CN207092980U - Bolt locked centralizer locating snap ring - Google Patents
Bolt locked centralizer locating snap ring Download PDFInfo
- Publication number
- CN207092980U CN207092980U CN201720935855.2U CN201720935855U CN207092980U CN 207092980 U CN207092980 U CN 207092980U CN 201720935855 U CN201720935855 U CN 201720935855U CN 207092980 U CN207092980 U CN 207092980U
- Authority
- CN
- China
- Prior art keywords
- snap ring
- locating snap
- hinge
- bolt
- leaf
- 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
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of bolt locked centralizer locating snap ring, two semicircular locating snap ring leaf of hinge, bearing pin, bolt, pretightning force gear pieces including being enclosed on sleeve outer wall, the multiple prestressing force gear pieces for being used for increasing locating snap ring chucking power for rushing at inboard of even cloth on the inside of two locating snap ring leaf of hinge, two locating snap ring leaf of hinge one end by hinge together, the other end is respectively formed with connecting hole, two connecting holes are fixed by screw bolt and nut, two semicircular locating snap ring leaf of hinge is synthesized an annulus and is fixed on sleeve outer wall.The utility model bolt locked locating snap ring, simple to operate, stable connection, cost are cheap.Realize one step success when casing stabbing board installs additional and stable connection chucking power is big, reduce the casing job time.
Description
Technical field
A kind of centralizer is the utility model is related to, especially a kind of bolt locked centralizer locating snap ring, applied to trapping
During pipe operation, the fixation of the riding position of centralizer.
Background technology
The centralizer of all size is one of instrument the most frequently used in current cementing operation, and its main function is to ensure sleeve pipe
It is placed in the middle in pit shaft, to improve cementing quality.Centralizer is used between being usually directly sleeved on two box cuplings of sleeve pipe at present, and it is lacked
Fall into and be：During casing job, typically at 9 meters or so, centralizer can alter the distance between two box cuplings up and down in this section
Dynamic, centralizer can just make sleeve pipe reach best centering effect when sleeve pipe is hit exactly, and existing locating snap ring chucking power is smaller, is helping
Positive device by wall friction power it is larger when can still cause displacement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of bolt locked centralizer locating snap ring, chucking power
Greatly, it is easy for installation.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of bolt locked centralizer
Locating snap ring, including two semicircular locating snap ring leaf of hinge, bearing pin, bolt, pretightning force gear pieces being enclosed on sleeve outer wall, two
The multiple prestressing force gear pieces for being used for increasing locating snap ring chucking power for rushing at inboard of even cloth, two locating snap rings on the inside of locating snap ring leaf of hinge
By hinge together, the other end is respectively formed with connecting hole for leaf of hinge one end, and two companies are fixed by screw bolt and nut
Hole is connect, two semicircular locating snap ring leaf of hinge is synthesized an annulus and is fixed on sleeve outer wall.
Described two locating snap ring leaf of hinge are steel loop.
Even 18-20 prestressing force gear piece of cloth on the inside of the locating snap ring leaf of hinge, for increasing the chucking power of locating snap ring.
The nut is two, is built in respectively in the connecting hole on two locating snap ring leaf of hinge.
The beneficial effects of the utility model are：Bolt locked locating snap ring, simple to operate, stable connection, cost are cheap.It is real
Show one step success when casing stabbing board installs additional and stable connection chucking power is big, reduce the casing job time.
Brief description of the drawings
Fig. 1 is bolt locked locating snap ring structural representation of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, bolt locked centralizer locating snap ring of the present utility model, including two be enclosed on sleeve outer wall
Semicircular locating snap ring leaf of hinge 1, bearing pin 2, bolt 3, pretightning force gear piece 4, two even multiple punchings of cloth in the inner side of locating snap ring leaf of hinge 1
It is be hinged by bearing pin 2 to the prestressing force gear piece 4 for being used for increasing locating snap ring chucking power of inboard, two one end of locating snap ring leaf of hinge 1
Together, the other end is respectively formed with connecting hole, and two connecting holes are fixed by bolt 3 and nut, make two it is semicircular only
Rotating ring leaf of hinge 1 synthesizes an annulus and is fixed on sleeve outer wall.
