DE10225061A1 - Rock drill has liquid flushed pot-shaped drilling head having volume variable chamber with hydrodynamical narrow opening, axially moved with predetermined limits relative to drill rod - Google Patents
Rock drill has liquid flushed pot-shaped drilling head having volume variable chamber with hydrodynamical narrow opening, axially moved with predetermined limits relative to drill rod Download PDFInfo
- Publication number
- DE10225061A1 DE10225061A1 DE2002125061 DE10225061A DE10225061A1 DE 10225061 A1 DE10225061 A1 DE 10225061A1 DE 2002125061 DE2002125061 DE 2002125061 DE 10225061 A DE10225061 A DE 10225061A DE 10225061 A1 DE10225061 A1 DE 10225061A1
- Authority
- DE
- Germany
- Prior art keywords
- drill
- boring bar
- rock drill
- drill head
- narrow opening
- 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.)
- Ceased
Links
- 239000011435 rock Substances 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 title claims description 8
- 238000005553 drilling Methods 0.000 title abstract description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002238 attenuated 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
- 210000003746 feather Anatomy 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000010959 steel Substances 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
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Description
Die Erfindung bezeichnet einen mit Flüssigkeit gespülten Gesteinsbohrer mit einem relativ zur Bohrstange begrenzt axial beweglichen Bohrkopf, vorzugsweise zum Bohren von Sprenglöchern im Bergbau.The invention designates one with liquid flushed Rock drill with an axially movable relative to the boring bar limited Drilling head, preferably for drilling blast holes in mining.
Nach der
Die Aufgabe der Erfindung besteht in der Realisierung eines auch bei Leerschlägen ermündungsarmen Gesteinsbohrers mit relativ zur Bohrstange begrenzt axial beweglichen Bohrkopf.The object of the invention is in the realization of a rock drill with little or no need for emptying with axially movable drill head limited relative to the boring bar.
Die Aufgabe wird im wesentlichen durch die Merkmale der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The task essentially becomes by the characteristics of the independent Expectations solved. Advantageous further developments result from the subclaims.
Im Wesentlichen weist ein Gesteinsbohrer mit einem relativ zu einer Bohrstange begrenzt axial beweglichen, mit Flüssigkeit gespülten, topfförmigen Bohrkopf einen Bohrkopfinnenmantel auf, wobei die Bohrstange einen, dem Bohrkopfinnenmantel zugeordneten, Kolben zur Volumenveränderung eines Füllraumes aufweist, welcher über zumindest eine strömungsdynamisch enge Öffnung mit Flüssigkeit füllbar ist.Basically, a rock drill has a axially movable relative to a boring bar, with liquid flushed, pot-shaped drill head a drill head inner jacket, the drill rod one, the drill head inner jacket assigned piston for changing the volume of a filling space has which over at least one fluid dynamically narrow opening can be filled with liquid.
Bei Leerschlägen des Bohrkopfes wird eine mit grossen Schwingungsamplituden freie Bewegung durch die dazu notwendig durch die strömungsdynamisch enge Öffnung zum bzw. aus dem volumenveränderbaren Füllraum gepresste, im wesentlichen inkompressible Flüssigkeit durch den Strömungswiderstand gedämpft. Im Arbeitspunkt bei Kontakt des Bohrkopfes mit dem abzutragenden Gestein hingegen wird eine kleine Schwingungsamplitude durch die Elastizität der Flüssigkeit im Füllraum aufgenommen und somit kaum gedämpft.If the drill head is empty, one is added large vibration amplitudes free movement through the necessary through the flow dynamic narrow opening to or from the volume changeable filling space pressed, essentially incompressible liquid due to the flow resistance attenuated. In the working point when the drill head comes into contact with the one to be removed Rock, on the other hand, has a small oscillation amplitude elasticity the liquid in the filling room recorded and thus hardly damped.
Vorteilhaft ist zumindest eine strömungsdynamisch enge Öffnung des Füllraums als ein strömungsdynamisch enger Spalt ausgebildet, wodurch zwischen der Bohrstange und dem Bohrkopf auf Dichtmittel verzichtet werden kann.At least one is dynamic in terms of flow narrow opening of the filling space as a fluid dynamic narrow gap formed, which between the boring bar and the Drill head can be dispensed with sealant.
Vorteilhaft weist der Bohrkopf einen lösbar mit desem verbundenen, antriebsseitigen Axialanschlagmittel für die Bohrstange auf, welcher den Füllraum antriebsseitig abschliesst, wodurch eine Montage/Demontage des Bohrkopfes möglich ist.The drill head advantageously has one solvable with its connected, drive-side axial stop means for the boring bar on which the fill space closes on the drive side, whereby assembly / disassembly of the drill head possible is.
Vorteilhaft ist das antriebsseitige Axialanschlagmittel eine geteilte Mutter, welche im radial verjüngten Bereich des Bohrstanges hälftig zusammensetzbar ist, wodurch eine einfache Montage möglich ist.This is advantageous on the drive side Axial stop means a split nut, which is in the radially tapered area half of the boring bar can be assembled, making simple assembly possible.
Vorteilhaft weist der Bohrkopf und der Bohrstange einander formschlüssig passend zugeordnete Drehmitnahmemittel wie eine Polygonmitnahme auf, wodurch eine Drehübertragung von der Bohrstange zum Bohrkopf möglich ist.Advantageously, the drill head and the boring bar form-fitting each other suitably assigned rotary driving means like a polygon driving on, causing a rotation transfer from the boring bar to the boring head.
