EP0439600B1 - Drill - Google Patents
Drill Download PDFInfo
- Publication number
- EP0439600B1 EP0439600B1 EP90913168A EP90913168A EP0439600B1 EP 0439600 B1 EP0439600 B1 EP 0439600B1 EP 90913168 A EP90913168 A EP 90913168A EP 90913168 A EP90913168 A EP 90913168A EP 0439600 B1 EP0439600 B1 EP 0439600B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drilling
- drive
- rods
- drill
- flushing head
- 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 - Lifetime
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/025—Surface drives for rotary drilling with a to-and-fro rotation of the tool
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B4/20—Drives for drilling, used in the borehole combined with surface drive
Definitions
- the main patent EP-A-0365612 relates to a drilling device, in particular for blast hole drilling, with a mount for the feed and the pulling of the drill rod formed from individual drill rods, a feed system, and a drive for the drill rod that is pressurized with pressure, which is located on a mount on the mount movable carriage, and a arranged at the front end of the drill pipe, hydraulically loaded in-hole hammer, the drive for the drill pipe transmits a reciprocating swivel movement, preferably with a swivel angle of 180 - 360 degrees, and the Boring bars are equipped with two longitudinal channels open to the outside for receiving hydraulic hoses for the supply and return of the pressure oil for the in-hole hammer, as well as a blow air line in these, and a hose threading and unthreading device is provided on the slide the drive for d he drill pipe is attached and with its drive element is directly or indirectly coupled.
- the drill according to the main patent are for torque transmission provide the boring bars with a profiling from the swivel drive onto the drill pipe, so that there is a positive connection and / or this takes place by frictional connection via a clamping device.
- the feed and the pull are carried out via the chain drive of the flushing head.
- a new boring bar from a boring bar magazine can be inserted.
- the drilled drill pipe located in the borehole is held in a conventional manner by a holding head. Now the slide is moved back to its upper starting position via a special drive.
- the hydraulic hoses are pressed into the longitudinal channels of the newly inserted boring bar via the threading elements of the hose threading and unthreading device, whereupon the newly inserted boring bar can be drilled out.
- the procedure is reversed, with the hydraulic hoses then being pressed out of the boring bar to be removed by the unthreading members when the carriage is moved.
- the boring bars are designed as hollow bars, the purge air is fed through them. However, if these are made of full material, the purge air for the in-hole hammer cannot pass through the inside of the Boring bars are blown so that they are equipped with existing blowing air lines.
- the invention has for its object to improve the drill according to the main patent in such a way that the torque transmission of the swivel drive to the drill string can be transmitted without a special profile of the drill rods forming the drill string and / or without additional clamping devices.
- the flushing head, the hose threading and unthreading device and the drive member of the swivel drive form a drive unit which is pivotably arranged on the carriage carriage and the flushing head in the drive unit is pivotable about an axis running transversely to the longitudinal axis of the boring bars is, the flushing head in its connection area for the boring bar ends has a recess which is adapted in shape to that of the insertion ends of the boring bars in such a way that the torque transmission for the boring bars takes place by positive locking.
- This configuration ensures that the flushing head not only executes the movement for the feed and the pulling of the drill pipe, as is conventional, but also transmits the pivoting movement of the swivel drive to the drill pipe by positive locking.
- the torque is transmitted through the conventional insertion ends of the boring bars, for example in a square or hexagonal shape, in cooperation with an appropriately designed recess in the lower region of the flushing head.
- the flushing head In the uppermost position of the drive unit, the flushing head is pivoted into its working position for connection to the upper end of the projecting boring bar, after drilling the boring bar, the flushing head is pivoted sideways away from the axis of the drill pipe, so that the drive unit can move back unhindered while simultaneously threading the Hydraulic hoses can be made in the newly protruding boring bar.
- the flushing head In the recess of the flushing head there is a transverse bore for receiving the retaining bolts at the insertion ends of the boring bars, into which they snap under spring action.
- the bore for receiving the retaining bolts extends outwards, so that the retaining bolts can be pressed back against the action of their spring from the outside and the flushing head can be released. In order to be able to do this as simply as possible, the outwardly extending bore can merge into a section with an enlarged diameter.
- the pivoting movement of the flushing head is advantageously carried out by means of a cylinder-piston unit that can be pressurized, which is included in the control of the entire work process of the drilling rig.
- the pressure medium-loaded drive 2 which is designed as a swivel motor with a gear 3, is fastened to the slide 1.
- the pinion 4 of the gear 3 meshes with a ring gear 5, which is located on the drive member 6 for the drill string consisting of the individual drill rods 7.
- the drive member 6 forms with the flushing head 8 and the hose threading and unthreading device 9 a drive unit which is pivotably arranged on the carriage 1 of the mount of the drilling device, specifically about the longitudinal axis of the boring bars 7, which simultaneously represents the pivot axis.
- the hose threading and unthreading device 9 has a threading element 12 and a threading element 13 for each hydraulic hose 10, 11.
- the flushing head 8 can be pivoted in the drive unit about an axis 15 running transversely to the longitudinal axis of the boring bars 7, specifically by means of a cylinder-piston unit 16 pressurized with pressure medium.
- the flushing head 8 has in its connection area for the boring bar ends 17 a recess 18 which is adapted in shape to that of the insertion ends 19 of the boring bars 7 in such a way that the torque transmission to the boring bars 7 takes place by positive locking.
- the insertion ends 19 can, for example, be designed to be square or hexagonal and correspondingly the recess 18 of the flushing head 8.
- the boring bars it is also possible for the boring bars to be provided at their ends with mutually adapted shaped pieces for the rotationally fixed connection of the boring bars to one another and for the flush connection of the longitudinal channels thereof .
- a bore 20 extending transversely to this for receiving the retaining bolts 21 at the insertion ends 19.
- the retaining bolts 21 are under the action of a spring and thus automatically engage the bore 20 a.
- the bore 20 extends outwards preferably over a section 22 with an enlarged diameter, so that a pushing back of the retaining bolts 21 of the insertion ends 19 of the drill rods 7 is possible for releasing the flushing head 8.
- the flushing head 8 In the position shown in the drawing, the flushing head 8 is placed with its recess 18 on the insertion end 19 of a boring bar 7 provided from a magazine (not shown further), the retaining bolt 21 of the insertion end 19 being engaged in the bore 20 of the flushing head 8.
- the flushing air is supplied to the flushing head 8 via the flushing agent hose 23.
- the drill pipe can now be drilled off, the feed being applied to the carriage 7 via the usual chain feed.
- the drill pipe is held in a manner known per se by a holding head.
- the retaining bolt 21 is loosened, the carriage 1 is moved upwards and, after the insertion end 19 has been released, is pivoted into the pivoted-out position shown in dash-dotted lines by actuating the cylinder-piston unit 16.
- the next boring bar 7 is placed in front and the boring bar end 17 of the drill rod is inserted into the boring bar end with the recess of the next above boring bar, the retaining bolt 21 engaging in a corresponding bore in the recess of the boring bar end, in the same way as in the bores 20 of the Flushing head 8.
- the flushing head 8 In the uppermost position of the drive unit, the flushing head 8 is pivoted back into its working position shown in the drawing and connected to the boring bar end 19, so that the next boring bar 7 protruding can be drilled out in the same way.
