活塞油环体内圆面弹簧凹槽的加工办法  

Processing Method for Spring Groove on Inner Circular Surface of Piston Oil Ring

作　　者：李达 Li Da(Hua Minnan Distribution Group Co.,Ltd.,Fujian Nanping 353000)

机构地区：[1]华闽南配集团股份有限公司,福建南平353000

出　　处：《内燃机与配件》2024年第22期123-125,共3页Internal Combustion Engine & Parts

摘　　要：文章通过CNC精密切削技术,在气缸套内壁上加工出一系列双螺纹槽,其深度范围为50~250μm,槽宽为3 mm,目的是研究不同深度的槽形对气缸与活塞环摩擦磨损特性的影响。实验在TCLPR-1缸套-活塞环摩擦磨损实验装置上进行,实验条件保持一致,包括相同的载荷和转速。实验结果表明,深度为150μm的双螺纹槽在改善润滑条件、增加油膜厚度、减少摩擦和表面粗糙度方面表现出显著效果,同时提高了油膜的贮存能力和支撑性能。相比之下,50μm深的槽形在性能上表现较差。This study employed CNC precision cutting technology to machine double-threaded grooves with depths ranging from 50 to 250μm on the inner wall of the cylinder liner,with a groove width of 3 mm,to investigate the effects of different groove shapes on the friction and wear characteristics of the cylinder-piston ring.The experiments were conducted using the TCLPR-1 cylinder liner-piston ring friction and wear test device under the same load and rotational speed.The results showed that double-threaded grooves with a depth of 150μm significantly improved lubrication conditions,increased oil film thickness,reduced friction and surface roughness,and enhanced oil storage capacity and support performance.In contrast,grooves with a depth of 50μm exhibited poorer performance.

关 键 词：双螺纹凹槽织构 摩擦磨损 缸套-活塞环 接触电阻 

分 类 号：U464.133.1[机械工程—车辆工程]