EP0545922B1 - Drilling machine table - Google Patents

Drilling machine table Download PDF

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Publication number
EP0545922B1
EP0545922B1 EP90914712A EP90914712A EP0545922B1 EP 0545922 B1 EP0545922 B1 EP 0545922B1 EP 90914712 A EP90914712 A EP 90914712A EP 90914712 A EP90914712 A EP 90914712A EP 0545922 B1 EP0545922 B1 EP 0545922B1
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EP
European Patent Office
Prior art keywords
drive sleeve
gear
machine table
drilling machine
housing
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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EP90914712A
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German (de)
French (fr)
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EP0545922A1 (en
Inventor
Magnus Mauch
Achim Kehrberger
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Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
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Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
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Priority to AT90914712T priority Critical patent/ATE110135T1/en
Publication of EP0545922A1 publication Critical patent/EP0545922A1/en
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Publication of EP0545922B1 publication Critical patent/EP0545922B1/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/021With a rotary table, i.e. a fixed rotary drive for a relatively advancing tool

Definitions

  • the invention relates to a drilling table for a mobile drilling device according to the preamble of claim 1.
  • a mobile drilling device according to the preamble of claim 1.
  • Such a device is disclosed in US-A-3973468.
  • Such drilling tables are used in known mobile drilling rigs and are used, for example, to drill holes in pile foundations.
  • the present invention is intended to develop a drilling table according to the preamble of claim 1 in such a way that it can also be used to drill holes in the immediate vicinity of a building wall.
  • the development of the invention according to claim 4 is advantageous in terms of the simplest possible retrofitting of existing drilling tables.
  • the drive movement for the drive sleeve lying at the edge of the drilling table is derived from the rotary movement of the reduction gearwheel without any intervention into the interior of the existing classic drilling table; only a few simple attachments are used.
  • a drilling table is obtained in which the housing projects in one direction only slightly beyond the drilling axis, so that boreholes can be produced in the immediate vicinity of a building wall, in total Particularly compact dimensions of the housing in the direction perpendicular to the drilling axis (corresponds to the direction of travel of the chassis in normal use).
  • 10 designates a drilling table, which can be moved in the vertical direction on a leader 12 indicated by dashed lines, e.g. using a winch or hydraulic cylinder, not shown.
  • the drilling table 10 has a main housing lower part 14 and a main housing upper part 16 and a split additional housing part 18, which is placed on the end faces of the main housing parts on the right in FIG. 1.
  • the housing parts 14 to 18 are shown in a manner not shown, e.g. detachably connected by screws.
  • I-shaped cross section Guide rail 20 On the side surface of the main housing lower part 14 lying in FIG. 1 there is an I-shaped cross section Guide rail 20 attached. Similarly, a second guide rail is attached to the rear side surface of the lower housing part 14. The guide rails 20 cooperate with the side surfaces of the leader 12 and thus form the guide for the drilling table 10.
  • a hydraulic drive motor 22 is attached to the top of the upper housing part 16. Whose shaft 24 carries a pinion 26. Bearings 28, 30 serve to support the shaft 24 in the drilling table housing.
  • the pinion 26 works on a coaster gear 32 with a large diameter compared to it, with integrally formed shaft ends 34.
  • Bearings 36 38 serve to mount the coaster gear 32 in the drill table housing.
  • the reduction gear 32 has a central, square cross-section passage 40 for receiving a corresponding square drive rod for a drilling tool. Openings 42, 44 are provided above and below the passage 40 in the main housing lower part 14 and in the main housing upper part 16.
  • a drive sleeve 50 is mounted via bearings 46, 48. This has a central opening 52 with the same square cross section as the passage 40.
  • a toothed ring 54 which meshes with the reduction gear 32, is formed on the drive sleeve 50.
  • the ring gear 54 has a small diameter compared to the diameter of the reduction gear 32, so that the axis of the drive sleeve 50 is close to the edge of the drilling table 10 located on the right in FIG.
  • a square drive rod 56 is shown in dashed lines, the opening in the axial sliding play 52 enforced.
  • a drill 60 is attached via a coupling 58.
  • the drill 60 can be screwed into the ground immediately in front of a building wall, without the drilling table housing abutting the housing wall.
  • the drilling table 10 shown in FIG. 1 can also work like a conventional drilling table: all that is required is to insert a drive rod 56 into the passage 40 of the reduction gear 32.
  • the construction shown in FIG. 1 also has the advantage that drill drive movements at different speeds are provided in a mechanically very simple manner.
  • FIG. 2 shows a modified drilling table in which the tap near the edge rotates at the same speed and in the same direction of rotation as the tap of the conventional drilling table.
  • the drive sleeve 50 carries at its upper end, which is led out via the additional housing part 18, a sprocket 66. This is driven by a chain 64, which is only indicated schematically by dashed lines and which runs via a driving sprocket 62. The latter sits at the upper end of a drive part, designated overall by 68.
  • This has a four-sided coupling section 70, which fits in a form-fitting manner in the square passage 40 of the coaster gear 32, and a cylindrical collar 72, with which the drive part 68 sits on the top of the coaster gear 32.
  • the drive part 68 is captively connected to the reduction gear 32 by a washer 74 engaging on the underside of the main lower housing part 14 and a split pin 76.
  • a sheet metal cover 78 surrounds the chain drive, which connects the reduction gear 32 and the drive sleeve 50 for the synchronous rotary movement.
  • the modified drilling table shown in FIG. 3 is characterized by particularly small dimensions in the horizontal direction. This is made possible by placing the reduction gear 32 in an adjacent position to the guide rails 20 vertical plane.
  • components that have already been explained functionally above are again provided with the same reference numerals. These components are not described again in detail below.
  • the shaft stub 34 that runs to the right from the reduction gear 32 in FIG. 3 carries a bevel gear 80 at its right-hand end, and this meshes with the correspondingly conical toothed ring 54 of the drive sleeve 50.
  • the exemplary embodiment according to FIG. 3 already offers a tap near the edge for the drill drive movement. It is characterized by a particularly compact structure with only a few mechanical parts and is therefore preferred for the construction of new drilling tables, while the exemplary embodiments according to FIGS. 1 and 2 are preferably used when retrofitting existing drilling tables.
  • the drive motor 22 can also be placed on the upper side of the main housing upper part 16, so that the shaft 24 rotates again around a vertical axis.
  • the pinion 26 is then designed as a bevel pinion, the outer toothing of the reduction gear 32 is correspondingly tapered. This makes it possible to shorten the shaft end 34 carrying the bevel gear 80, as a result of which the axis of the drive sleeve 50 can be placed even closer to the leader 12.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

