Split coupling sleeve

The utility model discloses a split coupling sleeve, and relates to the technical field of coupling sleeves. The device comprises a shaft sleeve, a tooth-shaped sleeve, a positioning sleeve and an output shaft connecting screw, a positioning edge is arranged at the edge of one end of the shaft sleeve, a positioning opening, a screw opening and an output shaft placing opening are sequentially formed in the axis of the shaft sleeve from one end of the positioning edge to the other end of the positioning edge, a center hole in the positioning sleeve is a T-shaped opening, and a top block is fixed to one end of the positioning sleeve through a screw. The positioning sleeve and the ejector block are arranged in the positioning opening in a clearance mode. The ejector block faces the positioning edge and is flush with the end face of the shaft sleeve. The coupling sleeve is divided into the tooth-shaped sleeve and the shaft sleeve which are split, the tooth-shaped sleeve part can be independently installed, dismant