Design and Simulation of Balanced Double-row Disc Flow Radial Piston Pump
The plunger pump is the main power component of the hydraulic system.In response to the prob-lem of radial force imbalance on the main shaft when the single-row radial plunger pump operates,this paper proposes a new type of radial plunger pump structure with a double-row rotor-stator staggered arrangement of bal-anced disc flow distribution.Based on the working principles of a balanced double-row disc flow radial piston pump,the AMESim simulation model is established.Through simulation analysis of its flow characteristics,a double-row nine plunger radial piston pump is selected for study.The influence law and mechanism of the pres-sure,plunger diameter,and discharge angle(the angle between two adjacent plunger plugs)of the plunger pump system on the radial force on the spindle are analyzed.The results show that the changes in system pres-sure and plunger diameter have a small impact on the amplitude of radial force,but they will form a sudden change in radial force,causing deformation of the spindle;as the row angle increases,the mutation frequency and instantaneous mutation amplitude of the radial force on the spindle will decrease,and gradually tend to a smooth curve.
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