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Hydraulic transmission beam-pumping unit

A beam pumping unit and hydraulic transmission technology, which is applied in the fields of production fluids, wellbore/well components, earth-moving drilling, etc. The effect of reducing the impact on the power grid, improving the system reliability and the life of the whole machine, and low cost

Inactive Publication Date: 2013-12-11
CNPC BOHAI EQUIP MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pumping unit with this configuration needs a strong current when it starts, which will cause a certain impact on the power grid, and also have a certain impact on the service life of the transmission device and the whole system

Method used

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  • Hydraulic transmission beam-pumping unit

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 The shown hydraulic transmission beam pumping unit includes a base 1, a bracket 2, a crank 3, a rope hanger 4, a crank balance weight 5, a donkey head 6, a beam 7, a central bearing seat 8, and a connecting rod 9. Beam 10, tail bearing seat 11, beam balance weight 12, crank pin 13, hydraulic transmission device 14, operating platform 15, brake 16, the hydraulic transmission device 14 includes a motor, a hydraulic coupling and a reduction device , the hydraulic transmission device 14 is connected with the base 1 by bolts, the transmission output shaft of the reduction device is connected with the crank 3 through an oblique key, and the end bolts are locked, and the tail of the base 1 is provided with an operating platform 15, which is fixed on the On the base 1, the operating platform 15 is arranged under the m...

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PUM

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Abstract

The invention discloses a hydraulic transmission beam-pumping unit in the technical field of oil pumping unit apparatuses. The hydraulic transmission beam-pumping unit comprises a base, a support, a crank, a polished rod eye, a crank balancing weight, a horse head, a walking beam, a central bearing block, a connection rod, a cross beam, a tail bearing block, a walking beam balancing weight, a crank pin, a hydraulic transmission device and a brake, wherein the hydraulic transmission device comprises a motor, a hydraulic coupler and a speed reducer, and the power transmission process of the hydraulic transmission device is as follows: the motor of the hydraulic transmission device directly drives the hydraulic coupler, and the hydraulic coupler drives the speed reducer. The hydraulic transmission beam-pumping unit disclosed by the invention has the advantages that the flexible transmission of power is realized, functions of slowing down impaction and isolating torsion and shock are achieved, the impact load borne by an oil pumping unit is largely reduced, the transmission efficiency of the oil pumping unit is effectively improved, the system reliability of the oil pumping machine is improved, the service life of the whole machine is prolonged, the performances of the oil pumping unit are improved, and the energy consumption of the oil pumping unit is reduced.

Description

technical field [0001] The invention relates to the technical field of pumping unit equipment. Background technique [0002] With the continuous development of oil extraction technology, various oil extraction equipment emerge in endlessly. However, the beam pumping unit has been widely used due to its simple structure, durable skin, convenient operation and maintenance, etc., and has always occupied the dominant position in the ground oil production equipment with rod pumps. The pumping unit is subjected to periodic alternating impact loads during the working process. This load characteristic requires that the drive motor of the pumping unit must be selected with sufficient margin to ensure that the pumping unit can be overcome when it is started with load. Large moment of inertia meets the starting requirements. Therefore, the selection of motor capacity is generally too large, and the load matching is unreasonable. [0003] The currently used beam pumping unit includes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
Inventor 张子忠樊建博李德伟王连云苏晓辉杨继忠王丽王栋蒋幽君
Owner CNPC BOHAI EQUIP MFG