Fasaha ta zamani | sabuwar masana'antu | Janairu 15, 2025
A aikace-aikacen masana'antu da kasuwanci, ana amfani da injinan zamiya sosai saboda ingancinsu da ƙarfin fitarwa mai yawa. Duk da haka, ƙididdige ƙarfin rotor na injin zamiya ba aiki ne mai sauƙi ba, wanda ke buƙatar mu fahimci ƙa'idodi da sigogi masu alaƙa da ke bayansa. Wannan labarin zai gabatar da cikakken bayani kan yadda ake ƙididdige ƙarfin rotor na injin zamiya daidai don taimaka muku inganta aikin motar da inganci.
1. Matakai na asali don ƙididdige ƙarfin lantarki na rotor
(I) Ƙayyade ƙarfin lantarki mai ƙima na injin
Ƙarfin wutar lantarki mai ƙima na motar shine ƙarfin lantarki na yau da kullun don ƙira da aiki, wanda za'a iya samu cikin sauƙi a cikin ƙayyadaddun fasaha na motar. Wannan ƙimar ita ce ginshiƙin lissafin da ke gaba, kamar harsashin ginin hawa mai tsayi, yana samar da mahimman bayanai na asali don dukkan tsarin lissafi. Misali, motar zamewa a cikin na'urar masana'antu tana da ƙarfin lantarki mai ƙima na 380 V wanda aka yiwa alama a sarari a cikin littafin fasaha, wanda shine wurin farawa don lissafinmu.
(II) Auna juriyar rotor Lokacin da injin ya daina aiki, yi amfani da ohmmeter don auna juriyar naɗewar rotor. Juriyar rotor tana ɗaya daga cikin muhimman abubuwan da ke shafar ƙarfin rotor, kuma daidaiton ƙimarsa yana da alaƙa kai tsaye da amincin sakamakon lissafi na ƙarshe. Idan aka yi la'akari da cewa juriyar rotor da muka auna shine 0.4Ω, wannan bayanan zai taka muhimmiyar rawa a cikin lissafin da ke tafe.
(III) Lissafa ƙarfin wutar lantarki na rotor Ana iya samun ƙarfin wutar lantarki na rotor ta hanyar ninka ƙarfin wutar lantarki na motar ta hanyar juriyar rotor. Idan aka ɗauki ƙarfin wutar lantarki na 380 V da juriyar rotor na 0.4Ω da aka ambata a sama a matsayin misali, ƙarfin wutar lantarki na rotor = 380 V × 0.4 = 152 V.
2. Cikakken bincike kan dabarar ƙarfin lantarki na rotor
(I) Tsarin da mahimmancin dabarar
Tsarin ƙarfin lantarki na rotor wata magana ce ta lissafi wadda ke la'akari da abubuwa da yawa. An samo ta ne bisa ga ƙa'idodin electromagnetism na asali. Daga cikinsu, ƙarfin lantarki na stator, zamewa da halayen naɗewar mota sune manyan abubuwan da ke tasiri. Fahimtar wannan dabarar daidai tana ba injiniyoyi damar yin hasashen yadda motar ke aiki a ƙarƙashin yanayi daban-daban na kaya, kamar samun maɓalli don buɗe asirin aikin motar.
(II) Tsarin da aka samo da kuma amfani da shi a aikace Dangane da ka'idodin na'urorin lantarki
Tsarin samowar tsarin ƙarfin lantarki na rotor yana da tsauri da rikitarwa. Yana nuna alaƙar da ke tsakanin filin maganaɗisu da wutar lantarki a cikin motar, kuma yana da mahimmanci a fannin sarrafa mota da ƙira. A aikace-aikace, tare da taimakon ƙwararren mai lissafin ƙarfin lantarki na rotor, injiniyoyi suna buƙatar shigar da sigogi masu mahimmanci kawai kamar mitar samar da wutar lantarki, adadin sandunan mota da zamewa don samun ƙimar ƙarfin lantarki da ake buƙata cikin sauri don yanayi daban-daban na aiki. Wannan ba wai kawai yana inganta ingancin aiki ba ne, har ma yana tabbatar da cewa motar tana aiki cikin kwanciyar hankali a cikin mafi kyawun kewayon aiki.
