Makina omwe amasintha mphamvu zamagetsi kukhala mphamvu zamakanika amatchedwa mota yamagetsi. Izi ndi zosavuta kupanga, zosavuta kugwiritsa ntchito, zotsika mtengo, zogwira ntchito bwino, zosakonza bwino, komanso zodalirika. Ma mota a induction a magawo atatu ndi amodzi mwa mitundu ndipo ndi osiyana ndi mitundu ina ya mota zamagetsi. Kusiyana kwakukulu ndikuti palibe kulumikizana kwamagetsi kuchokera ku rotor winding kupita ku gwero lililonse lamagetsi. Mphamvu ndi magetsi ofunikira mu rotor circuit zimaperekedwa ndi induction kuchokera ku stator winding. Ichi ndi chifukwa choyimbira ngati induction motor. Nkhaniyi ikufotokoza mota ya induction ya Squirrel cage, yomwe ndi imodzi mwa mitundu ya mota ya induction ya magawo atatu.
Kodi Squirrel Cage Induction Motor ndi chiyani?
Tanthauzo: Mota ya squirrel cage ndi imodzi mwa mitundu ya ma induction motors. Pofuna kupanga kuyenda, imalimbitsa ma electromagnetism. Popeza shaft yotulutsa imalumikizidwa ndi gawo lamkati la rotor lomwe limawoneka ngati khola. Chifukwa chake imatchedwa squirrel cage. Zipewa ziwiri, mwachitsanzo, zozungulira, zimalumikizidwa ndi mipiringidzo ya rotor. Izi zimachitika kutengera EMF, mwachitsanzo, yopangidwa ndi stator. EMF iyi imapangidwanso nyumba yakunja yomwe imapangidwa ndi mapepala achitsulo opangidwa ndi waya. Zigawo ziwiri zazikulu za mtundu uliwonse wa induction motor ndi stator ndi rotor. Khola la squirrel ndi njira yosavuta yokoka mphamvu ya electromagnetic induction. Mota ya induction ya squirrel cage ya 4-pole ikuwonetsedwa pansipa.
Mfundo Yogwirira Ntchito ya Gologolo Lolowetsa Magalimoto
Kugwira ntchito kwa injini ya induction ya squirrel kumadalira mfundo ya electromagnetism. Pamene stator winding iperekedwa ndi thee-phase AC, imapanga mphamvu ya maginito yozungulira (RMF) yomwe ili ndi liwiro lotchedwa synchronous speed. RMF iyi imayambitsa magetsi oyendetsedwa mu mipiringidzo ya rotor. Chifukwa chake, mphamvu yamagetsi imadutsa pamenepo. Chifukwa cha ma current a rotor awa, mphamvu ya maginito yokha imapangidwa yomwe imalumikizana ndi stator field. Tsopano, malinga ndi mfundoyi, munda wa rotor umayamba kutsutsana ndi chifukwa chake. RMF ikagwira mphindi ya rotor, mphamvu ya rotor imatsika kufika pa zero. Ndiye sipadzakhala mphindi yofanana pakati pa rotor ndi RMF.
Chifukwa chake, mphamvu ya zero tangential imawonedwa ndi rotor ndipo imachepa kwakanthawi. Pambuyo pa kuchepa kumeneku mu mphindi ya rotor, mphamvu ya rotor imayambitsidwanso ndi kukonzanso kwa kayendedwe kogwirizana pakati pa RMF ndi rotor. Chifukwa chake mphamvu ya tangential ya rotor yozungulira imabwezeretsedwa ndikuyamba kutsatira RMF. Pankhaniyi, rotor imasunga liwiro lokhazikika, lomwe ndi lochepera liwiro la RMF ndi liwiro logwirizana. Apa, kusiyana pakati pa liwiro la RMF ndi rotor kumayesedwa mu mawonekedwe a kutsetsereka. Kuchuluka komaliza kwa rotor kungapezeke mwa kuchulukitsa kutsetsereka ndi kuchuluka kwa kuperekedwa.
Kapangidwe ka Magalimoto Opangira Chingwe cha Squirrel
Zigawo zomwe zimafunika popanga injini yolowetsa squirrel cage ndi stator, rotor, fan, ma bearing. Stator imakhala ndi makina ndi magetsi ozungulira madigiri 120, okhala ndi chitsulo ndi pakati. Pofuna kupereka njira yochepetsera kusinthasintha komwe kumapangidwa ndi mphamvu ya AC, kuzunguliza kumayikidwa pa chitsulo cholumikizidwa.
Rotor imasintha mphamvu yamagetsi yomwe yapatsidwa kukhala mphamvu yamakina. Shaft, core, mipiringidzo yamkuwa yozungulira ndi mbali za rotor. Pofuna kupewa hysteresis ndi mafunde a eddy omwe akutsogolera ku kutayika kwa mphamvu, rotor imayikidwa laminated. Ndipo ndikulamula kuti ndisatseke, ma conductor amakhotakhota zomwe zimathandizanso kupereka chiŵerengero chabwino cha kusintha.
Fani yolumikizidwa kumbuyo kwa rotor kuti isinthe kutentha imathandiza kusunga kutentha kwa mota pansi pa malire a malire. Kuti injini izungulire bwino, ma bearing amaperekedwa mu mota.
Kusiyana pakati pa Squirrel Cage Induction Motor ndi Slip Ring Induction Motors.
Ubwino
Ubwino wa injini yopangira gologolo ndi awa:
Kapangidwe kosavuta komanso kolimba.
Mtengo wotsika woyambira komanso wosamalira.
Imasunga liwiro losalekeza.
Kuchuluka kwa zinthu zogwiritsidwa ntchito mopitirira muyeso n'kokwera.
Kukonzekera kosavuta koyambira.
Mphamvu yayikulu.
Kutayika kochepa kwa mkuwa wa rotor.
Kuchita bwino kwambiri.
Zoyipa
Zoyipa za injini yolowetsa gologolo m'khola ndi izi:
Mota
Mphamvu yoyambira yapamwamba
Yodziwika kwambiri ndi kusinthasintha kwa magetsi operekera
Mphamvu yochepa pa katundu wopepuka.
Kulamulira liwiro n'kovuta kwambiri
Mphamvu yoyambira yofooka kwambiri chifukwa cha kukana kwake kotsika kwa rotor.
Nthawi yotumizira: Juni-26-2024