Gear Pump Master-slave Gear Cavity Pressure Distribution’s Asymmetry Analysis, Gear Pump Master-slave Gear Cavity Pressure Distribution’s Asymmetry Analysis

Abstract

Abstract: The phenomenon of asymmetric pressure distribution in the master-slave gear cavity was found by studying the pressure distribution in gear pump master-slave gear cavity. Use one type high pressure gear pump as the research object. The relationship between the radial clearance and the deflection of gear shaft was analyzed. The nonlinear differential equation of gear pump pressure transition zone was established to analysis the internal flow field of master-slave gear cavity. To compared the pressure of master-slave gear cavity in the corresponding position, the conclusion of asymmetric pressure distribution in the master-slave gear cavity was obtained. Test data show that the corresponding point pressure experiment and theoretical error is less than 5.0%.The pressure difference is 4.17 MPa in the transition zone and the pressure difference is 1.55 MPa at the end of high pressure tank on the rated conditions.The study provided a theoretical basis for the high pressure gear pump gear cavity pressure distribution of asymmetric analysis and the end plate moment calculation., The phenomenon of asymmetric pressure distribution in the master-slave gear cavity was found by studying the pressure distribution in gear pump master-slave gear cavity. Use one type high pressure gear pump as the research object. The relationship between the radial clearance and the deflection of gear shaft was analyzed. The nonlinear differential equation of gear pump pressure transition zone was established to analysis the internal flow field of master-slave gear cavity. To compared the pressure of master-slave gear cavity in the corresponding position, the conclusion of asymmetric pressure distribution in the master-slave gear cavity was obtained. Test data show that the corresponding point pressure experiment and theoretical error is less than 5.0%.The pressure difference is 4.17 MPa in the transition zone and the pressure difference is 1.55 MPa at the end of high pressure tank on the rated conditions.The study provided a theoretical basis for the high pressure gear pump gear cavity pressure distribution of asymmetric analysis and the end plate moment calculation.

Key words: gear pump, gear shaft, asymmetry, end plate, moment, gear pump, gear shaft, asymmetry, end plate, moment

References

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