Device for mounting blades on a propeller hub with preloading of the bearings
US7192255B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/43
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This device for mounting a propeller blade in a hub, of the type in which a blade base is mounted in rotation in a hub housing by means of at least two bearings and where a preloading device permitting axially preloading the two bearings comprises a holding ring mounted between one of the two bearings and hub so as to allow an axial displacement of ring relative to hub, in that holding ring is mounted rotatingly between bearing and hub by means of rolling elements and helical tracks arranged to drive an axial displacement of ring during rotation of this ring, means being provided to cause ring to rotate according to a predefined law.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.