EP1302621A1 - Trépan pour matériaux très durs - Google Patents
Trépan pour matériaux très durs Download PDFInfo
- Publication number
- EP1302621A1 EP1302621A1 EP02292418A EP02292418A EP1302621A1 EP 1302621 A1 EP1302621 A1 EP 1302621A1 EP 02292418 A EP02292418 A EP 02292418A EP 02292418 A EP02292418 A EP 02292418A EP 1302621 A1 EP1302621 A1 EP 1302621A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- ramp
- cylindrical
- face
- parts
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title description 4
- 230000033001 locomotion Effects 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 5
- 239000010438 granite Substances 0.000 abstract description 5
- 241000425571 Trepanes Species 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Definitions
- the subject of the present invention is a drill bit specially suitable for drilling or for making anchor holes in the granite or other very hard materials.
- An object of the present invention is therefore to provide a new drill bit which improves the performance of this operation without being subject to the difficulties of recharging the active elements of the trepan.
- the lower part of the drill bit comes first hit the ground where we want to drill then the part upper, guided in translation by the cooperation of the recess and the axial drilling and axial cylindrical guide, approaches the part lower.
- the cooperation of the ramp-shaped recess with the ramp-shaped extension converts the movement of vertical translation of the upper part in a rotational movement of this same part around the axis common to the axial bore and to the guide axial cylindrical.
- the upper part strikes in rotation the lower part transmitting to its active face a movement of rotation which is added to the vertical implant.
- the male and female elements in the form of ramp having a helical shape corresponding to the cylindrical shape upper and lower parts of the drill bit one obtains, during their approximation, under optimal conditions, the conversion of translational movement of the upper bit in one rotational movement of this same upper part of the drill bit.
- the vertical planes of the ramps collide, this which produces a rotation of the lower part.
- the entire drill bit 10 is constituted by a part lower 12 and by an upper part 14.
- the upper part 14 has at its upper end 16 ears or the like 18 for allow the end of the cable or line 20 to which the drill bit to be fixed is suspended.
- the upper part 14 is guided in vertical translation relative to the lower part 12 by the cooperation of a guide cylindrical 22 which projects out from the underside 24 of the part upper 14 and a cylindrical axial bore 26 drilled in the part lower 12 of the drill bit and opening into the upper face 12 'of the lower part 12.
- the facing faces 24 and 12 ' are parallel between them and substantially horizontal.
- the cylindrical guide 22 and the bore cylindrical 26 define a common vertical axis X-X 'along which the upper part 14 can move relative to lower part 12.
- extension cylindrical axial was integral with the lower part 12 and that the bore cylindrical axial was made in its upper part 14.
- the upper part 14 which is preferably cylindrical with an axis X-X ' also preferably includes two extensions 30 and 32 diametrically opposite with respect to the axis XX 'and which protrude in the lower face 24 of the upper part 14. These extensions are limited, on the one hand, by a plane A passing through the axis XX ', on the other hand, by a portion of propeller H. The same applies to the extension 32.
- the edge H of the propeller-shaped extension 30 or 32 thus constitutes a ramp capable of cooperating with a conjugate ramp formed in the lower part 12 of the drill bit.
- the combined ramp is made up of diametrically opposite recesses 34 and 36.
- the recesses are delimited, on the one hand, by a plane A 'passing through the axis X-X' and, on the other hand, by a portion of propeller H 'not the same as the propeller H of the part higher. It is understood that, during the translational movement of the upper part 14 relative to lower part 12 in the direction axial X-X ', the extensions 30 and 32 of the upper part can gradually penetrate into the recesses 34 and 36 of the part lower.
- the planes A and A ' respectively define for the extensions and recesses of vertical surfaces 23 and 25 arranged in planes which contain the axis XX '.
- the lower end 28 of the part lower 12 is fitted with picks or the like 38 which are rendered more active and more efficient thanks to the rotation of the lower part 12.
- the lower parts 12 and upper 14 are made integral in translation by two chains such as 42 whose ends 42A and 42B are respectively fixed on the upper 14 and lower 12 parts of the drill bit.
- the chains 42 are of course stretched and, in this position, the lower ends 30a, 32a of the extensions 30 and 32 are slightly engaged in the recesses 34 and 36 of such so that the end of the H-shaped ramp is in contact with the end of the ramp H 'thus achieving a pre-positioning of the two parts of the drill bit to allow the cooperation of the ramps helical and therefore the rotation of the lower part of the drill bit.
