Fifthly, with the calculation method for traditional pumping unit, the geometry, movement and dynamics of the pumping unit driven by flexible pitman were analyzed, the uniform calculation method for different curves has been proposed.

• 第五,应用常规抽油机的计算方法,对柔性连杆传动抽油机进行几何、运动、动力分析,针对不同曲线给出其统一的计算分析方法。