Test device for predicting service life of high-pressure rotary sealing pipe joint

A high-pressure rotary sealing pipe joint service life prediction test device comprises a test piece driving oil cylinder, a test frame assembly and a workbench. The test piece driving oil cylinder is arranged on the workbench and located on the side edge of the test frame assembly. The testing frame assembly comprises a fixing frame, a guide rail, a sliding block and a rocker arm, the fixing frame is installed on the workbench, a set of testing pieces are assembled on a top cross beam of the fixing frame, the guide rail is installed on a base of the fixing frame, the sliding block is assembled with the guide rail, one end of the sliding block is connected with a telescopic arm of a testing piece driving oil cylinder, and the other end of the sliding block is connected with the rocker arm. One end of the rocker arm is hinged to the slide block, and the other end is fixedly connected with one interface of the test piece. According to the utility model, the verification and correction requirements of life predi