Ka'idar aiki ta injin goga
Babban tsarininjin da ba shi da gogewashine stator + rotor + goga, kuma ana samun karfin juyi ta hanyar juya filin maganadisu don fitar da kuzarin motsi. Goga yana ci gaba da hulɗa da na'urar commutator don gudanar da wutar lantarki da canza yanayin juyawa.
Injin burushi yana AMFANI da canjin injina, sandar maganadisu baya motsawa, juyawar murfi. Lokacin da injin yake aiki, murfi da mai juyawa suna juyawa, yayin da ƙarfe mai maganadisu da goga na carbon ba sa juyawa. Canjin canjin alkiblar murfi yana faruwa ne ta hanyar mai sauyawa da goga waɗanda ke juyawa tare da injin.
A cikin injin buroshi, wannan tsari shine a haɗa ƙarshen shigar wutar lantarki guda biyu na na'urar, bi da bi, a shirya su a cikin zobe, a raba su da kayan rufewa tsakanin juna, suna samar da wani abu kamar silinda, su zama cikakke na halitta akai-akai tare da shaft ɗin motar, samar da wutar lantarki ta hanyar ƙananan ginshiƙai guda biyu da aka yi da carbon (goga na carbon), ƙarƙashin aikin matsin lamba na bazara, daga takamaiman matsayi guda biyu, matsin lamba akan shigar wutar lantarki, maki biyu na na'urar silinda mai zagaye zuwa na'urar lantarki.
Kamar yaddainjinyana juyawa, ana kunna na'urori daban-daban ko sanduna daban-daban na na'urar iri ɗaya a lokuta daban-daban, don haka akwai bambancin kusurwa mai dacewa tsakanin sandar ns na na'urar da ke samar da filin maganadisu da sandar ns na na'urar stator ta maganadisu mafi kusa. Filayen maganadisu suna jan hankalin juna kuma suna tunkuɗa juna, suna samar da ƙarfi kuma suna tura injin don juyawa. Na'urar lantarki ta carbon tana zamewa akan kan waya kamar goga a saman wani abu, don haka ake kiranta "goga".
Zamewa da juna zai haifar da gogayya da asarar gogayen carbon, waɗanda ake buƙatar a maye gurbinsu akai-akai. Canzawa tsakanin gogayen carbon da kan waya na na'urar na iya haifar da walƙiyar lantarki, fashewar lantarki da kuma tsangwama ga kayan lantarki.
Ka'idar aiki ta injin Brushless
A cikin injin da ba shi da gogewa, ana yin canjin ta hanyar da'irar sarrafawa a cikin mai sarrafawa (galibi firikwensin zauren + mai sarrafawa, kuma fasahar da ta fi ci gaba ita ce mai rikodin maganadisu).
Motar da ba ta da gogewa tana AMFANI da na'urar lantarki mai juyi, na'urar ba ta motsawa, sandar maganadisu tana juyawa. Motar da ba ta da gogewa tana AMFANI da saitin kayan lantarki don jin matsayin sandar maganadisu ta dindindin ta hanyar abin da ke cikin zauren SS2712. A bisa wannan ma'anar, ana amfani da da'irar lantarki don canza alkiblar wutar lantarki a cikin na'urar a daidai lokacin don tabbatar da samar da ƙarfin maganadisu a daidai alkiblar don tuƙa motar. Kawar da rashin amfanin injin burushi.
Ana kiran waɗannan da'irori masu sarrafa motoci. Mai sarrafa motar da ba ta da gogewa kuma zai iya aiwatar da wasu ayyuka waɗanda ba za a iya aiwatar da su ta hanyar injin da ba ta da gogewa ba, kamar daidaita kusurwar canza wutar lantarki, injin birki, yin motar baya, kulle motar, da amfani da siginar birki don dakatar da samar da wutar lantarki ga motar. Yanzu motar baturi tana kulle ƙararrawa ta lantarki, akan cikakken amfani da waɗannan ayyukan.
Motar dc mara gogewa samfurin mechatronics ne na yau da kullun, wanda ya ƙunshi jikin motar da direba. Tunda ana amfani da motar dc mara gogewa a yanayin sarrafawa ta atomatik, ba zai ƙara juyawar farawa zuwa rotor kamar motar synchronous tare da daidaitaccen saurin mita da fara nauyi mai nauyi ba, kuma ba zai haifar da juyawa da fita ba lokacin da nauyin ya canza.
Bambancin yanayin daidaita gudu tsakanin injin goga da injin mara gogewa
A zahiri, ikon sarrafa nau'ikan injin guda biyu shine daidaita ƙarfin lantarki, amma saboda brushless dc yana AMFANI da na'urar commutator ta lantarki, don haka ana iya cimma shi ta hanyar sarrafa dijital, kuma brushless dc yana amfani da na'urar commutator ta goga carbon, ana iya sarrafa da'irar analog ta gargajiya ta amfani da silicon, mai sauƙi.
1. Tsarin daidaita gudu na injin buroshi shine daidaita ƙarfin wutar lantarki na injin. Bayan daidaitawa, ana canza wutar lantarki da wutar lantarki ta hanyar commutator da buroshi don canza ƙarfin filin maganadisu da electrode ke samarwa don cimma manufar canza saurin. Wannan tsari ana kiransa da daidaita matsin lamba.
2. Tsarin daidaita gudu na injin mara gogewa shine cewa ƙarfin wutar lantarki na wutar lantarki na motar ba ya canzawa, ana canza siginar sarrafawa na daidaitawar wutar lantarki, kuma ana canza saurin sauyawa na bututun MOS mai ƙarfi ta hanyar microprocessor don cimma canjin saurin. Wannan tsari ana kiransa juyawar mita.
