CN204371192U - A kind of oil pumping machine well head packing box - Google Patents
A kind of oil pumping machine well head packing box Download PDFInfo
- Publication number
- CN204371192U CN204371192U CN201420758524.2U CN201420758524U CN204371192U CN 204371192 U CN204371192 U CN 204371192U CN 201420758524 U CN201420758524 U CN 201420758524U CN 204371192 U CN204371192 U CN 204371192U
- Authority
- CN
- China
- Prior art keywords
- polished rod
- packing box
- well head
- oil pumping
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 71
- 238000005086 pumping Methods 0.000 title claims abstract description 38
- 210000004907 gland Anatomy 0.000 claims abstract description 24
- 239000004519 grease Substances 0.000 claims abstract description 12
- 210000002445 nipple Anatomy 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000006071 cream Substances 0.000 claims description 12
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 27
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000003442 weekly effect Effects 0.000 description 2
- 101100366060 Caenorhabditis elegans snap-29 gene Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of polished rod righting circle and oil pumping machine well head packing box, belong to oil field equipment field.Described oil pumping machine well head packing box is used for sealing and righting polished rod, and described oil pumping machine well head packing box comprises box body, gland, fixed screw, O shape circle, grease nipple, polished rod righting circle and packing box pressing cap.Described polished rod center and described oil pumping machine well head packing box center conllinear is made by described polished rod righting circle, polished rod eccentric wear in packing box is avoided to cause polished rod and packing to damage, not only add the packing life-span, and avoid the oily problem of race, in addition, it is simple that the utility model also has structure, and it is convenient to install, cost-saving, be beneficial to the advantage of popularization.
Description
Technical field
The utility model relates to oil field equipment field, particularly a kind of oil pumping machine well head packing box.
Background technology
Oil pumping machine well head packing box is the sealing device of oil field shaft mouth polished rod.
At present, well head adopts the oil pumping machine well head packing box with self-lubricating function usually.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Because existing oil pumping machine well head packing box lacks righting function, when well head is inclined, polished rod moves up and down, and causes eccentric wear, makes packing side serious wear, not only affects the packing life-span, and causes running oil, causes environment pollution.And the oil well of interval fluid, particularly not fluid period, polished rod moves up and down and packing can be caused to dry grind and badly damaged, frequently need change packing, on average change a packing weekly, not only increase labour intensity and cost payout, and affecting rate when driving a well, impact is normally produced.
Utility model content
In order to solve prior art due to well head inclined, cause oil-extractor polish-rod dry grind, affect the packing life-span, and the problem causing race oily, the utility model embodiment provides a kind of oil pumping machine well head packing box.Described technical scheme is as follows:
A kind of oil pumping machine well head packing box, for sealing and righting polished rod, described oil pumping machine well head packing box comprises box body, gland, fixed screw, O shape circle, grease nipple, polished rod righting circle and packing box pressing cap,
Described box body top is provided with circular groove in turn, shoe cream room and righting circle mounting groove, described box body bottom is provided with pressure cap mounting groove, described gland is arranged on above described shoe cream room, described O shape circle is arranged in described circular groove, described fixed screw is through described gland, described O shape circle is compressed by described fixed screw and described gland, described grease nipple is arranged on described box portion outside, described grease nipple communicates with described shoe cream room, described polished rod righting circle is arranged in described righting circle mounting groove, described polished rod righting circle and described polished rod matched in clearance, described polished rod center and described oil pumping machine well head packing box center conllinear is made by described polished rod righting circle, described packing box pressing cap is arranged in pressure cap mounting groove.
Preferably, described righting circle mounting groove is arranged on the centre position of described oil pumping machine well head packing box inside.
Preferably, described polished rod righting circle is revolving structure.
Preferably, described polished rod righting circle is cirque structure.
Preferably, described polished rod righting circle external diameter 55 millimeters, described polished rod righting circle internal diameter is 30 millimeters, and described polished rod righting circle thickness is 15 millimeters.
Preferably, described polished rod righting circle is split and two valve structures of symmetry.
Preferably, described polished rod righting circle adopts nylon material to make.
