CN204402373U - Easy jointed rod - Google Patents
Easy jointed rod Download PDFInfo
- Publication number
- CN204402373U CN204402373U CN201420742627.XU CN201420742627U CN204402373U CN 204402373 U CN204402373 U CN 204402373U CN 201420742627 U CN201420742627 U CN 201420742627U CN 204402373 U CN204402373 U CN 204402373U
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- CN
- China
- Prior art keywords
- drilling rod
- screw thread
- male connection
- female adapter
- utility
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- 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
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Abstract
The utility model discloses a kind of easily jointed rod, comprise drilling rod body, its one end is provided with male connection, the other end is provided with female adapter, and male connection and female adapter match, it is characterized in that: the screw thread of described male connection and female adapter is all through the screw thread of high-frequency quenching, and the external screw thread afterbody of male connection is provided with cannelure.The utility model structure is simple, reasonable in design, is threaded connection between drilling rod, is convenient to entirety and part handling, is conducive to maintenance and the replacing of drilling rod.The external screw thread afterbody of male connection is provided with cannelure, avoids tapered tread because the torsion that mismachining tolerance occurs concentrates on the phenomenon of tailing screw flight, improves the robustness of screw thread.
Description
Technical field
The utility model belongs to drilling tool technical field, particularly relates to a kind of drilling rod.
Background technology
Drilling rod transmits power to drill bit, and enters the shaft-like of boring or tubular member with drill bit.The boring of usual coal mining enterprise is dark; required drilling machine power is large; and drilling rod many employings thin-wall seamless pipe; two ends add first steel welding fabrication; usually can bend, rupture, leak, the phenomenon such as gas leakage; cause drilling rod to come off, salvage drilling tool, maintenance or change drilling rod etc., had a strong impact on production efficiency, therefore coal production enterprise need more durable, be convenient to the drilling rod that keeps in repair or change.
Along with the development of science and technology, the drilling rod that present most coal mining enterprise adopts comprises pin thread drilling rod, middle brace rod, box drilling rod, and wherein pin thread drilling rod connects middle brace rod by electric welding, and middle brace rod connects box drilling rod by electric welding again.Obviously there is many deficiencies in this drilling rod, if drilling rod is by being welded, is not easy to maintenance or changes drilling rod; Weld not environmentally, and weld easily ruptures simultaneously, have impact on the application life of drilling rod, add the maintenance times of drilling rod, reduce the production efficiency of coal mining enterprise.
Therefore, the direction becoming these those skilled in the art and make great efforts how is solved the problems of the technologies described above.
Utility model content
The purpose of this utility model is just to provide a kind of easily jointed rod, can solve above-mentioned the deficiencies in the prior art part completely.
The purpose of this utility model is realized by following technical proposals:
A kind of easily jointed rod, comprise drilling rod body, its one end is provided with male connection, the other end is provided with female adapter, and male connection and female adapter match, it is characterized in that: the screw thread of described male connection and female adapter is all through the screw thread of high-frequency quenching, and the external screw thread afterbody of male connection is provided with cannelure.
As preferably, the screw thread of described male connection and female adapter is tapered tread.
As preferably, the external surface of described female adapter is positive six prisms.
Compared with prior art, the beneficial effects of the utility model are:
1. structure simple, reasonable in design, be convenient to batch production; Drilling rod connects does not need welding, not only environmental protection, and connecting portion is compared welding and more difficultly to be ruptured, and drastically increases the application life of drilling rod; Drilling rod integral hardness is high, wear-resisting, water-tight, air tight, avoids drilling rod and in drilling process, is subject to external force bends, rupture, further increase the application life of drilling rod; Be threaded connection between drilling rod in addition, be convenient to entirety and part handling, be conducive to maintenance and the replacing of drilling rod, be proven, just need to change about welding drilling rod uses hundreds of rice, welding drilling rod drilling depth of the present utility model reaches 8000 meters and there will not be bending, phenomenon of rupture.
2. the external screw thread afterbody of male connection is provided with cannelure, avoids tapered tread because the torsion that mismachining tolerance occurs concentrates on the phenomenon of tailing screw flight, improves the robustness of screw thread.
3. the external surface of female adapter described in is positive six prisms, and instrument easy to use blocks female adapter and is connected with the male connection of another drilling rod.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is left view of the present utility model.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
As shown in Figure 1 to Figure 3, a kind of easily jointed rod, comprise drilling rod body 1, its one end is provided with male connection 2, the other end is provided with female adapter 3, and male connection 2 and female adapter 3 match, and the screw thread of described male connection 2 and female adapter 3 is tapered tread, and their screw thread is all through the screw thread of high-frequency quenching, and the external screw thread afterbody of male connection 2 is provided with three road cannelures 4.
The external surface of described female adapter 3 is positive six prisms.
Drilling rod of the present utility model connects does not need welding, not only environmental protection, and connecting portion compares that welding is more difficult ruptures, and drastically increases the application life of drilling rod; Drilling rod integral hardness is high, wear-resisting, water-tight, air tight, avoids drilling rod and in drilling process, is subject to external force bends, rupture, further increase the application life of drilling rod; Be threaded connection between drilling rod in addition, be convenient to entirety and part handling, be conducive to maintenance and the replacing of drilling rod, be proven, just need to change about welding drilling rod uses hundreds of rice, welding drilling rod drilling depth of the present utility model reaches 8000 meters and there will not be bending, phenomenon of rupture.
The external screw thread afterbody of male connection 2 is provided with cannelure 4, avoids tapered tread because the torsion that mismachining tolerance occurs concentrates on the phenomenon of tailing screw flight, improves the robustness of screw thread.The external surface of described female adapter 3 is positive six prisms, and instrument easy to use blocks female adapter 3 and is connected with the male connection of another drilling rod.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. an easy jointed rod, comprise drilling rod body, its one end is provided with male connection, the other end is provided with female adapter, and male connection and female adapter match, it is characterized in that: the screw thread of described male connection and female adapter is all through the screw thread of high-frequency quenching, and the external screw thread afterbody of male connection is provided with cannelure.
2. easy jointed rod according to claim 1, is characterized in that: the screw thread of described male connection and female adapter is tapered tread.
3. easy jointed rod according to claim 1, is characterized in that: the external surface of described female adapter is positive six prisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742627.XU CN204402373U (en) | 2014-12-03 | 2014-12-03 | Easy jointed rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742627.XU CN204402373U (en) | 2014-12-03 | 2014-12-03 | Easy jointed rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402373U true CN204402373U (en) | 2015-06-17 |
Family
ID=53426246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742627.XU Expired - Fee Related CN204402373U (en) | 2014-12-03 | 2014-12-03 | Easy jointed rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485069A (en) * | 2020-05-27 | 2020-08-04 | 中地装(无锡)钻探工具有限公司 | Drill rod and treatment process for threaded surface of connecting part of drill rod |
-
2014
- 2014-12-03 CN CN201420742627.XU patent/CN204402373U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485069A (en) * | 2020-05-27 | 2020-08-04 | 中地装(无锡)钻探工具有限公司 | Drill rod and treatment process for threaded surface of connecting part of drill 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: 20150617 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |