Umshayeli ulawula ugesi wezigaba ezintathu ze-U/V/W ukuze akhe inkambu ye-electromagnetic, futhi i-rotor izungeza ngaphansi kwesenzo senkundla kazibuthe. Ngesikhathi esifanayo, isifaki khodi senjini sibuyisela isignali kudrayivu. Umshayeli uqhathanisa inani lempendulo nenani eliqondiwe ukuze alungise i-rotor rotation angle.Ukunemba kwe-servo motor kuncike ekunembeni (inombolo yemigqa) yesishumeki. Ihlukaniswe ngama-DC kanye ne-AC servo motors. Isici saso esiyinhloko ukuthi lapho i-voltage yesignali ingu-zero, ayikho into yokujikeleza, futhi ijubane liyancipha ngokulinganayo ngokunyuka kwe-torque. Qonda isakhiwo esiyisisekelo se-servo motor, lawula isimiso sayo sokusebenza, izici zokusebenza nezici, kanye nezikhathi zokufaka isicelo, ukuze ukhethe futhi uyisebenzise ngendlela efanele. Yiziphi izici zesimiso sokusebenza se-servo motor?
1. Iyini i-servo motor?
Ama-Servo motors, aziwa nangokuthi ama-actuator motors, angama-actuator kusistimu yokulawula eguqula amasignali kagesi abe ama-engeli noma isivinini ku-shaft ukushayela into yokulawula.I-Servo motor, eyaziwa nangokuthi yi-executive motor, iyisici esiphezulu kusistimu yokulawula okuzenzakalelayo eguqula isignali kagesi eyamukelwe ibe i-angular displacement noma ukuphuma kwe-angular velocity ku-motor shaft.
Ihlukaniswe ngama-DC kanye ne-AC servo motors.Isici saso esiyinhloko ukuthi lapho i-voltage yesignali ingu-zero, ayikho into yokujikeleza, futhi ijubane liyancipha ngokulinganayo ngokunyuka kwe-torque.
2. Izici eziphezulu ze-servo motor
Uma kukhona okokufaka kwesignali yokulawula, i-servo motor iyajikeleza; uma kungekho okokufaka kwesignali yokulawula, izoyeka ukujikeleza. Ijubane nokuqondisa kwe-servo motor kungashintshwa ngokushintsha ubukhulu nesigaba (noma i-polarity) ye-voltage yokulawula. Kusukela ngawo-1980, ngokuthuthukiswa kwamasekethe adidiyelwe, ubuchwepheshe be-electronics kagesi kanye nobuchwepheshe bokulawula isivinini se-AC, ubuchwepheshe be-AC servo drive obuhlala njalo bube nenqubekelaphambili enkulu. Abakhiqizi bezimoto abadumile emazweni ahlukahlukene bethule uchungechunge lwabo lwama-AC servo motors nama-servo drives, futhi bahlala bethuthuka futhi bebuyekeza.
Uhlelo lwe-AC servo seluphenduke inkomba eyinhloko yokuthuthukiswa kohlelo lwesimanje lwe-servo olusebenza kakhulu, okwenza uhlelo lokuqala lwe-DC servo lubhekane nenkinga yokuqedwa. Ngemuva kweminyaka yawo-1990s, amasistimu e-AC servo emhlabeni jikelele aqhutshwa ama-sine wave motors alawulwa ngokugcwele ngedijithali. Ukuthuthukiswa kwamadrayivu e-AC servo emkhakheni wokudlulisa kuyashintsha nosuku ngalunye oludlulayo.
3. Uma kuqhathaniswa namamotho ajwayelekile, ama-servo motors anezici ezilandelayo
(1) Ibanga lokulawula isivinini libanzi.Njengoba i-voltage yokulawula ishintsha, ijubane le-servo motor lingalungiswa ngokuqhubekayo phezu kohlu olubanzi.
(2) I-rotor inertia incane, ngakho ingaqala futhi ime ngokushesha.
(3) Amandla okulawula mancane, umthamo wokulayisha ngokweqile unamandla, futhi ukwethembeka kuhle.
4. Ukusetshenziswa okujwayelekile kwe-servo motor ohlelweni lokulawula okuzenzakalelayo
Siemens, Kollmorgen, Panasonic futhi Yaskawa
Yiziphi izimiso zokusebenza zama-servo motors? Ukufingqa, izinhlelo ze-AC servo ziphakeme kunama-stepper motors ngezindlela eziningi.Kodwa-ke, kwezinye izimo ezingafuneki kangako, ama-stepper motors avame ukusetshenziswa njengama-actuator motor.Ngakho-ke, ekuklanyweni kwenqubo yokulawula, kuyadingeka ukucabangela ngokucophelela izidingo zokulawula, izindleko nezinye izici ukuze ukhethe injini yokulawula efanele.
Isikhathi sokuthumela: Sep-24-2022