The Most Complete! Questions And Answers On 17 Tips Of ElevatorⅠ

- Oct 17, 2020-

1.How does the elevator work?

The elevator has a car and a counterweight, which are connected by steel wire rope. The steel wire rope is driven by the traction of driving device (traction machine) to make the elevator car and counterweight move up and down on the guide rail in the elevator.


2.Will the wire rope of elevator break?

The wire rope elevator for elevator is special, and the state has special regulations and requirements. The configuration of steel wire rope is not only to bear the elevator car and rated load, but also to consider the size of traction force. Therefore, the tensile strength of steel wire rope is greatly greater than the load capacity of the elevator, and their safety factor is more than 12. Generally, elevators are equipped with more than four wire ropes, and the steel wire ropes of primary elevator will not be broken.


3.Is there any danger of sudden power failure in elevator operation?

In case of sudden power failure or power supply line failure during the operation of the elevator, the elevator will automatically stop running and there will be no danger.

Because the elevator itself is equipped with electrical and mechanical safety devices, once power failure, the electric actuator will automatically brake, so that the elevator can not run.

In addition, if the power supply department has a planned power outage, it will inform in advance, or the elevator will stop operation in advance.


4.What should I do if the elevator suddenly speeds up?

The running speed of the elevator, whether ascending or descending, should be within the specified rated speed range.

Generally, there will be no overspeed. In case of overspeed, there is an anti overspeed device in the elevator control system. At this time, the device will automatically act to slow down or stop the operation of the elevator.


5.Can 5 elevator car overload be controlled automatically?

The load capacity of the elevator is different according to the needs. The elevator can only run within the specified load capacity. If it exceeds the specified load, the elevator will automatically alarm and can not run.


6.Is it harmful to people when the elevator is closed?

In the process of closing the elevator, if the hall car door touches people or objects, the door will automatically re open and will not hurt people. Because there is a switch on the door to prevent family members.

Once the door touches people or objects, the switch action makes the elevator unable to close the door, and then re open, and then close the door again. In addition, the closing force is prescribed by the degree that will not be achieved.


7.Can the hall door of elevator be opened?

The elevator hall door can not be opened outside the court. It can only be opened with special tools (the installation tools are mastered by the maintenance personnel). Passengers are not allowed to pick up the door, let alone open, or there will be a risk of falling into the well.


8.How to call the elevator?

When you need to take the elevator, you should select the direction button on the door panel of the elevator hall. Press the up button up and the direction button down. The elevator in the control system adopts the way of forward parking. If the elevator reaches this floor in the opposite direction, it will not stop.


9.Is there any protective measures for elevator squatting and roof flushing?

When the elevator squats at the bottom, the elevator car will exceed the first floor leveling position and drive downward until it stops on the buffer of the pit. Buffer is a protective device for this purpose, which is divided into spring type and hydraulic type according to the running speed of the elevator.

When the car squats on the buffer, it is called squatting. At this time, the buffer on the impact of the elevator car to produce a mitigation effect, not to cause serious injury to passengers in the elevator.