Fault Analysis of Abnormal Wear of Cam and Roller in a Certain Type of Injection Pump
This article addresses the issue of abnormal wear of cam rollers in a certain type of fuel injection pump during use.It con-structs a fault tree from multiple dimensions,including design,raw materials,heat treatment,mechanical processing,assembly,and external factors,and conducts a step-by-step analysis and troubleshooting.The analysis results show that the direct cause of abnormal wear of the cam roller is insufficient oil supply and poor lubrication effect,while the root cause lies in improper operation.By standard-izing the operation process,adding a warning sign for oil filling on the fuel injection pump,and then conducting a test verification,not only confirmed the accuracy of the problem analysis,but also verified the effectiveness of the improvement measures.The systematic a-nalysis method proposed in this article for the abnormal wear of the cam roller of the fuel injection pump provides a reference for solving similar problems.