Locking disc convenient to produce and machine

A locking disc convenient to produce and machine relates to the technical field of wind power generation equipment and is used for locking a shaft sleeve body and a main shaft body, one end of the main shaft body is coaxially inserted into the shaft sleeve body, and the locking disc further comprises an outer ring, an inner ring and a connecting disc. The sleeve body of the shaft sleeve body is sleeved with an inner ring, the outer edge of the inner ring is of a conical structure, and a center hole of the outer ring is a conical hole correspondingly matched with the conical outer edge of the inner ring. A connecting disc which is correspondingly connected with the end face of the corresponding end of the shaft sleeve body in a fastening mode is installed at the large head end of the inner ring, the connecting disc is of an annular structure, a plurality of installation holes are annularly formed in the outer side, corresponding to the inner ring, of the connecting disc at intervals, and locking screws which a