Quick-release chain wheel roller

The utility model discloses a quick-release chain wheel roller, particularly relates to the technical field of mechanical transmission, and solves the problems that when an existing chain wheel roller is used, an end shaft and a roller body are integrated, so that the disassembly and assembly are inconvenient, the end shaft is inconvenient to replace, chain wheels with different hole diameters are inconvenient to mount, the applicability is not good enough, and a certain improvement space exists. End shafts are symmetrically arranged at the ends of the roller body, the end shafts are sleeved with chain wheels, disassembly and assembly assemblies are arranged at the joints of the end shafts and the roller body, and functional assemblies are arranged on the surfaces of the end shafts. The end shafts and the roller body can be conveniently disassembled and assembled through the designed disassembling and assembling assemblies, the end shafts of different sizes can be replaced, chain wheels of different hole diam