-AC servo motor epheleleyo njengemoto elawulayo.Nangona zifana kwindlela yokulawula (i-pulse train kunye nesignali yesalathiso), zihluke kakhulu ekusebenzeni kunye nokusetyenziswa.Ukusebenza kwezi zibini kuthelekiswa.

Okokuqala, Ukuchaneka kokulawula okwahlukileyo

I-Angle yokunyathela yesigaba ezibini se-hybrid step motor ngokubanzi yi-1.8 ° kunye ne-0.9 °, kunye ne-Angle yokunyathela yesigaba sesihlanu se-hybrid steping motor ngokubanzi yi-0.72 ° kunye ne-0.36 °.Kukwakho ezinye iinjini zokunyathela ezikumgangatho ophezulu ngokwahlulahlula i-Angle yenyathelo elingasemva ukuba ibe ncinane.Umzekelo, inyathelo Angle yesigaba ezibini hybrid ukunyathela motor eveliswe NEWKYE inokumiselwa 1.8 °, 0.9 °, 0.72 °, 0.36 °, 0.18 °, 0.09 °, 0.072 ° kunye 0.036 ° ngekhowudi yokucofa iswitshi, leyo iyahambelana inyathelo Angle yesigaba ezibini kunye nesigaba ezintlanu hybrid ukunyathela motor.

Ukuchaneka kolawulo lwe-ac servo motor iqinisekiswa yi-encoder ejikelezayo ngasemva kwe-motor shaft.Ukuthatha i-NEWKYE epheleleyo yedijithali ye-AC servo motor njengomzekelo, kwi-motor ene-encoder yomgca we-2500 esemgangathweni, i-pulse elingana ne-360 ° / 8000 = 0.045 ° ngenxa yokusetyenziswa kweteknoloji ye-quadruple frequency ngaphakathi komqhubi.Kwimoto ene-17-bit encoder, umqhubi ufumana i-131072 pulse motors kwithuba elinye, oko kukuthi, ipulse yayo ilingana ne-360 °/131072=0.0027466 °, eyi-1/655 yepulse elingana ne-stepping motor ene- inyathelo Engile ye-1.8 °.

Okwesibini, iimpawu ze-frequency ephantsi zihlukile

Ngesantya esiphantsi, i-stepper motor idla ngokushukunyiswa kwi-low-frequency vibration.I-vibration frequency ihambelana nemeko yomthwalo kunye nokusebenza komqhubi.Ngokuqhelekileyo kucingwa ukuba i-vibration frequency sisiqingatha se-no-load-off frequency ye-motor.Isenzeko se-low-frequency vibration egqitywe ngumgaqo wokusebenza we-stepper motor ayithandeki kakhulu ekusebenzeni okuqhelekileyo komtshini.Xa i-stepper motor isebenza ngesantya esiphantsi, itekhnoloji yokudambisa kufuneka isetyenziswe ngokubanzi ukoyisa isenzeko sokungcangcazela okuphantsi, njengokongeza isidambisi kwimoto, okanye umqhubi ekusebenziseni itekhnoloji yokwahlulahlula.

I-AC servo motor ibaleka kakuhle kwaye ayingcangcazeli nakwizantya eziphantsi.Inkqubo ye-Ac servo ene-resonance suppression function, inokugubungela ukungabikho kokuqina komatshini, kwaye inkqubo inomsebenzi wokuhlalutya rhoqo (FFT), inokubona indawo yomatshini wokungcangcazela, kulula ukuyilungisa inkqubo.

Okwesithathu, uphawu lomzuzwana lwahlukile

I-torque yemveliso ye-stepper motor iyancipha ngokunyuka kwesantya, kwaye iya kuhla ngokukhawuleza kwisantya esiphezulu, ngoko ke isantya esiphezulu sokusebenza kwayo sihlala si-300 ~ 600RPM.I-Ac servo motor iyimveliso yetorque ethe gqolo, oko kukuthi, inokukhupha itorque ereyithiweyo ngaphakathi kwesantya esilinganiselweyo (ngokubanzi i-2000RPM okanye i-3000RPM), kunye nokuphuma kwamandla rhoqo ngaphezu kwesantya esilinganiselweyo.

Okwesine, umthamo wokugcwala wahlukile

I-Stepper motor ngokubanzi ayinaso umthamo ogqithisiweyo.I-Ac servo motor inomthamo owomeleleyo wokugcwala.Ukuthatha inkqubo ye-servo ye-Sanyo AC njengomzekelo, inamandla okugqithisa isantya kunye ne-torque.I-torque ephezulu ngamaxesha amabini ukuya kwamathathu e-torque elinganisiweyo kwaye ingasetyenziselwa ukunqoba i-inertial torque yomthwalo ongenayo ekuqaleni.Ngenxa yokuba i-motor yokunyathela ayinaso umthamo onjalo, ukuze woyise lo mzuzu we-inertia ekukhetheni, kudla ngokufuneka ukuba ukhethe i-motor nge-torque enkulu, kwaye umatshini awufuni i-torque enkulu ngexesha lokusebenza okuqhelekileyo, ngoko ke kwenzeka inkunkuma torque.

Okwesihlanu, Ukwenziwa komsebenzi okwahlukileyo

I-motor stepper ilawulwa yi-open-loop control.Ukuba i-frequency yokuqala iphezulu kakhulu okanye umthwalo mkhulu kakhulu, kulula ukulahlekelwa yinyathelo okanye i-stall;ukuba isantya siphezulu kakhulu, kulula ukudubuleka xa uyeka.Ngoko ke, ukwenzela ukuba kuqinisekiswe ukuchaneka kokulawula, ingxaki yokunyuka kwesantya kunye nokuwa kwesantya kufuneka iphathwe kakuhle.Inkqubo ye-Ac servo drive lulawulo oluvaliweyo.Umqhubi unokusampula ngokuthe ngqo imiqondiso yengxelo ye-encoder yemoto.Inxalenye yangaphakathi ineringi yendawo kunye nesantya somsesane.

Okwesithandathu, Ukusebenza kwempendulo yesantya eyahlukeneyo

Kuthatha i-200 ~ 400 millisecond kwi-stepper motor ukukhawulezisa ukusuka ekuphumleni ukuya kwisantya sokusebenza (ngokubanzi amakhulu e-revolutions ngomzuzu).Ukusebenza okukhawulezileyo kwenkqubo ye-AC servo kulungile.Ukuthatha i-NEWKYE 400W AC servo motor njengomzekelo, kuthatha kuphela i-millisecond ezimbalwa ukukhawulezisa ukusuka ekuphumleni ukuya kwisantya esilinganiselwe se-3000RPM, esinokusetyenziswa kwiimeko zokulawula ezifuna ukuqala ngokukhawuleza kunye nokuyeka.

Ukushwankathela, inkqubo ye-AC servo ingaphezulu kune-stepper motor kwimiba emininzi yokusebenza.Nangona kunjalo, i-stepper motor ihlala isetyenziselwa ukwenza i-motor kwezinye iimeko ezingabalulekanga kangako.Ngoko ke, kwinkqubo yoyilo lwenkqubo yokulawula ukuqwalasela iimfuno zolawulo, iindleko kunye nezinye izinto, khetha i-motor yokulawula efanelekileyo.


Ixesha lokuposa: Dec-02-2020