| 活塞式压缩机联轴器连接螺栓断裂原因分析 |
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| 引用本文： | 石强,王威强,汤杰,孔浩源.活塞式压缩机联轴器连接螺栓断裂原因分析[J].理化检验(物理分册),2012(3):203-205. |
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| 作者姓名： | 石强 王威强 汤杰 孔浩源 |
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| 作者单位： | 山东大学机械工程学院;山东省特种设备安全工程技术研究中心;山东大学特种设备安全保障与评价研究中心 |
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| 摘 要： | 某型号活塞式压缩机联轴器的连接螺栓在停车维修拆卸时发现断裂。通过化学成分分析、硬度测试、金相检验、断口分析及能谱分析对断裂原因进行了分析。结果表明：螺栓根部存在结构不连续的退刀槽，导致螺栓应力集中产生初始裂纹，在长期服役后发生疲劳断裂。
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| 关 键 词： | 压缩机 连接螺栓 疲劳 应力集中 |
Analysis on Fracture Reason of Bolt on Piston Compressor Coupling |
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| SHI Qiang,WANG Wei-qiang,TANG Jie,KONG Hao-yuan.Analysis on Fracture Reason of Bolt on Piston Compressor Coupling[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2012(3):203-205. |
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| Authors: | SHI Qiang WANG Wei-qiang TANG Jie KONG Hao-yuan |
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| Affiliation: | 1,2,3(1.School of Mechanical Engineering,Shandong University,Jinan 250061,China; 2.Engineering and Technology Research Center for Special Equipment Safety of Shandong Province,Jinan 250061,China; 3.Research Center of Safety Guarantee and Assessment to Special Equipment,Shandong University,Jinan 250061,China) |
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| Abstract: | A bolt on the piston compressor coupling was broken during their maintenance period.By means of chemical composition analysis,hardness testing,metallographic examination,fracture and energy spectrum analysis,the fracture reason was analyzed.The results showed that there was an undercut on the bolt root,which led to stress concentration to create initial crack.All of these led to bolt fatigue fracture after long-serving. |
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| Keywords: | compressor connecting bolt fatigue stress concentration |
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