1400型压裂泵动力端花键轴断裂失效分析  

The rupture failure analysis of splined shaft in the 1400 fracturing pump’s power end

作　　者：梁政[1] 钟功祥[1] 陈伟[1] 刘让杰[2] 

机构地区：[1]西南石油学院,四川成都610500 [2]中原油田,河南濮阳457002

出　　处：《机械》2005年第3期66-68,共3页Machinery

摘　　要：针对 1400 型压裂泵动力端花键轴断裂的实际情况,开展了材料组份分析、机械性能测试与金相显微分析。初步确定了花键轴的断裂是疲劳断裂,裂纹源在花键齿根底部过渡圆角曲率半径最小的表面部位。对于花键轴的改进设计具有参考意义。The paper have carried on the comprehensive analysis for its material chemical composition, mechanical performance and metallurgical phase aiming at practical situation of the splined shaft crack in the 1400 fracturing pump power end. We have made certain that the reason of the splined spindle rapture is fatigue failure, its crack initiation lies in the minimal knuckle curvature radius surface region of the spline dedendum bottom. It is significant for the splined spindle improved design.

关 键 词：花键轴 断裂 疲劳 

分 类 号：TH38[机械工程—机械制造及自动化]