The safety factor of the elevator depends partly on the safety factor of the traction wire rope. There are two static and dynamic loads in the wire rope. However, the main service life of the wire rope is static load. In practical applications, only static load is considered for calculation simplification. Practical calculations.
Select the wire rope for the elevator. The diameter of the wire rope is very important. In order to improve the strength of the wire rope and prolong the service life, the diameter of the wire rope must be selected to the most suitable size. For the calculation of the safety factor, the diameter of the wire rope is selected according to the national approved standard. The safety factor, in turn, weighs the safety performance of the wire rope for the elevator to ensure the service life of the wire rope.
The tensile load is the amount of change in the load that the wire rope is subjected to during the operation of the elevator and its movement. In elevators with good maintenance and repair, the load on each rope during operation should be basically the same.
If the wire rope is not properly maintained due to improper maintenance of the wire rope, the compressive stress between one or several wire ropes and the wheel groove will be greatly increased, and the wear of the wire rope will be accelerated, which directly affects the use of the wire rope. life. Therefore, it is clearly stated in the elevator supervision and inspection rules that the deflection of the traction wire rope and the average value are not more than 5%.