- Figure 1A there are shown the two parts of the drill bit in their relative occupied positions when the bottom of the drill bit has not yet touched the ground to be drilled.
- Figure 1B shows the drill bit in an intermediate position in which the lower part 12 has already hit the ground S and the top started to get closer to the lower part, the cooperation of the helix-shaped ramps H and H ' having caused the beginning of the rotation of the upper part 14 according to the direction of arrow F.
- the cylindrical guide which serves as a guide in translation and a pivot axis is constituted by a separate part from the upper and lower parts of the drill bit.
- the upper part 14 has a blind axial bore 50 and the lower part 12 also has an axial bore 52 opening into the lower face 26. This latter bore 52 comprising a shoulder 54 near its lower end.
- the extension cylindrical is constituted by a shaft element 56 mounted free in translation and rotation in the axial bores 50 and 52.
- the end lower 58 of the shaft 56 has a reduced diameter corresponding to shoulder 54.
- the upper 14 and lower 12 parts of the drill bit include also respectively extensions 30 and 32 forming a ramp and recesses 34 and 36 forming a ramp as shown in the Figures 1A to 1C.
- the rotation of the upper part causes a rotation of the lower part 12 as already explained.
- the upper part 14 of the drill bit causes the shaft 56 to descend which flushes mud that has entered the lower part of the axial bore 52, as a piston would do. This causes forced circulation of the mud between the bits of the drill bit which allows the "cleaning" of the parts 38 of the drill bit.
- the number of extensions 30, 32 and therefore the number of recesses 34, 36 is limited to two. This allows to have a sufficient relative angle of rotation of the two parts of the drill bit to cause sufficient rotation of the lower part of the drill bit. it also allows to have vertical surfaces 23 and 25 and therefore to have efficient torque transmission.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Drilling Tools (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Physical Vapour Deposition (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
- une partie supérieure (14) fixée à des câbles de sustentation et une face inférieure (24) en regard de la face supérieure de la partie inférieure ;
- des moyens (42) pour limiter l'écartement des deux parties ;
- un alésage axial cylindrique (26) traversant lesdites deux parties ;
- un guide cylindrique (22) pénétrant dans ledit alésage (26) ;
- au moins un évidement formant rampe (34, 36) et au moins un prolongement en forme de rampe (30, 32) pour coopérer avec ledit évidement formant rampe de telle manière que le rapprochement de la partie supérieure vers la partie inférieure soit converti en un mouvement de rotation de ladite partie supérieure autour de l'axe vertical, la fin de la rotation de la partie supérieure provoquant la rotation de la partie inférieure.
Description
- une partie inférieure ayant une face inférieure active et une face supérieure sensiblement parallèle à la face active ;
- une partie supérieure comportant une face supérieure munie d'organes de fixation aux câbles de sustentation et une face inférieure en regard de la face supérieure de la partie inférieure ; et
- des moyens pour limiter l'écartement des deux parties tout en autorisant leur rapprochement ;
- un alésage axial cylindrique traversant lesdites deux parties ;
- un guide cylindrique pénétrant librement dans ledit alésage axial ;
- au moins un évidement formant rampe débouchant dans une des faces en regard et au moins un prolongement en forme de rampe faisant saillie hors de la deuxième face en regard pour coopérer avec ledit évidement formant rampe de telle manière que le rapprochement de la partie supérieure vers la partie inférieure soit converti en un mouvement de rotation de ladite partie supérieure autour de l'axe commun à l'alésage axial et au guide cylindrique, la fin de la rotation de la partie supérieure provoquant la rotation de la partie inférieure.
