【摘要】 对产生裂纹的填料盘进行了失效分析,通过拉梅公式和有限元分析软件对填料盘简化模型进行了受力分析。结果表明:材料成分和显微组织均符合要求;裂纹起源于输油孔的侧壁;填料盘的失效模式为疲劳失效,内压在填料盘内部输油孔上产生的应力集中导致了填料盘的疲劳失效。适当增加输油孔到填料盘内环的距离可以预防裂纹的产生。更多还原

【Abstract】 Base on failure analysis and stress distribution analysis of the stuffing box using the Lame Formula and software ANSYS in predigested model,it is found that the composition of the material accorded with the requirement for stuffing box,and the microstructure with few impurity was qualified.The fracture of stuffing box was caused by fatigue,which resulted from the maximum stress concentration on the centripetal border of the oil hole.Increasing the distance from oil hole to inner annulus of the stuffing box can prevent the fatigue.更多还原