CN103628821B - Be applicable to soft-hard lead into the core bit of object - Google Patents
Be applicable to soft-hard lead into the core bit of object Download PDFInfo
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- CN103628821B CN103628821B CN201310682456.6A CN201310682456A CN103628821B CN 103628821 B CN103628821 B CN 103628821B CN 201310682456 A CN201310682456 A CN 201310682456A CN 103628821 B CN103628821 B CN 103628821B
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- cutting element
- bit
- soft
- applicable
- hard lead
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- 239000011159 matrix material Substances 0.000 claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 230000001154 acute Effects 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 17
- 239000000843 powder Substances 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 23
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 101710031899 moon Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001367 Arteries Anatomy 0.000 description 1
- 229940105657 CATALASE Drugs 0.000 description 1
- 102000016938 EC 1.11.1.6 Human genes 0.000 description 1
- 108010053835 EC 1.11.1.6 Proteins 0.000 description 1
- 210000003462 Veins Anatomy 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003292 diminished Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The invention provides one be applicable to soft-hard lead into the core bit of object, comprise bit matrix and be arranged on the taper head below bit matrix, bit matrix is hollow cylindrical, drilling rod connecting portion is provided with at bit upper end, taper head opening inside diameter is less than the internal diameter of bit matrix hollow cylinder, bit matrix external surface is provided with external spiral, at the inclined-plane of taper head and bottom surface fluting, the cutting element of respective shapes is installed in groove, cutting element is hinged in groove by rivet, the locating part of restriction cutting element initial position is provided with between hole on rivet and cutting element, have between locating part and bottom land between cutting element and groove and be provided with high temperature resistant elastic cushion block.This is soft-hard lead adaptable into the core bit of object, and broken while not needing more bit change can realize soft or hard rock; The row's of realization powder is smooth and easy, and heat in metal cutting and frictional heat, by the bottom of drilling cuttings tap, lower heat power consumption; In order to improve stock-removing efficiency, cutting edge can be made to have multiple cutting angle by the size adjusting rubber cushion blocks.
Description
Technical field
The invention belongs to space drilling field, relate under space environment, utilize core bit to carry out moonscape coring, to obtain the drill bit structure of former state lunar soil.Particularly at complicated lunar soil, comprise soft, hard lead into the core bit under object condition.
Background technology
In the prior art, in moon exploration program, unmanned moon sampling returns is key one step being familiar with the moon, by the analysis of adopting back lunar soil, can make a breakthrough on numerous direction of scientific rersearch such as menology environment, geological structure, menology mineralogical composition, lunar base addressing.Core bit is one of the important tool required for menology probing, and can it play a key effect to realize lunar soil sampling smoothly.
Moonscape may have basement rock exposure place except the cliff place of only a few very steep hills arteries and veins, impact crater and volcanic vent, remainder is mostly covered with the lunar soil that a layer thickness does not wait, that is moonscape not only has loose lunar soil, also has a small amount of lunar rock.Lunar soil shows as again the different feature such as loose, consolidation, and increases along with its compactness of increase of the degree of depth.Therefore the Strength Changes scope of moonscape lunar soil is very large, is all found, proposes very high challenge to the drill sampling technology of moonscape from loose lunar soil to firm non-decayed basalt.
Due to the complexity of lunar soil itself, when carrying out lunar soil and creeping into, lunar rock may be met, therefore for drill bit must be applicable to soft, hard different qualities creep into object, from loose lunar soil to hard lunar rock, have and extremely strong creep into object compliance, this proposes very high challenge to core bit design.The earth is drilled and drilling project is constructed, and the core bit adopted is all design based on drillability of rock grade, drillability rank is different, the drill bit material adopted is different, and drill bit structure is not identical yet, does not also have the core bit that simultaneously can be applicable to friable soil and solid rock at present.
Limited to the understanding of lunar soil at present, the drillability of lunar soil is still not clear, and also brings difficulty to core bit design.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of core bit structure being applicable to loose lunar soil and lunar rock, the coring requirement of complicated lunar soil can be met, ensure carrying out smoothly of sampling work.
For achieving the above object, the invention provides one be applicable to soft-hard lead into the core bit of object, comprise bit matrix and be arranged on the taper head below bit matrix, described bit matrix is hollow cylindrical, drilling rod connecting portion is provided with at described bit upper end, described taper head opening inside diameter is less than the internal diameter of described bit matrix hollow cylinder, described bit matrix external surface is provided with external spiral, at the inclined-plane of described taper head and bottom surface fluting, the cutting element of respective shapes is installed in described groove, described cutting element is hinged in described groove by rivet, the locating part of restriction cutting element initial position is provided with between hole on described rivet and described cutting element, have between described locating part and described bottom land between described cutting element and described groove and be provided with high temperature resistant elastic cushion block.
