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椭圆凹坑布置对钻头滑动轴承减磨性能的影响

罗敏敏 钟林 王国荣 廖文玲 魏刚

罗敏敏, 钟林, 王国荣, 廖文玲, 魏刚. 椭圆凹坑布置对钻头滑动轴承减磨性能的影响[J]. 机械科学与技术, 2022, 41(2): 220-226. doi: 10.13433/j.cnki.1003-8728.20200338
引用本文: 罗敏敏, 钟林, 王国荣, 廖文玲, 魏刚. 椭圆凹坑布置对钻头滑动轴承减磨性能的影响[J]. 机械科学与技术, 2022, 41(2): 220-226. doi: 10.13433/j.cnki.1003-8728.20200338
LUO Minmin, ZHONG Lin, WANG Guorong, LIAO Wenling, WEI Gang. Effect of Elliptical Pit Arrangement on Abrasion Reduction Performance of Sliding Bearing[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(2): 220-226. doi: 10.13433/j.cnki.1003-8728.20200338
Citation: LUO Minmin, ZHONG Lin, WANG Guorong, LIAO Wenling, WEI Gang. Effect of Elliptical Pit Arrangement on Abrasion Reduction Performance of Sliding Bearing[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(2): 220-226. doi: 10.13433/j.cnki.1003-8728.20200338

椭圆凹坑布置对钻头滑动轴承减磨性能的影响

doi: 10.13433/j.cnki.1003-8728.20200338
基金项目: 

国家自然科学基金项目 51775463

成都市国际合作项目 2019-GH02-0055-HZ

详细信息
    作者简介:

    罗敏敏(1995-), 硕士研究生, 研究方向为仿生表面织构及其在油气装备中的应用, 2290437892@qq.com

    通讯作者:

    钟林, 实验师, 硕士生导师, zhonglin858296@163.com

  • 中图分类号: TE921.1

Effect of Elliptical Pit Arrangement on Abrasion Reduction Performance of Sliding Bearing

  • 摘要: 利用纳秒激光打标机在钻头滑动轴承销-盘单元试样表面加工椭圆凹坑织构, 其长轴为600 μm, 深度20 μm保持不变, 短轴200~500 μm范围。采用MDW-1型立式万能摩擦磨损试验机的销-盘摩擦副开展试验载荷为435 N、速度为0.29 m/s模拟工况下的牙轮钻头滑动轴承单元摩擦学试验, 研究椭圆凹坑织构分别加工于滑动轴承轴径和轴套表面时对钻头滑动轴承摩擦学性能的影响。结果表明: 椭圆凹坑同时交错分布于销、盘试样表面的润滑减磨效果最优, 椭圆凹坑同时平行分布于销、盘试样表面的润滑减磨效果最差。
  • 图  1  销-盘摩擦副

    图  2  轴承不同表面的椭圆凹坑布置方式

    图  3  椭圆凹坑位于销、盘表面的三维形貌

    图  4  椭圆凹坑布置对平均摩擦因数的影响

    图  5  椭圆凹坑布置对磨损量的影响

    图  6  椭圆凹坑不同布置条件下销表面EDS分析

    图  7  盘试样表面磨痕

    图  8  椭圆凹坑不同布置时盘试样表面三维形貌图

    图  9  椭圆凹坑短轴尺寸对摩擦因数的影响规律

    图  10  不同椭圆凹坑尺寸对盘表面刮切影响示意图

    表  1  20CrNiMo和铍青铜材料物理性能

    对象 材料 弹性模量/GPa 泊松比 抗拉强度/MPa 密度/(g·cm-3)
    20CrNiMo 127.5 0.295 1 500 7.85
    铍青铜 206 0.40 1 200 8.3
    下载: 导出CSV

    表  2  不同条件下销-盘间所需的加载力

    钻压/t 径向载荷/kN 加载力/N
    1.5 4.2 76
    6.0 16.8 297
    9.0 25.2 435
    10.5 29.4 514
    12.0 33.5 600
    13.5 37.7 678
    下载: 导出CSV

    表  3  椭圆凹坑布置及参数

    分组 区域 面积比/% 长轴a/μm 短轴b/μm 深度h/μm 凹坑边缘硬度
    A 仅布置于销 20 600 200、300、400、500 20 56~58HRC
    B 仅布置于盘 20 600 200、300、400、500 20 38~43HRC
    C 销、盘交错分布 20 600 200、300、400、500 20 -
    D 销、盘平行分布 20 600 200、300、400、500 20 -
    下载: 导出CSV
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  • 收稿日期:  2020-07-20
  • 刊出日期:  2022-02-25

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