Plunger pump
close Plunger pump is generally divided into single plunger pump, horizontal plunger pump, axial plunger pump and radial plunger pump. The single plunger pump is mainly composed of eccentric wheel, plunger, spring, cylinder body and two one-way valves. A sealed volume is formed between the plunger and the cylinder block hole. When the eccentric wheel rotates, the plunger moves up and down once, moves downward to absorb oil, and moves upward to discharge oil. The volume of oil discharged per revolution of the pump is called the displacement, which is only related to the structural parameters of the pump. Horizontal plunger pump The horizontal plunger pump is a hydraulic pump that is installed by several plungers (usually 3 or 6) in parallel, and uses a crankshaft to directly push the plunger through the connecting rod slider or the eccentric shaft to make reciprocating motion, so as to achieve liquid suction and discharge. They also use valve type flow distribution devices, and most of them are fixed displacement pumps. The emulsion pump in the coal mine hydraulic support system is generally a horizontal plunger pump. The emulsion pump is used in the coal mining face to provide emulsion for the hydraulic support. Its working principle is to drive the piston to reciprocate by the rotation of the crankshaft to achieve liquid suction and discharge.