叙述了第二代两级平衡游梁式抽油机的工作特点．它与同型号（１４型）的异相曲柄平衡游梁式抽油机，在相似型式试验工况下实测的数据比较中，前者优点异常突出，表现着平衡效果好，输出扭矩小，提升悬点负荷能力大，节能效果显著，输出扭矩、电流和电功率增幅小，制造成本低．因此，这种新机型具有很强的竞争能力和广阔的发展前景． Describes the second generation of two-stage balance beam pumping unit working characteristics. It is with the same type (14) out of the crank balance beam pumping unit, in the similar type of test conditions measured data comparison, the former exceptionally prominent advantages, showing a good balance of effects, the output torque is small, improve the suspension Point load capacity, energy-saving effect is significant, the output torque, current and power increase small, low manufacturing costs. Therefore, this new model has a strong competitive edge and broad prospects for development.