Research on digital sensor for wire rope flaw detection based on magnetic balance
Aiming at the wire breakage,cross-sectional wear,rust and other damages of wire ropes in long-term operation,leading to safety hazards,it is pointed out that,regular safety monitoring and evaluation of the health status of steel wire ropes is crucial.A new method for identifying steel wire rope damage was proposed based on the spatial magnetic field balance mechanism to address the shortcomings of traditional strong magnetic detection methods.Firstly,the three-dimensional solid modeling using PRO/E was studied,and the magnetic circuit design was carried out.Secondly,the finite element analysis was used to compare the advantages and disadvantages of the X-axis and Y-axis magnetization directions,and the Y-axis magnetization direction was better than the X-axis magnetization direction according to the magnetic field line density and the change strength of the intermediate linear magnetic field.Finally,by using the three-dimensional magnetic field numerical analysis software,the appropriate sensor concentrating ring structure and sensing unit were designed and calculated.The results show that the wire rope flaw detection sensor based on electromagnetic field balance detection is better than that of the strong magnetic detection sensor.
coal mine wire ropeelectromagnetic balanceHall sensorfinite elementmagnetic ring
万方数据
维普
