The utility model belongs to the technical field of
plunger pumps, and particularly relates to a
plunger pump
assembly which comprises a pump body, the upper surface of the pump body is fixedly communicated with an oil outlet
pipe, the bottom of the pump body is fixedly communicated with an oil inlet
pipe, and the inner wall of the oil outlet
pipe and the inner wall of the oil inlet pipe are both fixedly connected with one-way sealing pieces. The bottom of the pump body is fixedly connected with a driving mechanism, and the surface of the driving mechanism is fixedly connected with a first disc. According to the
plunger pump
assembly, through cooperation of a first disc, a first rectangular hole, a cylinder, a first limiting ring, a second pump cover, a threaded
barrel, a threaded column, a
rotating disc, a second bearing, a second disc, a second rectangular hole, a guide column and an inclined hole, a user can rotate the
rotating disc to change the distance between the cylinder and a rotating shaft, and the distance between the cylinder and the rotating shaft is changed to change the distance between the cylinder and the rotating shaft. According to the
plunger pump assembly, the
stroke of the plunger can be changed, and therefore the
plunger pump assembly can meet different use requirements.