Sealing structure between rotary components of compressor

The utility model belongs to the technical field of sealing between rotating parts of a compressor, and relates to a sealing structure between the rotating parts of the compressor, which comprises a first rotating body, a second rotating body and a sealing ring, the sealing ring is made of aluminum alloy; the end face of the first rotating body is in sealing fit with the end face of the sealing ring. The outer ring surface of the second rotating body is in sealing fit with the inner ring surface of the sealing ring; the inner ring face of the sealing ring is of a labyrinth sealing structure, and the end face of the sealing ring is of a labyrinth sealing structure. The labyrinth sealing structure of the end face of the sealing ring comprises first labyrinth teeth and second labyrinth teeth,the first labyrinth teeth and the second labyrinth teeth are arranged alternately, and the tooth height of the first labyrinth teeth is larger than that of the second labyrinth teeth. The labyrinth seal structure has the adv