Vorteilhaft bildet das antriebsseitige Axialanschlagmittel einen Teil der Drehmitnahmemittel aus, bspw. ein Innenpolygon oder bogenförmige Passfedern, welche ein Drehmoment vor Bohrstange auf den Bohrkopf bei axialer Beweglichkeit übertragen, wodurch diese als auswechselbare Verschleissteile ausführbar sind.This is advantageous on the drive side Axial stop means from a part of the rotary driving means, for example. an inner polygon or arcuate Feather keys which have a torque in front of the boring bar on the boring head transmitted with axial mobility, whereby these can be implemented as replaceable wearing parts.
Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit einer Darstellung eines Gesteinsbohrers.The invention relates to a advantageous embodiment explained in more detail with a representation of a rock drill.
Nach der Darstellung weist ein in
der oberen Bildhälfte
im Arbeitspunkt, in der unteren Bildhälfte im Leerschlag dargestellter,
flüssigkeitsgespülter Gesteinsbohrer
Claims (6)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002125061 DE10225061A1 (en) | 2002-06-06 | 2002-06-06 | Rock drill has liquid flushed pot-shaped drilling head having volume variable chamber with hydrodynamical narrow opening, axially moved with predetermined limits relative to drill rod |
SE0301499A SE0301499L (en) | 2002-06-06 | 2003-05-22 | Flushed rock drill |
AU2003204341A AU2003204341A1 (en) | 2002-06-06 | 2003-05-23 | Flushed rock drill |
CA 2430513 CA2430513A1 (en) | 2002-06-06 | 2003-05-30 | Flushed rock drill |
BR0301666-8A BR0301666A (en) | 2002-06-06 | 2003-06-03 | Rinsed rock drill |
PL03360500A PL360500A1 (en) | 2002-06-06 | 2003-06-04 | Stone drill with fluid flushing |
ZA200304410A ZA200304410B (en) | 2002-06-06 | 2003-06-05 | Flushed rock drill. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002125061 DE10225061A1 (en) | 2002-06-06 | 2002-06-06 | Rock drill has liquid flushed pot-shaped drilling head having volume variable chamber with hydrodynamical narrow opening, axially moved with predetermined limits relative to drill rod |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10225061A1 true DE10225061A1 (en) | 2004-01-08 |
Family
ID=7714625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002125061 Ceased DE10225061A1 (en) | 2002-06-06 | 2002-06-06 | Rock drill has liquid flushed pot-shaped drilling head having volume variable chamber with hydrodynamical narrow opening, axially moved with predetermined limits relative to drill rod |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU2003204341A1 (en) |
BR (1) | BR0301666A (en) |
CA (1) | CA2430513A1 (en) |
DE (1) | DE10225061A1 (en) |
PL (1) | PL360500A1 (en) |
SE (1) | SE0301499L (en) |
ZA (1) | ZA200304410B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114562196B (en) * | 2022-01-19 | 2022-12-09 | 张家口宣化华泰矿冶机械有限公司 | Piston buffer mechanism and rock drill |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE134369C (en) * | ||||
DE2033694B2 (en) * | 1970-01-19 | 1973-08-09 | Institut Gornowo DeIa Sibirskowo Otdelemja Akademn Nauk SSSR, Nowo sibirsk (Sowjetunion) | DEVICE FOR MAKING HOLES IN THE SOIL BY SOIL COMPACTION |
US6021855A (en) * | 1995-08-31 | 2000-02-08 | Sandvik Ab | Method, drilling tool and rock drill bit for transferring impact energy from a top hammer unit |
-
2002
- 2002-06-06 DE DE2002125061 patent/DE10225061A1/en not_active Ceased
-
2003
- 2003-05-22 SE SE0301499A patent/SE0301499L/en not_active Application Discontinuation
- 2003-05-23 AU AU2003204341A patent/AU2003204341A1/en not_active Abandoned
- 2003-05-30 CA CA 2430513 patent/CA2430513A1/en not_active Abandoned
- 2003-06-03 BR BR0301666-8A patent/BR0301666A/en not_active Application Discontinuation
- 2003-06-04 PL PL03360500A patent/PL360500A1/en not_active IP Right Cessation
- 2003-06-05 ZA ZA200304410A patent/ZA200304410B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE134369C (en) * | ||||
DE2033694B2 (en) * | 1970-01-19 | 1973-08-09 | Institut Gornowo DeIa Sibirskowo Otdelemja Akademn Nauk SSSR, Nowo sibirsk (Sowjetunion) | DEVICE FOR MAKING HOLES IN THE SOIL BY SOIL COMPACTION |
US6021855A (en) * | 1995-08-31 | 2000-02-08 | Sandvik Ab | Method, drilling tool and rock drill bit for transferring impact energy from a top hammer unit |
Also Published As
Publication number | Publication date |
---|---|
BR0301666A (en) | 2004-08-24 |
SE0301499D0 (en) | 2003-05-22 |
PL360500A1 (en) | 2003-12-15 |
AU2003204341A1 (en) | 2004-01-08 |
SE0301499L (en) | 2003-12-07 |
CA2430513A1 (en) | 2003-12-06 |
ZA200304410B (en) | 2004-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |