Tshuaj rau txoj hauj lwm tseeb ntawm stepping lub cev muaj zog
Kev Txhim Kho ntawm Circuit Drive
Ua ntej, qhov pom muaj peev xwm (tam sim no) tsav: los ntawm lub ntsuas cua uas muaj peev xwm los txo qhov hluav taws xob los tsav lub cav hlau, pom tias qhov chaw nyob qhov tseeb yog qhov phem tshaj.
Piv txwv, thaum tsis muaj-load, tus encoder yog siv raws li cov load, thiab qhov tseeb ntawm cov voltage nyob (tam sim no) yog qis dua lub siab voltage (tam sim no). Raws li pom hauv daim duab saum toj no, qhov cog qoob loo ua rau qhov kev sib txawv ntawm kev coj txawv txawv nws txawv nyob ntawm qhov cov lus siv hluav taws xob. Qhov tsawg dua qhov voltage, qhov ntau pom tseeb cov nyhuv ntawm cog cog. Tus neeg sau txoj kev paub yog tias nws yog cumbersome muaj cov neeg pluag lub cev, uas yuav ua rau ntsuas voltage (tam sim no) tsis muaj tseeb . Koj yuav pom tau hais tias lub tawb tau muaj kev sib raug zoo nrog qhov kev sib raug zoo, thiab yog tias txoj kev sib raug zoo sib txawv, qhov tsis sib thooj ntawm qhov tsis muaj qhov mob yuav ploj los ua qhov chaw dig muag.
Thib ob, 2-theem excitation tsav: 1-theem excitation drives tus stator hniav thiab cov hniav rotor rau cov chaw muab tso chaw. Txheeb ze rau 2-theem excitation, ob theem cua ntawm cov stator pog zoo siab, thiab cov rotor hniav magnetic teb yog balanced nrog stator magnetic teb rau txoj hauj lwm . Thaum cov lus hais ntawm kev ua kom muaj li ntawm 1-theem, qhov tseeb yuam yog cov neeg ua hauj lwm raug txhua theem ntawm stator, thiab qhov 2-theem excitation yuam yog txiav txim los ntawm tus ncej ntau zaum, qhov yuam kev yog alleviated, thiab qhov tseeb raug kho. Qee hom ntsug theem ob hom theem pib ntawm hom kem, theem 1-phais mob yog piv nrog 2-excitation excitation, thiab 1-theem excitation raug zoo heev.
Qhov thib peb, cov haujlwm ua ntau theem ua haujlwm: ob theem ua qes zaum ob nrog 2 lossis 4 kauj ruam txoj haujlwm tsav; peb-theem stepper tsav 3 lossis 6 kauj ruam txoj hauj lwm tsav tsheb. "Kev ntsuas ntawm cov kauj ruam lub kauj ruam ntawm stepping lub cev muaj zog"
Tsab xov xwm tau hais txog qhov piv txwv ntawm ob theem HB hom kev ua haujlwm, xws li muab txhua 4 kauj ruam ua, qhov tseeb yog qhov zoo.
Piv txwv, thaum tso qhov chaw ntawm 1.8 °, 1.8 ° tsis siv tag nrho stepping, tab sis siv ib lub cav kauj ruam ntawm 0.9, tsav 1.8 ° txoj hauj lwm nyob hauv 2 kauj ruam, thiab xaiv ib kauj ruam ntawm 0.6 ° thawm tag nrho, 3 kauj ruam tsav muaj ib hom tsav ntawm 0.6 ° × 3 = 1.8 °. Txoj kev no ua tau zoo heev rau qhov tseeb.
Lub cev muaj zog txhim kho
Kev txhim kho kev nplua nuj ntawm tus qauv stator: Nws paub zoo tias tus qauv zoo ntawm tus stator yuav txhim kho qhov tseeb ntawm nws qhov chaw. Kev siv ob theem phom ua piv txwv, tus nplua-tuning qauv yuav txo qhov cog cog, thiab tus cwj pwm ntawm lub ntsej muag yuav ua rau lub cev ntaj nthwv dej.
Peb theem HB hom 1.2 ° stepping motor, rau lub kaum tus ncej tseem tsis zoo-tuned, thiab cov positional tseeb yog muab piv nrog 12-ncej loj-stepped puv-tsav tsav.
Cov xwm txheej qhov tseeb ntawm qhov 1/8 tshooj tsav yog muab piv rau raws li qhia hauv qab no:
Thaum lub kauj ruam ntawm theem peb theem siab ntawm 12 lub rooj sib txhuam hauv cov txheej txheem zoo tuaj yeem ua tiav, qhov chaw nyob ntawm qhov chaw nce tau zoo dua li ntawm 2%. Hauv tshooj lus, qhov tseeb ntawm qhov tseeb ntawm qhov tseeb yog nce li ntawm 50%. Lub kauj ruam ntawm lub kauj ruam ntawm lub kauj ruam yog ntau dua li cov kauj ruam ntawm lub kauj ruam . Thaum cov kauj ruam me me yog 8 pawg, lub kaum sab xis yog 1.2 ° / 8 = 0.15 °, uas yog siv los ntawm kev tswj kev qhia, thiab qhov tseeb yog qhov tseeb tshaj li qhov siab tshaj plaws.
Kev Txhim Kho ntawm peb theem HB siab-cav: Peb theem HB hom stepping lub cev muaj ob theem 1.8 ° 1/3, uas yog, 0.6 ° siab daws teeb meem kev tsav tsheb. Txij thaum tus tsav tsheb tuaj yeem yuav tau nyob rau hauv kev ua lag luam, nws tuaj yeem ua tiav tau yooj yim .
Kev txhim kho nyob rau hauv RM-hom me me: Thaum lub kaum sab xis los ntawm HB hom kev ua qoj hlau, qhov tseeb yog teeb meem thaum siv rau kev nrhiav chaw nyob. Thaum twg RM hom 10 qhov chaw me me positioned, qhov chaw uas tau muab xam tawm yog hloov lawm, thiab qhov khau ntawm cov kauj ruam ntawm micro kauj ruam sib piv.