Abstract
Description
Gegenstand des Hauptpatents EP-A-0365612 ist ein Bohrgerät, insbesondere für das Sprenglochbohren, mit einer Lafette für den Vorschub sowie das Ziehen des aus einzelnen Bohrstangen gebildeten Bohrgestänges, einem Vorschubsystem, einem druckmittelbeaufschlagten Antrieb für das Bohrgestänge, welcher sich an einem auf der Lafette verfahrbaren Schlitten befindet, sowie einem am vorderen Ende des Bohrgestänges angeordneten, hydraulisch beaufschlagten Im-Loch-Hammer, wobei der Antrieb für das Bohrgestänge auf dieses eine hin- und hergehende Schwenkbewegung, vorzugsweise mit einem Schwenkwinkel von 180 - 360 Grad, überträgt, und die Bohrstangen mit zwei nach außen hin offenen Längskanälen für die Aufnahme von Hydraulikschläuchen für den Zulauf und den Rücklauf des Drucköls für den Im-Loch-Hammer sowie einer in diesen vorhandenen Blasluftleitung ausgerüstet sind, und eine Schlauchein- und ausfädelungseinrichtung vorgesehen ist, welche an dem Schlitten des Antriebes für das Bohrgestänge angebracht ist und mit deren Antriebsorgan mittelbar oder unmittelbargekuppelt ist.The main patent EP-A-0365612 relates to a drilling device, in particular for blast hole drilling, with a mount for the feed and the pulling of the drill rod formed from individual drill rods, a feed system, and a drive for the drill rod that is pressurized with pressure, which is located on a mount on the mount movable carriage, and a arranged at the front end of the drill pipe, hydraulically loaded in-hole hammer, the drive for the drill pipe transmits a reciprocating swivel movement, preferably with a swivel angle of 180 - 360 degrees, and the Boring bars are equipped with two longitudinal channels open to the outside for receiving hydraulic hoses for the supply and return of the pressure oil for the in-hole hammer, as well as a blow air line in these, and a hose threading and unthreading device is provided on the slide the drive for d he drill pipe is attached and with its drive element is directly or indirectly coupled.
Bei dem Bohrgerät nach dem Hauptpatent sind zur Drehmomentübertragung von dem Schwenkantrieb auf das Bohrgestänge die Bohrstangen mit einer Profilierung versehen, so daß sich ein Formschluß ergibt und/oder diese erfolgt durch Kraftschluß über eine Klemmeinrichtung. Der Vorschub sowie das Ziehen erfolgen hierbei über den Kettenantrieb des Spülkopfes. Sobald der Schlitten seine untere Position erreicht hat und der Spülkopf in seine obere Ausgangslage zurückgefahren ist, kann eine neue Bohrstange aus einem Bohrstangenmagazin eingesetzt werden. Das im Bohrloch befindliche abgebohrte Bohrgestänge wird in herkömmlicher Weise durch einen Haltekopf gehalten. Nunmehr wird der Schlitten über einen besonderen Antrieb in seine obere Ausgangslage zurückgefahren.The drill according to the main patent are for torque transmission provide the boring bars with a profiling from the swivel drive onto the drill pipe, so that there is a positive connection and / or this takes place by frictional connection via a clamping device. The feed and the pull are carried out via the chain drive of the flushing head. As soon as the slide has reached its lower position and the flushing head has returned to its upper starting position, a new boring bar from a boring bar magazine can be inserted. The drilled drill pipe located in the borehole is held in a conventional manner by a holding head. Now the slide is moved back to its upper starting position via a special drive.
Bei diesem Zurückfahren des Schlittens werden über die Einfädelungsorgane der Schlauchein- und -ausfädelungseinrichtung die Hydraulikschläuche in die Längskanäle der neu eingesetzten Bohrstange eingedrückt, woraufhin das Abbohren der neu eingesetzten Bohrstange erfolgen kann. Beim Ziehen des Gestänges wird in umgekehrter Weise verfahren, wobei dann jeweils aus der zu entnehmenden Bohrstange die Hydraulikschläuche durch die Ausfädelungsorgane beim Verfahren des Schlittens herausgedrückt werden. Bei einer Ausführung der Bohrstangen als Hohlstangen wird die Spülluft durch diese hindurch zugeführt. Sind diese jedoch aus vollem Material hergestellt, kann die Spülluft für den Im-Loch-Hammer nicht durch das Innere der Bohrstangen geblasen werden, so daß diese mit in diesen vorhandenen Blasluftleitungen ausgerüstet sind.During this retraction of the slide, the hydraulic hoses are pressed into the longitudinal channels of the newly inserted boring bar via the threading elements of the hose threading and unthreading device, whereupon the newly inserted boring bar can be drilled out. When pulling the linkage, the procedure is reversed, with the hydraulic hoses then being pressed out of the boring bar to be removed by the unthreading members when the carriage is moved. When the boring bars are designed as hollow bars, the purge air is fed through them. However, if these are made of full material, the purge air for the in-hole hammer cannot pass through the inside of the Boring bars are blown so that they are equipped with existing blowing air lines.
