Bolt fastening grinding wheel mounting structure

The utility model relates to the technical field of grinding wheel fastening, and discloses a bolt fastening grinding wheel installation structure which comprises a rotating shaft, an installation shaft fixed at the top of one end of the rotating shaft, a separation blade fixed on one side connected with the installation shaft, and a bolt grinding wheel sleeved on the outer side of the installation shaft, and further comprises a fastening bolt, the penetrating separation blade is connected to the inner side of the bolt grinding wheel in a threaded mode. An expansion taper hole is formed in the end, penetrating into the bolt grinding wheel, of the fastening bolt. The expansion bolt penetrates through the center of the fastening bolt and is in threaded connection with the fastening bolt, an expansion ball is fixed to the end, located in the fastening bolt, of the expansion bolt and slides on the inner side of the expansion taper hole in an attached mode, and the other end of the expansion bolt extends to the ou