CN201972629U - Threaded structure of drill rod - Google Patents
Threaded structure of drill rod Download PDFInfo
- Publication number
- CN201972629U CN201972629U CN2011200654483U CN201120065448U CN201972629U CN 201972629 U CN201972629 U CN 201972629U CN 2011200654483 U CN2011200654483 U CN 2011200654483U CN 201120065448 U CN201120065448 U CN 201120065448U CN 201972629 U CN201972629 U CN 201972629U
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- drilling
- drill rod
- screw thread
- thread
- threaded structure
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Abstract
The utility model relates to a threaded structure of a drill rod, belonging to the technical field of drilling equipment for geological prospecting. The threaded structure of the drill rod comprises a drill rod body (1) and a screw thread (2), wherein the screw thread is arranged at the end part of the drill rod body. The thread form of the screw thread is in an abnormal asymmetric structure, one side is 3 degrees, one side is 45 degrees, the height of the screw thread is 1.37mm, the length is 54mm, and the thread pitch is 10.16mm. The threaded structure is suitable for drilling of very deep holes with the hole depth of 2500m-3000m in geological drilling, can effectively reduce accidents of drill rod break and the like in the drilling of very deep holes, and has important implications for the drilling of very deep holes. With the asymmetric structure design of the screw thread, the threaded structure reserves the advantages of the traditional screw thread and has the characteristic of release prevention. The connecting strength of the screw thread is greatly increased, and the wrest resistant performance is strengthened. The threaded structure suitable for drilling of very deep holes, the accidents in the drilling of very deep holes are reduced, and the drilling efficiency is beneficially increased.
Description
Technical field:
The utility model relates to a kind of drill rod thread structure, belongs to used for geological prospecting drilling equipment technical field.
Background technology:
At present, the used for geological prospecting drilling rod is made up of drilling rod body, male joint, female joint, and they link together by special trapezoidal thread, form a drilling rod, the height of thread of drill rod thread is generally 0.75-1mm, reach 42-45 millimeter, form of thread adopts symmetrical structure, 8 millimeters of pitch.When geology was crept into, situation was very complicated in the hole, comprehensive above data, and tension, torsional property that background technology is used drilling rod always only are suitable for creeping at middle shallow bore hole, in case drilling depth is excessive, take place very easily that drill rod thread fractures or the dropout accident.
The utility model content:
The technical solution of the utility model is: a kind of drill rod thread structure, comprise drilling rod body, ridge, ridge is arranged on the end of drilling rod body, and the tooth form of ridge is special-shaped dissymmetrical structure, on one side-3 degree, 45 spend on one side, said one side-3 degree, 45 degree on one side are meant the vertical line of the tooth side on thread crest both sides with respect to the pitch diameter of thread, counterclockwise for just, the left side is 45 degree, and the right side is-3 degree.
1.37 millimeters of said height of threads, length are 54 millimeters, 10.16 millimeters of pitch.
The utility model form of thread adopts dissymmetrical structure, spend on one side-3,45 spend on one side, the contact area that had both kept conventional threads is big, the gap is little, antileaking, torsional strength high characteristics have anti-tripping characteristics again, in special deep well drilling, effectively reduced the generation of accident, for special deep well drilling provides good basis.Height of thread adopts 1.37 millimeters, length is 54 millimeters, 10.16 millimeters of pitch, and the bonding strength and the torsional property of screw thread are improved, effectively reduced the accident that fractures of drilling rod in deep well drilling and special deep well drilling, its effect is particularly evident in special deep well drilling.
The beneficial effects of the utility model are: the utlity model has the intensity height that is threaded, high and the anti-tripping characteristics of torsional property, be applicable to the special deep well drilling of 2500 meters-3000 meters hole depths of geological drilling, the generation of accident such as can effectively reduce that drilling rod fractures in special deep well drilling has great significance for special deep well drilling.The abnormally-structured design of form of thread except that the advantage that keeps conventional threads, has anti-tripping characteristics again; The bonding strength of screw thread is strengthened greatly, and torsional property is strengthened, and is suitable for creeping into of special deep hole, and the generation of minimizing accident in the special deep well drilling helps the raising of drilling efficiency.
Description of drawings:
Fig. 1 is the utility model embodiment schematic diagram;
Fig. 2 is a ridge schematic diagram among the utility model embodiment;
Among the figure: drilling rod body 1, ridge 2.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
With reference to accompanying drawing 1,2, a kind of drill rod thread structure comprises drilling rod body 1, ridge 2, and ridge is arranged on the end of drilling rod body, and the tooth form of ridge is special-shaped dissymmetrical structure, on one side-3 degree, 45 degree on one side.Said height of thread is adopted 1.37 millimeters, and length is 54 millimeters, 10.16 millimeters of pitch.
With reference to accompanying drawing 2, said one side-3 degree, 45 degree on one side are meant the vertical line of the tooth side on thread crest both sides with respect to the pitch diameter of thread, and counterclockwise for just, the left side is 45 degree, and the right side is-3 to spend.
Claims (2)
1. drill rod thread structure, be characterised in that and comprise drilling rod body (1), ridge (2), ridge is arranged on the end of drilling rod body, and the tooth form of ridge is special-shaped dissymmetrical structure, on one side-3 degree, 45 spend on one side, said one side-3 degree, 45 degree on one side are meant the vertical line of the tooth side on thread crest both sides with respect to the pitch diameter of thread, counterclockwise for just, the left side is 45 degree, and the right side is-3 degree.
2. the drill rod thread structure according to claim 1 is characterized in that 1.37 millimeters of said height of threads, and length is 54 millimeters, 10.16 millimeters of pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200654483U CN201972629U (en) | 2011-03-14 | 2011-03-14 | Threaded structure of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200654483U CN201972629U (en) | 2011-03-14 | 2011-03-14 | Threaded structure of drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972629U true CN201972629U (en) | 2011-09-14 |
Family
ID=44577736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200654483U Expired - Fee Related CN201972629U (en) | 2011-03-14 | 2011-03-14 | Threaded structure of drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972629U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015914A (en) * | 2012-12-25 | 2013-04-03 | 江苏和信石油机械有限公司 | Exploration drill rod thread structure with 11-1/4-inch ultra-large caliber |
| CN105909185A (en) * | 2016-06-27 | 2016-08-31 | 无锡双马钻探工具有限公司 | Thread structure of drilling rod |
| CN105952390A (en) * | 2016-06-27 | 2016-09-21 | 无锡双马钻探工具有限公司 | Large-torque drill stem thread structure |
-
2011
- 2011-03-14 CN CN2011200654483U patent/CN201972629U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015914A (en) * | 2012-12-25 | 2013-04-03 | 江苏和信石油机械有限公司 | Exploration drill rod thread structure with 11-1/4-inch ultra-large caliber |
| CN105909185A (en) * | 2016-06-27 | 2016-08-31 | 无锡双马钻探工具有限公司 | Thread structure of drilling rod |
| CN105952390A (en) * | 2016-06-27 | 2016-09-21 | 无锡双马钻探工具有限公司 | Large-torque drill stem thread structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140314 |