DE3049268A1 - Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81) - Google Patents
Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81)Info
- Publication number
- DE3049268A1 DE3049268A1 DE19803049268 DE3049268A DE3049268A1 DE 3049268 A1 DE3049268 A1 DE 3049268A1 DE 19803049268 DE19803049268 DE 19803049268 DE 3049268 A DE3049268 A DE 3049268A DE 3049268 A1 DE3049268 A1 DE 3049268A1
- Authority
- DE
- Germany
- Prior art keywords
- coolant
- line
- drill bit
- pressure
- cooling system
- 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- Withdrawn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
- 239000002826 coolant Substances 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 title claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 6
- 239000010432 diamond Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005406 washing Methods 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
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
-
- 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
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/042—Drills for trepanning with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/006—Devices for removing chips by sucking and blowing simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
"Einrichtung zum Kühlen von Kernbohrern""Device for cooling core drills"
Die Erfindung bezieht sich auf eine } h.richtung zum Kühlen von Kernbohrern mit einem zylindrischen, rohrförmigen Schaft, an dessen Inneres eine Kühlmittelleitung angeschlossen ist. The invention relates to a direction for cooling core drills with a cylindrical, tubular shaft, on the interior of which a coolant line connected.
Der Verschleiß von Kernbohrern, insbesondere solchen, die mit Diamanten besetzt sind, wird im Wesentlichen von zwei Faktoren bestimmt: 1. von der genügenden Kühlung des Diamantkornes an der Schleiffläche der Bohrkrone und 2. vom Wegspülen des Bohrkleins, welches bei ungeniigender SpUlung eine verstärkte AbnUtzung der Bohrkrone bewirkt. Bei den herkömmlichen Einrichtungen, die diesen beiden Faktoren gerecht werden sollen, wird das Kühlmittel, insbesondere Wasser, über einen abgedichteten Bohrkopf in das Innere des Schaftes gepreßt. The wear and tear of core drills, especially those with diamonds are occupied is essentially determined by two factors: 1. The sufficient number Cooling of the diamond grain on the grinding surface of the drill bit and 2. from washing away of the cuttings, which, if the flushing is inadequate, increases the wear and tear of the Drill bit causes. In conventional bodies, these two factors to meet, the coolant, in particular water, is sealed via a Drill head pressed into the inside of the shaft.
Bei im Wesentlichen senkrechten Bohrungen wird durch die Rotation des Bohrers das Kühlmittel zufolge der Zentrifugalkraft an die Innenflächen des Bohrers gebracht und fließt senkrecht zur Bohrkrone ab.In the case of essentially vertical bores, the rotation of the drill, the coolant due to the centrifugal force on the inner surfaces of the Drill brought and flows perpendicular to the drill bit.
Dabei wird mit dem Kühlmittel das Bohrklein an der Außenseite des Schaftes abgespült. Bei im Wesentlichen senkrecht zu bohrenden Löchern auf etwa waagrechten Flächen sind die bekannten Einrichtungen im Wesentlichen ausreichend. Beim Bohren von etwa waagrechten Löchern ist es jedoch insbesondere bei Bohrlöchern mit größerem Durchmesser oft nicht mehr möglich, genügend Kühlmittel an die Schneidflchg der Bohrer krone zu bringen, weil die dem Kühlmittel aufgebrachte Fliehkraft hiezu nicht mehr ausreicht. Die obere Hälfte der Bohrung ist bei größeren Bohrlöchern ohne Kühlmittel, wodurch sich ein wesentlich erhöhter Verschleiß des Bohrers ergibt.The cuttings on the outside of the Rinsed off the shaft. In the case of holes to be drilled essentially vertically to approximately The known devices are essentially sufficient for horizontal surfaces. When drilling approximately horizontal holes, however, this is particularly the case with boreholes Often no longer possible with a larger diameter, sufficient coolant to the cutting surface Bring the drill bit because of the centrifugal force applied to the coolant is no longer sufficient. The upper half of the hole is for larger holes without coolant, which results in significantly increased wear on the drill.
