CN208252050U - A kind of large torque telescoping tube - Google Patents
A kind of large torque telescoping tube Download PDFInfo
- Publication number
- CN208252050U CN208252050U CN201820771584.6U CN201820771584U CN208252050U CN 208252050 U CN208252050 U CN 208252050U CN 201820771584 U CN201820771584 U CN 201820771584U CN 208252050 U CN208252050 U CN 208252050U
- Authority
- CN
- China
- Prior art keywords
- cylinder sleeve
- mandrel
- large torque
- telescoping tube
- retaining ring
- 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.)
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Links
- 210000002445 nipple Anatomy 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007790 scraping Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model discloses a kind of large torque telescoping tubes, the mandrel to slidably reciprocate including cylinder sleeve and in cylinder sleeve, cylinder sleeve one end is fixedly connected with top connection, the other end is connected with the retaining ring for preventing mandrel from skidding off, mandrel one end is inserted in cylinder sleeve, the other end is connected with lower contact, and being equipped on retaining ring makes mandrel be fixed on the shear pin in pin retaining ring.The anti-torsion screw of No.1 for preventing cylinder sleeve and top connection from twisting is equipped on cylinder sleeve；No. two anti-torsion screws for preventing lower contact and mandrel from twisting are equipped in lower contact；No. three anti-torsion screws for preventing cylinder sleeve and retaining ring from twisting are equipped on cylinder sleeve.The utility model has the beneficial effects that the utility model structure is simple, torque is big, also has the function of scraping dirt clearly between mandrel and cylinder sleeve, prolong the service life.
Description
Technical field
The utility model belongs to telescopic telescoping tube in a kind of telescopic device more particularly to oil exploitation.
Background technique
Telescoping tube (pipe nipple) is a kind of tool for protection pipe string during oil exploration & development, it is concatenated by screw thread
In pipe string, high temperature and pressure can be born, torque can be transmitted, can be elongated or shortened, with compensate pipe string because temperature or (and) pressure become
Stress deformation caused by changing leads to elongating or shortening for pipe string, thus protection pipe string, traditional flexible pipe structure is complicated, due to
The unreasonable receiving torque of structure design is smaller.
Utility model content
The purpose of this utility model is to bear one kind that torque is small, structure is complicated and provides for existing telescoping tube to turn round greatly
Square telescoping tube.
To achieve the goals above, technical solution adopted in the utility model is:
A kind of large torque telescoping tube, the mandrel to slidably reciprocate including cylinder sleeve and in cylinder sleeve, cylinder sleeve one end are fixedly connected with
Top connection, the other end are connected with the retaining ring for preventing mandrel from skidding off, and mandrel one end is inserted in cylinder sleeve, and the other end, which is connected with down, to be connect
Head, being equipped on retaining ring makes mandrel be fixed on the shear pin in pin retaining ring.
Mandrel is machined with external screw thread outside both ends.
Cylinder sleeve both ends inner wall is machined with internal screw thread.
Mandrel is outer polygonized structure, and corresponding retaining ring inner hole is inner polygon structure.
No. two seal assemblies and No. three seal assemblies are equipped between mandrel and cylinder sleeve.
One end that top connection is connect with cylinder sleeve extends in cylinder sleeve, and is connected with No.1 seal nipple in the end.
One end that mandrel is located at top connection is connected with No. two seal nipples.
Pass through the sealing cooperation of No.1 seal assembly between top connection and cylinder sleeve；Pass through No. four sealings between mandrel and lower contact
Component sealing cooperation.
The anti-torsion screw of No.1 for preventing cylinder sleeve and top connection from twisting is equipped on cylinder sleeve；It is equipped under preventing and connects in lower contact
No. two anti-torsion screws of head and mandrel twisting；No. three anti-torsion screws for preventing cylinder sleeve and retaining ring from twisting are equipped on cylinder sleeve.
The utility model has the beneficial effects that the utility model structure is simple, torque is big, also has between mandrel and cylinder sleeve clear
The function of scraping dirt, prolongs the service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1.
Specific embodiment
The utility model is described further below with reference to embodiment.
A kind of large torque telescoping tube of protection pipe string during oil exploration & development as depicted in figs. 1 and 2, including cylinder sleeve
3 and the mandrel 10 that slidably reciprocates in cylinder sleeve 3,3 one end of cylinder sleeve be fixedly connected with top connection 1, the other end, which is connected with, prevents mandrel
The retaining ring 13 skidded off, 10 one end of mandrel are inserted in cylinder sleeve 3, and the other end is connected with lower contact 16, and being equipped on retaining ring 13 makes core
Axis 10 is fixed on the shear pin 12 in pin retaining ring 13.One end that top connection 1 is connect with cylinder sleeve 3 extends in cylinder sleeve, and
The end is connected with No.1 seal nipple 6.One end that mandrel 10 is located at top connection 1 is connected with No. two seal nipples 7.No.1 sealing
Between connector and top connection and No. two fixed by holding screw 5 between seal nipple and mandrel.
Top connection 1 is connected through a screw thread with cylinder sleeve 3, and metal conical surface squeezes to form metal sealing.Seal nipple 6 fixes No.1
Seal assembly 4, which makes to be threadedly coupled, to be sealed；The anti-torsion screw 2 of No.1 designed using high-strength material and end tapered keeps spiral shell
Line pretightning force can simultaneously bear reversion large torque.
Mandrel 10 can slidably reciprocate in cylinder sleeve 3, and No. two seal assemblies 8 and No. three seal assemblies 9 are kept in sliding process
Gap is sealed, and No. three seal assemblies 9 are the dirts scraped clearly on 3 inner hole of cylinder sleeve there are one critical function, is kept in cylinder sleeve 3
Hole cleaning, protects No. two seal assemblies 8 to prolong the service life.
Pin retaining ring 13 is connected through a screw thread with cylinder sleeve 3, No. three anti-torsions designed using high-strength material and end tapered
Screw 11 keeps threaded pre-tightening power and can bear reversion large torque.
Mandrel 10 slides in pin retaining ring 13, and mandrel 10 and pin retaining ring 13 use hexagon cooperation to transmit positive and negative rotation
Large torque, shear pin 12 are fixed on mandrel 10 in pin retaining ring 13, keep initial fixed, when pipe string answers stress variation to make core
Shear pin 12 is cut when the power that axis 10 generates sliding is greater than the force value of shear pin 12, and mandrel 10 can be free to slide, cuts
Shear value can adjust by adjusting 12 quantity of shear pin.
Lower contact 16 is connected through a screw thread with mandrel 10, and 10 end of mandrel and 16 inner hole of lower contact are cooperated by metal interference
Metal sealing is formed, metal sealing and No. four seal assemblies 15 are sealed thread pitch, set using high-strength material and end tapered
The anti-torsion screw 14 of No. two of meter keeps threaded pre-tightening power and can bear reversion large torque.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, it is on the premise of not departing from the spirit and scope of the utility model, in the art common
Simply changing and replacing for technical staff be all within the protection scope of the utility model.
Claims (9)
1. a kind of large torque telescoping tube, it is characterised in that: the mandrel to slidably reciprocate including cylinder sleeve and in cylinder sleeve, cylinder sleeve one end are solid
Surely it is connected with top connection, the other end is connected with the retaining ring for preventing mandrel from skidding off, and mandrel one end is inserted in cylinder sleeve, other end connection
There is lower contact, being equipped on retaining ring makes mandrel be fixed on the shear pin in pin retaining ring.
2. a kind of large torque telescoping tube according to claim 1, it is characterised in that: be machined with outer spiral shell outside mandrel both ends
Line.
3. a kind of large torque telescoping tube according to claim 1, it is characterised in that: cylinder sleeve both ends inner wall is machined with interior spiral shell
Line.
4. a kind of large torque telescoping tube according to claim 1, it is characterised in that: mandrel is outer polygonized structure, corresponding
Retaining ring inner hole be inner polygon structure.
5. a kind of large torque telescoping tube according to claim 1, it is characterised in that: be equipped with No. two between mandrel and cylinder sleeve
Seal assembly and No. three seal assemblies.
6. a kind of large torque telescoping tube according to claim 1, it is characterised in that: prolong one end that top connection is connect with cylinder sleeve
It extends in cylinder sleeve, and is connected with No.1 seal nipple in the end.
7. a kind of large torque telescoping tube according to claim 1, it is characterised in that: mandrel is located at one end connection of top connection
There are No. two seal nipples.
8. a kind of large torque telescoping tube according to claim 1, it is characterised in that: pass through No.1 between top connection and cylinder sleeve
Seal assembly sealing cooperation；Pass through No. four seal assembly sealing cooperations between mandrel and lower contact.
9. a kind of large torque telescoping tube according to claim 1, it is characterised in that: on cylinder sleeve be equipped with prevent cylinder sleeve with it is upper
The anti-torsion screw of No.1 of connector twisting；No. two anti-torsion screws for preventing lower contact and mandrel from twisting are equipped in lower contact；In cylinder
Put on No. three anti-torsion screws for being equipped with and preventing cylinder sleeve and retaining ring from twisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820771584.6U CN208252050U (en) | 2018-05-23 | 2018-05-23 | A kind of large torque telescoping tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820771584.6U CN208252050U (en) | 2018-05-23 | 2018-05-23 | A kind of large torque telescoping tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252050U true CN208252050U (en) | 2018-12-18 |
Family
ID=66481873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820771584.6U Active CN208252050U (en) | 2018-05-23 | 2018-05-23 | A kind of large torque telescoping tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252050U (en) |
-
2018
- 2018-05-23 CN CN201820771584.6U patent/CN208252050U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240320 Address after: 434000, No. 35 Jingzhou Middle Road, Jingzhou District, Jingzhou City, Hubei Province Patentee after: Chen Fang Country or region after: China Address before: 434000, No.1 Longshan Temple, Jingzhou District, Jingzhou City, Hubei Province Patentee before: Zhang Minghua Country or region before: China |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240407 Address after: 434000, Workshop 2, Jiuyang Industrial Park (Hubei Kangsheng Medical Equipment Co., Ltd.), Qujiang Road, Jingzhou District, Jingzhou City, Hubei Province (self declared) Patentee after: Jingzhou Jutong Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: 434000, No. 35 Jingzhou Middle Road, Jingzhou District, Jingzhou City, Hubei Province Patentee before: Chen Fang Country or region before: China |