CN201047258Y - Smooth sucker rod security locking device - Google Patents
Smooth sucker rod security locking device Download PDFInfo
- Publication number
- CN201047258Y CN201047258Y CNU2007200055226U CN200720005522U CN201047258Y CN 201047258 Y CN201047258 Y CN 201047258Y CN U2007200055226 U CNU2007200055226 U CN U2007200055226U CN 200720005522 U CN200720005522 U CN 200720005522U CN 201047258 Y CN201047258 Y CN 201047258Y
- Authority
- CN
- China
- Prior art keywords
- locking
- main body
- locking main
- latch segment
- axis
- 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 safe locking device for a pumping polished rod, which is used for the process of petroleum exploitation, mainly consists of locking main bodies, locking blocks, a locking bolt and axis pins and is characterized in that central parts corresponding to a locking main body a and a locking body b are two cylindrical internal surfaces with axises which intersect at the lower part of a symmetrical surface of the locking body a and the locking body b and which have the same deviation angle with the symmetrical surface; internal surfaces and external surfaces of the locking block a and the locking block b are cylindrical surfaces, and a deviation angle of the axis of the external cylindrical surface and the internal cylindrical surface is the same as the angle of the symmetrical surface and the axis of the two cylindrical internal surfaces. The safe locking device has the effect of achieving the purpose of improving the locking condition of a polished rod by changing center lines of the locking main bodies and the locking blocks to lead the center lines to deviate from the symmetrical surface of the locking main bodies and by adding a layer of friction materials on the internal surface of the locking blocks. The utility model has the advantages of simple structure, reliable locking and no damage to the pumping polished rod.
Description
Technical field
The utility model relates to a kind of mechanical oil recovery special tool, particularly a kind of oil pumping polish rod safe locking device that is applied to oil recovery process.
Background technology
In the oil field machinery oil process, the castering action of oil pumper promotes the oil pumping polish rod that is pinned by the oil pumping polish rod locking device by the oil pumper polished rod eye and finishes, and the lifting load of oil pumping polish rod comprises all rod weight under the oil well, promotes fluid column weight and mechanical friction power sum.The oil pumping polish rod locking device of prior art exists locks unreliable easy slippage, serious so that cause the shortcoming of polished rod fracture to the polished rod surface damage to polished rod.
Summary of the invention
The purpose of this utility model provides a kind of not only to the oil pumping polish rod reliable lock but also oil pumping polish rod is not caused the oil pumping polish rod safe locking device of obvious damage.
The purpose of this utility model is achieved in that the oil pumping polish rod safe locking device, mainly is made up of locking main body a, locking main body b, latch segment a, latch segment b, lock bolt, bearing pin and upper press cover.
Locking main body a is respectively internal surface of column with the corresponding core of locking main body b, and the axis of these two internal surface of column departs from identical angle at locking main body a with bottom phase intersecting and merging and this plane of symmetry of the plane of symmetry of locking main body b.
The surfaces externally and internally of latch segment a, latch segment b is the face of cylinder, the axis of external cylindrical surface and the certain angle of the axis runout of inner cylinder face, and angular dimension is identical with above-mentioned angle.
The external surface axis of two latch segments respectively with two locking main bodys the internal surface of column deads in line, the external surface of two latch segments is identical with the internal surface of column diameter of two locking main bodys respectively and form and to be slidingly matched, the inner surface of two latch segments is combined into a cylindrical hole, is used for pinning the oil pumping polish rod of respective diameters.
The inner surface of two latch segments has friction material respectively, and purpose is to guarantee that having enough frictional resistance with the oil pumping polish rod external surface can make oil pumping polish rod injury-free again.
The beneficial effects of the utility model: the oil pumping polish rod safe locking device has reliable lock, does not damage the advantage of oil pumping polish rod.
Description of drawings
Fig. 1 is the utility model oil pumping polish rod safe locking device structural representation.
Fig. 2 is the structural profile schematic diagram of latch segment locking oil pumping polish rod.
The specific embodiment
Embodiment 1: consult Fig. 1.The utility model oil pumping polish rod safe locking device mainly is made up of locking main body a1, locking main body b2, latch segment a3, latch segment b4, lock bolt 6, bearing pin 5, upper press cover.Locking main body a1 is respectively internal surface of column with the corresponding core of locking main body b2, and the axis of two internal surface of column is crossing with the bottom of the plane of symmetry of locking main body b2 and depart from identical angle with this plane of symmetry at locking main body a1.The surfaces externally and internally of latch segment a3, latch segment b4 is the face of cylinder, and the axis runout angular dimension of the axis of external cylindrical surface and inner cylinder face is identical with above-mentioned angle.The external surface axis of two latch segments 3,4 respectively with the internal surface of column deads in line of two locking main bodys 1,2, the external surface of two latch segments 3,4 is identical with the internal surface of column diameter of two locking main bodys 1,2 respectively and form and to be slidingly matched.Consult Fig. 2.The inner surface of two latch segments 3,4 is combined into a cylindrical hole.The inner surface of latch segment a3, latch segment b4 has friction material respectively.
