The invention relates to the technical field of
plunger pumps, in particular to a
plunger pump with
grease stored inside. According to an existing general
grease adding method, generally, after the
plunger pump works for schedule time, a
grease adding tool is directly used for adding grease, or a grease cup is directly installed on the
plunger pump, the grease is added in the grease cup, once the grease is added, a
machine needs to be
shut down, the job schedule is influenced, or the structure of the
plunger pump is complicated, and the manufacturing cost of the
plunger pump is further increased. The plunger pump with grease stored inside comprises a cylinder body and a plunger arranged in the cylinder body. A grease storing and sealing mechanism is installed on the plunger and is in sealing fitting with the plunger and the cylinder body. The plunger pump with grease stored inside utilizes an oil sealing ring and a
gasket to store the grease in the plunger pump to achieve the purpose of avoiding follow-up grease addition and lubricating the plunger, the plunger pump can work continuously, and the situation that due to lubricating failure, the sealing part installed on the plunger is damaged is avoided.