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Self-adaptive counterweight structure of beam-pumping unit

A beam pumping unit, self-adaptive technology, applied in the direction of liquid variable capacity machinery, mechanical equipment, machine/engine, etc., can solve the problems of cumbersome application and low efficiency, and achieve reduced damage, convenient installation, and simple appearance Effect

Pending Publication Date: 2019-05-03
SHANGHAI YINGLUO ELECTROMECHANICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the technology in the above-mentioned patent can achieve the purpose of adjusting the center of gravity, saving electric energy and reducing energy consumption, it has the disadvantages of low efficiency and cumbersome application after practical application. Based on this, we have carried out the upgrading and transformation of the equipment

Method used

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  • Self-adaptive counterweight structure of beam-pumping unit
  • Self-adaptive counterweight structure of beam-pumping unit
  • Self-adaptive counterweight structure of beam-pumping unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 This embodiment is a new type of beam pumping unit. An adaptive counterweight structure is arranged at one end of the pumping unit. one end. The middle part of the beam 2 is arranged on the bracket 4, the bottom of the bracket 4 is fixed on the base 5, and a motor 8 is also arranged on the base 5, and the motor 8 drives the speed reducer 7 to move, and then drives the connecting rod 6 to move, and the connecting rod 6 The other end is connected to the end of the beam 2 close to the self-adaptive counterweight structure 3, thereby driving the beam 2 to move on the bracket 4. The above-mentioned self-adaptive counterweight structure plays the role of being able to adjust the size of the force arm by changing the position, thereby helping to increase the pulling force of the pumping unit and reducing the impact caused by the descent.

[0029] Such as figure 2 As shown, the self-adaptive counterweight structure includes a box body 301, a counterweight 3...

Embodiment 2

[0038] This embodiment is also an adaptive counterweight structure of a beam pumping unit, and the self-adapting counterweight structure is arranged on the end of the beam of the pumping unit away from the donkey head. Such as Figure 5 As shown, the self-adaptive counterweight structure includes a box body 301, a counterweight 303, a left spring 302, a right spring 304 and a track 305, and the box 301 is provided with a counterweight 303, a left spring 302, a right Spring 304 and track 305, described counterweight 303 is movably placed on track 305, and this track 305 is laid on the top and the bottom in described casing 301 respectively, one end of described left spring 302 and right spring 304 One end of the spring 304 is fixed on both sides of the counterweight 303 oppositely, the other end of the left spring 302 is fixed on the end face of the inner side of the box body 301, and the other end of the right spring 304 is fixed on the end face of the opposite side in the box...

Embodiment 3

[0042] This embodiment is also an adaptive counterweight structure of a beam pumping unit. The self-adaptive counterweight structure is arranged on the end of the beam of the pumping unit away from the donkey head. The self-adaptive counterweight structure includes a box body, Counterweight, left spring, right spring and track, are provided with counterweight, left spring, right spring and track in described casing, described counterweight is movably placed on track, and this track is laid on In the bottom of the box, one end of the left spring and one end of the right spring are respectively fixed on both sides of the counterweight relatively, the other end of the left spring is fixed on the end surface of one side in the box, and the other end of the right spring Fixed on the end face on the opposite side of the box. The counterweight placed on the track moves left and right under the action of gravity to increase or decrease the size of the force arm when the beam swings up...

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Abstract

The invention relates to a self-adaptive counterweight structure of a beam-pumping unit. The self-adaptive counterweight structure is arranged at the end, far away from a horsehead, of a walking beamof the beam-pumping unit, and comprises a box body, a counterweight, a left spring, a right spring and a track. The counterweight, the left spring, the right spring and the track are arranged in the box body. The counterweight is movably arranged on the track, and the track is laid at the bottom of the interior of the box body. One end of the left spring and one end of the right spring are oppositely and fixedly arranged on the two sides of the counterweight correspondingly, the other end of the left spring is fixed to the end face of one side of the interior of the box body, and the other endof the right spring is fixed to the end face of the opposite side of the interior of the box body. When the walking beam swings up and down, the counterweight which is arranged on the track moves leftwards and rightwards under the action of the gravity so as to increase or reduce the value of the arm of force, and the left spring and the right spring are stretched or compressed to achieve buffering. By the adoption of the self-adaptive counterweight structure of the beam-pumping unit, the purpose of reducing the energy consumption is achieved, the reverse power generation phenomenon can alsobe eliminated, and the equipment damage rate is reduced.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to an adaptive counterweight structure used on a beam pumping unit. Background technique [0002] The beam pumping unit is widely used in oil production equipment in oil fields due to its simple structure and durable skin. In order to reduce the power of the driving motor in the beam pumping unit, a counterweight structure will be designed. The counterweight structure helps the motor output power to lift the sucker rod during the upstroke of the pumping unit; absorbs the potential energy of the sucker rod during the downstroke, increases its own potential energy, and realizes energy recovery. [0003] The counterweight structure of the traditional pumping unit is relatively fixed when the pumping unit is working. In the initial stage of the upstroke, the output of the counterweight will exceed the load required by the sucker rod, which will drive the motor to "reverse power gener...

Claims

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Application Information

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IPC IPC(8): F04B47/14E21B43/00
Inventor 徐建新李勇
Owner SHANGHAI YINGLUO ELECTROMECHANICAL TECH CO LTD
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