Plunger pump oil seal replacing tool

The utility model discloses a plunger pump oil seal replacing tool used in oil industry which is applicable in adding and replacing a center-pole oil seal of the plunger pump of a water input well. The utility model comprises a waste material barrel, a loading or unloading sleeve, a pad, a center-pole and a screw nut, wherein the waste material barrel, an oil seal box whose oil seal needs replacing, the loading or unloading sleeve and the pad are sequentially sheathed on the center-pole, and the screw nut is installed on the top end of the enter-pole. The current problems which are that oil is leaked from the oil seal, the oil seal and the oil seal box is damaged, the efficiency of starting pump is low and the work intensity of the operator is high without special tools are settled down by the utility model. The operation is simple, the replacing is convenient, thereby the work efficiency is improved and the oil seal replacing of the plunger pump which is originally difficult is simply implemented.