Foil bearing
By constructing spaced slots on the inner circumferential wall of the bearing housing and forming inserts on the foil, the problem of insufficient stiffness in multi-leaf radial elastic foil bearings is solved, achieving higher load-bearing stiffness and damping performance.
CN122407677APending Publication Date: 2026-07-17GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2026-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing multi-leaf radial elastic foil bearings have a large span between the support points due to the presence of a fixed end and a free end on each foil, resulting in limited load-bearing stiffness of the foil itself.
Method used
First and second slots are constructed at intervals on the inner peripheral wall of the bearing housing, and corresponding first and second inserts are formed on the bearing foil, so that the foil is fixed at two points with a certain interval on the bearing housing, thereby enhancing the rigidity of the bearing foil.
Benefits of technology
By enhancing the contact points between the foil and the bearing housing, the load-bearing stiffness and damping performance of the foil bearing are improved, ensuring smooth rotor operation.
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Smart Images
Figure CN122407677A_ABST
Abstract
本发明提供一种箔片轴承，属于高性能轴承，包括轴承座和承载箔片，轴承座的内周壁上构造有第一插槽组，第一插槽组包括第一插槽和第二插槽，以轴承座的周向为第一参考方向，第一插槽、第二插槽在轴承座的内周壁上沿第一参考方向间隔分布，承载箔片上形成有第一插片和第二插片，承载箔片设置在轴承座的内周壁上，第一插片插接在第一插槽内，第二插片插接在第二插槽内。根据本发明，当承载箔片在轴承座上装配好之后，承载箔片上的第一插片会插接在轴承座的第一插槽内，承载箔片上的第二插片会插接在轴承座的第二插槽内，则承载箔片具有一定间隔的两处被固定，从而可以提升承载箔片的承载刚度，进而可以提升箔片轴承的承载刚度。
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