Elevator Manufacturer Explains Hydraulic Elevator Structure

The principle of the elevator is very simple, it is just a compartment connected to the lifting system. By tying the rope to the box, you get the basic shape of the elevator. Of course, modern passenger and freight elevators are more complicated than this. Elevator Manufacturer Fuji will take you to understand.

Two mainstream elevator designs are currently used: hydraulic elevators and rope-driven elevators. First introduce the basic principle of hydraulic elevators.

The hydraulic elevator system uses hydraulic cylinders to lift the elevator car, and the hydraulically driven piston is mounted in the cylinder.

The cylinder is connected to the liquid pump system (typically, this hydraulic system uses oil, but other incompressible liquids can also be used). The hydraulic system consists of three parts:

Liquid tank (reservoir)

Motor driven pump

Valve installed between the cylinder and the oil storage tank

The pump delivers liquid from the tank to the pipe leading to the cylinder. When the valve is open, the pressurized liquid returns to the passage with minimal resistance. However, when the valve is closed, the pressurized liquid has nowhere to go and must flow into the cylinder. As the liquid flows into the cylinder, the liquid pushes the piston, causing the elevator car to rise.

The weight of the elevator car and load will cause the piston to press down, forcing oil into the reservoir. Then, the elevator car will gradually descend. In order to park the elevator car on the lower floor, the control system will close the valve again. In order to lower the car, the elevator control system sends a signal to the valve. The piston stops in the oil and the elevator car remains in its current position.

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