| 尖轨密贴爬行测量方法及系统 |
| Measuring Method and System for Closing and Creeping of Switch Rail |
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| 中文摘要: |
| 尖轨作为铁路道岔的薄弱环节，其密贴和爬行位移变化关系到列车行车安全，需要定时检测和严格控制。本文提出了一种尖轨密贴爬行测量方法，并搭建了相应系统。利用动作引导杆引入尖轨密贴爬行位移变化，并将其转换为直线位移和小角度角位移。建立密贴爬行位移解算模型，并给出了标定方法。设计了专用的数据采集与发送电路，实现了对尖轨密贴间隙和爬行量的采集和监测。实验结果表明该系统测量误差小于0.2 mm，可有效满足尖轨密贴爬行高精度测量需求。 |
| 英文摘要: |
| The closing and creeping displacement changes of the switch rail that as the weak link of railroad turnout are related to the safety of the train，which requires regular detection and strict control. For this purpose，both method and system for measuring closing and creeping displacements are developed. The system uses a motion guide rod to convert the closing and creeping displacements into linear and small angular displacements. Moreover，a calculation model for closing and creeping displacements and a calibration method is established. A dedicated data acquisition and transmission circuit is developed to realize the collection and monitoring of the closing and creeping displacements. The experimental results show that the measurement error is less than 0.2 mm，which meets the requirement of high-precision measurement for the closing and creeping of switch rail. |
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| 中文关键词: 铁路运输 密贴 爬行 解算模型 |
| 英文关键词:railway transportation closing creeping calculation model |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2021.05.06 |
| 引用本文：翟文革1, 郑培珍2, 江海川2, 任同群2*.尖轨密贴爬行测量方法及系统[J].计测技术,2021,(5):. |
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