矿用自卸卡车发电机集电环故障分析  

Fault analysis of generator collecting ring of mining dump truck

作　　者：蔡晓 王鑫 丁新 党亚男 张江涛 张晓强 李庐 CAI Xiao;WANG Xin;DING Xin;DANG Yanan;ZHANG Jiangtao;ZHANG Xiaoqiang;LI Lu(CRRC Yongji Electric Co.,Ltd.,Yongji 044502,Shanxi,China)

机构地区：[1]中车永济电机有限公司,山西永济044502

出　　处：《矿山机械》2024年第1期15-19,共5页Mining & Processing Equipment

摘　　要：集电环与电刷间存在径向滑动摩擦和电连接关系,是发电机励磁系统与转子连接的关键部件。因此,集电环良好的工作状态是保证发电机正常运行的关键因素,其结构的可靠性直接决定矿用卡车的出勤率。针对交流发电机GTA22集电环开路问题,从结构、材料、工艺等方面进行分析,对集电环装配进行优化改进及工艺验证。改进后,发电机因集电环开路产生的返厂率由15%降至2%,并通过运行验证,此结构适用于GTA同系列发电机。There were radial sliding friction and electrical connection between the collecting ring and the brush,and the collecting ring was the key component for the connection of the generator excitation system and the rotor.Therefore,the good working state of the collecting ring was the key factor to ensure the normal operation of the generator,and the reliability of its structure directly determined the attendance rate of the mining truck.Aiming at the open circuit problem of the collecting ring of AC generator GTA22,the structure,material and process were analyzed.Then,the assembly of the collecting ring was optimized and improved,and the process was verified.After the improvement,the return rate of the generator due to the open circuit of the collecting ring was reduced from 15%to 2%.Through the operation verification,this structure was suitable for the same series ofGTAgenerators.

关 键 词：发电机 矿用卡车 集电环开路 结构改进 

分 类 号：TD57[矿业工程—矿山机电]