Preferably, the conical surface form fit of described cutting element and described conical head, the lower end of described cutting element extends to described taper head opening and stretches in described opening range, and described taper cephalic par at least 2mm is given prominence in described cutting element lower end.
Preferably, described high temperature resistant elastic cushion block is rubber cushion blocks, and described rubber cushion blocks is arranged on described bottom land, and described rubber cushion blocks is bonding with described bottom land.
Preferably, described cutting element upper end outer corners is acute angle, has angle between described cutting element and described bit matrix axis.
Preferably, the angle of described cutting element outer corners is 30 °-60 °.
Preferably, described cutting element upper end is connected with described external spiral.
Preferably, described cutting element is 3-4, and corresponding external spiral is also 3-4.
Preferably, the inclined-plane of described taper head has Conical Spiral Groove, and described Conical Spiral Groove is communicated with the space between two external spirals, and described helicla flute is consistent with described cutting element incline direction.
Preferably, described cutting element outer corners external diameter is greater than described external spiral external diameter.
Provided by the invention be applicable to soft-hard lead adaptable into the core bit of object, the soft or hard operating mode again and again changed when can tackle lunar soil core-drilling, does not need more bit change, ensures the carrying out smoothly of sampling work; Helicla flute, the form that arranges between external screw thread and cutting element can the row's of realization powder smooth and easy, heat in metal cutting and frictional heat, by the bottom of drilling cuttings tap, effectively lower heat power consumption; In order to improve stock-removing efficiency, cutting edge can be made to have different cutting angles by the size adjusting rubber cushion blocks.
Accompanying drawing explanation
That Fig. 1 is that the present invention is applicable to is soft-structural representation that presents when running into rock of the core bit hard lead into object;
That Fig. 2 is that the present invention is applicable to is soft-structural representation that presents when running into lunar soil of the core bit hard lead into object;
That Fig. 3 is that the present invention is applicable to is soft-hard lead into the structural representation of the core bit of object;
That Fig. 4 is that the present invention is applicable to is soft-hard lead into the end face structure schematic diagram of the core bit of object;
That Fig. 5 is that the present invention is applicable to is soft-hard lead into the structural representation of locating part between the rivet and cutting element of the core bit of object.
In figure: 1-drill bit body, 2-taper head, 3-cutting element, 4-external spiral, 5-helicla flute, 6-rivet, 7-is high temperature resistant elastic cushion block, 8-flange
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
Please refer to Fig. 3, Fig. 4 and Fig. 5, that Fig. 3 is that the present invention is applicable to is soft-hard lead into the structural representation of the core bit of object, that Fig. 4 is that the present invention is applicable to is soft-hard lead into the end face structure schematic diagram of the core bit of object, and that Fig. 5 is that the present invention is applicable to is soft-hard lead into the structural representation of locating part between the rivet 6 and cutting element 3 of the core bit of object.
One be applicable to soft-hard lead into the core bit of object, the taper head 2 comprising bit matrix 1 and be arranged on below bit matrix 1, described bit matrix 1 is hollow cylindrical, drilling rod connecting portion is provided with at described bit upper end, described taper head 2 opening inside diameter is less than the internal diameter of described bit matrix 1 hollow cylinder, described bit matrix 1 external surface is provided with external spiral 4, at the inclined-plane of described taper head 2 and bottom surface fluting, the cutting element 3 of respective shapes is installed in described groove, described cutting element 3 is hinged in described groove by rivet 6, the locating part being provided with restriction cutting element 3 initial position between hole on described rivet 6 and described cutting element 3 (is provided with flange 8 on rivet 6 surface and cutting element 3 hole wall, two flanges 8 hang together and play the effect of restriction initial position), have between described locating part and described bottom land between described cutting element 3 and described groove and be provided with high temperature resistant elastic cushion block 7.
The conical surface form fit of described cutting element 3 and described conical head, the lower end of described cutting element 3 extends to described taper head 2 opening and stretches in described opening range, and described taper head 2 end at least 2mm is given prominence in described cutting element 3 lower end.
Described high temperature resistant elastic cushion block 7 is rubber cushion blocks, and described rubber cushion blocks is arranged on described bottom land, and described rubber cushion blocks is bonding with described bottom land.
Described cutting element 3 upper end outer corners is acute angle, has angle between described cutting element 3 and described bit matrix 1 axis.
The angle of described cutting element 3 outer corners is 30 °-60 °.