Bambancin aiki
1. Injin goge yana da tsari mai sauƙi, tsawon lokacin haɓakawa da fasaha mai girma
A ƙarni na 19, lokacin da aka haifi motar, injin mai amfani shine nau'in buroshi mara gogewa, wato injin ac squirrel-cage asynchronous motor, wanda aka yi amfani da shi sosai bayan samar da wutar lantarki mai canzawa. Duk da haka, injin asynchronous yana da lahani da yawa da ba za a iya shawo kansu ba, don haka ci gaban fasahar mota yana da jinkiri. Musamman ma, injin dc mara gogewa ba a iya sanya shi cikin aikin kasuwanci ba. Tare da saurin haɓaka fasahar lantarki, an sanya shi a hankali cikin aikin kasuwanci har zuwa 'yan shekarun nan. A zahiri, har yanzu yana cikin rukunin motar ac.
An haifi injin mara gogewa ba da daɗewa ba, mutane sun ƙirƙiro injin dc mara gogewa. Saboda tsarin injin dc yana da sauƙi, mai sauƙin samarwa da sarrafawa, mai sauƙin kulawa, mai sauƙin sarrafawa; injin Dc kuma yana da saurin amsawa, babban ƙarfin farawa, kuma yana iya samar da aikin ƙarfin juyi mai ƙima daga sifili zuwa saurin da aka ƙima, don haka an yi amfani da shi sosai da zarar ya fito.
2. Motar dc mara gogewa tana da saurin amsawa da sauri da kuma babban ƙarfin farawa
Motar Dc mara gogewa tana da saurin amsawa, babban ƙarfin farawa, canjin gudu mai ƙarfi, kusan babu girgiza da ake ji daga sifili zuwa matsakaicin gudu, kuma tana iya tuƙa babban kaya lokacin farawa. Motar mara gogewa tana da babban juriya na farawa (mai amsawar inductive), don haka ƙarfin wutar lantarki ƙarami ne, ƙarfin farawa ƙarami ne, sautin farawa yana ƙara ƙarfi, tare da girgiza mai ƙarfi, kuma nauyin tuƙi yana ƙarami lokacin farawa.
3. Motar dc mara gogewa tana aiki cikin sauƙi kuma tana da kyakkyawan tasirin birki
Ana sarrafa injin mara gogewa ta hanyar daidaita ƙarfin lantarki, don haka farawa da birki suna da ƙarfi, kuma aikin gudu na yau da kullun yana da ƙarfi. Yawanci ana sarrafa injin mara gogewa ta hanyar canza mitar dijital, wanda da farko ke canza ac zuwa dc, sannan dc zuwa ac, kuma yana sarrafa saurin ta hanyar canjin mita. Saboda haka, injin mara gogewa ba ya aiki yadda ya kamata lokacin farawa da birki, tare da babban girgiza, kuma zai kasance mai ƙarfi ne kawai lokacin da saurin yake daidai.
4, daidaiton sarrafa goga na DC yana da girma
Yawanci ana amfani da injin Dc mara gogewa tare da akwatin ragewa da na'urar decoder don ƙara ƙarfin fitarwa na motar da kuma daidaiton sarrafawa mafi girma, daidaiton sarrafawa na iya kaiwa 0.01 mm, kusan yana iya barin sassan motsi su tsaya a kowane wuri da ake so. Duk kayan aikin injin daidaitacce daidaiton sarrafa motar dc ne. Tunda injin mara gogewa ba ya karyewa yayin farawa da birki, sassan motsi za su tsaya a wurare daban-daban a kowane lokaci, kuma matsayin da ake so za a iya tsayar da shi ne kawai ta hanyar sanya fil ko mai iyakance matsayi.
5, farashin amfani da injin goga na dc yana da ƙasa, kuma yana da sauƙin gyarawa
Saboda sauƙin tsarin injin dc mara gogewa, ƙarancin farashin samarwa, masana'antun da yawa, fasahar zamani, don haka ana amfani da shi sosai, kamar masana'antu, kayan aikin injin sarrafawa, kayan aikin daidai, da sauransu, idan motar ta lalace, kawai maye gurbin goga na carbon, kowace goga ta carbon tana buƙatar 'yan daloli kawai, mai arha sosai. Fasahar injin mara gogewa ba ta girma ba, farashin ya fi girma, iyakokin aikace-aikacen suna da iyaka, galibi ya kamata ta kasance cikin kayan aiki masu sauri akai-akai, kamar na'urar sanyaya iska mai canzawa akai-akai, firiji, da sauransu, lalacewar injin mara gogewa za a iya maye gurbinta kawai.
6, babu goga, ƙarancin tsangwama
Injinan da ba su da goge-goge suna cire burushi, mafi yawan canjin shine rashin walƙiyar da ke aiki da injin burushi, wanda hakan ke rage tsangwamar walƙiyar lantarki ga kayan aikin rediyo masu nisa.
7. Ƙarancin hayaniya da aiki mai santsi
Ba tare da goge-goge ba, injin da ba shi da goge-goge ba zai sami gogayya sosai yayin aiki ba, aiki mai santsi da ƙarancin hayaniya, wanda hakan babban tallafi ne ga kwanciyar hankalin aikin samfuri.
8. Tsawon rai da ƙarancin kuɗin kulawa
Goga mai ƙarancin gogewa, lalacewar injina mara gogewa galibi tana cikin bearing, daga mahangar injiniya, injin mara gogewa kusan babu gyara, idan ya zama dole, kawai a yi ɗan gyaran ƙura.
Za ka iya so:
Lokacin Saƙo: Agusta-29-2019
