Ama-motor ultrasonic e-piezoelectric anezinzuzo ezimbili ezibalulekile, okungukuthi amandla awo aphezulu kanye nesakhiwo sawo esilula, omabili afaka isandla ekwenzeni kwawo okuncane.Sakhe i-prototype motor ultrasonic esebenzisa i-stator enevolumu cishe eyi-cubic millimeter eyodwa.Ukuhlola kwethu kubonise ukuthi i-motor prototype ikhiqiza i-torque engaphezu kuka-10 μNm nge-cubic millimeter stator eyodwa.Le moto yenoveli manje isiyinjini encane kunazo zonke ye-ultrasonic eyenziwe ngetorque esebenzayo.
Ama-activator amancane ayadingeka ezinhlelweni eziningi, kusukela kumadivayisi aphathwayo nagqokekayo kuya kumishini yezokwelapha ehlasela kancane.Kodwa-ke, ukulinganiselwa okuhlotshaniswa nokwakhiwa kwazo kukhawulele ukuthunyelwa kwazo esikalini semilimitha eyodwa.Amamotho kagesi ajwayelekile kakhulu adinga ukwenziwa kancane kwezingxenye eziningi eziyinkimbinkimbi njengamakhoyili, omagnethi, nama-bearings, futhi abonise ukushabalala kwetorque okunzima ngenxa yokukalwa.Amamotho e-Electrostatic anika amandla ukuqina okuhle kakhulu ngokusebenzisa ubuchwepheshe be-microelectromechanical systems (MEMS), kodwa amandla awo okushayela abuthaka akhawulele ukuthuthuka kwawo okuqhubekayo.
Ama-piezoelectric ultrasonic motors kulindeleke ukuthi abe ama-micromotor asebenza kakhulu ngenxa yobuningi bawo be-torque ephezulu kanye nezingxenye ezilula.Injini encane ye-ultrasonic ekhona ebikwe kuze kube manje inengxenye eyinsimbi enobubanzi obungu-0.25 mm nobude obungu-1 mm.Nokho, usayizi wayo ophelele, okuhlanganisa indlela yokulayisha kuqala, ifinyelela ku-2-3 mm, futhi inani layo letorque lincane kakhulu (47 nNm) ukuthi lingasetshenziswa njenge-actuator ezinhlelweni eziningi.
U-Tomoaki Mashimo, umcwaningi e-Toyohashi University of Technology, ubelokhu enza i-micro ultrasonic motor ene-cubic millimeter stator eyodwa, njengoba kuboniswe ku-Fig. 1, futhi ingenye yezimoto ezincane kakhulu ze-ultrasonic ezake zakhiwa.I-stator, ehlanganisa i-metallic cube enembobo ephumela kanye ne-plate-piezoelectric elements enamathele ezinhlangothini zayo, ingancishiswa ngaphandle kokudinga imishini ekhethekile noma izindlela zokuhlanganisa.I-prototype motor ultrasonic motor ithole itorque engu-10 μNm (Uma i-pulley ine-radius engu-1 mm, injini ingaphakamisa isisindo esingu-1-g) kanye nesivinini se-angular esingu-3000 rpm cishe ku-70 Vp-p.Leli nani letorque likhulu ngokuphindwe izikhathi ezingu-200 kunalelo lamamotho amancane akhona, futhi lisebenza kakhulu ekuzungezeni izinto ezincane njengezinzwa ezincane nezingxenye eziwumshini.
Isikhathi sokuthumela: Feb-27-2018