Die Erfindung hat es sich zum Ziel gesetzt, eine Einrichtung der eingangs genannten Art zu schaffen, mit der es möglich ist, bei jeder Lage der Bohrung genügend Kühlmittel an die Schneidfläche der Bohrkrone zu bringen und das Bohrklein mit dem Kühlmittel abzuspülen. Überdies soll ein unkontrolliertes Abfließen des mit dem Bohrklein verunreinigten Kühlmittels verhindert werden. Erreicht wird dieses Ziel dadurch, daß der Schaft von einer auf ihm axial verschiebbar angeordneten Ringleitung für das Kühlmittel umgeben ist. Durch diese Ringleitung wird der gesamte Umfang des Bohrers ausreichend mit Kühlmittel versorgt, unabhängig davon, in welcher Lage gebohrt wird. The invention has set itself the goal of a device of To create the type mentioned above, with which it is possible at any position of the hole Bring sufficient coolant to the cutting surface of the drill bit and the cuttings rinse with the coolant. In addition, an uncontrolled drainage of the coolant contaminated with the cuttings can be prevented. This is achieved The aim is that the shaft of a ring line arranged axially displaceably on it for the coolant is surrounded. This ring line covers the entire circumference of the drill is supplied with sufficient coolant, regardless of the position is drilled.
Um möglichst wenig Verlust am Kühlmittel zu erleiden, bzw. um ein kontrolliertes Zu- und Abfließen des Kühlmittels zu erreichen, ist es zweckmäßig, wenn die Ringleitung mit Dichtlippen einerseits zur Anlage an der zu bearbeitenden Fläche, anderseits zur Anlage am Schaft versehen ist. In order to suffer as little loss of coolant as possible, or to avoid a To achieve a controlled inflow and outflow of the coolant, it is advisable to when the ring main with sealing lips on the one hand to rest on the to be processed Surface, on the other hand, is provided to rest on the shaft.
Im Rahmen der Erfindung kann die Ringleitung an eine Druckleitung für das Kühlmittel angeschlossen sein. Zur Unterstützung des Kühlmittelflusses ist es dabei zweckmäßig, das Innere des Schaftes an eine Vakuumleitung anzuschließen. In the context of the invention, the ring line can be connected to a pressure line must be connected for the coolant. To support the coolant flow is It is useful to connect the inside of the shaft to a vacuum line.
Bei einer umgekehrt arbeitenden erfindungsgemäßen Einrichtung ist die Ringleitung an eine Vakuumleitung und das Innere des Schaftes in an sich bekannter Weise an eine Druckleitung für das Kühlmittel angeschlossen. In a device according to the invention that works in reverse the ring line to a vacuum line and the interior of the shaft in a known manner Way connected to a pressure line for the coolant.
Nachstehend ist die Erfindung an Hand zweier in den Zeichnungen dargestellter Ausführungsbeispiele näher beschrieben, wobei die Fig. 1 und 2 jeweils einen mit einer erfindungsgemäßen Einrichtung versehenen Kernbohrer im Schnitt darstellen. The invention is based on two shown in the drawings Embodiments described in more detail, FIGS. 1 and 2 each having one represent a core drill provided according to the invention in section.
Gemäß Fig. 1 ist an der Außenwand eines insbesondere mit Diamanten besetzten Kernbohrers 1 eine ringförmige Leitung 2 angeordnet, die mit Düsen 10 versehen ist. An der Leitung 2 sind Dichtlippen 3 und 4 angebrtacht, die sich an die zu bearbeitende Fläche 5 bzw. an den Bohrer 1 anpressen. Die Leitung 2 wird mit einer Druckwasserleitung verschraubt. Zufolge der Anordnung der Dichtlippen 3, 4 wird ein Abfließen des Kühlmittels an der Wand verhindert. According to FIG. 1, a particular one with diamonds is on the outer wall occupied core drill 1 an annular conduit 2 is arranged, which with nozzles 10 is provided. On the line 2 sealing lips 3 and 4 are attached, which are attached to Press the surface 5 to be machined or onto the drill 1. Line 2 will screwed to a pressure water line. As a result of the arrangement of the sealing lips 3, 4, the coolant is prevented from flowing off the wall.
