Nov 27, 2018
Due to the action of the pressure oil, the unbalanced force causes the rotor to generate torque. The output torque of the vane type hydraulic motor is related to the displacement of the hydraulic motor and the pressure difference between the inlet and outlet of the hydraulic motor, and the rotational speed is determined by the flow rate of the input hydraulic motor. Since hydraulic motors are generally required to be able to be reversed, the blades of the vane hydraulic motor are placed radially. In order to make the root of the blade always have pressure oil, a check valve should be arranged on the passage of the back and pressure oil passage to the root of the blade. In order to ensure that the blade type hydraulic motor can start normally after the pressure oil is passed, the top of the blade must be The inner surface of the stator is in intimate contact to ensure a good seal, so a preloaded spring should be placed at the root of the blade. The blade type hydraulic motor has small volume, small moment of inertia and sensitive action, and can be applied to occasions with high commutation frequency; however, the leakage amount is large and unstable at low speed. Therefore, the blade type hydraulic motor is generally used in applications where the rotation speed is high, the torque is small, and the action requirements are sensitive.