1、 游梁式抽油机连杆机构尺度优化及结构设计游梁式抽油机连杆机构尺度优化及结构设计 摘摘 要要：为了提高游梁式抽油机的动力性能，提出了游梁式抽油机连杆机构尺度综合 优选方法。首先，对常规游梁式抽油机的结构、性能及优缺点进行阐述，从而提出对 游梁式抽油机连杆机构尺度优化的方案。其次，建立尺度综合的数学模型，对尺度进 行综合优选，并据此对抽油机的运动特性进行分析。用最优尺度综合方法设计的抽油 机悬点最大加速度曲线变化更加平稳，峰值更小。然后，对游梁式抽油机的动力学进 行分析，计算出悬点载荷。最后，设计游梁式抽油机的主要零部件结构，并绘制装配 图和零件图。 通过和尺度优化前常规游梁式抽油机比较，悬点加速
2、度减少了 18.3%，悬点最大 载荷减少了 9.08%。表明以此设计的抽油机运动更加平稳，有一定的节能效果，该方 法也可用于类似四连杆机构的设计。 关键词：关键词：抽油机；连杆机构；尺度优化；结构设计 The optimization of linkage scale and the structural design of beam pumping unit Abstract: In order to improve the dynamic performance of the beam pumping unit, the linkage scale integrated optimal m
3、ethod for the beam pumping unit is proposed. Firstly, the overall structure, performance and advantages or disadvantages of the conventional beam pumping unit are described. And the beam pumping unit linkage scale optimization is introduced. Secondly, the mathematical model of the scale integrated f
4、or the beam pumping unit is established, which optimizes the scale of the pumping unit. In addition, the kinematics of the beam pumping unit is analyzed according to the results above. By using the optimal scale integrated method, the ariation of the acceleration of the suspended point for the beam pumping unit is smaller. Next, the dynamics of the beam pumping unit is analyzed and the load of suspended point for the beam pumping unit is calculated. Finally, the main parts of the structure of t
