DC servo lub cev muaj zog ua tiav cov txheej txheem kev tswj hwm kev tswj hwm los ntawm armature voltage lossis magnetic flux tswj. Lawv cov qauv yooj yim zoo ib yam li cov DC motors zoo tib yam, tab sis lawv tau tsim kho kom zoo rau kev tswj hwm qhov kev xav tau, xws li cov qauv tsim qauv kom txo qis inertia rotational.
Cov motors no tau muab faib ua hom txhuam thiab txhuam tsis siv: txhuam motors muaj qhov zoo xws li tus nqi qis thiab kev ceev nrawm, tab sis yuav tsum tau txhuam txhuam; brushless motors ua tiav kev saib xyuas- ua haujlwm dawb los ntawm kev sib hloov hluav taws xob thiab tsim nyog rau kev ua haujlwm siab - daim ntawv thov. Nrog rau lawv cov lus teb ceev ceev, loj pib torque, thiab kev ua haujlwm du, lawv tau siv dav hauv kev tswj automation, muaj neeg hlau, CNC tshuab cuab yeej, thiab lwm yam.
DC servo motors muaj cov hauv qab no cov khoom tseem ceeb:
Stator (Magnetic Field System): Feem ntau siv cov hlau nplaum ruaj khov (xws li neodymium hlau boron) lossis electromagnets. Cov hlau nplaum tas mus li yuav tsum tsis muaj kev txhawb nqa ntxiv, yog qhov me me, thiab muaj txiaj ntsig zoo, nrog cov hlau nplaum sib nqus ncav cuag 0.5 ~ 1.2 Tesla (cov ntaub ntawv los ntawm: Phau Ntawv Hluav Taws Xob Hluav Taws Xob).
Rotor (Armature): Tsim los ntawm laminated silicon steel los xij nrog cov kab sib txuas winding, siv los ntawm cov txhuam hniav uas tiv tauj lub commutator. Lub rotor txoj kab uas hla feem ntau yog li ntawm 20 mus rau 100 mm, ncaj qha cuam tshuam rau cov zis torque.
Commutator thiab Txhuam Txhuam: Lub commutator muaj cov phaj tooj liab thiab ua haujlwm nrog txhuam kom hloov cov kev taw qhia tam sim no. Siab -kev ua tau zoo servo motors siv hlau- graphite txhuam nrog lub neej ntev tshaj 5000 teev (siv: ABB technical white paper).
Sensors (Encoder/Resolver): suav nrog ua-hauv txoj haujlwm tawm tswv yim, xws li photoelectric encoders nrog kev daws teeb meem txog 17 khoom (131072 pulses/revolution), xyuas kom kaw- voj tswj qhov tseeb.