新型摇杆式抽油机

摇杆式抽油机以摇杆、摆轮代替连杆、游梁和驴头,用气压平衡代替平衡块。电动机单向旋转,用曲柄摇杆机构换向,实现悬点的往复直线运动。这种抽油机的特点是换向平稳可靠,平衡效果好,可实现长冲程低冲次抽汲,适用于深井和稠油开采。

Rocker-Type Pumping Units

The rocker-type pumping unit described in this article has a crank-rocker mechanism and a wobble wheel instead of the pitman, walking beam and horsehead of a conventional pumping unit, and uses compressed air instead of the counterweights. The prime motor rotates in a fixed direction and the alternating motion of the carrier bar is accomplished by the crank-rocker mechanism.The unit is characterizied by smooth and reliable reverse and good balance. It can work with long stroke at low pumping speed, so it is suitable for deep well exploitation and thick oil production.