【作者】 梁瑛娜； 高殿荣； 隋燃；

【Author】 LIANG Ying-na;GAO Dian-rong;SUI Ran;College of Mechanical Engineering, Yanshan University;Liren College, Yanshan University;

【机构】 燕山大学机械工程学院； 燕山大学里仁学院；

【摘要】 通过建立具有锥坑分布的高压海水轴向柱塞泵滑靴副动压润滑模型,采用动网格技术分析了凹坑形状、直径、径深比及径向间距对其动压承载特性的影响规律。研究结果表明:锥坑处因动压效应可产生局部高压,分隔了光滑靴底下大面积低压区,承载力大幅提升;三种不同锥坑产生的承载力均随凹坑直径的增大先增大后减小,极值出现在d=1~1.1 mm处;承载力随凹坑径深比的增大基本呈下降趋势;在凹坑面积率不变的前提下,承载力随凹坑径向间距的增大而增大;相比其他两种锥坑,扇锥坑承载特性表现最为优异。更多还原

【Abstract】 A hydrodynamic lubrication model of slipper/swash-plate pair with non-smooth concave surface of high pressure seawater axial piston pump is established. The dynamic mesh technology is employed to analyse the effect of concave shape, diameter, diameter to depth ratio and radial spacing on the load carrying characteristic. The research results show that high pressure is produced at and around the conical pits locally due to the dynamic effect, which can separate the large low pressure area under smooth slipper and increase the load carrying capacity significantly; the load carrying capacity of three different conical pits all increase first and then decrease with the increase of concave diameter with the maximum at d=1~1.1 mm; the load carrying capacity are basically a downward trend with the increase of diameter to depth ratio; the load carrying capacity increase with the increase of radial spacing when the concave area ratio remains unchanged; the load carrying characteristic of fan-conical pit is the most excellent compared with the other two pits.更多还原