Lub servo lub cev muaj zog yog hais txog lub tshuab hluav taws xob uas tswj kev ua haujlwm ntawm cov khoom siv tshuab hauv servo system. Nws tuaj yeem muab faib ua ob hom: DC servo motors thiab AC servo motors. Qhov sib txawv ntawm ob hom servo motors yog qhov tseem ceeb hauv cov hauv qab no:
1. Cov qauv sib txawv
Cov qauv ntawm AC servo lub cev muaj zog zoo ib yam li AC asynchronous lub cev muaj zog. Muaj ob txoj hlua hluav taws xob thiab kev tswj xyuas winding ntawm lub stator nrog rau theem chaw hloov chaw ntawm 90 degree hluav taws xob lub kaum sab xis. Lawv txuas nrog rau qhov tsis tu ncua AC voltage thiab siv cov kev hloov hauv AC voltage lossis theem siv rau cov windings los tswj kev ua haujlwm ntawm lub cev muaj zog.
Cov qauv ntawm DC servo lub cev muaj zog zoo ib yam li DC lub cev muaj zog, suav nrog lub stator, rotor hlau tub ntxhais, lub cev muaj zog ncej, servo motor winding commutator, servo motor winding, ceev lub cev muaj zog winding, thiab ceev lub cev muaj zog commutator. Lub rotor hlau tub ntxhais yog tsim los ntawm silicon steel laminations laminated thiab tsau rau ntawm lub cev muaj zog ncej.
2. Lub hauv paus ntsiab lus txawv
Lub stator peb-theem kauj ntawm AC servo lub cev muaj zog yog siv los ntawm servo coding tswj Circuit Court, thiab lub rotor yog hlau nplaum ruaj khov. Cov kev taw qhia, ceev, thiab lub kaum sab xis ntawm lub cev yog txiav txim los ntawm tus coding controller.
Lub rotor ntawm DC servo lub cev muaj zog kuj yog ua los ntawm cov hlau nplaum ruaj khov, thaum lub stator winding yog siv los ntawm servo encoded mem tes circuit.
3. Kev faib tawm txawv
DC servo motors tau muab faib ua ob hom raws li qhov muaj lossis tsis muaj cov txhuam hniav: txhuam DC servo motors thiab brushless DC servo motors; AC servo motors belongs rau brushless motors, uas tau muab faib ua synchronous thiab asynchronous motors.
4. Cov kev tswj sib txawv
Muaj peb txoj kev tswj hwm rau AC servo motors: amplitude tswj, theem tswj, thiab amplitude theem tswj; Muaj ob txoj hauv kev tswj xyuas tseem ceeb rau DC servo motors: armature voltage control thiab excitation field control.
5. Cov nqi kho mob sib txawv
Kev saib xyuas yooj yim ntawm kev sib txuas lus servo motors; DC servo motors yog ib qho yooj yim kom ua tiav cov kev cai ceev thiab kev tswj xyuas siab, tab sis lawv muaj cov nqi tu siab thiab ua haujlwm nyuaj.
6. Cov yam ntxwv sib txawv
Cov yam ntxwv ntawm AC servo motors yog qhov muag muag. Thaum lub ntsuas torque tau mus txog, yog tias lub load torque nce, nws yog ib qho yooj yim los ua rau tam sim ntawd. Txawm li cas los xij, DC motors muaj cov lus teb ceev ceev, pib lub zog loj, thiab muaj peev xwm muab cov ntsuas torque los ntawm xoom nrawm mus rau qhov ntsuas ceev. Txawm hais tias AC motors tsis muaj carbon txhuam thiab rectifiers, lawv muaj kev saib xyuas dawb, ruaj khov, thiab siv dav. Txawm li cas los xij, txhawm rau ua tiav kev ua tau zoo sib npaug rau DC motors ntawm cov yam ntxwv, kev tswj xyuas kev siv tshuab yuav tsum tau ua.
