I-Stepper motor sisixhobo esishukumayo esicacileyo, esinonxibelelwano oluyimfuneko kunye netekhnoloji yanamhlanje yolawulo lwedijithali.Kwinkqubo yangoku yolawulo lwedijithali yasekhaya, ii-motor stepper zisetyenziswa kakhulu.Ngokuvela kwazo zonke iinkqubo ze-AC servo zedijithali, ii-motor servo ze-AC zisetyenziswa kakhulu kwiinkqubo zolawulo lwedijithali.Ukuze uziqhelanise nendlela yophuhliso yolawulo lwedijithali, iimotor stepper okanye zonke-digital AC servo motors zisetyenziswa kakhulu njengeemotor ezilawulayo kwiinkqubo zolawulo lwentshukumo.Nangona zombini zifana kwindlela yokulawula (i-pulse train kunye nesignali yesalathiso), kukho ukungafani okukhulu ekusebenzeni kunye nezihlandlo zokusetyenziswa.Ngoku thelekisa ukusebenza kwezi zibini.
Ukuchaneka kokulawula kuyahluka
Ii-engile zenqanaba le-hybrid stepper motors ziqhelekile zii-3.6 degrees kunye ne-1.8 degrees, kwaye ii-engile zenqanaba le-hybrid stepper motors ziyi-0.72 degrees kunye ne-0.36 degrees.Kukwakho nezinye iimotor ezikumgangatho ophezulu ezineengile zokunyathela ezincinci.Ngokomzekelo, i-motor steping eveliswe yiNkampani ye-Stone yezixhobo zomatshini wocingo oluhamba kancinci ine-angle yesinyathelo se-0.09 degrees;inqanaba lesithathu i-hybrid stepping motor eveliswe ngu-BERGER LAHR ine-engile yenyathelo le-0.09 degrees.Ukutshintsha kwe-DIP kumiselwe kwi-1.8 degrees, i-0.9 degrees, i-0.72 degrees, i-0.36 degrees, i-0.18 degrees, i-0.09 degrees, i-degrees 0.072, i-degrees 0.036, ehambelana ne-angle yenqanaba lesigaba esibini kunye nesigaba sesihlanu se-hybrid yokunyathela iimotor.
Ukuchaneka kokulawula kwe-AC servo motor iqinisekiswa yi-encoder ejikelezayo ekupheleni kwe-motor shaft.Kwimoto enomgangatho we-2500-encoder ye-encoder, ipulse elingana nama-360 degrees/10000=0.036 degrees ngenxa ye-quadruple frequency technology ngaphakathi komqhubi.Kwimoto ene-17-bit encoder, ngalo lonke ixesha umqhubi efumana i-217=131072 pulses, i-motor yenza i-revolution enye, oko kukuthi, i-pulse yayo ilingana ne-360 degrees / 131072 = 9.89 imizuzwana.Yi-1/655 ye-pulse elingana ne-stepper motor ene-angle yesinyathelo se-1.8 degrees.
Iimpawu zefrikhwensi ephantsi zahlukile:
Iimotor zeStepper ziqhelene nokungcangcazela okuphantsi kwezantya eziphantsi.I-vibration frequency ihambelana nemeko yomthwalo kunye nokusebenza komqhubi.Ngokuqhelekileyo kukholelwa ukuba i-vibration frequency sisiqingatha se-no-load-off frequency ye-motor.Le nto ye-vibration ye-low-frequency vibration egqitywe ngumgaqo wokusebenza we-steping motor ayithandeki kakhulu ekusebenzeni okuqhelekileyo komatshini.Xa i-stepper motor isebenza ngesantya esiphantsi, itekhnoloji yokudambisa kufuneka isetyenziswe ngokubanzi ukoyisa isenzeko sokungcangcazela esine-frequency-frequency-frequency, njengokongeza i-damper kwi-motor, okanye ukusebenzisa itekhnoloji yokwahlulahlula kumqhubi, njl.
I-AC servo motor ibaleka kakuhle kwaye ayingcangcazeli nakwizantya eziphantsi.Inkqubo ye-servo ye-AC inomsebenzi wokunciphisa i-resonance, enokuthi igubungele ukungabikho kokuqina komatshini, kwaye inkqubo inomsebenzi wokuhlalutya rhoqo (FFT) ngaphakathi kwenkqubo, enokubona indawo ye-resonance yomatshini kwaye iququzelele ukulungiswa kwenkqubo.
Iimpawu zomzuzwana zahlukile:
I-torque ephumayo ye-motor stepper iyancipha ngokunyuka kwesantya, kwaye iya kuhla ngokukhawuleza kwisantya esiphezulu, ngoko ke isantya esiphezulu sokusebenza kwayo sihlala si-300-600RPM.I-AC servo motor ine-torque ephuma rhoqo, oko kukuthi, inokukhupha i-torque elinganisiweyo ngaphakathi kwesantya sayo esilinganisiweyo (ngokuqhelekileyo i-2000RPM okanye i-3000RPM), kwaye sisiphumo samandla esingaguqukiyo ngaphezu kwesantya esilinganiselweyo.
