EP1851411B1 - Chisel holder system - Google Patents

Chisel holder system Download PDF

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Publication number
EP1851411B1
EP1851411B1 EP05825940.9A EP05825940A EP1851411B1 EP 1851411 B1 EP1851411 B1 EP 1851411B1 EP 05825940 A EP05825940 A EP 05825940A EP 1851411 B1 EP1851411 B1 EP 1851411B1
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EP
European Patent Office
Prior art keywords
base part
supporting surface
shoulder
region
plug
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.)
Not-in-force
Application number
EP05825940.9A
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German (de)
French (fr)
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EP1851411A1 (en
Inventor
Bernd Holl
Dieter Simons
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Wirtgen GmbH
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Wirtgen GmbH
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Publication of EP1851411A1 publication Critical patent/EP1851411A1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits

Definitions

  • the invention relates to a chisel holder system having a base part and a chisel holder, the base part having a plug-in receptacle into which the chisel holder is inserted with a plug projection, wherein the chisel holder is supported with a contact surface on a support surface of the base part, wherein the base part against the support surface, then having a shoulder, and wherein between the shoulder and a facing end surface of the chisel holder a Vietnamesesetzraum is formed.
  • Such a chisel holder system is from the DE 43 22 401 A1 known.
  • This interchangeable holder system has a base part which can be welded, for example, on the lateral surface of a Fräswalzenrohres a road milling machine. It has a plug-in receptacle, in which a chisel holder with its Schafförmigen plug approach is used.
  • the base part has a shoulder around the plug-in receptacle of the base part.
  • the bit holder is arranged at a distance from the paragraph.
  • the chisel holder is supported solely on the support surface of the base part for transmitting the forces during operation.
  • the chisel holder represents a wearing part, which is replaced when the wear limit is reached.
  • the base part must be protected against wear as possible, since it is the expensive and only with high assembly costs to be replaced part of the chisel holder system.
  • the support surface With the depression, the support surface is delimited and created a defined support area. Should wear on the parts of the chisel holder system occur during operation, the recess prevents burr formation on the base part, since the chisel holder protrudes over the support surface on the recess with its support surface and the support surface can not work into the support surface here. Thus, the support surface retains its shape and position. Once the bit holder is worn, it can be exchanged for a new one and this defined on the support surface to be supported again.
  • the depression is groove-like and forms a recess extending in the direction vertical to the support surface.
  • the depression can be easily finished.
  • the depression in the groove bottom is rounded; so that the notch stresses introduced into the base part are minimized.
  • the contact surface of the chisel holder projects beyond the support surface of the base part in the region of the depression and ends there, then it is ensured that the contact surface of the chisel holder always projects beyond the support surface in the region of the depression. This degree of formation on the base part is reliably prevented in a simple manner.
  • the contact surface of the chisel holder projects beyond the support surface of the base part on all sides. In this way, the outline of the contact surface of the base part relative to the contact surface of the chisel holder is offset inwards. Should wear occur, the support surface will be incorporated into the bit holder and will remain intact. This embodiment also protects the support surface from scrap material that drains off the bit holder. This leaching to the support surface are safe and easily prevented
  • a preferred embodiment of the invention is such that the support surface of the base part is formed by a shoulder whose cross-sectional dimension running parallel to the support surface is smaller than or equal to the contact surface at least in the area adjoining the support surface, so that the contact surface projects beyond the shoulder outside in this region.
  • the heel thus forms a wear area within which the support surface can be processed, but they always functionally support the bit holder. In this way, the service life of the base part can be maintained long.
  • the plug-in receptacle of the base part for the plug attachment of the chisel holder extends into the area of the support surface, then it can be provided that the plug-in receptacle terminates at its end facing the bit holder in a cross-sectional widening, that the depression runs out in the region of this cross-sectional widening, and that the bit holder engages with a transition section in the cross-sectional widening, wherein the transition section leads the plug-in approach in the support surface.
  • the transition region between the recess and the cross-sectional widening is optimally adapted to the dimensioning of the dimensions of the support surface in the region of the insertion projection.
  • bit holder has a lower hardness in the region of the contact surface than the support surface of the base part.
  • the Fig. 1 and 2 show a base part 10, which is fastened with a curved connecting surface 11 on the outer periphery of a Fräswalzenrohres, such as a road milling machine.
  • the base part 10 has a support surface 12 to which a paragraph 13 is connected at an angle.
  • a plug-in receptacle 14 is introduced as a recess in the base part 10.
  • the plug-in receptacle 14 runs out by means of a cross-sectional widening 14.1 in the support surface 12 or in the shoulder 13.
  • the support surface 12 is supported by a shoulder 16.1.
  • the support surface 12 is closed by means of a recess 15.
  • the recess 15 is arranged as a groove on both sides of the plug-in receptacle 14 and creates a spatial connection between the cross-sectional widening 14.1 and the shoulder 16.1.
  • the groove depth is chosen so that it can detect the wear of the support surface 12 as a wear marker.
  • the 3 and 4 show a bit holder 20, which has a base body 22.
  • the base body 22 carries a downwardly directed contact surface 27.
  • the front side is followed by an apron 28 on the base body 22.
  • a plug-in projection 21 In the transition region between Grundköper 22 and skirt 28 is a plug-in projection 21, whose cross-section is adapted to the plug receptacle 14 of the base part 10.
  • the plug-in approach 21 by means of a transition section 21.2 in the contact surface 27 of the body 22 and a final surface 28.1 of the skirt 28 via.
  • the end portion 23 terminates with an annular bearing surface 25, in the center of a bit holder 26 is drilled.
  • the end portion 24 is provided for wear detection with circumferential groove-like depressions 24.1.
  • To stabilize the approach 23 and the improved outflow of waste material of the neck 23 is connected to the skirt 28 via a web-like Spanbrechner 29.
  • the plug-in projection 21 is provided with a pressure surface 21.1.
  • FIGS. 5 and 6 show the base part 10 and the bit holder 20 in the assembled position.
  • the plug 21 is inserted into the socket 14.
  • fastening screw which acts on the pressure surface 21.1 of the plug 21 and which is screwed into the screw 17 of the base member 10
  • the bit holder 20 can be fixed to the base part 10.
  • the contact surface 27 is supported on the support surface 12.
  • the end face 28.1 stands for the formation of a Nachsetzraumes at a distance from the shoulder 13th
  • the bit holder 20 stands, as the Fig. 6 clearly reveals, circumferentially with its contact surface 27 via the support surface 12 via.
  • the contact surface 27 closes in the region above the depression 15.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Road Repair (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Description

