西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (5): 130-133.DOI: 10.3863/j.issn.1000-2634.2007.05.36

• 石油机械工程及其它 • 上一篇    下一篇

基于相对振动能量的转轴运行状态诊断

万波 张来斌 王朝晖   

  1. 中国石油大学机电工程学院,北京 昌平 102249
  • 收稿日期:2006-09-29 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20
  • 通讯作者: 万波

OPERATION STATION DIAGNOSIS OF ROTOR BASED ON SWIVEL RELATIVE VIBRATION ENERGY

WAN Bo ZHANG Lai-bin WANG Zhao-hui   

  1. Institute of Mechanical and Electrical Engineering, China University of Petroleum,Changping Beijing 102249, China
  • Received:2006-09-29 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20
  • Contact: WAN Bo

摘要: 定性分析了输油泵机组转轴的运行状态与两端相对振动能量的关系曲线近似服从浴盆曲线,但比浴盆曲线多出一个拐点。利用了多测点、多通道轴心轨迹振动信号合成三维轴心轨迹,在此基础上提取轴两端测点的轴心轨迹相对跳动量,该指标融合了相位及轴心轨迹半径两个指标;并提取了可以反应转轴两端相对跳动量能量的指标;在大量实验的基础上,验证了该指标与机组的运行状态曲线与定性分析的结果基本上一致。验证了转轴两端相对振动能量法对转子系统运行状态分析、诊断的可行性。

关键词: 输油泵机组转轴, 三维轴心轨迹, 相对跳动量, 相对振动能量, 石油机械

Abstract: The relation curve is analyzed qualitatively between the rotor shaft of oil transfer pump unit operation situation and relative vibration energy of swivel double-ended points, and it is similar to “the bathtub curve” except to an extra breakpoint. The multi-measuring points, multi-channels vibration signals of axle centre trail is used to integrate three-dimension axle centre trail, based on this, the relative vibration energy of swivel double-ended points is obtained, which includes two index information, the phase and axle centre trail radius. Then the energy index, root-mean-square which can be reacted the energy of the relative bounce amount is also obtained. Based on a lot experiment, the relation between the index and the unit situation is proved to similar to the qualitative analysis result. So the feasibility is proved, the method can be used to analyze the operation situation of rotor system.

Key words: rotor shaft of oil transfer pump, three-dimension axle centre trail, relative bounce amount, relative vibration energy, petroleum machinery

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