DE337729C - Rock hammer drill with water flush - Google Patents
Rock hammer drill with water flushInfo
- Publication number
- DE337729C DE337729C DENDAT337729D DE337729DD DE337729C DE 337729 C DE337729 C DE 337729C DE NDAT337729 D DENDAT337729 D DE NDAT337729D DE 337729D D DE337729D D DE 337729DD DE 337729 C DE337729 C DE 337729C
- Authority
- DE
- Germany
- Prior art keywords
- water
- anvil
- hammer drill
- water flush
- groove
- 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.)
- Expired
Links
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
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)
Description
Bei GesteinbohiMmrnern, welche mit Wasserspülung zum Auswaschen des Bohrloches arbeiten, zeigt sich der Nachteil, daß das naturgemäß unter einem gewissen Überdruck zugeführte Wasser in das Innere des Bohrhammers tritt, so daß Beschädigungen durch Rostbildung unvermeidbar sind.For rock drillers, which are flushed with water to wash out the borehole work shows the disadvantage that this naturally takes place under a certain excess pressure supplied water enters the interior of the hammer drill, so that damage caused by rust formation is inevitable.
Der Erfindung gemäß soll dieser Nachteil dadurch vermieden werden, daß auf beiden ίο Seiten der im Amboß liegenden, den Wasseranschluß vermittelnden Nut Druckluftringe angeordnet sind, die in ständiger Verbindung mit dem Treibmittel stehen und aas denen Druckluft zur Wassernut übertritt, sobald eine Undichtheit in der Gleitführurg des Ambosses eintritt. Da die Druckluft einen erheblich größeren Überdruck als das Wasser hat und da sie infolge ihrer Expansionsfähigkeit und ihrer molekularen Beweglichkeit den Öffnungsweg schneller als das Wasser durchdringen wird, wird das Wasser ständig zurückgedrängt, so daß es gegen das Innere des Bohrhammers nicht vordringen kann.According to the invention, this disadvantage is to be avoided in that on both ίο Sides of the groove in the anvil, providing the water connection, compressed air rings are arranged, which are in constant communication with the propellant and aas which compressed air passes to the water groove as soon as there is a leak in the sliding guide of the anvil occurs. Since the compressed air has a significantly greater overpressure than that Water has and there it is due to its ability to expand and its molecular mobility the opening path faster than the water will penetrate, the water is constantly pushed back, so that it is against the Inside of the hammer drill can not penetrate.
In der Zeichnung ist die Erfindung an einem Ausführungsbeispiel dargestellt.In the drawing, the invention is shown using an exemplary embodiment.
In dem Bohrhammerzylinder α ist ein Hammerkolben geführt, der nicht zur Darstellung gebracht ist. Dieser Kolben schlägt wie üblich auf den Amboß b,_ der den Schlag auf den in die Vierkantbuchse c eingesteckten, ebenfalls nicht dargestellten Bohrer überträgt. Der Amboß besitzt eine Nut d, welche mittels der Kanäle e und f mit dem Raum g in Verbindung steht und in welche der Kanal h stets einmündet, gleichgültig, welche Stellung der Amboß hat. Durch die Kanäle h, e und f wird der Wasserzufluß vom Wasseranschlußraum i ζήτα Hohlbohrer in üblicher Weise übermittelt.A hammer piston, which is not shown, is guided in the hammer drill cylinder α. As usual, this piston strikes the anvil b, which transmits the strike to the drill, also not shown, which is inserted into the square socket c. The anvil has a groove d which communicates with the space g by means of the channels e and f and into which the channel h always opens, irrespective of the position of the anvil. The water inflow from the water connection space i ζήτα hollow drill is transmitted in the usual way through the channels h, e and f.
Der den Amboß führende Teil k des Hammers besitzt zwei Nuten Z und lx, welche so angeordnet sind, daß sie die Wassernut d, gleichgültig, welche Stellung der Amboß hat, zwischen sich haben. Die Nuten I und I1 stehen durch den Kanal m mit dem Steuerraum η des Bohrhammers in ständiger Verbindung, so daß sie stets mit Druckluft gespeist sind. Tritt eine Undichtheit in der Gleitführung des Ambosses ein, so bläst etwas Druckluft gegen die Wassernut d ab, weil die Druckluft stets den Weg des geringsten Widerstandes sucht. The part k of the hammer leading the anvil has two grooves Z and l x , which are arranged so that they have the water groove d, regardless of the position of the anvil, between them. The grooves I and I 1 are in constant communication through the channel m with the control chamber η of the hammer drill, so that they are always fed with compressed air. If there is a leak in the sliding guide of the anvil, some compressed air blows off against the water groove d because the compressed air always seeks the path of least resistance.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE337729T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE337729C true DE337729C (en) | 1921-06-08 |
Family
ID=6221787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT337729D Expired DE337729C (en) | Rock hammer drill with water flush |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE337729C (en) |
-
0
- DE DENDAT337729D patent/DE337729C/en not_active Expired
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