CN103388454B - A kind of mining bionics bit - Google Patents
A kind of mining bionics bit Download PDFInfo
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- CN103388454B CN103388454B CN201310360998.1A CN201310360998A CN103388454B CN 103388454 B CN103388454 B CN 103388454B CN 201310360998 A CN201310360998 A CN 201310360998A CN 103388454 B CN103388454 B CN 103388454B
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Abstract
The invention discloses a kind of mining bionics bit imitating dung beetle surface texture, comprise three-wing bit, it is characterized in that: the end face of described three-wing bit is provided with a more than ball-crown body, the periphery of described three-wing bit and side are provided with a more than ball crown type groove.Relative to prior art, mining bionics bit of the present invention, can play reducing adhesion resistance effect, not only effectively reduce bit wear, and easily exit when boring is collapsed, effectively avoid bit freezing phenomenon in weak seam.
Description
Technical field
The invention belongs to mining technique field, particularly relate to a kind of mining bionics bit imitating dung beetle surface texture.
Background technology
Coal resources are the topmost energy of China, and the safety and efficiently in colliery produces guarantee China's energy resource supply safety and China is industrial and economic development has material impact.
In the drill bit drilling process of colliery, drill bit, mainly by the centripetal force of drilling rod and the effect of moment of torsion, produces and advances and circular motion, thus by coal seam static pressure, frictional resistance and impact force; What China's coal-mine probing generally adopted is common three-wing bit, its end face and periphery are all level and smooth, cause bit wear in drilling process fast, energy ezpenditure is large, particularly when cherry coal bag bores lock of tool drilling, drilling mechanism is difficult to the problem exited, not only greatly through reduce production efficiency, increase energy cost, more likely because of move back bore overlong time cause gas pile up and cause gas explosion.
But bore problem for the bag drill chuck of weak seam boring, large quantifier elimination has been carried out in relevant enterprises and institutions and scientific research institution's research both at home and abroad, is not all well solved always.Therefore, need a kind of new effective ways of proposition badly and deal with this problem, for the safe coal high-efficiency mining of China provides reliable guarantee.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes and a kind of imitate dung beetle surface texture, can the effective reducing adhesion mining bionics bit that hinders, easily exit.
The technical solution adopted in the present invention is: a kind of mining bionics bit, comprise three-wing bit, it is characterized in that: the end face of described three-wing bit is provided with a more than ball-crown body, the periphery of described three-wing bit and side are provided with a more than ball crown type groove.
As preferably, described ball-crown body is in the same size, point parity column is evenly arranged on the end face of described three-wing bit.
As preferably, in described often row ball-crown body, each ball-crown body bottom surface centre of sphere spacing is 3mm.
As preferably, in described often row ball-crown body, the spacing of the even column ball-crown body bottom surface centre of sphere and the odd column ball-crown body bottom surface centre of sphere is 3mm.
As preferably, in described often row ball-crown body, the vertical distance of the even column ball-crown body bottom surface centre of sphere and the odd column ball-crown body bottom surface centre of sphere is 1.5mm.
As preferably, described ball-crown body basal diameter 2mm, spherical crown height 0.2mm.
As preferably, on the periphery that described ball crown type groove is in the same size, point parity column is evenly arranged on described three-wing bit and side.
As preferably, in described often row ball crown type groove, each ball crown type groove floor centre of sphere spacing is 3mm.
As preferably, in described often row ball crown type groove, the spacing of the even column ball crown type groove floor centre of sphere and the odd column ball crown type groove floor centre of sphere is 3mm.
As preferably, in described often row ball crown type groove, the vertical distance of the even column ball crown type groove floor centre of sphere and the odd column ball crown type groove floor centre of sphere is 1.5mm.
As preferably, described ball crown type groove bottom diameter 2mm, ball crown type groove height 0.2mm.
Relative to prior art, mining bionics bit of the present invention, can play reducing adhesion resistance effect, not only effectively reduce bit wear, and easily exit when boring is collapsed, effectively avoid bit freezing phenomenon in weak seam.
Accompanying drawing explanation
Fig. 1: the mining bionics bit design sketch of the specific embodiment of the invention.
Fig. 2: the ball-crown body physical dimension figure of the specific embodiment of the invention.
Fig. 3: the ball-crown body height dimension figure of the specific embodiment of the invention.
Fig. 4: the ball crown type groove structure dimensional drawing of the specific embodiment of the invention.
Fig. 5: the ball crown type groove height dimensional drawing of the specific embodiment of the invention.
