Cov ntsiab lus tseem ceeb uas yuav tsum tau muaj rau kev xaiv lub cev muaj zog yog: tsav hom, ntsuas lub zog, ntsuas hluav taws xob, ntsuas nrawm, thiab lwm yam.

1. Hom load yuav tsum tau tsav yog inversely hais los ntawm cov yam ntxwv ntawm lub cev muaj zog.Lub cev muaj zog tuaj yeem muab faib ua DC motors thiab AC motors, thiab AC tau muab faib ntxiv rau hauv cov motors synchronous thiab asynchronous motors.

Qhov zoo ntawm DC lub cev muaj zog tuaj yeem kho qhov nrawm los ntawm kev hloov qhov hluav taws xob, thiab tuaj yeem muab lub zog loj.Nws yog qhov tsim nyog rau kev thauj khoom uas yuav tsum tau kho qhov ceev tsis tu ncua, xws li dov mills hauv steel mills, hoists hauv mines, thiab lwm yam. Tab sis tam sim no nrog kev txhim kho ntawm zaus hloov tshuab, AC lub cev muaj zog kuj tuaj yeem kho qhov ceev los ntawm kev hloov cov zaus.Txawm li cas los xij, txawm hais tias tus nqi ntawm cov tshuab hluav taws xob sib txawv tsis yog kim dua li cov motors zoo tib yam, tus nqi ntawm cov zaus hloov pauv yog ib feem ntawm tag nrho cov khoom siv, yog li lwm qhov zoo ntawm DC motors yog tias lawv pheej yig.Qhov tsis zoo ntawm DC motors yog tias cov qauv yog complex.Ntev npaum li txhua yam khoom siv muaj cov qauv tsim, nws yuav ua rau muaj kev nce hauv qhov tsis ua haujlwm.Piv nrog AC motors, DC motors tsis yog tsuas yog nyuaj rau windings (excitation windings, commutation ncej windings, them nyiaj windings, armature windings), tab sis kuj ntxiv rings, txhuam thiab commutators.Tsis tsuas yog cov txheej txheem yuav tsum tau ntawm cov chaw tsim tshuaj paus yog siab, tab sis tus nqi tu nyob rau hauv lub sij hawm tom qab yog kuj kuj siab.Yog li ntawd, DC motors nyob rau hauv kev lag luam daim ntawv thov yog nyob rau hauv ib tug txaj muag qhov teeb meem uas lawv maj mam poob tab sis tseem muaj qhov chaw nyob rau hauv lub transitional theem.Yog tias tus neeg siv muaj nyiaj txaus, nws raug nquahu kom xaiv lub tswv yim ntawm AC lub cev muaj zog nrog zaus hloov pauv.

2. Asynchronous lub cev muaj zog

Qhov zoo ntawm asynchronous motors yog cov qauv yooj yim, kev ua haujlwm ruaj khov, kev saib xyuas yooj yim thiab tus nqi qis.Thiab cov txheej txheem tsim khoom kuj yog qhov yooj yim tshaj plaws.Kuv tau hnov ​​​​los ntawm ib tus kws tshaj lij qub hauv kev cob qhia tias nws yuav siv ob lub tshuab synchronous lossis plaub lub asynchronous lub zog zoo sib xws los sib sau ua ke DC lub cev muaj zog.Qhov no yog qhov tseeb.Yog li ntawd, asynchronous motors yog cov feem ntau siv nyob rau hauv kev lag luam.

2. Rated zog

Lub zog ntsuas ntawm lub cev muaj zog yog hais txog lub zog tso zis, uas yog, lub zog ncej, tseem hu ua lub peev xwm, uas yog lub cim tseem ceeb ntawm lub cev muaj zog.Cov neeg feem ntau nug seb lub cav loj npaum li cas.Feem ntau, nws tsis yog hais txog qhov loj ntawm lub cev muaj zog, tab sis rau qhov ntsuas lub zog.Nws yog qhov tseem ceeb tshaj plaws qhia kom muaj nuj nqis ntawm lub cev muaj zog rub lub peev xwm, thiab nws tseem yog qhov yuav tsum tau muaj qhov yuav tsum tau muab thaum lub cev muaj zog raug xaiv.

