PITCH BEARING AND YAW BEARING ASSEMBLY FOR LARGE WIND POWER GENERATOR

WIPO Patent Application WO/2024/096163

A1

In a pitch bearing and yaw bearing assembly for a large wind power generator according to one embodiment of the present invention, a pitch bearing for a blade of a large wind power generator comprises: a first inner ring; a first outer ring; a plurality of balls in each row that are movably interposed between raceway grooves in two rows of the inner ring and the outer ring, respectively; and ball spacers for the pitch bearing interposed between the balls in each row, wherein the pitch bearing is a four-point contact ball bearing in which the cross-sectional shape of each raceway groove is formed such that the balls are in four-point contact with the inner surfaces of the plurality of raceway grooves of the inner ring and the outer ring, a yaw bearing for a nacelle of a large wind power generator comprises: a second inner ring; a second outer ring rotatable in an opposite direction with respect to the second inner ring; two rows of axial cylindrical rolling elements which are subject to axial force between the second inner ring and the second outer ring; and one row of radial cylindrical rolling elements which are subject to radial force, the second inner ring has a nose portion protruding in the radial direction, the second inner ring is a split C-type bearing ring, and the two rows of axial cylindrical rolling elements and the radial cylindrical rolling elements are arranged perpendicular to each other.

KIM KWANG MIN (KR)
YOON SANG MOON (KR)
KIM SUNG YONG (KR)
YU JI GYU (KR)

PCT/KR2022/017113

May 10, 2024

November 03, 2022

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WOORIM POWER TRAIN SOLUTION CO LTD (KR)

F03D80/70; F16C19/14; F16C19/54; F16C33/37; F16C33/46

YOU ME PATENT AND LAW FIRM (Gangnam-gu, Seoul, KR)

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