["제1心泵诱导轮断裂原因"

2018-10-15View Original

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",각位老师：近期我单位的一台50吨3/小时的离心泵诱导轮由根部断裂脱落，修复后使用一个月又断裂，不知是什么原因？请问各位有没有了解的。"

Reply #22018-10-15

"3. 一般这种情况与此处的易形成应力集中、材料的热处理有关。"

Reply #32018-10-15

"4. 能发一个断裂的截面么？介质密度是不是较大？一般来说断裂无非就是质量问题有一个应力集中没有一个诱导轮本身就有缺陷；修复了没有退应力处理一旦应力集中就会疲劳断裂"

Reply #42018-10-15

"5. 那个位置轴本来就不粗拧个叶轮螺母还算勉强如果不调整结构只在叶轮螺母位置加个诱导轮轴一旦有应力集中加上热处理太硬就会出问题建议诱导轮与轴配合采用键连接传递扭矩轴头加个牢固的叶轮螺母而不是两者合为一。"

Reply #52018-10-16

"6. 果然如我我诱导轮只是拧在轴头螺纹上那个轴头的螺纹空刀槽是个薄弱点设计和制造稍不得当就非常容易断裂这个诱导轮重量和不平衡力应该不小悬臂还这么长如果再考虑诱导轮与泵体入口的剐磨单单一个轴头纹是不能够满足强度要求的P。建议建议把轴伸长诱导轮与轴为正常轴孔键合键连接再在轴头加螺母锁紧这样设计是稳妥和可靠。:)"

Reply #62018-10-16

"7. 分析的不错谢谢指导！"

Reply #72018-10-16

"8. 断裂的部位在焊接的热影响区吧"

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["제1心泵诱导轮断裂原因"

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