仿生齿轮抗接触疲劳性能的试验研究  

Experimental study on contact fatigue resistance of bionic gears

作　　者：呼咏[1,2] 张永胜[3] 张志辉[2] 韩志武[2] 任露泉[2] 

机构地区：[1]吉林大学机械科学与工程学院,吉林长春130022 [2]吉林大学工程仿生教育部重点实验室,吉林长春130022 [3]泛亚汽车技术中心有限公司试验认证部,上海201201

出　　处：《哈尔滨工程大学学报》2015年第3期379-383,共5页Journal of Harbin Engineering University

基　　金：国家自然科学基金资助项目(51005097)

摘　　要：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。In order to improve the contact fatigue resistance of gears,based on the biological coupling wear-resisting principle,nine kinds of stripy bionic surface morphologies and soft and hard alternated structure were designed by imitating the surface of intertidal shellfish. Bionic cylindrical rollers were fabricated using micro-area processing technology by laser texturing machine. The transmission of two gears was simulated by rolling of two rollers. The optimum technological parameters and morphological data were obtained by orthogonal experiment and its optimization method,and then the bionic gears with good environmental adaptability and practicability were fabricated. The regular gears and bionic gears are tested on the gear tester,respectively. The results indicated that the bionic gear shows better contact fatigue resistance than the regular gears by 20%. The comprehensive improvement of surface lubrication conditions,effective collection of chips,increase of heat dissipation area,and crack propagation block is the main reason for enhancement of the performance of bionic gear contact fatigue resistance.

关 键 词：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 

分 类 号：TB17[生物学—生物工程]