Tail screw tensioning device of copper concentrate conveying belt

The utility model discloses a tail screw tensioning device of a copper concentrate conveying belt, and belongs to the technical field of conveyors. Comprising a tail roller, a fixing plate, a sliding body, a roller mounting plate and a screw, the fixing plate is fixedly connected to the tail end of a main frame, the tail roller is mounted on the roller mounting plate, the roller mounting plate is connected to the sliding body, the sliding body is movably mounted on the main frame, mounting plates are arranged at the bottoms of the two ends of the sliding body, and threaded plates are fixed to the mounting plates at the rear end of the sliding body. A threaded lead screw arranged at one end of the threaded rod is in threaded connection with a threaded hole in the threaded plate, a square rod head is arranged at the other end of the threaded rod, and the end, provided with the square rod head, of the threaded rod movably penetrates through a through hole in the fixing plate. The device is simple in structure an