CN2345730Y - Three-donkey-head long-stroke beam-pumping unit - Google Patents
Three-donkey-head long-stroke beam-pumping unit Download PDFInfo
- Publication number
- CN2345730Y CN2345730Y CN 97211436 CN97211436U CN2345730Y CN 2345730 Y CN2345730 Y CN 2345730Y CN 97211436 CN97211436 CN 97211436 CN 97211436 U CN97211436 U CN 97211436U CN 2345730 Y CN2345730 Y CN 2345730Y
- Authority
- CN
- China
- Prior art keywords
- horse head
- pendulum
- curve
- gentle bar
- bar
- 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.)
- Expired - Fee Related
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 20
- 241001023788 Cyttus traversi Species 0.000 claims abstract description 67
- 244000062793 Sorghum vulgare Species 0.000 claims description 4
- 235000019713 millet Nutrition 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000000245 forearm Anatomy 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Toys (AREA)
Abstract
The utility model a three-horse head long stroke beam-pumping unit, belonging to a machine for ground oil production in an oil field. The utility model is a variable element six levers mechanism beam-pumping unit which is composed of a variable element crank and rocker mechanism and a variable element double rocker mechanism. A front horse head 1 and a back horse head 3 are fixedly arranged at the front part and the back part of a walking beam 2 which is arranged on a bracket I 14. A swinging horse head 4 is arranged on a bracket II 9. The utility model has the advantages of better performance of force transmission, and greater stroke. Compared with other types with same standards, the utility model can cause the stroke to be increased from 15% to 80%, and the torque of a speed reducer to be reduced from one step to two steps. The utility model is especially suitable for operating conditions of long stroke and low stroke frequency.
Description
" three horse head long stroke pumping units " is ground, a kind of oil field oil recovery machiner, is a kind of trip fine strain of millet formula variable element plane six-bar linkage pumping unit.
Document 1 " oil field equipment " the 25th volume, the 5th phase in 1996, the 44th page have been reported a kind of " design of special beam pumping units ".This machine adopts " variable element quadratic crank mechanism ".This mechanism has improved the transmission force property of fourbar linkage, has increased stroke, but still can not satisfy the needs of oil field to long stroke pumping unit.Document 2 " petroleum machinery " the 24th volume, the 3rd phase in 1996, the 43rd page have been reported a kind of " novel special-shaped rotating horsehead stroke length increasing pumping unit ".This machine is to adopt the six-bar linkage rotating horsehead pumping unit of deciding crankrocker mechanism and variable element double rocker mechanism formation.This mechanism has increased stroke, but mechanism's transmission force property still needs to improve.
Task of the present utility model is: it is better to design a kind of mechanism transmission force property, the variable element plane six-bar linkage long stroke pumping unit that stroke is bigger.
Its solution is: adopt two-stage " variable element fourbar linkage " formation " variable element six-bar linkage ".The fourbar linkage that the first order is made up of crank 11, connecting rod I, pendulum horse head 4 and frame, wherein the connecting rod I is made up of gentle bar I 5, crossbeam 6 and connecting rod 7, and gentle bar I 5 is rods, and frame is made up of support I 14, support II 9 and base 12.During upstroke, gentle bar I 5 is launched along the curve I 18 of pendulum horse head 4, and during down stroke, gentle bar I 5 is twined along the curve I 18 of pendulum horse head 4.This fourbar linkage is the crankrocker mechanism of connecting rod I, rocking bar variable-length.The fourbar linkage that the second level is made up of pendulum horse head 4, gentle bar II 15, trip fine strain of millet 2 and frame.Wherein gentle bar II 15 is rods.During upstroke, gentle bar II 15 is launched along the curve of back horse head 3, twines along the curve II 17 of pendulum horse head 4.During down stroke, gentle bar II 15 is twined along the curve of back horse head 3, launches along the curve II 17 of pendulum horse head 4.This fourbar linkage is two rocking bars and the variable double rocker mechanism of connecting rod II.Length by changing gentle bar I 5, gentle bar II 15 and can regulate stroke by the position that known method is adjusted crank pin.
Adopt two-stage " variable element fourbar linkage ", walking beam 2 pivot angles are further strengthened, under the prerequisite that does not increase the walking beam forearm, make the stroke of pumping unit increase more than 15%.This mechanism makes the point suspension movement maximum acceleration less, and retarder 10 moments of torsion are less.And can be provided for the weight of balance of mechanism in pendulum horse head 4, the back horse head 3.
Fig. 1, the plan view of one three horse head long stroke pumping unit (schematic diagram).
Fig. 2, the plan view (schematic diagram) of pendulum horse head 4.
Fig. 3, pendulum horse head 4, back horse head 3, gentle bar I 5 and gentle bar II 15 connect schematic representation.
