φ3×11m磨机中空轴联接螺栓的断裂原因分析  

Failure cause analysis on articulation bolt of (?)3× 11 m mill center empty axis

作　　者：于月民[1] 孙立红[1] 

机构地区：[1]黑龙江科技学院,黑龙江哈尔滨150027

出　　处：《煤矿机械》2003年第9期54-56,共3页Coal Mine Machinery

摘　　要：针对球磨机运转时中空轴联接螺栓常发生断裂的实际问题,根据线弹性理论,对Φ3×11m磨机的中空轴联接螺栓进行力学分析,研究其应力分布规律,研究表明:联接螺栓在循环的交变应力作用下,强度明显不足,必然会引起断裂。研究结果为改进螺栓提供了理论基础和可靠的依据。According to linear elastic theory, the paper researches on the regularity of stress about articulation bolt of 3'x 11m mill center empty axis on the basis of mechanics analysis, aimed at dealing with the problem of articulation bolt failure when the mill is working. As shown by the study,being acted by alternating stress,bolt strength is deficiency as leads to failure. The result of study provides a theoretical method and reliable foundation for improving the bolt design.

关 键 词：磨机 螺栓 交变应力 断裂 

分 类 号：TH131.3[机械工程—机械制造及自动化]