DE102006000081A1 - rock drill - Google Patents
rock drill Download PDFInfo
- Publication number
- DE102006000081A1 DE102006000081A1 DE102006000081A DE102006000081A DE102006000081A1 DE 102006000081 A1 DE102006000081 A1 DE 102006000081A1 DE 102006000081 A DE102006000081 A DE 102006000081A DE 102006000081 A DE102006000081 A DE 102006000081A DE 102006000081 A1 DE102006000081 A1 DE 102006000081A1
- Authority
- DE
- Germany
- Prior art keywords
- flushing channel
- diameter
- rock
- drilling
- head according
- 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.)
- Withdrawn
Links
- 239000011435 rock Substances 0.000 title claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 238000011010 flushing procedure Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 6
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 description 4
- 239000003599 detergent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/75—Stone, rock or concrete
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/62—Use of suction
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Ein hartstoffbestückter Gesteinsbohrkopf (1), welcher aus bis zu fünf Einzelteilen zusammengesetzt ist, mit einem Bohrdurchmesser (D) zwischen 25 mm und 60 mm sowie mit zumindest einem Spülkanal (2) mit einem Spülkanaldurchmesser (S) an einer Außenfläche (3), der zwischen 1/20 und einem 1/5 des Bohrdurchmessers (D) beträgt sowie der Spülkanal (2) von der Außenfläche (3) nach innen düsenförmig erweitert ist.A hard material-tipped rock drilling head (1), which is composed of up to five individual parts, with a drilling diameter (D) between 25 mm and 60 mm and with at least one flushing channel (2) with a flushing channel diameter (S) on an outer surface (3) is between 1/20 and 1/5 of the drilling diameter (D) and the flushing channel (2) is widened in a nozzle shape from the outer surface (3).
Description
Aufgabe der ErfindungObject of the invention
Die Erfindung bezeichnet einen hartstoffbestückten Gesteinsbohrkopf mit Spülkanälen, insbesondere für einen Sprenglochbohrer oder Injektionsbohranker.The Invention refers to a hard-tipped rock drill head with Flushing channels, in particular for one Blast hole drill or injection drill anchor.
Derartige als Massenware hergestellte Bohrköpfe, auf welche sich diese Erfindung begrenzt, weisen bei einem Bohrdurchmesser zwischen 25 mm und 60 mm einen geringen Komplexitätsgrad auf. So ist die Anzahl der Einzelteile, wie die Schneiden ausbildenden Hartstoffeinsätze, aus Herstellungsgründen auf einige wenige, maximal fünf beschränkt. Abhängig von der Art des zu bohrenden Untergrundes werden diese Gesteinsbohrköpfe im Nassbohrverfahren mit niedrigen (5 bis 30 bar) Wasserdrücken oder im Trockenbohrverfahren mit Bohrkleinabsaugung (Absaugdruck 0,3 bis 0,7 bar) durch die Spülkanälen betrieben, wodurch diese notwendig einen Spülkanalsdurchmesser zwischen 1/20 und einem 1/5 des Bohrdurchmessers aufweisen.such mass-produced drill heads, on which these Limited invention, have a drill diameter between 25 mm and 60 mm a low degree of complexity. That's the number of the individual parts, such as the cutting-forming hard material inserts manufacturing reasons to a few, a maximum of five limited. Dependent Depending on the type of substrate to be drilled, these rock drilling heads will be drilled by wet drilling with low (5 to 30 bar) water pressures or by dry drilling operated with drill cuttings extraction (suction pressure 0.3 to 0.7 bar) through the flushing channels, whereby this necessary a Spülkanalsdurchmesser between 1/20 and 1/5 of the drill diameter.
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Die Aufgabe besteht in der für die Massenproduktion geeigneten Realisierung eines hartstoffbestückten Gesteinsbohrkopfes mit einem Bohrdurchmesser zwischen 25 mm und 60 mm und sowohl zum Nass- als auch zum Trockenbohren geeigneten Spülkanälen.The Task is in the for the mass production suitable realization of a hard-tipped rock drill head with a bore diameter between 25 mm and 60 mm and both for Wet as well as dry drilling suitable flushing channels.
