Piezoelectric ultrasonic motors ine maviri akakosha mabhenefiti, ayo akanyanya simba density uye yakareruka chimiro, ayo ese ari maviri anobatsira kuminiaturization yavo.Isu takavaka prototype micro ultrasonic mota tichishandisa stator ine huwandu hunosvika cubic millimeter.Kuedza kwedu kwakaratidza kuti prototype mota inogadzira torque inopfuura gumi μNm ine imwe cubic millimeter stator.Iyi novel mota ikozvino ndiyo diki micro ultrasonic mota iyo yakagadziridzwa ine inoshanda torque.
Micro actuators inodiwa kune akati wandei maapplication, kubva panharembozha uye inopfekwa midziyo kusvika kune ishoma invasive michina yekurapa.Nekudaro, izvo zvinogumira zvine chekuita nekugadzirwa kwavo zvakadzora kutumirwa kwavo pachiyero chemirimita imwe.Iwo anonyanya kuzivikanwa emagetsi emagetsi anoda miniaturization yezvinhu zvakawanda zvakaoma senge coils, magineti, uye mabhengi, uye anoratidza yakanyanya torque dissipation nekuda kwekuyera.Electrostatic motors inogonesa scalability yakanakisa nekushandisa microelectromechanical system (MEMS) tekinoroji, asi simba ravo rekutyaira risina simba rakaganhurira kuenderera mberi kwavo.
Piezoelectric ultrasonic motors inotarisirwa kuve yakakwira-performance micromotors nekuda kweiyo yakakwirira torque density uye zviri nyore zvikamu.Iyo diki diki iripo ultrasonic mota yakataurwa kusvika parizvino ine metallic component ine dhayamita ye0.25 mm uye kureba kwe1 mm.Nekudaro, saizi yayo yese, kusanganisira iyo preload mechanism, inosvika 2-3 mm, uye kukosha kwayo kwetorque idiki kwazvo (47 nNm) kuti ishandiswe seactuator mune akawanda maapplication.
Tomoaki Mashimo, muongorori weToyohashi University of Technology, ave achigadzira micro ultrasonic motor ine imwe cubic millimeter stator, sezvakaratidzwa muFig.Iyo stator, iyo inosanganisira simbi cube ine kuburikidza-gomba uye ndiro-piezoelectric zvinhu zvakanamirwa kumativi ayo, inogona kuderedzwa pasi isingade chero yakakosha machining kana nzira dzemagungano.Iyo prototype micro ultrasonic mota yakawana torque inoshanda ye10 μNm (Kana iyo pulley iine radius ye1 mm, mota inogona kusimudza huremu hwe1-g) uye angular velocity ye3000 rpm inosvika makumi manomwe Vp-p.Iyi torque kukosha yakakura ka200 pane iyo iripo micro motors, uye inoshanda zvakanyanya pakutenderedza zvinhu zvidiki senge ma sensors madiki uye mekiniki zvikamu.
Nguva yekutumira: Feb-27-2018