Der Erfindung liegt die Aufgabe zugrunde, das Bohrgerät nach dem Hauptpatent dahingehend zu verbessern, daß die Drehmomentübertragung des Schwenkantriebes auf das Bohrgestänge ohne eine besondere Profilierung der das Bohrgestänge bildenden Bohrstangen und/oder ohne zusätzliche Klemmvorrichtungen übertragen werden kann.The invention has for its object to improve the drill according to the main patent in such a way that the torque transmission of the swivel drive to the drill string can be transmitted without a special profile of the drill rods forming the drill string and / or without additional clamping devices.
Erfindungsgemäß wird dies dadurch erreicht, daß der Spülkopf, die Schlauchein- und -ausfädelungseinrichtung sowie das Antriebsglied des Schwenkantriebes eine Antriebseinheit bilden, welche an dem Schlitten der Lafette schwenkbar angeordnet ist und der Spülkopf in der Antriebseinheit um eine quer zur Längsachse der Bohrstangen verlaufende Achse schwenkbar ist, wobei der Spülkopf in seinem Anschlußbereich für die Bohrstangenenden eine Ausnehmung besitzt, welche in ihrer Formgebung der der Einsteckenden der Bohrstangen derart angepaßt ist, daß die Drehmomentübertragung für die Bohrstangen durch Formschluß erfolgt. Durch diese Ausgestaltung wird erreicht, daß der Spülkopf nicht nur - wie an sich üblich - die Bewegung für den Vorschub sowie das Ziehen des Bohrgestänges ausführt, sondern auch die Schwenkbewegung des Schwenkantriebes auf das Bohrgestänge durch Formschluß überträgt. Die Drehmomentübertragung erfolgt durch die herkömmlichen Einsteckenden der Bohrstangen, beispielsweise in vieroder sechseckiger Form, im Zusammenwirken mit einer entsprechend gestalteten Ausnehmung im unteren Bereich des Spülkopfes. In der obersten Position der Antriebseinheit wird der Spülkopf in seine Arbeitsposition zur Verbindung mit dem oberen Ende der vorstehenden Bohrstange geschwenkt, nach dem Abbohren der Bohrstange wird der Spülkopf aus der Achse des Bohrgestänges seitlich weggeschwenkt, so daß ein ungehindertes Zurückfahren der Antriebseinheit unter gleichzeitiger Einfädelung der Hydraulikschläuche in die neu vorstehende Bohrstange erfolgen kann.According to the invention this is achieved in that the flushing head, the hose threading and unthreading device and the drive member of the swivel drive form a drive unit which is pivotably arranged on the carriage carriage and the flushing head in the drive unit is pivotable about an axis running transversely to the longitudinal axis of the boring bars is, the flushing head in its connection area for the boring bar ends has a recess which is adapted in shape to that of the insertion ends of the boring bars in such a way that the torque transmission for the boring bars takes place by positive locking. This configuration ensures that the flushing head not only executes the movement for the feed and the pulling of the drill pipe, as is conventional, but also transmits the pivoting movement of the swivel drive to the drill pipe by positive locking. The torque is transmitted through the conventional insertion ends of the boring bars, for example in a square or hexagonal shape, in cooperation with an appropriately designed recess in the lower region of the flushing head. In the uppermost position of the drive unit, the flushing head is pivoted into its working position for connection to the upper end of the projecting boring bar, after drilling the boring bar, the flushing head is pivoted sideways away from the axis of the drill pipe, so that the drive unit can move back unhindered while simultaneously threading the Hydraulic hoses can be made in the newly protruding boring bar.
