补偿装置是接触网的重要组成部分,是保证接触网设备安全可靠运行的关键部分,但受非工作支下锚扭面、环境温度变化等因素的影响,补偿绳与补偿滑轮偏磨问题普遍存在,易造成补偿装置卡滞甚至发生补偿绳脱槽进而导致断线事故发生。针对京九线补偿滑轮偏磨原因及危害进行分析,提出处理办法及应对措施。 The compensation device is an important part of the catenary, which is a key part to ensure the safe and reliable operation of the catenary equipment. However, due to the impact of non-working support such as anchor surface, ambient temperature and other factors, the problem of partial wear of compensation cords and compensation pulleys is widespread , Easily lead to compensation device stagnation or even compensation off the slot and then lead to breakage occurred. According to the analysis of Beijing Jingjiu line compensation pulley partial wear reasons and hazards, put forward solutions and countermeasures.