曲柄轴净扭矩趋近直线形态的抽油机传动机构研究

普通电动机输出扭矩基本恒定,而抽油机曲柄轴净扭矩是交变载荷,两者的载荷特性无法达到"柔性"匹配,导致抽油机运行效率低下、能耗增高。利用游梁结构和导杆机构设计的游梁式六杆机构,实现了曲柄轴净扭矩曲线趋近于直线形态,提高了电动机的功率利用率,实现了抽油机节能降耗。根据设计方案,建立游梁式六杆机构运动和动力学模型,分析影响曲柄轴净扭矩曲线形态的主要因素,并以MATLAB优化工具箱为平台,对设计方案进行全参数优化设计,以实际载荷工况对游梁式六杆机构抽油机节能效果进行对比分析。

Transmission mechanism research of the brace axis negative torque approach linear-form pumping unit

The output torque of common asynchronous motor is basically constant,but the brace axis negative torque is alternate load,so both the load performance are not able toflexibilitymatch,lead to lower circulate efficiency and higher energy consumption of pumping unit.A six bar pumping unit that is designed by the beam structure and guide rod mechanism,realizes a type of the linear-form of the brace axis negative torque,and obviously raises the power utilization rate of electromotor.The pumping unit decreases en...