Described cutting element 3 upper end is connected with described external spiral 4.
Described cutting element 3 is 3-4, and corresponding external spiral 4 is also 3-4.
The inclined-plane of described taper head 2 has Conical Spiral Groove 5, and described Conical Spiral Groove 5 is communicated with the space between two external spirals 4.
Described cutting element 3 outer corners external diameter is greater than described external spiral 4 external diameter.
When creeping in soft, hard, act as mainly creep into mode to cut (shearing), cutting element 3 angle that deflection is certain along clockwise direction, conforms to drilling direction, is beneficial to the discharge of lunar soil and drilling cuttings.
Cutting element 3 material is superhard composite polycrystal-diamond, is made up of cemented carbide powder and diamond particles, has superpower hardness, abrasion resistance and self-sharpening.
Please refer to Fig. 2, that Fig. 2 is that the present invention is applicable to is soft-structural representation that presents when running into lunar soil of the core bit hard lead into object.
When creeping into loose lunar soil, because the oppressive force of loose lunar soil to cutting element 3 is less, cutting element 3 lower edge has certain angle of slope, and drill bit entirety is in conical surface scraper form, and the upper surface of cutting element 3 is acute angle, reduces cutting resistance, improves the ability of breaking ground; Due to the angle that cutting element 3 deflection is certain, and consistent with helicla flute on conical head 5 direction, after cutting element 3 cuts soil, directly enter the discharge that Conical Spiral Groove 5 is beneficial to drilling cuttings, reduce broken rock energy consumption.
Please refer to Fig. 1, that Fig. 1 is that the present invention is applicable to is soft-structural representation that presents when running into rock of the core bit hard lead into object.
When meeting rock, the front end face (lower edge) of cutting element 3 is under pressure larger, the angle of slope of lower edge is diminished and even becomes horizontal direction, the initial contact area between cutting element 3 and rock is made to share equally to whole cutting element 3 lower edge, cutting force is large, be easy to rock cutting, along with creeping into deeply, diamond compact (cutting element 3, inclined-plane down together) also participates in cutting, tap bed rock powder, effectively prevents secondary cutting to the wearing and tearing of diamond compact, reduces brokenly rock power consumption simultaneously.Good effect is had to the catalase in shaft bottom.
Cutting edge lower end protrudes drill bit bottom surface 2 ~ 3mm downwards, ensures that cutting element 3 successfully can cut rock; Cutting element 3 outer end exceeds drill body external diameter, makes bit body and hole wall there is gap, and the row's of guarantee powder is smooth and easy; Cutting element 3 lower end exceeds the internal diameter of drill body, can core smoothly, and heat in metal cutting and frictional heat, by the bottom of drilling cuttings tap, effectively lower heat power consumption.
Above-described embodiment is only for the invention example is clearly described, and the restriction not to the invention detailed description of the invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All within the spirit and principles in the present invention any apparent change of extending out or variation be still among the protection domain of the invention claim.
Claims (9)
1. one kind be applicable to soft-hard lead into the core bit of object, comprise bit matrix and be arranged on the taper head below bit matrix, described bit matrix is hollow cylindrical, drilling rod connecting portion is provided with at described bit upper end, described taper head opening inside diameter is less than the internal diameter of described bit matrix hollow cylinder, described bit matrix external surface is provided with external spiral, it is characterized in that, at the inclined-plane of described taper head and bottom surface fluting, the cutting element of respective shapes is installed in described groove, described cutting element is hinged in described groove by rivet, the locating part of restriction cutting element initial position is provided with between hole on described rivet and described cutting element, high temperature resistant elastic cushion block is provided with between described cutting element and described groove.
2. according to claim 1 be applicable to soft-hard lead into the core bit of object, it is characterized in that, the conical surface form fit of described cutting element and described taper head, the lower end of described cutting element extends to described taper head opening and stretches in described opening range, and described taper cephalic par at least 2mm is given prominence in described cutting element lower end.
3. according to claim 2 be applicable to soft-hard lead into the core bit of object, it is characterized in that, described high temperature resistant elastic cushion block is rubber cushion blocks, and described rubber cushion blocks is arranged on described bottom land, and described rubber cushion blocks is bonding with described bottom land.
4. according to claim 3 be applicable to soft-hard lead into the core bit of object, it is characterized in that, described cutting element upper end outer corners is acute angle, described cutting element and described bit matrix axially between there is angle.
5. according to claim 4 be applicable to soft-hard lead into the core bit of object, it is characterized in that, the angle of described cutting element outer corners is 30 °-60 °.
