文献类型：期刊文献

中文题名：某型航空发动机燃油喷嘴三维尺寸检测及工艺改进

英文题名：Three Dimensional Size Detection and Process Improvement of Fuel Nozzle for Aeroengine

作者：卢燕 高兴勇

第一作者：卢燕

机构：[1]贵州理工学院工程训练中心,贵阳550007

第一机构：贵州理工学院工程训练中心

年份：2019

卷号：38

期号：4

起止页码：652-656

中文期刊名：机械科学与技术

外文期刊名：Mechanical Science and Technology for Aerospace Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：贵州理工学院推动军民融合产业发展专项项目(KJZX17-010)资助

语种：中文

中文关键词：航空发动机;燃油喷嘴;三维尺寸测量;工艺改进

外文关键词：aeroengine;fuel nozzle;three dimensional size detection;process improvement

摘要：燃油喷嘴的结构尺寸是影响其喷雾性能的重要因素,由于喷嘴结构复杂、体积小、尺寸精度要求高,传统的测量方法已经无法满足。采用X射线断层扫描复合式三坐标测量系统和Geometry Qualify三维造型软件对某型航空发动机燃油喷嘴展开三维尺寸测量,主要测量喷口-旋流器的内外部尺寸和分析副油路装配后的状态。经测量后发现喷口-旋流器内锥面尺寸超差严重,特别是内部喷口处外形尺寸失真;副油路装配后锥面还存在间隙。针对以上问题展开工艺改进工作,经工序集中和采用专用刀具后内锥面尺寸超差问题得到有效改善;通过手工研磨改善内锥面表面粗糙度和内锥面贴合不严的问题。
The structural size of the fuel nozzle is an important factor affecting its spray performance. Because of the complex structure, small volume and high dimensional accuracy of fuel nozzle, the conventional measurement methods can not meet. X-ray tomography and hybrid CMM (Coordinate Measuring Machine) and Geometry Qualify which is a three-dimensional modelling software were applied in the three-dimensional size detection of fuel nozzle for aeroengine. Firstly, the inner and outer dimensions of the nozzle-cyclone were measured. And then the state of the assembly of the sub-oil circuit was analyzed. After the measurement, it was found that the size of the inner cone surface of the nozzle-cyclone was seriously out of tolerance, especially the internal dimensions at the inner nozzle were distorted;there was also a gap between the cone surfaces after assembly of the sub-oil circuit. Aiming at the above problems, the process improvement work was carried out. After process centralization and the special tool had been adopted, the problem of over-dimension of the inner cone surface was effectively improved;the problem of surface roughness, lax fit of the inner cone surface was improved by manual grinding.