Cycloidal hydraulic motor of mixer The basic principle of the daily task: take the radial plunger hydraulic motor as an example to show how the hydraulic motor converts the hydraulic function into the mechanical kinetic energy of the rotation method. Principle of radial piston hydraulic motor. The swashplate and oil distribution baffle plate 4 are fixed, and the plunger 3 can move in the hole of the cylinder block 2. The axis of the swashplate intersects the axis of the cylinder block with an inclination angle δ. When the high pressure oil enters the plunger hole of the cylinder block through the dialog box with the oil baffle, the plunger of the high pressure chamber is ejected and pressed on the swashplate. The recoil force F of swashplate on plunger is dissolved into radial force Fx and vertical force Fy. Fx is in balance with the hydraulic working pressure acting on the plunger, and Fy causes the torque that makes the cylinder block rotate, pushing the shaft 5 to rotate. The torque caused by the hydraulic motor should be the sum of the torque caused by all the plungers in the high pressure chamber, R - the half diameter of the plunger's spreading circle on the cylinder block; θ - the intersection angle between the ith plunger and the vertical axis of the cylinder block.

It can be seen that with the change of angle θ, the torque caused by each plunger is changed, and the total torque output by the cycloidal hydraulic motor of the mixer is also pulsating.

In principle, Jh cycloidal hydraulic motor The hydraulic oil pump and hydraulic motor in the reverse way can replace each other. However, in general, the unmodified hydraulic oil pump is not suitable for use as a hydraulic motor. The reason is that considering the factors such as the balance of working pressure and the automatic compensation of gap sealing, the structures of the suction and discharge cavities of hydraulic oil pumps are mostly different, and only rotate towards each other. However, as a hydraulic motor, it is generally required to rotate in the forward and reverse directions and to have structural symmetry.