EP1257723A1 - Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern - Google Patents
Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchernInfo
- Publication number
- EP1257723A1 EP1257723A1 EP01905482A EP01905482A EP1257723A1 EP 1257723 A1 EP1257723 A1 EP 1257723A1 EP 01905482 A EP01905482 A EP 01905482A EP 01905482 A EP01905482 A EP 01905482A EP 1257723 A1 EP1257723 A1 EP 1257723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- drilling
- drill
- cladding tube
- pipe
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 238000009527 percussion Methods 0.000 title claims abstract description 16
- 239000012809 cooling fluid Substances 0.000 claims abstract description 12
- 238000005253 cladding Methods 0.000 claims description 59
- 238000011010 flushing procedure Methods 0.000 claims description 27
- 239000012530 fluid Substances 0.000 claims description 14
- 238000009412 basement excavation Methods 0.000 claims description 10
- 238000005065 mining Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 36
- 239000011796 hollow space material Substances 0.000 abstract description 5
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
-
- 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
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
Definitions
- the present invention relates to a device for drilling, in particular percussion or rotary percussion drilling, of boreholes, comprising a drill bit with a drilling or excavation surface, a drill pipe for introducing a torsional and / or percussion stress and for introducing a Flushing or cooling fluids in the drill bit and a cladding tube, which defines a cavity between the drill pipe and the interior of the cladding pipe and is supported on the drill pipe or can be connected to the drill bit.
- Embodiments of such drilling devices are known in which, in a modification of the embodiment mentioned at the outset, no cladding tube or jacket tube is used, so that the removed material can be easily removed in a space around the drill pipe, since the drill pipe is usually smaller Has external dimensions as the drill bit defining or forming the drill hole.
- the dismantled material or the cuttings can be removed outside the cladding tube if the latter has a correspondingly reduced outer diameter compared to the drill bit, only relatively small free spaces arise, so that only relatively small pieces, dismantled material can be removed in this area.
- cladding tubes are usually used in devices of the type mentioned at the beginning, the external dimensions of which differ only slightly from the external dimensions of the drill bit, since the cladding tube is intended to provide at least partial support or provisional lining of the borehole, in particular in the case of brittle rock, is found in such devices , in which a comparatively large passage space is defined between the drill pipe and the interior of the cladding tube, removal of the removed material or cuttings takes place through this free space or cavity or annular space between the drill pipe and the interior of the cladding tube, in this connection
- AT-B 390 303 EP-B 0 670 950 or WO 98/20229.
- Cooling fluid which are located on the foremost section or on the extraction surface of the drill bit, usually at least one further passage opening either also be provided on the extraction surface of the drill bit or in a lateral portion thereof, in order to introduce the removed material or cuttings to be removed into the to allow clearance or cavity defined by the drill pipe and the interior of the cladding tube and, subsequently, to provide removal of the mined material through this cavity.
- the present invention now aims to provide, starting from a device of the type mentioned at the outset, a device for drilling, in particular percussion or rotary impact drilling, of boreholes, with which a known removal of excavated material or cuttings by a through the drill pipe and the interior of the cladding tube defined cavity or annulus is easier to carry out and with which in particular also larger dimensions, dismantled material can be easily introduced into or removed from this cavity or annulus.
- the device according to the invention for drilling, in particular percussion or rotary percussion drilling of boreholes is essentially characterized in that, in a drilling position, the cladding tube is arranged at a distance from the back of the drill bit facing away from the mining area and that the drill bit in a flushing position for the cavity between the cladding tube and the drill pipe can be brought into contact with its back against the front end of the cladding tube facing the drill bit or can be connected to the front end of the cladding tube.
- the cladding tube in a drilling position, is arranged at a distance from the drill bit, a free space is provided behind the drill bit, seen from the surface of the drill bit, which has a correspondingly large passage opening for introducing the mined material or drill cuttings into releases the cavity or annular space between the drill pipe and the cladding tube, so that comparatively coarse material that is matched to the dimensions of this cladding tube can be easily introduced into the cavity and transported away by the latter.
- the invention further provides that in such a flushing position the back of the drill bit abuts the front end of the drill bit facing the drill bit Cladding tube can be brought or is connectable to the front end of the cladding tube, so that by introducing the A targeted and defined flushing of this cavity or annulus can also be achieved directly in the cooling or rinsing fluids in this annulus or cavity.
- the cladding tube has a free space between at its front end facing the drill bit defines the drill pipe and its interior for an at least partial overlap of the end of the drill bit facing away from the excavation surface, so that in such a position further penetration of excavated material into this connection area between the drill bit and the pipe is reliably avoided and thus no blockages for further use of the drill bit are to be feared.
