Qhov txawv ntawm Stepper Tsav thiab DC Tsav

Qhov txawv ntawm Stepper Tsav thiab DC Tsav
Qhov txawv ntawm Stepper Tsav thiab DC Tsav

Video: Qhov txawv ntawm Stepper Tsav thiab DC Tsav

Video: Qhov txawv ntawm Stepper Tsav thiab DC Tsav
Video: qhov ncauj qhia tau neeg Tus YAM NTXWV thiab TXOJ HMOO 2024, Kaum ib hlis
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Stepper Tsav vs DC Tsav

Lub hauv paus ntsiab lus siv nyob rau hauv motors yog ib qho ntawm lub hauv paus ntsiab lus ntawm induction. Txoj cai lij choj hais tias yog tias tus nqi txav mus rau hauv qhov chaw sib nqus, lub zog ua haujlwm ntawm tus nqi nyob rau hauv ib qho kev taw qhia rau ob qho tib si lub nrawm ntawm tus nqi thiab qhov chaw sib nqus. Tib lub hauv paus ntsiab lus siv rau kev khiav ntawm tus nqi, ces nws yog tam sim no thiab tus neeg xyuas pib nqa tam sim no. Kev taw qhia ntawm lub zog no yog muab los ntawm Fleming txoj cai sab xis. Qhov tshwm sim yooj yim ntawm qhov tshwm sim no yog tias yog tias tam sim no ntws hauv tus neeg xyuas pib hauv qhov chaw sib nqus, tus neeg xyuas pib txav mus. Tag nrho cov motors tau ua haujlwm ntawm txoj cai no.

Ntau txog DC lub cev muaj zog

DC lub cev muaj zog yog siv los ntawm DC lub zog, thiab ob hom DC motors tau siv. Lawv yog Brushed DC lub cev muaj zog thiab Brushless DC lub cev muaj zog.

Hauv cov tshuab txhuam hniav, txhuam hniav yog siv los tswj kev sib txuas hluav taws xob nrog lub rotor winding, thiab kev sib hloov sab hauv hloov cov polarities ntawm cov electromagnet kom cov kev sib hloov tau ruaj khov. Nyob rau hauv DC motors, mus tas li los yog electromagnets yog siv raws li stators. Lub rotor coils yog tag nrho txuas nrog hauv koob, thiab txhua qhov kev sib txuas txuas nrog lub commutator bar thiab txhua lub kauj hauv qab tus ncej txhawb nqa torque ntau lawm.

Hauv DC motors me, cov xov tooj cua qis qis, thiab ob lub hlau nplaum ruaj khov siv los ua tus stator. Thaum xav tau ntau dua torque, tus naj npawb ntawm windings thiab lub zog hlau nplaum yog nce.

Hom thib ob yog brushless motors, uas muaj cov hlau nplaum ruaj khov raws li lub rotor thiab electromagnets nyob rau hauv lub rotor. Brushless DC (BLDC) lub cev muaj zog muaj ntau yam zoo dua li brushed DC lub cev muaj zog xws li kev ntseeg tau zoo dua, lub neej ntev (tsis muaj txhuam thiab commutator yaig), ntau lub zog ib watt (nce efficiency) thiab ntau dua torque ib qhov hnyav, tag nrho txo cov electromagnetic cuam tshuam (EMI), thiab txo cov suab nrov thiab tshem tawm ntawm ionizing sparks los ntawm commutator. Lub zog siab transistor them thiab tsav cov electromagnets. Cov hom motors no feem ntau siv rau hauv cov kiv cua txias ntawm cov computers

Ntau txog Stepper Motor

Ib lub cev muaj zog stepper (los yog kauj ruam lub cev muaj zog) yog brushless DC lub cev muaj zog uas tag nrho kev sib hloov ntawm lub rotor muab faib ua ntau theem sib npaug. Lub cev muaj zog txoj hauj lwm tuaj yeem tswj tau los ntawm kev tuav lub rotor ntawm ib qho ntawm cov kauj ruam no. Yog tsis muaj kev tawm tswv yim sensor (ib qho qhib-voj maub los), nws tsis muaj kev tawm tswv yim li servo lub cev muaj zog.

Stepper motors muaj ntau lub tshuab electromagnets teem ib ncig ntawm lub hauv paus iav-zoo li daim hlau. Cov electromagnets yog energized los ntawm ib tug sab nraud tswj Circuit Court, xws li ib tug microcontroller. Txhawm rau ua kom lub cev muaj zog tig, ua ntej ib qho ntawm cov hlau nplaum yog muab lub zog, uas ua rau cov hniav iav magnetically attracted rau electromagnet cov hniav, thiab tig mus rau txoj hauj lwm ntawd. Thaum lub iav cov hniav sib haum mus rau thawj electromagnet, cov hniav yog offset los ntawm lub tom ntej no electromagnet los ntawm ib tug me me kaum sab xis.

Txhawm rau txav lub rotor, lub tshuab hluav taws xob tom ntej yog qhib, hloov mus rau lwm tus. Cov txheej txheem no rov ua dua los muab kev sib hloov tas mus li. Txhua qhov kev sib hloov me me no hu ua "kauj ruam". Ib tus lej ntawm ntau cov kauj ruam ua tiav ib lub voj voog. Siv cov kauj ruam no los tig lub cev muaj zog, lub cev muaj zog tuaj yeem tswj tau lub kaum ntse ntse. Muaj plaub yam tseem ceeb ntawm stepper motors; Cov hlau nplaum ruaj khov stepper, Hybrid synchronous stepper, Variable reluctance stepper thiab Lavet hom stepping motor

Stepper motors yog siv rau hauv kev tswj kev txav chaw.

DC Tsav vs Stepper Tsav

• DC motors siv DC fais fab mov thiab muab faib ua ob chav loj; brushed thiab brushless DC lub cev muaj zog, whereas Stepper lub cev muaj zog yog ib tug brushless DC lub cev muaj zog nrog tshwj xeeb yam ntxwv.

• Ib qho DC lub cev muaj zog (tshwj tsis yog txuas nrog servo mechanisms) tsis tuaj yeem tswj txoj haujlwm ntawm lub rotor, thaum lub cev muaj zog tuaj yeem tswj tau, txoj haujlwm ntawm lub rotor.

• Cov kauj ruam ntawm cov kauj ruam ntawm lub cev muaj zog yuav tsum tau tswj nrog cov cuab yeej tswj hwm zoo li lub microcontroller, thaum lub tshuab DC dav dav tsis tas yuav muaj cov khoom siv sab nraud rau kev ua haujlwm.

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