System and method for in-situ resurfacing of a wind turbine main rotor shaft
US9757821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Mar 18, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/728
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method is provided for in-situ resurfacing of a main rotor shaft of a wind turbine, wherein in an operational state, the main rotor shaft is coupled at a first end to a rotor hub and at the opposite second end to a gearbox or directly to a generator within a nacelle. The method includes uncoupling the rotor shaft from the gearbox or generator so as to expose an end face of the second end of the rotor shaft. A fixture is attached to the exposed end face concentric with the rotational axis of the rotor shaft. A lathe system in then attached to the fixture. The rotor shaft surface adjacent to the exposed end is machined with the lathe system such that the resurfaced portion of the rotor shaft surface is brought to a round state concentric with the rotational axis of the rotor shaft. The method is conducted within the nacelle with the first end of the rotor shaft remaining coupled to the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.