In der Ausnehmung des Spülkopfes ist eine quer zu dieser verlaufende Bohrung zur Aufnahme der Haltebolzen an den Einsteckenden der Bohrstangen vorgesehen, in welche diese unter Federwirkung einrasten. Um das Lösen der Haltebolzen zu erleichtern, erstreckt sich die Bohrung zur Aufnahme der Haltebolzen nach außen, so daß von außen her die Haltebolzen gegen die Wirkung ihrer Feder zurückgedrückt und der Spülkopf gelöst werden kann. Um dieses möglichst einfach durchführen zu können, kann die sich nach außen erstreckende Bohrung in einen Abschnitt mit vergrößertem Durchmesser übergehen.In the recess of the flushing head there is a transverse bore for receiving the retaining bolts at the insertion ends of the boring bars, into which they snap under spring action. In order to facilitate the loosening of the retaining bolts, the bore for receiving the retaining bolts extends outwards, so that the retaining bolts can be pressed back against the action of their spring from the outside and the flushing head can be released. In order to be able to do this as simply as possible, the outwardly extending bore can merge into a section with an enlarged diameter.
Die Schwenkbewegung des Spülkopfes erfolgt vorteilhaft mittels einer druckmittelbeaufschlagbaren Zylinder-Kolben-Einheit, welche steuerungsmäßig in den gesamten Arbeitsablauf des Bohrgerätes einbezogen ist.The pivoting movement of the flushing head is advantageously carried out by means of a cylinder-piston unit that can be pressurized, which is included in the control of the entire work process of the drilling rig.
Ein Ausführungsbeispiel der Erfindung ist an Hand der Zeichnung näher erläutert, und zwar zeigt diese eine teilweise geschnittene Ansicht des Schwenkantriebes mit Spülkopf und Schlitten für die Lafette des Bohrgerätes.An embodiment of the invention is explained in more detail with reference to the drawing, and this shows a partially sectioned view of the swivel drive with flushing head and slide for the carriage of the drill.
Auf die Darstellung des Bohrgerätes ist aus Übersichtlichkeitsgründen verzichtet worden, zumal es sich hierbei um eine herkömmliche Technik handelt.For the sake of clarity, the drill device has not been shown, especially since this is a conventional technique.
Mit 1 ist der Schlitten bezeichnet, welcher auf der nicht dargestellten Lafette des Bohrgerätes verfahrbar ist. An dem Schlitten 1 ist der druckmittelbeaufschlagte Antrieb 2 befestigt, welcher als Schwenkmotor mit Getriebe 3 ausgeführt ist. Das Zahnritzel 4 des Getriebes 3 kämmt mit einem Zahnkranz 5, welcher sich an dem Antriebsglied 6 für das aus den einzelnen Bohrstangen 7 bestehende Bohrgestänge befindet.1 with the carriage is designated, which is movable on the carriage of the drilling device, not shown. The pressure medium-loaded
