CN2561918Y - Sucking polish rod stuffing box against off abrasion - Google Patents
Sucking polish rod stuffing box against off abrasion Download PDFInfo
- Publication number
- CN2561918Y CN2561918Y CN 02234640 CN02234640U CN2561918Y CN 2561918 Y CN2561918 Y CN 2561918Y CN 02234640 CN02234640 CN 02234640 CN 02234640 U CN02234640 U CN 02234640U CN 2561918 Y CN2561918 Y CN 2561918Y
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- polished rod
- seal receptacle
- eccentric wear
- fittings body
- 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 stuffing box of an oil pumping polished rod for anti-eccentric wear is provided, which solves the eccentric wear problems of the oil pumping polished rod of a pumped well to the stuffing box. The stuffing box is characterized in that: a centralizing sleeve arranged in a connector body makes a polished rod centering in the stuffing box, and a telescoping head axially compress a ball type seal ring to close the well through the circum rotation of a cone gear. The stuffing box has the advantages of tight well closing, long service life of packing set without damaging the polished rod and the stuffing box, in addition, the stuffing box is suitable for arrangement and use of the rod pumped well mouths with different types.
Description
Technical field the utility model belongs to a kind of eccentric wear prevention pumping polished rod stuffing box.Background technology is present, the oil pumping polish rod packing box that oilfield pumping well is used, itself do not have the oil pumping polish rod of preventing eccentric wear function, the problem of Cun Zaiing has like this: 1. packing is short application life, and sealing effectiveness is poor, because polished rod off-centre, polished rod is close to packing one side during work, cause packing unbalance stress, quick abrasion, therefore, need often tighten gland or replacing packing and can prevent that just profit from leaking.Labour intensity is big when 2. changing packing.Be subjected to the influence of the eccentric present position of polished rod, need firmly set upright polished rod when changing packing and just can finish, it is very inconvenient to operate.3. damage the parts on polished rod and the packing box easily, wearing and tearing take place and cause polished rod to damage, the consequence that packing box can't operate as normal.
Summary of the invention
A kind of eccentric wear prevention pumping polished rod stuffing box, it is by being contained in pressure cap, the gland above the mobile and being connected compacting ring, the seal receptacle of mobile lower end and being contained in spherical closed-loop in the seal receptacle, be contained in the compositions such as angular wheel assembly of seal receptacle lower end, the screw thread combination of seal receptacle by fittings body, compacting ring is connected below the mobile; Be connected to an angular wheel in the telescopic head outside by screw thread, be set with lining successively at the fittings body inner chamber, set upright sliding sleeve, outside supporting seat, be welded with the awl pole socket.
The seal receptacle with 4 O shapes circle that matches of shape with it is housed in mobile's lower end annular sphere, spherical closed-loop is housed in the seal receptacle, the external screw thread on its outer top through fittings body matches with compacting ring.Fittings body one side vertically is welded with the awl pole socket of dress awl tooth connecting rod in, is embedded with three road O shape circles between them; The inner end tooth portion of awl tooth connecting rod matches with the tooth portion of conical tooth, and drives the lifting vertically of conical tooth drive telescopic head, and compressible spherical closed-loop.On the inboard of fittings body, baffle ring, ecto-entad is set with lining one by one, sets upright sliding sleeve.
The utility model compared with prior art has the following advantages: (1) sets upright sliding sleeve owing to being provided with, stoped the eccentric wear of Polish rod packing within the specific limits and to the wearing and tearing of packing box, solved the polished rod surface damage, leakage, frequent operation, the packing that cause because of the polished rod eccentric wear in the prior art and problem such as can't change.(2) with spherical sealing shut-in well, more effective than packing seal in the prior art.And self-centering in the shut-in well process.The lower end spheroid of mobile matches with major diameter, short ball face, dwindled the physical dimension of device, the packing cavity in the mobile of increase can improve the packing_seal performance like this, enlarge the installation and the scope of application of packing box, also give the packing condition that offers convenience of changing simultaneously.
Description of drawings
Fig. 1 is the sectional view of direction of axis line of the present utility model.