Described two locating snap ring leaf of hinge 1 are steel loop.
Even 18-20 prestressing force gear piece 4 of cloth in the inner side of locating snap ring leaf of hinge 1, for increasing the chucking power of locating snap ring.
It is preferred that the nut is two, it is built in respectively in the connecting hole on two locating snap ring leaf of hinge.
Specifically, curved 90 ° are outwards removed in the end of left end leaf of hinge, 16mm hole is bored, is welded with M14 nuts；Right-hand member closes
Curved 90 ° of brills 16mm hole is equally removed in the end of hinge, with six square bolts in M14；All with inside on the body of two leaf of hinge
The shell fragment of projection, bolts and nuts need to only be screwed with allen wrench for increasing the pretightning force of locating snap ring, during use.
The one end of stop collar bolt 3 is opened in actual use, locating snap ring is enclosed on sleeve pipe by bolt 3 and nut
Locking is realized in connection, and each centralizer matches somebody with somebody two locating snap rings, can reach the purpose for preventing play above and below centralizer, improves sleeve pipe
Centralizer, installation are stable.
The utility model solves the problems, such as existing centralizer play on sleeve pipe, ensures centralizer position, improves sleeve pipe and occupies
Moderate, and chucking power is big, it is easy for installation.Compared with existing locating snap ring, it has larger and stable blessing power, installation
It is convenient succinct, it is safe to use.The success of one step and stable connection when spring-backed quill centralizer installs additional are realized, reduces setting of casing work
The time of industry.
In summary, content of the present utility model is not limited in the above embodiments, in same area it is insighted it
Scholar can easily propose other embodiments within technological guidance's thought of the present utility model, but this embodiment is all wrapped
Include within the scope of the utility model.
Claims (4)
1. a kind of bolt locked centralizer locating snap ring, it is characterised in that two including being enclosed on sleeve outer wall semicircular
Locating snap ring leaf of hinge (1), bearing pin (2), bolt (3), pretightning force gear piece (4), two even cloth in locating snap ring leaf of hinge (1) inner side are multiple
The prestressing force gear piece (4) for being used for increasing locating snap ring chucking power of inboard is rushed at, two locating snap ring leaf of hinge (1) one end pass through bearing pin
(2) hinged, the other end is respectively formed with connecting hole, fixes two connecting holes by bolt (3) and nut, makes two and half
Circular locating snap ring leaf of hinge (1) synthesizes an annulus and is fixed on sleeve outer wall.
2. bolt locked centralizer locating snap ring according to claim 1, it is characterised in that described two locating snap ring leaf of hinge
(1) it is steel loop.
3. bolt locked centralizer locating snap ring according to claim 1, it is characterised in that the locating snap ring leaf of hinge (1)
18-20 prestressing force gear piece (4) of the even cloth in inner side, for increasing the chucking power of locating snap ring.
4. bolt locked centralizer locating snap ring according to claim 1, it is characterised in that the nut is two, respectively
It is built in the connecting hole on two locating snap ring leaf of hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720935855.2U CN207092980U (en) | 2017-07-28 | 2017-07-28 | Bolt locked centralizer locating snap ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720935855.2U CN207092980U (en) | 2017-07-28 | 2017-07-28 | Bolt locked centralizer locating snap ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207092980U true CN207092980U (en) | 2018-03-13 |
Family
ID=61543217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720935855.2U Expired - Fee Related CN207092980U (en) | 2017-07-28 | 2017-07-28 | Bolt locked centralizer locating snap ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207092980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
-
2017
- 2017-07-28 CN CN201720935855.2U patent/CN207092980U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
| CN111963078B (en) * | 2020-10-23 | 2020-12-15 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210706 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin, 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |