Device for enabling access to a structure above ground level

Abstract

The present invention relates to a device for enabling access to a structure above ground level by lowering and / or lifting the device in relation to the structure, the device comprising a first endless frame structure defining an opening, wherein at least part of the first endless frame structure forms a track portion, the track portion being adapted to guide an, in relation to the track portion, movable object, such as a gondola, along the track portion. The device may further comprise a second endless frame structure defining an opening, the second endless frame structure being aligned with the first endless frame structure.

Description

technical field [0001] The invention relates to a device for reaching a structure such as a wind turbine, a rotor blade or a tower of such a wind turbine, for example at a considerable height above the ground, comprising a and / or elevated sections. Background technique [0002] In the field of wind turbines, work has to be carried out on components located at a considerable height above the ground (or sea surface in the case of offshore wind turbines), such as repairing rotor blades, surfaces of rotor blades, towers and performing work on rotor blades surface treatment etc. Furthermore, it has been realized that it is advantageous and even necessary to clean these components, in particular the rotor blades, in order to obtain good power efficiency. In addition, for good power output as well as optimum economics, it may be advantageous to perform other forms of maintenance - such as surface treatment, inspections, etc. [0003] In order to carry out these tasks, many lifti...

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Problems solved by technology

[0005] Even with such a device, cleaning the rotor blades of a wind turbine is a time-consuming process, as this known device may require the use of machinery, such as a crane, to secure the aforementioned suspension

Additionally, the platform itself has considerable weight and size, resulting in additional expense and the application of heavy machinery to raise and lower the platform

[0006] Corresponding types of equipment are known from DE 199 09 698 A1 and DE 43 39 638 A1, which suffer from the same disadvantages as mentioned above, including the necessity of extensive use of special implements - such as cranes, mobile cranes - or the use of more complex equipment, the more complex equipment is pre-installed on the turbine tower, for example

[0007] Furthermore, generally, the configuration of these prior art systems is not user friendly and does not provide the safest environment for the individual

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