Preferably, described gland is split and two of symmetry semicircle glands.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The utility model makes described polished rod center and described oil pumping machine well head packing box center conllinear by described polished rod righting circle, polished rod eccentric wear in packing box is avoided to cause polished rod and packing to damage, not only add the packing life-span, and avoid the oily problem of race, in addition, it is simple that the utility model also has structure, and it is convenient to install, cost-saving, be beneficial to the advantage of popularization.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the oil pumping machine well head packing box that the utility model embodiment provides.
In figure, each symbol represents that implication is as follows:
1, gland;
2, fixed screw;
3, O shape circle;
4, grease nipple;
5, polished rod righting circle;
6, packing box pressing cap;
7, box body;
71, circular groove; 72, shoe cream room; 73, righting circle mounting groove; 74, pressure cap mounting groove.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, the utility model provides a kind of oil pumping machine well head packing box, for sealing and righting polished rod (not drawing in figure), described oil pumping machine well head packing box comprises box body 7, gland 1, fixed screw 2, O shape circle 3, grease nipple 4, polished rod righting circle 5 and packing box pressing cap 6
Described box body 7 top is provided with circular groove 71 in turn, shoe cream room 72 and righting circle mounting groove 73, described box body 7 bottom is provided with pressure cap mounting groove 74, described gland 1 is arranged on above described shoe cream room 72, described O shape circle 3 is arranged in described circular groove 71, described fixed screw 2 is through described gland 1, described O shape circle 3 is compressed by described fixed screw 2 and described gland 1, it is outside that described grease nipple 4 is arranged on described box body 7, described grease nipple 4 communicates with described shoe cream room 72, described polished rod righting circle 5 is arranged in described righting circle mounting groove 73, described polished rod righting circle 5 and described polished rod matched in clearance, described polished rod center and described oil pumping machine well head packing box center conllinear is made by described polished rod righting circle 5, described packing box pressing cap 6 is arranged in pressure cap mounting groove 74.
The utility model use procedure:
Preload is laid down under the state that oil pumper (not drawing in figure) is stopped transport, polished rod eye, square clamp are separated polished rod (not drawing in figure), twist off anti-raising one's hat, described box body 7 is inserted in from polished rod top, install packing (not drawing in figure) in box body 7 and after blue (not drawing in figure), again polished rod righting circle 5 is put into righting trough, O shape circle 3 loads in the circular groove 71 under gland 1, the fixed screw 2 tightened on gland 1 compresses O shape circle 3, again butter and machine oil are added in shoe cream room 72 in proportion, can oil pumper be started shipment.
The utility model adds polished rod righting circle 5 in original self-lubricating packing box inside.When oil pumping machine well head is inclined, polished rod righting circle 5 is utilized to make polished rod remain on packing box center, polished rod and packing is caused to damage to prevent polished rod eccentric wear in packing box, not only add the packing life-span, and avoid the oily problem of race, utilize the grease of shoe cream room 72 inside simultaneously, when polished rod runs up and down, to polished rod righting circle 5 lubrication cooling, polished rod righting circle 5 is made to reach cooling and the lubricant effect of the best, to extend the application life of polished rod and packing.
Closer, oil pumping machine well head packing box described in the utility model can play centralizing function effectively in oil-extractor polish-rod runs up and down, and have cooling and lubrication well, oil-extractor polish-rod of thoroughly overcoming over is dry grinded the present situation of the badly damaged frequent replacing of packing caused, extend to every three months from average replacing weekly packing to change once, alleviate the labour intensity of employee, add the application life of packing, shorten and stop the well time, rate when improve the start of oil well, reduces cost payout.
Because being provided with in packing box pressing cap 6 internal construction every blue and packing, be isolated from the outside out by borehole pressure by them, therefore the rising of well head pressure has no effect to the utility model.
In addition, the utility model also has that structure is simple, and it is convenient to install, cost-saving, operates nimble, practical and be convenient to the feature that manufactures, and therefore the utility model is beneficial to popularization.
Preferably, described righting circle mounting groove 73 is arranged on the centre position of described oil pumping machine well head packing box inside.Make polished rod righting circle 5 be positioned at the centre position of described oil pumping machine well head packing box inside by said structure, ensure that the center position that polished rod is positioned at described oil pumping machine well head packing box all the time slides up and down.
Preferably, described polished rod righting circle 5 is revolving structure.Make structure simple, be easy to processing.
Preferably, described polished rod righting circle 5 is cirque structure.Make structure simple, be easy to processing and manufacturing.