A drilling machine table (10) has a turning site for the drill driving shaft arranged next to the edge of the table and shaped as a driving socket (50) rotatably mounted in an add-on housing (18) laid on the main housing (14, 16). The driving socket (50) has a toothed ring (54) which cooperates with the usual stepping-down toothed wheel (32) of the drilling machine table. The stepping down toothed wheel (32) and the driving socket (50) are provided with central openings (40, 52) having identical polygonal cross-sections.

Description

Die Erfindung betrifft einen Bohrtisch für ein fahrbares Bohrgerät gemäß dem Oberbegriff des Anspruches 1. Ein solches Gerät wird in der US-A-3973468 offenbart.The invention relates to a drilling table for a mobile drilling device according to the preamble of claim 1. Such a device is disclosed in US-A-3973468.

Derartige Bohrtische finden bei bekannten fahrbaren Bohrgeräten Verwendung und dienen beispielsweise zum Bohren von Löchern bei Pfahl-Fundamentgründung.Such drilling tables are used in known mobile drilling rigs and are used, for example, to drill holes in pile foundations.

Zuweilen wäre es wünschenswert, ein Bohrloch auch in unmittelbarer Nachbarschaft eines schon existierenden Gebäudes zu erzeugen. Dies ist mit den bekannten Bohrtischen nicht möglich, da das Untersetzerzahnrad großen Durchmesser aufweist, so daß dann, wenn der Bohrtisch bis neben eine Gebäudewand gestellt wird, die Bohrachse größeren Abstand von dieser Wand aufweist.Sometimes it would be desirable to create a borehole in the immediate vicinity of an existing building. This is not possible with the known drilling tables, since the coaster gear has a large diameter, so that when the drilling table is placed next to a building wall, the drilling axis is at a greater distance from this wall.

