摘要
轴承作为航空发动机主动力支撑传输部件,处于高转速、高载荷的工作环境中,受安装的稳定性影响很大,探索研究行之有效的轴承安装工艺,可以保证航空发动机的安全性、可靠性。本文以工程经验为依据,并结合理论计算,阐述了轴承压装和热装的工艺方法;在轴承安装后,通过对轴承的轴向定位以及轴承灵活性的检测判断轴承安装正确性的工艺手段;对于热装轴承,在轴承冷却过程中采用一种工艺预紧力对轴承施加持续轴向力,保证轴承安装精度的工艺技术。
Bearing as the active transmission support of aviation engines always works in high speed and high loads. The quality of bearing is directly affected by the stability of installation. Exploreing the installation process of bearing ensures the safety and reliability of aero-engine. Based on engineering experience, this paper studied the installation process. Combining with theoretical calculations, it elaborated the installation process of press-ift and heat-ift bearing. Through measuring axis-distance and testing agility of bearing, the correctness of bearing iftting was estimated. It put forward the pre-loaded bearing installation technology in cooling process during heat-ift bearing.The bearing installation process could improve the precision of bearing’s installation.
出处
《航空科学技术》
2014年第4期46-49,共4页
Aeronautical Science & Technology
关键词
航空发动机
轴承
安装工艺
压装法
热装法
轴向定位
装配游隙
轴承预紧
aero-engine
bearing
instal ation process
press-ift method
hot charging method
axial positioning
installation clearance
bearing pre-load
