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根据四连杆机构和滑轮组机构的特点和工作原理 ,对CYJBZ10 - 8- 73HY摆轮增程式长冲程抽油机进行了运动分析 ;推导了悬点位移的计算公式 .根据该公式 ,应用数值法计算了悬点的速度和加速度 ;给出了该抽油机现场运行的对比测试数据 .摆轮增程式长冲程抽油机利用链条行程是摆轮行程的 2倍 ,实现了增程 ,与其它类型长冲程抽油机相比具有质量轻、高度低、稳定性好等特点 .理论计算和现场实践都表明 ,与CYJ - 3- 4 8HB抽油机相比 ,其节电幅度为 2 6 % ,启动电流下降4 1% ,平均日增油 10 .76t.
According to the characteristics and working principle of the four - bar linkage and pulley block mechanism, the motion analysis of the CYJBZ10-8- 73HY balance long stroke pumping unit is carried out and the calculation formula of the displacement of the suspension point is deduced.According to the formula, The speed and acceleration of the hanging point are calculated.The comparison test data of the pumping unit in the field are given.The balance stroke long stroke pumping unit utilizes double stroke of the balance stroke to realize the extended range and other Type long-stroke pumping unit has the characteristics of light weight, low height and good stability, etc. Both theoretical calculation and field practice show that compared with the CYJ-3-8HB pumping unit, the energy-saving range is 26% , The starting current decreased 4 1%, the average daily increase of oil 10 .76t.