CN105569573A - PDC drill bit applicable to core drilling of moon - Google Patents
PDC drill bit applicable to core drilling of moon Download PDFInfo
- Publication number
- CN105569573A CN105569573A CN201510937330.8A CN201510937330A CN105569573A CN 105569573 A CN105569573 A CN 105569573A CN 201510937330 A CN201510937330 A CN 201510937330A CN 105569573 A CN105569573 A CN 105569573A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- pdc
- moon
- spiral
- core drilling
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/02—Core bits
- E21B10/04—Core bits with core destroying means
Abstract
The invention discloses a PDC drill bit applicable to core drilling of the moon and belongs to the field of drilling tools for geological exploration of the moon. The PDC drill bit comprises a drill bit matrix, PDC cutting teeth and spiral rock debris channels, wherein the PDC cutting teeth are symmetrically inlaid and welded at the front of the drill bit matrix, the spiral rock debris channels are two spiral grooves which ascend spirally along the peripheral wall of the drill bit matrix and are correspondingly fixedly connected with the peripheral wall, lower ports of the two spiral grooves are correspondingly connected with the PDC cutting teeth, and upper ports are rock debris discharge ports. When the PDC drill bit is adopted to drill to break rock, on one hand, the rock debris produced through rock breakage ascends gradually along with the spiral grooves and is discharged out of holes smoothly, and the moon core drilling efficiency is increased; on the other hand, along with smooth discharge of the rock debris, heat generated at the bottom of drilled holes is released and emitted, the failure rate of the drill bit is reduced remarkably, the service life of the drill bit is prolonged, accordingly, the moon core drilling efficiency is increased comprehensively, and the PDC drill bit is not limited by specifications.
Description
Technical field
The present invention is applicable to the PDC drill bit of moon core drilling, belongs to geology of Moon exploration drilling tool field.
Background technology
The moon core drilling drill bit used both at home and abroad is at present the method adopting seting welding carbide, take carbide alloy as cutting teeth fractured rock, the maximum shortcoming of its mode is that stock-removing efficiency is low, and landwaste discharges difficulty, its main manifestations is carbide alloy because shape reason cannot connection corresponding with helicla flute, landwaste is difficult to by outside helicla flute evacuation aperture, and the Rock Cutting efficiency that carbide alloy ought run into more than 6 grades as chip tooth is low, increase the working time, celestial body is in anhydrous, high vacuum, microgravity, the day and night extreme environment of temperature difference great disparity, long work adds that landwaste discharge difficulty can increase and creeps into fault, add Risks.For this reason, unobstructedly moon core drilling PDC drill bit is applicable to, to meet the demand of moon core drilling drill bit in the urgent need to exploitation high efficiency, landwaste excretion.
Summary of the invention
The object of this invention is to provide a kind of PDC drill bit being applicable to moon core drilling, by arranging the helicla flute of two spiral escalations connecting corresponding to PDC cutting teeth on PDC drill bit, for drill bit provides unimpeded drill cuttings drain passage, not only improve the efficiency of coring of PDC drill bit moon probing, and improve the application life of this PDC drill bit.
The technical scheme realizing the object of the invention is:
The present invention is applicable to moon core drilling PDC drill bit, be made up of bit matrix, PDC cutting teeth and spiral landwaste passage, the symmetrical welding-on of described PDC cutting teeth is in the front portion of bit matrix, described spiral landwaste passage is along the spiral escalation of bit matrix periphery wall and affixed two helicla flutes corresponding to periphery wall, two spiral fluted lower port are corresponding with PDC cutting teeth connects for this, and its upper port is landwaste outlet opening.
The lead angle of described spiral landwaste passage is 19-22 degree.
When implementing when adopting drill bit of the present invention to creep into, along with PDC cutting teeth creeps into produced landwaste, namely helicla flute is spiral progressively rises along two of bit matrix periphery wall, and port is discharged outside drill bit from it, and the heat produced at the bottom of stomidium under drill bit is also drained thereupon, the landwaste of in fact discharging has become the cooling medium of heat at the bottom of tap, thus reach high efficiency, landwaste drains object smoothly, meets the demand of moon probing.
The simple and direct innovation of moon core drilling PDC drill bit structure of the present invention, be specially adapted at moon table anhydrous, high vacuum, microgravity, probing demand under the extreme environmental conditions of day and night temperature difference great disparity, the present invention is designed with twin-feed spiral passage and discharges landwaste on drill bit outer circumference surface, when adopting moon core drilling PDC drill bit of the present invention to creep into brokenly rock, on the one hand, the raw landwaste of kata-rocks local products progressively rises along with helicla flute, by outside tap smoothly, improve moon core drilling efficiency, on the other hand, along with landwaste is discharged smoothly, the heat that foot of hole produces release is also discharged, the landwaste discharged has become the cooling medium of discharging foot of hole heat, significantly reduce the fault rate of drill bit, improve the application life of drill bit, thus improve moon core drilling efficiency comprehensively.In addition, spiral landwaste passage and the PDC drill bit adaptation that the present invention is used for moon core drilling PDC drill bit is arranged, and is not subject to PDC drill bit specification limits.
