1: How does the hydraulic system transmit power?

Hydraulic transmission is a transmission form that uses the pressure energy of liquid to transmit power. The hydraulic transmission is used to realize the conversion of mechanical energy hydraulic energy mechanical energy.

First of all, the conversion is realized through the hydraulic pump station. The internal cavity of the rotating hydraulic pump gradually increases when it is connected with the oil pipe, forming an oil suction control. The oil is sucked in, and gradually shrinks when it is connected with the oil pressure port, forming an oil pressure cavity to discharge the oil into the system.

The second conversion is realized by the actuating element (hydraulic cylinder or hydraulic motor). The pressure oil pushes the moving part of the actuating element according to the Pascal principle to drive the load movement.

All kinds of control valves are used to limit, regulate, distribute and guide the pressure, flow and flow direction of the hydraulic source.

2: What are the components of the hydraulic system?

The hydraulic system consists of five parts: power components (hydraulic pump), actuating components (hydraulic cylinder or hydraulic motor), control components (various valves), auxiliary components and working media.

(1) Power element (hydraulic pump). Its function is to convert the mechanical energy of the prime mover into the pressure energy of the liquid, which is the power part of the hydraulic transmission.

(2) Actuator (hydraulic cylinder, hydraulic motor). Its function is to convert the hydraulic energy of the liquid into the mechanical energy of the working mechanism. The hydraulic cylinder moves in a straight line and the hydraulic motor rotates.

(3) Control elements. Control elements include pressure valve, flow valve, direction valve, etc. Their function is to adjust the speed of hydraulic motor steplessly as required, and regulate and control the pressure, flow and flow direction of working fluid in the hydraulic system.

(4) Auxiliary elements. In addition to the above three components, other components are auxiliary components, including pressure gauge, filter, energy storage device, cooler, pipe fittings (mainly including various pipe joints (flared, welded, ferrule, SAE flange), high pressure ball valve, quick connector, hose assembly, pressure measuring connector, pipe clamp, etc.), oil tank, etc. The main function of the auxiliary components is to cooperate with the main components to meet the traditional normal working requirements of the hydraulic system.

(5) Working medium. Working medium refers to the hydraulic oil or emulsion in various hydraulic transmissions, which realizes energy conversion through hydraulic pumps and hydraulic motors.