阅读说明：本技术 一种抽油机平衡节能联动机构 (Balanced energy-conserving link gear of beam-pumping unit ) 是由 赵国祥 范夫勇 刘伟超 陈湘陵 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种抽油机平衡节能联动机构,包括一用于驱动抽油机的抽油杆上、下运行的动力装置,动力装置的一侧设置有用于对抽油杆上行和下行时的力进行平衡的配重联动平衡装置；动力装置包括滚筒总成,滚筒总成由动力总成驱动转动,滚筒总成上缠绕布设有抽油软质光杆和联动平衡牵引软杆,抽油软质光杆与抽油杆固定连接,联动平衡牵引软杆与配重联动平衡装置连接,本发明采用该抽油机平衡节能联动机构能够使抽油机的整机高度缩小至安全作业范围内,从整机结构上奠定了安全生产条件,并且采用了滚筒总成水平牵动的动力对称平衡系统,总电机的功耗与同型号常规游梁式抽油机相比,节能50%以上,可大大降低生产成本。(The invention discloses a balance energy-saving linkage mechanism of an oil pumping unit, which comprises a power device for driving an oil pumping rod of the oil pumping unit to run up and down, wherein a counterweight linkage balancing device for balancing the force of the oil pumping rod during the up-and-down movement is arranged on one side of the power device; the power device comprises a roller assembly, the roller assembly is driven by the power assembly to rotate, the roller assembly is wound with a soft oil pumping polished rod and a linkage balance traction soft rod, the soft oil pumping polished rod is fixedly connected with an oil pumping rod, and the linkage balance traction soft rod is connected with a counterweight linkage balancing device.)

1. The utility model provides a balanced energy-conserving link gear of beam-pumping unit which characterized in that: the device comprises a power device (3) for driving a sucker rod (2) of the pumping unit to move up and down, wherein a counterweight linkage balancing device (4) for balancing the force of the sucker rod (2) during ascending and descending is arranged on one side of the power device (3);

the power device (3) comprises a roller assembly, the roller assembly is driven by the power assembly (305) to rotate, a soft oil pumping polished rod (303) and a linkage balance traction soft rod (304) are wound on the roller assembly, the soft oil pumping polished rod (303) is fixedly connected with the oil pumping rod (2), and the linkage balance traction soft rod (304) is connected with the counterweight linkage balancing device (4).

2. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 1, characterized in that: the soft oil pumping polished rod (303) is wound and arranged in the middle of the roller assembly, the linkage balance traction soft rods (304) are respectively arranged on the roller assembly and positioned on two sides of the soft oil pumping polished rod (303), and the winding directions of the soft oil pumping polished rod (303) and the linkage balance traction soft rod (304) are opposite.

3. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 2, characterized in that: and a front transition wheel (301) and a rear transition wheel (302) for guiding the soft oil pumping polished rod (303) and the linkage balance traction soft rod (304) to move and reverse are respectively arranged on two sides of the roller assembly.

4. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 3, characterized in that: the drum assembly comprises a central shaft (307), a drum main body (306) is movably sleeved on the central shaft (307), and the central shaft (307) is in transmission connection with the drum main body (306).

5. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 4, characterized in that: the central shaft (307) is a spline shaft, a spline hole matched with the spline of the central shaft (307) for use is formed in the middle of the roller body (306), the roller body (306) is sleeved on the central shaft (307) through the spline hole, and the roller body (306) is in transmission connection with the central shaft (307) through spline connection.

6. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 5, characterized in that: a first groove (308) which is spirally arranged clockwise is formed in the position, close to the middle of the outer surface of the roller main body (306), and the first groove (308) is used for winding the soft oil pumping polished rod (303).

7. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 6, characterized in that: and two sides of the outer surface of the roller main body (306) positioned in the first groove (308) are respectively provided with a second groove (309) which is spirally arranged anticlockwise, and the second grooves (309) are used for winding the linkage balance traction soft rod (304).

8. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 7, characterized in that: the counterweight linkage device (4) comprises a counterweight box (401) arranged below the rear transition wheel (302), and two symmetrically arranged pulleys (402) are fixedly arranged on the counterweight box (401).

9. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 8, characterized in that: a fixed mounting point (403) is arranged above the weight box (401) and on one side of the rear transition wheel (302).

10. The balanced energy-saving linkage mechanism of the oil pumping unit according to claim 9, characterized in that: one end of the linkage balance traction soft rod (304) far away from the roller main body (306) is fixedly connected with a fixed mounting point (403) by bypassing the rear transition wheel (302) and the pulley (402).

Technical Field

The invention relates to an oil pumping unit, in particular to a balance energy-saving linkage mechanism of the oil pumping unit, and belongs to the technical field of oil extraction machinery.

Background

In recent years, domestic pumping equipment is vigorously developed, and various pumping units such as beam-pumping units, tower-type pumping units and the like appear.

A beam-pumping unit (commonly called as a head knocking machine) is petroleum extraction equipment which is designed at the earliest in the United states in the twentieth century and the thirty years, and the concrete structure of the beam-pumping unit comprises a speed reducer, a crank connecting rod mounting seat, a crank, a connecting rod, a motor, a conveyor belt, a balancing weight, a beam and other mechanisms.

The existing pumping unit can be used for oil extraction, but the whole structure is complex, the size is large, the height of the whole pumping unit exceeds 9.0 m, the risk of high-altitude operation exists, and the pumping unit is inconvenient to maintain and manage during field installation and well repairing operation.

