现有船舶尾轴密封所采用的唇式油封回的唇口所在平面均是垂直于轴线布置的,且唇部均无回油能力,致使这类密封在使用时均存在着摩擦偶件的磨损大、寿命短以及材质要求高等缺陷。为了克服上述缺陷,本文提出了一种唇口斜置,唇部带双回流的新型密封环,并介绍了该环的结构原理、理论分析的结果及其密封装置的检测与试验情况。 The lip of the lip seal used in the stern shaft seal of the existing ship is arranged perpendicular to the axis and has no ability of oil return to the lip, which causes the abrasion of friction seals Large, short life expectancy and higher quality defects. In order to overcome the above defects, this paper proposes a new type of seal ring with lip lip and double lip return. The principle of the ring, the theoretical analysis and the testing and testing of the seal device are also introduced.