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    • 3. 发明专利
    • Thrust bearing of superconducting flywheel device
    • 超声波飞行器装置的轴承
    • JPH11280764A
    • 1999-10-15
    • JP8108498
    • 1998-03-27
    • Chubu Electric Power Co IncMitsubishi Heavy Ind Ltd三菱重工業株式会社中部電力株式会社
    • NAGAYA SHIGEOMINAMI MASAHARUKAWASHIMA YUTAKA
    • H02J15/00F16C32/04H02K7/02H02K7/09
    • F16C32/0438F16C15/00F16C2361/55
    • PROBLEM TO BE SOLVED: To restrain deformation by centrifugal force, and uniformly hold clearance between thrust bearings by vertically symmetrically installing permanent magnet assemblies on the upper side and the lower side of a thrust collar so that both centrifugal forces become the same with each other. SOLUTION: When operating a superconducting flywheel, centrifugal force FRu of an upper side permanent magnet assembly 60b and centrifugal force FRd of a lower side permanent magnet assembly 60a become the same with each other since weight, a shape and an installing position of these magnet assemblies 60b, 60a are equal to each other, and laterally uniformly act on the cylindrical part 5a of a thrust collar 5 since the assemblies are vertically symmetrically installed in the disk part 5b. The comparatively thin cylindrical part 5a is vertically uniformly bent in the outer peripheral direction over both ends from the root to the central disk part 5b by these centrigugal forces FRu , FRd , and does not deviate to the upper side like a conventional product. Therefore, clearance between the permanent magnet assembly 60a and a superconducting bulk body is also uniformized over the bearing inner/outer periphery to prevent reduction in bearing performance.
    • 要解决的问题:为了通过离心力抑制变形,并且通过在推力轴环的上侧和下侧上垂直对称地设置永磁体组件,使得两个离心力彼此相同,从而均匀地保持推力轴承之间的间隙。 解决方案:当操作超导飞轮时,上侧永磁体组件60b的离心力FRu和下侧永磁体组件60a的离心力FRd彼此相同,因为这些磁体组件的重量,形状和安装位置 60b,60a彼此相等,并且横向均匀地作用在止推环5的圆柱形部分5a上,因为组件垂直对称地安装在盘部分5b中。 相对较薄的圆柱形部分5a通过这些中心力FRu,FRd从根部到中心盘部分5b的两端沿外周方向垂直均匀地弯曲,并且如常规产品不偏离上侧。 因此,永磁体组件60a与超导体本体之间的间隙在轴承内/外周上也是均匀的,以防止轴承性能的降低。
    • 6. 发明专利
    • PRODUCTION OF SUPERCONDUCTOR
    • JPH08283091A
    • 1996-10-29
    • JP8676895
    • 1995-04-12
    • CHUBU ELECTRIC POWERMITSUBISHI HEAVY IND LTD
    • NAGAYA SHIGEOHIRANO NAOKITAKENAKA MAKOTOMINAMI MASAHARUKAWASHIMA YUTAKASATO TATSUYA
    • C30B11/14C22C1/00C30B29/22
    • PURPOSE: To produce a superconductor having good conductivity in its circumferential and axial directions by melting a metal oxide used as a superconductor material and forming the superconductor having crystal axes each of which is directed toward the center of the superconductor in the radial direction through using a specific means. CONSTITUTION: In this production, metal oxide (e.g. YBa2 Cu3 Ox ) used as a material for a superconductor 1 is melted and then, plural seed crystals 2 (e.g. MgO) are placed on the periphery of the molten metal oxide so that each of the crystal axes of the seed crystals 2 is directed toward the center of the molten metal oxide in the radial direction and thereafter, cooled and solidified to form the superconductor 1 having crystal axes each of which is directed toward the center of the superconductor 1 in the radial direction. That is, when the seed crystals 2 are present, a crystal of the superconductor 1 is formed in the direction corresponding to the crystal axis of each of the seed crystals 2 and the crystal grows into a crystal oriented to the same direction as this direction in the peripheral part of each of the seed crystals 2 to form the superconductor 1 having good conductivity in both of two directions which orthogonally intersect each of the crystal axes.