CN208330255U - A kind of Separated well polished rod seal box - Google Patents
A kind of Separated well polished rod seal box Download PDFInfo
- Publication number
- CN208330255U CN208330255U CN201820897550.1U CN201820897550U CN208330255U CN 208330255 U CN208330255 U CN 208330255U CN 201820897550 U CN201820897550 U CN 201820897550U CN 208330255 U CN208330255 U CN 208330255U
- Authority
- CN
- China
- Prior art keywords
- pressure cap
- seal pressure
- seal
- lower body
- packing
- 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 is a kind of Separated well polished rod seal box that petroleum industry producing well uses, the packing in protection polished rod, protection seal box.This seal box includes sealing box body and packing, sealing box pressing cap includes seal pressure cap upper body and seal pressure cap lower body, seal pressure cap upper body is engaged with seal pressure cap lower body, upper platen, packing and upper padding plate are housed in seal pressure cap upper body, pressing disc, packing and lower bolster are housed in seal pressure cap lower body；It is also equipped with connecting cylinder in the joint of seal pressure cap upper body and seal pressure cap lower body, the top of seal pressure cap upper body is equipped with end cap, and the internal screw thread of seal pressure cap lower body is connect with sealing box body.The utility model can form two-stage seal protection, level-one lubrication protection, delicate structure to old-fashioned wellhead polish rod seal box, because having not been changed the structure of sealing box body; only change the structure of old-fashioned polished rod seal box pressing cap; the cost of investment is low, easy to implement, has good using effect.
Description
Technical field
The utility model relates to the polished rod seal box of petroleum industry well head, especially a kind of Split type well mouth polish rod
Seal box protects polished rod, protects the packing in seal box.
Background technique
Currently used for the wellhead polish rod seal box of crude oil production, also rests on how current structure is solved in design
On the problem of packing is worn.Packing is mounted in seal box, due to the manufacturing technology comparative maturity of seal box, is had been obtained wide
General promotion and application.If the seal box for designing new construction comes into operation and is the waste to original resource, so completely newly
Design seal box carries out replacement on a large scale and does not meet the principle for reducing production cost, but old-fashioned seal box is inclined in reply polished rod
Existing more problems above the problem of moving, trembleing, urgent need improve old-fashioned seal box.
Summary of the invention
The purpose of this utility model is to provide a kind of Separated well polished rod seal boxes, can be timely using this seal box
Offset and trembling that polished rod occurs during lifting from the top and puting down are corrected, the packing being mounted in seal box is protected.Prevent old-fashioned
The above-mentioned of seal box uses disadvantage, while not needing to put into very big cost, achievees the purpose that cost efficiency.
In order to achieve the above objectives, the utility model adopts the technical scheme that a kind of Separated well polished rod seal
Box includes sealing box body and packing, and sealing box pressing cap includes seal pressure cap upper body and seal pressure cap lower body, seal pressure cap upper body
It is engaged with seal pressure cap lower body, upper platen, packing and upper padding plate is housed in seal pressure cap upper body, filled in seal pressure cap lower body
There are pressing disc, packing and lower bolster；Connecting cylinder, sealing pressure are also equipped in the joint of seal pressure cap upper body and seal pressure cap lower body
The top of cap upper body is equipped with end cap, and the internal screw thread of seal pressure cap lower body is connect with sealing box body.
