Intelligent manual and electric dual-purpose brake device for mining main ventilator

The utility model relates to an intelligent manual and electric dual-purpose brake device for a mining main ventilator, and belongs to the technical field of ventilators. Comprising a brake shoe, a brake drum ring and a rotating speed sensor which are installed at the motor shaft end of a main ventilator, the brake shoe is installed inside the brake drum ring, the rotating speed sensor faces the brake drum ring, an electric actuator is connected with a transmission mechanism, the transmission mechanism is hinged to one end of a pull rod, and the other end of the pull rod is hinged to one end of a connecting rod. The rotating speed sensor is connected with the remote control device, and the remote control device is connected with the electric actuator. By arranging the rotating speed sensor, the sensitive rotating speed sensor quickly and accurately feeds back information to the remote control device by monitoring the rotating speed of the motor shaft, so that the remote control device can timely operate the e