Influence Of Inertia Force On Some Parts Of High Speed Swash Plate Axial Piston Pump On The Force

Swash plate axial piston pump has the characteristics of high speed,small weight in volume and high reliability.The development of high speed will increase the inertia force of the moving components,increase the power consumption of the pump,and cause the cavitation.Among them,the larger the inertia force will inevitably change the stress state of swash plate,cylinder block,pump shaft and other components in the piston pump,which will lead to the increase of vibration and noise of the pump and affect the performance or even failure of the piston pump.Based on the rated speed12500 r/min of a certain type of high speed air piston pump as an example,adopt the method of combining theoretical analysis and numerical simulation,the plunger pump in the inertial force of the inertial force and moment balance of inclined plate,block,and the pump shaft by the contact force of the cylinder body on the pump shaft with the influence of shear force,bending moment and bending deformation of a systematic study of the main content of the thesis are as follows :The first chapter elaborates the background and significance of the research.The research status of the influence of the development of high speed on the swashplate moment,cylinder overturning moment and pump shaft force of swashplate axial piston pump is summarized.Summarizes the main research content of this thesis.In the second chapter,the inertial force mathematical model of the piston slipper assembly and the oil in the plunger cavity is established.In the third chapter,the force calculation model of the swash plate under the effect of inertia force at high speed is established,and the force track of the swash plate under the action of oil in the plunger cavity and the inertia force of the plunger sli pper assembly and the law of the influence on the swash plate moment are analyzed.In the fourth chapter,the calculation model of cylinder block overturning moment under high rotation speed,and the influence law of rotation speed on cylinder block overturning moment is analyzed.In the fifth chapter,the mathematical model of the acting force of the cylinder block on the pump shaft is established,and the shear force,bending moment and bending deformation of the simplified mo del of the pump shaft is analyzed.Finally,the research work of this thesis is summarized and prospected.