Automatic opening and closing device for heat dissipation air opening of suspension type main motor

The utility model belongs to the technical field of pump station main motors, in particular to an automatic opening and closing device for a heat dissipation air opening of a suspension type main motor, which comprises a main body and an opening and closing assembly arranged on the surface of one side of the main body, the opening and closing assembly comprises a guide rail connected to the upper portion of the body in a sliding mode, a motor installed at one end of the guide rail and a pulley connected into the guide rail in a rotating mode, and through the guide rail, the pulley and the motor, during use, a screw can be driven by the motor to push the pulley to move in the guide rail, and the pulley drives the body to move; the controller controls opening and closing of the main body, after the main body is closed, the tuyere can be sealed, and gas leakage is reduced, during installation, the fixing plate is firstly installed on a wall body, then the heights of the supports are adjusted through the lead scr