And the upper and lower operation load weight of the sucker rod is unequal when carrying out liquid extraction to the oil well, the sucker rod is twice when going down when going up, and then the power of the motor output of the prototype itself is certain, and this power will accord with the power that the sucker rod goes up, and then when the sucker rod goes down, the power that its motor output compares the power that the sucker rod went down greatly, just can cause, the energy is a large amount of losses, and then can't solve the work balance problem of prototype at all, more can not solve the power consumption phenomenon in the motor work operation.

Disclosure of Invention

The invention aims to solve the main technical problem of providing a balanced energy-saving linkage mechanism of an oil pumping unit, which has the advantages of simple integral structure, small integral size, symmetrical and balanced power, simple assembly and construction, simple and convenient operation, reliable operation, energy conservation, safety and environmental protection.

In order to solve the technical problems, the invention provides the following technical scheme:

a balance energy-saving linkage mechanism of a pumping unit comprises a power device for driving a pumping rod of the pumping unit to move up and down, wherein a balance weight linkage balancing device for balancing the force of the pumping rod during ascending and descending is arranged on one side of the power device;

the power device comprises a roller assembly, the roller assembly is driven by the power assembly to rotate, a soft oil pumping polished rod and a linkage balance traction soft rod are wound on the roller assembly, the soft oil pumping polished rod is fixedly connected with the oil pumping rod, and the linkage balance traction soft rod is connected with the counterweight linkage balance device.

The following is a further optimization of the above technical solution of the present invention:

the soft oil pumping polished rod is wound and arranged in the middle of the roller assembly, the linkage balance traction soft rods are respectively arranged on the roller assembly and positioned on two sides of the soft oil pumping polished rod, and the winding directions of the soft oil pumping polished rod and the linkage balance traction soft rods are opposite.

Further optimization: and a front transition wheel and a rear transition wheel which are used for guiding the soft pumping polished rod and the linkage balance traction soft rod to move and reverse are respectively arranged on two sides of the roller assembly.

Further optimization: the drum assembly comprises a central shaft, a drum main body is movably sleeved on the central shaft, and the central shaft is in transmission connection with the drum main body.

Further optimization: the center pin is the integral key shaft, and the splined hole that is used by the spline fit with the center pin is seted up in the middle part of cylinder main body, and cylinder main body passes through the splined hole cover to be established on the center pin, and realizes through splined connection that the transmission of cylinder main body and center pin is connected.

Further optimization: a first groove which is spirally arranged clockwise is formed in the position, close to the middle of the outer surface of the roller body, and the first groove is used for winding the soft pumping polished rod.

Further optimization: and second grooves which are distributed in a counterclockwise spiral manner are respectively formed in the two sides of the first groove on the outer surface of the roller main body, and the second grooves are used for winding the linkage balance traction soft rod.

Further optimization: the counterweight linkage device comprises a counterweight box arranged below the rear transition wheel, and two symmetrically arranged pulleys are fixedly arranged on the counterweight box.

Further optimization: and a fixed mounting point is arranged above the weight box and on one side of the rear transition wheel.

Further optimization: one end of the linkage balance traction soft rod far away from the roller main body is fixedly connected with the fixed mounting point by bypassing the rear transition wheel and the pulley.

By adopting the technical scheme, when the rotary drum is used, the power assembly outputs power to drive the central shaft to drive the rotary drum main body to move forwards and backwards.

When the roller body rotates, the soft polish rod wound on the roller body rotates along with the roller body to form the up-and-down motion of the soft polish rod, so that the sucker rod connected to the lower end of the soft polish rod moves up and down in an oil well, and the purpose of pumping oil is achieved.

When the roller body rotates, the linked balance traction soft rod wound on the roller body reversely rotates along with the roller, so that the weight box is driven to move up and down, the weight box can move up and down to generate a counterweight effect, and power consumption of the power assembly is saved.

By adopting the technical scheme, the invention has the advantages of ingenious design and reasonable structure, and the balance energy-saving linkage mechanism of the oil pumping unit can reduce the height of the whole oil pumping unit to be within a safe operation range, thereby laying safe production conditions on the structure of the whole oil pumping unit.

Compared with the power device of the conventional beam pumping unit, the balance energy-saving linkage mechanism of the pumping unit removes a speed reducer crank connecting rod counterweight assembly of a prototype, saves mechanisms such as a beam, a cross beam and the like, and thoroughly solves the source of energy waste of a power transmission system, thereby saving the weight of the prototype which is approximately one half and greatly reducing the cost.

And a dynamic symmetrical balance system driven by the roller assembly horizontally is adopted, so that the power consumption of the total motor is saved by more than 50% compared with that of a conventional beam pumping unit of the same type, and the production cost can be greatly reduced.

The balance energy-saving linkage mechanism of the oil pumping unit can be automatically completed from the start of the oil pumping unit to the stop of operation without the assistance of external hoisting equipment, and has the characteristics of simple and convenient operation, reliable operation, safety and environmental protection, and the maintenance rate is only one fifth of that of the original machine.

The invention is further illustrated with reference to the following figures and examples.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural diagram of a roller assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a roller body according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of top-stroke dead center of a power plant in an embodiment of the present invention;

FIG. 6 is a schematic diagram of a bottom dead center of a power plant according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a balance energy-saving linkage mechanism installed on a pumping unit in the embodiment of the invention.

In the figure: 1-body; 11-a top platform; 2, pumping rod; 3-a power plant; 301-front transition wheel; 302-rear transition wheel; 303-pumping soft polish rod; 304-linkage balance traction soft rod; 305-a powertrain; 306-a cylinder body; 307-central axis; 308-a first trench; 309-a second trench; 310-a bearing seat; 311-a brake; 312-a sprocket; 313-rope blocking frame; 4-a counterweight linkage; 401-weight box; 402-a pulley; 403-fixed mounting points; 5-moving the device.

Detailed Description