Die Erfindung betrifft ein Meißelhaltersystem mit einem Basisteil und einem Meißelhalter, wobei das Basisteil eine Steckaufnahme aufweist, in die der Meißelhalter mit einem Steckansatz eingesetzt ist, wobei der Meißelhalter mit einer Anlagefläche an einer Stützfläche des Basisteils abgestützt ist, wobei das Basisteil an die Stützfläche, anschließend einen Absatz aufweist, und wobei zwischen dem Absatz und einer zugekehrten Abschlussfläche des Meißelhalters ein Nachsetzraum gebildet ist.The invention relates to a chisel holder system having a base part and a chisel holder, the base part having a plug-in receptacle into which the chisel holder is inserted with a plug projection, wherein the chisel holder is supported with a contact surface on a support surface of the base part, wherein the base part against the support surface, then having a shoulder, and wherein between the shoulder and a facing end surface of the chisel holder a Nachsetzraum is formed.

Ein derartiges Meißelhaltersystem ist aus der DE 43 22 401 A1 bekannt. Dieses Wechselhaltersystem weist ein Basisteil auf, das beispielsweise auf der Mantelfläche eines Fräswalzenrohres einer Straßenfräsmaschine aufgeschweißt werden kann. Es besitzt eine Steckaufnahme, in die ein Meißelhalter mit seinem schafförmigen Steckansatz einsetzbar ist. Um die Steckaufnahme des Basisteils herum weist das Basisteil einen Absatz auf. Zur Bildung eines Nachsetzraumes ist der Meißelhalter gegenüber dem Absatz beabstandet angeordnet. Damit stützt sich der Meißelhalter alleine an der Stützfläche des Basisteils zur Übertragung der Kräfte im Betriebseinsatz ab. Bei diesem Meißelhaltersystem stellt der Meißelhalter ein Verschleißteil dar, der bei Erreichen der Verschleißgrenze ausgetauscht wird.Such a chisel holder system is from the DE 43 22 401 A1 known. This interchangeable holder system has a base part which can be welded, for example, on the lateral surface of a Fräswalzenrohres a road milling machine. It has a plug-in receptacle, in which a chisel holder with its Schafförmigen plug approach is used. The base part has a shoulder around the plug-in receptacle of the base part. To form a Nachsetzraumes the bit holder is arranged at a distance from the paragraph. Thus, the chisel holder is supported solely on the support surface of the base part for transmitting the forces during operation. In this chisel holder system, the chisel holder represents a wearing part, which is replaced when the wear limit is reached.

