CN209195327U - A kind of hydraulic polish rod seal device of trailing type - Google Patents
A kind of hydraulic polish rod seal device of trailing type Download PDFInfo
- Publication number
- CN209195327U CN209195327U CN201821797220.1U CN201821797220U CN209195327U CN 209195327 U CN209195327 U CN 209195327U CN 201821797220 U CN201821797220 U CN 201821797220U CN 209195327 U CN209195327 U CN 209195327U
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- China
- Prior art keywords
- packing
- ring
- tapered
- pressure cap
- wall cylinder
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Abstract
The utility model relates to technical field of mechanical oil extraction, especially a kind of hydraulic polish rod seal device of trailing type.The utility model solves the problems, such as that polish rod seal device packing compression tension leads to that the service life is low, overall sealing performance is poor and lacks tuningout aligning function.The utility model is made of connector (1), ball seal circle (2), big nut (3), sphere (4), packing pedestal (5), O-ring seal (6), nut (7), outer wall cylinder (8), packing gland (9), handle (10), dustband (11), metal pressure cap (12), lubrication ring (13), nylon pressure cap (14), tapered packing one (15), tapered packing two (16), wear ring (17) and floating ring (18)；The utility model has many advantages, such as that design is scientific and reasonable, easy for installation, can extend polish rod seal device service life to greatest extent, reduce wellhead assembly failure rate to reach cost efficiency.
Description
Technical field
The utility model relates to technical field of mechanical oil extraction, especially a kind of hydraulic polish rod seal device of trailing type.
Background technique
Packing box is the well mouth sealing device for sealing oil pipe and polished rod annular space, conventional packing box be by box body and
Annular packing sealing structure composition, does not have automatic deflection adjusting aligning function.Polished rod, which constantly pumps, makes sealing device
Abrasion, aging are serious, or even lose sealing function, and often replacement is not only time-consuming and laborious can also seriously affect production time efficiency.It is existing
Patent CN02273558.5 Self-adjusting theftproof packing kit, the disadvantage is that packing is easy to wear, service life is short.
Summary of the invention
The purpose of the utility model is to provide can be improved sealing performance, packing abrasion is effectively reduced, packing is improved and using
Service life, and have a kind of hydraulic polish rod seal device of trailing type of tuningout aligning function.
To achieve the goals above, the utility model adopts the following technical solution: a kind of hydraulic polished rod seal dress of trailing type
Set it by connector, ball seal circle, big nut, sphere, packing pedestal, O-ring seal, nut, outer wall cylinder, packing gland,
Handle, dustband, metal pressure cap, lubrication ring, nylon pressure cap, tapered packing one, tapered packing two, wear ring and floating ring group
At；Wherein ball seal circle is placed in connector groove, and connector and big nut are threadedly coupled, and sphere is placed in big nut
It is interior, and connect by ball seal circle with connector, sphere is connect with packing whorl of base, is put between packing pedestal and outer wall cylinder
O-ring seal, packing pedestal are connected with nut thread, and nut and outer wall cylinder connect, be sequentially placed into outer wall cylinder floating ring,
Tapered packing two, tapered packing one, wear ring, nylon pressure cap, lubrication ring and metal pressure cap,
Packing gland and outer wall cylinder are threadedly coupled, and handle is welded on packing gland two sides.
Sphere material uses 304 stainless steels.
Wear ring uses nylon material, is separately mounted in the groove of tapered packing one and tapered packing two, tapered packing
One, tapered packing two and wear ring form multi-stage taper sealing structure, which is put into outer wall cylinder, in the sealing structure
It is lower to be connected respectively with nylon pressure cap and floating ring.
Compared with the prior art the utility model has the advantage that
1) conventional annular packing_seal is replaced by using the multi-stage taper sealing structure that tapered packing and wear ring form
Structure, when polished rod is pumped, which can be compressed and be loosened respectively, effectively improve the wear-resisting of packing and
Sealing performance.
2) pass through the selection of cone-shaped seal structure unlike material, wherein tapered packing uses nylon using rubber, wear ring,
The abrasion that packing can be effectively reduced, improves service life.
3) by increasing ball seal circle and sphere structure, the device can be made hole angle is excessive, polished rod performance load
Both it fluctuates under the bad working environments such as larger, wax deposition is serious, has the function of automatic deflection adjusting, reduce the abrasion of polished rod and packing, extend
Service life.
4) by increasing the interstitial structure between packing pedestal and outer wall cylinder, in the case where polished rod and well head misalign,
Outer wall cylinder can be made to be carried out in aligning pair in the movable range of packing pedestal, prevent the generation of polished rod and packing friction phenomenon,
Enhance global reliability.
Detailed description of the invention: Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1- connector, 2- ball seal circle, 3- big nut, 4- sphere, 5- packing pedestal, 6-O type sealing ring, 7-
Nut, 8- outer wall cylinder, 9- packing gland, 10- handle, 11- dustband, 12- metal pressure cap, 13- lubrication ring, 14- nylon pressure cap,
15- tapered packing one, 16- tapered packing two, 17- wear ring, 18- floating ring.
