Embedded magnetic-gas hybrid bearing

By designing an embedded magnetic-gas hybrid bearing including air-floating bearing stop ring, outer support structure, corrugated foil, top foil, magnetic-suspended bearing stator, magnetic-gas hybrid bearing seat, stator coil and internal support structure, the problems of complex processing technology of existing embedded magnetic-gas hybrid bearings and poor reusability of air-gas hybrid bearings are solved, and higher load-bearing capacity, wider working range and lower power consumption are achieved.

CN119755198AActive Publication Date: 2025-04-04DALIAN UNIV OF TECH
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Patent Information

Application Number
CN202411953648.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-04-04
Estimated Expiration
2044-12-27

AI Technical Summary

Technical Problem

The existing embedded magnetic-gas hybrid bearings have complex processing technology and poor reusability of the air-floating bearing parts, which makes them difficult to repair.

Method used

An embedded magnetic hybrid bearing including an air-floating bearing stop ring, an outer support structure, a corrugated foil, a top foil, a magnetic suspension bearing stator, a magnetic-air hybrid bearing seat, a stator coil and an inner support structure is designed. The processing technology is simplified by the disassembly and fixation of the outer support structure and the inner support structure, and the reusability of the air-floating bearing is improved through the design of the foil structure.

Benefits of technology

It improves the bearing capacity and working range, reduces the continuous operation power consumption of the bearing, simplifies structure and installation and maintenance, and improves the reusability and repair difficulty of air-floating bearings.

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Abstract

The invention provides an embedded magnetic-gas hybrid bearing, and belongs to the field of bearings. The problems that an existing embedded magnetic-gas hybrid bearing is complex in machining process, and an air bearing part is poor in reusability and difficult to repair are solved. Comprising an inner supporting structure and an outer supporting structure which are embedded into the two sides of the magnetic-gas hybrid bearing seat, an outer supporting tooth-shaped table of the outer supporting structure is inserted between stator magnetic poles of the magnetic suspension bearing and spliced with an inner supporting tooth-shaped table of the inner supporting structure to form a complete cylindrical surface, and a corrugated foil wraps a top foil and is arranged in the spliced cylindrical surface. The shaft neck can be prevented from being in direct contact with the magnetic pole, and the working rotating speed range and the adaptive load of the magnetic suspension bearing and the air bearing are expanded; a protective bearing of the magnetic suspension bearing is replaced by the air bearing, so that the axial length of the rotor is reduced, and the shafting stability is improved; and installation and maintenance are convenient.
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