中国机械工程

• 机械基础工程 • 上一篇    下一篇

二层沟槽织构对机床导轨表面润滑特性的影响

张东亚1,2;赵飞飞1,2;高峰1,2;段继豪1,2   

  1. 1.西安理工大学数控机床及机械制造装备集成教育部重点实验室,西安,710048
    2.西安理工大学机械制造装备陕西省重点实验室,西安,710048
  • 出版日期:2018-07-25 发布日期:2018-07-27
  • 基金资助:
    国家自然科学基金资助项目(51605381);
    陕西省自然科学基础研究计划资助项目(2017JQ5101);
    陕西省教育厅2017年重点科学研究计划(重点实验室)资助项目(17JS095)
    National Natural Science Foundation of China (No. 51605381)

Effects of Double-layer Groove Texture on Lubrication Performance of Machine Tool Slideway Surfaces

ZHANG Dongya1,2;ZHAO Feifei1,2;GAO Feng1,2;DUAN Jihao1,2   

  1. 1.Key Lab of NC Machine Tools and Integrated Manufacturing Equipment of the Ministry of Education,Xi'an University of Technology,Xi'an,710048
    2.Key Lab of Manufacturing Equipment of Shaanxi Province,Xi'an University of Technology,Xi'an,710048
  • Online:2018-07-25 Published:2018-07-27
  • Supported by:
    National Natural Science Foundation of China (No. 51605381)

摘要: 通过构建二层沟槽织构模型,仿真研究沟槽织构表面的流体动力效应。结果表明:沟槽容积相同时,与单层沟槽相比,二层沟槽的平均油膜压力可以达到单层沟槽的2.31倍;保持二层沟槽的量纲一总深度[β]1、第一层沟槽量纲一宽度[α]1不变时,随着第二层量纲一深度[β]2的增大,平均油膜压力先增大后减小,[β]2为4.4时,平均油膜压力达到最大值;第二层沟槽的量纲一宽度[α]2从0.25增大到0.45时,沟槽内的旋涡区也随之增大,平均油膜压力逐渐减小。

关键词: 表面织构, 流体动力效应, 机床导轨, 油膜压力

Abstract: Hydrodynamic effects of groove texture surface were studied by designing a double-layer groove texture model.The results show that when the volumes of single-layer and double-layer groove texture are the same,average oil film pressure of the double-layer groove texture is 2.31 times of that of the single-layer groove texture.Setting the dimensionless depth β1 and the first layer dimensionless width α1 of the double-layer groove texture as a constant,the average oil film pressures increases at first and then decreases as the increasing of the second layer dimensionless depth β2.The maximal value of the average oil film pressure may be obtained at the β2  equals to 4.4.When the dimensionless width α2 of the second-layer groove increases from 0.25 to 0.45,the vortex area in the groove also increases,and the average oil film pressures decreases gradually.

Key words: surface texture, hydrodynamic effect, machine tool slideway, film pressure

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