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US 12,584,465 B2Granted
Multiple up-tower lifting appliances on wind turbines
OwnerGlen D. Aitkeninventor
Life of this patent
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Abstract
A nacelle-mounted multiple-appliance lift system has a first lifting appliance and a second lifting appliance mounted in a nacelle of a wind turbine. The first and second lifting appliances are each mounted on main bearing housing securements, gearbox pillow blocks, or both the main bearing housing securements and the gearbox pillow blocks. The first and second lifting appliances share one or both of the main bearing housing securements and the gearbox pillow blocks.
Claims9
A method of assembling a nacelle-mounted multiple-appliance lift system to a nacelle of a wind turbine, the method comprising:
- mounting a portion of a common support for lifting appliances to the nacelle of the wind turbine;
- mounting a first lifting appliance on the portion of the common support;
- assembling the common support to the nacelle, the assembled common support comprising:
- at least two pillow block bridges secured to at least two of a plurality of gearbox pillow blocks and spaced apart transversely in the nacelle;
- and,
- longitudinal and transverse beams supported on the at least two of the plurality of gearbox pillow blocks;
- operating the first lifting appliance to lift a second lifting appliance into the nacelle;
- mounting the second lifting appliance on at least a portion of the common support;
- operating at least the second lifting appliance to lift a third lifting appliance into the nacelle;
- mounting the third lifting appliance on the common support;
- operating at least the third lifting appliance to lift a fourth lifting appliance into the nacelle;
- and,
- mounting the fourth lifting appliance on the common support.
10 more elements
Dependencies are inferred from the claim text.