Shovel bearing for rotating support of a rotor blade in the impeller core of a wind plant and wind plant equipped with it

摘要

Construction group of blade bearing (1) for rotating support of a rotor blade in the wind wheel impeller core of a wind plant with a device to adjust the angle of attack of the rotor blade, which comprises two elements of union (4,5) rotationally symmetric, preferably with an annular shape, in each case with at least one flat connecting surface for the torque-proof rotating connection to the wind wheel impeller core, on the one hand, and to the blade rotor, on the other, where both joining elements (4,5) are aligned in such a way that their symmetry axes run coaxially with each other and their preferred joining surfaces are opposite each other, where also, between the two elements of connection (4,5) is a groove (X), in which at least one bearing assembly (6.29) is arranged as the main bearing to house both joining elements (4.5) against each other and movable rotationally around an ej e of main rotation, which corresponds to the common axis of symmetry of both joining elements (4,5), and where at least one lateral surface of a joining element (4) is provided with a complete circumferential toothing (12) , with which at least one gear wheel (8) engages, wherein the non-toothed joint element (5) has a lateral surface section (23) concentric with the toothed (12) of the toothed joint element (4) and directed to the teeth (12), with one or several hollow cavities open to the teeth (12), where the gear wheel (8) toothed, at least one, is housed, characterized in that in the non-toothed joint element (5) in addition to each opening in the main face for each gear wheel (8), whereby a rotating connection of the corresponding gear wheel (8) is accessible, with this opening almost in an axial alignment at least an area closed to a ring where at least one support (1 4.15) for the corresponding gear wheel (8) arranged in axial direction between the joining areas of both connecting elements (4,5) is supported as its wheel bearing, so that the gear wheel (8) correspondingly rotates around a secondary rotation axis (3), displaced eccentrically with respect to the main rotation axis (2) but almost parallel to it, and engages with the teeth (12) of the toothed connecting element (4).