Detection And Experimental Study Of Wire Rope Broken Wire Damage Based On Principle Of Magnetic Fusion Detection

Wire ropes are widely used in various key areas of modern industrial production and play an extremely important role.Because steel wire ropes are often used in complex and harsh environments,they are affected by uncertain loads,mechanical shocks,wear and corrosion during long-term operation,so they are prone to breakage,corrosion,wear and other damage,and are not easily detected in time.There are significant safety hazards for safety production and production personnel.Therefore,accurate detection and diagnosis of wire rope damage,to avoid the occurrence of wire rope production accidents,is of great significance in ensuring the safety of production personnel and improving production efficiency.In recent years,although there are many researches on wire rope damage detection technology,due to the complexity of the wire rope structure,the working environment of the wire rope and the diversity of the damage form,the actual detection effect is not satisfactory.The magnetic field characteristics and variations formed after the wire rope damage are complex and diverse.Moreover,the nature of the damage and the magnetic field characteristics formed have not formed a mature and perfect theoretical relationship model,which has made the development of wire rope damage detection technology very difficult.The detection instrument also has many problems in the detection accuracy and versatility of the wire rope damage.Based on the comprehensive analysis of the principle and method of electromagnetic detection of wire rope damage and the characteristics of leakage magnetic field of wire rope damage,this paper proposes a wire rope broken wire detection method based on the principle of magnetophoresis detection,and designs the wire rope damage detection exciter and wire rope damage aggregation.Magnetic detection sensor,and using finite element analysis technology to simulate and optimize the structure and performance indicators of the exciter and sensor.The wire rope damage signal acquisition system based on PXI-6281 multi-function data acquisition card and the wire rope damage signal monitoring and processing system based on the visualization software LabVIEW are designed.Together with the front-end magnetic detection sensor,the wire rope damage detection system is formed.The system can realize the online real-time monitoring of the wire rope damage in a simple and clear way.The collected damage signal data can be further processed byMatlab software in real time to obtain the signal peak value,the wave width,the area under the waveform and the four characteristic quantities of the wavelet energy.Eigenvalues.In turn,quantitative identification of wire rope broken wire damage is realized.Based on the analysis of the actual operating conditions of the wire rope,a comprehensive test bench for the wire rope safety inspection system was designed,including: wire rope real-time quantitative simulation loading system,wire rope damage detection exciter,sensor,wire rope damage and tension signal acquisition and processing system,and complete machine control system.,made a variety of wire rope damage test pieces of wire rope.The wire breakage and tension test were carried out on various wire broken specimens under different tension and different running speeds.The data analysis results obtained by the test were compared with the simulation results to verify the magnetic resonance detection designed in this paper.The sensor has high detection accuracy and stable performance,and the wire rope broken wire damage detection method based on the principle of magnetization detection is feasible.Providing new technical approaches and feasible methods for wire rope safety monitoring.