System and method for monitoring the condition of a gear assembly
US7970556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2009 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H1/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for monitoring the condition of a gear assembly analyzes a signal output by a vibration detector that is attached to the gear assembly. Each time that an amplitude of the signal output from the vibration detector exceeds a threshold value, the system assumes that a debris particle has passed between meshing parts of the gear assembly. The number of times that this occurs, and possibly the amplitude of the vibrations are analyzed to determine a condition of the gear assembly, and possibly a damage index. This system and method are particularly applicable to planetary gear arrangements where the vibration detector can be mounted on a fixed ring gear of the gear assembly, or a structure upon which the fixed ring gear is mounted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.