某款柴油机化瓦故障分析和解决方案  

Bearing Failure Analysis and Solution of a Diesel Engine

作　　者：徐贤发 臧运峰 徐菁菁 李孝珍 史彦晓 XU Xianfa;ZANG Yunfeng;XU jingjing;LI Xiaozhen;SHI Yanxiao(WEICHAI POWER CO.,LTD,Department of R&D Center,261061,Weifang,China;WEICHAI POWER CO.,LTD,Manufacturing Department,261061,Weifang,China)

机构地区：[1]潍柴动力股份有限公司发动机研究院,潍坊261061 [2]潍柴动力股份有限公司制造部,潍坊261061

出　　处：《车辆与动力技术》2023年第1期15-20,共6页Vehicle & Power Technology

摘　　要：可靠性是柴油机性能的重要指标,本文对曲轴连杆轴颈化瓦故障现象进行了分析,采用仿真和试验验证得出一缸化瓦比率大的原因并优化改进,通过控制配合间隙、粗糙度指标、清洁度,解决了柴油机出厂试车及市场批量化瓦故障.本文可为发动机研发人员解决化瓦故障提供借鉴.Reliability is an important index of diesel engine performance.This paper analyzes the phenomenon of crankshaft journal bearing failure,and uses simulation and test to verify that the reason for the large ratio of No 1 cylinder bearing failure.It is optimized and improved by controlling the clearance,roughness and cleanliness,the problem of bearing failure in the factory test and market is solved.This paper can provide reference for engine research and development personnel to solve the problem of bearing’s wear and scratch.

关 键 词：曲轴 连杆颈 化瓦 粗糙度 Rmr(C) 配合间隙 可靠性 

分 类 号：U464.13[机械工程—车辆工程]