Automatic detection device for fracture of coal conveying belt

The utility model discloses a coal conveying belt fracture automatic detection device which comprises a conveying mechanism which comprises a case, a mounting plate arranged in an inner cavity of the case, fixing plates arranged on the two sides of the top of the mounting plate, idler wheels arranged on the opposite sides of the two fixing plates and a belt body arranged on the tops of the idler wheels. And the supporting mechanism comprises supporting plates which are arranged at four corners of the bottom of the mounting plate. The device has the beneficial effects that the mounting plate and the fixing plate are arranged for supporting the rollers, so that the belt body can be stably driven, the mounting seat is conveniently mounted and fixed by arranging the supporting plate and the connecting plate, and the audible and visual alarm and the first infrared sensor are kept in a normal working state during operation; and then the first infrared sensor and the second infrared sensor scan and detect the belt b