CN109989728A - Pin shaft commutation type long stroke pumping unit - Google Patents
Pin shaft commutation type long stroke pumping unit Download PDFInfo
- Publication number
- CN109989728A CN109989728A CN201711473716.3A CN201711473716A CN109989728A CN 109989728 A CN109989728 A CN 109989728A CN 201711473716 A CN201711473716 A CN 201711473716A CN 109989728 A CN109989728 A CN 109989728A
- Authority
- CN
- China
- Prior art keywords
- chain
- ballast box
- pin shaft
- long stroke
- pumping unit
- 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.)
- Withdrawn
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a kind of pin shaft commutation type long stroke pumping units, including pedestal, rack, motor, retarder, drive sprocket, driven sprocket, chain, specific links, ballast box, crown sheave, wheel carrier, suspending weight band, directive wheel and buffer unit, wherein, the specific links are pin shaft structure, a section on pin shaft one end and chain is rigidly connected, the outer joint bearing of the other end, bearing and ballast box are in rolling contact cooperation.The machine is commutated using gravitational equilibrium and pin shaft, and ballast box is half box type structure, and specific links are pin framework, and the section rigid connection of pin shaft one end and chain, the outer joint bearing of the other end and ballast box are in rolling contact.The special link of commutation process is rolled with ballast box to be cooperated, and is effectively eliminated the reversing impact acted in specific links and lateral bending torque, is kept operation more steady, improves whole aircraft reliability.
Description
Technical field
The present invention relates to a kind of oil recovery machiner devices, especially pin shaft commutation type long stroke pumping unit, utilize mechanical weight
Realized and commutated using pin framework toward multiple equilibria.
Background technique
Currently, adopting for underground oil and gas draws device and is widely used that conventional beam-pumping unit, although it have structure it is simple, can
The advantages that high by property, but be increasingly difficult to meet the requirement of present deep-well, heavy oil wells to pumping unit long stroke, big load,
In this case, chain type oil pump has many advantages, such as that stroke is long, inertial load is small, light weight, occupied area is small and economizes on electricity,
However since its equilibrium problem that commutates is not well solved, reliability is poor.The principal element for influencing its reliability is
Inertial load is larger, and reversing impact is difficult to overcome, and the round-trip frame of reversing mechanism by a lateral bending torque in the front-back direction, makes always
Specific links, path chain, guide wheel and guide rail stress deteriorate, and exacerbate reversing impact, lead to galloping, reversing arrangement mill
Damage is serious, and service life of chain is short, increases cost indirectly.
Summary of the invention
In order to overcome the shortcomings of that it is unstable big with reversing impact that existing chain type oil pump commutates, the present invention provides pin shaft and changes
To formula long stroke pumping unit, which can be realized steady commutation, eliminates reversing impact and lateral bending torque, closes machine stress
Reason.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of pin shaft commutation type long stroke pumping unit, including pedestal, rack, motor, retarder, drive sprocket, driven sprocket,
Chain, specific links, ballast box, crown sheave, wheel carrier, suspending weight band, directive wheel and buffer unit, wherein rack is fixed on pedestal
On, wheel carrier setting is arranged on wheel carrier in frame top, crown sheave, and two groups of buffer units are separately positioned on the top and bottom of rack
Portion, motor, retarder are separately fixed on pedestal, and reducer output shaft and drive sprocket are interference fitted, and driven sprocket passes through
Axis and bearing are arranged on frame inner wall top, and chain closed loop is connected on drive sprocket and driven sprocket, and the section on chain is
Specific links, the guide rail that directive wheel is arranged on ballast box side, directive wheel and rack are in rolling contact, and suspending weight band is hinged on counterweight
Case top, the suspending weight band other end bypass crown sheave, it is characterised in that: the specific links are pin shaft structure, pin shaft one end and chain
Section rigid connection on item, the outer joint bearing of the other end, bearing and ballast box are in rolling contact cooperation.
Above scheme further comprises:
Ballast box is half box type structure, and horizontal, longitudinal section is U shape structure.
Ballast box and chain, drive sprocket and driven sprocket center of gravity are in same plane.
Polished rod eye is connected after the suspending weight band other end is around crown sheave.
