Variable-diameter coupling easy to disassemble

The utility model provides a diameter-variable easily-detachable coupler, which belongs to the technical field of couplings and comprises an outer shaft sleeve and an inner bushing, the outer shaft sleeve is sleeved outside the inner bushing, a second through hole is arranged in the middle of the inner bushing, and the inner diameter of the second through hole is not unique and is set according to the outer diameter of a shaft to be connected. The inner bushings with different inner diameters are arranged in the outer shaft sleeve, so that the coupling can be connected with equipment with different shaft diameters, the coupling does not need to be manufactured again before a machine is tested, the preparation time of the machine is shortened, and the maintenance efficiency is greatly improved. 本实用新型提供了一种可变径易拆卸联轴器，属于联轴器技术领域，包括外轴套和内衬套，所述外轴套套设在内衬套外部，所述内衬套的中部设置有第二通孔，所述第二通孔的内径不唯一，根据待连接轴的外径设置。本实用新型通过在外轴套内部设置内径不同的内衬套，能够实现与不同轴径的设备相连，在试机之前不需要重新制作联轴器，减少了试机的准备时间，大大提高了检修效率。