Das Antriebsglied 6 bildet mit dem Spülkopf 8 sowie der Schlauchein- und -ausfädelungseinrichtung 9 eine Antriebseinheit, welche an dem Schlitten 1 der Lafette des Bohrgerätes schwenkbar angeordnet ist, und zwar um die Längsachse der Bohrstangen 7, welche gleichzeitig die Schwenkachse darstellt.The
Die Schlauchein- und -ausfädelungseinrichtung 9 weist für jeden Hydraulikschlauch 10, 11 ein Einfädelungsorgan 12 und ein Ausfädelungsorgan 13 auf.The hose threading and
Der Spülkopf 8 ist in der Antriebseinheit um eine quer zur Längsachse der Bohrstangen 7 verlaufende Achse 15 schwenkbar, und zwar mittels einer druckmittelbeaufschlagten Zylinder-Kolben-Einheit 16.The flushing head 8 can be pivoted in the drive unit about an
Der Spülkopf 8 besitzt in seinem Anschlußbereich für die Bohrstangenenden 17 eine Ausnehmung 18, welche in ihrer Formgebung der der Einsteckenden 19 der Bohrstangen 7 derart angepaßt ist, daß die Drehmomentübertragung auf die Bohrstangen 7 durch Formschluß erfolgt. Die Einsteckenden 19 können beispielsweise vier- oder sechseckig ausgeführt sein und entsprechend die Ausnehmung 18 des Spülkopfes 8. Es ist jedoch auch möglich, daß die Bohrstangen an ihren Enden miteinander angepaßten Formstücken zur drehfesten Verbindung der Bohrstangen miteinander sowie zur fluchtenden Verbindung der Längskanäle derselben versehen sind.The flushing head 8 has in its connection area for the boring bar ends 17 a
In der Ausnehmung 18 des Spülkopfes 8 ist eine quer zu dieser verlaufende Bohrung 20 zur Aufnahme der Haltebolzen 21 an den Einsteckenden 19 vorgesehen. Die Haltebolzen 21 stehen unter der Wirkung einer Feder und rasten somit selbsttätig in die Bohrung 20 ein. Die Bohrung 20 erstreckt sich nach aussen vorzugsweise über einen Abschnitt 22 mit vergrößertem Durchmesser, so daß ein Zurückdrücken der Haltebolzen 21 der Einsteckenden 19 der Bohrstangen 7 zum Lösen des Spülkopfes 8 möglich ist.In the
Die Wirkung der erfindungsgemäßen Vorrichtung ist wie folgt:The effect of the device according to the invention is as follows:
In der aus der Zeichnung ersichtlichen Lage ist der Spülkopf 8 mit seiner Ausnehmung 18 auf das Einsteckende 19 einer aus einem nicht weiter dargestellten Magazin vorgesetzten Bohrstange 7 aufgesetzt, wobei der Haltebolzen 21 des Einsteckendes 19 in die Bohrung 20 des Spülkopfes 8 eingerastet ist. Die Zufuhr der Spülluft zum Spülkopf 8 erfolgt über den Spülmittelschlauch 23. Nunmehr kann das Abbohren des Bohrgestänges erfolgen, wobei der Vorschub auf den Schlitten 7 über den üblichen Kettenvorschub aufgebracht wird.
Wenn das Abbohren der vorstehenden Bohrstange 7 erfolgt ist, wird das Bohrgestänge in an sich bekannter Weise von einem Haltekopf festgehalten. Nunmehr wird der Haltebolzen 21 gelöst, der Schlitten 1 aufwärts gefahren und nach Freigabe des Einsteckendes 19 durch Betätigen der Zylinder-Kolben-Einheit 16 in die aus der Zeichnung ersichtliche, strichpunktiert eingezeichnete Ausschwenklage verschwenkt.