The present invention commutates due to using gravitational equilibrium and pin shaft, and commutation process ballast box and specific links roll and cooperate,
So that reversing mechanism reasonable stress, eliminates reversing impact.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural front view of an embodiment of the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is a kind of ballast box schematic perspective view；
Fig. 4 is Fig. 3 ballast box structural front view；
Fig. 5 is Fig. 4 counterweight box structure longitudinal section；
Fig. 6 is Fig. 4 ballast box structure top view.
In figure: 1. motor, 2. retarders, 3. drive sprockets, 4. chains, 5. specific links, 6. ballast boxes, 7. driven chains
Wheel, 8. crown sheavies, 9. wheel carriers, 10. suspending weight bands, 11. polished rod eyes, 12. polished rods, 13. production trees, 14. pedestals, 15. racks, 16.
Directive wheel, 17. buffer units.
Specific embodiment
In Fig. 1, embodiment illustrated in fig. 2, rack 15 is fixed on pedestal 14, and wheel carrier 9 is installed at the top of rack 15, is pacified on wheel carrier 9
Crown sheave 8 is filled, buffer unit 17 is installed in the top and bottom of rack 15, and motor 1, retarder 2 are fixed on pedestal 14, electronic
Machine 1 is connected with 2 input terminal of reduction gearbox, and 2 output shaft of reduction gearbox and drive sprocket 3 are interference fitted, and chain 4 is installed on drive sprocket 3,
Driven sprocket 7 is driven to operate by chain 4, driven sprocket 7 is mounted on 15 inner wall of rack by axis and bearing, and chain 4 assembles
On drive sprocket 3 and driven sprocket 7, the section on chain 4 is specific links 5, and specific links 5 are pin shaft structure, pin shaft one
End is rigidly connected with chain 4, and the outer joint bearing of the other end is in rolling contact with ballast box 6, and 6 side of ballast box is equipped with directive wheel 16,
Directive wheel 16 is in rolling contact with the guide rail in rack 15, the hinged suspending weight band 10 in 6 top of ballast box, and 10 other end of suspending weight band bypasses day
Wheel 8 is connected with polished rod eye 11, and polished rod eye 11 connects polished rod 12, and 12 lower end of polished rod connects production tree 13.
In the embodiment shown in fig. 3, ballast box 6 is half box type structure, and horizontal, longitudinal section is " recessed " word.
In the embodiment shown in fig. 4, about 6 two inner surface of ballast box can be in rolling contact with specific links 5, and hollow space is permitted
Perhaps chain 4, drive sprocket 3 and driven sprocket 7 pass through.6 longitudinal section recess portion of ballast box as shown in Figure 5 makes commutation process counterweight
Case 6 and specific links 5 can roll cooperation, eliminate reversing impact.6 cross section recess portion of ballast box as shown in FIG. 6 guarantees ballast box
6, chain 4, drive sprocket 3 and 7 center of gravity of driven sprocket in the same plane, reduce lateral bending torque.In up-down stroke, pin shaft is held
Uniform motion rolls with ballast box and cooperates when pin shaft uniform motion reaches the upper lower sprocket center of circle horizontal plane ballast box up and down,
1/2 circular motion is completed under chain-driving, reaches sprocket wheel center of circle other side horizontal plane position, and ballast box is made in buffer unit at this time
Reached this position by first even deceleration, then uniformly accelerated motion with lower, contacted with pin shaft, completes commutation.Reversing arrangement structure letter
List, no prismatic pair, reliability are higher.
Claims (4)
1. pin shaft commutation type long stroke pumping unit, including pedestal, rack, motor, retarder, drive sprocket, driven sprocket, chain
Item, specific links, ballast box, crown sheave, wheel carrier, suspending weight band, directive wheel and buffer unit, wherein rack is fixed on the base,
Wheel carrier setting is arranged on wheel carrier in frame top, crown sheave, and two groups of buffer units are separately positioned on the top and bottom of rack,
Motor, retarder are separately fixed on pedestal, and reducer output shaft and drive sprocket are interference fitted, driven sprocket by axis and
Bearing is arranged on frame inner wall top, and chain closed loop is connected on drive sprocket and driven sprocket, and the section on chain is special
Chain link, the guide rail that directive wheel is arranged on ballast box side, directive wheel and rack are in rolling contact, and suspending weight band is hinged on ballast box top
End, the suspending weight band other end bypass crown sheave, it is characterised in that: the specific links are pin shaft structure, on pin shaft one end and chain
Section rigid connection, the outer joint bearing of the other end, bearing and ballast box are in rolling contact cooperation.
2. pin commutation chain long stroke beam-pumping unit described in accordance with the claim 1, it is characterised in that: ballast box is half box type
Structure, horizontal, longitudinal section is U shape structure.
3. pin commutation chain long stroke beam-pumping unit according to claim 2, it is characterised in that: ballast box and chain,
Drive sprocket and driven sprocket center of gravity are in same plane.
4. according to pin commutation chain long stroke beam-pumping unit described in claims 1 or 2,3, it is characterised in that: in suspending weight band
The other end connects polished rod eye after bypassing crown sheave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473716.3A CN109989728A (en) | 2017-12-29 | 2017-12-29 | Pin shaft commutation type long stroke pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473716.3A CN109989728A (en) | 2017-12-29 | 2017-12-29 | Pin shaft commutation type long stroke pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989728A true CN109989728A (en) | 2019-07-09 |
Family
ID=67108692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711473716.3A Withdrawn CN109989728A (en) | 2017-12-29 | 2017-12-29 | Pin shaft commutation type long stroke pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255418A (en) * | 2020-03-20 | 2020-06-09 | 山东博康石油工程技术有限公司 | Double-connecting-rod reversing pumping unit and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179510A (en) * | 1997-10-03 | 1998-04-22 | 孟宪有 | Pumping unit |
| CN2637720Y (en) * | 2003-07-18 | 2004-09-01 | 鞍山鑫宇机械有限公司 | Ultralarge suspension point load long stroke oil pump machine |
| CN201013319Y (en) * | 2007-02-11 | 2008-01-30 | 辽宁省盘锦橡塑机械厂 | Double-chain driven straightly reciprocating single head sheave load-carrying pumping unit |
| CN101307683A (en) * | 2008-05-14 | 2008-11-19 | 中国石油大学(华东) | Symmetrically balanced chain type oil pumping unit |
| CN201212382Y (en) * | 2008-07-15 | 2009-03-25 | 中国石油大学(华东) | Pin commutation chain long stroke beam-pumping unit |
| CN201246142Y (en) * | 2008-05-20 | 2009-05-27 | 中国石油大学(华东) | Top rotary abdicating mechanism of chain type oil pumping machine |
| CN103775030A (en) * | 2012-10-24 | 2014-05-07 | 朱克彦 | Chain drive pumping unit |
| US20160245276A1 (en) * | 2015-02-23 | 2016-08-25 | Weatherford Technology Holdings, Llc | Long-stroke pumping unit |
-
2017
- 2017-12-29 CN CN201711473716.3A patent/CN109989728A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179510A (en) * | 1997-10-03 | 1998-04-22 | 孟宪有 | Pumping unit |
| CN2637720Y (en) * | 2003-07-18 | 2004-09-01 | 鞍山鑫宇机械有限公司 | Ultralarge suspension point load long stroke oil pump machine |
| CN201013319Y (en) * | 2007-02-11 | 2008-01-30 | 辽宁省盘锦橡塑机械厂 | Double-chain driven straightly reciprocating single head sheave load-carrying pumping unit |
| CN101307683A (en) * | 2008-05-14 | 2008-11-19 | 中国石油大学(华东) | Symmetrically balanced chain type oil pumping unit |
| CN201246142Y (en) * | 2008-05-20 | 2009-05-27 | 中国石油大学(华东) | Top rotary abdicating mechanism of chain type oil pumping machine |
| CN201212382Y (en) * | 2008-07-15 | 2009-03-25 | 中国石油大学(华东) | Pin commutation chain long stroke beam-pumping unit |
| CN103775030A (en) * | 2012-10-24 | 2014-05-07 | 朱克彦 | Chain drive pumping unit |
| US20160245276A1 (en) * | 2015-02-23 | 2016-08-25 | Weatherford Technology Holdings, Llc | Long-stroke pumping unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255418A (en) * | 2020-03-20 | 2020-06-09 | 山东博康石油工程技术有限公司 | Double-connecting-rod reversing pumping unit and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190709 |