| With the transition from the ordinary fully-mechanized mechanized production to the high-yield and high-efficient intensive production in china, it demands a higher productivity of fully-mechanized coal mining face. It's crucial to productivity of fully-mechanized coal mining equipments for increasing the productivity of fully-mechanized coal mining face. However, the problem that both the support speed of hydraulic support and the hauling speed of shearer don't match has seriously restricted the productivity of electricity hauling coal machine. Its fluid supply flow and pressure of the emulsion pump station, as the power source of hydraulic support, have great influence on the inrease of support speed. So it's necessary to study of high pressure and high volume of flow emulsion pump for meeting rapid transit of hydraulic support on coal minning face.The high pressure and high volume of flow emulsion pumps are studied if by the tradition design methods, it takes much more time and can not change conveniently parameters and condition; even the expectating results are not achieved in current condition. The elastic deformation of some parts of emulsion pump are nonlinear inertia coupling, in addition many nonlinear factors of hydraulic systems. So the results of analysis of emulsion pump by common theory are far away with the real status. The development of virtual prototype provides the possibility for precise simulation of the nonlinear complex systemIn this paper, The size of the main parts of the emulsion pump was caculated by traditional design methods and the three-dimension model was completed in 3D CAD software Pro/E, then the various quality parameters of its main parts was calculated. But according to trational design methods there is partially imbalance with emulsion pump crankshaft, which caused increasing pump vibration and noise, accelerateing wear of the bearings and other parts, decreasing of working life of pump and so on. A new design approach of crank structure has been put forward to solve the above defects. The crankshaft size parameters are optimized by the behavioral modeling technology of Pro/E software, crankshaft centre of mass was located in the center rotation axis, make the mass of crankshaft the smallest under the satisfacting condition of structure and strength.Using the integration feature of virtual prototype technology, In this paper virtual prototype of RB315/31.5 emulsion pump has been established by dynamic analysis and simulation in ADAMS, which is combined with three-dimension model completed in Pro/E, the mechanics and stress characterstics of its main parts were analized.Because some parts of the emulsion pump have remarkable flexibility, the impact of its elastic deformation on the entire movement of the system has not been neglected. In order to study the dynamic characteristics of RB315/31.5 emulsion pump and more reliable basis for the design, the finite element analysis software ANSYS is used to carry out the flexible treatment on some major parts of the emulsion pump such as crankshaft, connecting rod, piston(plunger) and so on. The common file is formed as the union simulation bridge with the combination the dynamic simulation (ADAMS) and finite element analysis (ANSYS). The virtual prototype dynamic model of RB315/31.5 emulsion pump coupled rigidity and flexity are created in ADAMS. Thus, the dynamic analysis and simulation of Multi-body system coupled rigidity and flexity are done. The movement analysis and force characteristic finite element analysis of major parts were carried out.
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