2. Working principle of the power mechanism: the mechanical energy is transferred to the liquid through the oil pump, so that the liquid sealed in the container can generate hydraulic energy.
3. Working principle of actuator: including oil motor or oil cylinder. Their function is opposite to that of oil pump, which can convert the pressure energy of liquid into mechanical energy and make the working device produce rotary motion or linear displacement.
4. Working principle of control elements: including various operating valves, such as directional control valve, throttle valve and overflow valve. Used to control and adjust the pressure, flow and direction of liquid to meet the requirements of working performance of the mechanism.
5. Working principle of auxiliary components: including oil tank, oil pipe, oil connector and oil filter. Through these original components, the above three parts can be connected into a system to form a hydraulic device.
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