改性尼龙水润滑轴承摩擦学性能试验研究  

Experimental Research on Tribological Properties of Modified Polyamide Water-Lubriaced Bearing

作　　者：疏舒[1] 何涛[1] 羊慧 黄敏莉 欧阳武[3] SHU Shu;HE Tao;YANG Hui;HUANG Minli;OUYANG Wu(Wuhan Second Ship Design Institute,Wuhan Hubei 430205,China;Jiangsu Donghua Test Technology Co.,Ltd.,Jingjiang Jiangsu 214500,China;School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan Hubei 430063,China)

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430205 [2]江苏东华测试技术股份有限公司,江苏靖江214500 [3]武汉理工大学交通与物流工程学院,湖北武汉430063

出　　处：《润滑与密封》2023年第9期165-169,共5页Lubrication Engineering

基　　金：国家自然科学基金项目(52006156);国防科技重点实验室基金项目(2021-JCJQ-LB-036)。

摘　　要：针对舰艇推进系统用水润滑轴承低噪声设计需求,研制改性尼龙(PA)的轴承材料及轴承样机,利用多功能摩擦磨损试验机对改性PA材料样品进行摩擦学性能试验,并与丁腈橡胶和赛龙SXL材料的摩擦学性能进行对比;在水润滑轴承试验台上开展PA轴承样机转速特性试验和载荷特性试验,获取不同比压和转速下摩擦因数和振动特性数据。研究结果表明:与丁腈橡胶和赛龙SXL材料相比,改性PA材料具有摩擦因数小、磨损率低的优点;低转速下,水润滑轴承摩擦因数随转速增大而减小,随比压增大而增大,转速增加至100 r/min后,摩擦因数变化趋势逐渐减缓;在工作转速范围内改性PA材料水润滑轴承无异常摩擦振动和噪声。研究结果为舰艇低噪声水润滑艉轴承设计提供参考。Aimed at the low noise design requirements of water-lubricated bearings in the submarine propulsion system,modified polyamide(PA)bearing materials and bearing prototypes were developed.The tribological properties of the PA material sample were studied by a multi-functional friction and wear tester,and were compared with the tribological properties of the NBR and Thordon SXL materials.The speed and load characteristic test of the PA bearing prototype were carried out on the water-lubricated bearing test bench,and the friction coefficient and vibration characteristic data under different specific pressure and speed were obtained.The results show that the modified PA material has the advantages of small friction coefficient and low wear rate compared with NBR and Thordon SXL material.At low speeds,the friction coefficient of water lubricated bearings decreases with the increase of speed and increases with the increase of specific pressure.After the speed increases to 100 r/min,the trend of friction coefficient change gradually slows down.The research results provide a reference for the design of low-noise water-lubricated stern bearings for submarine.

关 键 词：水润滑轴承 改性PA材料 摩擦学性能 载荷特性试验 转速特性试验 

分 类 号：TH113[机械工程—机械设计及理论] U664.21[交通运输工程—船舶及航道工程]