Research and experiment on detection methods for elevator wire rope damage

As an important component of the elevator traction system, wire rope carries all the loads of the elevator. How to detect the damage of wire ropes accurately and efficiently is currently an urgent problem that needs to be solved. The country has issued multiple standards to regulate the failure forms and scrapping conditions of steel wire ropes, such as GB/T 38803-2020, GB/T 8903-2018, GB/T 31821-2015. There are currently two main methods for electromagnetic testing of steel wire ropes, local damage detection method and metal cross-sectional area loss detection method. These two detection methods adopt the principles of leakage magnetic detection distance and main magnetic flux detection in electromagnetics. On the basis of studying the damage forms and scrapping conditions of wire ropes, we conduct magnetic induction detection tests through manual damage. The experimental results show that this method can effectively detect the damage degree and location of wire ropes, and has high guiding significance for on-site inspection of elevators.