成形砂轮磨削齿轮表面形貌特征及摩擦学特性分析  

Analysis of surface morphology and tribological characteristics of gear tooth machined by form grinding

作　　者：王龙 田欣利[2] 唐修检[2] 刘谦 姚巨坤[2] 李德发 WANG Long;TIAN Xinli;TANG Xiujian;LIU Qian;YAO Jukim;LI Defa(Rocket Force University of Engineering,Xi’an 710000, CHN;National Defense Key Laboratory for Remanufacturing Technology, Academy of Army Armored Forces, Beijing 100072,CHN;Frist Student Group of Changping Nocommissioned Officer Academy, University of Aerospace Engineering, Beijing 100072, CHN)

机构地区：[1]火箭军工程大学,陕西西安710000 [2]陆军装甲兵学院装备再制造技术国防科技重点实验室,北京100072 [3]航天工程大学昌平士官学校学员一大队,北京100072

出　　处：《制造技术与机床》2019年第1期49-53,共5页Manufacturing Technology & Machine Tool

基　　金：国家科技重大专项(2015ZX04003006)

摘　　要：为了揭示成形砂轮磨削齿轮表面形貌的分布特征及其对摩擦学特性的影响机制,开展了磨削表面不同角度方向的纹理特征、粗糙度评定参数、摩擦磨损性能的对比分析试验。研究表明:随着角度θ在0°～90°增长时,表面形貌的粗糙度微观不平高度、沟纹深度、均匀性与规则性均先逐渐增大,直至45°时表面纹理最为复杂且表面粗糙程度最大,然后又略有所改善;凸峰形态尖峭程度先减弱,直至15°纹理方向达到最小,然后再逐渐增大;粗糙度微观不平间距逐渐减小。在流体润滑摩擦状态下,微观不平高度特性Ra越大,动压润滑效应减弱,边界润滑效应越显著。摩擦磨损机制是塑性变形与微切削作用,以及磨粒磨损、粘着磨损、疲劳磨损等的耦合作用。In order to reveal the distribution characteristics of the gear teeth surface morphology machined using form grinding wheel and its influence on the tribological properties,texture analysis,roughness evaluation parameters,friction and wear properties of grinding surface in different texture directions were carried out. It shows that with the increase of the angle θ between 0 ° and 90 °,the microscopic inequality height of roughness,uniformity and the regularity of grinding surface are firstly gradually deteriorated,and then slightly improved. The most complicated surface texture and the largest surface roughness exist where the angle is 45°. The peak shape of the crest is firstly weakened,until the 15° texture direction is minimized,and then gradually increases. The microcosmic inequality distance of roughness gradually decreases. In the fluid lubrication friction state,the greater the roughness,the weakened the dynamic pressure lubrication effect,but the boundary lubrication effect is more remarkable. Friction and wear mechanism is the plastic deformation and micro-cutting effect,as well as abrasive wear,adhesive wear,fatigue wear and other coupling effect.

关 键 词：表面形貌特征 摩擦学特性 成形磨削 纹理方向 

分 类 号：TG84[金属学及工艺—公差测量技术] TH117[机械工程—机械设计及理论]