초록 ▼

Method of mounting the rotor of a wind turbine (11) comprising the following steps: lifting and mounting the rotor hub (15) on the nacelle (21); lifting and mounting the rotor blades (25, 27, 29) on the rotor hub (15) using a lifting device (17) cooperating with a winch (19) on ground, the mounting

Method of mounting the rotor of a wind turbine (11) comprising the following steps: lifting and mounting the rotor hub (15) on the nacelle (21); lifting and mounting the rotor blades (25, 27, 29) on the rotor hub (15) using a lifting device (17) cooperating with a winch (19) on ground, the mounting of each blade being made after rotating the rotor hub (15) for having the connecting part (25′, 27′, 29′) with each blade (25, 27, 29) in front of it when it is lifted, the lifting device (17) being installed in a fixed position in the rotor hub (15) and comprising, in a preferred embodiment, a bracket (31) mounted on the rotor hub front (16) and a hook block (33) mounted on said bracket (31) with a cable (35) connected to said winch (19). The invention also refers to a method of dismounting a rotor blade.

대표청구항 ▼

1. A method of mounting a rotor of a wind turbine (11) supported in a tower (13), comprising the following steps: a) lifting a rotor hub (15) and mounting the rotor hub (15) on a nacelle (21) of the wind turbine (11);b) lifting some rotor blades (25, 27, 29) and mounting the rotor blades (25, 27, 29

1. A method of mounting a rotor of a wind turbine (11) supported in a tower (13), comprising the following steps: a) lifting a rotor hub (15) and mounting the rotor hub (15) on a nacelle (21) of the wind turbine (11);b) lifting some rotor blades (25, 27, 29) and mounting the rotor blades (25, 27, 29) on the rotor hub (15) using a lifting device (17) cooperating with a winch (19) on ground keeping a distance with the tower (13), the mounting of each blade being made after rotating the rotor hub (15) for having a connecting part (25′, 27′, 29′) of the rotor hub (15) in front of each blade (25, 27, 29) when each blade is lifted, the lifting device (17) being installed in a fixed position in the rotor hub (15). 2. The method of mounting the rotor of a wind turbine (11) according to claim 1, wherein said lifting device (17) comprises: a bracket (31) mounted on the rotor hub front (16); anda hook block (33) mounted on said bracket (31) with a cable (35) connected to said winch (19). 3. The method of mounting the rotor of a wind turbine (11) according to claim 2, wherein in step b) the lifting of one blade (25) is made taking the blade (25) with a hook (37) of the hook block (33) through a gripping device (45) and some fittings joined to the blade, keeping a tilt angle of the blade (25) with respect to a vertical line comprised between 5° and 15°. 4. The method of mounting the rotor of a wind turbine (11) according to claim 3, wherein the hook block (33) is mounted on said bracket (31) by a mounting arrangement (39), wherein said mounting arrangement (39) comprises conventional means which allow that the hook block (33) remains continuously in vertical position. 5. The method of mounting the rotor of a wind turbine (11) according to claim 3, wherein the hook block (33) is affixed on said bracket (31) in at least two positions by a mounting arrangement (39) of said hook block (33) on said bracket (31). 6. The method of mounting the rotor of a wind turbine according to claim 3, wherein a gripping device (45) comprises a hook connector (47) with fixation points for the two ends of a rope (49) passing by a hole in a fitting (51) attached, to the blade (25) outside its root and two holes (57, 59) in fittings attached to a blade root (55). 7. The method of mounting the rotor of a wind turbine (11) according to claim 1, wherein in step a) the rotor hub (15) is lifted using a crane (41) installed on the nacelle (21). 8. The method of mounting the rotor of a wind turbine (11) according to claim 1, wherein the rotor hub (15) is connected to said lifting device (17) on the ground and is lifted in cooperation with the winch (19) to which is connected through the cable (35) keeping a distance with the tower (13).