With the prior art, the utility model has the following beneficial effects: the utility model using seal pressure cap lower body with it is close
Jacket compresses original packing during connecting, and plays the role of primary seal；Had as gap bridge with it using connecting cylinder
Load impacting in offset vibration caused by some flexible characteristic buffering polished rod uplinks and decentralization；Using on seal pressure cap in vivo
Upper padding plate is installed, packing is blocked while sealing and moves down, when maintenance can eject upwards packing using tool；Utilize seal pressure cap
The packing installation cavity installation packing of upper body is simultaneously and end cap forms secondary seal in compaction process, carries out second level to polished rod seal box
Protection.It is full of lubricating grease using the lubricating cavity of seal pressure cap lower body, the polished rod moved up and down is lubricated, in order to lubricate seal pressure cap
Packing in the packing installation cavity of upper body prevents packing and polished rod from dry grinding.Using between seal pressure cap upper body and seal pressure cap lower body
Axial groove and the cooperation of axial bond, grafting form rotating self-locking mechanism, convenient for resisting the rotation of packing during the fastening process.This
Utility model can form two-stage seal protection, level-one lubrication protection, delicate structure, because not to old-fashioned wellhead polish rod seal box
The structure for changing sealing box body, only changes the structure of old-fashioned polished rod seal box pressing cap, and the cost of investment is low, is easy to real
It applies, meets the productive target of existing cost efficiency, there is good using effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that box pressing cap is sealed in the utility model.
Fig. 2 be Fig. 1 in D to structural schematic diagram.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing, not limits the protection scope of the utility model.It is as described below to be only
The preferred embodiment of the utility model, other use the equivalence changes of the utility model, should belong to the protection of the utility model
Range.
Referring to Fig. 1 and Fig. 2, a kind of Separated well polished rod seal box includes sealing box body and packing 10, seal box pressure
Cap includes seal pressure cap upper body 4 and seal pressure cap lower body 6, and seal pressure cap upper body 4 is engaged with seal pressure cap lower body 6, is pressed in sealing
Upper platen 2, packing 10 and upper padding plate 3 are housed in cap upper body 4, pressing disc 7, packing and underlay are housed in seal pressure cap lower body 6
Plate 8；Connecting cylinder 5, the top dress of seal pressure cap upper body 4 are also equipped in the joint of seal pressure cap upper body 4 and seal pressure cap lower body 6
There is end cap 1, the internal screw thread of seal pressure cap lower body 6 is connect with sealing box body.
The seal pressure cap upper body 4 is equipped with centre bore and packing installation cavity, lower part outer wall are equipped with axial bond or axial groove, disk
Upper platen 2, packing 10 and upper padding plate 3 are packed into root installation cavity；Seal pressure cap lower body 6 is equipped with centre bore and packing installation cavity, disk
Pressing disc 7, packing 10 and lower bolster 8 are packed into root installation cavity, the top inner circle of seal pressure cap lower body 6 is equipped with axial groove or axial direction
Key, the internal screw thread of the packing installation cavity of seal pressure cap lower body 6 are connect with sealing box body.
The lower part outer wall of the seal pressure cap upper body 4 and the top inner circle of seal pressure cap lower body 6 pass through axial groove or axial direction
Key grafting opposite can move up and down so that there are mobile surpluses between seal pressure cap upper body 4 and seal pressure cap lower body 6.
Behind the seal pressure cap upper body 4 and 6 grafting of seal pressure cap lower body, the top inner circle and pushing of seal pressure cap lower body 6
The cavity formed between disk 7 is lubricating cavity, and the shell wall of seal pressure cap lower body 6 corresponding with the lubricating cavity is equipped with lubrication hole, is somebody's turn to do
Lubrication hole is connect with grease nipple, can therefrom be injected butter and be lubricated packing therein and polished rod.
The appearance of the connecting cylinder 5 is in cydariform, is a kind of scalable made of compacting as cord and glue line interlayer
Compliant member.
The seal pressure cap upper body 4 and the junction of seal pressure cap lower body 6 and connecting cylinder 5 are equipped with sealing ring 9, at this
Connecting cylinder 5 outer wall be equipped with clip.Connecting cylinder 5 connect with seal pressure cap upper body 4 and seal pressure cap lower body 6 by clip and
It is fixed, sealing effect, carrying certain pressure can not only be enhanced, be also convenient for dismantling, make to repair more convenient.Also it can will connect
Cylinder 5 is connected through a screw thread with seal pressure cap upper body 4 and seal pressure cap lower body 6.
