System for removing the cover roof from a wind turbine

摘要

System for removing the cover roof from a wind turbine which includes the following steps: the assembly of an elevator and a boom on the rail beams of the frame forming the nacelle, the lifting of the cover roof, its lengthways movement and 90° turn. In this position the roof is anchored to a boom mounted on the rail beams, which turning on its axis separate the roof from the nacelle and next proceed to lowering it to the ground. The are two tools used to remove the cover roof: a tool capable of hoisting, moving and turning the nacelle cover, and an other tool for its lowering. Both tools are anchored to the rail beams of the nacelle.