【摘要】 本文根据抽油机上下冲程功能相等的原则,分析了前置式抽油机取得旋转平衡的近似计算方法。并对两种机型提出了曲柄平衡位置工作实用图表,可供前置式抽油机设计和使用者参考。更多还原

【Abstract】 On the principle of both work and energy equalization during the upstroke and downstroke, the writer analyses an approximate calculating method of rotary balance acquired by this type of the beam pumping unit. Practical working charts for the crank balanced position of two types of units, which will give a reference to the designers and operators, are offered.更多还原