MAGNETIC BEARING APPARATUS

Provided is a magnetic bearing device capable of correcting the inclination of a rotating body with a small magnetic force and also stably supporting the rotating body. The magnetic bearing device comprises: a non-magnetic ring (1) made of a non-magnetic material; and at least three axial magnetic p...

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Bibliographische Detailangaben
Hauptverfasser: TANAKA KUNIHIKO, KAKESU YU, BARADA TOSHIMITSU
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:Provided is a magnetic bearing device capable of correcting the inclination of a rotating body with a small magnetic force and also stably supporting the rotating body. The magnetic bearing device comprises: a non-magnetic ring (1) made of a non-magnetic material; and at least three axial magnetic poles (5) arranged along the circumferential direction of the non-magnetic ring (1). Each axial magnetic pole (5) comprises: a coil (10) in the shape of an arc; and a coil housing (12) accommodating the coil (10). At least three axial magnetic poles (5) are fixed to the non-magnetic ring (1). 작은 자기 인력으로 회전체의 기울기를 수정할 수 있고, 또한 회전체를 안정되게 지지할 수 있는 자기 베어링 장치를 제공한다. 자기 베어링 장치는, 비자성 재료로 구성된 비자성 링(1)과, 비자성 링(1)의 둘레 방향을 따라 배열된 적어도 3개의 액셜 자극(5)을 구비하고 있다. 각 액셜 자극(5)은, 원호상의 코일(10)과, 코일(10)을 수용하는 코일 하우징(12)을 구비하고 있고, 적어도 3개의 액셜 자극(5)은, 비자성 링(1)에 고정되어 있다.