| PG6531B型燃气轮机减速箱齿轮断齿原因分析 |
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| 引用本文： | 陈峰,赵立凡,高建权,赵文权. PG6531B型燃气轮机减速箱齿轮断齿原因分析[J]. 理化检验(物理分册), 2003, 39(1): 53-56 |
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| 作者姓名： | 陈峰 赵立凡 高建权 赵文权 |
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| 作者单位： | 新疆独山子石化公司研究院设备研究所,新疆,833600 |
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| 摘 要： | 对PG6531B型燃气轮机减速箱齿轮断齿材料的化学成分、力学性能和显微组织进行了分析，并对齿轮断口作了宏微观观察。认为，减速箱齿轮失效的主要原因是齿轮表面脱碳，因而硬度不足，以及脉动偏载荷等造成的。提出了预防措施。
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| 关 键 词： | PG6531B型燃气轮机 减速箱 齿轮 断齿 疲劳失效 脉动偏载荷 失效分析 |
| 文章编号： | 1001-4012(2003)01-0053-04 |
| 修稿时间： | 2002-03-14 |
TOOTH-BREAKAGE ANALYSIS OF THE GEAR PAIR OF REDUCTION GEAR-BOX IN PG6531B GAS TURBINE |
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| CHENG Feng,ZHAO Li-fan,GAO Jian-quan,ZHAO Wen-quan. TOOTH-BREAKAGE ANALYSIS OF THE GEAR PAIR OF REDUCTION GEAR-BOX IN PG6531B GAS TURBINE[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2003, 39(1): 53-56 |
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| Authors: | CHENG Feng ZHAO Li-fan GAO Jian-quan ZHAO Wen-quan |
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| Abstract: | In this paper, tooth-breakage of the gear pair of reduction gear-box in PG6531 gas turbine-No.1 was analysis. Emphasis were put on chemical composition , mechanical properties, microstructure and metallographic examination, combined with SEM fractograph examination on failed gear pair. It was concluded that the failure was due to improper material selection, insufficient surface hardness, pulsed over-load and brittle inclusions which resulted in fatigue fracture. According to experiment results, measures to prevent such failure have been suggested. |
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| Keywords: | Tooth-breakage Fatigue fracture Pulsed over-load Failure analysis |
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