CN102966326A - Profiled salvage drill bit - Google Patents
Profiled salvage drill bit Download PDFInfo
- Publication number
- CN102966326A CN102966326A CN2012104610093A CN201210461009A CN102966326A CN 102966326 A CN102966326 A CN 102966326A CN 2012104610093 A CN2012104610093 A CN 2012104610093A CN 201210461009 A CN201210461009 A CN 201210461009A CN 102966326 A CN102966326 A CN 102966326A
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- drill bit
- salvage
- profiled
- drill
- rod
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Abstract
The invention provides a profiled salvage drill bit, which comprises a profiled drill bit tire body, a plurality of diamond composite plate type cutting heads and a plurality of side teeth. The profiled salvage drill bit is technically characterized in that a certain area is cut inwards off one end face of the drill bit tire body to a certain depth to form a stepping edge surface, and the diamond composite plate type cutting heads are uniformly arranged on the surface. The other end of the drill bit is provided with threads and is coupled with a salvage drill rod. The cylindrical surface of the drill bit tire body is uniformly provided with a certain number of side teeth. The profiled salvage drill bit has the advantages that: the time for handling rod breakage, tripping and other special conditions can be reduced effectively. Due to the stepping profiled edge surface, the salvage drill rod can be butted with a broken drill rod or a tripping drill rod more easily. The success rate of salvage in an original hole can be increased, and the rate of waste holes can be decreased. The profiled salvage drill bit is more practical and can be applied in coal or rocks for salvage with the drill rod in the original hole, and tripping of the drill rod, breakage of the drill rod and other special conditions and accidents can be handled during drilling construction. The drill bit can be dragged out of a bore by a drilling rig, and the effect of salvage can be achieved.
Description
Technical field
The present invention relates to a kind of colliery and salvage drill bit, particularly a kind ofly process the abnormal shape that under coal mine rig carries out the special operation conditions such as drilling rod occurs in the drilling process disconnected bar, dropout and salvage drill bit.
Background technology
Salvaging drill bit is ingredient indispensable in the fishing tool, present existing salvaging drill bit is after being delivered to drill rod breaking or dropout place, difficulty is docked drilling rod herein, but drill bit cutting edge end face pushes up, is stuck on the drill rod breaking end face or on the drilling rod end face of threading off, cause the salvaging drilling rod to be difficult to connect with fracture drilling rod and dropout drilling rod, the processing time of special operation condition also will prolong.
Summary of the invention
The objective of the invention is for existing in order to overcome above-mentioned shortcoming and defect in the above-mentioned technology, a kind of special-shaped drill bit of salvaging is provided, adopt stepped cutting edge end face, when the drill rod thread end face of the fracture end face of running into drilling rod or dropout and can't creep into forward and reach when docking, salvage drilling rod by rotation and drive the rotation of salvaging drill bit, to be salvaged drilling rod introduces in the salvaging drill bit, thereby realization salvaging drilling rod docks with fracture drilling rod or dropout drilling rod, make that the processing time of special operation condition shortens greatly in the borer drilling procedure, and reduce useless porosity, it is higher to improve drilling efficiency.To putting forward Safety of Coal Mine Production efficient important meaning is arranged.
The object of the present invention is achieved like this, comprises carcass, deburring tooth, cutter head, is welded to form by fishing joint and drill rod threaded nipple two parts.It is characterized in that, the bit matrix end face inwardly excises, size and the degree of depth are set according to actual needs, end face is stepped end face not at a horizontal plane, forms stepped edge surface, its inner surface is manufactured with the spigot surface of inclination, uniform deburring tooth on the carcass cylinder, its effect are to make the fineness of hole wall better, the boring that becomes porosity to be greater than not use the drill bit with the deburring tooth to get out.Uniform diamond compact cutter head has improved drilling efficiency on the stepped edge surface of carcass.At the other end of carcass, adopt the form that is threaded, internal and external screw thread all can.
The invention has the beneficial effects as follows: effectively reduce the processing time of resolving bar, dropout special operation condition.Owing to adopt stepped special-shaped edge surface, make and salvage drilling rod with the fracture drilling rod or the dropout drilling rod is easier achieves a butt joint.Make that the processing time of special operation condition shortens greatly in the borer drilling procedure, and reduce useless porosity, it is higher to improve drilling efficiency.To putting forward Safety of Coal Mine Production efficient important meaning is arranged.
