Analysis Of The Flow Quality Of A Piston Pump

Hydraulic transmission is also becoming more and more widespread, with the development of industrial technology from time to time. As the hydraulic pump of the heart of the hydraulic transmission system is more important, the positive displacement hydraulic pump, only the piston pump is the most ideal structure to achieve high pressure, high speed and large flow, under the same power, the radial size of the radial piston pump is large, the radial force is also large, often used in large torsion torch, low speed working conditions, as a press motor. The axial piston pump has a compact structure, small radial size, small moment of inertia, so the speed is higher, in addition, the axial piston pump is easy to variable, can automatically adjust the flow rate in a variety of ways, and the flow rate is large.

It is widely used in aircraft hydraulic systems, control systems and aero engine fuel systems. One of the most important types of hydraulic pumps used in aircraft. Axial piston pumps are widely used in construction machinery, lifting and transportation, metallurgy, ships and other fields.

The total efficiency is generally BH0.850.9, and the above formula meets the requirements. Linear shaft axial piston pump kinematics and flow quality analysis pump when working at a certain swash plate inclination angle, for axial piston pump. On the one hand, the plunger rotates with the cylinder block, making a circular motion along the plane of the cylinder block, and on the other hand, it does reciprocating linear motion relative to the cylinder block. The combination of these two motions makes the trajectory of any point on the plunger axis an ellipse. In addition, the plunger may also have the rotational motion of the relative cylinder around its own axis due to friction, which makes the wear and lubrication of the plunger tend to be uniform, and the favorable piston kinematic analysis is mainly to study the reciprocating linear motion of the plunger relative to the cylinder. That is, the analysis of the stroke, speed and acceleration of the plunger and the cylinder when doing relative motion, this analysis is the basis for studying the flow quality of the pump and the force of the main parts.