CN2599234Y - Automatic diameter adjusting moment changing balanced beam type oil extraction machine - Google Patents
Automatic diameter adjusting moment changing balanced beam type oil extraction machine Download PDFInfo
- Publication number
- CN2599234Y CN2599234Y CNU032370946U CN03237094U CN2599234Y CN 2599234 Y CN2599234 Y CN 2599234Y CN U032370946 U CNU032370946 U CN U032370946U CN 03237094 U CN03237094 U CN 03237094U CN 2599234 Y CN2599234 Y CN 2599234Y
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- CN
- China
- Prior art keywords
- walking beam
- bar
- hinged
- balancing
- diameter adjusting
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Abstract
An automatic diameter adjusting moment changing balanced beam type oil extraction machine comprises a driving transmission mechanism, a hooked bar, a connecting bar, a walking beam, a donkey head and a bracket. The front end of the walking beam is connected with the donkey head, the middle part of the walking beam near the donkey head is hinged on top of the bracket, the part between the hinged part and the tail is hinged with the upper end of the connecting bar, one end of the hooked bar is connected with the output axis of the driving transmission mechanism, the other end is hinged with the lower end of the connecting bar, the tail of the walking beam is provided with an extending end, a balancing block is hung at the tail of the walking beam by a pull rod, a diameter adjusting bar is connected with the part between the lower end of the connecting bar and the lower end of the pull rod, the two ends of the pull rod and the diameter adjusting bar are both of hinged structure. The utility model elongates the tail of the walking beam, and increases the pull rod, the diameter adjusting bar and the balancing block which can adjust quality, the lower end of the pull rod is driven by the hooked bar to make the balancing block swing and make the balancing radius of the oil extraction machine increase in the downstroke movement so that the trimming moment becomes bigger. In the upstroke movement, the balancing radius diminishes and the trimming moment becomes smaller, which can achieve the automatic adjustment of the balancing radius and reach the needed moment of balancing the underground load, thereby greatly reducing the consumption of energy. The automatic balancing effect of weight counterbalance can save the weight counterbalance of the hooked bar, simplify the structure and reduce the production cost.
Description
Technical field
The utility model relates to the oil recovery machiner field, exactly relates to a kind of automatic diameter-adjusting and torque-changing balance beam type oil pump.
Background technology
The structure of existing oil pumper as shown in Figure 2, comprise that the drive transmission of being made up of motor 12, belt transmission secondary 11 and reducer 7 drives crank 9 by output shaft 8 and rotates, balance weight 14 is arranged on the crank 9, connecting rod 6 lower ends and crank 9 are hinged, its upper end is hinged near the tail place with walking beam 2, the middle part of walking beam 2 is articulated in the top of support 4, and the tail end of walking beam 2 has balance weight 5, and the front end of walking beam 2 has horse head 1.During use, drive transmission drives crank 9 and rotates around output shaft 8, drives the axis swing of the front and back end of walking beam 2 around support shaft 3 by connecting rod 6, and the polished rod eye 13 on the horse head 1 is with the crude oil extraction in the well.Horse head 1 is pumped when up, and its load is big, prepares for oil pumping when descending, and load is little.This oil pumper weak point is: the balance weight that is fixed on beam travelling tail end can not change the position with the variation of down-hole load, and the balance weight on the crank is very heavy, and above reason all causes energy consumption very big.
Summary of the invention
The purpose of this utility model with regard to provide a kind of can be with the down-hole load change the automatic diameter-adjusting and torque-changing balance beam type oil pump of the moment size of corresponding change balance weight.
The technical solution of the utility model is: comprise drive transmission device, crank, connecting rod, walking beam, horse head, support, the head end of walking beam connects horse head, walking beam middle part is hinged in cantilever tip near the horse head place, walking beam and support hinged part between the tail end with the upper end hinge of connecting rod; Crank one end is connected with the output shaft of drive transmission device, the lower end of the other end and connecting rod is hinged, the tail end of described walking beam has an extended end, be hung with balance weight at beam travelling tail end by pull bar, be connected with the path transfer bar between connecting rod lower end and pull bar lower end, the two ends of pull bar and path transfer bar are the hinge structure.
Described balance weight is for adjusting the structure of quality.
The utility model is by increasing beam travelling tail end length and pull bar, the path transfer bar newly established and the balance weight that can adjust quality.The pull bar lower end makes the balance weight swing under the driving of crank, oil pumper equilibrium radius when up stroke moves is increased, and trimming moment is then big.Equilibrium radius reduces during the down stroke motion, and trimming moment is then little.Realization is to the automatic adjusting of balance weight equilibrium radius, thereby reaches the required moment of balance down-hole load, reduced energy consumption greatly.Because the autobalance effect of balance weight can be saved the balance weight on the crank, simplifies the structure, and has reduced manufacturing cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the oil pumper structural representation of prior art.
