| 凸轮轴齿轮拧紧螺栓断裂分析 |
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| 引用本文： | 王春雁,范创,王冬雁,纪静. 凸轮轴齿轮拧紧螺栓断裂分析[J]. 中国机械, 2014, 0(10): 102-103 |
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| 作者姓名： | 王春雁 范创 王冬雁 纪静 |
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| 作者单位： | 河北华北柴油机有限责任公司质量保证处 |
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| 摘 要： | 通过宏观检查、理化检验、装配螺栓拧紧力矩的计算及调查，确定了某型发动机凸轮轴齿轮拧紧螺栓的断裂原因。结果表明：螺栓装配时拧紧力矩过大，远远超过螺栓最大许用拧紧力矩，使螺栓受到了剪切破坏，发动机高速运转下进而受到振动、拉伸等应力作用下最终导致断裂。
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| 关 键 词： | 凸轮轴齿轮拧紧螺栓 拧紧力矩 剪切破坏 |
The Camshaft Gear Screw Down Zhe Bolt Fracture Analysis |
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| Abstract: | Through examination, physical and chemical proerties testing, mounting bolt tightening torque calculation and investingation and so on. The results show that, when bolt tightening torque is too big , far exceed the maximum allowable torque of the bolt, the bolt shear failure, engine under high speed and uibration by tensile stress and eventually lead to frature. |
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| Keywords: | the camshsft gear screw down the bolt： tightening torque： shear failure |
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