Cov nyhuv ntawm Iron Core Stress ntawm kev ua tau zoo ntawm Permanent Magnet Motors

Cov nyhuv ntawm Iron Core Stress ntawm kev ua tau zoo ntawmPermanent Magnet Motors

Txoj kev loj hlob sai ntawm kev lag luam tau txhawb nqa kev tshaj lij kev lag luam ntawm kev lag luam hlau nplaum ruaj khov, muab cov kev xav tau siab dua rau kev ua haujlwm ntawm lub cev muaj zog, cov qauv kev ua haujlwm, thiab cov khoom lag luam ruaj khov. Txhawm rau kom cov hlau nplaum ruaj khov rau kev txhim kho nyob rau hauv daim ntawv thov dav dav, nws yog ib qho tsim nyog los ntxiv dag zog rau kev ua tau zoo ntawm txhua yam, kom tag nrho cov txiaj ntsig zoo thiab kev ua haujlwm ntawm lub cev muaj zog tuaj yeem ncav cuag qib siab dua.

Rau cov hlau nplaum ruaj khov motors, cov tub ntxhais hlau yog ib qho tseem ceeb heev nyob rau hauv lub cev muaj zog. Rau kev xaiv cov khoom tseem ceeb ntawm cov hlau, nws yog ib qho tsim nyog yuav tau txiav txim siab tag nrho seb qhov sib nqus conductivity tuaj yeem ua tau raws li qhov xav tau ua haujlwm ntawm lub tshuab hlau nplaum mus tas li. Feem ntau, Hluav taws xob cov hlau raug xaiv los ua cov khoom tseem ceeb rau cov hlau nplaum ruaj khov, thiab lub ntsiab yog vim li cas cov hlau hluav taws xob muaj cov hlau nplaum zoo.

Kev xaiv cov ntaub ntawv tseem ceeb ntawm lub cev muaj zog muaj feem cuam tshuam rau tag nrho kev ua tau zoo thiab kev tswj tus nqi ntawm cov hlau nplaum mus tas li. Thaum lub sij hawm tsim, sib dhos, thiab kev ua haujlwm ntawm cov hlau nplaum ruaj khov, qee qhov kev ntxhov siab yuav tsim rau ntawm cov tub ntxhais. Txawm li cas los xij, qhov muaj kev ntxhov siab yuav cuam tshuam ncaj qha rau cov hlau nplaum hluav taws xob ntawm cov ntawv hlau hluav taws xob, ua rau cov hlau nplaum hluav taws xob poob mus rau qhov sib txawv, yog li qhov kev ua tau zoo ntawm cov hlau nplaum lub cev muaj zog yuav poob qis, thiab yuav ua rau lub cev tsis muaj zog.

Hauv kev tsim thiab tsim cov hlau nplaum ruaj khov motors, cov kev xav tau rau kev xaiv thiab kev siv cov ntaub ntawv tau txais ntau dua thiab siab dua, txawm tias ze rau qhov txwv tus qauv thiab qib ntawm cov khoom siv. Raws li cov khoom tseem ceeb ntawm cov hlau nplaum tas mus li, Hluav taws xob cov hlau yuav tsum ua kom tau raws li qhov yuav tsum tau muaj qhov tseeb hauv cov ntaub ntawv siv thev naus laus zis thiab kev suav cov hlau poob kom tau raws li qhov xav tau tiag tiag.

Cov txheej txheem tsim lub cev muaj zog siv los suav cov yam ntxwv ntawm cov khoom siv hluav taws xob ntawm Cov Hluav Taws Xob Hluav Taws Xob yog qhov tsis raug, vim tias cov qauv no feem ntau yog rau cov xwm txheej, thiab cov txiaj ntsig suav yuav muaj qhov sib txawv loj. Yog li ntawd, yuav tsum muaj ib txoj kev xam tshiab kom raug xam qhov sib nqus conductivity thiab hlau poob ntawm Hluav taws xob cov hlau nyob rau hauv kev ntxhov siab nyob rau hauv lub cheeb tsam, thiaj li hais tias daim ntawv thov theem ntawm hlau core cov ntaub ntawv yog siab dua, thiab cov Performance index xws li cov efficiency ntawm mus tas li hlau nplaum motors mus txog. qib siab dua.

Zheng Yong thiab lwm tus kws tshawb fawb tau tsom mus rau qhov cuam tshuam ntawm cov tub ntxhais kev ntxhov siab ntawm kev ua haujlwm ntawm cov hlau nplaum ruaj khov, thiab kev sib koom ua ke kev soj ntsuam los tshawb txog cov txheej txheem cuam tshuam ntawm kev ntxhov siab hlau nplaum thiab kev ntxhov siab hlau tsis ua haujlwm ntawm cov hlau nplaum lub cev muaj zog cov ntaub ntawv tseem ceeb. Kev ntxhov siab ntawm cov tub ntxhais hlau ntawm lub tshuab hlau nplaum ruaj khov nyob rau hauv kev ua haujlwm yog cuam tshuam los ntawm ntau qhov chaw ntawm kev ntxhov siab, thiab txhua qhov kev ntxhov siab nthuav tawm ntau yam sib txawv kiag li.

Los ntawm qhov kev xav ntawm daim ntawv kev ntxhov siab ntawm stator core ntawm cov hlau nplaum ruaj khov motors, cov peev txheej ntawm nws cov tsim muaj xws li xuas nrig ntaus, riveting, lamination, cuam tshuam los ua ke ntawm lub casing, thiab lwm yam. qhov tseem ceeb tshaj plaws ntawm cheeb tsam. Rau lub rotor ntawm lub cev muaj zog hlau nplaum ruaj khov, lub ntsiab ntawm kev ntxhov siab nws dais muaj xws li thermal stress, centrifugal force, electromagnetic force, thiab lwm yam tseem ntsia tau rau ntawm lub rotor core.

Yog li ntawd, centrifugal kev nyuaj siab yog lub hauv paus ntawm kev ntxhov siab. Lub stator core kev ntxhov siab tsim los ntawm kev cuam tshuam los ntawm kev sib koom ua ke ntawm cov hlau nplaum ruaj khov lub cev muaj zog feem ntau muaj nyob rau hauv daim ntawv ntawm compressive kev nyuaj siab, thiab nws qhov taw tes ua haujlwm yog concentrated nyob rau hauv lub quab ntawm lub cev muaj zog stator core, nrog rau kev ntxhov siab kev taw qhia manifested li circumferential tangential. Cov cuab yeej kev ntxhov siab tsim los ntawm lub zog centrifugal ntawm cov hlau nplaum ruaj khov lub cev muaj zog rotor yog tensile kev nyuaj siab, uas yuav luag ua tiav ntawm cov tub ntxhais hlau ntawm lub rotor. Qhov siab tshaj plaws centrifugal kev ntxhov siab ua rau ntawm kev sib tshuam ntawm cov hlau nplaum tas mus li lub cev muaj zog rotor sib nqus sib nqus choj thiab cov hlua txuas ntxiv, ua rau nws yooj yim rau kev ua haujlwm degradation tshwm sim hauv cheeb tsam no.

Cov nyhuv ntawm Iron Core Stress ntawm Magnetic Field ntawm Permanent Magnet Motors

Kev tshuaj xyuas cov kev hloov pauv hauv cov hlau nplaum sib nqus ntawm qhov tseem ceeb ntawm cov hlau nplaum ruaj khov motors, nws tau pom tias nyob rau hauv lub zog ntawm saturation, tsis muaj kev hloov pauv loj hauv cov hlau nplaum ntawm cov hlua txuas ntxiv thiab cov hlau nplaum sib nqus ntawm lub cev muaj zog rotor. Qhov sib nqus ceev ntawm stator thiab lub ntsiab sib nqus ntawm lub cev muaj zog sib txawv. Qhov no tseem tuaj yeem piav qhia txog cov nyhuv tseem ceeb ntawm kev faib cov khoom xa tawm thiab sib nqus ntawm lub sijhawm ua haujlwm ntawm lub cev muaj zog.

Qhov cuam tshuam ntawm kev nyuaj siab ntawm Core Poob

Vim muaj kev ntxhov siab, qhov kev ntxhov siab ntawm lub zog ntawm tus quab ntawm cov hlau nplaum ruaj khov stator lub cev muaj zog yuav yog qhov tseem ceeb, uas ua rau poob qis thiab kev ua haujlwm tsis zoo. Muaj ib qho teeb meem tseem ceeb ntawm cov hlau tsis muaj nyob ntawm tus quab ntawm cov hlau nplaum ruaj khov lub cev muaj zog stator, tshwj xeeb tshaj yog nyob rau ntawm qhov sib txuas ntawm cov hniav stator thiab tus quab, qhov uas cov hlau poob ntau tshaj vim muaj kev ntxhov siab. Kev tshawb fawb tau pom los ntawm kev suav hais tias cov hlau poob ntawm cov hlau nplaum mus tas li tau nce los ntawm 40% -50% vim muaj kev cuam tshuam ntawm tensile kev nyuaj siab, uas tseem yog qhov xav tsis thoob, yog li ua rau muaj kev nce ntxiv ntawm tag nrho cov hlau nplaum tas li. Los ntawm kev txheeb xyuas, nws tseem tuaj yeem pom tias cov hlau poob ntawm lub cev muaj zog yog qhov tseem ceeb ntawm kev poob los ntawm kev cuam tshuam ntawm kev ntxhov siab ntawm kev tsim ntawm stator hlau core. Rau lub cev muaj zog rotor, thaum cov tub ntxhais hlau nyob rau hauv centrifugal tensile kev nyuaj siab thaum lub sij hawm ua hauj lwm, tsis tsuas yog nws yuav tsis ua rau kom cov hlau poob, tab sis nws kuj yuav muaj ib tug tej yam kev txhim kho nyhuv.

Qhov cuam tshuam ntawm kev ntxhov siab ntawm inductance thiab torque

Qhov sib nqus induction kev ua tau zoo ntawm lub cev muaj zog hlau core deteriorates nyob rau hauv cov kev ntxhov siab ntawm cov tub ntxhais hlau, thiab nws cov ncej inductance yuav txo qis rau qee yam. Tshwj xeeb, kev txheeb xyuas qhov sib nqus hluav taws xob ntawm lub tshuab hlau nplaum ruaj khov, cov ncej hlau nplaum sib nqus feem ntau suav nrog peb ntu: huab cua sib txawv, cov hlau nplaum ruaj khov, thiab stator rotor hlau core. Ntawm lawv, cov hlau nplaum ruaj khov yog qhov tseem ceeb tshaj plaws. Raws li qhov laj thawj no, thaum qhov sib nqus induction kev ua tau zoo ntawm cov hlau nplaum ruaj khov lub cev muaj zog hlau hlau hloov pauv, nws tsis tuaj yeem ua rau muaj kev hloov pauv tseem ceeb hauv cov ncej inductance.

Cov ncej hlau nplaum sib nqus ib feem uas muaj qhov sib txawv ntawm huab cua thiab lub stator rotor core ntawm lub tshuab hlau nplaum ruaj khov yog me dua li qhov sib nqus ntawm cov hlau nplaum ruaj khov. Nrog rau kev cuam tshuam ntawm cov tub ntxhais kev ntxhov siab, kev ua haujlwm sib nqus induction deteriorates thiab cov ncej inductance txo qis. Tshawb xyuas qhov cuam tshuam ntawm kev ntxhov siab sib nqus ntawm cov hlau hlau ntawm lub tshuab hlau nplaum ruaj khov. Raws li qhov sib nqus induction kev ua tau zoo ntawm cov tub ntxhais lub cev muaj zog txo qis, qhov sib nqus sib nqus ntawm lub cev muaj zog txo qis, thiab lub zog hluav taws xob hluav taws xob ntawm lub tshuab hlau nplaum tas li kuj txo.