Title:
超電導軸受
Document Type and Number:
Japanese Patent JP2659747
Kind Code:
B2
Abstract:
PURPOSE:To eliminate a problem of sliding friction so as to eliminate troubles with a simple structure by using a superconductive bearing cooled by a cryostats in a high-vacuum device so as to magnetically support a rotary shaft made from a permanent magnet. CONSTITUTION:A superconductive bearing 1 made of a superconductor and having a bevel shape is disposed in a liquid nitrogen shroud 3 and is held at a temperature below a critical temperature of TC.deg. under liquid nitrogen LN having a temperature of 77K. A rotary bearing support section 4 is supported by a magnetic force due to a Meissner effect so as to float up by about 1mm. A drive shaft 4 coupled to the support section 2 and a base plate holder 5 float up under magnetic force. Thus, it is possible to eliminate occurrence of troubles, thereby it is possible to greatly enhance the operation rate of an expensive apparatus.
Inventors:
SATO HIROYA
Application Number:
JP8244788A
Publication Date:
September 30, 1997
Filing Date:
April 04, 1988
Export Citation:
Assignee:
SHAAPU KK
International Classes:
H01L39/00; F16C32/04; F16C37/00; H02K55/00; (IPC1-7): F16C32/04; F16C37/00; H01L39/00; H02K55/00
Domestic Patent References:
| JPH0198709A |
Attorney, Agent or Firm:
杉山 毅至 （外１名）