Dab tsi yog Hom Stepper Tsav

A stepper lub cev muaj zogyog ib tug actuator uas tswj nrog hluav taws xob pulses thiab converts cov hluav taws xob pulses (digital signals) rau hauv angular displacements. Nyob rau hauv xyoo tas los no, txoj kev loj hlob sai ntawm microelectronics technology thiab tsav tshuab tau ntxiv kev txhim kho ntawm stepper motors. Daim ntawv no yuav muab cov lus qhia tob rau hom stepper lub cev muaj zog, thiab ua tiav categorize lawv raws li tus naj npawb ntawm theem, tus qauv ntawm lub rotor, thiab tsav hom.

 

1. Kev faib tawm raws li tus naj npawb ntawm stator theem

Tus naj npawb ntawm cov theem yog hais txog tus naj npawb ntawm winding hauv stepper motor. Stepper motors uas tib neeg siv niaj hnub no yog ob-theem, peb-theem, thiab tsib-theem stepper motors. Raws li cov theem sib txawv, lawv muaj cov kauj ruam sib txawv. Feem ntau, lub kaum sab xis ntawm ob-theem stepping lub cev muaj zog yog 0.9 degree / 1.8 degree, peb theem stepper motor yog 1.2 degree thiab tsib-theem stepping motor ntawm 0.72 degree .

 

1. 1 Ob-theem stepper lub cev muaj zog

Ob-theem stepper lub cev muaj zog muaj ob lub windings thiab nws cov qauv yog qhov yooj yim, uas yog tsim rau qee daim ntawv thov uas muaj qee qhov kev txwv ntawm tus nqi tab sis yuav tsum tau muaj siab precision, Tsis tas li ntawd, nws feem ntau pom muaj kev vibration qis, yog li nws kuj tsim nyog rau kev co. -sensitive applications.

1.2 Peb-theem hybrid stepping lub cev muaj zog

Peb-theem stepping lub cev muaj zog muaj peb windings nrog ntau cov qauv, haum rau cov kev siv uas yuav tsum tau siab smoothness ntawm cov lus tsa suab thiab tswj stability, xws li high-end CNC tshuab cuab yeej thiab precision instruments.

1.3 Tsib-theem hybrid stepping lub cev muaj zog

Lub 5-theem stepping motor muaj tsib windings. Piv nrog rau ob-theem thiab peb-theem motors, lawv muaj peev xwm muab siab dua stepping lub kaum sab xis daws teeb meem, uas yuav pab kom paub finer motion control, haum rau daim ntaub ntawv uas yuav tsum tau high-ceev tswj, xws li laser txiav machine, precision positioning systems, thiab hais txog.

 

 

2. Kev faib tawm raws li tus qauv rotor

Raws li cov qauv rotor, lub cev muaj zog stepper tuaj yeem muab faib ua qhov sib txawv tsis txaus ntseeg stepper motors, hybrid stepper motors, thiab Permanent Magnet Stepper Tsav

 

2.1 Variable Reluctance stepper motor.

Lub cev muaj zog rotor yog ua los ntawm cov khoom siv sib nqus mos uas tsis muaj hlau nplaum thiab muaj ntau cov hniav me me ntawm tib qhov loj thiab cov suab nyob rau sab nrauv ntawm lub rotor ncej thiab sab hauv ntawm stator ncej. Thaum lub stator coil yog energized, stator ncej magnetizes thiab attracts cov hniav rotor, tsim torque txav ib kauj ruam. Piv nrog rau cov hlau nplaum ruaj khov motors uas tsim cov hlau nplaum attraction torque thiab magnetic repulsion torque, qhov sib txawv tsis txaus siab stepper lub cev muaj zog tsuas yog tsim kev nyiam torque Nws cov qauv yooj yim, thiab nws muaj lub kaum sab xis me me, mus txog 1.2 degree. Piv rau lwm hom stepper motors, nws raug nqi tsawg dua. Tab sis tib lub sijhawm, nws muaj qee qhov tsis txaus, xws li kev ua haujlwm tsis zoo, kev ua haujlwm qis, kev tsim hluav taws xob loj, thiab lwm yam.

 

2.2 hybrid stepper lub cev muaj zog

Lub hybrid stepper lub cev muaj zog sib xyaw ua ke qhov zoo ntawm cov hlau nplaum reactive thiab ruaj khov, nrog ntau theem windings ntawm stator, cov khoom siv hlau nplaum ruaj khov ntawm lub rotor, thiab ntau cov hniav me me ntawm ob lub rotor thiab stator los txhim kho cov kauj ruam precision. Nws yog tus cwj pwm los ntawm cov zis loj torque, kev ua haujlwm zoo dynamic, thiab lub kaum sab xis me me, tab sis cov qauv yog qhov nyuaj thiab tus nqi kuj yog siab heev.

 

2.3 Permanent Magnet Stepper Tsav

Lub rotor ntawm cov hlau nplaum ruaj khov stepping lub cev muaj zog yog ua los ntawm cov khoom siv hlau nplaum ruaj khov, thiab tus naj npawb ntawm cov ncej ntawm lub rotor yog tib yam li tus naj npawb ntawm tus ncej ntawm stator. Nws yog tus cwj pwm los ntawm kev ua tau zoo ntawm kev ua haujlwm zoo thiab cov khoom tso tawm loj, tab sis hom lub cev muaj zog tsis zoo thiab lub kaum sab xis loj (feem ntau 7.5 degree lossis 15 degree).

 

3. Kev faib tawm raws li txoj kev tsav (bipolar tsav / unipolar tsav)

Steppe motors kuj categorized rau unipolar stepper motors thiab bipolar stepper motors raws li txoj kev tsav. Yog hais tias lub kauj ntawm lub kauj stepper lub cev muaj zog tuaj yeem ua hluav taws xob hauv ob qho tib si, ces lub tshuab stepper yog bipolar, ntawm qhov tsis sib xws, yog tias lub kauj ntawm lub tshuab stepper tsuas yog tso cai rau hluav taws xob hauv ib qho kev taw qhia, ces lub tshuab stepper yog unipolar.

 

Lub kauj hauv daim duab hauv qab no tuaj yeem ua hluav taws xob hauv ob qho tib si, yog li nws yog bipolar stepper lub cev muaj zog.

 

Lub nruab nrab xaim ntawm lub kauj hauv daim duab hauv qab no ib txwm txuas nrog lub davhlau ya nyob twg zoo ntawm lub zog hluav taws xob lossis ib txwm txuas nrog lub davhlau ya nyob twg tsis zoo ntawm lub zog hluav taws xob, thiab nws yog unipolar stepper lub cev muaj zog.

 

Feem ntau, cov tsav tsheb bipolar yog siv rau qis-ceev, high-torque loads, thaum unipolar drives yog siv rau high-speed drives. Qhov no yog vim tias qhov tso zis torque ntawm hom bipolar yog li 50% loj dua li ntawm hom unipolar ntawm qhov nrawm qis. Nyob rau hauv high speeds, lub inductance ntawm lub bipolar hom yuav loj vim muaj coob tus lem, uas txo cov tam sim no thiab yog li lub torque. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum xaiv lub unipolar lossis bipolar tsav daim ntawv thov rau qhov loj ntawm lub load, ceev ntawm kev siv, lub sij hawm acceleration, thiab lwm yam.