基于油液清洁度要求的滑靴油膜厚度设计

The Calculation of Slipper Oil Film Thickness Based on Oil Cleanliness

静压支承技术使滑靴在一定的油膜厚度下达到受力平衡,克服滑靴剩余压紧力设计法的不足。该文对滑靴油膜厚度的计算进行研究:首先,分析柱塞节流孔、油池压力及密封带节流共同组成的液压半桥的工作原理,得出液压半桥各设计参数与油膜厚度的关系;然后,考虑实际应用工况中油液的主要颗粒物堵塞节流孔的可能性以及污染物对滑靴磨损的影响,得出不同清洁度对滑靴油膜厚度设计的要求。最后总结出可适应于不同清洁度等级的滑靴油膜厚度计算方法。

Slipper force can be balanced with oil film, by applying hydrostatic bearing technology, it eliminates the disadvantages of the residual impaction force design. This article research on the calculation of oil film thickness： Firstly, analyze the theory of hydraulic half bridge consisting of orifice, pressure of oil pool and sealing land, and conclude the relationship between the parameters of hydraulic half bridge and the oil film thickness. Then considering the possibility of the particles plugging the orifice in actual application condition, and the influence on slipper, work out the requirement on slipper film thickness of different oil cleanness. Finally conclude the calculation method of slipper oil film thickness under different oil cleanliness requirement.