Two-shaft acoustic motor

The invention relates to the technical field of acoustic motor, and discloses a two-shaft acoustic motor. The two-shaft acoustic motor includes a motor, a motor shaft and a toothbrush matching shaft.The toothbrush matching shaft includes a shaft head, a shaft journal and a shaft body which are successively connected end to end. A first end face of the toothbrush matching shaft is located at the shaft head, and the second end face of the toothbrush matching shaft is located at the shaft body; the shaft head has a first cross section, a second cross section, a third cross section and a fourth cross section in the axial direction; the side wall of the shaft journal is provided with a first groove, a second groove and a third groove; and the shaft body is provided with blind holes. The structure of the whole motor is simple. For different customers, through setting and cooperative use of the toothbrush matching shaft, the acoustic motor and the motor shaft, different shafts are used for the junction part between the motor shaft and the toothbrush head, thus bringing great convenience for the processing of the central shaft of an electric toothbrush and the general production of the motor, reducing the production cost of the electric toothbrush and solving the general production problem of motors in the prior art.