Isifinyezo solwazi lwe-Servo motor

Igama elithi servo livela egameni lesiGreki elisho isigqila. "Imoto ye-Servo" 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-micro-motor esetshenziswa njengesici esiphezulu kudivayisi yokulawula okuzenzakalelayo. Umsebenzi wayo ukuguqula izimpawu zikagesi zibe ukufuduka kwe-angular noma ijubane le-angular lomgodi ojikelezayo.

I-Servo motor ihlukaniswe ngezigaba ezimbili ze-ac servo kanye ne-dc servo

Isakhiwo esiyisisekelo semoto ye-ac servo sifana nemoto yokungenisa i-ac. Kunezinhlobo ezimbili zokujikijela okuvusa inkanuko i-Wf kanye ne-control windings i-WcoWf ene-phase space displacement engu-90° ku-stator, exhunywe ne-ac voltage engaguquki. Inhloso yokulawula ukusebenza kwemoto ifinyelelwa ngokusebenzisa ushintsho lwe-ac voltage noma isigaba esisetshenziswa ku-Wc. Imoto ye-servo ye-Ac inezici zokusebenza okubushelelezi, ukulawula okuhle, impendulo esheshayo, ukuqina okuphezulu kanye nenkomba eqinile ye-nonlinear yezici zemishini kanye nezici zokulungisa (ngaphansi kuka-10% ~ 15% kanye nangaphansi kuka-15% ~ 25%, ngokulandelana).

Isakhiwo esiyisisekelo semoto ye-dc servo sifana nesemoto ye-dc. Isivinini semoto n = E/K1j = (Ua - IaRa)/K1j, uhlobo lwe-E lwamandla e-electromotive aphikisana ne-armature, i-K ihlala njalo, i-j nge-pole flux, i-Ua, i-Ia ye-voltage ye-armature kanye ne-armature current, i-Ra njengokumelana kwe-armature, ukushintsha i-Ua noma i-phi, ingalawula ijubane lemicabango kagesi ye-dc servo, kodwa ngokuvamile isebenzisa indlela yokulawula i-voltage ye-armature, icabanga ngogesi ku-servo ye-magnet ehlala njalo ye-dc, ukugoqa okuvusa inkanuko kuthathelwa indawo yi-magnet ehlala njalo, i-magnetic flux phi ihlala njalo. Imoto ye-servo ye-Dc inokulawulwa okuhle okuqondile kanye nokuphendula kwesikhathi okusheshayo.

Izinzuzo kanye nokungalungi kwe-DC servo motor

Izinzuzo: ukulawula isivinini okunembile, izici zesivinini se-torque zinzima kakhulu, isimiso sokulawula esilula, kulula ukusisebenzisa, intengo ephansi.

Okubi: ukuhlehlisa ibhulashi, ukukhawulelwa kwesivinini, ukumelana okwengeziwe, izinhlayiya ezihudulayo (indawo engenalo uthuli kanye nendawo eqhumayo ayifaneleki)

Izinzuzo kanye nokungalungi kwe-ac servo motor

Amandla: izici ezinhle zokulawula isivinini, kulo lonke ibanga lesivinini ingalawula ngokushelela, cishe akukho ukushukuma, ngaphezu kwama-90% okusebenza kahle okuphezulu, umkhuhlane omncane, ukulawula ngesivinini esiphezulu, ukunemba kokulawula isikhundla ngokunemba okuphezulu (kuye ngokuthi i-encoder), indawo yokusebenza elinganisiwe, ingalawula i-torque engaguquki, umzuzu we-inertia uphansi, umsindo ophansi, akukho ukugqokwa kwebhulashi, ukulungiswa kwamahhala (kwendawo engenalo uthuli, eqhumayo)

Okubi: ukulawula kuyinkimbinkimbi kakhulu, amapharamitha omshayeli adinga ukulungiswa khona lapho ukuze kunqunywe amapharamitha e-PID, futhi kudingeka izintambo ezengeziwe.

Imoto ye-servo ye-Dc ihlukaniswe ngemoto yebhulashi kanye nemoto engenamabhulashi.

Izindleko zemoto yebhulashi ziphansi, isakhiwo esilula, i-torque yokuqala inkulu, ububanzi besivinini bubanzi, ukulawula kulula, isidingo sokunakekela, kodwa kugcinwa inzuzo (yebhulashi yekhabhoni), ukukhiqizwa kokuphazamiseka kwe-electromagnetic, ukusetshenziswa kwemvelo kunezidingo, ngokuvamile kusetshenziselwa izimboni ezivamile ezithinta izindleko kanye nemicimbi yomphakathi.

Injini engenamabhulashi ilula kakhulu, impendulo enkulu yokukhipha ishesha, isivinini esikhulu i-inertia encane, i-torque ayigingqiki kahle, ilawula ngendlela eyinkimbinkimbi, ihlakaniphile, ishintshashintshana ngesigaba se-elekthronikhi, ishintshana ngesigaba samagagasi noma i-sine wave, ayinayo i-motor yokulungisa, igcina amandla kahle, imisebe kagesi incane, ishintshana ngezinga lokushisa eliphansi, impilo ende, ifanele izindawo ezahlukahlukene.

I-Ac servo motor nayo iyimoto engenamabhulashi, ihlukaniswe yaba yimoto ehambisanayo nengavumelani, ukulawula ukunyakaza kwamanje kuvame ukusetshenziswa yimoto ehambisanayo, ububanzi bayo bamandla, amandla angaba makhulu kakhulu, i-inertia enkulu, isivinini esiphezulu siphansi, isivinini ngokwanda kwamandla kanye nokwehla okufanayo, kufanelekile ngezikhathi zokusebenza okubushelelezi ngesivinini esiphansi.

Ingaphakathi le-rotor ye-servo motor liyi-magnets ehlala njalo, i-U/V/W yokulawula idrayivu kagesi enezigaba ezintathu yakha insimu ye-electromagnetic, ngaphansi kwesenzo se-rotor egingqikayo kule nsimu, ngesikhathi esifanayo, imoto enesignali yempendulo ye-encoder ku-drive, inani lempendulo liqhathaniswa nelitshe, ukuze kulungiswe i-Engela ye-rotor egingqikayo, ukunemba kwe-servo motor kunqunywa ukunemba kwe-encoder (inombolo yomugqa).

Iyini injini ye-servo? Zingaki izinhlobo ezikhona? Yiziphi izici zomsebenzi?

Impendulo: umqondo we-servo kagesi owaziwa nangokuthi umqondo we-ejensi kagesi, ohlelweni lokulawula okuzenzakalelayo lusetshenziswa njengesici se-ejensi, isignali kagesi etholakele ku-axis yomqondo kagesi ukufuduka kwe-angular noma ukuphuma kwesivinini se-angular.