The specific embodiment
As shown in Figure 1, this packing box by shunt in a well, set upright, polished rod seal three part-structures form.Wherein the shut-in well part is made up of fittings body 2, awl tooth connecting rod 8, angular wheel 13, supporting seat 6, seal receptacle 17, spherical closed-loop 16, telescopic head 12 and miniature lever 9.The endoporus of angular wheel 13 has saw-tooth thread connecting a telescopic head 12, the small end of awl tooth connecting rod 8 inserts telescopic head 12 opening parts, play the guiding role, the big end of telescopic head 12 enters annular seal space along seal receptacle 17 inner conical surfaces, and move up and down the compression spherical closed-loop 16, spherical closed-loop 16 is to be made by oil resistant rubber, the middle oil pumping polish rod that passes through during installation; Polished rod seal is made up of mobile 19, packing 20, pressure cap 22 and gland 21; packing 20 is the turn formula airtight and watertight paddings that have wearing layer; can prolong the application life of packing; set upright part by set upright sliding sleeve 3, village cover 4, baffle ring 1 is formed by fittings body 2 and supporting seat 6; setting upright sliding sleeve 3 usefulness carbide alloy makes; lining 4 usefulness nylon are made, and are used for protecting setting upright sliding sleeve 3.Mobile 19 lower ends are connected by living of compacting ring 14 by the sphere that matches realizes corner.
Shut-in well: small handle with sleeve 9, telescopic head 12 upwards rotates the spherical closed-loop 16 of compression, seals above-mentioned annular seal space, realizes band pressure shut-in well down.Change packing: press earlier the aforesaid operations shut-in well, open gland 21 then and change packing, compress gland assembly 21 after finishing again, when packing reaches sealing state, unclamp miniature lever to original operating position, thereby finish opening process one time.Adjust corner: unclamp compacting ring 14, behind the corner that adjustment mobile 19 and polished rod adapt pressure collar 14 is compressed.Wherein 7 bore pole sockets, 10 alignment pins, 15,18 O type circles, 22 pressure caps.The lower end that this packing box is installed is the standard oil gas thread, can directly be connected with well head, or connect by standard box cupling, joint.As seen, this eccentric wear prevention pumping polished rod stuffing box has that shut-in well is tight, the packing long service life, do not damage the advantage of polished rod and packing box, and is fit to multi-form oil pumper well head and installs and uses.
Claims (4)
1, a kind of eccentric wear prevention pumping polished rod stuffing box, it is by being contained in pressure cap, the gland above the mobile and being connected compacting ring, the seal receptacle of mobile lower end and being contained in spherical closed-loop in the seal receptacle, be contained in the compositions such as angular wheel assembly of seal receptacle lower end, it is characterized in that: the screw thread combination of seal receptacle (17) by fittings body (2), compacting ring (14) is connected below the mobile (19); Be connected to an angular wheel (13) in telescopic head (12) outside by screw thread; Be set with lining (4) successively at fittings body (2) inner chamber, set upright sliding sleeve (3); Be welded with awl pole socket (7) in supporting seat (6) outside.
2, a kind of eccentric wear prevention pumping polished rod stuffing box as claimed in claim 1, it is characterized in that: a shape seal receptacle (17) with 4 O shapes circle that will coincide with it is housed in mobile (19) lower end annular sphere, spherical closed-loop (16) is housed in the seal receptacle (17), and the external screw thread on its outer top through fittings body (2) matches with compacting ring (14).
3, a kind of eccentric wear prevention pumping polished rod stuffing box as claimed in claim 1 is characterized in that: fittings body (2) one sides vertically are welded with the awl pole socket (7) of dress awl tooth connecting rod (8) in, are embedded with three road O shape circles between (7) and (8); The inner end tooth portion of awl tooth connecting rod (8) matches with the tooth portion of conical tooth (13), and drives the lifting vertically of conical tooth (13) drive telescopic head (12), and compressible spherical closed-loop (16).
4, a kind of eccentric wear prevention pumping polished rod stuffing box as claimed in claim 1 is characterized in that: on the inboard of fittings body (2), baffle ring (1), ecto-entad is set with lining (4) one by one, sets upright sliding sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234640 CN2561918Y (en) | 2002-04-30 | 2002-04-30 | Sucking polish rod stuffing box against off abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234640 CN2561918Y (en) | 2002-04-30 | 2002-04-30 | Sucking polish rod stuffing box against off abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561918Y true CN2561918Y (en) | 2003-07-23 |
Family
ID=33709368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02234640 Expired - Fee Related CN2561918Y (en) | 2002-04-30 | 2002-04-30 | Sucking polish rod stuffing box against off abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561918Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756598A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Polished rod sealing device |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
-
2002
- 2002-04-30 CN CN 02234640 patent/CN2561918Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756598A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Polished rod sealing device |
| CN105756598B (en) * | 2014-12-17 | 2018-07-13 | 中国石油天然气股份有限公司 | Polished rod sealer |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN116717211B (en) * | 2023-08-10 | 2023-11-28 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
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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 |