Sprocket type balancing device of articulated arm

The utility model discloses the sprocket type balancing device of an articulated arm, which comprises a fixed flange, a flange connection cylinder, a square support cylinder and a square shaft bracket cylinder. One side surface of the square support cylinder is horizontally provided with a fixed shaft. The square shaft bracket cylinder is provided with a through rotating shaft. The fixed shaft is equipped with a rotating sprocket I and the long arm of an articulated arm fixedly connected with the sprocket I on the same side of the support cylinder and the shaft bracket cylinder. The rotating shaft is equipped with a fixed sprocket II. A chain is hitched between the two sprockets. A heavy hammer hanging plate is fixedly connected with the rotating shaft on the other side of the support cylinder and the shaft bracket cylinder. The lower end of the heavy hammer hanging plate is connected with a heavy hammer. The sprocket type balancing device of an articulated arm has the advantages of simple structure, low cost