关于曲柄平衡游梁式抽油机平衡问题

Balancing of crank-balanced beam pumping unit

针对曲柄平衡游梁式抽油机存在平衡率调整困难的实际情况，通过理论分析，推导出了平衡块移动量的计算公式。与现有其他计算公式相比，该公式结构简单，计算容易，便于掌握，为提高平衡率调整的准确性提供了理论依据。同时也指出：该公式要准确地应用于实际工作，尚存在在测电流峰值的同时不能测出曲柄相应转角φ的难题。

In the light of the difficulty in adjusting the balaneing ratio of crank-balanced beam pumping unit,by means of theo-ratical analysis, the equation for calculating the displacement of the displacement of the counterbalance is derived ,This equation is simpleand easy and provides a basis for improving the accuracy of the adjustment of balancing ratio.