基于尾轴密封的尾轴传动模型构建及其摸底验证分析  

Model Construction of Tail Shaft Drive Based on Tail Shaft Seal and Its Mapping Verification

作　　者：曹聪 Cao Cong(Harbin Dong'an High Precision Tubular Shaft Manufacturing Co.,Ltd.,Harbin Heilongjiang 150060,China)

机构地区：[1]哈尔滨东安高精管轴制造有限公司,黑龙江哈尔滨150060

出　　处：《机械管理开发》2024年第9期40-43,共4页Mechanical Management and Development

摘　　要：密封组件在防止海水进入轴承腔内方面起着关键作用。由于这些组件常在多变的深海环境中工作,它们需应对不断变化的压力、摩擦及海水的腐蚀性和不良润滑性。基于此,研究提出了基于尾轴密封的尾轴传动模型。该模型设计了两种尾轴动密封装置方案,即减压补偿式密封和经表面优化的机械密封,并通过有限元分析与优化算法进行性能评估。结果显示,减压补偿式密封能有效地降低工作压力约10%,进而延长密封圈使用寿命;经表面优化的机械密封方案中,当面积率为20%和深径比约为0.03时,油膜压力达到最大值。综合考虑,两种密封方案都能显著提升尾轴密封装置在多变环境下的性能和可靠性。该研究为在深海探测等领域中的密封系统设计提供了有益的参考,具有显著的应用前景。Seal components play a key role in preventing seawater from entering the bearing cavity.Since these components often operate in the variable deep-sea environment,they need to cope with the changing pressure,friction,and corrosive and poor lubrication properties of seawater.Based on this,the study proposes a tailshaft drive model based on tailshaft seals.Two options of tailshaft dynamic sealing device are designed in the model,i.e.,decompression-compensated seal and surface-optimised mechanical seal,and their performance is evaluated by finite element analysis and optimisation algorithms.The results show that the decompression-compensated seal can effectively reduce the working pressure by about 10%,which in turn extends the service life of the seal.In the surface-optimised mechanical seal solution,the oil film pressure reaches its maximum value when the area ratio is 20%and the depth-to-diameter ratio is about 0.03.Taken together,both sealing schemes can significantly improve the performance and reliability of the tail shaft sealing device in variable environments.This study provides a useful reference for the design of sealing systems in deep-sea exploration and other fields,and has significant application prospects.

关 键 词：密封组件 尾轴 机械 减压补偿式 

分 类 号：U674.941[交通运输工程—船舶及航道工程]