CrNiMo齿轮轴断裂原因分析及改进包装工程.PDF

第38 卷 第7 期 包 装 工 程 2017 年4 月 PACKAGING ENGINEERING ·39 · 17CrNiMo6 齿轮轴断裂原因分析及改进 李妍缘 1 ，赵兴明 2 ，赵东辉 1 （1.郑州电力高等专科学校，郑州 450004 ；2.郑州电力机械厂，郑州 450000 ） 摘要： 目的 研究常用的减速机高速工作中，材料为 17CrNiMo6 齿轮轴断齿现象的原因以及改进措施。 方法 通过化学成分分析、硬度检测、显微组织分析等方法，研究分析 17CrNiMo6 齿轮轴断齿现象的原 因，并根据产生断齿的原因提出改进措施。结果 17CrNiMo6 齿轮轴断裂为疲劳断裂，断齿的主要因素 为调制热处理工艺不当、非金属杂物超标产生应力集中现象等。结论 通过改进热处理工艺、优化结构 设计、提高加工精度等措施可改善 17CrNiMo6 齿轮轴的断齿现象。 关键词： 17CrNiMo6；断裂；应力集中；包装设备 中图分类号：TB486 文献标识码：A 文章编号： 1001-3563(2017)07-0039-04 Cause for Fracture of 17CrNiMo6 Gear Shaft and its Improvement 1 2 1 LI Yan -yuan , ZHAO Xing-ming , ZHAO Dong-hui (1.Zhengzhou Electric Power College, Zhengzhou 450004, China; 2.Zhengzhou Electric Power Machinery Factory, Zhengzhou 450000, China) ABSTRACT: The work aims to study the causes for the tooth breaking of 17CrNiMo6 gear shaft in the high-speed work of the commonly used reducer and the improvement measures. The causes for the tooth breaking of 17CrNiMo6 gear shaft were studied and analyzed by means of chemical composition analysis, hardness test, microstructure analysis and other methods. The improvement measures were proposed according to the causes for tooth breaking. The results showed that the factors such as the fatigue fracture, the improper preparation of heat treatment process and the stress concentration caused by nonmetallic debris that exceeded the standard were the main causes for the tooth breaking of 17CrNiMo6 gear shaft. By improving the heat treatment process, optimizing the structure design, improving the processing accuracy and other measures, the tooth breaking of 17CrNiMo6 gear shaft can