Durch die vorliegende Erfindung soll ein Bohrtisch gemäß dem Oberbegriff des Anspruches 1 so weitergebildet werden, daß mit ihm auch Bohrlöcher in unmittelbarer Nachbarschaft einer Gebäudewand gebohrt werden können.The present invention is intended to develop a drilling table according to the preamble of claim 1 in such a way that it can also be used to drill holes in the immediate vicinity of a building wall.

Diese Aufgäbe ist erfindungsgemäß gelöst durch einen Bohrtisch gemäß Anspruch 1.This task is solved according to the invention by a drilling table according to claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind in Unteransprüchen angegeben.Advantageous developments of the invention are specified in the subclaims.

Die Weiterbildung der Erfindung gemäß Anspruch 2 ist im Hinblick auf ein einfaches und genaues Heranbewegen des Bohrwerkzeuges zu einer in unmittelbarer Nachbarschaft einer Gebäudewand liegenden Bohrstelle unter Verwendung eines den Mäkler tragenden Baggers von Vorteil.The development of the invention according to claim 2 is advantageous with regard to a simple and precise movement of the drilling tool to a drilling site lying in the immediate vicinity of a building wall using an excavator carrying the leader.

Die Weiterbildung der Erfindung gemäß Anspruch 3 ermöglicht es, schon im Einsatz befindliche Bohrtische zusätzlich mit einer bei einem der Bohrtischränder liegenden Antriebshülse zu versehen oder herkömmliche Bohrtische und erfindungsgemäße Bohrtische unter weitgehender Verwendung gleicher Standardbauteile herzustellen.The development of the invention according to claim 3 makes it possible to additionally provide drilling tables already in use with a drive sleeve lying at one of the drilling table edges, or to produce conventional drilling tables and drilling tables according to the invention using largely the same standard components.

Die Weiterbildung der Erfindung gemäß Anspruch 4 ist im Hinblick auf eine möglichst einfache Nachrüstung schon vorhandener Bohrtische von Vorteil. Die Ableitung der Antriebsbewegung für die beim Rand des Bohrtisches liegende Antriebshülse von der Drehbewegung des Untersetzerzahnrades erfolgt ohne jeglichen Eingriff ins Innere des vorhandenen klassischen Bohrtisches; es finden nur einige einfache Anbauteile Verwendung.The development of the invention according to claim 4 is advantageous in terms of the simplest possible retrofitting of existing drilling tables. The drive movement for the drive sleeve lying at the edge of the drilling table is derived from the rotary movement of the reduction gearwheel without any intervention into the interior of the existing classic drilling table; only a few simple attachments are used.

Die Weiterbildung der Erfindung gemäß Anspruch 5 ermöglicht bei kompakten Abmessungen der Kraftübertragungseinrichtung zwischen Untersetzerzahnrad und Ahtriebshülse eine 1:1-Übersetzung, d.h. eine umlaufende Antriebshülse mit gleicher Drehzahl wie das Untersetzerzahnrad. Damit hat man vergleichbare Antriebsverhältnisse für beide Zapfstellen des Bohrtisches.The development of the invention according to claim 5 enables a 1: 1 ratio, i.e. compact ratio of the force transmission device between the reduction gear and drive sleeve. a rotating drive sleeve with the same speed as the reduction gear. This gives you comparable drive ratios for both tapping points on the drilling table.

Auch die Weiterbildung der Erfindung gemäß Anspruch 6 dient einer einfachen Nachrüstung der Erfindung an schon bestehenden Bohrtischen ohne nennenswerten Eingriff in die Mechanik des Bohrtisches. Man kann bei dieser Variante auch leicht eine gegenüber dem Normalantrieb erhöhte Drehzahl an der zusätzlichen, randnahen Zapfstelle bereitstellen.The development of the invention according to claim 6 also serves for simple retrofitting of the invention on already existing drilling tables without any significant intervention in the mechanics of the drilling table. In this variant, it is also possible to easily provide a speed which is higher than that of the normal drive at the additional tap near the edge.

Gemäß Anspruch 7 erhält man einen Bohrtisch, bei welchem das Gehäuse in einer Richtung nur geringfügig über die Bohrachse übersteht, so daß Bohrlöcher in unmittelbarer Nähe einer Gebäudewand erzeugt werden können, bei insgesamt besonders kompakten Abmessungen des Gehäuses in zur Bohrachse senkrechter Richtung (entspricht bei üblichem Einsatz der Fahrtrichtung des Fahrgestelles).According to claim 7, a drilling table is obtained in which the housing projects in one direction only slightly beyond the drilling axis, so that boreholes can be produced in the immediate vicinity of a building wall, in total Particularly compact dimensions of the housing in the direction perpendicular to the drilling axis (corresponds to the direction of travel of the chassis in normal use).