Specific embodiment: the utility model is described in further detail with reference to the accompanying drawing: the utility model is by connector
1, ball seal circle 2, big nut 3, sphere 4, packing pedestal 5, O-ring seal 6, nut 7, outer wall cylinder 8, packing gland 9, handle
10, dustband 11, metal pressure cap 12, lubrication ring 13, nylon pressure cap 14, tapered packing 1, tapered packing 2 16, wear ring 17
And floating ring 18 forms；Wherein ball seal circle 2 is placed in 1 groove of connector, and connector 1 and big nut 3 are threadedly coupled, ball
Body 4 is placed in big nut 3, and is connect by ball seal circle 2 with connector 1, and sphere 4 is threadedly coupled with packing pedestal 5, disk
O-ring seal 6 is put between foundation seat 5 and outer wall cylinder 8, packing pedestal 5 and nut 7 are threadedly coupled, and nut 7 is contacted with outer wall cylinder 8
Connection, be sequentially placed into outer wall cylinder 8 floating ring 18, tapered packing 2 16, tapered packing 1, wear ring 17, nylon pressure cap 14,
Ring 13 and metal pressure cap 12 are lubricated, packing gland 9 and outer wall cylinder 8 are threadedly coupled, and handle 10 is welded on 9 two sides of packing gland.
4 material of sphere uses 304 stainless steels.
Wear ring 17 uses nylon material, is separately mounted in the groove of tapered packing 1 and tapered packing 2 16, bores
Shape packing 1, tapered packing 2 16 and wear ring 17 form multi-stage taper sealing structure, which is put into outer wall cylinder 8
Interior, which is connected with nylon pressure cap 14 and floating ring 18 respectively up and down.
Scene is completed in use, the utility model is all assembled, and smears screw thread special glue in each screwing position,
Integral installation is on blowout preventer.When well head needs tuningout, sphere 4 can be adjusted in 3 scope of activities of big nut；When well head needs
When aligning, outer wall cylinder 8 can be adjusted in 5 scope of activities of packing pedestal；During polished rod upstroke, Produced Liquid flows through connection
First 1, the annular space in ball seal circle 2, sphere 4 and packing pedestal 5, acts on tapered packing 1, tapered packing 2 16
In the multi-stage taper sealing structure formed with wear ring 17, make its compression that there is better seal performance；In polished rod downward movement
In the process, which restores to original relaxed state, reduces itself and bears load.The utility model is by sphere 4 and greatly
Being used cooperatively for nut 3 and outer wall cylinder 8 and packing pedestal 5, can effectively carry out tuningout and aligning behavior, pass through tapered packing one
15, tapered packing 2 16 is used cooperatively with wear ring 17, be can effectively improve sealing structure performance, is prolonged the service life, and is reduced
Environmental pollution and the waste of crude resources.
Claims (3)
1. a kind of hydraulic polish rod seal device of trailing type, it is characterised in that: it is by connector (1), ball seal circle (2), big spiral shell
Female (3), sphere (4), packing pedestal (5), O-ring seal (6), nut (7), outer wall cylinder (8), packing gland (9), handle
(10), dustband (11), metal pressure cap (12), lubrication ring (13), nylon pressure cap (14), tapered packing one (15), tapered packing
Two (16), wear ring (17) and floating ring (18) composition；Wherein ball seal circle (2) is placed in connector (1) groove, connection
Head (1) and big nut (3) are threadedly coupled, and sphere (4) is placed in big nut (3), and pass through ball seal circle (2) and connector
(1) it connects, sphere (4) is threadedly coupled with packing pedestal (5), puts O-ring seal between packing pedestal (5) and outer wall cylinder (8)
(6), packing pedestal (5) and nut (7) are threadedly coupled, and nut (7) and outer wall cylinder (8) connect, and are successively put in outer wall cylinder (8)
Enter floating ring (18), tapered packing two (16), tapered packing one (15), wear ring (17), nylon pressure cap (14), lubrication ring (13)
And metal pressure cap (12), packing gland (9) and outer wall cylinder (8) are threadedly coupled, handle (10) is welded on packing gland (9) two sides.
2. the hydraulic polish rod seal device of a kind of trailing type according to claim 1, it is characterised in that: sphere (4) material is adopted
With 304 stainless steels.
3. the hydraulic polish rod seal device of a kind of trailing type according to claim 1, it is characterised in that: wear ring (17) uses
Nylon material is separately mounted in the groove of tapered packing one (15) and tapered packing two (16), tapered packing one (15), taper
Packing two (16) and wear ring (17) form multi-stage taper sealing structure, which is put into outer wall cylinder (8), the sealing knot
Structure is connected with nylon pressure cap (14) and floating ring (18) respectively up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797220.1U CN209195327U (en) | 2018-11-02 | 2018-11-02 | A kind of hydraulic polish rod seal device of trailing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821797220.1U CN209195327U (en) | 2018-11-02 | 2018-11-02 | A kind of hydraulic polish rod seal device of trailing type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195327U true CN209195327U (en) | 2019-08-02 |
Family
ID=67410011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821797220.1U Active CN209195327U (en) | 2018-11-02 | 2018-11-02 | A kind of hydraulic polish rod seal device of trailing type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354986A (en) * | 2022-08-10 | 2022-11-18 | 鞍山捷高科技有限公司 | Polished rod sealing assembly |
-
2018
- 2018-11-02 CN CN201821797220.1U patent/CN209195327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354986A (en) * | 2022-08-10 | 2022-11-18 | 鞍山捷高科技有限公司 | Polished rod sealing assembly |
| CN115354986B (en) * | 2022-08-10 | 2023-10-03 | 鞍山捷高科技有限公司 | Polished rod sealing assembly |
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