tsamba

nkhani

Kusiyana kwamagalimoto 1: liwiro / torque / kukula

Kusiyana kwamagalimoto 1: liwiro / torque / kukula

Pali mitundu yonse ya injini padziko lapansi.Injini yayikulu ndi mota yaying'ono.Galimoto yomwe imayenda uku ndi uku m'malo mozungulira.Injini yomwe poyang'ana koyamba sizidziwika chifukwa chake ndiyokwera mtengo.Komabe, ma mota onse amasankhidwa pazifukwa.Ndiye ndi mtundu wanji wa mota, magwiridwe antchito kapena mawonekedwe omwe mota yanu yabwino iyenera kukhala nayo?

Cholinga cha mndandandawu ndikupereka chidziwitso cha momwe mungasankhire mota yabwino.Tikukhulupirira kuti zidzakuthandizani mukasankha mota.Ndipo, tikukhulupirira kuti zithandiza anthu kuphunzira zoyambira zama injini.

Kusiyana kwa magwiridwe antchito omwe afotokozedwe adzagawidwa m'magawo awiri osiyana motere:

Liwiro/Makokedwe/Kukula/Mtengo ← Zinthu zomwe tikambirana m'mutu uno
Kuthamanga kolondola / kusalala / moyo ndi kusungika / kutulutsa fumbi / kuchita bwino / kutentha
Kutulutsa mphamvu / kugwedezeka ndi phokoso / njira zochotsera mphamvu / malo ogwiritsira ntchito

BLDC brushless mota

1. Zoyembekeza za injini: kuyenda mozungulira
Galimoto nthawi zambiri imatanthawuza mota yomwe imatenga mphamvu zamakina kuchokera ku mphamvu yamagetsi, ndipo nthawi zambiri imatanthawuza mota yomwe imayenda mozungulira.(Palinso injini yamzere yomwe imayenda mowongoka, koma tisiya izi nthawi ino.)

Ndiye, mukufuna kuzungulira kwamtundu wanji?Kodi mukufuna kuti izungulire mwamphamvu ngati kubowola, kapena mukufuna kuti izizungulira mofooka koma pa liwiro lalikulu ngati fani yamagetsi?Poyang'ana pa kusiyana kwa kayendetsedwe kofunikira kozungulira, zinthu ziwiri za liwiro lozungulira ndi torque zimakhala zofunika.

2. Torque
Torque ndi mphamvu yozungulira.Chigawo cha torque ndi N · m, koma ponena za ma motors ang'onoang'ono, mN·m amagwiritsidwa ntchito kawirikawiri.

Makinawa adapangidwa m'njira zosiyanasiyana kuti awonjezere torque.Kutembenuka kwa mawaya a electromagnetic kumapangitsa kuti torque ichuluke.
Chifukwa kuchuluka kwa mapindikidwe kumachepa ndi kukula kokhazikika kwa koyilo, waya wa enamelled wokhala ndi waya wokulirapo umagwiritsidwa ntchito.
Mitundu yathu yamagalimoto yopanda brushless (TEC) yokhala ndi 16 mm, 20 mm ndi 22 mm ndi 24 mm, 28 mm, 36 mm, 42 mm, mitundu 8 ya kukula kwa 60 mm kunja kwake.Popeza kukula kwa coil kumawonjezekanso ndi mainchesi a mota, torque yapamwamba imatha kupezeka.
Maginito amphamvu amagwiritsidwa ntchito kupanga ma torque akuluakulu popanda kusintha kukula kwa injini.Maginito a Neodymium ndi maginito amphamvu kwambiri okhazikika, otsatiridwa ndi maginito a samarium-cobalt.Komabe, ngakhale mutagwiritsa ntchito maginito amphamvu, mphamvu ya maginito imatuluka m'galimotoyo, ndipo mphamvu ya maginito yomwe ikutuluka siidzathandizira pa torque.
Kuti mugwiritse ntchito bwino maginito amphamvu, chinthu chochepa kwambiri chogwira ntchito chotchedwa electromagnetic steel plate chimapangidwa ndi laminated kuti chiwongolere maginito.
Komanso, chifukwa mphamvu ya maginito ya maginito a samarium cobalt imakhala yokhazikika pakusintha kwa kutentha, kugwiritsa ntchito maginito a samarium cobalt kumatha kuyendetsa galimotoyo pamalo omwe ali ndi kusintha kwakukulu kwa kutentha kapena kutentha kwambiri.