Nachstehend wird die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung näher erläutert. In dieser zeigen:

Figur 1:
einen vertikalen axialen Schnitt durch einen Bohrtisch mit einer zusätzlichen randnahen Antriebshülse für ein Bohrwerkzeug;
Figur 2:
eine ähnliche Ansicht wie Figur 1, in welcher ein abgewandelter Bohrtisch wiedergegeben ist; und
Figur 3:
eine zu Figur 1 ähnliche Schnittansicht, in welcher ein nochmals abgewandelter Bohrtisch gezeigt ist.
The invention is explained in more detail below on the basis of exemplary embodiments with reference to the drawing. In this show:
Figure 1:
a vertical axial section through a drilling table with an additional drive sleeve near the edge for a drilling tool;
Figure 2:
a view similar to Figure 1, in which a modified drilling table is shown; and
Figure 3:
a sectional view similar to Figure 1, in which a further modified drilling table is shown.

In Figur 1 ist mit 10 insgesamt ein Bohrtisch bezeichnet, der auf einem gestrichelt angedeuteten Mäkler 12 in vertikaler Richtung verfahrbar ist, z.B. unter Verwendung einer nicht näher gezeigten Seilwinde oder eines Hydraulikzylinders.In Figure 1, 10 designates a drilling table, which can be moved in the vertical direction on a leader 12 indicated by dashed lines, e.g. using a winch or hydraulic cylinder, not shown.

Der Bohrtisch 10 hat ein Hauptgehäuseunterteil 14 sowie ein Hauptgehäuseoberteil 16 sowie ein auf die in Figur 1 rechts gelegenen Stirnflächen der Hauptgehäuseteile aufgesetztes geteiltes Zusatzgehäuseteii 18. Die Gehäuseteile 14 bis 18 sind in nicht näher gezeigter Weise, z.B. durch Schrauben, lösbar miteinander verbunden.The drilling table 10 has a main housing lower part 14 and a main housing upper part 16 and a split additional housing part 18, which is placed on the end faces of the main housing parts on the right in FIG. 1. The housing parts 14 to 18 are shown in a manner not shown, e.g. detachably connected by screws.

An der in Figur 1 vorneliegenden Seitenfläche des Hauptgehäuseunterteiles 14 ist eine I-förmigen Querschnitt aufweisende Führungsschiene 20 befestigt. Ähnlich ist eine zweite Führungsschiene an der hinteren Seitenfläche des Gehäuseunterteiles 14 festgemacht. Die Führungsschienen 20 arbeiten mit den Seitenflächen des Mäklers 12 zusammen und bilden so die Führung für den Bohrtisch 10.On the side surface of the main housing lower part 14 lying in FIG. 1 there is an I-shaped cross section Guide rail 20 attached. Similarly, a second guide rail is attached to the rear side surface of the lower housing part 14. The guide rails 20 cooperate with the side surfaces of the leader 12 and thus form the guide for the drilling table 10.

Auf der Oberseite des Gehäuseoberteiles 16 ist ein hydraulischer Antriebsmotor 22 angebracht. Dessen Welle 24 trägt ein Ritzel 26. Lager 28, 30 dienen zur Lagerung der Welle 24 im Bohrtischgehäuse.A hydraulic drive motor 22 is attached to the top of the upper housing part 16. Whose shaft 24 carries a pinion 26. Bearings 28, 30 serve to support the shaft 24 in the drilling table housing.

Das Ritzel 26 arbeitet auf ein verglichen mit ihm großen Durchmesser aufweisendes Untersetzerzahnrad 32 mit angeformten Wellenstummeln 34. Lager 36 38 dienen zur Lagerung des Untersetzerzahnrades 32 im Bohrtischgehäuse.The pinion 26 works on a coaster gear 32 with a large diameter compared to it, with integrally formed shaft ends 34. Bearings 36 38 serve to mount the coaster gear 32 in the drill table housing.

