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    • 1. 发明申请
    • 渦電流減速装置
    • EDDY电流减速器
    • WO2003073592A1
    • 2003-09-04
    • PCT/JP2003/000996
    • 2003-01-31
    • 住友金属工業株式会社今西 憲治野口 泰隆平松 慎一朗谷 泰徳山口 博行田坂 誠均齋藤 晃宮原 光雄
    • 今西 憲治野口 泰隆平松 慎一朗谷 泰徳山口 博行田坂 誠均齋藤 晃宮原 光雄
    • H02K49/02
    • H02K49/046H02K2213/09
    • It is an object of the invention to provide an eddy current speed reducer that, though simple in construction, is superior in brake efficiency. Another object is to provide an eddy current speed reducer that has a small switching stoke and is capable of rapid switching. Thus, an eddy current speed reduce according to the invention comprises a brake disk (2) connected to a rotary shaft (1); a plurality of permanent magnets (7) having a magnetic pole surface opposed to the brake disk (2); and a drive mechanism for moving the permanent magnets (7) toward and away from the brake disk (2). Preferably, it further comprises a guide sleeve (3) supported by a nonrotatable structural section not connected to the rotary shaft (1), receiving a holder ring (4) supporting the permanent magnets (7) and opposed to the brake disk (2). And in the guide sleeve (3), a ferromagnetic member (8) is positioned in opposed relationship to the brake disk (2). Alternatively, the whole including the permanent magnets (7) of the guide sleeve (3) and the opposed end surface is constructed of nonmagnetic material.
    • 本发明的目的是提供一种涡流减速器,其结构简单,制动效率优越。 另一个目的是提供一种涡流减速器,其具有小的开关动作并且能够快速切换。 因此,根据本发明的涡流速度减小包括连接到旋转轴(1)的制动盘(2); 具有与制动盘(2)相对的磁极面的多个永磁体(7); 以及用于使永磁体(7)朝向和远离制动盘(2)移动的驱动机构。 优选地,其还包括由不连接到旋转轴(1)的不可旋转结构部分支撑的导向套筒(3),接收支撑永磁体(7)并与制动盘(2)对置的保持环(4) 。 并且在引导套筒(3)中,铁磁部件(8)以制动盘(2)相对的方式定位。 或者,包括引导套筒(3)的永磁体(7)和相对的端面的整体由非磁性材料构成。