Mining ventilator brake simulation test method and device

The invention belongs to the technical field of coal mine safety, and particularly relates to a mining ventilator brake simulation test method and a device. Firstly, a prepared brake pad test piece isplaced on a clamping device in an explosion groove; then the explosion groove is closed, and a stirring fan in the explosion groove is opened to stir the explosive gas filled in the explosion groovefor test; and the concentration of the to-be-tested gas reaches a specified value, a variable-frequency motor is started, a friction plate is driven to rotate by an elastic coupling, a pressurizing device is started and adjusted to enable the brake pad test piece to move in the vertical direction until the rotating speed reaches a specified value, the brake pad test piece is in contact with the annular surface of the friction plate and bear a certain positive pressure, friction is generated between the brake pad test piece and the friction plate in a preset time, and whether the temperature rise between the brake pad a