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The Principle Of Escalator Work

Edit:Star Elevator International Ltd   Date:Apr 25, 2017

The principle of escalator work

The core part of the escalator is two chains, which circulate around two pairs of gears. At the top of the escalator, there is a motor driven transmission gear to rotate the chain. A typical escalator uses a 100 hp engine to turn the gears. Both the engine and the chain system are installed in a truss, which refers to a metal structure extending between the two floors.

 Unlike a conveyor that moves a plane, the chain moves a set of steps. The most interesting place for escalators is the way these steps move. When the chain moves, the steps are kept level. At the top and bottom of the escalator, the steps are folded to each other to form a platform. So that the upper and lower escalators easier.

Each step on the escalator has two sets of wheels that rotate along two separate tracks. The upper device (the wheel near the top of the step) is connected to the rotating chain and is pulled by the drive gear at the top of the escalator. The wheels of the other groups just slide along the track, behind the first set of wheels.

The two tracks are separated from each other so that each step can be kept level. At the top and bottom of the escalator, the track is in a horizontal position, so that the steps are flattened. Each step has a series of recesses so that it is connected to the front and rear steps in the flattening process.

In addition to rotating the main chain, the escalator in the motor can move the handrail. The armrest is just a rubber conveyor that circulates around a series of wheels. The conveyor belt is precisely configured so that the movement speed of the steps is exactly the same, so that the occupant feels smooth.

The escalator system, unlike elevators, can bring people up to dozens of floors, but it is ideal for providing short distances. This is because of the high load factor of the escalator. After the elevator is full, it must wait until it arrives at the designated floor and returns other people to the elevator. In the escalator, as long as there is a person to reach the upper, it will make room for other people.


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