考虑温度分布和初弹力影响的活塞环-缸套试验台研究  

A Piston Ring-Cylinder Liner Test Bench Considering Temperature Distribution and Pre-tension Effects

作　　者：宋振 刘晓日[1,2] 宋旭 陈袁 SONG Zhen;LIU Xiaori;SONG Xu;CHEN Yuan(School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China;College of Chemical Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学能源与环境工程学院,天津300401 [2]河北工业大学化工学院,天津300401

出　　处：《润滑与密封》2024年第8期82-87,共6页Lubrication Engineering

基　　金：国家自然科学基金青年基金项目(52005149);河北省自然科学基金面上项目(E2022202026)。

摘　　要：为探究活塞环初弹力作用下不同缸套温度对活塞环摩擦性能的影响,设计考虑缸套温度分布的活塞环初弹力摩擦性能试验台,其缸体-缸套组件基于浮动缸套方法设计,通过供油盖从顶部供润滑油,使用活塞环夹具安装活塞环,在缸套外壁安装3个环形电加热器对缸套进行预加热。当活塞环未加载荷仅在初弹力情况下,仅改变缸套温度分布,研究不同缸套温度分布对活塞环-缸套系统摩擦性能的影响。结果表明:随着缸套温度的升高,活塞环-缸套摩擦副摩擦力和摩擦功耗呈现先减小后增加的趋势,对于研究的活塞环-缸套摩擦副,在缸套温度为60~70℃时,摩擦力和摩擦功耗最小。因此存在合适的缸套温度,使得活塞环-缸套摩擦副的摩擦性能最优。To investigate the effect of different cylinder liner temperatures on the friction performance of piston ring with pre-tension,a test bench for the frictional properties of piston ring with pre-tension considering the temperature distribution of cylinder liner was developed.Its block and cylinder liner assembly is designed based on the floating cylinder liner method,which supplies lubricating oil from the top through an oil supply cap.The piston ring is installed using a piston ring clamp,and three annular electric heaters are installed on the outer wall of the cylinder liner to preheat the cylinder liner.When the piston ring is not loaded and only under the condition of pre-tension,only changing the temperature distribution of the cylinder liner,the influence of different temperature distribution of the cylinder liner on the friction performance of the piston ring-cylinder liner system was studied.The results show that as the temperature of the cylinder liner increases,the friction force and power consumption of the piston ring-cylinder liner friction pair show a trend of first decreasing and then increasing.For the studied piston ring-cylinder liner friction pair,the friction force and power consumption are the smallest when the cylinder liner temperature is between 60℃to 70℃.Therefore,there exists an appropriate cylinder liner temperature to optimize the friction performance of the piston ring-cylinder liner friction pair.

关 键 词：活塞环 浮动缸套 温度分布 摩擦力 摩擦功耗 

分 类 号：TH117.1[机械工程—机械设计及理论]