CN104213879A - Cable-free balance long-stroke oil pumping unit - Google Patents
Cable-free balance long-stroke oil pumping unit Download PDFInfo
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- CN104213879A CN104213879A CN201410453437.0A CN201410453437A CN104213879A CN 104213879 A CN104213879 A CN 104213879A CN 201410453437 A CN201410453437 A CN 201410453437A CN 104213879 A CN104213879 A CN 104213879A
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Abstract
The invention is suitable for the technical field of oilfield oil pumping units, and provides a cable-free balance long-stroke oil pumping unit. The cable-free balance long-stroke oil pumping unit comprises an oil pumping rod, a bracket, a motor assembly, a connecting rod, a crank, a vertical guide groove and a hinged parallelogram framework, wherein two opposite edge borders extend reversely by certain distances respectively; one end point is taken as a suspension point, and the other end point is taken as a balance point; the oil pumping rod is connected to the suspension point; a slide block is arranged in the vertical guide groove; a counterweight block is fixed on the slide block; the counterweight block is connected to the balance point; two intersection points exist between a connecting line of the suspension point and the balance point and two non-prolonged borders respectively; the bracket is supported on one of the intersection points; one end of the connecting rod is hinged to the movable end of the crank, and the other end of the connecting rod is hinged to any of the two non-prolonged borders. By adopting the equipment, a long oil pumping stroke is realized; moreover, the counterweight block is small in size and is balanced in mass, and a cable is not needed; the parallelogram framework can rotate stably in a balanced manner, so that efficient and stable oil pumping work is ensured.
Description
Technical field
The invention belongs to oil-field oil pumper technical field, particularly relate to a kind of without cable balance long stroke oil pump.
Background technology
In current world wide, sucker rod pumping equipment is mainly beam pumping unit (being commonly called as the machine of kowtowing, hereinafter referred to as the machine of kowtowing), accounts for about 80%; Other 20% is without beam pumping unit (as tower-type pumping unit, linear motor type oil pumper, hereinafter referred to as linear oil pump unit) and other is without bar oil pumper.
The machine principle of kowtowing as shown in Figure 1, machine structure of kowtowing is simple, type of drive is reliable, but the balancing weight load 100 of this oil pumper can not with sucker rod load 200 complete equipilibrium, and by the restriction of mechanical properties, the two ends additional dynamic load imbalance such as caused by acceleration change makes energy consumption aggravate, also can due to the constraint at mechanism driving angle, making oil pumper stroke limited, is the inefficient equipment of a kind of Gao Neng Mao, so still have unremitting the optimizing it of a large amount of scientific workers so far.
Linear oil pump unit principle as shown in Figure 2, because suspension point load (i.e. sucker rod load 200) and balancing weight load 100 can complete equipilibriums, the machine energy-conservation about 40% so linear oil pump unit ratio is kowtowed.But because linear oil pump unit type of drive unreliable (as frequent in motor commutation etc.) causes the easy disorderly closedown of equipment, equipment downtime will cause the situations such as oil well is sealed with wax, sand seal and cancel.In addition, the connection of linear oil pump unit balance must use hawser, and the application life of hawser is limited, so in order to the safety of oil well, seldom adopt this technology now.
Disclose a kind of four-bar pumping unit (patent No.: 2,008 1 0197205.8) at present, operating principle as shown in Figure 3, which overcome the defect that beam pumping unit load can not balance, remain beam pumping unit reliably type of drive, but this technology needs to add the balance weight load 300 that is several times as much as sucker rod load 200 and drive block 400 under long stroke technological requirement, and (multiple depending on suspension point stroke and drive block stroke) carrys out complete equipilibrium sucker rod load simultaneously.In order to alleviate the weight of balance weight, needing to adopt running block technology, therefore needing to use hawser, due to tensile strength and the life problems of hawser, there is potential safety hazard.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of without cable balance long stroke oil pump, be intended to solve balance weight load and drive block that existing four-bar pumping unit needs large quality, and owing to needing hawser to make equipment work run the technical problem that there is potential safety hazard.
The present invention adopts following technical scheme:
Described without cable balance long stroke oil pump, comprise sucker rod, support, electric machine assembly, connecting rod, be arranged on the crank on described electric machine assembly output shaft, described oil pumper also comprises a hinged parallelogram lever, described parallelogram lever has four frames, two opposite side frames are wherein had respectively to extend a segment distance to different direction, one of them end points is suspension point, another end points is equalization point, described sucker rod is connected on described suspension point, described oil pumper also comprises vertically-guided groove, described vertically-guided groove is provided with the slide block of coupling, described slide block is fixed with balancing weight, described balancing weight is connected on described equalization point, respectively an intersection point is there is between the line of described suspension point and equalization point and two frames do not extended, described stent support is wherein on an intersection point, the movable end of described connecting rod one end and described crank is hinged, the other end is hinged on two arbitrary frames do not extended in frame.
Further, in parallelogram lever, do not extend frame parallel direction two prolongation frame parallel directions and/or two and some hinge bars are set.
Further, the tie point of described connecting rod and frame is drive point, and described drive point is provided with multiple, and described connecting rod is connected on one of them drive point.
The invention has the beneficial effects as follows: structure of the present invention can accomplish long stroke of pumping, and the little mass balance of balancing weight and without the need to hawser; Suspension point position up-and-down movement during work, suspension point is contrary relative to the equalization point direction of motion, and balancing weight quality complete equipilibrium can fall sucker rod quality of loads, and drive point position is convenient can be variable, makes to become ginseng easily simple.Structure of the present invention is simple, parallelogram lever balanced rotation, ensures efficient stable pumping operation.
Accompanying drawing explanation
Fig. 1 is machine principle schematic of kowtowing;
Fig. 2 is linear oil pump unit principle schematic;
Fig. 3 is four-bar pumping unit principle schematic;
Fig. 4 is the structure chart without cable balance long stroke oil pump that the embodiment of the present invention provides;
Fig. 5 is a kind of parallelogram lever schematic diagram;
Fig. 6 is another kind of parallelogram lever schematic diagram;
Fig. 7 is a kind of parallelogram lever schematic diagram being provided with hinge bar;
Fig. 8 is the another kind of parallelogram lever schematic diagram being provided with hinge bar.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Fig. 4 shows the structure without cable balance long stroke oil pump that the embodiment of the present invention provides, and illustrate only the part relevant to the embodiment of the present invention for convenience of explanation.
The present embodiment provide without cable balance long stroke oil pump, comprise sucker rod 2, support 11, electric machine assembly 10, connecting rod 8, be arranged on the crank 9 on described electric machine assembly output shaft, described oil pumper also comprises a hinged parallelogram lever, described parallelogram lever has four frames, graphical indicia is 3-6 respectively, here frame 3, 6 is one group of parallel frame, frame 4, 5 organize parallel frame for another, two opposite side frames are wherein had respectively to extend a segment distance to different direction, one of them end points is suspension point S1, another end points is equalization point S2, described sucker rod 2 is connected on described suspension point S1, described oil pumper also comprises vertically-guided groove 12, described vertically-guided groove is provided with the slide block (not shown) of coupling, described slide block is fixed with balancing weight 7, described balancing weight 7 is connected on described equalization point S2, respectively an intersection point is there is between the line of described suspension point S1 and equalization point S2 and two frames do not extended, described support 11 is supported on one of them intersection point 0, the movable end of described connecting rod 8 one end and described crank 9 is hinged, the other end is hinged on two arbitrary frames do not extended in frame, the tie point of described connecting rod and frame is drive point.Balancing weight on described equalization point and slide block are constrained in the vertically-guided groove 12 of vertical direction, can only up-and-down movement.
In Fig. 4, frame 3 and frame 6 are for extending frame, and frame 4 and frame 5 be not for extend frame, and frame 3 is to downward-extension one segment distance, frame 6 upwards extends a segment distance, the extension end points of frame 3 is suspension point, and the extension end points of frame 6 is equalization point, and the line of suspension point and equalization point and frame 5 and frame 4 respectively exist an intersection point, choosing one of them intersection point is the strong point, described stent support is on the described strong point, and such parallelogram lever, can free balanced rotation around the described strong point.According to principle of moment balance, balancing weight quality can be calculated after obtaining sucker rod quality of loads, make to offset completely the moment of the strong point 0 both it.During specific works, when electric machine assembly 10 (generally including drive motors and reduction box) driving crank 9 rotates, crank 9 is by being hinged on connecting rod 8 action on frame 5, connecting rod 8 drives parallelogram lever, under the guide and limit effect of vertically-guided groove 12, balancing weight can freely up and down move, and realizes like this driving sucker rod to move both vertically up and down, completes energy-conservation, efficient pumping operation.
It should be noted that, Fig. 4 only describes a kind of implementation, here two concrete prolongation frames are not limited, the bearing of trend extending frame is not limited yet, and the prolongation end points that suspension point and equalization point can extend frames at two is taken up an official post, meaning is chosen, simultaneously the strong point of support can be positioned at any one and not extend on frame (but fulcrum must on the connecting line of suspension point and equalization point), also has the drive point of connecting rod can be positioned at one equally and does not extend on frame.Enumerate two kinds of concrete parallelogram lever structures below.
Fig. 5 is a kind of parallelogram lever schematic diagram, in diagram, frame 3 and frame 6 are a pair prolongation frame, and frame 4 and frame 5 are for another is to not extending frame, frame 3 is to downward-extension one segment distance, frame 6 upwards extends a segment distance, and one of them extends end points is suspension point, and another extends end points is equalization point, the connecting line of suspension point and equalization point and frame 4 and frame 5 have two intersection points, namely the strong point has two, is respectively 01,02, can choose wherein arbitrary strong point.
Fig. 6 is another kind of parallelogram lever schematic diagram, in diagram, frame 4 and frame 5 are a pair prolongation frame, and frame 3 and frame 6 are for another is to not extending frame, frame 4 extends a segment distance left, frame 5 extends a segment distance to the right, and one of them extends end points is suspension point, and another extends end points is equalization point, the connecting line of suspension point and equalization point and frame 3 and frame 6 have two intersection points, namely the strong point has two, is respectively 01,02, can choose wherein arbitrary strong point.
