CN202090854U - Outer thickened non-excavating drill pipe with size larger than five inches - Google Patents
Outer thickened non-excavating drill pipe with size larger than five inches Download PDFInfo
- Publication number
- CN202090854U CN202090854U CN2011202165299U CN201120216529U CN202090854U CN 202090854 U CN202090854 U CN 202090854U CN 2011202165299 U CN2011202165299 U CN 2011202165299U CN 201120216529 U CN201120216529 U CN 201120216529U CN 202090854 U CN202090854 U CN 202090854U
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- China
- Prior art keywords
- thickened
- pipe
- drill pipe
- thread connector
- excavating
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- Expired - Fee Related
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Abstract
An outer thickened non-excavating drill pipe with size larger than five inches comprises a thickened pipe body. An upper thickened end and a lower thickened end are respectively arranged on two ends of the thickened pipe body, the upper thickened end of the thickened pipe body is welded with an inner thread connector through friction welding, the lower thickened end of the thickened pipe body is welded with an outer thread connector through friction welding, and a ledge angle of the inner thread connector and a ledge angle of the outer thread connector are both 18 degrees. Compared with the prior art, the outer thickened non-excavating drill pipe has the advantages of having smaller rod boring and chambering resistance, being higher in construction efficiency, low in producing cost and capable of effectively avoiding the problem that the drill pipe is locked with a hole wall during pipeline crossing procedure, lowering processing difficulty of pipe end thickening due to the outer thickening mode of the pipe end, reducing fatigue failure caused by stress concentration of a transitional zone in the thickened end during using process of the drill pipe, and is beneficial for wide application in non-excavating penetration field.
Description
Technical field
The utility model relates to a kind of non-excavation orientation and passes through the drilling rod of use, is a kind of excavation drilling rod of being altogether unjustifiable that adds more than five inches concretely.
Background technology
At present, in the directed crossing construction process of non-excavation, drilling rod is being born the mechanical load of creeping into moment of torsion and pulling back and applied in the work progresss such as pilot hole creeps into, reaming, trombone slide as main drilling tool.The internal-external thickening that conventional drilling rod more than five inches adopts, mainly based on interior thickening, body upset end external diameter and body external diameter differ very little, and it is bigger with the tool joint external diameter, body and joint diameter difference are excessively steeper, and in the rod boring process, drill pipe thickening end outer wall is assembled a large amount of silt easily, strengthened the resistance that creeps into, when resistance acquires a certain degree, cause drilling rod and hole wall locking easily, final drilling rod can't take out, the engineering failure brings great economic loss to the user.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, provides a kind of simple in structure, and the drilling rod guiding is crept into the little drilling rod of resistance.
Its technical scheme is: comprise the thickening body, thickening body two ends are respectively equipped with upset end and following upset end, the last upset end of thickening body is by friction welding and female adapter welding, the following upset end of thickening body is by friction welding and male connection welding, and the shoulder angle of the shoulder of female adapter and male connection is 18 °.
The utility model compared with prior art, has rod boring and the reaming resistance is little, the efficiency of construction height, effectively avoided advantage such as drilling rod and hole wall locking in the pipeline crossing process, and cost of production is low, and pipe end adopts the external upset (EU) form, has reduced the end upsetting difficulty of processing, reduced drilling rod and in use caused fatigue failure, be convenient to pass through the field extensive use at non-excavation because intermediate zone stress is concentrated in the upset end.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
As shown in the figure, a kind of excavation drilling rod of being altogether unjustifiable that adds more than five inches, comprise thickening body 1, thickening body 1 two ends are respectively equipped with upset end 2 and following upset end 3, end upsetting all adopts the external upset (EU) pattern, the last upset end 2 of thickening body 1 is by friction welding and female adapter 6 welding, and the following upset end 3 of thickening body 1 is by friction welding and male connection 7 welding, and shoulder 5 angles of the shoulder 4 of female adapter 6 and male connection 7 are 18 °.
External diameter and screw thread button-type gram are selected conventional API button-type or other high antitorque button-types for use in female adapter 6 and the male connection 7, and last upset end 2 and following upset end 3 internal diameters and outside dimension can specifically be selected under the situation that guarantees enough bonding areas and weld strength.In the process that the drilling rod pilot hole creeps into, the diameter difference of female adapter 6 and male connection 7 external diameters and last upset end 2 and following upset end 3 reduces greatly, the diameter difference is excessively mild, effectively prevented drill pipe thickening end outer wall gathering silt, reduced and crept into resistance, reduced the phenomenon of drilling rod and hole wall locking.
Claims (1)
1. one kind adds the excavation drilling rod of being altogether unjustifiable more than five inches, comprise the thickening body, it is characterized in that: thickening body two ends are respectively equipped with upset end and following upset end, the last upset end of thickening body is by friction welding and female adapter welding, the following upset end of thickening body is by friction welding and male connection welding, and the shoulder angle of the shoulder of female adapter and male connection is 18 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202165299U CN202090854U (en) | 2011-06-16 | 2011-06-16 | Outer thickened non-excavating drill pipe with size larger than five inches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202165299U CN202090854U (en) | 2011-06-16 | 2011-06-16 | Outer thickened non-excavating drill pipe with size larger than five inches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090854U true CN202090854U (en) | 2011-12-28 |
Family
ID=45365927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202165299U Expired - Fee Related CN202090854U (en) | 2011-06-16 | 2011-06-16 | Outer thickened non-excavating drill pipe with size larger than five inches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127922A (en) * | 2023-10-13 | 2023-11-28 | 澳普洛钻探工具(无锡)有限公司 | V-WALL material drilling rod |
-
2011
- 2011-06-16 CN CN2011202165299U patent/CN202090854U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127922A (en) * | 2023-10-13 | 2023-11-28 | 澳普洛钻探工具(无锡)有限公司 | V-WALL material drilling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20140616 |
|
| EXPY | Termination of patent right or utility model |