Lub hauv paus ntsiab lus ntawm kev xaiv kom raug lub cev muaj peev xwm yuav tsum yog qhov kev lag luam zoo tshaj plaws thiab kev txiav txim siab tsim nyog tshaj plaws ntawm lub zog ntawm lub cev muaj zog nyob rau hauv qhov chaw uas lub cev muaj zog tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov khoom tsim khoom.Yog tias lub zog loj dhau lawm, cov cuab yeej siv peev nyiaj yuav nce ntxiv, ua rau cov khoom pov tseg, thiab lub cev muaj zog feem ntau khiav qis, thiab qhov ua tau zoo thiab lub zog ntawm AC lub cev muaj zog tsawg;ntawm qhov tsis sib xws, yog tias lub zog me me dhau, lub cev muaj zog yuav dhau mus, ua rau lub cev muaj zog ua haujlwm ntxov.kev puas tsuaj.Muaj peb yam uas txiav txim siab lub zog tseem ceeb ntawm lub cev muaj zog: 1) cua sov thiab kub nce ntawm lub cev muaj zog, uas yog qhov tseem ceeb tshaj plaws hauv kev txiav txim siab lub zog ntawm lub cev muaj zog;2) lub sij hawm luv luv overload muaj peev xwm raug tso cai;3) lub peev xwm pib yuav tsum tau txiav txim siab rau asynchronous squirrel tawb lub cev muaj zog.

3. Rated voltage

Qhov ntsuas hluav taws xob ntawm lub cev muaj zog yog hais txog cov kab hluav taws xob hauv qhov ntsuas ua haujlwm.Kev xaiv ntawm qhov ntsuas hluav taws xob ntawm lub cev muaj zog nyob ntawm lub zog hluav taws xob ntawm lub zog hluav taws xob rau lub lag luam thiab qhov loj ntawm lub cev muaj peev xwm.

Lub cev muaj zog thiab cov tshuab ua haujlwm uas tau tsav los ntawm nws muaj lawv tus kheej ntsuas ceev.Thaum xaiv qhov ceev ntawm lub cev muaj zog, nws yuav tsum raug sau tseg tias qhov ceev yuav tsum tsis txhob qis dhau, vim tias qhov qis qis ntawm lub cev muaj zog, qhov ntau ntawm cov theem, qhov ntim loj dua thiab tus nqi siab dua;tib lub sijhawm, qhov ceev ntawm lub cev yuav tsum tsis txhob xaiv dhau lawm.siab, vim qhov no yuav ua rau kis tau tus mob nyuaj heev thiab nyuaj rau tswj.Tsis tas li ntawd, thaum lub zog tas li, lub cev muaj zog torque yog inversely proportional rau qhov ceev.

Feem ntau hais lus, lub cev muaj zog tuaj yeem txiav txim siab los ntawm kev muab hom kev thauj khoom uas tau tsav, ntsuas lub zog, ntsuas hluav taws xob, thiab ntsuas qhov nrawm ntawm lub cev muaj zog.Txawm li cas los xij, cov kev txwv tsis pub muaj nyob deb ntawm qhov txaus yog tias cov kev cai thauj khoom yuav tsum tau ua kom zoo.Tsis tas li ntawd yuav tsum tau muab muaj xws li: zaus, ua hauj lwm system, overload yuav tsum, rwb thaiv tsev chav kawm ntawv, tiv thaiv chav kawm ntawv, lub sij hawm ntawm inertia, load kuj torque nkhaus, installation txoj kev, ambient kub, altitude, sab nraum zoov yuav tsum, thiab lwm yam., uas yog muab raws li rau tej yam kev mob.