摘要
开采低产井时,由于常规游梁式抽油机冲次偏高,无法满足低产井对低冲次的要求,导致大部分油井供液不足,甚至抽空。这不仅加大了油井的功率消耗,而且加剧了抽油机和井下杆管泵的磨损。鉴于此,设计了一种新型螺旋凸轮式抽油机。该抽油机采用螺旋凸轮作为换向机构,采用大传动比的摆线针轮减速器作为减速机构,具有体积小、质量轻、传动效率高、易于实现低冲次等优点。仿真结果表明,与常规游梁式抽油机相比,该抽油机减速器输出轴扭矩波动小,基本消除了负扭矩,电动机输入功率下降48.65%。
To meet the need of low pumping speed in low-production wells,a new type of spiral cam-pumping unit was designed.The unit adopted the spiral cam as the reverse mechanism and adopted the cycloidal pinwheel decelerator of big drive ratio as the reduction mechanism.It has such advantages as small size,light mass,high driving efficiency and easy achievement of low pumping speed.The simulation result indicates that,compared with that of the ordinary beam pumping unit,the output shaft of gear reducer of the new unit has a small torque fluctuation.The negative torque has basically been eliminated and the motor's input power drops by 48.65 percent.
出处
《石油机械》
北大核心
2010年第10期29-32,94,共4页
China Petroleum Machinery
基金
国家自然科学基金项目"游梁式抽油机井系统效率极限值的仿真研究"(50974108)的部分研究成果
关键词
抽油机
螺旋凸轮
低冲次
优化设计
性能仿真
pumping unit,spiral cam,low pumping speed,optimal design,performance simulation
