公开(公告)号：EP0829655B1

公开(公告)日：2004-06-30

申请号：EP97121219.6

申请日：1992-03-13

申请人： KOYO SEIKO CO., LTD. ,  SHIKOKU RESEARCH INSTITUTE INCORPORATED

发明人： Takahata, Ryoichi ,  Shibayama, Motoaki ,  Takaichi, Hiroshi

IPC分类号： F16C39/06

CPC分类号： F16C32/0438 ,  F16C2240/40 ,  F16C2300/34

公开(公告)号：EP0829655A1

公开(公告)日：1998-03-18

申请号：EP97121219.6

申请日：1992-03-13

申请人： KOYO SEIKO CO., LTD. ,  SHIKOKU RESEARCH INSTITUTE INCORPORATED

发明人： Takahata, Ryoichi ,  Shibayama, Motoaki ,  Takaichi, Hiroshi

IPC分类号： F16C39/06

CPC分类号： F16C32/0438 ,  F16C2240/40 ,  F16C2300/34

摘要： A superconducting bearing device comprises an annular permanent magnet portion 2 disposed concentrically with a rotary body 1 in the form of a vertical shaft, and superconductors 8 opposed to the lower end face of the magnet portion 2 and vertically spaced apart therefrom. The permanent magnet portion 2 comprises a disk 4 fixedly mounted on the rotary body 1, and annular permanent magnets 6a, 6b arranged on the disk 4 at a spacing radially of the rotary body 1. Each of the magnets 6a, 6b has upper and lower ends magnetized to polarities opposite to each other, and the adjacent magnets 6a, 6b are magnetized to polarities opposite to each other at the upper ends, as well as at the lower ends. The radial spacing between the magnets 6a, 6b is optimized in accordance with the radial dimension (width) of the magnets 6a, 6b. This improves the device in load capacity and rigidity and prevents the deflection of axis of the rotary body 1, enabling the bearing device to support the rotary body 1 in a noncontact state with good stability.

摘要翻译： 超导轴承装置包括与垂直轴形式的旋转体1同心设置的环形永磁体部分2和与磁体部分2的下端面相对并与其垂直间隔开的超导体8。 永磁体部分2包括固定地安装在旋转体1上的盘4和以旋转体1的径向间隔布置在盘4上的环形永磁体6a，6b。每个磁体6a，6b具有上下 端部被磁化成彼此相反的极性，并且相邻的磁体6a，6b在上端以及在下端被磁化成彼此相反的极性。 磁体6a，6b之间的径向间隔根据磁体6a，6b的径向尺寸（宽度）而优化。 这提高了装置的负载能力和刚性，并且防止旋转体1的轴线的偏转，使得轴承装置能够以非常接触的状态将旋转体1支撑在良好的稳定性上。