Kuyaziwa emkhakheni wobunjiniyela ukuthi ukubekezelelwa kwemishini kunomthelela omkhulu ekunembeni nasekunembeni kwalo lonke uhlobo lwedivayisi ongayicabanga ngaphandle kokubheka ukusetshenziswa kwayo. Lokhu kuyiqiniso futhiama-stepper motors. Isibonelo, i-stepper motor ejwayelekile enezinga lokubekezelela cishe iphutha elingamaphesenti angu-5 ngesinyathelo ngasinye. Lawa amaphutha angaqoqiyo ngendlela. Amamotho amaningi anyathelayo anyakaza amadigri angu-1.8 ngesinyathelo ngasinye, okuholela kububanzi obungaba khona bephutha obungu-0.18 degrees, nakuba sikhuluma ngezinyathelo ezingu-200 ngokuzungezisa ngakunye (bona Umfanekiso 1).
I-2-Phase Stepper Motors - Uchungechunge lwe-GSSD
Isinyathelo Esincane Sokunemba
Ngezinga elijwayelekile, elingaqoqiyo, ukunemba kwamaphesenti angu-±5, indlela yokuqala nenengqondo kakhulu yokwandisa ukunemba ukunyathela injini kancane. I-Micro stepping indlela yokulawula ama-stepper motors angafinyeleli kuphela ukulungiswa okuphezulu kodwa ukunyakaza okushelelayo ngesivinini esiphansi, okungaba inzuzo enkulu kwezinye izinhlelo zokusebenza.
Ake siqale nge-engeli yethu yesinyathelo engu-1.8-degree. Lesi sinyathelo se-engeli sisho ukuthi njengoba injini ihamba kancane isinyathelo ngasinye siba yingxenye enkulu yawo wonke. Ngesivinini esinensayo nesinensayo, usayizi wesinyathelo esikhulu kakhulu ubangela ukugingqika kumotho. Enye indlela yokunciphisa lokhu kuncipha kokushelela kokusebenza ngesivinini esincane ukunciphisa usayizi wesinyathelo ngasinye semoto. Yilapho i-micro stepping iba enye indlela ebalulekile.
Ukunyathela okuncane kufinyelelwa ngokusebenzisa i-pulse-width modulated (PWM) ukulawula amandla amanje kuma-motor windings. Okwenzekayo ukuthi umshayeli wemoto uletha amagagasi amabili e-voltage sine kuma-motor windings, ngalinye elingama-degree angama-90 liphume esigabeni kwelinye. Ngakho-ke, ngenkathi ukwanda kwamanje ekujikeni okukodwa, kuyehla kokunye ukusonga ukuze kukhiqizwe ukudluliswa kwamanje kancane kancane, okuholela ekunyakazeni okushelelayo kanye nokukhiqizwa kwetorque okungaguquki kunalokho umuntu azokuthola esinyathelweni esigcwele esijwayelekile (noma ngisho nesinyathelo esivamile esiyisigamu) sokulawula. (bheka Umfanekiso 2).
i-eksisi eyodwaisilawuli se-stepper motor + driver siyasebenza
Lapho bethatha isinqumo sokwenyuka kokunemba okusekelwe ekulawuleni ukunyathela okuncane, onjiniyela kufanele bacabangele ukuthi lokhu kuzithinta kanjani zonke ezinye izici zemoto. Nakuba ubushelelezi bokulethwa kwetorque, ukunyakaza kwesivinini esiphansi, nokuzwakala kwemisindo kungase kuthuthukiswe kusetshenziswa izitebhisi ezincane, imikhawulo evamile ekulawuleni nasekuklanyweni kwemoto kuzivimbela ekufinyeleleni izici zazo eziphelele. Ngenxa yokusebenza kwe-stepper motor, ama-micro stepping drives angakwazi ukulinganisa kuphela i-sine wave yangempela. Lokhu kusho ukuthi ukugeleza kwetorque ethile, ukuzwakala, nomsindo kuzohlala kusistimu nakuba ngakunye kwalokhu kwehliswe kakhulu ekunyatheleni okuncane.
Ukunemba Komshini
Okunye ukulungiswa komshini ukuze uthole ukunemba ku-stepper motor yakho ukusebenzisa umthwalo omncane we-inertia. Uma injini ixhunywe ku-inertia enkulu lapho izama ukuma, umthwalo uzobangela ukuzungeza kancane kancane. Ngoba lokhu kuvame ukuba yiphutha elincane, isilawuli semoto singasetshenziswa ukulilungisa.
Ekugcineni, sibuyela kusilawuli. Le ndlela ingase ithathe umzamo othile wobunjiniyela. Ukuze uthuthukise ukunemba, ungase ufune ukusebenzisa isilawuli esilungiselelwe ngokukhethekile injini okhethe ukuyisebenzisa. Lena indlela enembile kakhulu yokuhlanganisa. Uma isilawuli senza kangcono ikhono lokusebenzisa amandla amanje ngendlela enembile, kulapho ungathola khona ukunemba okwengeziwe ku-stepper motor oyisebenzisayo. Lokhu kungenxa yokuthi isilawuli silawula ngqo ukuthi ingakanani imali etholwa ama-motor windings ukuqalisa ukunyakaza.
Ukunemba kumasistimu okunyakazayo kuyisidingo esivamile kuye ngohlelo lokusebenza. Ukuqonda ukuthi i-stepper system isebenza kanjani ndawonye ukuze idale ukunemba kuvumela unjiniyela ukuthi asebenzise ubuchwepheshe obutholakalayo, okuhlanganisa nalolo olusetshenziswe ekwakhiweni kwezingxenye zemishini zenjini ngayinye.
Isikhathi sokuthumela: Oct-19-2023
