CN2881194Y - Crank pin shaft coupler of sinlge crank multiple range flexible oil pumping machine - Google Patents
Crank pin shaft coupler of sinlge crank multiple range flexible oil pumping machine Download PDFInfo
- Publication number
- CN2881194Y CN2881194Y CN 200620000018 CN200620000018U CN2881194Y CN 2881194 Y CN2881194 Y CN 2881194Y CN 200620000018 CN200620000018 CN 200620000018 CN 200620000018 U CN200620000018 U CN 200620000018U CN 2881194 Y CN2881194 Y CN 2881194Y
- Authority
- CN
- China
- Prior art keywords
- crank
- crank pin
- oil pumping
- pin shaft
- pumping machine
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A crank pin shaft coupler of single crank multiple range flexible oil pumping machine, is mainly to solve the problem that the prior crank pin shaft coupler of oil pumping machine is complex in structure and difficult to manufacture and install. The utility model is characterized in that: a cone surface (2) which lies at one side of the step of a crank pin (1) is installed in a crank (6) hole; a lock bolt sleeve (3) of an inner cone shape sleeves on the cone surface (2); a back fastening-cap (5) is connected on the crank pin (1) of the outside of the lock bolt sleeve (3) through the thread. The utility model has the advantages of simple structures and easy to manufacture and installation.
Description
Technical field:
The utility model relates to the used connection set of pumping unit, especially single-crank multiple-stroke flexible type pumping unit crank pin coupling piece in the oil recovery field, oil field.
Background technique:
Along with Oilfield developing, technology constantly develops, mechanical oil recovery equip ment from the beam pumping unit to the submersible electric pump, screw pump etc., of a great variety, to adapt to the needs of different productive lives.At present, the pumping unit that is used for artificial lift is based on beam pumping unit, is divided into conventional type beam pumping unit, prefix type beam pumping unit, out-phase type beam pumping unit and two horse head type beam pumping unit according to the difference of the structure of the crank quadratic crank mechanism of horse head.The crank pin coupling piece of this structural type exists complex structure because of reasons in structure, and manufacturing and installation difficulty is unfavorable for applying.
The model utility content:
In order to solve the problem of existing oil pumping machine crank pinned connections complex structure and manufacturing and installation difficulty, the utility model provides a kind of single-crank multiple-stroke flexible type pumping unit crank pin coupling piece, and this single-crank multiple-stroke flexible type pumping unit crank pin coupling piece has characteristics simple in structure and that easily make and install.
The technical solution of the utility model is: this single-crank multiple-stroke flexible type pumping unit crank pin coupling piece comprises crank pin, the step one side conical surface of crank pin places in the crank hole, cover inner conical lock sleeve on the conical surface, on the crank pin of the lock sleeve outside by the back tight cap that has been threaded.
Be with packing ring on the lock sleeve outer end crank pin in the such scheme.
The utlity model has following beneficial effect: this single-crank multiple-stroke flexible type pumping unit crank pin coupling piece is owing to take such scheme, utilize the two-taper ferrule structure, guaranteeing under original function situation, quality of fit reduces relatively, link reduces, make simple in structurely, easily make and install, reduce and make and installation cost.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-crank pin among the figure, 2-conical surface, 3-lock sleeve, 4-packing ring, 5-back tight cap, 6-crank.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this single-crank multiple-stroke flexible type pumping unit crank pin coupling piece comprises crank pin 1, the step one side conical surface 2 of crank pin 1 places in crank 6 holes, cover inner conical lock sleeve 3 on the conical surface 2, be with packing ring 4 on the lock sleeve 3 outer end crank pins, on packing ring 4 outside crank pins 1 by the back tight cap 5 that has been threaded.At first the conical surface 2 of crank pin 1 places in the hole of crank 6, secondly with cover locking cover 3 on the conical surface 2, with lock sleeve 3 overcoat upper gaskets 4, by back tight cap 5 crank pin 1 is fixed on the crank at last again, cause is a two-taper ferrule structural type, guaranteeing that quality of fit reduces relatively under original function situation like this, link reduces, make simple in structure, be easy to make and install, reduce and make and installation cost, help applying.
Claims (2)
1, a kind of single-crank multiple-stroke flexible type pumping unit crank pin coupling piece, comprise crank pin (1), it is characterized in that: the step one side conical surface (2) of crank pin (1) places in crank (6) hole, conical surface (2) is gone up cover inner conical lock sleeve (3), and tight cover (3) outside crank pin (1) is gone up by the back tight cap that has been threaded (5).
2, single-crank multiple-stroke flexible type pumping unit crank pin coupling piece according to claim 1 is characterized in that: be with packing ring (4) on the crank pin of lock sleeve (3) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000018 CN2881194Y (en) | 2006-01-04 | 2006-01-04 | Crank pin shaft coupler of sinlge crank multiple range flexible oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000018 CN2881194Y (en) | 2006-01-04 | 2006-01-04 | Crank pin shaft coupler of sinlge crank multiple range flexible oil pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881194Y true CN2881194Y (en) | 2007-03-21 |
Family
ID=37881034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000018 Expired - Fee Related CN2881194Y (en) | 2006-01-04 | 2006-01-04 | Crank pin shaft coupler of sinlge crank multiple range flexible oil pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881194Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597578A (en) * | 2014-12-17 | 2015-05-06 | 中国科学院上海光学精密机械研究所 | Centering universal regulating mechanism for optical element |
| CN104674869A (en) * | 2007-11-26 | 2015-06-03 | 爱斯科公司 | Pinned connections |
-
2006
- 2006-01-04 CN CN 200620000018 patent/CN2881194Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674869A (en) * | 2007-11-26 | 2015-06-03 | 爱斯科公司 | Pinned connections |
| CN104597578A (en) * | 2014-12-17 | 2015-05-06 | 中国科学院上海光学精密机械研究所 | Centering universal regulating mechanism for optical element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20150104 |
|
| EXPY | Termination of patent right or utility model |