The end cap 1, seal pressure cap upper body 4, upper platen 2, packing 10, upper padding plate 3 and seal pressure cap lower body 6 push
The aperture of the centre bore of disk 7 and lower bolster 8 be equal to or greater than polished rod outer diameter.
The embodiment described above is only exemplary embodiments, but the utility model is not limited only to these embodiments, ability
The technical staff in domain can make modification under the spirit and enlightenment without departing from the utility model.Aspect disclosed herein may
In the presence of many changes, combination and modification, and all in the scope of the utility model, therefore, protection scope is not limited only to above
Explanation.
Claims (7)
1. a kind of Separated well polished rod seal box, including sealing box body and packing, characterized in that sealing box pressing cap includes close
Envelope pressure cap upper body and seal pressure cap lower body, seal pressure cap upper body are engaged with seal pressure cap lower body, are equipped in seal pressure cap upper body
Upper platen, packing and upper padding plate are equipped with pressing disc, packing and lower bolster in seal pressure cap lower body；Seal pressure cap upper body with
The joint of seal pressure cap lower body is also equipped with connecting cylinder, and the top of seal pressure cap upper body is equipped with end cap, seal pressure cap lower body it is interior
Screw thread is connect with sealing box body.
2. a kind of Separated well polished rod seal box as described in claim 1, characterized in that the seal pressure cap upper body is equipped with
Centre bore and packing installation cavity, lower part outer wall are equipped with axial bond or axial groove, be packed into packing installation cavity upper platen, packing and on
Backing plate；Seal pressure cap lower body is equipped with centre bore and packing installation cavity, is packed into pressing disc, packing and lower bolster in packing installation cavity,
The top inner circle of seal pressure cap lower body be equipped with axial groove or axial bond, the internal screw thread of the packing installation cavity of seal pressure cap lower body with it is close
The connection of jacket ontology.
3. a kind of Separated well polished rod seal box as claimed in claim 1 or 2, characterized in that the seal pressure cap upper body
Lower part outer wall and seal pressure cap lower body top inner circle by axial groove or axial bond grafting so that seal pressure cap upper body with it is close
It opposite can be moved up and down between envelope pressure cap lower body.
4. a kind of Separated well polished rod seal box as claimed in claim 3, characterized in that the seal pressure cap upper body with it is close
After sealing the grafting of pressure cap lower body, the cavity formed between the top inner circle and pressing disc of seal pressure cap lower body is lubricating cavity, with the profit
The shell wall for sliding the corresponding seal pressure cap lower body of chamber is equipped with lubrication hole, the lubrication hole is connect with grease nipple.
5. a kind of Separated well polished rod seal box as claimed in claim 3, characterized in that the appearance of the connecting cylinder is in drum
Shape is one kind as cord and glue line the interlayer scalable compliant member made of compacting.
6. a kind of Separated well polished rod seal box as claimed in claim 5, characterized in that the seal pressure cap upper body and close
The junction of envelope pressure cap lower body and connecting cylinder is equipped with sealing ring, the outer wall of connecting cylinder at this is equipped with clip or will connection
Cylinder is threadedly coupled with seal pressure cap upper body and seal pressure cap lower body.
7. a kind of Separated well polished rod seal box as described in claim 1, characterized in that on the end cap, seal pressure cap
Body, upper platen, packing, upper padding plate and seal pressure cap lower body, pressing disc and lower bolster the aperture of centre bore be equal to or greatly
In the outer diameter of polished rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897550.1U CN208330255U (en) | 2018-06-11 | 2018-06-11 | A kind of Separated well polished rod seal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897550.1U CN208330255U (en) | 2018-06-11 | 2018-06-11 | A kind of Separated well polished rod seal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330255U true CN208330255U (en) | 2019-01-04 |
Family
ID=64770064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820897550.1U Expired - Fee Related CN208330255U (en) | 2018-06-11 | 2018-06-11 | A kind of Separated well polished rod seal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330255U (en) |
-
2018
- 2018-06-11 CN CN201820897550.1U patent/CN208330255U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20200611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |