Transmission bevel gear structure of vertical grinding machine

The utility model discloses a transmission bevel gear structure of a vertical grinder, and relates to the technical field of vertical grinders. Comprising a main gear, a connecting assembly is installed in the main gear, the connecting assembly comprises a connecting shaft, one end of the outer portion of the connecting shaft is fixedly connected with an integrally-formed sleeve, the sleeve is matched with the main gear, one end of the outer portion of the sleeve is fixedly connected with a stress ring, and a plurality of connecting pieces are inserted into the stress ring in a penetrating mode. The main gear is installed outside the sleeve in a fastening mode through a connecting piece. One end of the outer portion of the connecting shaft is fixedly connected with the integrally-formed sleeve, one end of the outer portion of the sleeve is fixedly connected with the stress ring, the bolt is in threaded connection with the interior of the stress ring, and the main gear is in threaded connection with the outer