3. Lissafin halin yanzu na Rotor da inganta aikin injin
(I) Cikakken bayani game da dabarar wutar lantarki ta rotor
Tsarin shine, It=Vt/Zt, inda Vt shine ƙarfin rotor kuma Zt shine ƙarfin rotor. Lissafin ƙarfin rotor ya ƙunshi abubuwa kamar ƙarfin stator da zamewa, wanda ke buƙatar ƙwararrun lantarki su ƙware kuma su yi amfani da waɗannan dabarun yadda ya kamata domin tantance aikin injin daidai.
(II) Muhimmancin lissafin wutar lantarki ta rotor
Lissafin wutar lantarki ta rotor yana da mahimmanci ga injiniyoyi ta hanyoyi da yawa. A gefe guda, yana taimakawa wajen kimanta ƙarfin wutar lantarki na motar, yana bawa injiniyoyi damar yin hasashen canje-canjen halayen motar daidai a ƙarƙashin ƙarfin aiki daban-daban. Misali, a lokacin fara motar, ta hanyar sa ido kan canje-canjen wutar lantarki ta rotor, injiniyoyi za su iya tantance ko motar tana farawa yadda ya kamata da kuma ko akwai matsaloli kamar wuce gona da iri. A gefe guda kuma, ta hanyar sa ido da kuma nazarin wutar lantarki ta rotor, yana yiwuwa a sami ingantaccen iko na motar, da kuma hana matsaloli kamar yawan zafi a cikin motar, rashin inganci ko gazawar injiniya, ta haka ne za a tsawaita rayuwar motar da kuma inganta ingancin samarwa.
4. Muhimmin rawar da zamewa ke takawa a lissafin ƙarfin lantarki na rotor
(I) Ma'anar da lissafin zamewar
Zamewa ana bayyana shi a matsayin bambancin gudu tsakanin filin maganadisu mai juyawa da na'urar rotor, wanda aka bayyana a matsayin kashi na saurin daidaitawaTsarin shine S=(N8-Nt)/Ns, inda s shine zamewa, N8 shine saurin daidaitawa, kuma Nt shine saurin rotor.
Misali, a cikin wani takamaiman yanayin aiki na motar, idan saurin daidaitawa shine 1500 rpm kuma saurin rotor shine 1440 rpm, zamewar zamewarS=(1500-1440)/1500=0.04, don haka 4%.
(II) Alaƙa tsakanin zamewa da ingancin rotor
Akwai dangantaka ta kud da kud tsakanin zamewa da ingancin rotor. Yawanci, rotor yana buƙatar wani adadin zamewa don samar da karfin juyi da kuma cimma aikin motar na yau da kullun. Duk da haka, zamewa mai tsayi zai haifar da ƙaruwar asarar juriya da raguwar fitarwa ta injiniya, wanda zai yi tasiri sosai ga ingancin motar. Akasin haka, zamewa mai ƙasa na iya sa motar ta yi aiki kusa da yanayin daidaitawa, amma zai raunana ikon sarrafa motar da ƙarfin fitarwa na karfin juyi. Saboda haka, a cikin tsarin ƙira da aiki na motar, ƙididdigar zamewa mai kyau da daidaitawa mai ma'ana na sigogi masu alaƙa suna da mahimmanci don amfani da dabarar ƙarfin juyi da tabbatar da ingantaccen aiki da kwanciyar hankali na motar a ƙarƙashin nau'ikan kaya daban-daban.
V. Tsarin tasirin juriyar rotor akan ingancin mota
(I) Yanayi da tasirin juriyar rotor
Juriyar Rotor tana nufin juriyar da'irar rotor ke yi ga kwararar wutar lantarki. Darajarta tana da tasiri mai mahimmanci akan ƙarfin farawa, daidaita saurin gudu da ingancin motar. Babban juriyar rotor yana taimakawa wajen inganta ƙarfin farawa na motar da kuma ba wa motar damar farawa cikin sauƙi a ƙarƙashin nauyi mai yawa. Duk da haka, a lokacin aiki na yau da kullun na motar, juriyar rotor mai yawa zai haifar da ƙaruwar asarar kuzari, ta haka rage ingancin aikin motar.
