仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
INSTRUMENT TECHNIQUE AND SENSOR
2015年
1期
65-67,80
,共4页
动车组%温度传感器%监测系统%轴温状态
動車組%溫度傳感器%鑑測繫統%軸溫狀態
동차조%온도전감기%감측계통%축온상태
EMUs%running gear%monitoring system%axle temperature condition
国内铁路运输飞速发展，高速动车组的运行速度进一步提升。由于运行速度的提升，高速动车组走行部分和齿轮箱的发热增多，容易导致热切轴。针对高速动车组在运行中产生热切轴现象，结合以往轴温监测系统的总体构成、原理和运行中发生的故障情况，深入分析系统的故障原因，采用NuMicro Nuc140作为主控芯片设计了基于车载以太网的新型轴温监测系统。经试验表明，该系统能够实时、精确监测高速运行动车组的轴温状态，对保证高速动车组的安全运行起到非常重要的作用。
國內鐵路運輸飛速髮展，高速動車組的運行速度進一步提升。由于運行速度的提升，高速動車組走行部分和齒輪箱的髮熱增多，容易導緻熱切軸。針對高速動車組在運行中產生熱切軸現象，結閤以往軸溫鑑測繫統的總體構成、原理和運行中髮生的故障情況，深入分析繫統的故障原因，採用NuMicro Nuc140作為主控芯片設計瞭基于車載以太網的新型軸溫鑑測繫統。經試驗錶明，該繫統能夠實時、精確鑑測高速運行動車組的軸溫狀態，對保證高速動車組的安全運行起到非常重要的作用。
국내철로운수비속발전，고속동차조적운행속도진일보제승。유우운행속도적제승，고속동차조주행부분화치륜상적발열증다，용역도치열절축。침대고속동차조재운행중산생열절축현상，결합이왕축온감측계통적총체구성、원리화운행중발생적고장정황，심입분석계통적고장원인，채용NuMicro Nuc140작위주공심편설계료기우차재이태망적신형축온감측계통。경시험표명，해계통능구실시、정학감측고속운행동차조적축온상태，대보증고속동차조적안전운행기도비상중요적작용。
Domestic railway transportation is developing rapidly , and the running speed of high-speed EMUs improved further . Because of the improved speed , the running gear and gearbox of high-speed EMUs produce more heat ,causing hot axle easily .In allusion to hot axle phenomenon of high-speed EMUs during operation , in combination with the former failure condition of axle tem -perature monitoring system in terms of total composition , principle and failure condition ,the causes of system failure were analyzed deeply and NuMicro Nuc140 was adopted as the master control chip to design a new type of axle temperature monitoring system based on-board Ethernet.The results show that the system could monitor the axle temperature condition of high -speed operating E-MUs in real-time and accurately , and it plays an important role in ensuring the safe operation of High -speed EMUs .
