CN201162512Y - Offset-adjusting abrasion-proof sealing device of polished rod - Google Patents
Offset-adjusting abrasion-proof sealing device of polished rod Download PDFInfo
- Publication number
- CN201162512Y CN201162512Y CNU2008200049431U CN200820004943U CN201162512Y CN 201162512 Y CN201162512 Y CN 201162512Y CN U2008200049431 U CNU2008200049431 U CN U2008200049431U CN 200820004943 U CN200820004943 U CN 200820004943U CN 201162512 Y CN201162512 Y CN 201162512Y
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- CN
- China
- Prior art keywords
- packing
- sleeve
- sealing device
- packingset
- polished rod
- 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
The utility model relates to a polished rod offset anti-wear sealing device, consisting of a small pressure cap, a packing pressure pad assembly, a protective case, a tightening block, a packing group, a packing sleeve, a ball-end, a ball-end pressure cap, a ball-end seat, a pin, a small cylindrical packingset, a big cylindrical packingset, a packing cone and threads. The sealing device provided by the utility model is characterized in that the packing pressure pad assembly consists of the protective case and the tightening block; the packing group consists of the small cylindrical packingset, the big cylindrical packingset and the packing cone, which are connected in series and arranged inside the packing sleeve; the upper part of the external wall of the packing sleeve is provided with threads, while the lower part is a plane. The sealing device has the advantages that the replacement of the sealing packingset is convenient, the offset can be adjusted accurately within a big and small range, and the fastening part adopts an anti-theft structure, etc.
Description
One, technical field:
The utility model relates to the oil field pumping well wellhead assembly, is a kind of polished rod tuningout abrasionproof sealing device.
Two, background technology:
General at present use taper seal seals well head, by movable balls polished rod is carried out tuningout, has played certain effect to solving wellhead polish rod sealing and tuningout.But also there is certain problem: the one, polished rod is upper and lower mobile at well head, and is serious to sealing part abrasion, and seal needs often to change, and is easy to generate the well head crude oil leakage when changing seal; The 2nd, the polished rod tuningout need be loosening with securing member, be difficult to grasp, and especially when tuningout among a small circle, difficulty especially; The 3rd, securing member is quick detachable, provides convenience to the oil stealer.
Three, utility model content:
The purpose of this utility model is the concrete technical problem that exists at above-mentioned prior art, and a kind of polished rod tuningout abrasionproof sealing device with tuningout, abrasionproof, antitheft effect is provided.
Above-mentioned purpose is realized by following technical proposals.
By little pressure cap (1); packing pressure pad assembly (2); protective sleeve (3); tightening piece (4); packing group (5); packing sleeve (6); bulb (7); bulb pressure cap (8); ball cup (9); pin (10); pillar shape packing (11); big cylindricality packing (12); taper packing (13); screw thread (14) is formed; it is characterized in that: by protective sleeve (3); tightening piece (4) is formed packing pressure pad assembly (2); with by pillar shape packing (11); big cylindricality packing (12); taper packing (13) the packing group (5) that is in series; place in the packing sleeve (6); screw thread (14) is arranged at packing sleeve (6) outer wall top, and the bottom is the plane.
Because the utility model has been taked technique scheme, compared with prior art, has the following advantages.
1, adopts packing sleeve screw thread on the big nut, make things convenient for sealed packing to change;
2, tuningout can accurately be aligned in large and small scope;
3, fastening part adopts theft-prevention structure, and the crude oil phenomenon effectively avoids theft.
Four, description of drawings:
Fig. 1 is a structural representation of the present utility model.
Wherein: little pressure cap 1, packing pressure pad assembly 2, protective sleeve 3, tightening piece 4, packing group 5, packing sleeve 6, bulb 7, bulb pressure cap 8, ball cup 9, pin 10, pillar shape packing 11, big cylindricality packing 12, taper packing 13, screw thread 14.
Five, the specific embodiment:
Below in conjunction with accompanying drawing this utility model example is described in detail.
