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根据动力分析理论 ,讨论了变载式起升机构———游梁式抽油机的载荷、曲柄轴转矩和平衡之间的变化规律 ,考虑了构件转动惯量对机构动力性能的影响 ,给出了该机构动力分析的普遍方法 ,分析了原动机在两种工况下的效率曲线及影响效率的因素 ,提出了改善变载式起升机构动力性能的措施 .
According to the dynamic analysis theory, the variation regularity between load and crankshaft torque and balance of variable load lifting mechanism --- beam pumping unit is discussed. The influence of inertia of member on the dynamic performance of mechanism is discussed. A general method of dynamic analysis of the mechanism is presented. The efficiency curve of the prime mover under two conditions and the factors affecting the efficiency are analyzed. The measures to improve the dynamic performance of the variable load lifting mechanism are put forward.