Yuav ua li cas stepper motors qeeb?

Stepper motorsyog cov khoom siv hluav taws xob electromechanical uas ncaj qha hloov hluav taws xob impulses rau hauv cov tshuab hluav taws xob. Los ntawm kev tswj cov kab ke, zaus thiab tus naj npawb ntawm cov hluav taws xob impulses siv rau lub cev muaj zog coils, stepper motors tuaj yeem tswj tau rau lub kauj, ceev thiab lub kaum sab xis ntawm kev sib hloov. Yog tsis muaj kev pab los ntawm lub kaw-loop tawm tswv yim tswj qhov system nrog rau txoj hauj lwm sensing, meej txoj hauj lwm thiab ceev tswj yuav ua tau tiav los ntawm kev siv ib tug yooj yim, uas tsis muaj nqi qhib-loop tswj system uas muaj xws li ib tug stepper lub cev muaj zog thiab nws nrog tus tsav tsheb.

Stepping lub cev muaj zog raws li ib tug thawj coj, yog ib qho ntawm cov khoom tseem ceeb ntawm mechatronics, dav siv nyob rau hauv ntau yam automation tswj systems. Nrog rau txoj kev loj hlob ntawm microelectronics technology thiab precision manufacturing technology, qhov kev thov rau stepper motors yog nce nyob rau hauv ib hnub, thiab stepper motors thiab gear kis mechanism ua ke nrog gearboxes, kuj nyob rau hauv ntau thiab ntau daim ntawv thov scenarios pom, niaj hnub no thiab txhua leej txhua tus to taub hom gearbox kis mechanism.

Yuav ua li cas deceleratestepper lub cev muaj zog?

Raws li kev siv ntau thiab siv dav siv tsav tsav, stepper lub cev muaj zog feem ntau yog siv ua ke nrog cov khoom siv deceleration kom ua tiav cov txiaj ntsig zoo tshaj plaws; thiab feem ntau siv deceleration cov cuab yeej thiab txoj kev rau stepper lub cev muaj zog xws li deceleration gearboxes, encoders, controllers, mem tes signals thiab hais txog.

Pulse teeb liab deceleration: stepper lub cev muaj zog ceev, yog raws li cov tswv yim pulse teeb liab hloov pauv. Theoretically, muab tus tsav tsheb mem tes, lubstepper lub cev muaj zogtig lub kaum sab xis (subdivided rau lub kaum sab xis subdivided). Nyob rau hauv kev xyaum, yog hais tias tus mem tes teeb liab hloov sai heev, lub stepper lub cev muaj zog, vim lub damping nyhuv ntawm lub internal reverse electromotive quab yuam, sib nqus cov tshuaj tiv thaiv ntawm lub rotor thiab stator yuav tsis muaj peev xwm ua raws li cov kev hloov nyob rau hauv cov hluav taws xob teeb liab, uas yuav ua rau thaiv thiab kauj ruam poob.

Kev txo qis iav lub thawv deceleration: stepper lub cev muaj zog nruab nrog lub thawv txo qis siv ua ke, lub tshuab stepper lub cev muaj zog tso zis siab ceev, qis torque ceev, txuas nrog txo cov iav kem, iav kem sab hauv txo qis zog mesh kis tau tus mob tsim los ntawm kev txo qis, stepper lub cev muaj zog tso tawm ntawm kev kub ceev txo, thiab txhim khu kev sib kis torque, kom ua tiav cov txiaj ntsig zoo tshaj plaws; Cov nyhuv deceleration nyob ntawm lub iav lub thawv txo qhov sib piv, qhov ntau dua qhov txo qis, qhov me dua qhov tso zis ceev, thiab lwm yam. Cov nyhuv ntawm deceleration nyob ntawm lub gearbox txo qhov sib piv, qhov loj dua qhov txo qis, qhov me me qhov tso zis ceev thiab vice versa.

Curve exponential tswj ceev: exponential nkhaus, nyob rau hauv lub software programming, thawj xam ntawm lub sij hawm tas li khaws cia rau hauv lub computer nco, ua hauj lwm taw tes rau kev xaiv. Feem ntau, lub sij hawm acceleration thiab deceleration kom tiav lub stepper lub cev muaj zog yog ntau tshaj 300ms. Yog hais tias koj siv luv acceleration thiab deceleration lub sij hawm, rau feem coob ntawmstepper motors, nws yuav nyuaj rau kev ua tiav high-ceev kev sib hloov ntawm stepper lub cev muaj zog.

Encoder-tswj deceleration: PID tswj, raws li ib qho yooj yim thiab tswv yim tswj txoj kev, tau dav siv nyob rau hauv stepper tsav tsav. Nws yog raws li tus nqi muab r (t) thiab qhov tseeb tso tawm tus nqi c (t) ua tus tswj kev sib txawv e (t), qhov sib txawv ntawm cov proportional, integral thiab sib txawv los ntawm kev sib xyaw ua ke ntawm kev tswj kom muaj nuj nqis, tswj cov khoom tswj. Kev sib koom ua ke ntawm txoj haujlwm sensor yog siv nyob rau hauv ob-theem hybrid stepper lub cev muaj zog, thiab nws pib-adjustable PI ceev maub los yog tsim los ntawm lub hauv paus ntawm txoj hauj lwm ntes thiab vector tswj, uas tuaj yeem muab cov yam ntxwv zoo nyob rau hauv kev ua haujlwm sib txawv. Raws li tus qauv lej ntawm lub cev muaj zog stepper, PID tswj qhov system ntawm stepper lub cev muaj zog yog tsim, thiab PID tswj algorithm yog siv kom tau txais kev tswj kom muaj nuj nqis, thiaj li tswj lub cev muaj zog txav mus rau qhov chaw teev tseg.

Thaum kawg, kev tswj xyuas tau txheeb xyuas los ntawm kev simulation kom muaj cov yam ntxwv zoo dynamic teb. Kev siv PID maub los muaj qhov zoo ntawm cov qauv yooj yim, robustness, kev ntseeg tau thiab lwm yam, tab sis nws tsis tuaj yeem ua haujlwm zoo nrog cov ntaub ntawv tsis meej hauv lub cev.