Accompanying drawing explanation
Fig. 1 is structure schematic top plan view of the present invention
Fig. 2 is structure front elevational schematic of the present invention
Fig. 3 is structural profile schematic diagram of the present invention
Detailed description of the invention
Now further illustrate the present invention by reference to the accompanying drawings how to implement:
The present invention is applicable to moon core drilling PDC drill bit, be made up of bit matrix, PDC cutting teeth and spiral landwaste passage, the symmetrical welding-on of PDC cutting teeth 2 is in the front portion of bit matrix 3, described spiral landwaste passage is along bit matrix 3 periphery wall spiral escalation and two helicla flutes 1 welding corresponding to periphery wall, two spiral fluted lower port 1-1 are corresponding with PDC cutting teeth 2 connects for this, its upper port 1-2 is landwaste outlet opening, and described two helicla flutes 1 make of high-abrasive material.
The lead angle of described spiral landwaste passage 1 is 19-22 degree.
Spiral landwaste passage and the PDC drill bit adaptation that the present invention is used for moon core drilling PDC drill bit is arranged, and is not subject to PDC drill bit specification limits.
When implementing when adopting drill bit of the present invention to creep into, namely progressively rise along two helicla flutes 1 of bit matrix 3 periphery wall are spiral along with PDC cutting teeth 2 creeps into produced landwaste, and port 1-2 discharges outside drill bit from it, and the heat produced at the bottom of stomidium under drill bit is also drained thereupon, the landwaste of in fact discharging has become the cooling medium of heat at the bottom of tap, thus reach high efficiency, landwaste drains object smoothly, meets the demand of moon probing.
Claims (2)
1. be applicable to moon core drilling PDC drill bit, it is characterized in that, be made up of bit matrix, PDC cutting teeth and spiral landwaste passage, the symmetrical welding-on of described PDC cutting teeth is in the front portion of bit matrix, described spiral landwaste passage is along the spiral escalation of bit matrix periphery wall and affixed two helicla flutes corresponding to periphery wall, two spiral fluted lower port are corresponding with PDC cutting teeth connects for this, and its upper port is landwaste outlet opening.
2. be according to claim 1ly applicable to moon core drilling PDC drill bit, it is characterized in that, the lead angle of spiral landwaste passage is 19-22 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937330.8A CN105569573A (en) | 2015-12-15 | 2015-12-15 | PDC drill bit applicable to core drilling of moon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937330.8A CN105569573A (en) | 2015-12-15 | 2015-12-15 | PDC drill bit applicable to core drilling of moon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105569573A true CN105569573A (en) | 2016-05-11 |
Family
ID=55880129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510937330.8A Pending CN105569573A (en) | 2015-12-15 | 2015-12-15 | PDC drill bit applicable to core drilling of moon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105569573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130933A (en) * | 2017-04-17 | 2017-09-05 | 武汉地大长江钻头有限公司 | Coring bit |
| CN109470507A (en) * | 2017-09-08 | 2019-03-15 | 哈尔滨工业大学 | The vibration penetration type lunar soil coring apparatus of spiral auxiliary dive |
| CN116792031A (en) * | 2023-05-24 | 2023-09-22 | 北京探矿工程研究所 | Moon drilling sampling drill bit and drilling tool thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4352400A (en) * | 1980-12-01 | 1982-10-05 | Christensen, Inc. | Drill bit |
| EP0730082A2 (en) * | 1995-03-03 | 1996-09-04 | Hawera Probst GmbH + Co. | Drill bit for percussive drilling |
| CN2251036Y (en) * | 1994-10-18 | 1997-04-02 | 大庆石油管理局钻井二公司 | Drag bit |
| CN101801576A (en) * | 2007-09-14 | 2010-08-11 | 彗星集团有限公司 | Boring bar tool with drill bit |
| CN202431204U (en) * | 2011-12-06 | 2012-09-12 | 铜陵市久泰重型工矿设备有限公司 | Drill bit |
-
2015
- 2015-12-15 CN CN201510937330.8A patent/CN105569573A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4352400A (en) * | 1980-12-01 | 1982-10-05 | Christensen, Inc. | Drill bit |
| CN2251036Y (en) * | 1994-10-18 | 1997-04-02 | 大庆石油管理局钻井二公司 | Drag bit |
| EP0730082A2 (en) * | 1995-03-03 | 1996-09-04 | Hawera Probst GmbH + Co. | Drill bit for percussive drilling |
| US5791424A (en) * | 1995-03-03 | 1998-08-11 | Hawera Probst Gmbh | Drill bit for the rotary-percussive drilling of preferably rock, concrete or the like |
| CN101801576A (en) * | 2007-09-14 | 2010-08-11 | 彗星集团有限公司 | Boring bar tool with drill bit |
| CN202431204U (en) * | 2011-12-06 | 2012-09-12 | 铜陵市久泰重型工矿设备有限公司 | Drill bit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130933A (en) * | 2017-04-17 | 2017-09-05 | 武汉地大长江钻头有限公司 | Coring bit |
| CN109470507A (en) * | 2017-09-08 | 2019-03-15 | 哈尔滨工业大学 | The vibration penetration type lunar soil coring apparatus of spiral auxiliary dive |
| CN109470507B (en) * | 2017-09-08 | 2020-11-13 | 哈尔滨工业大学 | Spiral auxiliary submerging vibration injection type lunar soil coring device |
| CN116792031A (en) * | 2023-05-24 | 2023-09-22 | 北京探矿工程研究所 | Moon drilling sampling drill bit and drilling tool thereof |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |
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| WD01 | Invention patent application deemed withdrawn after publication |