- Material to avoid laying the comparatively large passage cross-section of the inlet or cavity defined between the drill pipe and the interior of the cladding tube is provided according to a further preferred embodiment that on the outer circumference of the drill rod and / or the cladding tube a sleeve element to limit the free passage cross section is provided at the front end of the cladding tube.
- Such a sleeve element can be adapted to any restrictions or constrictions of the passage cross section to be provided in the interior of the cladding tube, which can occur, for example, in the area of connecting pieces between the individual parts of the drill pipe and / or the cladding tube, so that it is ensured in each case that even with comparative greater Blocking or wedging of larger, dismantled pieces of material in the interior of the cladding tube is reliably avoided in the opening between the drill pipe and the cladding tube.
- the device according to the invention for dispensing the flushing or cooling fluid requires only a comparatively small number of through-openings on the surface of the drill bit, whereby for a simple flushing of the cladding tube between the drill pipe and the cladding tube, according to another
- the drill bit each has at least one passage opening for dispensing the flushing fluid in the area of the excavation area and one passage opening which opens into the area of the back of the drill bit.
- Such an additional passage opening in the area of the rear side of the drill bit, in the flushing position in which the drill bit is in contact with the front end of the cladding tube, is a targeted and safe introduction of the flushing fluid into the interior of the cavity - Achieved, whereby the desired cleaning or rinsing effect can be obtained reliably and with a comparatively small amount of fluid.
- a closure element is provided in the interior of the drill bit, which in the drilling position the at least one opening opening on the excavation surface and in the rinsing position the at least one opening to the rear Passage opening for dispensing the flushing fluid releases, as this corresponds to a further preferred embodiment of the device according to the invention.
- the closure element is formed by a sleeve which is guided in the interior of the drill bit and surrounds a feed line for the flushing fluid which runs essentially centrally in the drill bit and which is counteracted by a spring force pin or bolt element projecting from the area to be excavated can be displaced in the drilling position in the interior of the drill bit in the longitudinal direction thereof.
- a sleeve-shaped closure element can be designed to be correspondingly robust and of small construction, so that reliable operation is ensured over long periods of time even under the harsh operating conditions in a borehole.
- the pin or bolt element protruding from the excavation or drilling surface enables automatic blocking and unblocking of the desired passage opening or passage openings in the area of the drilling surface or in the area of the back in the rinsing position, since at retraction of the drill bit in contact with the cladding tube to take the rinsing position, the surface of the drill bit comes out of contact with the dismantled end face of the borehole and thus, against the spring force, an automatic displacement of the sleeve-shaped closure element to release only the passage opening or passage openings on the back of the drill bit is achievable.
- the flushing fluid is formed by compressed air or a liquid, in particular water, under pressure.
- a particularly simple coupling of a drill bit with a cladding tube surrounding the drill pipe can moreover be achieved in that the drill bit is divided into a central inner part and an outer part, in particular detachably coupled thereto, surrounding the inner part in an annular manner, as is a further preferred embodiment of the device according to the invention corresponds.
- FIG. 1 shows a schematic, partial section through a device according to the invention in the drilling position; and FIG. 2 likewise shows a partial, schematic section through the device according to the invention in the rinsing position in a representation similar to FIG. 1.
- a device for drilling, in particular percussion or rotary impact drilling, of a borehole schematically designated by 2 the device 1 comprising a drill bit generally designated 3
- a drill pipe 4 and a cladding tube surrounding the drill pipe 5 comprises, wherein a cavity or annulus 6 is defined between the drill pipe 4 and the interior of the cladding tube 5.
- the annular space or hollow space 6 defined between the outer circumference of the drill pipe 4 and the inner diameter or the inside of the cladding tube 5 removes broken-down, lumpy material or cuttings 7.
- FIG. 1 shown drilling position is shown that in the drilling position the front end 8 of the cladding tube 5 facing the drill bit 3 is at a distance from the rear of the drill bit 3, so that there is a large clearance for the guided alongside the drill bit 3, built material for insertion into the cavity 6 defined between the drill pipe 4 and the cladding tube 5 is available. It can be seen from FIG. 1 that comparatively large material 7 can thus be introduced into this annular space or cavity 6.
- connection area 9 in the area of the drill pipe 4, a connection area with 9 is indicated, in which it can be seen that this connection area 9, for example of individual sections of the drill pipe, has an enlarged outer diameter compared to the rest of the drill pipe 4, wherein in these areas an additional support of the cladding tube 5, which is usually of comparatively small thickness, is indicated by 10.
- a socket element is indicated schematically in FIG.
