high and low voltage conversion calculations

Modern piston concrete pump, in order to meet the needs, generally has a high and low voltage conversion function. Concrete mixing plant, usually hydraulic drive change, that is to change the hydraulic oil supply means to achieve high or low pressure pumping. Piston end of the cylinder chamber communicates end chamber of the piston into the oil chamber, into the oil chamber as the larger, the oil supply is constant, will lead to slow piston speed, stroke frequency is reduced, thus reducing the displacement of the concrete.Screw Conveyor, since the cross-sectional area into the oil chamber and the concrete pump cylinder cross-sectional area ratio increases, so concrete pumping pressure increased, ie Figure 3-14 piping connections, enabling small displacement high pressure pump.