Patent ID: 10625993

Abstract:
Crane of a wind turbine (200), comprising a fixed part (1), a pivoting part (2) which is attached with rotational freedom to the fixed part (1), a support (3) which is attached to the pivoting part (2), a winch (4), a wiring system between the winch (4) and the support (3), and a guide for guiding the wiring system along its path. The wiring system comprises a single wire (6), and the guide comprises a pulley (52) in the fixed part (1) for guiding it through said fixed part (1), and a pulley (53) in the pivoting part (2) for guiding it through said pivoting part (2). The wire (6) comprises a section (60) between the two pulleys (52, 53), which goes through the center of rotation of the pivoting part (2) with respect to the fixed part (1) connecting both parts (1, 2).