Sketch the course of work of this device, the utility model done further specifies: locking main body a1 with lock main body b2 and connect by bearing pin 5, the center that during work oil pumping polish rod is placed this device is then with certain prefastening torque locking lock bolt 6, at this moment oil pumper promotes the oil pumping polish rod safe locking device by polished rod eye, because latch segment 3, the frictional force of 4 inner surfaces and oil pumping polish rod 7 external surfaces is greater than latch segment 3,4 external surfaces and locking main body 1, so the frictional force of 2 internal surface of column is along with the increase latch segment 3 of oil pumper lifting force, 4 with oil pumping polish rod 7 will be simultaneously along locking main body 1,2 internal surface of column glide, because the axis of locking body cylindrical inner surface intersects with the bottom of the plane of symmetry of locking main body b2 and departs from identical angle with this plane of symmetry at locking main body a1, so make of the coupling mechanism force corresponding increase of whole device after the downslide to oil pumping polish rod, thereby reach the purpose of reliable locking.
For the friction factor that makes latch segment 3,4 inner surfaces and oil pumping polish rod 7 external surfaces greater than the friction factor of latch segment 3,4 external surfaces with locking main body 1,2 internal surface of column; this device has adopted the method for adhering to a kind of friction material at latch segment 3,4 inner surfaces, and this method makes has also protected oil pumping polish rod to make its surface injury-free when oil pumping polish rod is reliably locked.
Claims (3)
1. the oil pumping polish rod safe locking device mainly is made up of locking main body a (1), locking main body b (2), latch segment a (3), latch segment b (4), lock bolt (6), bearing pin (5) and upper press cover, it is characterized in that:
Locking main body a (1) is respectively internal surface of column with locking main body b (2) corresponding core, and the axis of two internal surface of column is crossing with the bottom of the plane of symmetry of locking main body b (2) and depart from identical angle with this plane of symmetry at locking main body a (1);
The surfaces externally and internally of latch segment a (3), latch segment b (4) is the face of cylinder, the axis of external cylindrical surface and the certain angle of the axis runout of inner cylinder face, and angular dimension is identical with above-mentioned angle.
2. oil pumping polish rod safe locking device according to claim 1, it is characterized in that: the external surface axis of two latch segments (3,4) respectively with two locking main bodys (1,2) the internal surface of column deads in line, the external surface of two latch segments (3,4) is identical with the internal surface of column diameter of two locking main bodys (1,2) respectively and form and to be slidingly matched, and the inner surface of two latch segments (3,4) is combined into a cylindrical hole.
3. oil pumping polish rod safe locking device according to claim 1 and 2 is characterized in that: the inner surface of latch segment a (3) and latch segment b (4) has friction material respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200055226U CN201047258Y (en) | 2007-03-07 | 2007-03-07 | Smooth sucker rod security locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200055226U CN201047258Y (en) | 2007-03-07 | 2007-03-07 | Smooth sucker rod security locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047258Y true CN201047258Y (en) | 2008-04-16 |
Family
ID=39299841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200055226U Expired - Fee Related CN201047258Y (en) | 2007-03-07 | 2007-03-07 | Smooth sucker rod security locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047258Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033114A (en) * | 2013-03-06 | 2014-09-10 | 中国石油天然气股份有限公司 | Supporting disc of oil pumping unit horsehead beam hanger |
| CN110593910A (en) * | 2019-10-22 | 2019-12-20 | 湖南五新隧道智能装备股份有限公司 | Telescopic sliding platform and trolley comprising same |
-
2007
- 2007-03-07 CN CNU2007200055226U patent/CN201047258Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033114A (en) * | 2013-03-06 | 2014-09-10 | 中国石油天然气股份有限公司 | Supporting disc of oil pumping unit horsehead beam hanger |
| CN104033114B (en) * | 2013-03-06 | 2016-11-23 | 中国石油天然气股份有限公司 | Pumping unit horsehead polished rod eye props up support plate |
| CN110593910A (en) * | 2019-10-22 | 2019-12-20 | 湖南五新隧道智能装备股份有限公司 | Telescopic sliding platform and trolley comprising same |
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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: 20080416 Termination date: 20150307 |
|
| EXPY | Termination of patent right or utility model |