The utility model discloses a split type rim tire mounting device, which belongs to the technical field of vehicle assembling and manufacturing, and comprises a tire expanding mold, a tire pressing component and a linear driver, the tire expanding mold is provided with a guide ring surface, and the
diameter of an upper circle formed by the guide ring surface is smaller than that of a lower circle; the tire pressing component comprises an upper seat part, a connecting part and a jacking part, the upper seat part is located above the tire expanding mold, the jacking part is arranged on the periphery of the guide ring surface in a surrounding mode, and the surrounding
diameter is larger than the lower circle
diameter of the guide ring surface; the linear driver is mounted between the tire expanding mold and the tire pressing component and outputs driving force for the jacking part to axially move towards the lower end of the guide ring surface, and the linear driver is detachably connected with at least one of the tire expanding mold and the tire pressing component. The device has the advantages of low cost, simplicity in use, low
failure rate, low operation and maintenance cost, small size, rapidness and high efficiency in operation and the like.