The invention discloses a conveyor used for increasing the carrying capacity and belongs to the technical field of conveying equipment. The conveyor aims at solving the problems that in the prior art,a rotating conveying belt conveyor is prone to abrasion, and a rotating conveying belt structure is likely to deflect. The conveyor comprises a rack. A first rotating roller and a second rotating roller are connected to the two ends of the rack respectively in a rotating mode, a rotating conveying belt is connected to the first rotating roller and the second rotating roller in a transmission mode, a bearing frame is arranged between the first rotating roller and the second rotating roller, connecting blocks are fixedly connected to the two ends of the bearing frame, first stretching rods arefixedly arranged on the upper side of the bearing frame, first positioning blocks are connected to the upper ends of the first stretching rods, the first stretching rods are sleeved with first dampingsprings, the upper ends of the first damping springs are in contact with the first positioning blocks, and the lower ends of the first damping springs are in contact with the upper end of the bearingframe. Through the structure of the first damping springs, second damping springs, bearing wheels, limiting tensioning wheels, bearing sliding wheels and a sliding guide rail, the bearing capacity ofthe rotating conveying belt is improved, and excessive wear borne by the rotating conveying belt is avoided.