| With the developing of fluid power transmission and control technology, an increasing demanding for capability of Emulsion pump is even higher. To research, design and empolder more high-powered Emulsion Pump, only through traditional design ways need more cycle and cost to trial-produce and test prototype, and can not change parameter of Emulsion pump freely, even some can not be realized. In recent years, The virtual prototyping technology appears, which can make accurate simulation research on the movement and the dynamics of the transmission system and hydraulic systems of pumps.This paper has taken RBW315/31.5 emulsion pump as the study object. Based on the Virtual Prototyping Technology established by three dimensional design software CATIA, it has mainly applied multi-body system simulation software ADAMS and hydraulic system simulation software AMEsim for establishing emulsion pump drive system and hydraulic system of virtual simulation model, and studied the issue of coupling interface produced by two types of software and models when conducting joint simulation.Through the establishment of virtual simulation environment, it has researched the simulation of this type of emulsion pump the hydraulic system, as well as the plunger-cylinder pressure, output flow and the movement features of suction and discharge liquid valve in the hydraulic system in different circumstances. According to the research, crank speed directly affects the hoist characteristics of suction and discharge liquid valve, and then impact on pump volumetric efficiency; Under the premise of improving the speed of crankshaft and reducing the size of pump, choose logically the emulsion pump speed of the crankshaft, with the purpose of the minimum angle lag of suction and discharge liquid valve and the maximum of pump volumetric efficiency. Simulation research methods and results have certain practical significance in researching performance of emulsion pump, and improving the quality of new products.
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