Das Untersetzerzahnrad 32 hat einen mittigen, quadratischen Querschnitt aufweisenden Durchgang 40 zur Aufnahme einer entsprechend vierkantigen Antriebsstange für ein Bohrwerkzeug. Oberhalb und unterhalb des Durchganges 40 sind im Hauptgehäuseunterteil 14 und im Hauptgehäuseoberteil 16 Öffnungen 42, 44 vorgesehen.The reduction gear 32 has a central, square cross-section passage 40 for receiving a corresponding square drive rod for a drilling tool. Openings 42, 44 are provided above and below the passage 40 in the main housing lower part 14 and in the main housing upper part 16.

Im Inneren des Zusatzgehäuseteiles 18 ist über Lager 46, 48 eine Ahtriebshülse 50 gelagert. Diese hat eine mittige Öffnung 52 mit gleichem quadratischem Querschnitt wie der Durchgang 40. An die Antriebshülse 50 ist ein Zahnkranz 54 angeformt, der mit dem Untersetzerzahnrad 32 kämmt. Der Zahnkranz 54 hat verglichen mit dem Durchmesser des Untersetzerzahnrades 32 kleinen Durchmesser, so daß die Achse der Antriebshülse 50 nahe beim in Figur 1 rechts gelegenen Rand des Bohrtisches 10 liegt.In the interior of the additional housing part 18, a drive sleeve 50 is mounted via bearings 46, 48. This has a central opening 52 with the same square cross section as the passage 40. A toothed ring 54, which meshes with the reduction gear 32, is formed on the drive sleeve 50. The ring gear 54 has a small diameter compared to the diameter of the reduction gear 32, so that the axis of the drive sleeve 50 is close to the edge of the drilling table 10 located on the right in FIG.

In Figur 1 ist gestrichelt eine Vierkant-Antriebsstange 56 wiedergegeben, die im axialen Gleitspiel die Öffnung 52 durchsetzt. Am unteren Ende der Antriebsstange 56 ist über eine Kupplung 58 ein Bohrer 60 angesetzt.In Figure 1, a square drive rod 56 is shown in dashed lines, the opening in the axial sliding play 52 enforced. At the lower end of the drive rod 56, a drill 60 is attached via a coupling 58.

Wie aus Figur 1 ersichtlich, kann man den Bohrer 60 unmittelbar vor einer Gebäudewand ins Erdreich hineindrehen, ohne daß das Bohrtischgehäuse an der Gehäusewand anstößt.As can be seen from FIG. 1, the drill 60 can be screwed into the ground immediately in front of a building wall, without the drilling table housing abutting the housing wall.

Der in Figur 1 gezeigte Bohrtisch 10 kann aber auch wie ein herkömmlicher Bohrtisch arbeiten: Man braucht hierzu nur eine Antriebsstange 56 in den Durchgang 40 des Untersetzerzahnrades 32 einzuführen.The drilling table 10 shown in FIG. 1 can also work like a conventional drilling table: all that is required is to insert a drive rod 56 into the passage 40 of the reduction gear 32.

Läßt man bei dem in Figur 1 gezeigten Bohrtisch das Zusatzgehäuseteil 18 und die Antriebshülse 50 weg und verschließt man die Hauptgehäuseteile 14, 16 am rechten Ende durch eine Platte, so erhält man einen herkömmlichen Bohrtisch. Man kann somit mit weitgehend standardisierten Bauteilen sowohl Bohrtische mit einer zusätzlichen randnahen Antriebsstangen-Aufnahme als auch herkömmliche Bohrtische bauen.If the additional housing part 18 and the drive sleeve 50 are omitted from the drilling table shown in FIG. 1 and the main housing parts 14, 16 are closed by a plate at the right end, a conventional drilling table is obtained. With largely standardized components you can build both drilling tables with an additional drive rod holder near the edge and conventional drilling tables.

Umgekehrt erkennt man, daß man dann, wenn man das Bohrtischgehäuse eines herkömmlichen Bohrtisches an der in Figur 1 rechts gelegenen Stirnfläche öffnet durch einfaches Anbauen des Zusatzgehäuseteiles 18 mit der darin gelagerten Antriebshülse 50 die Möglichkeit einer randnahen Zapfstelle für die Bohrerantriebsbewegung schafft.Conversely, it can be seen that when the drill table housing of a conventional drill table is opened at the end face on the right in FIG. 1, by simply attaching the additional housing part 18 with the drive sleeve 50 mounted therein, the possibility of a tap near the edge for the drill drive movement is created.