Fig. 1 has described one three horse head long stroke pumping unit.It is driven by motor 13, retarder 10.Walking beam 2 is installed on the support I 14, the end that pendulum horse head 4. gentle bar I 5, gentle bar II 15 are installed on horse head 1 and the back horse head 3. support II 9 before walking beam 2 front and back are fixedly mounting is connected in respectively on the pendulum horse head 4, the other end of gentle bar I 5 links to each other with crank 11 by crossbeam 6, connecting rod 7, and the other end of gentle bar II 15 links to each other with the back horse head 3 of walking beam 2.Two-part before and after the turning axle 16 of walking beam 2 is divided into walking beam 2 are called walking beam forearm (horse head 1 before containing) and walking beam postbrachium (containing back horse head 3). and protection rope 8 is equipped with in pendulum horse head 4 rear ends.
Fig. 2 has described on a pendulum horse head 4. pendulum horse heads 4 two curves, i.e. curve I 18, curve II 17.On the curve II 17 any point to the distance in turning axle 19 axle center greater than any point on the curve I 18 to the distance in turning axle 19 axle center, promptly curve II 17 is positioned at the outside of curve I 18.But pendulum horse head 4 wraparound rotating shafts 19 swings.
Fig. 3 has described the connecting structure of pendulum horse head 4, back horse head 3, gentle bar I 5 and gentle bar II 15.Pendulum horse head 4 is respectively 21,22 with the theoretical interface of gentle bar I 5 and gentle bar II 15, and back horse head 3 is 20 with gentle bar II 15 theoretical interfaces.
Claims (6)
1. three horse head long stroke pumping units, be a kind of six-bar mechanism oil extractor. it is by motor 13, retarder 10 drives, a trip fine strain of millet 2 that is installed on the support I 14 is arranged, horse head 1 and back horse head 3. is characterized in that before walking beam 2 front and back were fixedly mounting: it has one by crank 11, the connecting rod I, " the variable element crankrocker mechanism " that pendulum horse head 4 and frame are formed and one are by pendulum horse head 4, gentle bar II 15, " the variable element double rocker mechanism " that trip fine strain of millet 2 and frame are formed, pendulum horse head 4 is installed on the support II 9, on the pendulum horse head 4 two curves are arranged, it is curve I 18, curve II 17, and curve II 17 is positioned at the outside of curve I 18.One end of gentle bar I 5, gentle bar II 15 is connected in respectively on the pendulum horse head 4, and the other end of gentle bar I 5 links to each other with crank 11 by crossbeam 6, connecting rod 7, and the other end of gentle bar II 15 links to each other with the back horse head 3 of walking beam 2.During work, along the curve I 18 of pendulum horse head 4, curve II 17 is twined or is launched respectively for gentle bar I 5, gentle bar II 15, and the sequential that both twine, launch is opposite.Gentle bar II 15 is along back horse head 3 curves, and the sequential that the curve II 17 of pendulum horse head 4 is twined, launched is also opposite.
2. according to three horse head long stroke pumping units of claim 1, it is characterized in that: have three horse heads (preceding horse head 1, back horse head 3 and pendulum horse head 4).
3. according to three horse head long stroke pumping units of claim 1, it is characterized in that: crank 11 passes through rods--and-connecting rod I links to each other with pendulum horse head 4.
4. according to three horse head long stroke pumping units of claim 1, it is characterized in that: pendulum horse head 4 passes through rods--and-gentle bar II 15 links to each other with back horse head 3.
5. according to three horse head long stroke pumping units of claim 1, it is characterized in that: during upstroke, gentle bar I 5 is launched along the curve I 18 of pendulum horse head 4.During down stroke, gentle bar I 5 is twined along the curve I 18 of pendulum horse head 4.
6. according to three horse head long stroke pumping units of claim 1, it is characterized in that: during upstroke, gentle bar II 15 is launched along the curve of back horse head 3, twines along the curve II 17 of pendulum horse head 4.During down stroke, gentle bar II 15 is twined along the curve of back horse head 3, launches along the curve II 17 of pendulum horse head 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97211436 CN2345730Y (en) | 1997-02-19 | 1997-02-19 | Three-donkey-head long-stroke beam-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97211436 CN2345730Y (en) | 1997-02-19 | 1997-02-19 | Three-donkey-head long-stroke beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2345730Y true CN2345730Y (en) | 1999-10-27 |
Family
ID=33929954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97211436 Expired - Fee Related CN2345730Y (en) | 1997-02-19 | 1997-02-19 | Three-donkey-head long-stroke beam-pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2345730Y (en) |
-
1997
- 1997-02-19 CN CN 97211436 patent/CN2345730Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |