CN200982183Y - Hydraulic oil pumping unit - Google Patents
Hydraulic oil pumping unit Download PDFInfo
- Publication number
- CN200982183Y CN200982183Y CN 200620140833 CN200620140833U CN200982183Y CN 200982183 Y CN200982183 Y CN 200982183Y CN 200620140833 CN200620140833 CN 200620140833 CN 200620140833 U CN200620140833 U CN 200620140833U CN 200982183 Y CN200982183 Y CN 200982183Y
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- CN
- China
- Prior art keywords
- oil cylinder
- pumping unit
- wheel
- load
- hydraulic pumping
- 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
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Abstract
A hydraulic pumping unit which comprises a big wheel and a small wheel, wherein one side of the big wheel is connected with a polished rod eye and the other side is connected with a counterbalance, and the small wheel is connected with a cylinder with the rack-and-pinion method. The hydraulic pumping unit which can be made easily can reduce the speed of the piston and extend its durability, the length of the cylinder can be shortened through adjusting the ratio of the wheel diameter of the big and the small wheel, the weight of the counterbalance can be adjusted and can completely absorb the energy of position produced by the oil-well pump when it descends and maintain a balance of the cylinder load in the up and down stroke.
Description
Affiliated technical field
The utility model relates to and a kind ofly drags oil well pump hydraulic pumping unit up and down with hydraulic jack.
Background technology
The direction of oil pumper development is long stroke, heavy load.Hydraulic pumping unit than mechanical type oil production machine (as the machine of kowtowing) have simple in structure, can arbitrarily adjust relatively advantage such as equilibrium of stroke jig frequency, the oil well pump speed of service, but at present general hydraulic pumping unit majority connects polished rod eye with the oil cylinder piston bar, oil cylinder stroke equals the oil well pump stroke, reach the requirement of long stroke, oil cylinder is inevitable very long, makes difficulty.Oil cylinder piston speed height influences the oil cylinder life-span.Reclaim the potential energy of oil well pump down stroke, need baroque oil cylinder and large energy accumulation device, and the load of up-down stroke, still be difficult to reach complete equilibrium, influence transmission efficiency.
Summary of the invention
Long for overcoming above-mentioned general hydraulic oil pumping Oil cylinder, make difficulty, the not long and unbalanced shortcoming that influences efficient of up-down stroke load of life-span, the utility model provides a kind of and adopts coaxial big or small runner to connect the structure of polished rod eye, balance weight and oil cylinder respectively, reach and shorten oil cylinder length, reduce the piston speed life-saving, and make up-down stroke load balanced fully to improve the purpose of operational efficiency.
The scheme that the utility model solves the problems of the technologies described above is to have on coaxial big or small runner and polished rod eye balance weight and oil cylinder to link, one side of great wheel connects the oil well pump polished rod eye, opposite side connects balance weight, little runner is because the wheel footpath is little, power transmission big and need two-way transmission, making pinion is connected with oil cylinder piston in the rack-and-pinion mode, because the wheel of big steamboat footpath is different, oil cylinder stroke also is that length can be dwindled at double, oil cylinder piston speed also reduces at double, and oil cylinder is general two-way constant speed or variable speed oil cylinder, simple in structure, be easy to make.
The weight of above-mentioned balance weight can be regulated by actual requirement, and its weight equals half of up load of oil well pump and descending load sum.If up load is F, descending load is f, oil cylinder load is N, N=F-when then up (F+f)/2=(F-f)/2, N=when descending (F+f)/2-f=(F-f)/2, the load of oil cylinder is identical during up-downgoing, also be the load of the whole stroke of oil cylinder, except that when turning to up and down, having slightly the change, balanced fully, improve transmission efficiency.
The beneficial effects of the utility model are that oil cylinder is short and simple, are easy to make.Piston speed is low, and the life-span is long.Balance weight had both reclaimed the potential energy of down stroke fully, made the up-down stroke load equalization again, improved transmission efficiency.Integrate, can reach the purpose of long stroke heavy load better.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an elevation of the present utility model.
Fig. 2 is a vertical view of the present utility model.
1. rotating shafts among the figure, 2. great wheel, 3 little runners (gear), 4. oil cylinder piston, 5. tooth bar, 6. polished rod eye, 7. balance weight
The specific embodiment
The primer fluid pressing system, oil cylinder piston (4) moves to right, and drives tooth bar (5), makes big or small runner (2) (3) simultaneously to contrary pin direction rotation, and polished rod eye (6) rises, and balance weight (7) descends, and reduces oil cylinder load.During to the upstroke summit, the hydraulic valve commutation turns to oil cylinder piston (4) and gear (3) tooth bar (5) great wheel (2), and polished rod eye (6) is descending, and balance weight (7) is up.Because the weight of balance weight is greater than the weight of oil well pump, the descending potential energy of oil well pump had both been reclaimed in still work done when up as polished rod eye of oil cylinder, oil cylinder load equalization when making up and down stroke.Oil cylinder can horizontal positioned, is convenient to installation and maintenance.
Claims (3)
1. hydraulic pumping unit has big or small runner to be connected with polished rod eye, balance weight and oil cylinder on coaxial, it is characterized in that a side of great wheel connects polished rod eye, and opposite side connects balance weight, and little runner is connected with the oil cylinder piston bar in the rack-and-pinion mode.
2. hydraulic pumping unit according to claim 1 is characterized in that oil cylinder is the two-way cylinder of constant speed or non-constant speed.
3. hydraulic pumping unit according to claim 1 is characterized in that the weight of balance weight is adjustable, equals half of up load of oil well pump and descending load sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140833 CN200982183Y (en) | 2006-12-08 | 2006-12-08 | Hydraulic oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140833 CN200982183Y (en) | 2006-12-08 | 2006-12-08 | Hydraulic oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982183Y true CN200982183Y (en) | 2007-11-28 |
Family
ID=38909343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140833 Expired - Fee Related CN200982183Y (en) | 2006-12-08 | 2006-12-08 | Hydraulic oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982183Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562007A (en) * | 2012-02-14 | 2012-07-11 | 周彦 | Automatic adjusting device for locations of balance blocks of petroleum pumping unit |
| CN103132955A (en) * | 2011-12-03 | 2013-06-05 | 陈建武 | Pulley-type eccentric rack reversing pumping unit |
| CN105436324A (en) * | 2015-11-11 | 2016-03-30 | 无为县鑫发盛汽车零部件有限公司 | Cooling water extracting device |
-
2006
- 2006-12-08 CN CN 200620140833 patent/CN200982183Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132955A (en) * | 2011-12-03 | 2013-06-05 | 陈建武 | Pulley-type eccentric rack reversing pumping unit |
| CN102562007A (en) * | 2012-02-14 | 2012-07-11 | 周彦 | Automatic adjusting device for locations of balance blocks of petroleum pumping unit |
| CN105436324A (en) * | 2015-11-11 | 2016-03-30 | 无为县鑫发盛汽车零部件有限公司 | Cooling water extracting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Shuoken Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20100108 |