北京地铁6号线弓网异常磨耗原因解析及改进措施  

Analysis on Causes of Excessive Pantograph-Catenary Wear in Beijing Metro Line 6 and Countermeasures

作　　者：李明 李立照 LI Ming;LI Lizhao(Beijing Metro Technology Development Co.,Ltd.,Beijing 100000,China)

机构地区：[1]北京地铁科技发展有限公司,北京100000

出　　处：《电工技术》2024年第12期166-170,共5页Electric Engineering

摘　　要：北京地铁6号线自西延线开通试运营以来,受电弓和接触网出现异常磨耗,受电弓碳滑板磨耗速率急剧增大,表面呈粗糙形貌。汇总了该现象导致的设备故障并进行了测试试验。经分析,认为导致弓网异常磨耗的根本原因是新增电客车受电弓压力较小,引起了弓网间离线电弧发生的频率增大,导致弓网间接触位置温升增大、接触线软化、碳滑板材质变化,使弓网间磨损速率急剧增加,接触线出现拉丝形态。为此,提出了改进弓网关系的措施。The west extension of Beijing Metro Line 6 encountered since its initial operation excessive wear between the pantograph and the catenary,manifested by a dramatic increase in wear rate and a rough surface morphology of the carbon slider.This paper reports endeavors on analysis and handling of the aforementioned anomaly,including summarizing the induced equipment failures and performing experimental test.It is believed through the test analysis that the root cause is inadequate pressure of pantographs of the newly added passenger cabins.That inadequacy exacerbates pantograph-catenary wear and leads to wire drawing by first increasing frequency of offline arc between pantograph and catenary,and subsequently resulting in larger temperature rise of the contact position,softening of the contact wire,and evolution of the slider substances.The paper also puts forward specific countermeasures for improving the pantograph-catenary relationship.

关 键 词：受电弓碳滑板 接触网 接触压力 弓网异常磨耗 

分 类 号：U213.9[交通运输工程—道路与铁道工程]