The expert can introduce Ben's books on hydraulic
Hydraulic system is mainly composed of: power components (pump), executive components (cylinder or hydraulic motor), control components (valves), auxiliary components and working medium of five parts. The function of the power element (oil pump) is to convert the liquid from the mechanical energy of the original motive to the liquid pressure energy. It's the power part of the hydraulic drive. The actuator (oil cylinder, hydraulic motor) is the hydraulic energy that converts liquid to mechanical energy. In this case, the oil cylinder does a straight line and the motor spins.
Control elements include pressure valves, flow valves and direction valves. Their function is to adjust the speed of the fluid motivation according to the need, and control the pressure, flow and flow direction of the fluid in the hydraulic system. 4, auxiliary components Besides the above three parts of other components, including the pressure gauge, oil filter, energy storage device, cooler, pipe fittings {mainly includes: all kinds of pipe joint (flaring type, welding type, card type, sae flanged), high pressure ball valve, quick change connectors, hose assembly, pressure joints, pipe clamp, etc} and the fuel tank and so on, they are also very important. The medium of work medium is the hydraulic oil or emulsified liquid in various hydraulic transmission, which is converted by oil pump and liquid motive.
Hydraulic component classification Power component - gear pump, vane pump, plunger pump, screw pump... Execution component - hydraulic cylinder: piston hydraulic cylinder, plunger hydraulic cylinder, swing hydraulic cylinder, combined hydraulic cylinder Hydraulic motor: gear hydraulic motor, blade hydraulic motor, plunger hydraulic motor Control component - directional control valve: one-way valve, reversing valve Pressure control valve: overflow valve, pressure reducing valve, sequence valve, pressure relay, etc Flow control valve: throttle valve, governor valve, shunt valve Auxiliary components - accumulators, filters, coolers, heaters, tubing, pipe joints, fuel tanks, pressure gauges, flowmeters, sealing devices, etc The composition of hydraulic transmission system
A complete hydraulic system consists of five parts: the power component, the actuator, the control component, the auxiliary element and the hydraulic oil. The power element is used to convert the mechanical energy of the original motive into the liquid pressure energy, which is the oil pump in the hydraulic system, which provides the power to the whole hydraulic system. The hydraulic pump is structured in the form of gear pumps, vane pumps and plunger pumps. The function of the actuator, such as a hydraulic cylinder and hydraulic motor, is to convert the pressure of the liquid to the mechanical energy, and the driving load as a straight and reciprocating motion. The control element (i.e., various hydraulic valves) controls and regulates the pressure, flow and direction of the fluid in the hydraulic system. Hydraulic valves can be divided into pressure control valves, flow control valves and directional control valves according to the control function. The pressure control valve is divided into overflow valve (safety valve), relief valve, sequence valve, pressure relay, etc. Flow control valves include throttle valves, adjustment valves, and diverter collector valves; Directional control valves consist of one-way valve, liquid control one-way valve, shuttle valve, reversing valve, etc. According to the control mode, the hydraulic valve can be divided into switch control valve, fixed value control valve and proportional control valve. The auxiliary elements include the oil tank, oil filter, tubing and pipe joint, sealing ring, pressure gauge, oil level oil temperature meter, etc. Hydraulic oil is the medium of the energy transfer energy in hydraulic system, there are various kinds of mineral oil, emulsified liquid and hydraulic oil
