Electric-working abdicating and unloading linkage permanent-magnet-drive vertical type pumping unit

Abstract

The invention discloses an electric-working abdicating and unloading linkage permanent-magnet-drive vertical type pumping unit and belongs to the novel field of electromechanical integration application. The pumping unit comprises a stander which is arranged on a stander base and is moved through an electric-working abdicating device, a drive device which is arranged on a top platform of the stander and is used for connecting a motor with an electromagnetic brake, a speed reducer and a drive wheel in series through a permanent magnet coupler, an unloading auxiliary device and an intelligent controller which is arranged in a control cabinet on the lower part of the stander, wherein a travel of the intelligent controller is controlled through a sensor; a drive rope is arranged in rope slots formed in two axial sides of the drive wheel; one end of the drive rope is used for hanging a sucker rod, and the other end of the drive rope is used for hanging a balance weight with an anti-falling device; a load-loss protecting and slip preventing steel wire rope is fixed in a rope slot in the axial middle part of the drive wheel, and the other end of the load-loss protecting and slip preventing steel wire rope is connected with the balance weight with the anti-falling device. The pumping unit has the advantages of reducing the cost, improving the efficiency and saving energy along with environment friendliness, safety, reliability, intelligence and high efficiency and can be widely applied to oil extraction and other frequent-reversing lifting work of the vertical type pumping unit.

Description

technical field [0001] The invention relates to a permanent-magnet-driven vertical oil pumping unit linked by electric operation, unloading, hanging and pumping, and belongs to the new field of mechatronics application. Background technique [0002] Oil is the power source of the national economy and an indispensable and important strategic material, and the main means of oil extraction is the pumping unit. According to incomplete statistics, there are currently more than 1.5 million mechanical oil recovery wells in the world, of which the traditional four-link beam pumping unit accounts for about 90%, becoming the leading model of mechanical oil recovery. With the deterioration of the global environment, human beings have more and more urgent needs for energy saving, high efficiency, low carbon, and environmental protection. Various types of energy-saving and material-saving, non-stop intelligent parameter adjustment, safety, and environmental protection balance vertical pu...

AI Technical Summary

Problems solved by technology

[0005] Second, the unloading of the hanging pump is not easy to achieve by relying on its own power system, and the crane is often used on site;

[0006] Third, the loss-of-load protection is not as reliable as the traditional four-link beam pumping unit;

[0007] Fourth, the motor frequently transmits torque in forward and reverse directions, and the failure rate of general rigid couplings is relatively high;

[0009] Sixth, when the load end and the balance end are seriously mismatched, the driving rope is easy to slip

[0010] The above six factors have restricted the development of balance-balanced vertical pumping units, and it is urgent to develop a vertical pumping unit that is more suitable for field application to replace the existing models

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