Abstract: The utility model relates to a belt breakage protecting device for a belt conveyor. The belt breakage protecting device comprises side plates, an upper capture mechanism, a lower capture mechanism, limiting mechanisms and position sensors. The belt breakage protecting device is characterized in that the side plates are arranged on the two sides of the belt frame, the lower capture mechanism comprises a lower suspension arm and a lower bearing beam arranged between the side plates, the upper capture mechanism comprises an upper suspension arm and an upper bearing beam, a balance weight arm is assembled at the rear end of the upper suspension arm, a balance weight is arranged on the balance weight arm, and a limiting mechanism and a position sensor are arranged on one side of each of the side plates. The belt breakage protecting device has the advantages that the belt breakage protecting device judges a broken belt through belt tension and meanwhile reliably captures an the upper belt and a lower belt, a capture structure is simple, the number of moving parts is small, and the possibility of malfunctions is greatly reduced. The capture mechanism is of a self-locking structure, during capturing, full fracture face capture of the belts can be achieved, the whole fractured face of the belt is evenly stressed, damage to the belt is small, and the disaster of secondary accidents after fracture of the belt can be effectively reduced.
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