By little pressure cap (1); packing pressure pad assembly (2); protective sleeve (3); tightening piece (4); packing group (5); packing sleeve (6); bulb (7); bulb pressure cap (8); ball cup (9); pin (10); pillar shape packing (11); big cylindricality packing (12); taper packing (13); screw thread (14) is formed; it is characterized in that: by protective sleeve (3); tightening piece (4) is formed packing pressure pad assembly (2); with by pillar shape packing (11); big cylindricality packing (12); taper packing (13) the packing group (5) that is in series; place in the packing sleeve (6); screw thread (14) is arranged at packing sleeve (6) outer wall top, and the bottom is the plane.
Check polished rod before installing, last layer butter or machine oil in the above are in case dry grinding;
Successively with pillar shape packing (11), big cylindricality packing (12), taper packing (13) string packing group (5) together, pack in the packing sleeve (6), be inserted in polished rod, again ball cup (9) is connected with well head and tighten, press the packing pressure pad assembly of forming by protective sleeve (3), tightening piece (4) (2), press little pressure cap (1) at last, after putting a well on, rotate little pressure cap (1) and do suitable adjustment, till non-leakage oil;
Ball cup (9) is when connecting with well head, and pipe wrench is stuck in the bottom of ball cup (9), and the unavailable pipe wrench in other position is twisted;
Bulb pressure cap (8) is joint up and down, oil impregnate or bulb (7) appear when moving up and down with polished rod, should unclamp two pins (10) earlier, can bulb pressure cap (8) tighten to by turning clockwise non-leakage till, do not want overtorquing, in order to avoid influence automatic deflection adjusting, at last two pins (10) are tightened.
After operation a period of time, add packing if desired, need not carry out emptying to pipeline and put pressure (3Mpa is following), after the stop pumping, after earlier little pressure cap (1) being screwed clockwise, unclamp again, with arriving on the big nut on the screw thread (14) of packing sleeve (6) outer wall, downward more twisting, packing sleeve (6) just and then upwards promotes, until taking out easily, its advantage is, conveniently take the taper packing (13) that has damaged away, simultaneously according to circumstances add new packing get final product, littler pressure cap (1) is screwed (attention: can not overtorquing).
Claims (1)
1; a kind of polished rod tuningout abrasionproof sealing device; by little pressure cap (1); packing pressure pad assembly (2); protective sleeve (3); tightening piece (4); packing group (5); packing sleeve (6); bulb (7); bulb pressure cap (8); ball cup (9); pin (10); pillar shape packing (11); big cylindricality packing (12); taper packing (13); screw thread (14) is formed; it is characterized in that: by protective sleeve (3); tightening piece (4) is formed packing pressure pad assembly (2); with by pillar shape packing (11); big cylindricality packing (12); taper packing (13) the packing group (5) that is in series; place in the packing sleeve (6); screw thread (14) is arranged at packing sleeve (6) outer wall top, and the bottom is the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200049431U CN201162512Y (en) | 2008-03-17 | 2008-03-17 | Offset-adjusting abrasion-proof sealing device of polished rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200049431U CN201162512Y (en) | 2008-03-17 | 2008-03-17 | Offset-adjusting abrasion-proof sealing device of polished rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162512Y true CN201162512Y (en) | 2008-12-10 |
Family
ID=40183450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200049431U Expired - Fee Related CN201162512Y (en) | 2008-03-17 | 2008-03-17 | Offset-adjusting abrasion-proof sealing device of polished rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162512Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958431A (en) * | 2017-05-02 | 2017-07-18 | 荆州市翔龙石油科技有限公司 | A kind of environmental-protecting and high-efficient type polished rod sealer and its packing replacing method |
| CN107131348A (en) * | 2017-05-23 | 2017-09-05 | 广船国际有限公司 | Valve rod support meanss |
-
2008
- 2008-03-17 CN CNU2008200049431U patent/CN201162512Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958431A (en) * | 2017-05-02 | 2017-07-18 | 荆州市翔龙石油科技有限公司 | A kind of environmental-protecting and high-efficient type polished rod sealer and its packing replacing method |
| CN106958431B (en) * | 2017-05-02 | 2023-03-14 | 荆州市翔龙石油科技有限公司 | Environment-friendly efficient polished rod sealer and packing replacing method thereof |
| CN107131348A (en) * | 2017-05-23 | 2017-09-05 | 广船国际有限公司 | Valve rod support meanss |
| CN107131348B (en) * | 2017-05-23 | 2019-04-26 | 广船国际有限公司 | Valve rod support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20110317 |