Diagnostic method for predicting maintenance requirements in rotating equipment
US7206719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/37435
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This invention is a method to determine the condition of rotating equipment, namely drive spindles, to enable the timely maintenance or replacement of same. The method uses an electrical signal from a vibration sensor mounted on part of the drive train to measure the level of vibration energy when the equipment is rotating under loaded and unloaded conditions. The relative vibration under the loaded and unloaded conditions is used as an indicator of equipment condition. Typically there is more vibration under load when the equipment is in good condition. When the level of vibration under the no-load condition matches or exceeds that seen under load, the equipment needs to be serviced or replaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.