Energy-saving tower-frame pumping unit
A tower-type pumping unit and energy-saving technology, which is applied in the fields of production fluids, wellbore/well components, earth-moving drilling, etc., can solve the problems of large energy consumption, and achieve the effect of large energy saving and obvious energy saving effect.
Inactive Publication Date: 2013-04-17
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Problems solved by technology
[0003] The purpose of the present invention is to provide an energy-saving tower pumping unit to solve the problem of large energy consumption due to excessive starting or braking current of the motor of the pumping unit
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[0008] refer to figure 1 , figure 2 , the present invention includes a base 2, a bracket 3, an upper platform 10, a counterweight 5, a counterweight sling 6, a sucker rod 7, a rope hanger 9, a small sprocket 12, a large sprocket 16, a motor 11, a chain 13, Sucker rod suspension rope 19, drive wheel 17, drive shaft 18, bearing frame 21, electric control cabinet 1, square tooth wheel 20, sensor 22, is characterized in that: pinion gear 15 fixed on the drive shaft 18 and is installed on the bearing frame The large gears on 21 are meshed, and the energy-saving pendulum 8 is fixed on the large gear 14, thus forming an energy-saving device. The weight of the energy-saving pendulum is W, the distance between the center of gravity of the energy-saving pendulum and the center of rotation of the energy-saving pendulum is H, and the driving wheel The radius of the rod is R, and the weight of the sucker rod is t 杆 , the weight of the oil column in the oil extraction pipe is t 油 , the ...
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An energy-saving type derrick pumping unit comprises a base, a support, an upper platform, a counterweight box, a sucker rod, a small chain wheel, a big chain wheel, a motor, a driving wheel, a driving shaft, a bearing support, an electric control cabinet, a square cone and a sensor. The pumping unit is characterized in that a small gear fixed on the driving shaft meshes with a big gear installed at the bearing support and an energy-saving swing member is fixed on the big gear to form an energy-saving device. The weight of the energy-saving swing member W meets the equation that W=Rit oil / 2H sin phi, wherein R is the radius of the driving wheel, i is a transmission ratio of the small gear and the big gear, t oil is the weight of the oil column in the oil drawing pipe, H is the distance of the center of gravity of the energy-saving swing member and the center of gyration of the energy-saving swing member, and phi is the pendulum angle of the energy-saving device. A counter-clockwise torque generated by the sucker rod and the oil column is equal to the sum of a clockwise torque generated by the counterweight box, a clockwise torque generated by the motor on the driving shaft and a clockwise torque generated by the energy-saving swing member on the driving shaft, which means that the motor can start or brake under no load condition so that the whole machine obtain the maximum energy saving effect.
Description
technical field [0001] The invention relates to an oil extraction device, in particular to an energy-saving tower type oil pumping unit. technical background [0002] At present, the patent number is ZL200720147684.3 gearless transmission pumping unit and the patent number is 200410011020.5 oil pumping and workover unit, etc., all belong to the tower type pumping unit, and their common feature is stable operation, which is different from the conventional beam pumping unit Compared with the energy-saving effect, the starting current and the braking current are relatively large when the motor frequently changes direction, which greatly affects the overall energy-saving effect. For the tower pumping unit, when the sucker rod rises and falls The loads are completely different, and the difference between them is relatively large. In this case, how to achieve greater energy saving is an urgent problem to be solved. Contents of the invention [0003] The purpose of the present...
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Inventor 洪日金成群
Owner 金成群