Special waist-collapse-preventing carrier roller convenient to maintain and with self-lubricating function

The invention discloses a special waist-collapse-preventing carrier roller convenient to maintain and with a self-lubricating function, the special waist-collapse-preventing carrier roller comprises a supporting frame and a plurality of carrier roller assemblies, the supporting frame is arranged on the inner wall of a conveyor shell, the carrier roller assemblies are arranged on the supporting frame, and the carrier roller assemblies are used for supporting a conveying belt. A self-lubricating assembly is arranged in the carrier roller assembly. A maintainer can disassemble and assemble the supporting frames from the outer side of equipment, the equipment does not need to be stopped to enter the equipment for operation, loss caused by factory production halt is reduced, the risk that the maintainer enters the equipment to cause occupational injury is reduced, when the carrier roller assembly is replaced, only the corresponding supporting frames need to be disassembled, and the maintenance cost is reduced. And