- a flushing or cooling fluid introduced through the interior of the drill pipe 4 in a known manner into the area of the drill bit 3 via passage openings designated at 12 and 13 on the drilling or extraction surface 14 of the drill bit 3 applied, which on the one hand rinsing and cooling the Mining area 14 takes place and, on the other hand, according to arrows 15, by returning the flushing or cooling fluid that is usually introduced under pressure, which can be formed by compressed air or, for example, water under pressure, in addition to the drill bit 3, an action or entrainment of degraded material 7 into the Cavity 6 takes place, so that a directed and supported by the flushing fluid discharge of the mined material or cuttings 7 through the cavity 6.
- the drill bit 7 can be withdrawn in a simple manner into the rinsing position shown in FIG. 2 in the cladding tube 5 or in contact with the latter are so that the front 8 of the cladding tube facing the drill bit 3 comes into contact with the back of the drill bit or a rear part 16 of the drill bit 3 is overlapped by the front end 8 of the cladding tube 5.
- a corresponding free space is provided in the area of the front end 8 of the cladding tube 4.
- Drill pipe 4 and the interior of the cladding tube 5 takes place.
- the free fluid passage to the passage openings 12 and 13 is blocked by a sleeve-shaped closure element 19 which extends in the longitudinal direction 20 of the drilling device 1. is displaceable against the force of a spring 21, so that in the flushing position shown in FIG. 2, the flushing or cooling fluid flows directly from an essentially central feed bore in the drill pipe 4 into at least one passage opening 17 facing the rear of the drill bit 3 entry.
- the sleeve-shaped closure element 19 is further coupled to a pin or bolt element 22 which protrudes beyond the excavation surface 14 in the flushing position shown in FIG. 2, while in the drilling position shown in FIG.
- the drill bit 3 is essentially subdivided into a central middle part 24 and an annular outer part 25 surrounding it, removal tools or elements formed by pin-like hard material inserts, for example, each being indicated by 26 are.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01905482T ATE282763T1 (de) | 2000-02-24 | 2001-02-21 | Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern |
SI200130232T SI1257723T1 (en) | 2000-02-24 | 2001-02-21 | Device for drilling, especially percussion or rotary percussion drilling, holes |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2892000 | 2000-02-24 | ||
AT2892000 | 2000-02-24 | ||
PCT/AT2001/000044 WO2001063085A1 (de) | 2000-02-24 | 2001-02-21 | Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1257723A1 true EP1257723A1 (de) | 2002-11-20 |
EP1257723B1 EP1257723B1 (de) | 2004-11-17 |
Family
ID=3486573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01905482A Expired - Lifetime EP1257723B1 (de) | 2000-02-24 | 2001-02-21 | Vorrichtung zum böhren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern |
Country Status (15)
Country | Link |
---|---|
US (1) | US6722454B2 (de) |
EP (1) | EP1257723B1 (de) |
JP (1) | JP2003525365A (de) |
KR (1) | KR100609936B1 (de) |
AT (2) | ATE282763T1 (de) |
AU (1) | AU3348101A (de) |
CZ (1) | CZ300268B6 (de) |
DE (1) | DE50104538D1 (de) |
ES (1) | ES2230272T3 (de) |
HR (1) | HRPK20020690B3 (de) |
PL (1) | PL196595B1 (de) |
SI (1) | SI1257723T1 (de) |
SK (1) | SK286787B6 (de) |
TW (1) | TW528832B (de) |
WO (1) | WO2001063085A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104989282A (zh) * | 2015-08-17 | 2015-10-21 | 罗金泉 | 一种喷射钻头 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50207438D1 (de) * | 2001-04-26 | 2006-08-17 | Alwag Tunnelausbau Gmbh | Verfahren und vorrichtung zum bohren eines loches und zum festlegen einer verankerung in einem bohrloch |
ATE442510T1 (de) * | 2003-03-13 | 2009-09-15 | Tesco Corp | Verfahren und vorrichtung zum bohren eines bohrlochs mit einem bohrloch-liner |
