Asynchronous lub cev muaj zog - tsim thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm

Asynchronous lub cev muaj zog - tsim thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm
Asynchronous lub cev muaj zog - tsim thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm
Anonim

Asynchronous lub cev muaj zog yog lub tshuab hluav taws xob uas khiav ntawm kev hloov tam sim no. Lub tshuab hluav taws xob no hu ua asynchronous vim tias qhov zaus ntawm qhov txav ntawm lub cav tig - lub rotor, tsis sib npaug ntawm zaus uas cov hlau nplaum rotates, uas yog tsim los ntawm kev sib hloov tam sim no los ntawm winding ntawm lub immovable. ib feem ntawm lub cav - lub stator. Lub cev muaj zog induction yog qhov feem ntau ntawm txhua lub tshuab hluav taws xob, nws tau txais qhov nrov tshaj plaws nyob rau hauv tag nrho cov kev lag luam, mechanical engineering thiab ntau dua.

asynchronous lub cev muaj zog
asynchronous lub cev muaj zog

Asynchronous lub cev muaj zog hauv nws cov qauv tsim yuav tsum muaj ob qhov tseem ceeb tshaj plaws: lub rotor thiab stator. Cov khoom no tau sib cais los ntawm qhov sib txawv me me. Lub active qhov chaw ntawm lub cav kuj tseem hu ua windings thiab magnetic circuit. Cov khoom siv ua kom txias, rotor tig, lub zog thiab nruj.

Lub stator yog cov cam khwb cia hlau lossis cam khwb cia hlau lub cev ntawm cov duab cylindrical. Nyob rau hauv lub tsev stator muaj ib tug sib nqus Circuit Court, rau hauv tshwj xeeb txiav grooves uasstator winding ntsia. Ob qhov kawg ntawm lub winding yog coj tawm mus rau lub thawv davhlau ya nyob twg thiab txuas nrog los ntawm daim duab peb sab lossis lub hnub qub. Los ntawm qhov kawg, lub tsev stator kaw tag nrho los ntawm bearings. Cov bearings ntawm lub rotor ncej yog nias rau hauv cov bearings. Lub rotor ntawm lub induction lub cev muaj zog yog ib tug hlau ncej, uas ib tug sib nqus Circuit Court kuj nias.

squirrel-cage induction motor
squirrel-cage induction motor

Tus qauv tsim, cov rotors tuaj yeem muab faib ua ob pawg loj. Lub cav nws tus kheej yuav dais nws lub npe raws li tus qauv tsim ntawm lub rotor. Squirrel-cage induction motor yog thawj hom. Kuj muaj qhov thib ob. Qhov no yog lub asynchronous lub cev muaj zog nrog ib theem rotor. Aluminium rods yog poured rau hauv grooves ntawm lub cav nrog ib tug squirrel tawb rotor (nws tseem hu ua "squirrel tawb" vim qhov zoo sib xws ntawm cov tsos ntawm xws li ib tug rotor nrog ib tug squirrel tawb) thiab kaw lawv nyob rau hauv lub kawg. Lub rotor theem muaj peb windings muaj, uas yog interconnected rau hauv lub hnub qub. Qhov kawg ntawm cov windings yog txuas nrog cov rings tsau rau ntawm ncej. Thaum pib lub cav, cov txhuam tshwj xeeb ruaj yog nias tawm tsam cov nplhaib. Kev tiv thaiv yog txuas nrog cov txhuam hniav no, tsim los txo qhov pib tam sim no thiab smoothly pib lub induction lub cev muaj zog. Nyob rau hauv txhua rooj plaub, peb-theem voltage yog siv rau lub stator winding.

asynchronous lub cev muaj zog nrog theem rotor
asynchronous lub cev muaj zog nrog theem rotor

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm txhua lub cev muaj zog yog qhov yooj yim. Nws yog raws li txoj cai nto moo ntawm electromagnetic induction. Lub magnetic teb ntawm stator, tsim los ntawm peb-theem voltage system, rotates nyob rau hauv lub zog ntawm ib tug tam sim no dhau los ntawm winding.stator. Qhov no magnetic teb traverses winding thiab conductors ntawm lub rotor winding. Los ntawm qhov no, lub zog electromotive (EMF) yog tsim nyob rau hauv lub rotor winding raws li txoj cai ntawm electromagnetic induction. Qhov EMF no ua rau muaj kev hloov pauv tam sim no rau hauv lub rotor winding. Lub rotor tam sim no nws tus kheej tom qab tsim ib qho chaw sib nqus uas cuam tshuam nrog stator magnetic teb. Cov txheej txheem no pib qhov kev sib hloov ntawm lub rotor hauv magnetic teb.

Feem ntau, txhawm rau txo qhov pib tam sim no (thiab nws tuaj yeem ua tau ntau zaus ntau dua li qhov kev khiav hauj lwm tam sim no rau lub cev muaj zog asynchronous), pib capacitors tau siv, txuas nrog hauv cov koob mus rau qhov pib winding. Tom qab pib, lub capacitor no kaw, ua kom qhov kev ua haujlwm tsis hloov.

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