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1.南昌航空大学 无损检测技术教育部重点实验室,南昌 330063
2.河北梦卡森科技发展有限公司 研发部,廊坊 065001
3.江西省检验检测认证总院 特种设备检验检测研究院 赣州检测分院,赣州 341000
XIA Guisuo, E-mail: xiaguisuo@163.com
Received:26 August 2024,
Revised:2024-09-30,
Published:15 May 2026
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刘松源,夏桂锁,张帅,等. 电梯曳引钢带疲劳状态的弱磁监测[J]. 机械强度,2026,48(5):40-48.
LIU Songyuan,XIA Guisuo,ZHANG Shuai,et al. Weak magnetic monitoring of fatigue condition of elevator steel belt for drive[J]. Journal of Mechanical Strength,2026,48(5):40-48.
刘松源,夏桂锁,张帅,等. 电梯曳引钢带疲劳状态的弱磁监测[J]. 机械强度,2026,48(5):40-48. DOI: 10.16579/j.issn.1001.9669.2026.05.005.
LIU Songyuan,XIA Guisuo,ZHANG Shuai,et al. Weak magnetic monitoring of fatigue condition of elevator steel belt for drive[J]. Journal of Mechanical Strength,2026,48(5):40-48. DOI: 10.16579/j.issn.1001.9669.2026.05.005.
目的
2
电梯复合曳引钢带长期承受外部应力,易产生磨损、变形、断丝等缺陷,严重时会引发钢带断裂事故。为有效预防此类安全事故发生,开展了曳引钢带疲劳破坏的相关监测试验。
方法
2
在疲劳实验机上搭建试验平台,进行曳引钢带拉伸疲劳试验,模拟其在反复服役过程中的疲劳破坏进程;同时采用高精度弱磁传感器采集钢带表面的磁感应强度信号,重点分析信号峰峰值的变化规律。
结果
2
试验结果表明,磁感应强度峰峰值曲线的变化可无失真地反映曳引钢带在应力作用下的疲劳破坏全过程;曳引钢带内部钢丝的疲劳破坏进程并非平稳发展,而是呈现出明显的阶段性特征;疲劳周期内磁感应强度峰峰值的变化趋势能够对曳引钢带的疲劳破坏进行有效预警。
Objective
2
Elevator composite traction steel belts are prone to wear
deformation
broken wires and other defects when exposed to external stress for a long time. In severe cases
it may cause steel belt breakage accidents. To effectively prevent such safety accidents
relevant monitoring test on the fatigue failure of traction steel belts were carried out.
Methods
2
An test platform was set up on the fatigue testing machine to conduct tensile fatigue tests on the traction steel belt
simulating its fatigue failure process during repeated service. At the same time
high-precision weak magnetic sensors were used to collect the magnetic induction intensity signals on the surface of the steel strip
with a focus on analyzing the variation law of the peak-to-peak values of the signals.
Results
2
The test results show that
the variation of the peak-to-peak curve of magnetic induction intensity can reflect the entire fatigue failure process of the traction steel belt under stress without distortion
the fatigue failure process of the steel wires inside the traction steel belt does not develop steadily but shows distinct phased characteristics
and the peak-to-peak variation trend of magnetic induction intensity within the fatigue cycle can effectively warn of the fatigue failure of the traction steel belt.
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