Disassembling and assembling tool for screw thread ring of cylinder sleeve of drilling pump

The utility model relates to a dismounting tool for a screw thread ring of a cylinder sleeve of a drilling pump, which relates to the technical field of drilling pump tools for drilling machines and is used for dismounting the screw thread ring of the cylinder sleeve of the drilling pump. The dismounting tool for the screw thread ring of the cylinder sleeve of the drilling pump comprises a rotating clamping jaw piece and a jack, the disc rotating clamping jaw piece comprises a disc body and a clamping jaw which are connected into a whole, and the clamping jaw is used for being connected with a clamping groove in a screw thread ring in a clamped mode. A plunger of the jack is fixedly installed and extends in the radial direction of the screw thread ring, and a cylinder body of the jack is connected with the disc body in a clamped mode. Compared with the prior art, the utility model has the advantages that the jack plunger stretches out and draws back, the plunger takes the partition plate as a limiting support