Permanent magnetic suspension bearing provided with magnet protection structure
A magnetic levitation bearing and protective structure technology, applied in the field of bearings, can solve problems affecting the service life of magnetic bearings
Active Publication Date: 2019-01-29
MAGNA MAGNETOMOTIVE CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
In addition, for magnetic suspension bearings used in ships or underwater equipment, the magnetic steel is easy to contact with corrosive liquids such as sea water, which affects the service life of the magnetic bearings. The design of the bearing structure under harsh working conditions has not been resolved.
Method used
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Embodiment Construction
[0025] Hereinafter, an embodiment of the permanent magnetic suspension bearing provided with a magnet protection structure of the present invention will be described with reference to the accompanying drawings.
[0026] The embodiments described herein are specific specific implementations of the present invention, which are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the implementation exceptions described here, those skilled in the art can also adopt other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include adopting any obvious changes to the embodiments described herein. Technical solutions for replacement and modification.
[0027] The drawings in this specification are schematic diagrams to assist i...
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The invention discloses a permanent magnetic suspension bearing provided with a magnet protection structure. The permanent magnetic suspension bearing comprises bearing stators, magnetic sucking devices, bearing rotors and auxiliary bearings. Rotor mounting cavities are formed in the bearing stators. Magnet mounting grooves are formed in the inner walls of the bearing stators. The magnetic suckingdevices are composed of magnet bodies, partitioning pieces and magnetic yoke iron. The partitioning pieces are non-magentic-conductive materials. The partitioning pieces are arranged between adjacentmagnet bodies. The magnetic yoke iron is arranged between adjacent partitioning pieces in a sealing mode. The magetic sucking devices are fixed into the magnet mounting grooves. The bearing rotors are magnetic-conductive materials. The bearing rotors are mounted in the rotor mounting cavities of the bearing stators. The auxiliary bearings are arranged at at least one end of the bearing rotors, and are mounted between the bearing stators and the beating rotors. Magnet bodies are mounted in the sealing spaces formed by the magnetic yoke, the partitioning pieces and the bearing stator, and therefore contact with the external environment is avoided. Application sites of the bearing are increased, and the bearing is suitable for being used in worse working stations.
Description
Technical field [0001] The invention belongs to the technical field of bearings, and particularly relates to a permanent magnetic suspension bearing provided with a magnet protection structure. Background technique [0002] In the field of traditional heavy-duty bearings, the load of the bearing is closely related to the allowable linear speed of the bearing, the life of the bearing and the cooling method of the bearing. The increase in load will reduce the service life of the bearing, limit the allowable speed of the bearing, and provide necessary facilities and installation conditions for the cooling and replacement of the bearing. [0003] Magnetic suspension bearing is a kind of bearing that uses magnetic force to realize the frictionless bearing of bearing moving parts and relatively static parts. Restricted by conditions such as materials and power sources, magnetic bearings are only implemented in areas where frictionless or low friction is required and the load is small. ...
Claims
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IPC IPC(8): F16C32/04
CPCF16C32/041
Inventor 马忠威曹丛磊关怡馨郑江王文慧陈德民
Owner MAGNA MAGNETOMOTIVE CO LTD