3. Liwiro (kusintha)
Chiwerengero cha kusintha kwa injini nthawi zambiri chimatchedwa "liwiro".Ndikuchita kwa kangati injini imazungulira pa nthawi ya unit.Ngakhale "rpm" imagwiritsidwa ntchito ngati kusintha pamphindi, imawonetsedwanso ngati "min-1" mu SI system of units.

Poyerekeza ndi torque, kuwonjezera kuchuluka kwa zosintha sizovuta mwaukadaulo.Ingochepetsani kuchuluka kwa kutembenuka kwa koyilo kuti muwonjezere kuchuluka kwa kutembenuka.Komabe, popeza torque imachepa pomwe kuchuluka kwa zosinthira kumachulukira, ndikofunikira kukwaniritsa zofunikira zonse za torque ndi kusintha.

Kuonjezera apo, ngati mumagwiritsa ntchito mofulumira kwambiri, ndi bwino kugwiritsa ntchito mayendedwe a mpira m'malo mopanda ma bearings.Kuthamanga kwapamwamba, kumapangitsanso kuwonongeka kwakukulu kwa friction, moyo wa injini umakhala wamfupi.
Malingana ndi kulondola kwa shaft, kuthamanga kwapamwamba, kumapangitsanso phokoso ndi mavuto okhudzana ndi kugwedezeka.Chifukwa mota yopanda burashi ilibe burashi kapena chosinthira, imatulutsa phokoso komanso kugwedezeka pang'ono kuposa mota yopukutidwa (yomwe imayika burashi kukhudzana ndi makina ozungulira).
Gawo 3: Kukula
Zikafika pamagalimoto abwino, kukula kwa mota ndi chimodzi mwazinthu zofunika kwambiri pakuchita.Ngakhale liwiro (zosinthika) ndi torque ndizokwanira, ndizopanda pake ngati sizingayikidwe pazomaliza.

Ngati mukungofuna kuonjezera liwiro, mukhoza kuchepetsa chiwerengero cha kutembenuka kwa waya, ngakhale chiwerengero cha kutembenuka ndi chaching'ono, koma pokhapokha ngati pali torque yochepa, sichidzazungulira.Choncho, m'pofunika kupeza njira zowonjezera torque.

Kuphatikiza pa kugwiritsa ntchito maginito amphamvu omwe ali pamwambawa, ndikofunikiranso kuonjeza ntchito yozungulira yomwe imazungulira.Takhala tikulankhula za kuchepetsa kuchuluka kwa ma waya kuti atsimikizire kuchuluka kwa zosinthika, koma izi sizikutanthauza kuti wayayo wavulala momasuka.

Pogwiritsa ntchito mawaya okhuthala m'malo mochepetsa kuchuluka kwa ma windings, madzi ambiri amatha kuyenda komanso torque yayikulu imatha kupezeka ngakhale pa liwiro lomwelo.The spatial coefficient ndi chizindikiro cha momwe waya wavulala mwamphamvu.Kaya ndikuwonjezera kuchuluka kwa matembenuzidwe oonda kapena kuchepetsa kuchuluka kwa matembenuzidwe okhuthala, ndikofunikira kwambiri kuti mupeze torque.

Ambiri, linanena bungwe galimoto zimadalira zinthu ziwiri: chitsulo (maginito) ndi mkuwa (mapiringa).

BLDC brushless motor-2

Nthawi yotumiza: Jul-21-2023