The specific embodiment
Referring to Fig. 1, the utility model comprises drive transmission device, crank 9, connecting rod 6, walking beam 2, horse head 1, the support of being made up of motor 12, belt transmission secondary 11 and reducer 74, the head end of walking beam 2 connects horse head 1, walking beam middle part is hinged on the top of support 4 near horse head 1 place, walking beam 2 and support 4 hinged parts between the tail end with the upper end hinge of connecting rod 6; One end of crank 9 is connected with the output shaft 8 of drive transmission device, and the lower end of the other end and connecting rod 6 is hinged.The tail end of described walking beam 2 has an extended end 21, is hung with balance weight 16 at its tail end by pull bar 15, is provided with path transfer bar 17 between the lower end of the lower end of connecting rod 6 and pull bar 15, and the two ends of pull bar 15 and path transfer bar 17 are the hinge structure.Balance weight 16 be for can adjust the structure of quality, as adopts a plurality of plates to be through together to constitute.
The utility model has removed crank counterbalance 14 and beam counterweight 5 (referring to Fig. 2), has increased the length of walking beam 2 tail ends, has newly established pull bar 15, path transfer bar 17 and can adjust the balance weight 16 of quality.During oil pumper work, the output shaft 8 of drive transmission device drives crank 9 and rotates around output shaft 8, and crank 9 drivening rods 6 affect walking beam 2 and horse head 1 swing.Simultaneously, balance weight 16 is at the driving lower swing of path transfer bar 17, the motion of having synthesized balance weight 16 under the swing acting in conjunction of it and walking beam 2, and its movement locus is similar to coupler-point curve.Horse head 1 equilibrium radius when up stroke moves of oil pumper is increased, and trimming moment increases.Equilibrium radius reduces during the down stroke motion, and trimming moment diminishes.This movement mechanism meets the oil well load changing just.Also can adjust the counterbalance effect that the quality of balance weight 16 can be realized ideal according to the size of oil well load.
Adopt above-mentioned technological improvement measure, realized balance exercise mechanism new, counterbalance effect is good.Complete machine motion is steady, in light weight, attended operation is easy so it can make, the moment of torsion of coupling power of electric motor and reducer reduces, reduces production costs.Simultaneously, utilize this technology to undergo technological transformation, estimate that economic benefit is considerable a large amount of existing beam pumping units.
Claims (2)
1, a kind of automatic diameter-adjusting and torque-changing balance beam type oil pump, comprise drive transmission device, crank, connecting rod, walking beam, horse head, support, the head end of walking beam connects horse head, walking beam middle part is hinged in cantilever tip near the horse head place, walking beam and support hinged part between the tail end with the upper end hinge of connecting rod; Crank one end is connected with the output shaft of drive transmission device, the lower end of the other end and connecting rod is hinged, it is characterized in that: the tail end of described walking beam has an extended end, be hung with balance weight at beam travelling tail end by pull bar, be connected with the path transfer bar between connecting rod lower end and pull bar lower end, the two ends of pull bar and path transfer bar are the hinge structure.
2, automatic diameter-adjusting and torque-changing balance beam type oil pump according to claim 1 is characterized in that: described balance weight is for adjusting the structure of quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032370946U CN2599234Y (en) | 2003-01-24 | 2003-01-24 | Automatic diameter adjusting moment changing balanced beam type oil extraction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032370946U CN2599234Y (en) | 2003-01-24 | 2003-01-24 | Automatic diameter adjusting moment changing balanced beam type oil extraction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599234Y true CN2599234Y (en) | 2004-01-14 |
Family
ID=34167178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032370946U Expired - Fee Related CN2599234Y (en) | 2003-01-24 | 2003-01-24 | Automatic diameter adjusting moment changing balanced beam type oil extraction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599234Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961658A (en) * | 2022-05-28 | 2022-08-30 | 濮阳市海华石油机械有限公司 | Variable-pitch balanced beam-pumping unit |
| CN116498273A (en) * | 2023-05-18 | 2023-07-28 | 东营合瑞石油技术有限责任公司 | Force balance beam type pumping unit |
-
2003
- 2003-01-24 CN CNU032370946U patent/CN2599234Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961658A (en) * | 2022-05-28 | 2022-08-30 | 濮阳市海华石油机械有限公司 | Variable-pitch balanced beam-pumping unit |
| CN116498273A (en) * | 2023-05-18 | 2023-07-28 | 东营合瑞石油技术有限责任公司 | Force balance beam type pumping unit |
| CN116498273B (en) * | 2023-05-18 | 2023-11-24 | 东营合瑞石油技术有限责任公司 | Force balance beam type pumping unit |
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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 |