直升机尾桨毂低温下轴向铰转动困难问题分析与处理  

The Difficulties in Axial Hinge Rotation Problem Analysis and Solution of Helicopter Tail Rotor Hub

作　　者：王正峰 范名忠 雷少保 WANG Zhengfeng;FAN Mingzhong;LEI Shaobao(The Military Representative’s Office in Changsha,Changsha 410000,China;China Helicopter Research and Development Institute,Jingdezhen 333001,China)

机构地区：[1]海装驻长沙地区军事代表室,湖南长沙410000 [2]中国直升机设计研究所,江西景德镇333001

出　　处：《直升机技术》2024年第3期49-52,共4页Helicopter Technique

摘　　要：直升机尾桨毂在极端低温环境下(环境温度-44.5℃)地面调试过程中发生了轴向铰转动困难故障。为此,对故障现象、结构尺寸设计、温度对零件尺寸的影响等进行了分析和充分的试验,制定并采取相应措施。这些措施经地面试验和装机试飞验证,取得了很好的实施效果。During ground debugging in an extremely low temperature environment(-44.5℃),the tail rotor hub of helicopter experienced axial hinge rotation difficulties.In this paper,the design and manufacturing part analyzed and conducted sufficient experiments on fault phenomena,structural dimension design,and the impact of temperature on part dimensions,and took corresponding measures.These measures had been validated through ground tests and installation flight tests and had achieved good implementation results.

关 键 词：直升机 尾桨毂 轴向铰 转动困难 

分 类 号：V233.12[航空宇航科学与技术—航空宇航推进理论与工程]