Hydraulic System Principle Of Hydraulic Lifting Device

The hydraulic system is an independent hydraulic transmission device, which supplies oil according to the requirements of the main engine and controls the direction, pressure and flow of the oil flow. As long as we connect the hydraulic system with the actuator on the main engine-the cylinder with the oil pipe, the hydraulic machine can realize various prescribed actions and carry out the working cycle.

The hydraulic system is composed of a combination of pump devices, manifold blocks and valve combinations, fuel tanks, electrical boxes, and accumulators. The functions of each component are as follows:

(1) Device: equipped with a motor and an oil pump, it is the power source of the hydraulic station, which converts the mechanical energy into the pressure energy of the hydraulic oil;

(2) Manifold block: It is assembled by hydraulic valve and channel body, which regulates the direction, pressure and flow of hydraulic oil;

(3) Valve combination: The plate valve is installed on the vertical plate, and the pipe behind the plate is connected, which has the same function as the integrated block;

(4) Oil tank: plate-welded semi-closed container, equipped with oil filter air filter, etc., used for oil storage, oil cooling and filtration;

(5) Electrical box: equipped with a full set of control appliances;

(6) Accumulator: It is an energy storage device in the hydraulic system, which can convert the energy in the system into compression energy and store it. When the system needs it, it converts the compression energy into hydraulic energy and releases it to replenish it. Supply system. When the instantaneous pressure of the system increases, it can absorb this part of the energy, and the pressure of the entire system is normal.

The working principle of the hydraulic station is: the motor drives the oil pump to rotate, the pump sucks oil from the oil tank, and converts the mechanical energy into the pressure energy of the hydraulic oil. The hydraulic oil realizes the adjustment of direction, pressure and flow rate through the integrated block valve and the hydraulic valve. , Which is transmitted to the hydraulic cylinder of the hydraulic machinery through the external pipeline, thereby controlling the change of the direction of the mechanical transmission system, the size of the force and the speed of the speed.