Dalian Zhongzhouxian Marine Equipment Co., Ltd

Working principle of hydraulic motor

Due to the action of pressure oil, the unbalanced force causes the rotor to generate torque. The output torque of a blade 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 its speed is determined by the flow rate of the input hydraulic motor. Since hydraulic motors generally require the ability to rotate in both forward and reverse directions, the blades of blade type hydraulic motors need to be placed radially. In order to ensure that there is always pressure oil flowing through the root of the blade, a one-way valve should be installed on the path connecting the return and pressure oil chambers to the root of the blade. To ensure that the blade type hydraulic motor can start normally after the pressure oil flows through, the top of the blade and the inner surface of the stator must be in close contact to ensure good sealing. Therefore, a pre tension spring should be installed at the root of the blade. The blade type hydraulic motor has a small volume, low moment of inertia, and sensitive action, making it suitable for situations with high commutation frequency. However, it has a large leakage and is unstable when working at low speeds. Therefore, blade type hydraulic motors are generally used in situations where high speed, low torque, and sensitive action are required.

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