Description of drawings
Fig. 1 is structure chart of the present invention
The specific embodiment
Below in conjunction with accompanying drawing present embodiment is described further
As shown in Figure 1, the bit matrix end face inwardly excises, and size and the degree of depth are set according to actual needs, form stepped edge surface, uniform deburring tooth 2 on carcass 1 cylinder, the main gauge that plays a part of deburring tooth, make hole wall even, easier when drilling.Its effect is to make the fineness of hole wall better, the boring that becomes porosity to be greater than not use the drill bit with the deburring tooth to get out.Uniform diamond compact cutter head 3 on the stepped edge surface of carcass 1, cutter edge surface are stepped cutting edge not at a horizontal plane.Improved drilling efficiency.At the other end of deformed drill carcass 1, adopt the form that is threaded, internal and external screw thread all can, be connected to and salvage on the drilling rod.Easy to connect, reliable.Can in coal or rock, carry out the foramen primum drilling rod and salvage, process the special operation condition accidents such as the drilling rod that occurs in the drilling construction is threaded off, disconnected bar.This drill bit adopts notch cuttype form of structure, salvages drilling rod by rotation, and effectively the dropout drilling rod in the butt hole or fracture drilling rod are hauled out it in boring by rig afterwards, reach the salvaging effect.
Claims (1)
1. an abnormal shape is salvaged drill bit, comprise carcass, deburring tooth, cutter head, it is characterized in that, the bit matrix end face inwardly excises, size and the degree of depth are set according to actual needs, form stepped edge surface, end face is stepped end face not at a horizontal plane, forms stepped edge surface, its inner surface is manufactured with the spigot surface of inclination, uniform deburring tooth on the carcass cylinder, uniform diamond compact cutter head on the stepped edge surface of carcass is at the other end of carcass, the employing form that is threaded, internal and external screw thread all can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104610093A CN102966326A (en) | 2012-11-16 | 2012-11-16 | Profiled salvage drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104610093A CN102966326A (en) | 2012-11-16 | 2012-11-16 | Profiled salvage drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966326A true CN102966326A (en) | 2013-03-13 |
Family
ID=47796732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104610093A Pending CN102966326A (en) | 2012-11-16 | 2012-11-16 | Profiled salvage drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966326A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999584A (en) * | 2018-09-21 | 2018-12-14 | 中煤科工集团重庆研究院有限公司 | Composite fishing cone for underground coal mine drilling accident treatment |
| CN114086903A (en) * | 2021-12-02 | 2022-02-25 | 中州水务控股有限公司 | Method for solving drill jamming problem in horizontal directional drill construction process |
| CN114776225A (en) * | 2022-02-28 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Anti-slide pile drilling machine equipment and drill bit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432331Y (en) * | 2000-06-21 | 2001-05-30 | 杜晓瑞 | Downhole cleaner |
| CN200978624Y (en) * | 2006-11-29 | 2007-11-21 | 吉林石油集团有限责任公司 | Salvaging type casing drilling surface dedicated drill bit |
| CN201599001U (en) * | 2010-01-12 | 2010-10-06 | 中国石油集团川庆钻探工程有限公司川西钻探公司 | Washover fishing tool with large-range die collar |
| US20110253460A1 (en) * | 2008-12-29 | 2011-10-20 | Ooo Npp "Burintekh" | Blade-type drill bit |
| CN202391372U (en) * | 2011-09-09 | 2012-08-22 | 中国石油化工股份有限公司 | Hollow grind shoes for refloating small underground litters |
| CN203050591U (en) * | 2012-11-16 | 2013-07-10 | 沈阳北方重矿机械有限公司 | Profiled fishing drill bit |
-
2012
- 2012-11-16 CN CN2012104610093A patent/CN102966326A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432331Y (en) * | 2000-06-21 | 2001-05-30 | 杜晓瑞 | Downhole cleaner |
| CN200978624Y (en) * | 2006-11-29 | 2007-11-21 | 吉林石油集团有限责任公司 | Salvaging type casing drilling surface dedicated drill bit |
| US20110253460A1 (en) * | 2008-12-29 | 2011-10-20 | Ooo Npp "Burintekh" | Blade-type drill bit |
| CN201599001U (en) * | 2010-01-12 | 2010-10-06 | 中国石油集团川庆钻探工程有限公司川西钻探公司 | Washover fishing tool with large-range die collar |
| CN202391372U (en) * | 2011-09-09 | 2012-08-22 | 中国石油化工股份有限公司 | Hollow grind shoes for refloating small underground litters |
| CN203050591U (en) * | 2012-11-16 | 2013-07-10 | 沈阳北方重矿机械有限公司 | Profiled fishing drill bit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999584A (en) * | 2018-09-21 | 2018-12-14 | 中煤科工集团重庆研究院有限公司 | Composite fishing cone for underground coal mine drilling accident treatment |
| CN114086903A (en) * | 2021-12-02 | 2022-02-25 | 中州水务控股有限公司 | Method for solving drill jamming problem in horizontal directional drill construction process |
| CN114776225A (en) * | 2022-02-28 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Anti-slide pile drilling machine equipment and drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |