A broken strand of the elevator wire rope needs to be replaced?
Why is one wire rope of the elevator broken, and all the wire ropes must be replaced? Generally, elevators have multiple hanging wire ropes. If one of the wire ropes is damaged, it will warn us that there may be problems with the adjacent wire ropes, because when the elevator is installed, the wire ropes are all in the same batch, installed at the same time, and used at the same time. On the surface, nothing can be seen. There is a wire rope here that we replaced. It looks good on the surface, but the inside of the rope core has been stained with rust, so when we replace the wire rope, we need to replace it at the same time.
Wire rope with broken strands
Also , if we only replace one wire rope, it will cause the wire rope to be unevenly stressed, because the tension of the new wire rope and the old wire rope is different, just like the rubber band in my hand . The extension of the new wire rope is better, while the extension of the old wire rope is very poor, then this time will lead to uneven wear of the traction sheave, and the final result will be damage to the traction sheave. In severe cases, the wire rope may cause abnormal slippage with the traction sheave and cause a safety accident. This is like the front wheel or rear wheel of our car is replaced in pairs at the same time when the tire is replaced, so we replace the wire rope. At times, all of them need to be replaced at the same time.
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