悬臂式离心风机叶轮侧轴承烧损原因分析及解决

Solution and Analysis of Bearing Overburning in the Side of Cantilever Centrifugal Fan Impellers

针对悬臂式离心风机一直存在叶轮侧轴承温度过高、温升过快、振动较大问题,对风机结构性能、轴承损坏情况及轴承损坏过程中传感器提供的振动曲线图、温度曲线图研究分析。经计算各类轴承的最小负荷及轴承受力特点,将该悬臂式离心风机叶轮侧轴承改型,并将原风机末端两盘轴承采用同一支路润滑系统改为两盘轴承由各自分支路的单独润滑系统,该方案彻底解决了上述故障。

Cantilever centrifugal fans have problems related to the bearing on the impeller side such as a high temperature,the temperature risinge too fast,and large vibrations during operation.Targeting these problems,research on the fan＇s structure and performance, bearing damage and the vibration curve, and temperature curve diagrams sent by sensors during the process of bearing damage were measured. Finally,by computing the minimum load of various bearings and bearing load characteristics,the cantilever type centrifugal fan bearing on the impeller side was modified so the original fan at the end of the two bearings with one branch lubricating system was modified into two bearings with independent lubrication systems by the respective branch.This alteration completely solved the above fault.