Shot blaster with directly coupled motor

The utility model provides a shot blaster with a directly coupled motor, which comprises the motor (1), a shot distribution wheel (2), an impeller (3), a shot inlet pipe (4), vanes (5), a positioning sleeve (6), a casing (7) and the like. An output shaft of the motor (1) is directly coupled with the shot distribution wheel (2) by the aid of a jointing disc (8), a motor shaft seat (9) is arranged on the periphery of the output shaft of the motor (1), the casing (7) is fixedly connected to the motor shaft seat (9), the impeller (3) is provided with vane inserting holes (3.1), the vane inserting holes (3.1) are provided with fastening grooves (3.1.1), and the vanes (5) are provided with fastening bosses (5.1) matched with the vane inserting holes (3.1), and can be inserted from the inside of the impeller (3) and then fastened into the vane inserting holes (3.1). The shot blaster has the advantages of stability in operation and convenience in fixing of the vanes.