[1]王星龙,陶宗杰,杨泊,等.表面织构对高速插针机构导轨的表面摩擦性能影响[J].郑州大学学报(工学版),2024,45(01):40-46.[doi:10.13705/j.issn.1671-6833.2024.01.006]
　WANG Xinglong,TAO Zongjie,YANG Boxin,et al.Influence of Surface Texture of Guide Rail on Surface Friction in High Speed Pin Insertion Mechanism[J].Journal of Zhengzhou University (Engineering Science),2024,45(01):40-46.[doi:10.13705/j.issn.1671-6833.2024.01.006]
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表面织构对高速插针机构导轨的表面摩擦性能影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
45
期数:
2024年01期
页码:
40-46
栏目:
出版日期:
2024-01-19

文章信息/Info

Title:
Influence of Surface Texture of Guide Rail on Surface Friction in High Speed Pin Insertion Mechanism
作者:
王星龙; 陶宗杰; 杨泊; 安琦
1. 华东理工大学 机械与动力工程学院,上海 200237;2. 泰科电子(上海)有限公司,上海 200030
Author(s):
WANG Xinglong;  TAO Zongjie;  YANG Boxin;  AN Qi
1. School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. TE Connectivity, Shanghai 200030, China
关键词:
插针机构;  导轨;  表面织构;  混合摩擦;  表面粗糙度
Keywords:
pin insertion mechanism;  guide rail;  surface texture;  mixed friction;  surface roughness
DOI:
10.13705/j.issn.1671-6833.2024.01.006
文献标志码:
A
摘要:
以插针机中具有表面织构的导轨摩擦副为研究对象,考虑表面粗糙度、载荷波动、速度变化、时变油膜挤压 效应等因素,分析表面织构对其摩擦性能的影响。 应用计算机模拟生成具有自相关函数的粗糙表面,将 Greenwood 和 Tipp 建立的粗糙度接触模型以及 Patir 和 Cheng 修正后的平均油膜流体润滑模型耦合构建混合摩擦模型,通过 MATLAB 软件计算出凸轮的 1 个转动周期内的每个时刻的油膜压力、微凸体压力、油膜厚度。 分析了混合润滑阶 段摩擦副的油膜压力分布特点,以及织构数量、表面粗糙度、表面织构尺寸参数对摩擦副润滑特性的影响。 结果表 明:当底座摩擦副粗糙度方差增大时,油膜压力随之减小;微型凹坑半径取 60 μm,面积占有比取 40%,微型凹坑深 度取 5 μm 时摩擦副取得最优润滑效果。
Abstract:
Taking the rail friction pair with surface texture in the pin insertion machine as the research object, the influence of surface texture on its friction performance was studied with the consideration of surface roughness, load fluctuation, speed fluctuation, and time-varying oil film extrusion effect. A rough surface with autocorrelation function was generated by computer simulation, and the mixed friction model was constructed by coupling the roughness contact model established by Greenwood and Tipp and the average oil film fluid lubrication model modified by Patir and Cheng. The oil film pressure, asperity contact pressure and oil film thickness at each moment in a cam rotation cycle were calculated by MATLAB software. The characteristics of the oil film pressure distribution of the friction pair in the mixed lubrication stage were analyzed, and the effects of texture quantity, surface roughness, and surface texture size parameters on the lubrication characteristics of the friction pair were obtained. The results showed that when the variance of the roughness of the friction pair of the base increased, the oil film pressure decreased. When the radius of the micro-dimples was 60 μm, the area occupation ratio was 40%, and the depth of the microdimples was 5 μm, the friction pair could achieve the best lubrication effect

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更新日期/Last Update: 2024-01-24