Fig. 6: the convex closure outline drawing of the dung beetle head of the specific embodiment of the invention.
Fig. 7: the dimple profiles figure of the dung beetle pereonite backboard of the specific embodiment of the invention.
Fig. 8: the ickings in the specific embodiment of the invention sticks to the movement effects figure on dung beetle bionics bit Non-smooth surface periphery.
Fig. 9: the ickings in the specific embodiment of the invention sticks to the movement effects figure on normal drill bit smooth circumferential face.
Detailed description of the invention
Below with reference to the drawings and specific embodiments, the present invention is described further.
Ask for an interview Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the technical solution adopted in the present invention is: a kind of mining bionics bit imitating dung beetle surface texture, comprise three-wing bit, the end face of three-wing bit is provided with a more than ball-crown body, ball-crown body basal diameter 2mm, spherical crown height 0.2mm, ball-crown body is in the same size, point parity column is evenly arranged on the end face of three-wing bit; Often in row ball-crown body, each ball-crown body bottom surface centre of sphere spacing is 3mm; The spacing of the even column ball-crown body bottom surface centre of sphere and the odd column ball-crown body bottom surface centre of sphere is 3mm; The vertical distance of the even column ball-crown body bottom surface centre of sphere and the odd column ball-crown body bottom surface centre of sphere is 1.5mm; The periphery of three-wing bit and side are provided with a more than ball crown type groove, ball crown type groove bottom diameter 2mm, ball crown type groove height 0.2mm, on the periphery that ball crown type groove is in the same size, point parity column is evenly arranged on three-wing bit and side; Often in row ball crown type groove, each ball crown type groove floor centre of sphere spacing is 3mm; The spacing of the even column ball crown type groove floor centre of sphere and the odd column ball crown type groove floor centre of sphere is 3mm; The vertical distance of the even column ball crown type groove floor centre of sphere and the odd column ball crown type groove floor centre of sphere is 1.5mm.
Ask for an interview Fig. 6, for the convex closure outline drawing of dung beetle head, in the drill bit drilling process of colliery, drill bit, mainly by the centripetal force of drilling rod and the effect of moment of torsion, produces and advances and circular motion, thus by coal seam static pressure, frictional resistance and impact force, similar when boring soil to dung beetle head, for reaching the object of reducing adhesion resistance, select the biomimetic features of convex hull-shaped as bit face of dung beetle head.
Dung beetle head construction has been covered with circular convex closure, and this structure well can reduce frictional force.In normal drill bit, bit face is smooth, so frictional force is evenly distributed in bit face, make bit face continued wear, and non-smooth surface is as arranged the drill bit of convex closure when creeping into due to distribution that frictional force is uneven, so the wearing and tearing that surface is interrupted, wear and tear in convex closure surface by side.In abrasive material experiment, make abrasive particle penetrate in the same direction on biomimetic material surface, result is due to the existence of convex closure above, and the wearing and tearing on convex closure surface below are significantly reduced, and this phenomenon is called guiding function.Based on dung beetle head construction bionics bit comparatively normal drill bit under the same conditions, timeliness can improve more than 70%, reduction by more than 30% of consuming energy, illustrates that this structure effectively can improve drilling efficiency and less frictional force.Meanwhile, this structure of dung beetle head can strengthen the hydrophobicity on its surface, makes the contact angle of water remain on 95 ° ~ about 100 °.
The result of Chinese scholars experiment and research confirms, takes even column ball-crown body and odd column ball-crown body interlaced arrangement mode, at abrasive material experiment (2.35m/s, 1316.3m; ) after, its wear extent decreases 58.1% than the sample of smooth surface.
On the other hand, its convex closure structure, not only can produce " guiding effect ", can also reduce the contact area with soil.
Suppose that the pressure between soil and drilling rod is certain, then by friction formula:
F=μA·p
Wherein: F is maximum static friction force; μ is friction factor; A is contact area; P is pressure;
Can find out, when pressure and friction factor constant, maximum static friction force is directly proportional to contact area, then this structure can reduce frictional force effectively.
Ask for an interview Fig. 7, for the dimple profiles figure of dung beetle pereonite backboard, in drill bit drilling process periphery and coal seam contact lower, main by soil frictional force effect, and due to the coal seam touching drill bit circumference drill-through by drill bit, its cohesion is poor, to dung beetle pereonite backboard bore in native process similar, for reaching the effect of de-native drag reduction, select the dimple-shaped of dung beetle pereonite backboard as the biomimetic features of drill bit periphery and side.
