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文章针对某型航空发动机桨轴机构的重要零件锁紧垫圈断裂故障,从桨轴与螺母联接结构和故障模式,研究了锁紧垫圈的断裂性质和原因,提出了改进螺母结构、优化装配工艺的针对性改进措施,验证了改进措施的有效性,对于机械断裂失效分析具有较强的指导意义与参考价值。
In this paper, aiming at the breakage of key washers of aeroengine propeller shaft mechanism, the fracture properties and causes of lock washers are studied from the structure of the propeller shaft and nut and the failure mode. The structure of the nut was improved and the assembly process was optimized Targeted improvement measures to verify the effectiveness of the improvement measures for the mechanical failure analysis with strong guidance and reference value.