AT500691B1 (de) * | 2003-10-08 | 2008-07-15 | Alwag Tunnelausbau Gmbh | Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial |
JP5602141B2 (ja) * | 2008-09-17 | 2014-10-08 | ジェイエフケイ エクイップメント リミテッド | 削孔装置および削孔装置の製造方法 |
FI126596B (fi) | 2014-01-20 | 2017-02-28 | Lehti Group Oy | Teräkruunu |
CN107060648A (zh) * | 2017-05-17 | 2017-08-18 | 福建岩土工程勘察研究院 | 软土地基激振打井装置及其施工方法 |
CN113027340B (zh) * | 2021-04-15 | 2022-03-04 | 山东大学 | 一种适用于滨海岩溶区的钻孔设备及工艺 |
CN118241975B (zh) * | 2024-05-29 | 2024-08-02 | 枣庄矿业(集团)有限责任公司蒋庄煤矿 | 一种矿井开采岩石钻进破碎设备 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2746721A (en) * | 1951-10-01 | 1956-05-22 | Exxon Research Engineering Co | Apparatus for drilling |
US3382934A (en) * | 1966-03-03 | 1968-05-14 | Ingersoll Rand Co | Downhole drill for submarine drilling |
DE8509145U1 (de) | 1985-03-27 | 1985-05-15 | Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen | Bohrvorrichtung |
DE3902868C1 (de) * | 1989-02-01 | 1990-06-07 | Eastman Christensen Co., Salt Lake City, Utah, Us | |
DE4006320C1 (en) * | 1990-03-01 | 1991-10-02 | Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim, De | Straight line tunnel borer - has guide tube to which casing is connected with load-out conveyor |
FI95618C (fi) | 1992-12-03 | 1998-09-03 | Jorma Jaervelae | Porauslaitteisto |
DE4432710C1 (de) * | 1994-09-14 | 1996-04-11 | Klemm Bohrtech | Zielbohreinrichtung zum horizontalen Richtbohren |
US5839519A (en) | 1996-11-08 | 1998-11-24 | Sandvik Ab | Methods and apparatus for attaching a casing to a drill bit in overburden drilling equipment |
US6106200A (en) * | 1996-11-12 | 2000-08-22 | Techmo Entwicklungs-Und Vertriebs Gmbh | Process and device for simultaneously drilling and lining a hole |
ID21554A (id) | 1996-11-12 | 1999-06-24 | Techmo Entw & Vertriebs Gmbh | Proses dan alat untuk mengebor dan sekaligus melapis suatu lubang |
-
2001
- 2001-02-21 AT AT01905482T patent/ATE282763T1/de active
- 2001-02-21 ES ES01905482T patent/ES2230272T3/es not_active Expired - Lifetime
- 2001-02-21 PL PL356816A patent/PL196595B1/pl unknown
- 2001-02-21 JP JP2001561881A patent/JP2003525365A/ja not_active Withdrawn
- 2001-02-21 EP EP01905482A patent/EP1257723B1/de not_active Expired - Lifetime
- 2001-02-21 SI SI200130232T patent/SI1257723T1/xx unknown
- 2001-02-21 DE DE50104538T patent/DE50104538D1/de not_active Expired - Lifetime
- 2001-02-21 KR KR1020027011093A patent/KR100609936B1/ko active IP Right Grant
- 2001-02-21 SK SK1111-2002A patent/SK286787B6/sk not_active IP Right Cessation
- 2001-02-21 WO PCT/AT2001/000044 patent/WO2001063085A1/de active IP Right Grant
- 2001-02-21 CZ CZ20022584A patent/CZ300268B6/cs not_active IP Right Cessation
- 2001-02-21 AU AU33481/01A patent/AU3348101A/en not_active Abandoned
- 2001-05-24 TW TW090104243A patent/TW528832B/zh not_active IP Right Cessation
- 2001-12-10 AT AT0809401U patent/AT5717U1/de not_active IP Right Cessation
-
2002
- 2002-08-22 HR HR20020690A patent/HRPK20020690B3/xx not_active IP Right Cessation
- 2002-08-23 US US10/226,139 patent/US6722454B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0163085A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104989282A (zh) * | 2015-08-17 | 2015-10-21 | 罗金泉 | 一种喷射钻头 |
Also Published As
Publication number | Publication date |
---|---|
AU3348101A (en) | 2001-09-03 |
WO2001063085A1 (de) | 2001-08-30 |
DE50104538D1 (de) | 2004-12-23 |
SK11112002A3 (sk) | 2003-01-09 |
CZ20022584A3 (cs) | 2003-02-12 |
EP1257723B1 (de) | 2004-11-17 |
HRPK20020690B3 (en) | 2005-06-30 |
KR100609936B1 (ko) | 2006-08-04 |
SK286787B6 (sk) | 2009-05-07 |
US20030079915A1 (en) | 2003-05-01 |
AT5717U1 (de) | 2002-10-25 |
ES2230272T3 (es) | 2005-05-01 |
ATE282763T1 (de) | 2004-12-15 |
US6722454B2 (en) | 2004-04-20 |
SI1257723T1 (en) | 2005-02-28 |
PL196595B1 (pl) | 2008-01-31 |
KR20020086575A (ko) | 2002-11-18 |
JP2003525365A (ja) | 2003-08-26 |
HRP20020690A2 (en) | 2003-12-31 |
PL356816A1 (en) | 2004-07-12 |
TW528832B (en) | 2003-04-21 |
CZ300268B6 (cs) | 2009-04-08 |
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