| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic gear device, capable of restricting deterioration of transmission efficiency or transmittable torque due to enlargement of a magnet retaining mechanism following enlargement (in diameter) and high speed rotation operation. SOLUTION: The device comprises an input side magnetic gear 2, comprising a plurality of magnets 3, circularly disposed around the axial line of an input rotation shaft 1, with its magnetic force generating surface directed in the axial direction, and an output side magnetic gear 6, comprising a plurality of magnets 5, circularly disposed around the axial line of an output rotation shaft 7, and they are arranged with their magnetic generating surfaces facing each other. A plurality of magnetic passage members 4 of electromagnetic steel are circularly provided to be fixed between the magnetic generating surfaces facing each other to exist between the magnet 3 and the magnet 5. The magnets 3 and 5 are restrained by a fixing part from the diametrically outer side of the respective magnetic gears 2 and 6. COPYRIGHT: (C)2009,JPO&INPIT
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