Die in Figur 1 gezeigte Konstruktion hat auch den Vorteil, daß man auf mechanisch sehr einfache Weise Bohrer-Antriebsbewegungen mit unterschiedlicher Drehzahl bereitstellt.The construction shown in FIG. 1 also has the advantage that drill drive movements at different speeds are provided in a mechanically very simple manner.

Figur 2 zeigt einen abgewandelten Bohrtisch, bei welchem die randnahe Zapfstelle mit gleicher Geschwindigkeit und gleichem Drehsinn umläuft wie die Zapfstelle des herkömmlichen Bohrtisches. Bauteile, die unter Bezugnahme auf die Figur 1 schon erläutert wurden, sind wieder mit denselben Bezugszeichen versehen und werden nicht noch einmal detailliert beschrieben.FIG. 2 shows a modified drilling table in which the tap near the edge rotates at the same speed and in the same direction of rotation as the tap of the conventional drilling table. Components with reference to the Figure 1 has already been explained, are again provided with the same reference numerals and will not be described again in detail.

Die Antriebshülse 50 trägt an ihrem oberen, über das Zusatzgehäuseteil 18 herausgeführten Ende ein Kettenrad 66. Dieses wird durch eine nur schematisch gestrichelt angedeutete Kette 64 angetrieben, die über ein treibendes Kettenrad 62 läuft. Letzteres sitzt am oberen Ende eines insgesamt mit 68 bezeichneten Antriebsteiles. Dieses hat einen vierkantigen Kopplungsabschnitt 70, der formschlüssig in den quadratischen Durchgang 40 des Untersetzerzahnrades 32 paßt, sowie einen zylindrischen Bund 72, mit den das Antriebsteil 68 auf der Oberseite des Untersetzerzahnrades 32 sitzt. Durch eine auf der Unterseite des Hauptgehäuseunterteiles 14 angreifende Unterlagscheibe 74 und einen Splint 76 ist das Antriebsteil 68 unverlierbar mit dem Untersetzerzahnrad 32 verbunden.The drive sleeve 50 carries at its upper end, which is led out via the additional housing part 18, a sprocket 66. This is driven by a chain 64, which is only indicated schematically by dashed lines and which runs via a driving sprocket 62. The latter sits at the upper end of a drive part, designated overall by 68. This has a four-sided coupling section 70, which fits in a form-fitting manner in the square passage 40 of the coaster gear 32, and a cylindrical collar 72, with which the drive part 68 sits on the top of the coaster gear 32. The drive part 68 is captively connected to the reduction gear 32 by a washer 74 engaging on the underside of the main lower housing part 14 and a split pin 76.

Eine Blechabdeckung 78 umgibt den Kettentrieb, der Untersetzerzahnrad 32 und Antriebshülse 50 zur synchronen Drehbewegung verbindet.A sheet metal cover 78 surrounds the chain drive, which connects the reduction gear 32 and the drive sleeve 50 for the synchronous rotary movement.

Bei der in Figur 2 gezeigten Variante braucht man zur Nachrüstung der randnahen Zapfstelle keinerlei mechanische Eingriffe in einen herkömmlichen Bohrtisch vorzunehmen. Man braucht nur das Zusatzgehäuseteil 18 auf das Hauptgehäuse aufzuschrauben, das Antriebsteil 68 in das Untersetzerzahnrad 32 einzusetzen und die Kette 64 über die Kettenräder 62 und 66 zu legen.In the variant shown in FIG. 2, no mechanical intervention in a conventional drilling table is required to retrofit the tap near the edge. You only need to screw the additional housing part 18 onto the main housing, insert the drive part 68 into the reduction gear 32 and place the chain 64 over the chain wheels 62 and 66.

Der in Figur 3 gezeigte abgewandelte Bohrtisch zeichnet sich durch besonders geringe Abmessungen in horizontaler Richtung aus. Dies wird dadurch möglich, daß man das Untersetzerzahnrad 32 in einer den Führungsschienen 20 benachbarten vertikalen Ebene umlaufen läßt. Beim Ausführungsbeispiel nach Figur 3 sind funktional obenstehend schon erläuterten Bauteilen entsprechende Bauteile wieder mit denselben Bezugszeichen versehen. Diese Bauteile werden nachstehend nicht nochmals im einzelnen beschrieben.The modified drilling table shown in FIG. 3 is characterized by particularly small dimensions in the horizontal direction. This is made possible by placing the reduction gear 32 in an adjacent position to the guide rails 20 vertical plane. In the exemplary embodiment according to FIG. 3, components that have already been explained functionally above are again provided with the same reference numerals. These components are not described again in detail below.

