Reciprocating pump transmission structure

The utility model relates to the technical field of reciprocating pump transmission, and discloses a reciprocating pump transmission structure. A motor is arranged at the top of a reciprocating pump body; the belt pulley is arranged on a crankshaft of the reciprocating pump body; the multiple lead screws rotate synchronously, the position of the diffusion plate can be moved through the moving part, the diffusion plate moves away from or close to the circle center of the first plate, the diameter of the portion, between the first plate and the second plate, of the belt can be increased or decreased, and then the purpose of staying the belt can be achieved. According to the reciprocating pump, the mounting space of a transmission mechanism can be reduced, the reciprocating pump is suitable for being located in a narrow working space, the position of the diffusion plate is adjusted through rotation of the lead screw, the moving distance of the diffusion plate can be accurately controlled, the belt tensioning acc