Durch Einschwenken einer neuen Bohrstange aus einem nicht weiter dargestellten Magazin wird die nächste Bohrstange 7 vorgesetzt und das Bohrstangenende 17 des Bohrgestänges in das Bohrstangenende mit Ausnehmung der nächst vorstehenden Bohrstange eingefahren, wobei der Haltebolzen 21 in eine entsprechende Bohrung in der Ausnehmung des Bohrstangenendes einrastet, in gleicher Weise wie in die Bohrungen 20 des Spülkopfes 8. Die nunmehr mit dem Bohrgestänge verbundene Bohrstange 7 wird über einen Arretierhebel des Bohrstangenmagazins gehalten, so daß das Bohrstangenmagazin ausschwenken kann und die Antriebseinheit in ihre Ausgangsposition zurückgefahren werden kann, wobei die Hydraulikschläuche 10, 11 durch die Schlauchein- und -ausfädelungseinrichtung 9 "eingefädelt" werden. In der obersten Position der Antriebseinheit wird der Spülkopf 8 in seine aus der Zeichnung ersichtliche Arbeitsposition zurückgeschwenkt und mit dem Bohrstangenende 19 verbunden, so daß das Abbohren der nächst vorstehenden Bohrstange 7 in gleicher Weise erfolgen kann.In the position shown in the drawing, the flushing head 8 is placed with its
When the drilling of the above boring bar 7 has taken place, the drill pipe is held in a manner known per se by a holding head. Now the
By swiveling a new boring bar out of one Magazine shown further, the next boring bar 7 is placed in front and the
Das Ziehen des Bohrgestänges erfolgt in umgekehrter Weise, wobei dann jeweils aus der zu entnehmenden Bohrstange 7 die Hydraulikschläuche 10, 11 durch die Ausfädelungsorgane 13 beim Verfahren der Antriebseinheit herausgedrückt werden.The pulling of the drill pipe takes place in the reverse manner, in which case the hydraulic hoses 10, 11 are then pressed out of the drill rod 7 to be removed by the threading-out
Claims (6)
- Drilling apparatus, in particular for blasthole drilling, with a mount for advancing and retracting the drill string formed of individual drill rods, an advance system, a flushing head (8) which can travel on the mount, a drive (2), for the drill string, which is acted upon by pressure medium and which is located on a slide (1) which can travel on the mount, as well as with an in-hole hammer which is disposed at the front end of the drill string and is acted upon hydraulically, wherein the drive (2) for the drill string transmits to the latter a reciprocating pivot movement, preferably at a pivot angle of 180-360°, and the drilling rods (7) are provided with two longitudinal ducts which are open towards the exterior for accommodating hydraulic hoses (10, 11) for the delivery and return of the compressed oil for the in-hole hammer as well as with a blast air line disposed therein, and a hose threading and unthreading device (9) is provided which is mounted on the slide (1) of the mount and can be coupled directly or indirectly with the drive (2), characterised in that the flushing head (8), the hose threading and unthreading device (9), and the drive member (6) of the pivot drive (2) form a drive unit which is pivotably disposed on the slide (1) of the mount, and the flushing head (8) is pivotable in the drive unit about an axis (15) extending transversely to the longitudinal axis of the drilling rods (7) and, in its connection area for the drilling rod ends (19), has a recess (18) of which the shape is adapted to that of the insertion ends (19) of the drilling rods (7) in such a way that the torque is transmitted to the drilling rods as a result of a close fit.
- Drilling apparatus according to Claim 1, characterised in that there is provided in the recess (18) of the flushing head (8) a bore (20), which extends transversely to the recess, for accommodating the retaining bolts (21) at the insertion ends (19) of the drilling rods (7).
- Drilling apparatus according to Claim 1 or 2, characterised in that the bore (20) for accommodating the retaining bolts (21) of the insertion ends (19) extends outwardly.
- Drilling apparatus according to any one of the preceding claims, characterised in that the bore (20) for accommodating the retaining bolts (21) of the insertion ends (19) merges outwardly into a section (22) with an enlarged diameter.
- Drilling apparatus according to any one of the preceding claims, characterised in that the pivot movement of the flushing head (8) is brought about by means of a cylinder-piston unit (16) which is acted upon by pressurised medium.
