Lifting unit for lifting a rotor of a wind energy installation
US8807611B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49316
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is provided a lifting unit for lifting a rotor of a wind power installation. The lifting unit has at least one first sling for looping around a region of a rotor blade on a rotor of the wind power installation, which region is near the rotor blade root, at least one transverse strut, at least one first and second strut or sling portion, and at least one first and second hinge unit. The at least one first and second struts or sling portions extend between the at least one first and second hinge units and the transverse strut. The lifting unit further has at least one second sling having first and second sling portions and a strut. The first ends of the first and second sling portions are fixed to the first and second hinge units. The second sling is adapted to be arranged around a rotor blade stub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.