本文根据前置式游梁抽油机的运动特性、几何条件及传力特性,用图解法按运动过程的极限位置进行设计。在最佳传动角的条件下,确定曲柄摇杆机构的几何参数。用曲线族表示游梁驴头在上死点的位置角β、最佳传动角μ_(opt)与曲柄转角α之间的关系。这种方法直观易懂,求解较快,可供抽油机设计者参考。 In this paper, according to the front beam pumping unit kinematic characteristics, geometric conditions and transmission characteristics, with the graphic method according to the limit of the movement process design. In the best transmission angle conditions, to determine the crank rocker mechanism geometry. The relationship between the position angle β, the optimal transmission angle μ_ (opt) and crank angle α of the donkey head at the top dead center is expressed by a family of curves. This method is straightforward and easy to understand and can be used as a reference for pumping unit designers.