石油矿场机械
石油礦場機械
석유광장궤계
OIL FIELD EQUIPMENT
2014年
5期
18-21
,共4页
王建萍%苏颖%刘彩玉%杨胡坤
王建萍%囌穎%劉綵玉%楊鬍坤
왕건평%소영%류채옥%양호곤
悬点载荷%平衡效果%变速拖动%转矩因数
懸點載荷%平衡效果%變速拖動%轉矩因數
현점재하%평형효과%변속타동%전구인수
suspension load%balance effect%variable speed drive%torque factor
为分析游梁式抽油机在电动机变速拖动下的悬点载荷变化特征与平衡效果，建立了游梁式抽油机在变速拖动下的动力学计算方法。通过初始设定游梁式抽油机悬点的常规、梯形、三角形3种速度运动规律，分别研究了在不同运动规律下，抽油机悬点动力示功图的变化特性及抽油机经曲柄平衡后的平衡效果。结果表明：悬点速度曲线为梯形曲线时，悬点交变载荷降低率为13．38％，平衡后负转矩明显减少，具有一定的节能效果。
為分析遊樑式抽油機在電動機變速拖動下的懸點載荷變化特徵與平衡效果，建立瞭遊樑式抽油機在變速拖動下的動力學計算方法。通過初始設定遊樑式抽油機懸點的常規、梯形、三角形3種速度運動規律，分彆研究瞭在不同運動規律下，抽油機懸點動力示功圖的變化特性及抽油機經麯柄平衡後的平衡效果。結果錶明：懸點速度麯線為梯形麯線時，懸點交變載荷降低率為13．38％，平衡後負轉矩明顯減少，具有一定的節能效果。
위분석유량식추유궤재전동궤변속타동하적현점재하변화특정여평형효과，건립료유량식추유궤재변속타동하적동역학계산방법。통과초시설정유량식추유궤현점적상규、제형、삼각형3충속도운동규률，분별연구료재불동운동규률하，추유궤현점동력시공도적변화특성급추유궤경곡병평형후적평형효과。결과표명：현점속도곡선위제형곡선시，현점교변재하강저솔위13．38％，평형후부전구명현감소，구유일정적절능효과。
In order to solve the change characteristics and balance effect of suspension point load under the motor variable speed,a dynamics calculation method of variable speed drive of beam pumping unites is established.Three kinds of suspension speed of beam pumping units were set:conventional speed,trapezoidal speed,triangle motion speed,then the change characteristics of pumping unit suspension dynamic indicator diagram and the balance effect of pumping unit which is balanced by crank are respectively studied under different motion.The results show that,when suspension velocity curve is trapezoidal,the reduction rate of suspension alternating load was 13.38%,the negative torque decreased significantly after balancing,it has a certain energy-saving features.