Der Bohrer besitzt in seinem Schaft 6 eine Bohrung 7, welche in eine Vakuumkammer 8 mündet. Diese ist über einen Vakuumschlauch 9 mit einer Vakuumpumpe mit Wasserabscheider verbunden. The drill has in its shank 6 a bore 7 which in a Vacuum chamber 8 opens. This is via a vacuum hose 9 with a vacuum pump connected with water separator.
Als vorteilhaft hat sich erwiesen, wenn beim Bohren an senkrechten oder überhängenden Wänden das Vakuum größer ist, als der Wasserdruck in der ringförmigen Kühlmittelleitung. Die Dichtlippen 3 und 4 werden dann zur Bohrerwand und zur Wand des zu bohrenden Materials angesaugt, so daß eine bessere Abdichtung zwischen Wand und Bohrer erreicht wird. It has proven to be advantageous when drilling on vertical or overhanging walls the vacuum is greater than the water pressure in the annular Coolant line. The sealing lips 3 and 4 then become the drill wall and the wall of the material to be drilled sucked, so that a better seal between the wall and drill is achieved.
Beim Ausführungsbeispiel nach Fig. 2 ist an der Außenwand 12 des Bohrers 13 eine ringförmige Vakuumleitung 14 mit Dichtlippen 15 und 16 angeordnet. Eine Bohrung 17 des Bohrers 13 mündet in eine Druckkammer 18, in die mittels eines Druckschlauches 19 ein Kühlmittel (Wasser) von einer Druckwasserleitung gepreßt wird. Von der Ringleitung 14 wird mit einem Vakuumschlauch 20 das Kühlmittel über eine Vakuumpumpe mit Wasserabscheider abgesaugt. Zweckmäßig ist dabei das Vakuum höher als der Wasserdruck in der Druckkammer 18. In the embodiment of FIG. 2 is on the outer wall 12 of the Drill 13 an annular vacuum line 14 with sealing lips 15 and 16 is arranged. A bore 17 of the drill 13 opens into a pressure chamber 18, into which by means of a Pressure hose 19 a coolant (water) pressed from a pressurized water line will. The coolant is transferred from the ring line 14 with a vacuum hose 20 sucked off a vacuum pump with a water separator. The vacuum is useful here higher than the water pressure in the pressure chamber 18.
LeerseiteBlank page
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0775379A AT367681B (en) | 1979-12-07 | 1979-12-07 | DEVICE FOR COOLING CORE DRILLS |
| DE19803049268 DE3049268A1 (en) | 1979-12-07 | 1980-12-27 | Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81) |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0775379A AT367681B (en) | 1979-12-07 | 1979-12-07 | DEVICE FOR COOLING CORE DRILLS |
| DE19803049268 DE3049268A1 (en) | 1979-12-07 | 1980-12-27 | Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3049268A1 true DE3049268A1 (en) | 1982-07-29 |
Family
ID=25604096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803049268 Withdrawn DE3049268A1 (en) | 1979-12-07 | 1980-12-27 | Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81) |
Country Status (2)
| Country | Link |
|---|---|
| AT (1) | AT367681B (en) |
| DE (1) | DE3049268A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985003545A1 (en) * | 1984-02-06 | 1985-08-15 | Oesterman Bror Erik | Method for inner cleaning of a core bit with reversed fluid flushing and a core bit herefor |
| EP0218744A1 (en) * | 1985-10-15 | 1987-04-22 | Brockmann, Johannes | Device for making a cylindrical hole through a wall, in particular for masonry |
| US4662802A (en) * | 1984-05-17 | 1987-05-05 | Oesterman Bror Erik | Device for effecting a seal against an underlying surface |
