Ka'idar aiki da rarrabuwa na bearings na maganadisu

 

Ɗaurin maganaɗisuZa a iya raba tsarin zuwa rukuni uku bisa ga ka'idodin aikinsu: Bearing na Magnetic mai aiki, Bearing na Magnetic mai wucewa, da kuma Bearing na Magnetic mai haɗaka.

 

Matsayin maganadisu mai aiki

 

Bearings masu aiki suna amfani da ƙarfin lantarki mai sarrafawa don cire shaft mai juyawa, wanda galibi ya ƙunshi rotors, solenoids, firikwensin, masu sarrafawa, da amplifiers na wutar lantarki. Ana ɗora solenoids ɗin a kan stator wanda aka rataye a cikin filin maganadisu da electromagnets ɗin da aka sanya a cikin similar radial suka samar, kowannensu yana da na'urori masu auna sigina ɗaya ko fiye don ci gaba da lura da canje-canje a matsayin shaft. Fitowar sigina daga firikwensin, tare da taimakon tsarin sarrafa lantarki, yana gyara wutar lantarki ta hanyar electromagnet, don sarrafa jan hankalin electromagnet, don haka shaft mai juyawa yana gudana cikin yanayi mai kyau da daidaito, kuma ya cimma wasu buƙatun daidaito.

 

Ana iya raba bearings masu aiki na maganadisu zuwa iko na yanzu da iko na wutar lantarki bisa ga hanyoyin sarrafawa daban-daban, kuma ana iya raba su zuwa bearings masu maganadisu na radial da bearings masu maganadisu na axial bisa ga hanyoyin tallafi daban-daban. A halin yanzu, daga cikin bearings masu aiki na maganadisu, wanda aka fi amfani da shi shine bearings masu sarrafawa na DC.

 

Bangaren injina na bearing mai aiki gabaɗaya ya ƙunshi bearing na radial da bearing na axial, kuma bearing na radial ya ƙunshi stator (electromagnet) da rotor; Bearings na axial sun ƙunshi stator (electromagnet) da farantin turawa.

 

Saboda ƙarfin ƙarfin maganadisu mai aiki yana da fa'idodin matsayin rotor, ana iya tantance ƙarfin ɗaukar nauyi da damping ta hanyar tsarin sarrafawa, shi ne mafi yawan amfani da shi a fannin ƙarfin maganadisu, kuma binciken ƙarfin maganadisu mai aiki koyaushe shine abin da binciken fasahar maganadisu mai aiki ya mayar da hankali a kai. Bayan shekaru da yawa na aiki tuƙuru, ka'idar ƙira da hanyoyinta sun ƙara girma.

 

Bearing mai aiki da maganadisu

 

A matsayin nau'in bearing na maganadisu, bearing na maganadisu mai wucewa yana da nasa fa'idodi na musamman, yana da ƙanƙanta a girma, babu amfani da wutar lantarki, kuma yana da sauƙin tsari. Babban bambanci tsakanin bearings na maganadisu mai wucewa da bearings na maganadisu mai aiki shine na farko ba shi da tsarin sarrafa lantarki mai aiki, amma yana amfani da halayen filin maganadisu don cire shaft mai juyawa. A halin yanzu, bearings na maganadisu masu wucewa da aka fi amfani da su sune bearings na maganadisu na dindindin waɗanda suka ƙunshi maganadisu na dindindin. Bearings na maganadisu na dindindin za a iya raba su zuwa nau'i biyu: nau'in tunzura da nau'in tsotsa.

 

Ana iya amfani da bearings na magnet na dindindin marasa aiki a matsayin bearings na radial da kuma bearings na turawa (bearings na axial), waɗanda duka biyun na iya zama tsotsa ko turewa. Dangane da alkiblar maganadisu da kuma matsayin kusanci na zoben maganadisu, bearings na magnet na dindindin suna da nau'ikan tsarin da'irar maganadisu iri-iri. Amma akwai tsare-tsare guda biyu na asali.

 

Wani nau'in bearing na maganadisu mai aiki ba tare da izini ba ya dogara ne akan ƙarfin tsotsa, wanda ke aiki tsakanin sassan maganadisu masu laushi da aka haɗa da magnetized. Lokacin da ɓangaren rotor ke motsawa ta hanyar radial, tasirin tsotsa yana fitowa ne daga canjin magnetoresistance, don haka ana kiransa da "bearing na magnetoresistive". Ana iya tsara wannan nau'in bearing ta yadda ɓangaren maganadisu na dindindin ba zai juya ba, kuma ɓangaren ƙarfe mai laushi kawai ke juyawa, don haka tsarin ya sami kwanciyar hankali mafi kyau.

 

Haɗuwar tasirin daidaita bearings na rashin son rai da kuma solenoids masu aiki yana haifar da tsarin ɗaukar maganadisu tare da ƙarancin amfani da makamashi.

 

Bearings na maganadisu masu hade

 

Ana samar da bearings na maganadisu masu haɗaka bisa ga bearings na maganadisu masu aiki, bearings na maganadisu masu aiki da kuma wasu wasu kayan tallafi da tsarin daidaitawa - wani nau'in tsarin bearings na maganadisu masu haɗin gwiwa. Yana la'akari da cikakkun halaye na bearings na maganadisu masu aiki da bearings na maganadisu masu aiki.

 

Tsarin haɗin magnetic bearing shine amfani da filin maganadisu da magnet na dindindin ya samar don maye gurbin filin maganadisu na tsaye na electromagnet, wanda ba wai kawai zai iya rage yawan amfani da wutar lantarki na amplifier ba, har ma zai iya rage yawan juyawar ampere na electromagnet da rabi, rage girman magnetic bearing, da kuma inganta ƙarfin ɗaukar kaya.

 

Tunda filin maganadisu na bias yana samuwa ne ta hanyar maganadisu na dindindin kuma filin maganadisu mai sarrafawa yana samuwa ta hanyar lantarki, bearings na magnetic na dindindin suna da fa'idodi masu zuwa:

 

1) Ana amfani da maganadisu na dindindin don samar da filin maganadisu na bias static, kuma electromagnet yana ba da filin maganadisu na sarrafawa kawai don daidaita kaya ko tsangwama na waje, wanda zai iya guje wa asarar wutar lantarki da ke haifar da kwararar wutar lantarki ta tsarin da kuma rage dumama na'urar.

 

2) Adadin juyawar da ake buƙata don amfani da na'urar lantarki ta na'urar maganadisu mai haɗaka ya fi ƙanƙanta fiye da na na'urar maganadisu mai aiki, wanda hakan ke taimakawa wajen rage girman na'urar maganadisu da kuma adana kayan aiki. Wannan nau'in na'urar tana da fa'idodin ƙaramin girma, nauyi mai sauƙi da inganci mai yawa, kuma ya dace da ƙananan ayyuka da ƙananan ayyuka.