常规10型抽油机改造及推广使用效果

针对常规10型抽油机不能满足供液不足油井采油工况需要的问题，将该型抽油机改造成旋转驴头抽油机。主要改造内容是将固定式驴头改为旋转驴头，后者通过与增设的前连杆一端的铰接，可在游梁运动的同时实现自转。驴头公转和自转的冲程迭加，便达到增加冲程的目的。同时增添了曲柄副平衡块，以提高平衡扭矩。使用情况表明，由于冲程增加40％，冲次降低50％，整机运转更加平稳，噪音降低，而且减少了光杆断脱，提高了泵效。同时还收到了节省投资和降低电力消耗的良好效果。

Reforming and application of Model CYJ10-3-53HB pumping unit

Model CYJ10 - 3 - 53HB pumping unit cannot meet the need of the production of oil well with insufficient fluid supply, therefore it is reformed to a pumping unit with rotary horsehead. Instead of the fixed horsehead, a rotary horsehead is adopted, which is hinged with one end of the added fiont pitman and can realize seir rotation with the motion of the walking beam. The stroke of the unit can be increased with the superposition of the strokes of the revolution and self rotation of the horsehcad. And an auxiliary counterbalance is added to improve the balancing torque. Application shows that,owing to 40% increase of the stroke and 50% decrease of the pumping numbers, the unit operates more smoothly with less noise, the rate of breaking and falling-off of the polished rod is reduced and the pump efficiency is improved. Thereby the investment can be cut down and the power consumption can be reduced.