Dab tsi cuam tshuam rau kev nyab xeeb ntawm deceleration stepper motors, yuav xaiv li cas

Nyob ntawm qhov ceev, qhov kev daws teeb meem los ua kom lub zog ntawm lub cev tsis muaj zog yog qhov sib txawv. Cov tshuaj tsis yog tsuas yog brushless stepper lub cev muaj zog, tab sis kuj yog tsav Circuit Court.

1. Tus txheej txheem ntawm kev nce lub zog ntawm brushless stepping lub cev muaj zog ntawm qis ceev

1) Xaiv lub tshuab stepper nrog lub kaum sab xis me me. Thaum qis ceev, raws li tus naj npawb ntawm cov hniav ntawm lub rotor nce, lub torque yuav ntau dua. Stepper lub cev muaj zog nrog lub kaum sab xis me me tuaj yeem ua tiav siab torque. Yog hais tias tus naj npawb ntawm cov hniav ntawm HB rotor yog 50 cov hniav, qhov ntws tawm ntawm cov hlau nplaum ruaj khov yuav nce ntxiv, tab sis cov kauj ruam loj yuav sib npaug. Qhov kev txiav txim siab no siv tau tsawg dua 100 tus hniav. Peb-theem HB hom stepper lub cev muaj zog hloov los ntawm 1.2 (rotor 50 hniav) mus rau 0.6 (rotor 100 hniav). Kwv yees li ntawm 1.4 mus rau 1.8 lub sij hawm nce hauv qis ceev torque.

2) Cov kab mob bipolar

3) Kev ua tau zoo tuaj yeem ua ob npaug. Ob-theem unipolar los yog bipolar stepper motors yog muag, tab sis bipolar drives muaj ntau lub hwj chim transistors dua unipolar sawv daws yuav.

2. Txoj kev nce lub zog ntawm brushless stepping lub cev muaj zog ntawm kev kub ceev

1) Txo tus naj npawb ntawm cov lem thiab txo L. Nyob rau hauv cov khoom txheem ntawm cov chaw tsim tshuaj paus lub cev muaj zog, cov inductor L raug xaiv me me, thiab cov ntsuas tam sim no ua loj.

2) Qhov sib nqus flux ntawm cov hlau nplaum ruaj khov yuav tsum yog me me. Yog tias cov chaw tsim khoom tsis tuaj yeem txo cov hlau nplaum tas mus li, nws tuaj yeem ua rau qhov sib txawv ntawm huab cua, txo lub txee electromotive quab yuam ntawm kev kub ceev, nce qhov tam sim no, nce lub zog, thiab hloov qhov ceev, thiab cov yam ntxwv torque hloov ntawm qhov ceev mus rau kev kub ceev. Nyob rau hauv ib txoj kab ncaj nraim, kev kub ceev torque nce thiab yog li ua qhov zaus ntawm cov lus teb.

3) Xaiv lub cev muaj zog nrog lub kaum sab xis.

3. Cov txheej txheem ntawm kev txhim kho lub torque ntawm lub voj voog tsav thaum lub tshuab brushless stepping khiav ntawm kev kub ceev

1) Ua kom muaj qhov hluav taws xob ntawm kev tsav tsheb tam sim no txhawm rau tswj kev kub ceev thiab kev kub ceev, ua kom lub zog tam sim no, thiab ua kom lub chopper nyob rau hauv lub xeev tsis tu ncua. Txhawm rau kom qhov tam sim no tsis tu ncua, tsuas yog cov mem tes zaus nce. Thaum lub brushless stepper lub cev muaj zog mus txog ib tug tej yam kev kub ceev, lub voltage tsuas yog ua hauj lwm nyob rau hauv ib tug tas li voltage lub xeev. Yog hais tias qhov input voltage nce, nws tseem tuaj yeem ua haujlwm ntawm lub xeev tam sim no ntawm kev kub ceev. Yog hais tias lub input voltage yog nce, nws muaj peev xwm ua hauj lwm nyob rau hauv ib tug high-ceev tam sim no lub xeev, yog li ua rau high-ceev torque.

2) Thaum lub tshuab hluav taws xob tawm, qhov tam sim no hauv lub kauj tam sim no raug txo. Thaum lub hwj chim raj raug tua, tus nqi ntawm kev hloov ntawm tam sim no loj, thiab ib tug loj heev induced voltage yog generated nyob rau hauv lub kauj. Lub raj fais fab tuaj yeem raug puas tsuaj thiab feem ntau muaj kev tiv thaiv Circuit Court.