2016年9月8日星期四

Elevator working principle

What about the main components of whole elevator set?
Part 1: Traction motor drives the traction wheel rotation through reducer gear,on the traction rope and the traction wheel traction force generated by the implementation of the car and the heavy lifting movement, to achieve transportation purpose.
Part 2: The car is a cabin to carrying passengers or other loads.
Part 3:Counterweight is used to balance the load of the car and reduce the power of the motor.
Part 4:Compensation device to compensate the movement of the traction rope tension and weight change, the traction motor load is stable, the car can be accurately docked
Part 5:Electrical system to achieve the control of the elevator movement, while the completion of the selection layer, flat layer, speed, lighting work
Part 6:Indicate the car position in the direction of movement and the floor of the car at any time.
Part 7:Safety device to ensure the safety of the elevator operation

Learn more by below information.
1st  What about the elevator types?

Elevators are devices that move people and goods vertically within a dedicated shaft that connects the floors of a building. In almost all modern multi-floor buildings, elevators are required to provide universal access.
There are three main types of elevators commonly used: traction elevator with a machine room , machine room less elevator , and hydraulic elevator.
However, there are variations on each types,and the most widely used is passenger elevator and freight elevator.

2nd How to lift up and running?

There is a elevator car and a counterweight, the rope connecting them by wire rope through traction drive device (hoisting machine), driven by the elevator car and the elevator guide focuses on the up and down movement.

3rd Whether the elevator rope will break?

Elevator rope is dedicated elevator, the state has special regulations and requirements. Rope configuration does not assume just for the elevator car and the rated load capacity, also taking into account the size of the traction force, so much greater than the tensile strength of steel wire rope elevator load, they are a safety factor of 12 or more, and usually are elevator with four or more wire rope, wire rope under normal circumstances would not lift off simultaneously.

4th Elevator sudden power failure if there is danger?
Elevator in case of sudden power failure or power line failure, the lift will automatically stop running, there will be no danger. Because the elevator itself has electrical, mechanical safety devices, a power failure, the elevator brakes automatically brake the elevator can not run. In addition, the electricity sector if planned power outage, will advance notice or advance your home elevator stops running.
5th  How to do when the elevator suddenly speed up?
Elevator speed, whether upstream or downstream, should be run at the rated speed specified range, generally not speeding, speeding if, in the elevator control system is anti-speeding device, then the device will start automatically, elevator to slow down or stop.

6th  If the elevator car can automatically control it when overloading?

Elevator load vary according to different needs, the elevator can only run within the specified load, the beyond, the elevator will automatically alarm, and can not run.

7th  When the elevator door closing if caught would have caused harm?
The elevator door closing process, if the hall door sedan hit people or things, the door will automatically re-open, do not hurt. Because people with a pinch switch on the door, once the door to touch people or things, this switching operation of the elevator can not be closed and re-opened, then closed again. In addition, the closing force is provided not to the extent of wounding.

8th Whether the elevator landing door can be pawed by hand?
Elevator landing door is an important part of elevator design.In the hall can not be pawed, you must use special tools to open (by service personnel in charge of special tools). Passengers are not allowed to grilled door, or there will be danger of falling of the hoistway.

9th How to call the elevator?
When you need to take the commercial elevator,
push the call button on the elevator hall call panel.

10th When the elevator suddenly power offer or have a fault, how shall we do?
When you are locked in the car, you should obey the command of the elevator driver, if the driver is not in the situation, through the communication devices and related personnel to contact, in order to rescue.

11th What should pay attention to those matters when entering the car?
When you enter the car, if the elevator door open, to see whether the elevator in the level position, especially when the night light is not clear, we should pay more attention to the car in this layer, otherwise it may cause injury, and should be fast.

12th The operator staff of elevator installation, repair and maintenance should obtain the appropriate qualifications?
Yes. The elevator installation, maintenance, transformation of units shall be issued by the Bureau of quality and technical supervision qualification certificate, then is able to be engaged in relevant work; elevator installation, repair and maintenance, elevator operators shall obtain the special operator certificate.


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