某型航空发动机燃油喷嘴三维尺寸检测及工艺改进
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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.
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.
引文
[1] 刘凯,张宝诚,宋文超,等.加工工艺对航空发动机燃油喷嘴性能的影响研究[J].航空发动机,2012,38(1):55-59Liu K, Zhang B C, Song W C, et al. Investigation of effect of machining quality on characteristics for aeroengine fuel injector[J]. Aeroengine, 2012,38(1):55-59 (in Chinese)
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[8] 郑世才.数字射线检测技术专题(一)——概述[J].无损检测,2012,34(1):49-51,60Zheng S C. Digital radiography I: a review of digital radiological methods[J]. Non-destructive Testing, 2012,34(1):49-51,60 (in Chinese)
[9] 董方旭,王从科,凡丽梅,等.X射线检测技术在复合材料检测中的应用与发展[J].无损检测,2016,38(2):67-72Dong F X, Wang C K, Fan L M, et al. The application and development of detection of composite materials by X-ray nondestructive testing techniques[J] Non-destructive Testing, 2016,38(2):67-72 (in Chinese)
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[11] 黄晓宇.离心式喷嘴制造误差对其雾化的影响研究[J].流体传动与控制,2014(5):28-31Huang X Y. Study of the swirl nozzle spray characteristic influence by manufacturing error[J]. Fluid Power Transmission and Control, 2014(5):28-31 (in Chinese)
[12] 伍权,徐卫平,白文斌.燃油喷嘴制造技术的改进[J].机电技术,2008,31(1):47-49Wu Q, Xu W P, Bai W B. Improvement of fuel nozzle manufacturing technology[J]. Mechanical & Electrical Technology, 2008,31(1):47-49 (in Chinese)
[13] 常永红,王超,冯振,等.大型薄壁角接触球轴承铝合金保持架加工工艺改进[J].轴承,2018(1):15-16Chang Y H, Wang C, Feng Z, et al. Improvement on machining technology for aluminum alloy cages of large-scale thin-walled angular contact ball bearings[J]. Bearing, 2018(1):15-16 (in Chinese)
[14] 王继群.薄壁类零件数控加工工艺改进分析研究[J].北京工业职业技术学院学报,2013,12(3):34-37Wang J Q. Improvement of NC machining process of thin-walled parts[J]. Journal of Beijing Polytechnic College, 2013,12(3):34-37 (in Chinese)
[15] 赵广军,王连义,李方军,等.某产品深孔壳体加工工艺技术改进[J].精密成形工程,2014,6(1):43-48Zhao G J, Wang L Y, Li F J, et al. Improvement on processing technology of a deep-hole casing product[J]. Journal of Netshape Forming Engineering, 2014,6(1):43-48 (in Chinese)
[2] 郑学著,黄袖清,陈艳芳,等.燃油喷嘴主要性能参数的影响因素及调试技术[J].航空制造技术,2014(22):155-157,160Zheng X Z, Huang X Q, Chen Y F, et al. Influencing factor and debugging technology of major performance parameter for fuel nozzle[J]. Aeronautical Manufacturing Technology, 2014(22):155-157,160 (in Chinese)
[3] 邱伟,夏丽敏,孙辉,等.某型航空发动机燃油喷嘴喷雾锥角调试试验研究[J].航空制造技术,2016(20):58-62Qiu W, Xia L M, Sun H, et al. Experiment study of an aero-engine fuel nozzle spay angle commissioning[J]. Aeronautical Manufacturing Technology, 2016(20):58-62 (in Chinese)
[4] 伍文锋,吴建华,钟柳花,等.航空发动机燃油喷嘴雾化角度测量研究[J].航空发动机,2017,43(5):69-73Wu W F, Wu J H, Zhong L H, et al. Research on Aeroengine fuel nozzle spray angle masurement[J]. Aeroengine, 2017,43(5):69-73 (in Chinese)
[5] Li J Y, Liu W N, Yang L F, et al. The development of nozzle micro-hole abrasive flow machining equipment[J]. Applied Mechanics and Materials, 2011, 44-47:251-255
[6] Han Z Y, Parrish S E, Farrell P V, et al. Modeling atomization processes of pressure-swirl hollow-cone fuel spray[J]. Atomization and Sprays, 1997,7(6):663-684
[7] 梁晋,尤威,王晓光,等.三维复杂尺寸检测的研究与应用[J].中国工程机械学报,2017,15(1):67-71Liang J, You W, Wang X G, et al. The research and application of three dimensional complex size detection[J]. Chinese Journal of Construction Machinery, 2017,15(1):67-71 (in Chinese)
[8] 郑世才.数字射线检测技术专题(一)——概述[J].无损检测,2012,34(1):49-51,60Zheng S C. Digital radiography I: a review of digital radiological methods[J]. Non-destructive Testing, 2012,34(1):49-51,60 (in Chinese)
[9] 董方旭,王从科,凡丽梅,等.X射线检测技术在复合材料检测中的应用与发展[J].无损检测,2016,38(2):67-72Dong F X, Wang C K, Fan L M, et al. The application and development of detection of composite materials by X-ray nondestructive testing techniques[J] Non-destructive Testing, 2016,38(2):67-72 (in Chinese)
[10] 杰魔(上海)软件有限公司.三维检测软件Geomagic Qualify[J].航空制造技术,2009(20):99Geomagic (Shanghai) Software Co., Ltd. 3D detection software of Geomagic Qualify[J]. Aeronautical Manufacturing Technology, 2009(20):99 (in Chinese)
[11] 黄晓宇.离心式喷嘴制造误差对其雾化的影响研究[J].流体传动与控制,2014(5):28-31Huang X Y. Study of the swirl nozzle spray characteristic influence by manufacturing error[J]. Fluid Power Transmission and Control, 2014(5):28-31 (in Chinese)
[12] 伍权,徐卫平,白文斌.燃油喷嘴制造技术的改进[J].机电技术,2008,31(1):47-49Wu Q, Xu W P, Bai W B. Improvement of fuel nozzle manufacturing technology[J]. Mechanical & Electrical Technology, 2008,31(1):47-49 (in Chinese)
[13] 常永红,王超,冯振,等.大型薄壁角接触球轴承铝合金保持架加工工艺改进[J].轴承,2018(1):15-16Chang Y H, Wang C, Feng Z, et al. Improvement on machining technology for aluminum alloy cages of large-scale thin-walled angular contact ball bearings[J]. Bearing, 2018(1):15-16 (in Chinese)
[14] 王继群.薄壁类零件数控加工工艺改进分析研究[J].北京工业职业技术学院学报,2013,12(3):34-37Wang J Q. Improvement of NC machining process of thin-walled parts[J]. Journal of Beijing Polytechnic College, 2013,12(3):34-37 (in Chinese)
[15] 赵广军,王连义,李方军,等.某产品深孔壳体加工工艺技术改进[J].精密成形工程,2014,6(1):43-48Zhao G J, Wang L Y, Li F J, et al. Improvement on processing technology of a deep-hole casing product[J]. Journal of Netshape Forming Engineering, 2014,6(1):43-48 (in Chinese)
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