摘要
为进行大涵道比航空发动机低压涡轮转子同心度的精确测量与控制,根据其多级耦合的结构特点和0.05 mm转子同心度的控制需求,开展了基于基准控制的低压涡轮转静子高精度装测一体化方法研究。通过基准调节方法实现测量基准与回转轴线重合,消除了定位误差;通过基准保持方法避免了装配操作对基准的影响,保证了测量基准姿态的一致性;结合质心对转子不平衡量的影响,搭建了专用测试系统,实现对低压涡轮转子同心度的装配结果管控。将该方法应用于发动机低压涡轮转静子装配,结果表明:实现了0.0125 mm转子跳动的精确测量,有效避免了低压涡轮转子初始不平衡量超差,减少了重复装分工作,提高了装配质量和效率,对多级部件同心度的高精度测量具有工程指导意义。
In order to accurately measure and control the concentricity of the LPT(Low-Pressure Turbine)rotor of a high bypass ratio engine.Research on high-precision integrated assembly and measurement methods for LPT stator and rotor based on datum control was conducted according to the structural characteristics of multistage coupling and the requirement of 0.05mm rotor concentricity.Positioning errors were eliminated by adjusting the measuring datum to coincide with the rotating axis.The influence of assembly opera⁃tions on the datum was avoided,and the attitude of the measuring datum was kept consistent by the datum holding technique.By analyzing the influence of centroid on rotor unbalance,a dedicated testing system was built to control the assembly results of concentricity of the LPT rotor.This method was successfully applied to the assembly of the LPT rotor and stator,and the results show that the proposed method can accurately measure the rotor runout of 0.0125mm,effectively avoid the out of tolerance of the LPT rotor initial unbalance,reduce repeti⁃tive assembly and disassembly work,and improve assembling quality and efficiency,providing engineering guidance for high-precision concentricity measurement of multi-stage component.
作者
牛孝霞
龙洋
卢文彪
NIU Xiao-xia;LONG Yang;LU Wen-biao(AECC Shenyang Engine Research Institute,Shenyang 110015,China)
出处
《航空发动机》
北大核心
2024年第3期122-127,共6页
Aeroengine
基金
航空动力基础研究项目资助。
关键词
低压涡轮转子同心度
高精度测量
装测一体化
基准控制
装配精度
航空发动机
concentricity of LPT rotor
high-precision measurement
integration of assembly and measurement
datum control
assembling precision
aeroengine