(II) Tsarin juriya na Rotor da aikace-aikacen gano lahani
Tsarin juriyar rotor (wanda yawanci ake bayyana shi azaman Rt) yana la'akari da abubuwa kamar halayen jiki na kayan rotor, yanayin rotor da zafin jiki. Daidaita lissafin juriyar rotor yana da mahimmanci don amfani da dabarar ƙarfin wutar lantarki ta rotor. A fannin gano motar da kuma kula da rigakafi, ta hanyar sa ido kan canje-canje a cikin juriyar rotor, za a iya gano matsaloli kamar lalacewa mara daidaituwa, gajeren da'ira ko zafi fiye da kima cikin lokaci. Misali, idan aka ga juriyar rotor ta ƙaru ba zato ba tsammani, yana iya nufin cewa akwai gajeren da'ira na gida ko rashin hulɗa mara kyau a cikin naɗaɗɗen rotor. Sannan ma'aikatan kulawa za su iya ɗaukar matakan kulawa da aka yi niyya don hana faruwar gazawar motar yadda ya kamata, tsawaita rayuwar sabis na motar, da kuma tabbatar da ci gaba da kwanciyar hankali na samarwa.
VI. Misalan lissafi da ƙwarewar amfani a cikin yanayi na ainihi
(I) Misalin lissafi na ainihi
A ce akwai injin zamewa mai ƙarfin stator na 440 V, juriyar rotor na 0.35Ω, da zamewar 0.03. Da farko, bisa ga dabarar ƙarfin rotor Vt=s*Vs, ana iya samun ƙarfin rotor Vt=0.03*440=13.2 V. Sannan, ta amfani da dabarar halin yanzu na rotor It=Vt/Zt (idan aka yi la'akari da cewa ƙarfin rotor Zt shine 0.5Ω), ana iya ƙididdige halin yanzu na rotor It=13.2/0.5=26.4 A.
(II) Kwarewar amfani da matakan kariya a aikace-aikace
Domin tabbatar da daidaito da ingancin sakamakon lissafi, ya kamata a lura da waɗannan abubuwan: Na farko, yi amfani da kayan aikin aunawa masu inganci don samun sigogin mota. Misali, lokacin auna juriyar rotor da ohmmeter, ya kamata a zaɓi kayan aiki mai ƙuduri mai girma da ƙaramin kuskure; na biyu, lokacin shigar da sigogi don lissafi, tabbatar da cewa an haɗa raka'o'in sigogi don guje wa karkacewa a cikin sakamakon lissafi saboda kurakuran juyawa naúrar; na uku, bincika tare da ainihin yanayin aiki da yanayin aiki na motar, misali, idan aka yi la'akari da tasirin zafin jiki akan juriyar rotor, a cikin yanayin zafi mai yawa, juriyar rotor na iya ƙaruwa, kuma sakamakon lissafi yana buƙatar gyara yadda ya kamata.
Ta hanyar gabatarwa mai zurfi da aka ambata a sama, ina ganin kuna da cikakken fahimtar hanyar lissafi ta ƙarfin lantarki na rotor na motar zamewa da kuma muhimmancinsa a cikin inganta aikin motar. A zahiri, bin matakan lissafi da kuma la'akari da tasirin abubuwa daban-daban zai taimaka muku wajen ba da cikakken amfani ga fa'idodin aikin injin zamewa, inganta ingancin samar da kayayyaki a masana'antu da kuma rage farashin kula da kayan aiki.
Me ya kamata a kula da shi yayin lissafin ƙarfin rotor na injunan zamewa?
- a. Daidaiton bayanai
- b. Fahimtar tsari da amfaninsa
- c. Abubuwan da suka shafi muhalli da yanayin aiki
- d. Tsarin lissafi da kayan aiki
Lokacin Saƙo: Janairu-15-2025