Hydraulic system composition
A complete hydraulic system consists of five parts, namely power components, executive components, control components, auxiliary components and working medium.
The function of the power element is to convert the mechanical energy of the prime mover into the pressure energy of the liquid. The power component refers to the hydraulic pump in the hydraulic system.
The entire hydraulic system provides power. The structure of hydraulic pumps generally includes gear pumps, vane pumps, plunger pumps, and screw pumps.
The function of the actuator is to convert the pressure energy of the liquid into mechanical energy and drive the load for linear reciprocating or rotary motion. operating units
There are hydraulic cylinders and hydraulic motors.
Control elements (ie various hydraulic valves) control and regulate the pressure, flow and direction of the liquid in the hydraulic system.
According to different control functions, hydraulic valves can be divided into pressure control valves, flow control valves and directional control valves. Pressure control valve is divided into overflow.
Flow valve (safety valve), pressure reducing valve, sequence valve, pressure relay, etc.; flow control valve including throttle valve, adjusting valve, diverting and collecting valve, etc.; direction control valve
Including one-way valve, hydraulic control one-way valve, shuttle valve, reversing valve, etc. According to different control methods, hydraulic valves can be divided into on-off control valves and fixed-value control valves.And proportional control valve.
Auxiliary components include accumulators, filters, coolers, heaters, oil pipes, pipe joints, oil tanks, pressure gauges, flow meters, and sealing devices
They play the auxiliary role of connecting, storing oil, filtering and measuring oil pressure, etc., please refer to "Hydraulic Transmission" and "Hydraulic System Design Series".
Working medium refers to the hydraulic oil or emulsion in various hydraulic transmissions, including various mineral oils, emulsions and synthetic hydraulic oils. The hydraulic system realizes movement and power transmission through it.
