Improved heating furnace cantilever roller

The utility model relates to an improved heating furnace cantilever roller and belongs to the technical field of steel rolling equipment, aiming at providing an abrasive-resistant high-temperature-resistant long-use-period improved heating furnace cantilever roller in which a roller head does not drop and a roller is convenient to disassemble and assemble. The technical scheme is as follows: the improved heating furnace cantilever roller consists of the roller head and a hollow shaft; a cooling water pipe channel is arranged in the hollow shaft; the roller head body is provided with a shaft hole, the axis of the shaft hole is in coincidence with that of the hollow shaft, the hole diameter of the shaft hole is matched with the shaft end of the hollow shaft; the roller head is sleeved on the shaft end of the hollow shaft; and the roller head is in key connection with the hollow shaft. The cantilever roller assembly is created at home and abroad for the first time and has an obvious effect. The cantilever roller