满足国六排放标准的直列4缸轻型柴油机活塞销孔和活塞销设计  

Design of piston pin bore and piston pin for inline 4-cylinder light-duty diesel engines that meet ChinaⅥvehicle emission standards

作　　者：李倩 楚翔宇 贾志勇 曹江鹏 李珂 LI Qian;CHU Xiangyu;JIA Zhiyong;CAO Jiangpeng;LI Ke(Binzhou Bohai Piston Co.,Ltd.,Binzhou 256602,Shandong,China;Shandong Province Key Laboratory of Engine Piston Cylinder Kits,Binzhou 256602,Shandong,China;Shandong Jingbo Biotechnology Co.,Ltd.,Binzhou 256600,Shandong,China)

机构地区：[1]滨州渤海活塞有限公司,山东滨州256602 [2]山东省发动机活塞摩擦副重点实验室,山东滨州256602 [3]山东京博生物科技有限公司,山东滨州256600

出　　处：《柴油机设计与制造》2024年第2期13-18,共6页Design and Manufacture of Diesel Engine

摘　　要：针对轻型柴油机活塞销孔部位失效问题,设计4种满足国六排放标准的直列4缸轻型柴油机活塞销孔和活塞销方案。利用有限元分析软件对其进行模拟计算,对活塞销孔接触应力和疲劳,以及活塞销应变和疲劳进行比较;同时,为验证模拟分析的准确性,根据实际情况对其中3种方案进行了销孔液压脉冲试验验证,试验结果与模拟结果吻合良好。设计方案可为高强化柴油机活塞和活塞销设计及失效改进提供参考.Due to the failure issues of piston pin bores in light diesel engines,four schemes for pis⁃ton pin bores and piston pins of inline 4-cylinder light-duty diesel engines that meets the China VI ve⁃hicle emission standards are designed.Finite element analysis software is used to simulate and calculate them,and the contact stress and fatigue of the piston pin bores,as well as the strain and fatigue of the pis⁃ton pins,are compared.At the same time,to verify the accuracy of simulation analysis,three schemes are subjected to hydraulic impulse testing based on actual conditions.The test results are in good agree⁃ment with the simulation results,which can provide reference for the design and failure improvement of high-strength diesel engine pistons and piston pins.

关 键 词：活塞销 活塞销孔 有限元分析 失效分析 

分 类 号：U464.172[机械工程—车辆工程]