Preferably, described polished rod righting circle 5 external diameter 55 millimeters, described polished rod righting circle 5 internal diameter is 30 millimeters, and described polished rod righting circle 5 thickness is 15 millimeters.Because common polished rod diameter is φ 28 millimeters, described polished rod righting circle 5 reaches best fit with described polished rod, is convenient to polished rod and is fixed on the center of packing box.
Certainly, those of ordinary skill in the art are known, are replaceable accessory, can change described polished rod righting circle 5 internal diameter, ensure that the versatility of described oil pumping machine well head packing box according to the diameter of polished rod.
Preferably, described polished rod righting circle 5 is split and two valve structures of symmetry.By said structure, be convenient to described polished rod righting circle 5 to be mounted to described oil pumping machine well head packing box centre position.
Preferably, described polished rod righting circle 5 adopts nylon material to make.Make described polished rod righting circle 5 abrasion resistance high, long service life,
Certainly, those of ordinary skill in the art are known, and described polished rod righting circle 5 can also adopt other high-abrasive materials to make, as long as meet its designing requirement.
Preferably, described gland 1 is split and two of symmetry semicircle glands.By gland 1 being made into two semicircle gland docking structures, being not only convenient to dismounting and change O shape circle 3, and being convenient to effectively releasing of pressure after packing damages.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an oil pumping machine well head packing box, for sealing and righting polished rod, it is characterized in that, described oil pumping machine well head packing box comprises box body, gland, fixed screw, O shape circle, grease nipple, polished rod righting circle and packing box pressing cap,
Described box body top is provided with circular groove in turn, shoe cream room and righting circle mounting groove, described box body bottom is provided with pressure cap mounting groove, described gland is arranged on above described shoe cream room, described O shape circle is arranged in described circular groove, described fixed screw is through described gland, described O shape circle is compressed by described fixed screw and described gland, described grease nipple is arranged on described box portion outside, described grease nipple communicates with described shoe cream room, described polished rod righting circle is arranged in described righting circle mounting groove, described polished rod righting circle and described polished rod matched in clearance, described polished rod center and described oil pumping machine well head packing box center conllinear is made by described polished rod righting circle, described packing box pressing cap is arranged in pressure cap mounting groove.
2. oil pumping machine well head packing box according to claim 1, is characterized in that, described righting circle mounting groove is arranged on the centre position of described oil pumping machine well head packing box inside.
3. oil pumping machine well head packing box according to claim 1, is characterized in that, described polished rod righting circle is revolving structure.
4. oil pumping machine well head packing box according to claim 1, is characterized in that, described polished rod righting circle is cirque structure.
5. oil pumping machine well head packing box according to claim 4, is characterized in that, described polished rod righting circle external diameter 55 millimeters, and described polished rod righting circle internal diameter is 30 millimeters, and described polished rod righting circle thickness is 15 millimeters.
6. oil pumping machine well head packing box according to claim 1, is characterized in that, described polished rod righting circle is split and two valve structures of symmetry.
7. oil pumping machine well head packing box according to claim 1, is characterized in that, described polished rod righting circle adopts nylon material to make.
8. the oil pumping machine well head packing box according to any one of claim 1-7 claim, is characterized in that, described gland is split and two of symmetry semicircle glands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758524.2U CN204371192U (en) | 2014-12-04 | 2014-12-04 | A kind of oil pumping machine well head packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758524.2U CN204371192U (en) | 2014-12-04 | 2014-12-04 | A kind of oil pumping machine well head packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371192U true CN204371192U (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420758524.2U Expired - Fee Related CN204371192U (en) | 2014-12-04 | 2014-12-04 | A kind of oil pumping machine well head packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798083A (en) * | 2019-02-27 | 2019-05-24 | 中国石化江汉油田分公司江汉采油厂 | A kind of rotatable Buddhist nun of flap-type helps wellhead packing box and its application method |
-
2014
- 2014-12-04 CN CN201420758524.2U patent/CN204371192U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798083A (en) * | 2019-02-27 | 2019-05-24 | 中国石化江汉油田分公司江汉采油厂 | A kind of rotatable Buddhist nun of flap-type helps wellhead packing box and its application method |
| CN109798083B (en) * | 2019-02-27 | 2021-04-27 | 中国石油化工股份有限公司 | Petal type rotatable damping wellhead packing box and use method thereof |
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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: 20150603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |