Hydraulically controlled auxiliary belt feeding device

The utility model discloses a hydraulically-controlled auxiliary belt conveying device which comprises two H-shaped fixing frames, the two fixing frames are arranged in parallel, clamping oil cylinders are fixedly connected to the middles of cross beams of the two fixing frames, the clamping oil cylinders are connected with transversely-arranged clamping rollers, bearing seats are fixedly connected to the lower portions of the cross beams of the two fixing frames, and the bearing seats are fixedly connected to the lower portions of the cross beams of the two fixing frames. The bearing seat is connected with a transversely arranged fixed roller, one end of the fixed roller is connected with a hydraulic motor, the other end of the fixed roller is connected with a bidirectional adjustable backstop, and the hydraulic motor and the bidirectional adjustable backstop are both fixedly connected to the fixed frame; according to the utility model, the shaft head can be quickly disassembled and assembled, so that the ti