Fastening system for wind turbines and corresponding installation method
A wind turbine and fastening technology, which is applied in the control of wind turbines, wind turbines, wind turbine components, etc., can solve problems such as increasing frequency and times, damaging star-shaped holes, and adjusting losses.
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[0022] figure 1 Reflecting the current state of the art, the rotor comprises two components, the hub 1 and the blades (not shown in the figure). The wind turbine model of the present invention is a three-bladed variable-pitch machine, the blades of which are coupled to the hub by bearings. The blades are moved by hydraulic actuators which move the propeller shaft 3 linearly. This propeller shaft 3 simultaneously changes the pitch angle of the three blades while moving forwards and backwards a part called a star 4 , which unites the three blades. The hydraulic cylinders are located within the wind turbine nacelle and therefore do not rotate synchronously with the rotor. A bearing 6 is placed between the propeller shaft 3 and the star 4 to avoid rotation of the cylinder and propeller shaft 3 when the rotor rotates. The bearings are mounted in a housing coupled to the star 4 such that the outer ring 7 of the bearing 6 is coupled to the housing and the inner ring of the bearing...
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