Servo motor ulwazi isifinyezo

Igama elithi servo livela egameni lesiGreki elisho isigqila."I-Servo motor" ingaqondwa njengemoto elalela ngokuphelele umyalo wesignali yokulawula.Lapho isignali yokulawula ithunyelwa, i-rotor iyagingqika ngokushesha.Lapho isignali yokulawula inyamalala, I-rotor ingayeka ukusebenza ngokushesha.

I-Servo motor iyi-motor encane esetshenziswa njengento ephezulu kudivayisi yokulawula okuzenzakalelayo. Umsebenzi wawo ukuguqula amasignali kagesi abe yi-angular displacement noma i-angular velocity ye-shaft ejikelezayo.

I-Servo motor ihlukaniswe yaba i-ac servo ne-dc servo izigaba ezimbili

Isakhiwo esiyisisekelo se-ac servo motor sifana ne-ac induction motor.Kunamawindi ama-excitation amabili e-Wf kanye nama-winding okulawula i-WcoWf ene-displacement yesikhala sesigaba esingu-90° ku-stator, exhunywe ne-voltage ye-ac engashintshi. Inhloso yokulawula ukusebenza kwemoto ifinyelelwa ngokusebenzisa ukuguqulwa kwe-ac voltage noma isigaba esisetshenziswa ku-Wc.Ac servo motor inezici zokusebenza okushelelayo, ukulawula okuhle, ukuphendula okusheshayo, ukushesha okuphezulu kanye nenkomba eqinile engaqondile yezimpawu zemishini nezici zokulungisa ( ngaphansi kuka-10% ~ 15% nangaphansi kuka-15% ~ 25%, ngokulandelana).

Isakhiwo esiyisisekelo se-dc servo motor siyefana naleso se-dc motor.Isivinini se-Motor n = E/K1j = (Ua - IaRa)/K1j, uhlobo luka-E lwamandla e-armature counter electromotive, i-K ihlala njalo, j nge-pole flux, Ua , Ia ye-armature voltage kanye ne-armature current, i-Ra njengokumelana nezikhali, shintsha i-Ua noma i-phi, ingakwazi ukulawula isivinini semicabango kagesi ye-dc servo, kodwa ngokuvamile isebenzisa indlela yokulawula i-armature voltage, umcabango kagesi unomphela uzibuthe i-dc servo, i-excitation winding ithathelwa indawo yizibuthe unomphela, i-magnetic flux phi ihlala njalo.I-Dc servo motor inokulawula okuhle komugqa kanye nokusabela kwesikhathi esisheshayo.

Izinzuzo kanye nokubi kwe-dc servo motor

Izinzuzo: ukulawulwa kwejubane okunembile, izici zejubane le-torque zinzima kakhulu, isimiso sokulawula esilula, kulula ukusisebenzisa, intengo eshibhile.

Ukungalungi: ukuguqulwa kwebhulashi, umkhawulo wejubane, ukumelana okwengeziwe, izinhlayiya eziqhumayo (indawo engenazo uthuli neziqhumane ayifanele)

Izinzuzo kanye nokubi kwe-ac servo motor

Amandla: izici zokulawula isivinini ezinhle, kulo lonke uhla lwesivinini zingakwazi ukubona ukulawula okushelelayo, cishe akukho-oscillation, ngaphezu kuka-90% wekhono eliphezulu, umkhuhlane omncane, ukulawulwa kwesivinini esikhulu, ukunemba kokulawula isikhundla esiphezulu (kuye ngokuthi i-encoder), ikalwe. indawo yokusebenza, ingabona i-torque engaguquki, umzuzu we-inertia uphansi, umsindo uphansi, akukho ukugqokwa kwebhulashi, ukugcinwa kwamahhala (okungathuli, indawo eqhumayo)
Ukungalungi: ukulawula kuyinkimbinkimbi kakhulu, imingcele yomshayeli idinga ukulungiswa endaweni ukuze inqume imingcele ye-PID, futhi izintambo ezengeziwe ziyadingeka.

I-Dc servo motor ihlukaniswe ngebhulashi ne-brushless motor.

Izindleko ze-brush motor ziphansi, isakhiwo esilula, i-torque yokuqala inkulu, ijubane lejubane libanzi, ukulawula kulula, kudinga ukunakekelwa, kodwa ukugcina inzuzo (ye-carbon brush), ukukhiqizwa kokuphazanyiswa kwe-electromagnetic, ukusetshenziswa kwemvelo kunezidingo. , ngokuvamile esetshenziselwa imboni evamile ezwelayo nemicimbi yomphakathi.

I-Brushless motor ukukhanya kwesisindo esincane, impendulo enkulu ephumayo ngokushesha, inertia encane enesivinini esikhulu, i-torque ayinyakazi ukugingqika ngokushelela, ukulawula okuyinkimbinkimbi, okuhlakaniphile, ukushintshashintsha kwesigaba se-elekthronikhi kuyaguquguquka, igagasi lesikwele noma i-sine wave phase exchange, ukugcinwa kwemoto mahhala, ukonga amandla okusebenzayo, i-electromagnetic imisebe emincane, izinga lokushisa eliphansi likhuphuka impilo ende, lilungele izindawo ezihlukahlukene.
I-Ac servo motor nayo iyi-brushless motor, ihlukaniswe yaba yi-synchronous kanye ne-asynchronous motor, isilawuli sokunyakaza samanje sivame ukusetshenziswa nge-synchronous motor, ububanzi bayo bamandla, amandla angaba makhulu kakhulu, inertia enkulu, isivinini esiphezulu siphansi, isivinini ngokukhula kwamandla kanye nokwehla okufanayo, kulungele izikhathi zokusebenza ezishelelayo ezinesivinini esiphansi

Ingaphakathi le-servo motor rotor liwuzibuthe ongunaphakade, isigaba sesithathu sokulawula idrayivu kagesi i-U/V/W yakha inkambu ye-electromagnetic, ngaphansi kwesenzo se-rotor eginqikayo kulo mkhakha, ngesikhathi esifanayo, injini enesiginali yempendulo yesishumeki idrayivu, inani lempendulo uma liqhathaniswa nethagethi, ukulungisa i-Angle yerotor rolling, ukunemba kwe-servo motor kunqunywa ukunemba kwesishumeki (inombolo yomugqa).

Iyini i-servo motor? Zingaki izinhlobo ezikhona? Yiziphi izici zomsebenzi?

Impendulo: Umbono kagesi we-servo owaziwa nangokuthi umbono kagesi ophezulu, ohlelweni lokulawula oluzenzakalelayo olusetshenziswa njengesici esiphezulu, isignali kagesi eyamukelwe kumbono kagesi we-axis angular displacement noma ukuphuma kwesivinini se-angular.

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