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仿生齿轮抗接触疲劳性能的试验研究

DOI: 10.3969/j.issn.1006-7043.201311035

Keywords: 仿生齿轮, 接触疲劳, 激光淬火, 工程仿生, 正交试验, 啮合传动, 仿生滚子试件

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Abstract:

为了提高传动齿轮的抗接触疲劳性能,依据生物耦合耐磨原理,模仿潮间带贝类体表设计了9种条纹状组织非光滑仿生表面形态和软硬相间结构,利用激光微区处理技术进行了仿生抗接触疲劳圆柱滚子试件的制备.利用仿生圆柱滚子试件对滚模拟了齿轮副的啮合传动,通过正交试验及其优化方法优选出适合的仿生表面制备工艺参数和形态分布参数,从而制备出具有良好环境适应性和实用性的仿生齿轮.经啮合传动试验表明,仿生齿轮的抗接触疲劳性能较普通齿轮提高20%以上,表面润滑条件改善、碎屑有效收集、散热面积增大、裂纹传播阻断等综合作用是仿生齿轮抗接触疲劳性能提高的主要原因.

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