Ask for an interview Fig. 8, Fig. 9, coal cinder circles in process due to inertia and the extruding of rear side ickings at drill bit, coal cinder moves from left to right relative to drill bit periphery and side, when arriving No. 1 pit, because the existence of pit will depart from bit face, afterwards because inertia and gravity come off, subsequently No. 2, No. 3 pits also can guarantee that the ickings sticking to bit face comes off in time, thus reach the effect of reducing adhesion.And after on the smooth circumferential face that coal cinder sticks to normal drill bit, coal cinder can continue to stick to its surface, to cause the very large resistance that creeps into, worn drill bit and consumed energy.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a mining bionics bit, comprises three-wing bit, it is characterized in that: the end face of described three-wing bit is provided with a more than ball-crown body, and the periphery of described three-wing bit and side are provided with a more than ball crown type groove; Described ball-crown body is in the same size, point parity column is evenly arranged on the end face of described three-wing bit; In described often row ball-crown body, each ball-crown body bottom surface centre of sphere spacing is 3mm; In described often row ball-crown body, the spacing of the even column ball-crown body bottom surface centre of sphere and the odd column ball-crown body bottom surface centre of sphere is 3mm; In described often row ball-crown body, the vertical distance of the even column ball-crown body bottom surface centre of sphere and the odd column ball-crown body bottom surface centre of sphere is 1.5mm; Described ball-crown body basal diameter 2mm, spherical crown height 0.2mm.
2. mining bionics bit according to claim 1, is characterized in that: on the periphery that described ball crown type groove is in the same size, point parity column is evenly arranged on described three-wing bit and side.
3. mining bionics bit according to claim 2, is characterized in that: in described often row ball crown type groove, and each ball crown type groove floor centre of sphere spacing is 3mm.
4. mining bionics bit according to claim 2, is characterized in that: in described often row ball crown type groove, the spacing of the even column ball crown type groove floor centre of sphere and the odd column ball crown type groove floor centre of sphere is 3mm.
5. mining bionics bit according to claim 2, is characterized in that: in described often row ball crown type groove, the vertical distance of the even column ball crown type groove floor centre of sphere and the odd column ball crown type groove floor centre of sphere is 1.5mm.
6. the mining bionics bit according to claim 1,2,3,4 or 5, is characterized in that: described ball crown type groove bottom diameter 2mm, ball crown type groove height 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360998.1A CN103388454B (en) | 2013-08-19 | 2013-08-19 | A kind of mining bionics bit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360998.1A CN103388454B (en) | 2013-08-19 | 2013-08-19 | A kind of mining bionics bit |
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| Publication Number | Publication Date |
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| CN103388454A CN103388454A (en) | 2013-11-13 |
| CN103388454B true CN103388454B (en) | 2015-08-05 |
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| CN201310360998.1A Expired - Fee Related CN103388454B (en) | 2013-08-19 | 2013-08-19 | A kind of mining bionics bit |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603604B (en) * | 2013-11-21 | 2016-04-06 | 西南石油大学 | A kind of flow path groove surface has the anti-mud drum PDC drill bit of pit |
| CN105019833B (en) * | 2015-07-21 | 2017-12-08 | 吉林大学 | A kind of bionical adaptive PDC drill bit |
| CN106567678A (en) * | 2016-03-26 | 2017-04-19 | 邓君 | Safe and efficient anti-skid drill bit used for air-leg rock drill |
| CN108625788B (en) * | 2018-07-10 | 2023-05-26 | 西南石油大学 | Novel pdc and cone combined drill bit |
| CN110469274A (en) * | 2019-08-26 | 2019-11-19 | 山东源运通矿山装备科技有限公司 | Coal drill bit |
| CN114109255B (en) * | 2021-11-24 | 2023-06-27 | 重庆科技学院 | Drilling device based on bionics |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547223C (en) * | 2006-06-07 | 2009-10-07 | 吉林大学 | Biomimetic golden-embedded diamond drilling bit and manufacture method thereof |
| CN101387187A (en) * | 2008-10-30 | 2009-03-18 | 吉林大学 | Bionic non-smooth spiral drill |
| CN202520234U (en) * | 2012-03-27 | 2012-11-07 | 吉林大学 | Bionic non-smooth PDC (Polycrystalline Diamond Compact) |
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- 2013-08-19 CN CN201310360998.1A patent/CN103388454B/en not_active Expired - Fee Related
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| CN103388454A (en) | 2013-11-13 |
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