Classification of hydraulic systems

Classification of hydraulic systems

Hydraulic components can be divided into three categories: power components, control components and executive components. Although they are all hydraulic components, their own functions and technical requirements for installation and use are also different, and they are introduced as follows:

1. What is a power component?

Power components refer to various hydraulic pumps.

1. There are two structural types of gear oil pump and series pump (including external meshing and internal meshing).

2. Vane pumps (including single-stage pumps, variable displacement pumps, two-stage pumps, and duplex pumps).

3. Piston oil pumps are further divided into axial piston oil pumps and radial piston oil pumps. Axial piston pumps include quantitative pumps, variable displacement pumps, (variable

The volume pump is divided into manual variable, pressure compensation variable, servo variable, etc.) From the structure, it is divided into two oil distribution methods: end oil distribution and valve oil distribution, and the oil distribution type of radial piston pump, Basically, it is a valve type oil distribution.

2. What are the control components?

All kinds of hydraulic valves are control components.

1. Pressure control valve

(1) Pressure control valves include: relief valve, electromagnetic relief valve, unloading relief valve, one-way relief valve and pressure reducing valve, one-way pressure reducing valve

Valves and sequence valves and one-way sequence valves, etc.

(2) The scope of the sequence valve is divided into direct control sequence valve, remote control sequence valve, unloading valve, direct control one-way sequence valve, remote control

There are seven kinds of one-way sequence valves, direct control balance valves and remote control balance valves, as well as pressure relays and various pressure control valves. In various hydraulic transmission systems, they are used in various in the hydraulic system.

2. Directional control valve

Directional control valves include check valves, hydraulic control check valves, electromagnetic reversing valves, electromagnetic ball valves, electromagnetic reversing valves and manual reversing valves

And manual rotary valve, etc.

3. Flow control valve

Flow control valves include: throttle valve, one-way throttle valve, speed regulating valve, one-way speed regulating valve and stroke throttle valve and one-way stroke throttle

Valve, one-way stroke speed regulating valve, etc.

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