针对目前油田普遍应用常规式游梁抽油机存在的问题；平衡性能相对较差,启动扭矩大,拖动电机功率大,抽油系统效率低和耗能较高等,应用下偏杠铃复合平衡技术对其进行节能技术改造.阐述了该项节能技术改造设计结构及工艺原理,对现场应用效果进行了分析评价,取得以下认识；一是曲柄与下偏杠铃的复合平衡方式,削减了抽油机峰值扭矩,降低了电机消耗功率,有效改善了抽油机平衡效果,平均节电率达到20.53％.二是从现场应用情况看,在不改变原机结构前提下,安装方便,投入成本较低,CYJ10型机改造的节电总体效果高于CYJ6型机.%Aimed at the issue of widely used conventional-style oil pumping beam, such as its balance performance was poor relatively, starting torque and electrical power were bigger, efficiency of pumping unit system was low and the energy consumption was higher. The biased downward barbell is used to balance the gearbox output moment in order to redesign the pumping units. Elaborating this energy-saving technology changes the design structure and process principle, application effect is analyzed and evaluated, and achieved following results. Firstly thecomplex balance of the counterbalance and biased downward barbell, reduces pumping unit peak torque and motor power consumption, improves the moment balance of pumping unit, the average electric saving ratio reaches 20.53%. Secondly from the view of field application, in the premise of unchanging the original pumping unit structure, it is easily installed with lower costs, The overall effect of energy-saving of the redesign CYJ10 style are higher than CYJ6 style.
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