Wind driven generator hub sand box

Abstract

The utility model discloses a wind driven generator hub sand box which comprises an upper box body, a box body base and a middle box body which is arranged between the upper box body and the box body base and is used for fixedly connecting the upper box body and the box body base, the outer edge of the bottom of the upper box body, the outer edge of the top of the box body base and the outer edges of the top and the bottom of the middle box body are provided with outwards-protruding butt joint edges respectively, the butt joint faces of the butt joint edges are provided with tooth grooves and teeth which are meshed with each other respectively, and the upper box body, the box body base and the middle box body are connected in an inserted mode and in a butt joint mode through triangular columns and triangular cavities. The upper box body, the box body base and the middle box body are stably supported through the triangular frames and the triangular columns according to the principle that the three sides of a triangle are fixed and the gravity center is fixed, and then the stability when the sand box is matched with a hub to bear blades and operate in a matched mode is improved.

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