Motor-driven reciprocating pump

The invention belongs to the technical field of reciprocating pumps, and particularly relates to a motorized reciprocating pump which comprises a bottom plate, an engine is fixedly installed on the left side of the upper portion of the bottom plate, a cylinder body is fixedly installed on the right side of the upper portion of the bottom plate, a reciprocating plunger mechanism is arranged in the cylinder body, and the output end of the reciprocating plunger mechanism is connected with a rotary disc. A rotating rod is fixed to the output end of the engine, a connecting disc is fixedly installed at the front end of the rotating rod, the connecting disc is connected with a rotating disc crawler belt, sector teeth are fixedly installed on the outer side of the rotating rod, a driving cavity is formed below the sector teeth, and a filtering cavity is fixedly installed above the bottom plate; a driving mechanism is arranged in the driving cavity, a filter screen is fixedly mounted on the inner wall of the filter c