Qhov tawm ntawm kauj ruam yuav tsum yog lub plawv dhia tsis txav mus rau qhov chaw teev tseg. Qhov overshoot yuav tsum yog qhov sib txawv ntawm qhov tawm ntawm kauj ruam, txav mus dhau qhov chaw teev tseg.
Cov cav stepperFeem ntau siv rau hauv cov txheej txheem tswj kev txav chaw uas kev tswj yooj yim lossis qhov twg xav tau tus nqi qis. Qhov zoo tshaj plaws yog tias qhov chaw thiab qhov ceev raug tswj hwm hauv txoj kev qhib-loop. Tab sis vim nws yog kev tswj hwm qhib-loop, qhov chaw thauj khoom tsis muaj kev tawm tswv yim rau lub voj voog tswj, thiab lub cev muaj zog stepper yuav tsum teb kom raug rau txhua qhov kev hloov pauv excitation. Yog tias qhov zaus excitation tsis raug xaiv kom raug, lub cev muaj zog stepper yuav tsis tuaj yeem txav mus rau qhov chaw tshiab. Qhov chaw tiag tiag ntawm qhov thauj khoom zoo li yuam kev mus tas li piv rau qhov chaw xav tau los ntawm tus maub los, piv txwv li, qhov xwm txheej tawm ntawm kauj ruam lossis overshoot yog xav txog. Yog li ntawd, hauv lub cev muaj zog qhib-loop tswj system, yuav ua li cas tiv thaiv kev poob ntawm kauj ruam thiab overshoot yog qhov tseem ceeb rau kev ua haujlwm ib txwm ntawm lub cev muaj zog qhib-loop tswj system.
Cov xwm txheej tawm ntawm kauj ruam thiab overshoot tshwm sim thaumlub cev muaj zog stepperpib thiab nres, raws li. Feem ntau, qhov txwv ntawm lub kaw lus pib zaus yog qhov tsawg, thaum qhov ceev ua haujlwm xav tau feem ntau siab. Yog tias lub kaw lus pib ncaj qha ntawm qhov ceev khiav xav tau, vim tias qhov ceev tau dhau qhov txwv, qhov zaus pib thiab tsis tuaj yeem pib kom raug, pib nrog ib kauj ruam poob, hnyav tsis tuaj yeem pib txhua, ua rau muaj kev sib hloov thaiv. Tom qab lub kaw lus khiav, yog tias qhov kawg tau mus txog qhov kawg tam sim ntawd nres xa cov pulses, yog li nws nres tam sim ntawd, tom qab ntawd vim yog inertia ntawm lub kaw lus, lub cev muaj zog stepper yuav tig mus rau qhov chaw sib npaug uas tus maub los xav tau.
Yuav kom kov yeej qhov teeb meem ntawm kev tawm ntawm kauj ruam thiab overshoot, yuav tsum ntxiv rau qhov pib-nres kev tswj hwm kev nrawm thiab kev qeeb. Peb feem ntau siv: daim npav tswj kev txav mus los rau chav tswj sab saud, PLC nrog cov haujlwm tswj hwm rau chav tswj sab saud, microcontroller rau chav tswj sab saud los tswj kev txav mus los kev nrawm thiab kev qeeb tuaj yeem kov yeej qhov teeb meem ntawm kev poob kauj ruam overshoot.
Hauv cov lus ntawm cov neeg tsis paub: thaum tus tsav tsheb stepper tau txais lub teeb liab pulse, nws tsav lublub cev muaj zog stepperkom tig lub kaum sab xis ruaj khov (thiab lub kaum sab xis kauj ruam) rau hauv qhov kev taw qhia teem tseg. Koj tuaj yeem tswj tus naj npawb ntawm cov pulses kom tswj tau qhov ntau ntawm kev hloov pauv lub kaum sab xis, kom ua tiav lub hom phiaj ntawm qhov chaw raug; tib lub sijhawm, koj tuaj yeem tswj lub zaus pulse kom tswj tau qhov ceev thiab kev nrawm ntawm kev tig lub cev muaj zog, kom ua tiav lub hom phiaj ntawm kev tswj hwm qhov ceev. Stepper lub cev muaj zog muaj qhov kev ntsuas kev ua haujlwm: tsis muaj-load pib zaus, uas yog, lub cev muaj zog stepper hauv qhov xwm txheej ntawm tsis muaj-load pulse zaus tuaj yeem pib ib txwm. Yog tias lub zaus pulse siab dua qhov tsis muaj-load pib zaus, lub cev muaj zog stepper tsis tuaj yeem pib kom raug, tej zaum yuav tshwm sim poob cov kauj ruam lossis thaiv qhov tshwm sim. Hauv qhov xwm txheej ntawm kev thauj khoom, qhov zaus pib yuav tsum qis dua. Yog tias lub cev muaj zog yuav tsum tig ntawm qhov ceev ceev, qhov zaus pulse yuav tsum muaj cov txheej txheem acceleration tsim nyog, piv txwv li, qhov zaus pib qis thiab tom qab ntawd nce mus rau qhov zaus siab xav tau ntawm qee qhov kev nrawm (lub cev muaj zog ceev nce los ntawm qis mus rau qhov ceev ceev).
