Title:
【発明の名称】シャフトに加わる半径方向の力を受け止める永久磁石を備えた磁気軸受装置
Document Type and Number:
Japanese Patent JP3121819
Kind Code:
B2
Abstract:
A magnetic bearing with permanent magnets for absorption of the radial bearing stresses and with a stabiliser is specified for a rotor, which stabiliser holds the rotor in a position relative to the stator such that it does not make contact. Mounted on the stator for this purpose there are electric coils which interact with parts which can be magnetised but are fitted on the rotor. In order to render the bearing as independent as possible from the spatial orientation of the rotor axis and from deformation of the housing, in the region of the rotor centre of gravity (Figure 1, reference symbol 4) there is arranged a centre of gravity bearing (5) with a comparatively high radial stiffness and, at another point of the rotor 1, a stabilisation bearing (7) having a low radial stiffness in comparison with the centre of gravity bearing. The centre of gravity bearing (5) supports the majority of the rotor weight, the stabilisation bearing (7) essentially takes over the static and dynamic stabilisation of the complete system.
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Inventors:
Johann Kah Fremeley
Application Number:
JP5652489A
Publication Date:
January 09, 2001
Filing Date:
March 10, 1989
Export Citation:
Assignee:
Forschungszentrum Jürich Gesellschaft Mito Beschlenktel Haftung
International Classes:
D01H4/12; F16C39/02; F16C32/04; F16C39/06; H02K7/09; (IPC1-7): F16C32/04; H02K7/09
Domestic Patent References:
| JP60208630A | ||||
| JP6032581A | ||||
| JP5578903U |
Attorney, Agent or Firm:
Mitsufumi Ezaki