Claims (9)
- Trépan caractérisé en ce qu'il comprend :une partie inférieure (12) ayant une face inférieure active et une face supérieure (12') sensiblement parallèle à la face active ;une partie supérieure (14) comportant une face supérieure (16) munie d'organes de fixation (18) aux câbles de sustentation et une face inférieure (24) en regard de la face supérieure (12') de la partie inférieure ; etdes moyens (42) pour limiter l'écartement des deux parties tout en autorisant leur rapprochement ;un alésage axial cylindrique (26) traversant lesdites deux parties ;un guide cylindrique (22) pénétrant librement dans ledit alésage axial ;au moins un évidement formant rampe (34, 36) débouchant dans une des faces en regard et au moins un prolongement en forme de rampe (30, 32) faisant saillie hors de la deuxième face en regard pour coopérer avec ledit évidement formant rampe de telle manière que le rapprochement de la partie supérieure (14) vers la partie inférieure (12) soit converti en un mouvement de rotation de ladite partie supérieure autour de l'axe commun à l'alésage axial et au guide cylindrique, la fin de la rotation de la partie supérieure provoquant la rotation de la partie inférieure.
- Trépan selon la revendication 1, caractérisé en ce que ledit évidement en forme de rampe (34, 36) fait partie de la partie inférieure (12) du trépan et que le guide cylindrique (22) et le prolongement en forme de rampe (30, 32) font partie de la partie supérieure du trépan.
- Trépan selon la revendication 1, caractérisé en ce que ledit guide cylindrique (22) est constituée par une pièce distincte des parties supérieure (14) et inférieure (12), ledit guide ayant la forme d'un arbre cylindrique engagé dans l'alésage axial cylindrique (26) ménagé dans lesdites parties supérieure et inférieure du trépan.
- Trépan selon l'une quelconque des revendications 2 et 3, caractérisé en ce que les parties inférieure (12) et supérieure (14) sont cylindriques avec des axes correspondant respectivement à l'axe du guide cylindrique (22) et à l'axe de l'alésage axial (26), et en ce que :ledit prolongement (30, 32) formant rampe est limité par une portion d'hélice cylindrique (H) et par une portion de plan (A) passant par l'axe dudit alésage axial,et ledit évidement formant rampe (34, 36) est limité par une portion d'hélice (H') identique à l'hélice du prolongement formant rampe et par une portion de plan vertical (A') passant par l'axe dudit alésage axial, la coopération des plans verticaux provoquant la rotation de la partie inférieure à la fin du mouvement de rotation de la partie supérieure.
- Trépan selon l'une quelconque des revendications 2 à 4, caractérisé en ce qu'il comprend deux évidements (34, 36) formant rampe disposés symétriquement par rapport à l'axe commun à l'alésage cylindrique (26) et au guide cylindrique (22) et deux prolongements formant rampe (30, 32) disposés symétriquement par rapport à l'axe commun à l'alésage cylindrique et au guide cylindrique.
- Trépan selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens pour limiter l'écartement entre les parties inférieure et supérieure comprennent au moins une chaíne (42) dont les extrémités (42A, 42B) sont respectivement solidaires de la paroi externe desdites parties supérieure (14) et inférieure (12).
- Trépan selon la revendication 6, caractérisé en ce qu'il comprend deux chaínes (42) disposées symétriquement par rapport à l'axe commun à l'alésage cylindrique (26) et au guide cylindrique (22).
- Trépan selon l'une quelconque des revendications 6 et 7, caractérisé en ce que, lorsque la ou les deux chaínes (42) sont tendues correspondant à l'écartement maximal entre les parties inférieure (12) et supérieure (14), l'extrémité de la ou des prolongements formant rampe (30, 32) pénètre dans le ou les évidements formant rampe (34, 36).
