摘要
液体静压导轨的承载能力和油膜刚度是衡量其性能的两个技术指标。为满足高精密数控机床对静压导轨性能要求,基于局部压力损失理论提出了一种新型高液阻液体静压导轨。通过仿真分析了新型高液阻静压导轨封油面上的油槽位置、宽度和深度对油腔压力的影响。研究表明,在静压导轨的封油面上开设结构参数合理的油槽可提高液体静压导轨的油腔压力。实验结果验证了所设计的高液阻静压导轨能有效提高液体静压导轨的承载能力和刚度。
Carrying capacity and oil-film stiffness of hydrostatic guide-way are two important technical parameters. In order to meet the requirements of high precision CNC machine tool for hydrostatic guide-way, a new type hydrostatic guide-way with high liquid resistance was put forward based on local pressure loss theory. The simulations were done, which showed the effects of the position, width and depth of oil ring at resistive oil edges of the new hydrostatic guide-way on the oil chamber pressure. It is shown from the results that oil chamber pressures of hydrostatic guide-way may be enhanced significantly if the position, width and ate. It is verified that the carrying capacity and depth of the oil ring at resistive oil edges are approprioil-film stiffness of the new type hydrostatic guide-way with high liquid resistance are improved through the experiments.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2016年第24期3278-3282,共5页
China Mechanical Engineering
基金
陕西省教育厅自然科学专项(12JK0656)
陕西省教育厅重点实验室科学研究计划资助项目(13JS072)
陕西省自然科学研究项目(2014JM2-5067)
关键词
油膜刚度
承载能力
油槽
高液阻静压导轨
oil-film stiffness
carry capacity
oil ring
hydrostatic guide-way with high liquid resistance