- Drilling apparatus according to any one of the preceding claims, characterised in that the control device of the cylinder-piston unit (16) is integrated in the overall control device for the operating sequence of the drilling apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90913168T ATE95587T1 (en) | 1989-08-24 | 1990-08-17 | DRILL RIG. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19893927952 DE3927952A1 (en) | 1988-12-14 | 1989-08-24 | Drilling for blasting - uses cradle and washing nozzle together with carriage mounted drive and hydraulic hammer |
| DE3927952 | 1989-08-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0439600A1 EP0439600A1 (en) | 1991-08-07 |
| EP0439600B1 true EP0439600B1 (en) | 1993-10-06 |
Family
ID=6387776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90913168A Expired - Lifetime EP0439600B1 (en) | 1989-08-24 | 1990-08-17 | Drill |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5193626A (en) |
| EP (1) | EP0439600B1 (en) |
| JP (1) | JPH04501446A (en) |
| DD (1) | DD297277A5 (en) |
| DE (1) | DE59003012D1 (en) |
| FI (1) | FI90463C (en) |
| RU (1) | RU1836554C (en) |
| WO (1) | WO1991002880A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5488999A (en) * | 1994-04-19 | 1996-02-06 | Serrette; Billy J. | Drill bit for geological exploration |
| US5540295A (en) * | 1995-03-27 | 1996-07-30 | Serrette; Billy J. | Vibrator for drill stems |
| GB201521633D0 (en) | 2015-12-08 | 2016-01-20 | Saifa Technology Ltd | Cash drawer |
| CN115492535B (en) * | 2022-09-02 | 2023-10-03 | 中国矿业大学(北京) | Combined drill drop prevention matched equipment and method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2215928A (en) * | 1936-12-19 | 1940-09-24 | Franks Mfg Corp | Drilling apparatus |
| US2716393A (en) * | 1949-03-17 | 1955-08-30 | Chicago Pneumatic Tool Co | Chipping hammer tool retainer |
| US3007534A (en) * | 1958-07-16 | 1961-11-07 | Jersey Prod Res Co | Electric cable drum for rotary drilling |
| US3151687A (en) * | 1959-05-25 | 1964-10-06 | Nippon Sharyo Seizo Kk | Driving head with plural impact motors |
| US3766991A (en) * | 1971-04-02 | 1973-10-23 | Brown Oil Tools | Electric power swivel and system for use in rotary well drilling |
| US3800887A (en) * | 1972-02-07 | 1974-04-02 | Robbins Co | Drive head assembly for an earth drilling machine |
| FR2292850A1 (en) * | 1974-11-26 | 1976-06-25 | Airaudo Antonin | BORING OR SOUNDING MACHINE WITH MAST OR ARROW OF VARIABLE LENGTH |
| FR2469551A1 (en) * | 1979-11-12 | 1981-05-22 | Boniface Andre | Machine allowing drill rotation head to be pivoted - enables fitting of additional drilling tube without lifting train, used in mineral and geothermal investigations |
| US4702328A (en) * | 1985-11-22 | 1987-10-27 | Mcsweeney Lawrence H | Roof drilling system |
| US4834594A (en) * | 1987-04-06 | 1989-05-30 | Fansteel Inc. | Drill steel drive unit |
| DE3842081A1 (en) * | 1988-03-15 | 1989-09-28 | Hausherr & Soehne Rudolf | DRILLING DEVICE |
| DE8908769U1 (en) * | 1989-07-19 | 1989-09-14 | Reinhold, Klaus, 4540 Lengerich, De |
-
1990
- 1990-08-17 EP EP90913168A patent/EP0439600B1/en not_active Expired - Lifetime
- 1990-08-17 WO PCT/EP1990/001353 patent/WO1991002880A1/en active IP Right Grant
- 1990-08-17 US US07/681,497 patent/US5193626A/en not_active Expired - Fee Related
- 1990-08-17 JP JP2512137A patent/JPH04501446A/en active Pending
- 1990-08-17 DE DE90913168T patent/DE59003012D1/en not_active Expired - Fee Related
- 1990-08-21 DD DD90343547A patent/DD297277A5/en not_active IP Right Cessation
-
1991
- 1991-04-19 FI FI911896A patent/FI90463C/en not_active IP Right Cessation
- 1991-04-23 RU SU914895272A patent/RU1836554C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FI911896A0 (en) | 1991-04-19 |
| DD297277A5 (en) | 1992-01-02 |
| EP0439600A1 (en) | 1991-08-07 |
| RU1836554C (en) | 1993-08-23 |
| US5193626A (en) | 1993-03-16 |
| DE59003012D1 (en) | 1993-11-11 |
| JPH04501446A (en) | 1992-03-12 |
| WO1991002880A1 (en) | 1991-03-07 |
| FI90463C (en) | 1994-02-10 |
| FI90463B (en) | 1993-10-29 |
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