四连杆抽油机传动机构的结构计算与优化
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In order to improve the movement efficiency of the new pumping unit and realize the optimization structure of the transmission mechanism, modern design methods were used. Based on SolidWorks2010 design software, the initial entity structure model of the four-bar linkage transmission mechanism was established and its structure calculation and optimization were performed. The comparative analysis of the centroid coordinate changing with time was also given out. Before and after optimization, the datas which were the trajectory coordinate values of the center of mass changing over time were obtained and the X-axis, Y-axis coordinate of centroid relative to the fulcrum were also obtained. Finally, the optimization structure of the transmission mechanism was acquired. The results indicate that, after the optimized transmission mechanism, the maximum deviation of the X-axis coordinate values of the center of mass is reduced by about 85.87%, and the maximum deviation of the Y-axis coordinate values of the center of mass is reduced by about 92.42%. The transmission mechanism motion is relatively stable and thereby its energy consumption is reduced significantly.为了提高新型抽油机运动效率,以及实现最优的抽油机传动机构,利用现代设计方法,以SolidWorks2010软件为设计平台,建立了四连杆传动机构的初始实体结构模型,并对其进行了结构计算与优化设计,对比分析了质心坐标随时间的变化趋势,从中获得了四连杆传动机构优化前后质心轨迹坐标随时间变化的数据,以及质心X轴、Y轴坐标偏离支点的对比分析曲线,最终得到了抽油机传动机构的优化结构。研究结果表明,优化后的传动机构质心在x轴的坐标最大偏差可降低约85.87%,Y轴的坐标最大偏差可降低约92.42%,且运动变化较平稳,运动能耗降低明显。
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