CN207245633U - A kind of tool joint - Google Patents
A kind of tool joint Download PDFInfo
- Publication number
- CN207245633U CN207245633U CN201621494522.2U CN201621494522U CN207245633U CN 207245633 U CN207245633 U CN 207245633U CN 201621494522 U CN201621494522 U CN 201621494522U CN 207245633 U CN207245633 U CN 207245633U
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- CN
- China
- Prior art keywords
- pin end
- female connector
- tool joint
- utility
- thread
- 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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Abstract
Field drilling, geological prospecting and drilling operation drilling tool are the utility model is related to, is specifically a kind of tool joint, belongs to field of petroleum machinery.A kind of tool joint includes：With externally threaded pin end and tapped female connector, the pin end is connected with female connector by thread fitting, it is characterised in that the screw thread of the pin end and the screw thread of female connector carry 20 degree of inclinations angle.A kind of tool joint provided by the utility model, strengthens threaded connection, has the advantages that convenient disassembly, intensity is high, wear-resisting, and service life is long.
Description
Technical field
Field drilling, geological prospecting and drilling operation drilling tool are the utility model is related to, is specifically a kind of tool joint, belongs to
Field of petroleum machinery.
Background technology
Tool joint is to realize the important component of oil drill rocker connection, its operating condition is very severe, and stressing conditions are very
It is complicated.During normal rotary drilling, connector will by a variety of dead loads such as pretension, stretching, torsion, bending and external and internal pressure and
Dynamic loading, and to be subject to the corrosiveness of drilling mud and stratum media.
Existing tool joint by pin end and female connector threaded connection, it is opposite by internal threaded end sealing surface and external screw thread
The step surface answered, which is combined closely, reaches sealing.The thread root stress of the tool joint of this structure is seriously concentrated, and is easily caused
Screw thread is broken, and is caused joint fails, is deformed, premature failure, meanwhile, leakproofness is also poor, can only adapt under smaller range pressure
Pressure, poor practicability.
Utility model content
For the drawbacks described above of the prior art, a kind of tool joint provided by the utility model, has convenient disassembly, intensity
Height, wear-resisting, the advantages that service life is long.
In order to achieve the above object, the utility model provides following technical solution：
A kind of tool joint includes：With externally threaded pin end and tapped female connector, the pin end and mother connect
Head is connected by thread fitting, and the screw thread of the pin end and the screw thread of female connector carry angle of inclination.
Wherein, the included angle of thread degree of the screw thread of the pin end and female connector is 20 degree.
Wherein, the thread head of the pin end is equipped with sealing surface I.
Wherein, the thread head of the female connector is equipped with sealing surface II.
Wherein, pin end and the female connector surface uses hyperfine rare metal electroplating processes.
The beneficial effects of the utility model are：A kind of tool joint provided by the utility model, strengthens threaded connection, tool
There is the advantages that convenient disassembly, intensity is high, wear-resisting, and service life is long.The torsional strength of tool joint is strengthened, reduces drilling rod connecting
The stress concentration of head junction.
In order to be further understood that the feature of the utility model and technology contents, refer to new below in connection with this practicality
The detailed description of type and attached drawing, but attached drawing is only provided and used with reference to explanation, is not used for being any limitation as the utility model.
Brief description of the drawings
Below in conjunction with the accompanying drawings, by the way that specific embodiment of the present utility model is described in detail, the utility model will be made
Technical solution and other beneficial effects are apparent.
Fig. 1 is a kind of structure diagram of tool joint of the utility model.
Embodiment
The technological means and its effect taken for further elaboration the utility model, below in conjunction with the utility model
Preferred embodiment and its attached drawing are described in detail.
Referring to Fig. 1, a kind of tool joint includes：It is described with externally threaded pin end 1 and tapped female connector 2
Pin end 1 and female connector 2 are connected by screw thread 3, and the screw thread of the pin end 1 and the screw thread of female connector 2 carry inclination angle
Degree.
Further, the included angle of thread degree of the screw thread of the pin end 1 and female connector 2 is 20 degree, strengthens tool joint
Torsional strength, reduce the stress concentration of tool joint junction.
Further, the thread head of the pin end 1 is equipped with sealing surface I4, while strengthens threaded connection, and leakproofness is big
It is big to improve.
Further, the thread head of the female connector 2 is equipped with sealing surface II5, while strengthens threaded connection, and leakproofness is big
It is big to improve.
Further, 2 surface of pin end 1 and female connector uses hyperfine rare metal electroplating processes, effectively improves resistance to
Mill property.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be described with power
Subject to the protection domain that profit requires.
Claims (1)
1. a kind of tool joint includes：With externally threaded pin end and tapped female connector, the pin end and female connector
Connected by thread fitting, it is characterised in that the screw thread of the pin end and the screw thread of female connector carry angle of inclination, the public affairs
The screw thread of connector and the included angle of thread degree of female connector are 20 degree, and the thread head of the pin end is equipped with sealing surface I, the mother
The thread head of connector is equipped with sealing surface II, and pin end and the female connector surface uses rare metal electroplating processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494522.2U CN207245633U (en) | 2016-12-30 | 2016-12-30 | A kind of tool joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494522.2U CN207245633U (en) | 2016-12-30 | 2016-12-30 | A kind of tool joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245633U true CN207245633U (en) | 2018-04-17 |
Family
ID=61874780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621494522.2U Active CN207245633U (en) | 2016-12-30 | 2016-12-30 | A kind of tool joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207245633U (en) |
-
2016
- 2016-12-30 CN CN201621494522.2U patent/CN207245633U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |