US 12,000,382 B2
Platform for a hub of a wind turbine
Nicolai Kristoffersen, Vejle (DK)
Assigned to Siemens Gamesa Renewable Energy A/S, Brande (DK)
Filed by Siemens Gamesa Renewable Energy A/S, Brande (DK)
Filed on Mar. 29, 2022, as Appl. No. 17/706,703.
Claims priority of application No. 21167602 (EP), filed on Apr. 9, 2021.
Prior Publication US 2022/0325700 A1, Oct. 13, 2022
Int. Cl. F03D 80/50 (2016.01); E04G 3/24 (2006.01); F03D 1/06 (2006.01)
CPC F03D 80/50 (2016.05) [E04G 3/24 (2013.01); F03D 1/0691 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A platform assembly for a hub of a wind turbine configured to provide a working surface inside the hub, wherein the platform assembly comprises a first platform coupled to a hub access structure, wherein the hub access structure extends in an axial direction between a nacelle of the wind turbine and the hub and provides access from the nacelle to the hub, and wherein the hub access structure passes through a main bearing reinforcement plate opening without contacting the main bearing reinforcement plate,
wherein the platform assembly comprises a second platform configured to be coupled to the first platform, wherein the second platform is configured to be positioned in such a way that a surface of the second platform extends substantially in the axial direction, and
wherein the platform assembly comprises a telescopic system for moving the second platform from a stowed position to an extended position, in which the surface of the second platform extends substantially in the axial direction and/or has a first state, in which the second platform is decoupled from the first platform or stowed on, below, or in front of the first platform to limit the surface of the platform assembly inside the hub.