Der in Figur 3 nach rechts vom Untersetzerzahnrad 32 weglaufende der Wellenstummel 34 trägt an seinem rechts gelegenen Ende ein Kegelrad 80, und dieses kämmt mit dem entsprechend kegelig ausgebildeten Zahnkranz 54 der Antriebshülse 50.The shaft stub 34 that runs to the right from the reduction gear 32 in FIG. 3 carries a bevel gear 80 at its right-hand end, and this meshes with the correspondingly conical toothed ring 54 of the drive sleeve 50.

Das Ausführungsbeispiel nach Figur 3 bietet schon von Hause aus eine randnahe Zapfstelle für die Bohrer-Antriebsbewegung. Es zeichnet sich durch besonders kompakten Aufbau bei nur wenigen mechanischen Teilen aus und wird daher für den Neubau von Bohrtischen bevorzugt, während die Ausführungsbeispiele nach den Figuren 1 und 2 vorzugsweise bei der Nachrüstung schon vorhandener Bohrtische Verwendung finden.The exemplary embodiment according to FIG. 3 already offers a tap near the edge for the drill drive movement. It is characterized by a particularly compact structure with only a few mechanical parts and is therefore preferred for the construction of new drilling tables, while the exemplary embodiments according to FIGS. 1 and 2 are preferably used when retrofitting existing drilling tables.

In Abwandlung des in Figur 3 gezeigten Ausführungsbeispieles kann man den Antriebsmotor 22 auch auf die Oberseite des Hauptgehäuseoberteiles 16 setzen, so daß die Welle 24 wieder um eine vertikale Achse umläuft. Das Ritzel 26 wird dann als Kegelritzel ausgebildet, entsprechend kegelig ist dann die Außenverzahnung des Untersetzerzahnrades 32. Dies ermöglicht es, den das Kegelrad 80 tragenden Wellenstummel 34 zu verkürzen, wodurch die Achse der Antriebshülse 50 noch näher zum Mäkler 12 gelegt werden kann.In a modification of the exemplary embodiment shown in FIG. 3, the drive motor 22 can also be placed on the upper side of the main housing upper part 16, so that the shaft 24 rotates again around a vertical axis. The pinion 26 is then designed as a bevel pinion, the outer toothing of the reduction gear 32 is correspondingly tapered. This makes it possible to shorten the shaft end 34 carrying the bevel gear 80, as a result of which the axis of the drive sleeve 50 can be placed even closer to the leader 12.

Claims (7)

  1. Drilling machine table for a portable drilling implement, comprising a housing (14, 16, 18) which is movable on a leader (12), a drive motor (22) which acts via a pinion (26) on a reduction gear (32) of large diameter compared with the diameter of the pinion, and a drive sleeve (50) which is set in rotation by the reduction gear (32) and which is constructed with a central non-circular opening (52) for receiving in an axially displaceable manner a drive rod (56) of correspondingly non-circular cross-section which is connectable to a drilling tool (60), characterised in that the drive sleeve (50) and a crown gear (54) connected thereto have a small diameter compared with the diameter of the reduction gear (32), and the drive sleeve (50) is arranged in the immediate vicinity of one of the side faces of the housing (14, 16, 18).
  2. Drilling machine table according to claim 1, characterised in that that side face of the housing which is adjacent to the drive sleeve (50) lies opposite that side face of the housing which is provided with guide means (20) cooperating with the leader (12).
  3. Drilling machine table according to claim 1 or 2, characterised in that the drive sleeve (50) is supported in an additional housing (18) attached to one side face of the main housing (14, 16) which holds the reduction gear (32).
  4. Drilling machine table according to any one of claims 1 to 3, wherein the reduction gear (32) has a central non-circular passage (40) for receiving in an axially displaceable manner a correspondingly non-circular drive rod (56), characterised in that there is inserted in the non-circular passage (40) a correspondingly non-circular coupling part (70) which is connected to a crown gear (62) that is coupled to the crown gear (66) of the drive sleeve (50).
  5. Drilling machine table according to claim 4, characterised in that the coupling part crown gear (62) and the drive sleeve crown gear (66) are coupled by a chain (64).
  6. Drilling machine table according to any one of claims 1 to 3, wherein the reduction gear (32) has a central non-circular passage (40) for receiving in an axially displaceable manner a correspondingly non-circular drive rod (56), characterised in that the drive sleeve crown gear (54), just as the pinion (26) of the drive motor (52), meshes with the reduction gear (32).
  7. Drilling machine table according to any one of claims 1 to 3, characterised in that the reduction gear (32) rotates in a vertical plane adjacent to the guide means (20) cooperating with the leader (12) and either meshes via a small bevel gear (80) with the drive sleeve crown gear (54), which is likewise in the form of a bevel gear, or acts via a worm on the drive sleeve crown gear.
EP90914712A 1990-09-08 1990-09-08 Drilling machine table Expired - Lifetime EP0545922B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90914712T ATE110135T1 (en) 1990-09-08 1990-09-08 DRILLING TABLE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1990/001519 WO1992004523A1 (en) 1990-09-08 1990-09-08 Drilling machine table