| RU2163192C1 (en) * | 2000-09-19 | 2001-02-20 | Данилов Петр Алексеевич | Method of forming passages of small diameters, mainly in concrete or in stone and device for realization of this method |
| WO2003103888A1 (en) * | 2002-06-06 | 2003-12-18 | John Clark | Drilling attachment |
-
1979
- 1979-12-07 AT AT0775379A patent/AT367681B/en not_active IP Right Cessation
-
1980
- 1980-12-27 DE DE19803049268 patent/DE3049268A1/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985003545A1 (en) * | 1984-02-06 | 1985-08-15 | Oesterman Bror Erik | Method for inner cleaning of a core bit with reversed fluid flushing and a core bit herefor |
| US4662802A (en) * | 1984-05-17 | 1987-05-05 | Oesterman Bror Erik | Device for effecting a seal against an underlying surface |
| EP0218744A1 (en) * | 1985-10-15 | 1987-04-22 | Brockmann, Johannes | Device for making a cylindrical hole through a wall, in particular for masonry |
| RU2163192C1 (en) * | 2000-09-19 | 2001-02-20 | Данилов Петр Алексеевич | Method of forming passages of small diameters, mainly in concrete or in stone and device for realization of this method |
| WO2003103888A1 (en) * | 2002-06-06 | 2003-12-18 | John Clark | Drilling attachment |
| US7371034B2 (en) | 2002-06-06 | 2008-05-13 | John Clark | Drilling attachment |
Also Published As
| Publication number | Publication date |
|---|---|
| AT367681B (en) | 1982-07-26 |
| ATA775379A (en) | 1981-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69002268T4 (en) | Cooling unit with fluid-operated seal. | |
| DE2526425C3 (en) | Device for monitoring the end position of a work spindle | |
| DE3443610C2 (en) | ||
| DE3838303C2 (en) | ||
| DE2346729B2 (en) | Combined peeling and roller burnishing tool | |
| DE3102884C2 (en) | Chipping chisel with water jet | |
| EP0237790B1 (en) | Honing device | |
| DE3049268A1 (en) | Trepanning drill bit cooling system - has annular coolant pipe sliding on and enclosing tubular shank (AT 15.12.81) | |
| DE10317340A1 (en) | High-pressure coupling for media feed-through on quick-change systems | |
| DE3316283C2 (en) | Deep drilling machine | |
| DE69833680T2 (en) | DEVICE FOR THE MAIN SPINDLE OF A TOOL MACHINE AND MULTI SPINDLE HEAD FOR MACHINE TOOLS | |
| DE955470C (en) | Coolant supply device for drilling machines | |
| EP0105860B1 (en) | Rotation device, particularly for rotative tools | |
| DE60315854T2 (en) | TOOL WITH TARGETED STRENGTH AND METHOD FOR PRODUCING A NON-AXISYMMETRIC CHARACTERISTIC | |
| DE2111355C3 (en) | Pressure medium supply for a rotating chuck operated by a cylinder-piston assembly and the like | |
| EP0137959B1 (en) | Horizontal boring and milling machine | |
| EP0218744B1 (en) | Device for making a cylindrical hole through a wall, in particular for masonry | |
| DE2348388C3 (en) | Angle grinder for wet operation | |
| DE1192605B (en) | Flushing head, especially for drilling rigs working according to the air lift and jet suction method | |
| DE1652954C3 (en) | ||
| DE10312570B4 (en) | Rotary cutting tool | |
| DE2045515A1 (en) | Machine for lapping, polishing and the like | |
| DE1152979B (en) | Device for reworking boreholes | |
| DE19702197C1 (en) | Device for flushing gas and oil wells in underground mining equipment | |
| DE4412776C1 (en) | Supporting unit to grip and feed the drill string of a boring tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |