中低速磁浮接触轨动态检测系统设计与研究
涂俊周文武苏款袁伟
Design and Research of Dynamic Detection System for Medium-Low Speed Maglev Contact Rail
TU JunZHOU WenwuSU KuanYUAN Wei
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作者信息:湖南凌翔磁浮科技有限责任公司， 410028， 长沙
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Affiliation:Hunan Lingxiang Maglev Technology Co., Ltd., 410028, Changsha, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.04.042
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中图分类号/CLCN:TM922.6∶U237
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栏目/Col:应用技术
摘要:
［目的］接触轨为中低速磁浮列车提供安全可靠电能，是磁浮轨道交通系统工程中的重要组成部分。接触轨的安装会影响磁浮列车的可靠运行，需对接触轨性能进行检测。［方法］采用理论分析方法，根据F轨与接触轨的相对位置关系，得到中低速磁浮接触轨动态检测系统常用的3个检测关键点——轨高、轨偏及硬点，并提出了轨高、轨偏及硬点的检测方法。根据理论分析结果对接触轨动态检测系统进行机械结构设计并制作样机，通过试验对中低速磁浮接触轨动态检测系统进行测试验证，并评价中低速磁浮接触轨动态检测单元的重复性精度指标。［结果及结论］中低速磁浮接触轨动态检测系统中采用的类似受流器结构可有效减振，提高硬点检测精度；中低速磁浮接触轨动态检测系统的轨高、轨偏检测精度可达到0.5 mm，满足常规设计精度要求的±2 mm；轨高、轨偏重复检测精度可达到0.4 mm，硬点检测的重复检测精度可达到5g，均满足常规设计要求。
Abstracts:
［Objective］ Contact rail is an important component in maglev rail transit system engineering, providing safe and reliable electrical energy for medium-low speed maglev trains. The installation of contact rails can affect the reliable operation of maglev trains, so the performance of contact rails needs to be tested.［Method］ By adopting a theoretical analysis method and based on relative position relationship between F rail and contact rail, three common detection key points of dynamic detection system for medium-low speed maglev contact rail are obtained, i.e. rail height, rail deviation and hard points. A detection method for rail height, rail deviation and hard points is proposed. According to theoretical analysis results, the mechanical structure of the contact rail dynamic detection system is designed and a prototype is made. The dynamic detection system for medium-low speed maglev contact rail design is verified through experiments, and the repeatability accuracy index of the dynamic detection unit for medium-low speed maglev contact rail is evaluated.［Result & Conclusion］ The similar current collector structure used in the dynamic detection system for medium-low speed maglev contact rail can effectively reduce vibration and improve the hard point detection accuracy; the detection accuracy of rail height and rail deviation of the above-mentioned dynamic detection system can reach 0.5 mm, meeting the conventional design accuracy requirements of ±2 mm; the repeated detection accuracy of rail height and rail deviation can reach 0.4 mm, and the repeated detection accuracy of hard point detection can reach 5g, both meeting the conventional design requirements.
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