Yuken A56 hydraulic pump distribution shaft radial piston pump

The structure and operating principle of the axial radial piston pump with hydraulic cylinder distribution. Yuken A56 hydraulic pump parts have a number of plunger holes evenly distributed in the radial direction on the rotor 3. The plunger l is installed in the hole. The head of 1 rests on the inner wall of the stator 2; there is an offset distance e between the center of the rotor 3 and the center of the stator 2.

On the fixed distribution shaft 5, opposite to the plunger hole, there are two upper and lower oil distribution chambers I and II separated from each other. The oil distribution chamber of the hydraulic cylinder is separated from the two axial holes and The suction and discharge ports of the pump are connected. When the drive shaft drives the rotor 3 to roll, because there is an offset distance e between the stator 2 and the rotor 3, when the plunger 1 rolls with the rotor 3, Yuken A3H series plunger oil pump accessories reciprocate in the plunger hole. .

When the rotor 3 rolls in the clockwise direction, the plunger 1 extends outward when it passes through E half a circle, the volume of the plunger cavity gradually increases, and the oil is sucked from the axial hole through the oil port on the distribution bushing 4; In the second half of the cycle, the inner wall of the stator pushes the plunger inward, the working volume at the bottom of the plunger is gradually reduced, and the oil is discharged outward through the distribution shaft 5.

The hydraulic cylinder moves the stator and changes the offset distance e to change the pump displacement. Oil-lift plunger pump accessories When moving the stator to make the amount of migraine change from positive to negative, the suction and discharge ports of the pump are interchanged, so the radial plunger pump can be a one-way or two-way variable pump. In order to make the flow pulsation as small as possible, an odd number of plungers is generally used.

In order to increase the flow rate, the radial piston pump sometimes widens the cylinder in the axial direction and makes the pistons in multiple rows. For a multi-row radial piston pump with row number i, its displacement and flow are separated by i times the displacement and flow of a single-row radial piston pump.