School of Mechanical and Electrical Engineering, Beijing Polytechnic College

针对钢丝绳在长期运行过程中会出现断丝、截面磨损、锈蚀等损伤而形成安全隐患的问题,指出应进行钢丝绳健康状态定期安全检测和评估。针对常用的强磁检测法的不完善之处,提出基于空间磁场平衡机制检测的新型钢丝绳损伤判别方法。首先研究采用PRO/E进行三维实体建模,进行了磁路设计;其次采用有限元分析,比较X轴、Y轴磁化方向的优劣,依据磁力线密度、中间直线磁场变化强度得出Y轴磁化方向优于X轴磁化方向;最后通过运用三维磁场数值分析软件,设计计算出合适的传感器聚磁环结构和感知单元。实验研究结果表明,基于空间磁场平衡机制的新型钢丝绳探伤传感器的检测效果较传统强磁探伤传感器的检测效果有明显改善。

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.

教育部中国教育国际交流协会法国施耐德绿色低碳产教融合究项目(SNDCJ2023-1);北京工业职业技术学院科研重点课题(BGY2023KY01Z)

张明珠.基于磁平衡的钢丝绳探伤数字传感器研究[J].煤炭工程,2024,56(9):179-185.