Kodi ma stepper motors amachedwa bwanji?

Ma mota oyendera masitepeNdi zipangizo zamagetsi zomwe zimasintha mwachindunji ma impulse amagetsi kukhala kayendedwe ka makina. Mwa kuwongolera kutsatana, kuchuluka kwa ma impulse amagetsi omwe amagwiritsidwa ntchito pa ma coil a mota, ma stepper motors amatha kulamulidwa kuti azitha kuyendetsa, kuthamanga ndi ngodya yozungulira. Popanda thandizo la njira yowongolera ma feedback yotsekedwa yokhala ndi kuzindikira malo, malo olondola komanso kuwongolera liwiro zitha kuchitika pogwiritsa ntchito njira yosavuta komanso yotsika mtengo yowongolera ma open-loop yokhala ndi mota ya stepper ndi driver wake.

Stepping motor ngati gawo loyendetsa, ndi chimodzi mwazinthu zofunika kwambiri za mechatronics, zomwe zimagwiritsidwa ntchito kwambiri m'njira zosiyanasiyana zowongolera automation. Ndi chitukuko cha ukadaulo wa ma microelectronics ndi ukadaulo wopanga molondola, kufunikira kwa ma stepper motors kukuwonjezeka tsiku ndi tsiku, ndipo ma stepper motors ndi gear transmission mechanism pamodzi ndi ma gearbox, komanso m'magawo ambiri ogwiritsira ntchito kuti muwone, lero aliyense amvetsetsa mtundu uwu wa gearbox transmission mechanism.

Momwe mungachepetsere kuthamanga kwa magazimota ya stepper?

Monga injini yoyendetsera yomwe imagwiritsidwa ntchito kwambiri komanso yogwiritsidwa ntchito kwambiri, mota yoyendetsa nthawi zambiri imagwiritsidwa ntchito limodzi ndi zida zochepetsera mphamvu kuti ikwaniritse zotsatira zabwino zotumizira; ndipo zida zochepetsera mphamvu zomwe zimagwiritsidwa ntchito kwambiri ndi njira za mota yoyendetsa ndi monga ma gearbox ochepetsera mphamvu, ma encoder, owongolera, ma pulse signals ndi zina zotero.

Kuchepa kwa chizindikiro cha kugunda kwa mtima: liwiro la mota ya stepper, kumadalira kusintha kwa chizindikiro cha kugunda kwa mtima kuti chisinthe. Mwachidziwitso, perekani dalaivala kugunda kwa mtima,mota ya stepperimazungulira ngodya ya sitepe (yogawidwa pang'ono pa ngodya ya sitepe yogawidwa). Mwachizolowezi, ngati chizindikiro cha pulse chisintha mofulumira kwambiri, mota ya stepper, chifukwa cha mphamvu yamkati ya reverse electromotive, maginito pakati pa rotor ndi stator sadzatha kutsatira kusintha kwa chizindikiro chamagetsi, zomwe zingayambitse kutsekeka ndi kutayika kwa sitepe.

Kuchepetsa liwiro la bokosi la giya: mota ya stepper yokhala ndi bokosi la giya lochepetsera lomwe limagwiritsidwa ntchito pamodzi, mota ya stepper imatulutsa liwiro lalikulu, liwiro lotsika la torque, yolumikizidwa ku bokosi la giya lochepetsera, magiya ochepetsera mkati mwa bokosi la giya opangidwa ndi chiŵerengero chochepetsera, kutulutsa kwa injini ya stepper kwa kuchepetsa liwiro lalikulu, ndikuwonjezera mphamvu ya magiya, kuti ikwaniritse zotsatira zabwino kwambiri; zotsatira za kuchepa kwa liwiro zimadalira chiŵerengero chochepetsera bokosi la giya, chiŵerengero chochepetsera chachikulu, liwiro lotulutsa limakhala laling'ono, ndi mosemphanitsa. Zotsatira za kuchepa kwa liwiro zimadalira chiŵerengero chochepetsera bokosi la giya, chiŵerengero chochepetsera chachikulu, liwiro lotulutsa limakhala laling'ono komanso mosemphanitsa.

Liwiro la kulamulira kwa exponential curve: exponential curve, mu mapulogalamu a mapulogalamu, kuwerengera koyamba kwa nthawi yokhazikika yosungidwa mu kukumbukira kwa kompyuta, ntchito yolozera ku kusankha. Kawirikawiri, nthawi yofulumira ndi yochepetsera liwiro kuti mumalize mota ya stepper ndi yoposa 300ms. Ngati mugwiritsa ntchito nthawi yochepa kwambiri yofulumira ndi yochepetsera liwiro, kwa ambiri amota zoyendera masitepe, zidzakhala zovuta kukwaniritsa kuzungulira kwa mota ya stepper mwachangu.

Kuchepetsa mphamvu kwa ma encoder: Kuwongolera kwa PID, monga njira yosavuta komanso yothandiza yowongolera, kwagwiritsidwa ntchito kwambiri mu ma stepper motor drives. Kumadalira pa mtengo woperekedwa r (t) ndipo mtengo weniweni wotulutsa c (t) umapanga kupotoka kwa ulamuliro e (t), kupotoka kwa proportional, integral ndi differential kudzera mu linear kuphatikiza kwa control quantity, control object control. Integrated position sensor imagwiritsidwa ntchito mu two-phase hybrid stepper motor, ndipo auto-adjustable PI speed control imapangidwa pogwiritsa ntchito position detector ndi vector control, zomwe zingapereke makhalidwe okhutiritsa a transient pansi pa mikhalidwe yosinthika yogwirira ntchito. Malinga ndi chitsanzo cha masamu cha stepper motor, PID control system ya stepper motor imapangidwa, ndipo PID control algorithm imagwiritsidwa ntchito kupeza control quantity, kuti ilamulire motor kuti isamukire ku malo omwe yatchulidwa.

Pomaliza, ulamuliro umatsimikiziridwa ndi simulation kuti uli ndi makhalidwe abwino oyankha. Kugwiritsa ntchito PID controller kuli ndi ubwino wa kapangidwe kosavuta, kulimba, kudalirika ndi zina zotero, koma sikungathe kuthana bwino ndi chidziwitso chosatsimikizika mu dongosolo.