Die Aufgabe wird im Wesentlichen durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The The object is essentially achieved by the features of claim 1 solved. Advantageous developments emerge from the subclaims.
So weist ein hartstoffbestückter Gesteinsbohrkopf, welcher aus bis zu fünf Einzelteilen zusammengesetzt ist, einen Bohrdurchmesser zwischen 25 mm und 60 mm sowie zumindest einen Spülkanal mit einem (eingeschriebenen) Spülkanaldurchmesser an einer Aussenfläche zwischen 1/20 und einem 1/5 des Bohrdurchmessers auf, wobei der Spülkanal von der Aussenfläche nach Innen düsenförmig erweitert ist.So has a hard material tipped Rock drill head, which consists of up to five individual parts is, a drilling diameter between 25 mm and 60 mm and at least a flushing channel with a (registered) Spülkanaldurchmesser on an outside surface between 1/20 and 1/5 of the bore diameter, the irrigation channel from the outside surface expanded nozzle-shaped to the inside is.
Durch den sich von der Aussenfläche nach Innen düsenförmig (längs der Strömung konkav, konisch oder konvex sowie im Strömungsquerschnitt rotationssymmetrisch, ganzzählig symmetrisch oder unsymmetrisch) nach Innen stetig erweiternden Spülkanal kann sich beim saugenden Trockenbohren von Aussen in dem Spülkanal eingedrungenes Bohrklein praktisch nicht in diesem festsetzen, da sich der Querschnitt des Spülkanals nach innen stetig aufweitet. Beim Nassbohren mit Spülmittel unter niedrigem Druck von Innen her kommt es zu einer höheren Strömungsgeschwindigkeit im verengten äusseren Bereich des Spülkanals, wobei allfällig dort angesammeltes Bohrklein den dynamischen Druck der Spülmittelströmung spürt und mitgerissen wird.By extending from the outer surface nozzle-shaped inside (along the flow concave, conical or convex and rotationally symmetric in the flow cross section, ganzzählig symmetrical or asymmetrical) to the inside continuously expanding flushing channel can in the sucking dry drilling from the outside in the flushing channel penetrated Cuttings practically do not stick in this as the cross section of the flushing channel expanding steadily inward. When wet drilling with detergent Under low pressure from the inside it comes to a higher flow velocity in the narrowed outer Area of the flushing channel, where applicable There accumulated cuttings feel the dynamic pressure of the detergent flow and entrained becomes.
Vorteilhaft ist der Spülkanal direkt an der Aussenfläche mit einem Konuswinkel zwischen 3° und 30° ausgebildet, wodurch die Querschnittserweiterung im Inneren hinreichend stark ausgebildet ist.Advantageous is the flushing channel directly on the outside surface with a cone angle between 3 ° and 30 °, whereby the cross-sectional widening in the interior sufficiently strong is trained.
Vorteilhaft sind zwei Spülkanäle vorhanden, die weiter vorteilhaft symmetrisch zur Bohrachse verteilt angeordnet sind, wodurch bei einer Verstopfung eines Spülkanals zumindest ein weiterer redundant verfügbar steht.Advantageous are two flushing channels available, the further advantageously arranged distributed symmetrically to the drilling axis are, whereby at a clogging of a flushing channel at least one more redundantly available stands.
Vorteilhaft besteht der Gesteinsbohrkopf aus einem Grundkörper aus Stahlguss, wodurch der sich im Innern erweiternde Spülkanal vorteilhaft beim Giessen herstellbar ist.Advantageous the rock drill head consists of a body made of cast steel, whereby the flushing channel which widens in the interior is advantageous during casting can be produced.
Vorteilhaft besteht der Gesteinsbohrkopf nur aus dem Grundkörper und genau einem, sich diametral über den Bohrdurchmesser ersteckenden Hartstoffeinsatz, der stoffschlüssig in einer Nut befestigt ist, wodurch der Gesteinsbohrkopf in wenigen Prozessschritten sehr ökonomisch herstellbar ist.Advantageous the rock drill head consists only of the main body and exactly one, itself diametrically over the Bohrdurchmesser ersteckenden hard material insert, the cohesively in a groove is attached, whereby the rock drill head in a few Process steps very economical can be produced.
Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit:The Invention is related an advantageous embodiment explained in more detail with:
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Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006000081A DE102006000081A1 (en) | 2006-02-20 | 2006-02-20 | rock drill |
US11/703,004 US20070193784A1 (en) | 2006-02-20 | 2007-02-06 | Rock drilling head |
NZ553100A NZ553100A (en) | 2006-02-20 | 2007-02-08 | Rock drilling head with rinsing channels suitable for both wet and dry drilling |
AU2007200580A AU2007200580A1 (en) | 2006-02-20 | 2007-02-09 | Rock drilling head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006000081A DE102006000081A1 (en) | 2006-02-20 | 2006-02-20 | rock drill |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006000081A1 true DE102006000081A1 (en) | 2007-08-23 |
Family
ID=38288551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006000081A Withdrawn DE102006000081A1 (en) | 2006-02-20 | 2006-02-20 | rock drill |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070193784A1 (en) |
AU (1) | AU2007200580A1 (en) |
DE (1) | DE102006000081A1 (en) |
NZ (1) | NZ553100A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180328118A1 (en) * | 2015-10-29 | 2018-11-15 | Robert L Morse | Dual Purpose Radial Drilling Tool String for Cutting Casing and Rock in a Single Trip |
AT15689U1 (en) * | 2016-09-19 | 2018-04-15 | Ceratizit Luxembourg S A R L | Drilling head and drilling tool |
EP3421162A1 (en) * | 2017-06-27 | 2019-01-02 | HILTI Aktiengesellschaft | Drill for chiselling rock |
EP3421163A1 (en) * | 2017-06-27 | 2019-01-02 | HILTI Aktiengesellschaft | Drill for chiselling rock |
EP3421205A1 (en) * | 2017-06-27 | 2019-01-02 | HILTI Aktiengesellschaft | Drill for chiselling rock |
EP4239159A1 (en) * | 2022-03-04 | 2023-09-06 | Sandvik Mining and Construction Tools AB | Central flushing channel comprising id marker |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2522045A (en) * | 1948-05-21 | 1950-09-12 | Silas A Knowles | Bit for rock drilling |
US2628821A (en) * | 1950-10-07 | 1953-02-17 | Kennametal Inc | Percussion drill bit body |
US3131779A (en) * | 1962-02-01 | 1964-05-05 | Jersey Prod Res Co | Erosion resistant nozzle assembly and method for forming |
PL119181B1 (en) * | 1976-08-31 | 1981-12-31 | Akad Gorniczo Hutnicza | Drill-bit for drilling bore-holes in rocks |
US4190125A (en) * | 1977-11-09 | 1980-02-26 | Fansteel Inc. | Drill bit and steel combination for improved fluid flow |
US4301877A (en) * | 1980-03-10 | 1981-11-24 | Hughes Tool Company | Clad mud nozzle |
US4330044A (en) * | 1981-01-02 | 1982-05-18 | Orr . . . Screw Machine Products, Inc. | Drill bit |
US4540056A (en) * | 1984-05-03 | 1985-09-10 | Inco Limited | Cutter assembly |
US4819748A (en) * | 1987-02-20 | 1989-04-11 | Truscott Aaron S | Roof drill bit |
US5150636A (en) * | 1991-06-28 | 1992-09-29 | Loudon Enterprises, Inc. | Rock drill bit and method of making same |
US5429199A (en) * | 1992-08-26 | 1995-07-04 | Kennametal Inc. | Cutting bit and cutting insert |
US5732784A (en) * | 1996-07-25 | 1998-03-31 | Nelson; Jack R. | Cutting means for drag drill bits |
-
2006
- 2006-02-20 DE DE102006000081A patent/DE102006000081A1/en not_active Withdrawn
-
2007
- 2007-02-06 US US11/703,004 patent/US20070193784A1/en not_active Abandoned
- 2007-02-08 NZ NZ553100A patent/NZ553100A/en not_active IP Right Cessation
- 2007-02-09 AU AU2007200580A patent/AU2007200580A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20070193784A1 (en) | 2007-08-23 |
NZ553100A (en) | 2008-05-30 |
AU2007200580A1 (en) | 2007-09-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: HILTI AKTIENGESELLSCHAFT, SCHAAN, LI |
|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130221 |