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本文论述了钻井泵载荷谱的编制方法、泵压对钻时的分布规律及载荷谱的应用。通过对SL3NB-1000型钻井泵载荷谱的编制和载荷折算系数的计算,作者认为,可利用现场实测的载荷谱来校核钻井泵被动轴的疲劳强度。
This paper discusses the compilation method of drilling pump load spectrum, the distribution law of pump pressure on drilling and the application of load spectrum. Based on the compilation of the load spectrum of SL3NB-1000 drilling pump and the calculation of the load conversion factor, the authors believe that the fatigue strength of the passive shaft of the drilling pump can be checked by using the field measured load spectrum.