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专利申请号:CN200910072687.9公开号:CN101629483功率平衡抽油机主要解决现有抽油机运动性能差、载荷波动大、耗能高、调参数及调平衡强度较大的问题。其特征在于:减速器通过主输出轴带动抽油曲柄,通过副输出轴带动功率平衡重曲柄,且副输出轴的转速为主输出轴转数的2倍,在抽油曲柄上死点位置,功率平衡重曲柄相对于抽油曲柄滞
Patent application number: CN200910072687.9 Publication number: CN101629483 Power balance pumping unit mainly solves the problem of poor pumping performance, large load fluctuation, high energy consumption, high tuning parameters and balance balance of the existing pumping units. The utility model is characterized in that the reducer drives the oil sucking crank through the main output shaft and drives the power balance heavy crank through the auxiliary output shaft and the speed of the auxiliary output shaft is double the rotation speed of the main output shaft; Power balance heavy crank relative to the pumping crank hysteresis