航空发动机中央传动杆磨损故障分析与研究  

Investigation on Radial Driving Shaft Failure for an Aero-Engine

作　　者：郭梅[1,2] 陈聪慧[1,2] 战鹏[1,2] 曹璨[1] 李博[1,2] 

机构地区：[1]中国航空工业集团公司沈阳发动机设计研究所,沈阳110015 [2]中国航空工业集团公司航空发动机动力传输航空科技重点实验室,沈阳110015

出　　处：《燃气涡轮试验与研究》2013年第2期54-58,共5页Gas Turbine Experiment and Research

摘　　要：针对某型发动机试车中反复出现中央传动杆中间轴承滚子和保持架脱落、内圈严重磨损故障,进行结构合理性分析、振动特性计算、实物测量、产品质量复查及相关试验测量,确定影响传动杆正常工作的各项因素,找出了传动杆破坏原因。采取传动杆轴径优化设计、改善供油、提高加工质量、改进安装形式等多项措施,解决磨损故障。改进后的发动机试车验证表明,传动杆工作稳定,效果良好。最后,总结出三支点细长中央传动杆设计的关键技术,可为同类中央传动杆设计提供借鉴。For the driving shaft encountering the roller and retainer breaking off and inner spacers wearing out during the engine tests, the structure analyses, vibration calculation, component measurement, quality assessment and related tests were carried out. Finally the faetors effecting the driving shaft operation and the reasons of failure were defined. Several measures including shaft diameter optimization, increasing oil supply, improving manufacture quality and installation form were taken to clear up the failures. After im- provement, the testing results showed that the driving shaft worked steadily and the effect was good. At last, the key technology of radial driving shaft with three supporting points is summarized, which has a great help for the driving shaft design.

关 键 词：航空发动机 中央传动杆 中间轴承 临界转速 故障分析 

分 类 号：V233.1[航空宇航科学与技术—航空宇航推进理论与工程]