6. according to claim 4 be applicable to soft-hard lead into the core bit of object, it is characterized in that, described cutting element outer corners external diameter is greater than described external spiral external diameter.
7. according to claim 1-5 arbitrary described be applicable to soft-hard lead into the core bit of object, it is characterized in that, described cutting element upper end is connected with described external spiral.
8. according to claim 6 be applicable to soft-hard lead into the core bit of object, it is characterized in that, described cutting element is 3-4, and corresponding external spiral also be that 3-4 is individual.
9. according to claim 4 be applicable to soft-hard lead into the core bit of object, it is characterized in that, the inclined-plane of described taper head has Conical Spiral Groove, and described Conical Spiral Groove is communicated with the space between two external spirals, and described helicla flute is consistent with the incline direction of described cutting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682456.6A CN103628821B (en) | 2013-12-12 | 2013-12-12 | Be applicable to soft-hard lead into the core bit of object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682456.6A CN103628821B (en) | 2013-12-12 | 2013-12-12 | Be applicable to soft-hard lead into the core bit of object |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103628821A CN103628821A (en) | 2014-03-12 |
| CN103628821B true CN103628821B (en) | 2016-02-03 |
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| CN201310682456.6A Expired - Fee Related CN103628821B (en) | 2013-12-12 | 2013-12-12 | Be applicable to soft-hard lead into the core bit of object |
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| CN106499341A (en) * | 2015-09-04 | 2017-03-15 | 钟建华 | Portable anti-skidding puts coring bit |
| CN106150434B (en) * | 2016-08-25 | 2019-04-05 | 山东三田临朐石油机械有限公司 | Top uncoupling type paraffin scraper |
| CN106223855B (en) * | 2016-09-06 | 2018-04-13 | 浙江省交通工程建设集团有限公司 | A kind of Pneumatic control type for embedded rock pile hard-soft heterogeneous ground cuts rock device |
| CN107130933A (en) * | 2017-04-17 | 2017-09-05 | 武汉地大长江钻头有限公司 | Coring bit |
| CN107630664B (en) * | 2017-10-31 | 2018-08-10 | 吉林大学 | A kind of warm ice sheet drilling ice auger drill bit |
| CN116255090B (en) * | 2023-05-15 | 2023-07-25 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Rock sampling equipment |
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|---|---|---|---|---|
| EP0285678A1 (en) * | 1985-08-02 | 1988-10-12 | Eastman Teleco Company | Earth boring bit for soft to hard formations |
| CN201747279U (en) * | 2010-08-27 | 2011-02-16 | 董庆康 | Geological exploration drilling machine bit |
| CN102128013A (en) * | 2011-03-07 | 2011-07-20 | 佛山市南海锐力臣工具有限公司 | Diamond impregnated wire line coring geological bit and manufacturing method thereof |
| CN202483457U (en) * | 2012-04-01 | 2012-10-10 | 北京金宝顺福石油技术开发有限公司 | 8.375-inch-long eight-scraper polycrystalline diamond compact (PDC) coring bit |
| CN102721572A (en) * | 2012-06-18 | 2012-10-10 | 哈尔滨工业大学 | Drilling coring sampling mechanism with double-layer soft bag |
| CN203769664U (en) * | 2013-12-12 | 2014-08-13 | 中国地质大学（北京） | Coring bit suitable for soft and hard drilled objects |
-
2013
- 2013-12-12 CN CN201310682456.6A patent/CN103628821B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0285678A1 (en) * | 1985-08-02 | 1988-10-12 | Eastman Teleco Company | Earth boring bit for soft to hard formations |
| CN201747279U (en) * | 2010-08-27 | 2011-02-16 | 董庆康 | Geological exploration drilling machine bit |
| CN102128013A (en) * | 2011-03-07 | 2011-07-20 | 佛山市南海锐力臣工具有限公司 | Diamond impregnated wire line coring geological bit and manufacturing method thereof |
| CN202483457U (en) * | 2012-04-01 | 2012-10-10 | 北京金宝顺福石油技术开发有限公司 | 8.375-inch-long eight-scraper polycrystalline diamond compact (PDC) coring bit |
| CN102721572A (en) * | 2012-06-18 | 2012-10-10 | 哈尔滨工业大学 | Drilling coring sampling mechanism with double-layer soft bag |
| CN203769664U (en) * | 2013-12-12 | 2014-08-13 | 中国地质大学（北京） | Coring bit suitable for soft and hard drilled objects |
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| Publication number | Publication date |
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| CN103628821A (en) | 2014-03-12 |
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Granted publication date: 20160203 Termination date: 20161212 |