- Trépan selon l'une quelconque des revendications 2 à 8, caractérisé en ce que ledit alésage axial (26) ménagé dans ladite partie inférieure (12) débouche dans la face inférieure de ladite partie inférieure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0113317 | 2001-10-16 | ||
FR0113317A FR2830898B1 (fr) | 2001-10-16 | 2001-10-16 | Trepan pour materiaux tres durs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1302621A1 true EP1302621A1 (fr) | 2003-04-16 |
EP1302621B1 EP1302621B1 (fr) | 2006-04-19 |
Family
ID=8868344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02292418A Expired - Lifetime EP1302621B1 (fr) | 2001-10-16 | 2002-10-02 | Trépan pour matériaux très durs |
Country Status (7)
Country | Link |
---|---|
US (1) | US6942046B2 (fr) |
EP (1) | EP1302621B1 (fr) |
AT (1) | ATE323821T1 (fr) |
DE (1) | DE60210722D1 (fr) |
FR (1) | FR2830898B1 (fr) |
HK (1) | HK1055775A1 (fr) |
SG (1) | SG107617A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106437530A (zh) * | 2016-09-26 | 2017-02-22 | 长江大学 | 一种用于锚杆预成孔施工的挤土式钻头 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2460069C (fr) * | 2001-09-20 | 2010-07-13 | Shell Canada Limited | Tete de forage a percussion |
US6761231B1 (en) | 2002-05-06 | 2004-07-13 | The Charles Machines Works, Inc. | Rotary driven drilling hammer |
CN108026756B (zh) * | 2015-09-30 | 2020-08-21 | 杰伦·莱尔·麦克米伦 | 冲击设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371498A (en) * | 1941-10-27 | 1945-03-13 | Sida S Martin | Automatically rotatable bit for cable well tools |
US2566913A (en) * | 1949-04-15 | 1951-09-04 | George R Watson | Cable drilling tool |
DE1813400A1 (de) * | 1968-12-07 | 1970-06-25 | Grossbohrloch U Spreng Unterne | Bohrkrone fuer Tieflochhaemmer |
US3837414A (en) * | 1973-08-01 | 1974-09-24 | K Swindle | Jar-type drilling tool |
US4705118A (en) * | 1984-03-16 | 1987-11-10 | Ennis Melvyn S J | Hammer for use in a bore hole and apparatus for use therewith |
US4919221A (en) * | 1989-04-06 | 1990-04-24 | Numa Tool Company | Impact drill bit assembly and replaceable parts thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788409A (en) * | 1972-05-08 | 1974-01-29 | Baker Oil Tools Inc | Percussion bits |
DE2817194C2 (de) * | 1977-05-03 | 1984-05-03 | Diamant Boart S.A., Bruxelles | Kernbohrgerät |
US4962822A (en) * | 1989-12-15 | 1990-10-16 | Numa Tool Company | Downhole drill bit and bit coupling |
US6315063B1 (en) * | 1999-11-02 | 2001-11-13 | Leo A. Martini | Reciprocating rotary drilling motor |
-
2001
- 2001-10-16 FR FR0113317A patent/FR2830898B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-02 EP EP02292418A patent/EP1302621B1/fr not_active Expired - Lifetime
- 2002-10-02 DE DE60210722T patent/DE60210722D1/de not_active Expired - Lifetime
- 2002-10-02 AT AT02292418T patent/ATE323821T1/de not_active IP Right Cessation
- 2002-10-14 SG SG200206252A patent/SG107617A1/en unknown
- 2002-10-15 US US10/271,907 patent/US6942046B2/en not_active Expired - Fee Related
-
2003
- 2003-10-03 HK HK03107144A patent/HK1055775A1/xx not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371498A (en) * | 1941-10-27 | 1945-03-13 | Sida S Martin | Automatically rotatable bit for cable well tools |
US2566913A (en) * | 1949-04-15 | 1951-09-04 | George R Watson | Cable drilling tool |
DE1813400A1 (de) * | 1968-12-07 | 1970-06-25 | Grossbohrloch U Spreng Unterne | Bohrkrone fuer Tieflochhaemmer |
US3837414A (en) * | 1973-08-01 | 1974-09-24 | K Swindle | Jar-type drilling tool |
US4705118A (en) * | 1984-03-16 | 1987-11-10 | Ennis Melvyn S J | Hammer for use in a bore hole and apparatus for use therewith |
US4919221A (en) * | 1989-04-06 | 1990-04-24 | Numa Tool Company | Impact drill bit assembly and replaceable parts thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106437530A (zh) * | 2016-09-26 | 2017-02-22 | 长江大学 | 一种用于锚杆预成孔施工的挤土式钻头 |
CN106437530B (zh) * | 2016-09-26 | 2019-09-03 | 长江大学 | 一种用于锚杆预成孔施工的挤土式钻头 |
Also Published As
Publication number | Publication date |
---|---|
FR2830898B1 (fr) | 2004-01-23 |
SG107617A1 (en) | 2004-12-29 |
FR2830898A1 (fr) | 2003-04-18 |
US6942046B2 (en) | 2005-09-13 |
HK1055775A1 (en) | 2004-01-21 |
US20030230434A1 (en) | 2003-12-18 |
ATE323821T1 (de) | 2006-05-15 |
DE60210722D1 (de) | 2006-05-24 |
EP1302621B1 (fr) | 2006-04-19 |
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