CAJ | 학술논문

某型航空发动机为我国第三代战机主要动力装置，在试车后检查时发现，该发动机轴承保持架兜孔横梁存在异常磨损的偏磨现象。为摸清故障原因，对其尺寸按新品出厂标准进行了再次测量，找出了异常磨损是由于加工时拉刀刃口相邻面垂直度不合格，导致兜孔横梁与端面垂直度偏大引起了异常磨损。
모형항공발동궤위아국제삼대전궤주요동력장치，재시차후검사시발현，해발동궤축승보지가두공횡량존재이상마손적편마현상。위모청고장원인，대기척촌안신품출엄표준진행료재차측량，조출료이상마손시유우가공시랍도인구상린면수직도불합격，도치두공횡량여단면수직도편대인기료이상마손。
A certain type of aeroengine is the main power plant of the third-generation fighter in China.Through commissio-ning inspection, we find that the beams of engine bearing retainer were abrased abnormally.In order to find out the causes of the malfunction, its size was measured again according to the factory standards, and finally it is found that the abnormal abra-sion is due to the larger perpendicularity of the beam and the end face which is caused by disqualification of the perpendicular-ity between blade adjacent faces in the pulling process.