Publications (2)

Publication Number Publication Date
EP0545922A1 EP0545922A1 (en) 1993-06-16
EP0545922B1 true EP0545922B1 (en) 1994-08-17

Family

ID=8165518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90914712A Expired - Lifetime EP0545922B1 (en) 1990-09-08 1990-09-08 Drilling machine table

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US (1) US5350027A (en)
EP (1) EP0545922B1 (en)
DE (1) DE59006859D1 (en)
WO (1) WO1992004523A1 (en)

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Publication number Priority date Publication date Assignee Title
US5598893A (en) * 1995-03-28 1997-02-04 Carlson; Thomas G. System and method for setting up ski course gates
DE19530802C1 (en) * 1995-08-22 1996-11-28 Delmag Maschinenfabrik Portable drilling rig with manual and automatic reversing switches
AT500957B1 (en) 2004-10-21 2008-02-15 Karl Schaefer DEVICE FOR SCREWING BARGED ELEMENTS
US7351012B2 (en) * 2005-05-03 2008-04-01 9031-1671 Quebec Inc. Rotational drive apparatus for screw pilings
GB2433716A (en) * 2005-12-29 2007-07-04 Bosch Gmbh Robert Hammer drill and/or hammer chisel with bevel gear
KR101258522B1 (en) 2010-12-20 2013-04-29 두산중공업 주식회사 Drill apparatus for rotor processing

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US3125172A (en) * 1964-03-17 figure
US2533957A (en) * 1948-10-28 1950-12-12 William H Roelfs Posthole digger
US3072203A (en) * 1959-01-26 1963-01-08 Joy Mfg Co Rotary earth boring drill
US3316983A (en) * 1964-10-09 1967-05-02 Louis N Goodman Earth auger
US3406768A (en) * 1966-09-09 1968-10-22 Alaskaug Inc Rock drilling auger apparatus
US3973468A (en) * 1973-11-21 1976-08-10 Russell Jr Wayne B Multi-stage extendible and contractible shaft with shock absorption
US4190119A (en) * 1977-12-12 1980-02-26 Joy Manufacturing Company Earth drilling apparatus
US4246974A (en) * 1978-06-19 1981-01-27 Bpr Grouting And Engineering, Inc. Offset drilling machine
FR2432864A1 (en) * 1978-08-08 1980-03-07 Martinelli Claude TOOL HOLDER DEVICE FOR DENTAL WORK
US4612998A (en) * 1984-07-12 1986-09-23 P. V. Tool, Inc. Retracting positive feed drill with idle mode
DE3839007C1 (en) * 1988-11-18 1989-12-07 Turmag Turbo-Maschinen-Ag Nuesse & Graefer, 4322 Sprockhoevel, De
US5033554A (en) * 1990-08-06 1991-07-23 Joseph Younes Well point placement and removal apparatus

Also Published As

Publication number Publication date
DE59006859D1 (en) 1994-09-22
US5350027A (en) 1994-09-27
WO1992004523A1 (en) 1992-03-19
EP0545922A1 (en) 1993-06-16

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