Composite sealing ring for main shaft of wind driven generator

A combined type sealing ring for a main shaft of a wind driven generator comprises an annular supporting ring, a sealing ring body is fixed in the supporting ring, the sealing ring body is annular and fixed to the inner wall of the supporting ring, the cross section of the sealing ring body is in an L shape, a diaphragm spring is arranged in an annular cavity between the sealing ring body and the supporting ring, and a sealing ring is arranged on the inner wall of the sealing ring body. An oil storage groove is formed in the sealing ring body in the circumferential direction, an annular oil scraping ring is fixed to the portion, on one side of the oil storage groove, of the sealing ring body, a plurality of sealing lips which are evenly arranged at intervals are formed in the portion, on the other side of the oil storage groove, of the sealing ring body, and all the sealing lips are annular. The device is simple in structure and convenient to use. 一种风力发电机主轴用复合式密封圈，包括呈环状的支撑环，支撑环内固定有密封圈本体，密封圈本体呈环状，且固定在支撑环的内壁上，密