Umthamo wokulayisha ngaphezulu wahlukile:
Iinjini zeStepper azinasakhono sokugcwala.I-AC servo motor inomthamo owomeleleyo wokugcwala.Thatha inkqubo ye-servo ye-Panasonic AC njengomzekelo, inomthwalo ogqithisiweyo wesantya kunye nomthamo we-torque.I-torque yayo ephezulu ngamaxesha amathathu e-torque elinganisiweyo, engasetyenziselwa ukunqoba umzuzu we-inertial yomthwalo ongenayo ngexesha lokuqalisa.Ngenxa yokuba i-stepper motor ayinalo olu hlobo lomthamo wokulayisha, ukuze woyise lo mzuzu we-inertia xa ukhetha imodeli, kudla ngokufuneka ukuba ukhethe i-motor enetorque enkulu, kwaye umatshini awudingi torque enkulu kangako ngexesha. ukusebenza okuqhelekileyo, ngoko i-torque ibonakala.Isenzeko senkunkuma.
Ukusebenza okusebenzayo kwahlukile:
Ulawulo lwenjini yokunyathela lulawulo oluvulekileyo lwe-loop.Ukuba i-frequency yokuqala iphezulu kakhulu okanye umthwalo mkhulu kakhulu, ilahleko yenyathelo okanye ukuzinza kuya kwenzeka ngokulula.Xa isantya siphezulu kakhulu, ukudubula kuya kwenzeka ngokulula xa isantya siphezulu kakhulu.Ngoko ke, ukuze kuqinisekiswe ukuchaneka kolawulo lwayo, kufuneka luphathwe ngokufanelekileyo.Imiba yokunyuka kunye nokuhla.Inkqubo ye-AC servo drive ivaliwe-loop ulawulo.I-drive inokwenza isampuli ngokuthe ngqo umqondiso wengxelo ye-encoder yemoto, kwaye i-loop yendawo yangaphakathi kunye nesantya sesantya zenziwe.Ngokubanzi, akuyi kubakho ukulahleka kwenyathelo okanye ukudlula ngaphezulu kwe-motor yokunyathela, kwaye ukusebenza kokulawula kunokwethenjelwa ngakumbi.
Ukusebenza kwempendulo yesantya kwahlukile:
Kuthatha i-200-400 millisecond kwi-stepper motor ukukhawulezisa ukusuka kwi-standstill ukuya kwisantya sokusebenza (ngokubanzi amakhulu aliqela okuguqulwa ngomzuzu).Ukusebenza ngokukhawuleza kwenkqubo ye-AC servo kungcono.Ukuthatha i-CRT AC servo motor njengomzekelo, kuthatha kuphela i-millisecond ezimbalwa ukukhawulezisa ukusuka kwi-static ukuya kwisantya esilinganisiweyo se-3000RPM, esinokusetyenziswa kwiimeko zokulawula ezifuna ukuqala nokuyeka ngokukhawuleza.
Ukushwankathela, inkqubo ye-servo ye-AC iphezulu kwi-motor stepper kwimiba emininzi yokusebenza.Kodwa kwezinye iimeko ezingabalulekanga kangako, iimoto ezinyathelayo zihlala zisetyenziswa njengeemotor ezilawulayo.Ngoko ke, kwinkqubo yoyilo lwenkqubo yokulawula, izinto ezahlukeneyo ezifana neemfuno zokulawula kunye neendleko kufuneka ziqwalaselwe ngokubanzi, kwaye kufuneka kukhethwe imoto yokulawula efanelekileyo.
I-stepper motor yi actuator eguqula iipulse zombane zibe yi-angular displacement.Ngokwemigaqo ye-layman: xa umqhubi we-stepper efumana i-pulse signal, iqhubela i-motor stepper ukujikeleza i-angle esisigxina (kunye ne-angle yesinyathelo) kwindlela emiselweyo.
Unokulawula ukufuduka kwe-angular ngokulawula inani lee-pulses, ukuze ufezekise injongo yokubeka ngokuchanekileyo;Kwangaxeshanye, unokulawula isantya kunye nokukhawuleza kokujikeleza kwemoto ngokulawula i-pulse frequency, ukuze ufezekise injongo yolawulo lwesantya.
Kukho iintlobo ezintathu zeenjini ze-stepper: imagnethi esisigxina (PM), i-reactive (VR) kunye ne-hybrid (HB).
Ukunyathela kwemagnethi okusisigxina ngokuqhelekileyo kukwinqanaba ezibini, kunye netorque encinci kunye nomthamo, kwaye i-angle yenyathelo ngokubanzi yi-7.5 degrees okanye i-15 degrees;
Ukunyathela okusebenzayo ngokuqhelekileyo kukwinqanaba lesithathu, elinokuthi libone imveliso yetorque enkulu, kwaye i-angle yokunyathela iqhele ukuba yi-1.5 degrees, kodwa ingxolo kunye nokungcangcazela kukhulu kakhulu.Kumazwe ahambele phambili njengeYurophu neUnited States, iye yapheliswa ngeminyaka yee-1980;
i-hybrid stepper ibhekisa kwindibaniselwano yezibonelelo zohlobo lwemagnethi esisigxina kunye nohlobo olusebenzayo.Yahlulahlulwe ngokwezigaba ezibini nezintlanu: i-angle yenqanaba lenqanaba lesibini ngokuqhelekileyo i-1.8 degrees kunye ne-five-phase step angle angle jikelele yi-0.72 degrees.Olu hlobo lwe-stepper motor lusetyenziswa kakhulu.
Ixesha lokuposa: Mar-25-2023