Deviation correcting device for carrier roller of conveying belt of conveyor

The utility model discloses a carrier roller deviation correcting device for a conveyor belt of a conveyor. The carrier roller deviation correcting device comprises a carrier roller deviation correcting mechanism. The carrier roller deviation correcting mechanism comprises a bottom bracket arranged at the bottom of the carrier roller frame, and deviation correcting arm assemblies arranged on the two sides at intervals are hinged between the bottom bracket and the carrier roller frame. The deviation rectifying arm assembly comprises a plurality of deviation rectifying arms; the deviation rectifying arm assembly further comprises a blocking roller assembled on the deviation rectifying arm at the position of the free end, when the deviated belt touches the blocking roller, under pushing of deviation force of the belt, the deviation rectifying arm pushes the carrier roller frame and corrects the relative position between the deviation rectifying arm and the belt, and it is guaranteed that the belt is completely s