In addition, preferably, described drive point is provided with multiple, and described connecting rod is connected on one of them drive point.In such as Fig. 4, drive point has 3, is respectively a, b, c, and described connecting rod is connected on drive point a.According to the change requirement of oil pumping stroke, connecting rod can be arranged on corresponding drive point, to realize becoming ginseng technique easily.
Finally, consider from the rigidity of structure and intensity, preferably, in parallelogram lever, do not extend frame parallel direction two prolongation frame parallel directions and/or two and some hinge bars 14 are set, the parallelogram that parallelogram lever is divided into several shorter, less.In Fig. 7, extend frame parallel direction at two and some hinge bars are set, be divided into several parallelogram by perpendicular for parallelogram lever.In fig. 8, do not extend frame parallel direction at two and some hinge bars are set, be divided into several parallelogram horizontal for parallelogram lever.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. one kind without cable balance long stroke oil pump, described oil pumper comprises sucker rod, support, electric machine assembly, connecting rod, be arranged on the crank on described electric machine assembly output shaft, it is characterized in that, described oil pumper also comprises a hinged parallelogram lever, described parallelogram lever has four frames, two opposite side frames are wherein had respectively to extend a segment distance to different direction, one of them end points is suspension point, another end points is equalization point, described sucker rod is connected on described suspension point, described oil pumper also comprises vertically-guided groove, described vertically-guided groove is provided with the slide block of coupling, described slide block is fixed with balancing weight, described balancing weight is connected on described equalization point, respectively an intersection point is there is between the line of described suspension point and equalization point and two frames do not extended, described stent support is wherein on an intersection point, the movable end of described connecting rod one end and described crank is hinged, the other end is hinged on two arbitrary frames do not extended in frame.
2. as claimed in claim 1 without cable balance long stroke oil pump, it is characterized in that, in parallelogram lever, do not extend frame parallel direction two prolongation frame parallel directions and/or two and some hinge bars are set.
3. as claimed in claim 1 or 2 without cable balance long stroke oil pump, it is characterized in that, the tie point of described connecting rod and frame is drive point, and described drive point is provided with multiple, and described connecting rod is connected on one of them drive point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453437.0A CN104213879A (en) | 2014-09-05 | 2014-09-05 | Cable-free balance long-stroke oil pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453437.0A CN104213879A (en) | 2014-09-05 | 2014-09-05 | Cable-free balance long-stroke oil pumping unit |
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| CN104213879A true CN104213879A (en) | 2014-12-17 |
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| CN201410453437.0A Pending CN104213879A (en) | 2014-09-05 | 2014-09-05 | Cable-free balance long-stroke oil pumping unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975825A (en) * | 2015-07-10 | 2015-10-14 | 常依懿 | Parallelogram-frame fully-balanced long-stroke pumping unit |
| CN116638281A (en) * | 2023-05-10 | 2023-08-25 | 泰安轻松表计有限公司 | Device and method for realizing complete linear motion of controlled point on shaking component |
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| US20080128124A1 (en) * | 2005-01-17 | 2008-06-05 | Chengqun Jin | Pumping and Repairing Unit |
| CN101368478A (en) * | 2008-10-09 | 2009-02-18 | 武汉工程大学 | Four-link type oil pumping machine |
| CN101737023A (en) * | 2010-02-08 | 2010-06-16 | 武汉明侠机电设备有限公司 | Energy storage type four-bar pumping unit |
| CN203702095U (en) * | 2013-07-18 | 2014-07-09 | 向忠祥 | Long-stroke oil pumping unit with double-walking beam |
| CN204041026U (en) * | 2014-09-05 | 2014-12-24 | 张向明 | A kind of without cable balance long stroke oil pump |
-
2014
- 2014-09-05 CN CN201410453437.0A patent/CN104213879A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080128124A1 (en) * | 2005-01-17 | 2008-06-05 | Chengqun Jin | Pumping and Repairing Unit |
| CN101368478A (en) * | 2008-10-09 | 2009-02-18 | 武汉工程大学 | Four-link type oil pumping machine |
| CN101737023A (en) * | 2010-02-08 | 2010-06-16 | 武汉明侠机电设备有限公司 | Energy storage type four-bar pumping unit |
| CN203702095U (en) * | 2013-07-18 | 2014-07-09 | 向忠祥 | Long-stroke oil pumping unit with double-walking beam |
| CN204041026U (en) * | 2014-09-05 | 2014-12-24 | 张向明 | A kind of without cable balance long stroke oil pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975825A (en) * | 2015-07-10 | 2015-10-14 | 常依懿 | Parallelogram-frame fully-balanced long-stroke pumping unit |
| CN116638281A (en) * | 2023-05-10 | 2023-08-25 | 泰安轻松表计有限公司 | Device and method for realizing complete linear motion of controlled point on shaking component |
| CN116638281B (en) * | 2023-05-10 | 2024-03-19 | 泰安轻松表计有限公司 | Device and method for realizing complete linear motion of controlled point on shaking component |
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Application publication date: 20141217 |