Variable pitch mechanical device for wind turbine, has sliding hub carrying blade shanks including flange and toothed sector that is actuated by rack integrated to guide pin held by fixed hub, and centrifugal regulators connecting two hubs

摘要

The device has a sliding hub (3) carrying cylindrical blade shanks (4), each provided with a flange (5) and a toothed sector (6) that is actuated by a rack (7) integrated to a guide pin (8). The pin (8) is held by a fixed hub (2) and situated parallel to a guide pin (9), where the shanks and pins are maintained in the sliding hub by a screwed cover. Centrifugal regulators (11) provided with springs (12) connect the two hubs.