Hydraulic parts


Hydraulic parts are the core components that make up the hydraulic system, and they play different roles in the system, working together to achieve energy transfer and control. Here's a closer look at the hydraulic parts:

First, Power components

The power component mainly refers to the hydraulic pump, whose role is to convert the mechanical energy of the prime mover into the pressure energy of the liquid to provide power for the entire hydraulic system. The structure of hydraulic pumps is diverse, and the common ones are gear pumps, vane pumps and piston pumps.

Second, the actuator

The actuators mainly include hydraulic cylinders and hydraulic motors, whose role is to convert the pressure energy of the liquid into mechanical energy and drive the load to make linear reciprocating motion or rotary motion.

Hydraulic cylinder: The hydraulic cylinder is one of the main actuators in the hydraulic system, which converts the hydraulic energy into mechanical energy according to the needs of the system, producing linear motion. There are various types of hydraulic cylinders, including piston hydraulic cylinders, plunger hydraulic cylinders, rotary hydraulic cylinders and combination hydraulic cylinders.

Hydraulic motor: Similar to hydraulic cylinders, hydraulic motors convert the hydraulic energy of a liquid into mechanical energy, but it produces rotational motion rather than linear motion. The types of hydraulic motors include geared hydraulic motors, vane hydraulic motors, and plunger hydraulic motors, among others.

Third, Control elements

Control elements are various hydraulic valves that control and regulate the pressure, flow and direction of fluids in hydraulic systems. Hydraulic valves can be divided into pressure control valves, flow control valves and directional control valves according to their different control functions.

1. Pressure control valve: used to regulate and control the pressure in the system, including relief valve (safety valve), pressure reducing valve, sequential valve and pressure relay, etc.

2. Flow control valve: used to regulate and control the flow rate in the system, including throttle valve, speed regulating valve and diverter valve, etc.

3. Directional control valve: used to control the flow direction of the liquid in the system, including check valves, reversing valves, etc.

Fourth, auxiliary components

Auxiliary components include oil tanks, oil filters, oil pipes and fittings, sealing rings, pressure gauges, oil level oil thermometers, etc., which also play an important role in the hydraulic system.

1. Oil tank: used to store hydraulic oil, and at the same time play the role of heat dissipation, precipitation of impurities and separation of bubbles in the liquid.

2. Oil filter: used to filter impurities and pollutants in the oil to maintain the cleanliness of the oil.

3. Oil pipes and pipe joints: used to connect various components in the hydraulic system and transfer oil.

4. Sealing ring: used to seal the joint surface in the hydraulic system to prevent oil leakage.

5. Pressure gauge: used to measure the pressure in the hydraulic system and help the operator understand the working status of the system.

Oil Level Oil Thermometer: Used to measure the oil level and oil temperature in the hydraulic oil tank to ensure the normal operation of the system.

Fifth, Hydraulic medium

Hydraulic medium is the working medium that transmits energy in the hydraulic system, which can be various mineral oils, emulsions and synthetic hydraulic oils. The choice of hydraulic media has an important impact on the performance and service life of the system, so it is necessary to select the appropriate hydraulic medium according to the requirements of the system.


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