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News › Motoarele cu rotor liniar ofera o pozitionare de precizie

Exista in mod curent o mare preocupare (printre pasionatii de electronica si nu numai) pentru masini CNC. Sunt multe discutii aprinse pe forumuri - chiar si la noi in tara - privitoare la construirea de masini de prelucrat in coordonate. Am gasit in acest sens util sa va prezint un articol referitor la un design foarte simplu si novator care aduce cateva avantaje evidente.

Compania Nippon Pulse Motor a lansat o familie de actuatoare cu transmisie directa (denumit in engleza 'Linear Shaft Motors’ - as traduce motor cu arbore liniar), motor care se compune in esenta dintr-un arbore fix "umplut" cu magneti laminati si cu un set de bobine cilindrice care sunt in miscare (denumite in engleza 'Forcer').

Aceste actuatoare inovatoare ofera pozitionare de precizie combinate cu abilitatea de a lucra in modurile viteza-inalta, viteza-redusa sau viteza constanta. Cu o rezolutie a pasului coborand pana la 0.14 nanometri, actuatoarele cu rotor liniar pot fi folosite pentru pozitionare de precizie...

si constructia lor robusta le permite sa opereze in conditii de mediu dure.
Acest nou model de actuator elimina complexitatea mecanica si tolerantele stranse ale actuatoarelor convetionale electromagnetice.

Actuatoarele cu rotor liniar sunt disponibile in modele diferite ale dimensiunii axului acoperind o un domeniu de forta continua de la 0.4 N to 690 N cu un maxim de forta pana la valoarea de 2780N. Dimensiuni de lucru diferite sunt disponibile incepand de la 20 mm pana la 4,6 m.

Viteza maxima de conducere este de 6,5 m/s, si cea minima este de 8 microni/secunda, tinand cont ca teoretic nu ar trebui sa aiba fluctuatii de viteza.

Actuatoarele cu rotor liniar sunt foarte silentioase in functionare datorita absentei frictiunii, deoarece singurul contact mecanic este intre "stator"
si ghidul magnetului liniar.
Absenta mizului din otel elmina viteza unghiulara fluctuanta/neuniforma si reduce greutatea totala. De asemenea elementelor coducatoare mecanice elimina jocul/"cursa moarta".
Site-ul web al producatorului este www.nipponpulse.com
Borsura referitoare la aceasta noua generatie de motoare liniare o gasiti la adresa http://www.nipponpulse.com/products/docs/ShaftMotorBrochure.pdf.

Posted by administrator on Tuesday, May 16, 2006 (17:00:04) (6753 reads) [ Administration ]

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