Mafi girman fasalin injinan asynchronous shine cewa akwai bambanci tsakanin ainihin saurin motar da saurin filin maganadisu, wato akwai zamewa; idan aka kwatanta da sauran sigogi na aikin motar, zamewar motar ita ce mafi sauƙi don samun, kuma kowane mai amfani da motar zai iya amfani da wasu sauƙi Ana ƙididdige aikin.
A cikin bayanin ma'auni na aikin motar, ƙimar zamewa shine ingantacciyar ma'auni mai mahimmancin aiki, wanda ke da alaƙa da adadin zamewar dangane da saurin aiki tare. na.Misali, injin mitar wutar lantarki 2-pole tare da ƙimar zamewa na 1.8% da injin sandar sandar igiya 12 suna da babban bambanci a ainihin zamewar gaske. Lokacin da adadin zamewa yayi daidai da 1.8%, zamewar mitar wutar lantarki 2-pole asynchronous motor shine 3000 × 1.8% = 54 rpm, zamewar injin mitar ƙarfin sandar igiya 12 shine 500 × 1.8% = 9 rpm.Hakazalika, ga injinan da ke da sanduna daban-daban tare da zamewa iri ɗaya, madaidaicin madaidaicin madaidaicin ma zai bambanta sosai.
Daga nazarin kwatancen ra'ayoyin zamewa da zamewa, zamewa ƙima ce cikakkiya, wato, cikakken bambanci tsakanin ainihin gudun da saurin filin maganadisu na aiki tare, kuma naúrar tana rev/min; yayin da zamewa shine bambanci tsakanin zamewar da saurin aiki tare. kashi.
Don haka, saurin aiki tare da ainihin saurin motar yakamata a san lokacin da ake ƙididdige zamewar.Ƙididdiga na saurin haɗin gwiwa na motar yana dogara ne akan ma'auni n=60f/p (inda f shine ƙimar mitar motar, kuma p shine adadin nau'i-nau'i na mashin); don haka, saurin daidaitawa wanda ya dace da mitar wutar lantarki 2, 4, 6, 8, 10 da 12 Gudun shine 3000, 1500, 1000, 750, 600 da 500 rpm.
Za a iya gano ainihin saurin motar ta hanyar tachometer, kuma ana ƙididdige shi gwargwadon adadin juyi a minti daya.Matsakaicin saurin injin asynchronous bai kai saurin daidaitawa ba, kuma bambanci tsakanin saurin aiki tare da ainihin saurin shi ne zamewar injin asynchronous, kuma naúrar tana rev/min.
Akwai nau'ikan tachometers da yawa, kuma na'urar tachometer na lantarki wani ra'ayi ne na gabaɗaya: kayan aikin auna saurin juyawa da aka ƙera bisa ga fasahar lantarki ta zamani gabaɗaya suna da firikwensin firikwensin da nuni, wasu kuma suna da fitarwa da sarrafawa.Daban-daban da fasahar auna saurin saurin hoto na gargajiya, inductive tachometer baya buƙatar shigar da firikwensin hoto, babu tsayin igiya, kuma ana iya amfani dashi a cikin masana'antar famfo ruwa da sauran masana'antu inda yana da wahala a shigar da firikwensin.
Lokacin aikawa: Maris-30-2023