Txhawm rau txhim kho qhov zoo ntawm lub cev muaj zog, nyob rau xyoo tas los no, lub suab nrov ntawm lub cev muaj zog tau suav nrog hauv ib qho ntawm cov kev ntsuas kev ntsuas zoo, tshwj xeeb tshaj yog rau lub cev muaj zog ua haujlwm ib puag ncig thiab tib neeg kev sib cuag ze rau qhov xwm txheej, lub suab nrov ntawm lub cev muaj zog tau dhau los ua ib qho kev ua haujlwm zoo. kev ntsuas tseem ceeb heev.
Yuav kom tswj tau lubasynchronous lub cev muaj zogsuab nrov, ntxiv rau qhov tsim ntawm lub stator thiab rotor qhov nrog qhov tsim nyog xaiv ntawm stator thiab rotor qhov nrog qhov tshwj xeeb ntawm qhov slant tuaj yeem siv txhawm rau txhawm rau txo cov suab nrov ntawm lub tshuab hluav taws xob. Tab sis raws nraim qhov ntau npaum li cas txoj kab nqes yog qhov tsim nyog, kev sim ntxiv yog xav tau los txheeb xyuas.
Feem ntau, rotor qhov nqes hav ntawm asynchronous motors tuaj yeem raug coj los ua ib qho stator hniav pitch, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua. Txawm li cas los xij, txhawm rau txhawm rau txhim kho lub suab nrov ntawm lub cev muaj zog, nws yog ib qho tsim nyog yuav tsum tau tshawb nrhiav qhov pom kev zoo ntawm txoj kab nqes, uas yuav tsum muaj kev suav ntau thiab kev txheeb xyuas.
Kev soj ntsuam los ntawm kev tsim cov ntsiab lus ntawm kev pom, ncaj nraim lub cev muaj zog ntau lawm thiab kev ua haujlwm kom yooj yim, tab sis thaum tsim nyog, nws yuav tsum yog qhov stator qhov lossis rotor qhov torsion. Lub stator qhov torsion yog qhov nyuaj, thiab yog li ntawd, feem ntau, rotor qhov tilting. Rotor qhov torsion feem ntau dhau los ntawm kev ua haujlwm torsion ntawm txoj hauv kev tseem ceeb kom ua tiav, cov khoom lag luam siab dua, kev siv cov kauv xuas nrig ntaus, hauv rotor core manufacturing txheej txheem kom ua tiav.
Electromagnetic nrov ua rau thiab zam kev ntsuas
Lub suab nrov ntawm lub cev muaj zog ib txwm yog ib qho teeb meem nyuaj los daws, nws yog tsim los ntawm electromagnetic, mechanical, cua tshuab peb lub laj thawj. Electromagnetic nrov nyob rau hauv lub asynchronous lub cev muaj zog yog vim lub stator thiab rotor tam sim no nyob rau hauv cov huab cua sib txawv tsim nyob rau hauv lub harmonic magnetic teb kev sib cuam tshuam thiab electromagnetic quab yuam yoj tshwm sim los ntawm lub core yoke kev co, yuam cov nyob ib ncig ntawm.huab cua vibrationthiab ua. Qhov laj thawj tseem ceeb yog vim qhov tsis raug cai, stator thiab rotor eccentricity los yog me me dhau qhov sib txawv ntawm huab cua.
Lub suab nrov electromagnetic yog tshwm sim los ntawm kev sib nqus sib nqus uas ua rau muaj kev hloov pauv hauv lub sijhawm thiab qhov chaw thiab tau ua los ntawm ntau qhov chaw ntawm lub cev muaj zog. Yog li ntawd, rau asynchronous motors, qhov ua rau ntawm electromagnetic nrov tsim muaj xws li:
● Radial quab yuam tsis nyob rau hauv qhov sib txawv ntawm cov huab cua sib nqus ua rau radial deformation thiab lub sij hawm vibration ntawm stator thiab rotor.
● Radial quab yuam nthwv dej ntawm siab sib haum xeeb nyob rau hauv cov huab cua sib nqus magnetic teb ua rau ntawm stator thiab rotor cores, ua rau lawv undergo radial deformation thiab periodic vibration.
● Lub deformation ntawm qhov sib txawv ntawm kev sib haum xeeb ntawm cov tub ntxhais stator muaj qhov sib txawv ntawm qhov sib txawv, thiab cov resonance tshwm sim thaum lub zaus ntawm lub zog radial quab yuam nyob ze los yog sib npaug rau ib qho ntawm cov frequencies ntawm cov tub ntxhais.
Lub stator deformation ua rau cov huab cua nyob ib puag ncig vibrate, thiab feem ntau ntawm cov suab nrov electromagnetic yog lub suab nrov.
Thaum cov tub ntxhais yog saturated, qhov thib peb harmonic tivthaiv yog nce, thiab electromagnetic suab nrov.
Lub stator thiab rotor qhov qhib tag nrho, thiab muaj ntau "qhov qhib qhov nthwv dej" tsim nyob rau hauv qhov kev txiav txim ntawm qhov muaj peev xwm nthwv dej hauv huab cua sib nqus, thiab qhov sib txawv ntawm huab cua me dua, qhov dav ntawm qhov qhib, qhov loj dua lawv qhov amplitude.
Txhawm rau zam cov teeb meem, chaw ua haujlwm hauv cov khoom tsim ntawm cov khoom lag luam los ntawm kev txhim kho hom kev txhim kho, kev xaiv cov kev sib txuam uas tsim nyog, nce tus naj npawb ntawm cov stator punching slots, txo cov harmonic faib coefficient ntawm stator windings, tsim nyog ua ntawm stator-rotor cua kis lub cev muaj zog, xaiv lub stator thiab rotor zawj nrog lub rotor slant zawj, kev siv lub rotor, thiab lwm yam kev ntsuas.
Post lub sij hawm: Jun-14-2024
