CN1179510A - Pumping unit - Google Patents
Pumping unit Download PDFInfo
- Publication number
- CN1179510A CN1179510A CN 97118141 CN97118141A CN1179510A CN 1179510 A CN1179510 A CN 1179510A CN 97118141 CN97118141 CN 97118141 CN 97118141 A CN97118141 A CN 97118141A CN 1179510 A CN1179510 A CN 1179510A
- Authority
- CN
- China
- Prior art keywords
- head sheave
- joint
- flexible element
- chain
- guiding head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 239000003129 oil well Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- 230000005484 gravity Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- General Details Of Gearings (AREA)
Abstract
A pumping unit belonging to pertoleum production machine has an electric motor running directionally, which drives via transmission unit and gear speed reducer two endless chains to run directionally. A cyclic switching axle having characteristic chain links at both ends and connected to chain and connector for hanging flexible part are installed between two chains. One of flexible parts is connected via guiding head pulley to smooth rod and another is connected via ground pulley and small guiding head puller to balance weight. Said cyclic switching axle does up-down reciprocating movement, which drive the smooth rod to pump oil.
Description
Pumping unit belongs to petroleum production machinery.
At present, the used pumping unit of oilfield is varied, Cheng Shu machine is a beam pumping unit the most, the motor direction operation of this pumping unit, through belt gearing, gear reducer and connecting rod, drive the bearing pin of walking beam on bracket and swing repeatedly, by suspension arrangement, jamming rod device, polished rod, sucker rod and balancing weight Compositional balance actuating system, make the down-hole reciprocating oil pump carry out oil pumping work again.These facility have simply, and durable, fault is few, and is easy to use.But because this machine belongs to simple harmonic motion mechanism, mechanical efficiency is low, and the system balancing degree is poor, and power consumption is big, and the stroke lengthening is limited, poor stability shortcomings such as (referring to the viscous oil area operation).Therefore, people are seeking comparatively ideal new pumping unit always for many years.
The objective of the invention is to overcome the above-mentioned deficiency of existing beam pumping unit, a kind of efficient, energy-conservation pumping unit is provided.
Above-mentioned purpose is achieved through the following technical solutions: this pumping unit is by motor, belt gearing, gear reducer, oil well pump and by draft hitch, the stock device, polished rod, sucker rod, the equilibrating force system that balancing weight constitutes, form, the motor of direction operation (1) links by belt gearing (2) and gear reducer (3), gear reducer (3) adopts two ptos (29), (29 '), drive sprocket (4) is housed respectively on it, (4 '), two drive sprockets (4), (4 ') and two driven sprockets (13), closed chain (5) is housed respectively between (13 '), (5 '), at two chains (5), an assembly that is made of circulation reversing shaft (6) and suspension flexure joint is housed between (5 '), wherein, circulation reversing shaft (6) two axial ends chain link respectively with chain (5), (5 ') are linked together, hanging stick flexible element (8) pile warp guiding head sheave (12) on the hanging stick flexible element joint (7), connect with polished rod (9) by suspension arrangement (11) and stock device (10), suspending weight on the suspending weight flexible element joint (24) is scratched to part (25) pile warp land wheel (26) and little guiding head sheave (21), join by counterweight joint (22) and balancer weight (23), guiding head sheave (12) and little guiding head sheave (21) are contained on the girder (16) of derrick top, the head sheave that leads (12) can by head sheave face upward bow mechanism controls its steeve or reset.
The present invention adopts the commutation of freely-supported circulation reversing shaft mechanism to carry out work.Its working procedure is: when motor (1) direction operation, by belt gearing (2), the gear reducer of two-way two-stage (3) orders about two drive sprockets (4), (4 ') on two ptos (29), (29 ') side by side, drives two closed chains (5), (5 ') and two driven sprockets (13), (13 ') direction operation.When being contained in the circulation reversing shaft (6) that has specific links between two closed chains (5), (5 '), between drive sprocket (4), (4 ') and driven sprocket (13), (13 '), pump with chain (5), (5 ') operation.Polished rod (9) connects with hanging stick flexible element joint (7) by hanging stick flexible element (8) pile warp guiding head sheave (12), balancer weight (23) is connected with suspending weight flexible element joint (24) by suspending weight flexible element (25) the little guiding head sheave of pile warp (21), land wheel (26), thereby the power system of formation gravity relative equilibrium orders about polished rod (9) and balancer weight (23) is done rightabout to-and-fro motion.
The present invention can be common to 8 types, 10 types, 12 types and 14 type pumping units with a cover motor, retarder and suspension system, easily realizes 3m, 5m, 6m and 8m stroke, and jig frequency can reach 2.8～6min
-1, the also available auxiliary equipment that overlaps specification is in addition assembled 4 types, 5 types and 6 type pumping units.The present invention and beam pumping unit contrast, and its performance index see the following form:
| Sequence number | The contrast project | Type of the present invention | Walking beam machine type |
| ????1 | Specified suspending point loading (tf) | 8，10，12，14 | ?8，10，12 |
| ????2 | Motor power (output) (kw) | 18.5～37 | ?30～75 |
| ????3 | Machine heavy (t) | 18.9～23 | ?22～40 |
| ????4 | The degree of balance (%) | 97～98 | ?70 |
| ????5 | Moment of torsion (knm) | 18～24 | ?37～125 |
| ????6 | Stroke (m) | 3，5，6，8 | ?2，4，3，5 |
| ????7 | Per unit area yield liquid power consumption (kwh) | 5.66 | ?13.1 |
Therefore the present invention, has suitable long stroke owing to adopt circulation commutation axis structure, degree of balance height, and good stability, the mechanical efficiency height, the pump efficiency height, energy-conservation, advantage such as the production fluid amount is big, and is easy to use.
Concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1 is the structural representation that proposes pumping unit according to the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is circulation reversing shaft and suspension flexure adapter assembly schematic representation;
Fig. 4 is the AA sectional view of Fig. 3;
Fig. 5 is the BB sectional view of Fig. 3;
Fig. 6 is the gear reducer structural representation.
Describe the details and the working condition of the concrete pumping unit that proposes according to the present invention in detail below in conjunction with accompanying drawing.
This machine comprises a motor (1), and it is the power source of this machine.Motor (1) reaches gear reducer (3) through transmission device with power.According to the structural requirement of this machine, gear reducer (3) adopts double two Room lower box structures, has hole (A) at the bottom of the case between two Room.Semiaxis (27), (27 ') symmetric arrangement are connected by coupling assembly (31) between them.Coupling assembly (31) can adopt chain type, tooth-like, conical friction coupling assembly, wherein the chain coupling assembly is made up of the chain coupling and the jack shaft of two different numbers of teeth, because its simple in structure being suitable for, cost is low, therefore, adopt chain coupling assembly less expensive, and easy arrangement is installed, although its precision is not high, also can satisfy this machine shaft coupling and phase modulation requirement.Semiaxis (27) is a power input shaft, and Brake drum (30) is equipped with in the outer end of semiaxis (27 ').Semiaxis (27), (27 ') reach motive power wheel output shaft (29), (29 ') by two cover two-stage driving gears (28), (28 ') with power, drive sprocket (4), (4 ') are equipped with in the inner of two ptos (29), (29 '), and hole (A) opens in drive sprocket (4), (4 ') and locate.The gear teeth of two-stage driving gear (28), (28 ') are the best to adopt Gothic, though difficulty of processing is slightly larger, transmission capacity is strong, and modulus is little, thereby, can make retarder, complete machine size and quality littler.Certainly adopt involute gear or master gear all can, just size and quality become big, adopt master gear especially, coaxality is difficult for guaranteeing.
To be this machine be converted to the critical component that work is carried out in the upper and lower to-and-fro motion of workpiece with the direction operation of motor for circulation reversing shaft (6) and suspension flexure joint.The suspension flexure joint is to be fixed together by hanging stick flexible element joint (7) and suspending weight flexible element joint (24), and an axis hole is established in the junction in the middle of it, and circulation reversing shaft (6) passes from this hole.There is specific links (outer plate that is equivalent to chain) at the two ends of circulation reversing shaft (6), promptly be split into groove with the mutual Spielpassung in chain (5) the internal segment outside, on the sidewall of groove, process and the center line of the reversing shaft that circulates (6) symmetrical, and with two holes that chain (5) joint square equates, the inner link sleeve hole at this hole and chain (5) two ends is hinged with bearing pin.Circulation reversing shaft (6) can adopt overall structure, makes compact overall structure small and exquisite, processes and guarantee precision easily.Divide body structure if adopt, guarantee strict phase accuracy and connect precision to increase difficulty.When circulation reversing shaft (6) makes the branch body structure, hanging stick flexible element joint (7) can make overall structure with suspending weight flexible element joint (24).Hanging stick flexible element (8) pile warp guiding head sheave (12), the one end connects with hanging stick flexible element joint (7), and the other end connects with polished rod (9) by suspension arrangement (11), jamming rod device (10).Suspending weight flexible element (25) one ends connect with suspending weight flexible element joint (24), and the other end pile warp land wheel (26), little guiding head sheave (12) connect with counterweight joint (22) on the balancer weight (23).Thereby form the power system of gravity relative equilibrium.
Because the chain link and the chain (5) at circulation reversing shaft (6) two ends are linked together, can make circulation 2 reversing shafts (6) and suspension flexure joint in closed chain (5) operation, upper and lower to-and-fro motion between drive sprocket and driven sprocket, thus under the gravity relative equilibrium power system effect that polished rod (9) and balancer weight (23) are constituted, carry out oil pumping work.
It is in recover the oil producing during workover eration that head sheave is faced upward the mechanism of bowing, and can abdicate required space, need not telephone-moving and finishes workover eration setting.Its structure is made up of bearing (14), leading block (18), worm type of reduction gearing (19).Guiding head sheave (12) is contained on the bearing (14), and bearing (14) is articulated on the girder (16) of derrick top with bearing pin (15).Adorn a worm type of reduction gearing (19) on the right side of girder (16), its output shaft is a reel (axle) (20), between bearing (14) and worm type of reduction gearing (19) leading block (18) is housed.Need steeve when being directed at wheel when shutting down maintenance, an end of standby hoist rope (17) is fixed on the reel (axle) (20) of worm type of reduction gearing (19) output shaft, and the other end is hung on the head sheave (12) that leads through leading block (18).Reel is just changeing rope woolding, so guiding head sheave (12) and bearing (14) are promptly steeved and energy self-marketing thereupon.When need guiding head sheaves (12) fall, make reel (20) counter-rotating, guiding head sheave (12) and bearing (14) they are restorable.This mechanism is time saving and energy saving, can improve the oil producing operation rate.
Claims (4)
1, pumping unit is by motor (1), belt gearing (2), gear reducer (3), oil well pump and by suspension arrangement, jamming rod device, polished rod, sucker rod, the equilibrating force system that balancing weight constitutes is formed, the motor (1) that it is characterized in that direction operation links by belt gearing (2) and gear reducer (3), gear reducer (3) adopts two ptos (29), (29 '), drive sprocket (4) is housed respectively on it, (4 '), two drive sprockets (4), (4 ') and two driven sprockets (13), closed chain (5) is housed respectively between (13 '), (5 '), at two chains (5), an assembly that is made of circulation reversing shaft (6) and suspension flexure joint is housed between (5 '), wherein, circulation reversing shaft (6) two axial ends chain link respectively with chain (5), (5 ') are linked together, hanging stick flexible element (8) pile warp guiding head sheave (12) on the hanging stick flexible element joint (7), connect with polished rod (9) by suspension arrangement (11) and stock device (10), suspending weight on the suspending weight flexible element joint (24) is scratched to part (25) pile warp land wheel (26) and little guiding head sheave (21), join by counterweight joint (22) and balancer weight (23), guiding head sheave (12) and little guiding head sheave (21) are contained on the girder (16) of derrick top, the head sheave that leads (12) can by head sheave face upward bow mechanism controls its steeve or reset.
2, pumping unit according to claim 1 art, it is characterized in that the said assembly that constitutes by circulation reversing shaft (6) and suspension flexure joint, its structure is: the suspension flexure joint is to be fixed together by hanging stick flexible element joint (7) and suspending weight flexible element joint (24), circulation reversing shaft (6) passes from suspending weight flexible element joint (24) and hanging stick flexible element joint (7) junction intermediate hole, the two ends of circulation reversing shaft (6) are provided with specific links and promptly are split into and chain (5) the internal segment mutual groove of Spielpassung then outward, on the sidewall of groove, process and the center line of the reversing shaft that circulates (6) symmetrical, and with two holes that chain (5) joint square equates, the inner link sleeve hole at this hole and chain (5) two ends is hinged with bearing pin.
3, pumping unit according to claim 1 and 2, it is characterized in that said gear reducer (3) adopts double two Room lower box structures, semiaxis (27), (27 '), two-stage gear transmission (28), (28 '), pto (29), (29 ') and drive sprocket (4), (4 ') of symmetric arrangement are housed in the casing, connect by coupling assembly (31) between semiaxis (27) and the semiaxis (27 ').Brake drum (30) is equipped with in the outer end of semiaxis (27 '), two-stage gear transmission (28), (28 ') are contained in respectively between semiaxis (27), (27 ') and pto (29), (29 '), drive sprocket (4), (4 ') are contained in the axle head of pto (29), (29 ') respectively, and place that the hole at the bottom of the case (A) locates between two Room.
4, pumping unit according to claim 1 and 2, the head sheave that it is characterized in that being used to rising the guiding head sheave is faced upward the mechanism of bowing and is made up of bearing (14), leading block (18), worm type of reduction gearing (19).Guiding head sheave (12) is contained on the bearing (14), bearing (14) is articulated on the girder (16), when need rise the guiding head sheave, one end of hoist rope (17) is fixed on the reel (axle) (20) of worm type of reduction gearing (19) output shaft, and the other end is hung on the guiding head sheave (12) through leading block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97118141 CN1079485C (en) | 1997-10-03 | 1997-10-03 | pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97118141 CN1079485C (en) | 1997-10-03 | 1997-10-03 | pumping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1179510A true CN1179510A (en) | 1998-04-22 |
| CN1079485C CN1079485C (en) | 2002-02-20 |
Family
ID=5174669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97118141 Expired - Fee Related CN1079485C (en) | 1997-10-03 | 1997-10-03 | pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1079485C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989728A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Pin shaft commutation type long stroke pumping unit |
| WO2021148876A1 (en) * | 2020-01-21 | 2021-07-29 | Apex Oilfield Equipment (Qingdao) Co., Ltd. | Lifting mechanism for belt-type pumping unit |
-
1997
- 1997-10-03 CN CN 97118141 patent/CN1079485C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989728A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Pin shaft commutation type long stroke pumping unit |
| WO2021148876A1 (en) * | 2020-01-21 | 2021-07-29 | Apex Oilfield Equipment (Qingdao) Co., Ltd. | Lifting mechanism for belt-type pumping unit |
| US12320424B2 (en) | 2020-01-21 | 2025-06-03 | Apex Oilfield Equipment (Qingdao) Co., Ltd. | Lifting mechanism for belt type pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1079485C (en) | 2002-02-20 |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 97118141.1 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97227441.3 utility model patent to be given up, and in the 18 volume of the 8 issue of the new type of communique on the patent right to abandon the announcement. According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 97118141.1 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97227441.3 utility model patent to be given up, and in the 18 volume of the 8 issue of the new type of communique on the patent right to abandon the announcement. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
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