Abstract: A simple and safe means is provided to gain entry into the rotor hub of a wind turbine for maintenance operations within the hub. A ladder-like structure is mounted onto the rotor hub using the same bolts attaching a fixed outer race of the pitch bearing for the rotor blades. The ladder-like structure has integral with it a protective cage to the front, forming a basket. Structural elements for grasping are provided to a worker over the full path traversed from the nacelle to the entry hatch of the hub. An expanded area between rungs may be provided to facilitate entry by a service worker into the safety cage area. Lifting ears made also be formed with tubular sections integrated into the ladder-like structure.

Abstract: A simple and safe means is provided to gain entry into the rotor hub of a wind turbine for maintenance operations within the hub. A ladder-like structure is mounted onto the rotor hub using the same bolts attaching a fixed outer race of the pitch bearing for the rotor blades. The ladder-like structure has integral with it a protective cage to the front, forming a basket. Structural elements for grasping are provided to a worker over the full path traversed from the nacelle to the entry hatch of the hub. An expanded area between rungs may be provided to facilitate entry by a service worker into the safety cage area. Lifting ears made also be formed with tubular sections integrated into the ladder-like structure.