Zaus pib = qhov ceev pib × pes tsawg kauj ruam ib zaug tig.Qhov pib ceev ntawm lub cev muaj zog stepper uas tsis muaj kev nrawm lossis qeeb tsis muaj kev thauj khoom yuav tig ncaj qha mus rau saum. Thaum lub cev muaj zog stepper tig, qhov inductance ntawm txhua theem ntawm lub cev muaj zog winding yuav tsim lub zog hluav taws xob rov qab; qhov siab dua qhov zaus, qhov ntau dua qhov rov qab muaj zog hluav taws xob. Hauv nws qhov kev ua, lub cev muaj zog nrog qhov zaus (lossis qhov ceev) nce thiab qhov tam sim no theem txo qis, uas ua rau lub zog torque txo qis.
Xav tias: tag nrho cov zis torque ntawm lub reducer yog T1, qhov tso zis ceev yog N1, qhov txo qis piv yog 5: 1, thiab lub kaum sab xis ntawm lub cev muaj zog stepper yog A. Tom qab ntawd lub cev muaj zog ceev yog: 5 * (N1), tom qab ntawd lub zog tso zis ntawm lub cev muaj zog yuav tsum yog (T1) / 5, thiab qhov zaus ua haujlwm ntawm lub cev muaj zog yuav tsum yog
5 * (N1) * 360 / A, yog li koj yuav tsum saib ntawm qhov nkhaus ntawm lub sijhawm-zaus: qhov chaw sib koom ua ke [(T1) / 5, 5 * (N1) * 360 / A] tsis nyob hauv qab qhov nkhaus ntawm qhov zaus (qhov nkhaus ntawm lub sijhawm-zaus pib). Yog tias nws nyob hauv qab qhov nkhaus ntawm lub sijhawm-zaus, koj tuaj yeem xaiv lub cev muaj zog no. Yog tias nws nyob saum toj ntawm qhov nkhaus ntawm lub sijhawm-zaus, ces, koj tsis tuaj yeem xaiv lub cev muaj zog no vim tias nws yuav plam-kauj ruam, lossis tsis tig hlo li.
Koj puas txiav txim siab seb lub xeev ua haujlwm li cas, koj xav tau qhov ceev tshaj plaws uas tau txiav txim siab, yog tias tau txiav txim siab, ces koj tuaj yeem xam raws li cov qauv uas tau muab los saum toj no, (raws li qhov ceev tshaj plaws ntawm kev sib hloov, thiab qhov loj ntawm lub nra, koj tuaj yeem txiav txim siab seb lub cev muaj zog stepper uas koj xaiv tam sim no puas tsim nyog, yog tias tsis yog koj yuav tsum paub tias hom stepper motor twg yuav xaiv).
Tsis tas li ntawd xwb, lub stepper motor thaum pib tom qab lub load tuaj yeem hloov pauv, thiab tom qab ntawd nce qhov zaus, vim tiaslub cev muaj zog stepperQhov nkhaus zaus ntawm lub sijhawm yuav tsum muaj ob, koj muaj qhov ntawd yuav tsum yog qhov nkhaus zaus ntawm lub sijhawm pib, thiab lwm qhov yog tawm ntawm qhov nkhaus zaus ntawm lub sijhawm, qhov nkhaus no sawv cev rau lub ntsiab lus ntawm: pib lub cev muaj zog ntawm qhov zaus pib, tom qab ua tiav qhov pib tuaj yeem ua rau lub nra hnyav nce, tab sis lub cev muaj zog yuav tsis poob qhov xwm txheej kauj ruam; lossis Pib lub cev muaj zog ntawm qhov zaus pib, yog tias muaj kev thauj khoom tas li, koj tuaj yeem ua kom qhov ceev khiav zoo, tab sis lub cev muaj zog yuav tsis poob qhov xwm txheej kauj ruam.
Qhov saum toj no yog qhov kev qhia txog stepper motor tawm ntawm kauj ruam thiab overshoot.
Yog tias koj xav sib txuas lus thiab koom tes nrog peb, thov koj xav tiv tauj peb!
Peb sib tham nrog peb cov neeg siv khoom, mloog lawv cov kev xav tau thiab ua raws li lawv cov lus thov. Peb ntseeg tias kev koom tes ua lag luam yeej-yeej yog raws li qhov zoo ntawm cov khoom thiab kev pabcuam rau cov neeg siv khoom.
Lub sijhawm tshaj tawm: Plaub Hlis-03-2023