Das Basisteil hingegen muss vor Verschleißeinwirkung möglichst geschützt werden, da es das teure und nur mit hohem Montageaufwand zu ersetzende Teil des Meißelhaltersystems ist.The base part, however, must be protected against wear as possible, since it is the expensive and only with high assembly costs to be replaced part of the chisel holder system.

DE 101 61 713 beschreibt ein weiteres Meißelhaltersystem. DE 101 61 713 describes another chisel holder system.

Es ist Aufgabe der Erfindung, ein Meißelhaltersystem der eingangs erwähnten Art zu schaffen, bei dem für das Basisteil hohe Standzeiten verwirklicht werden können.It is an object of the invention to provide a chisel holder system of the type mentioned, in which for the base high durability can be realized.

Diese Aufgabe wird durch ein Basisteil gemäß Anspruch 1 gelöst.This object is achieved by a base part according to claim 1.

Mit der Vertiefung wird die Stützfläche abgegrenzt und ein definierter Stützbereich geschaffen. Sollte sich im Betriebseinsatz Verschleiß an den Teilen des Meißelhaltersystems einstellen, so verhindert die Vertiefung eine Gratbildung am Basisteil, da der Meißelhalter an der Vertiefung mit seiner Auflagefläche über die Stützfläche ragt und sich die Auflagefläche hier nicht in die Stützfläche einarbeiten kann. Damit behält die Stützfläche ihre Form und Lage. Sobald der Meißelhalter verschlissen ist, kann er gegen einen neuen getauscht und dieser definiert an der Stützfläche wieder abgestützt werden.With the depression, the support surface is delimited and created a defined support area. Should wear on the parts of the chisel holder system occur during operation, the recess prevents burr formation on the base part, since the chisel holder protrudes over the support surface on the recess with its support surface and the support surface can not work into the support surface here. Thus, the support surface retains its shape and position. Once the bit holder is worn, it can be exchanged for a new one and this defined on the support surface to be supported again.

Gemäß der Erfindung ist es vorgesehen, dass die Vertiefung nutartig ausgebildet ist und einen sich in Richtung vertikal zur Stützfläche erstreckenden Rücksprung bildet.According to the invention, it is provided that the depression is groove-like and forms a recess extending in the direction vertical to the support surface.

Die Vertiefung lässt sich einfach fertigen. Bevorzugt ist die Vertiefung im Nutgrund abgerundet; so dass die in das Basisteil eingebrachten Kerbspannungen minimiert werden.The depression can be easily finished. Preferably, the depression in the groove bottom is rounded; so that the notch stresses introduced into the base part are minimized.

Wenn vorgesehen ist, dass die Anlagefläche des Meißelhalters die Stützfläche des Basisteils im Bereich der Vertiefung überragt und dort endet, dann ist sichergestellt, dass die Anlagefläche des Meißelhalters stets die Stützfläche im Bereich der Vertiefung überragt. Damit ist eine Gradbildung am Basisteil auf einfache Weise zuverlässig verhindert.If it is provided that the contact surface of the chisel holder projects beyond the support surface of the base part in the region of the depression and ends there, then it is ensured that the contact surface of the chisel holder always projects beyond the support surface in the region of the depression. This degree of formation on the base part is reliably prevented in a simple manner.

In Weiterbildung dieser Maßnahme kann es vorgesehen sein, dass die Anlagefläche des Meißelhalters die Stützfläche des Basisteils allseitig überragt. Auf diese Weise wird der Umriss der Kontaktfläche des Basisteils gegenüber der Anlagefläche des Meißelhalters nach innen versetzt. Sollte Verschleiß auftreten, wird sich dabei die Stützfläche in den Meißelhalter einarbeiten und bleibt selbst erhalten. Diese Ausgestaltung schützt darüber hinaus die Stützfläche vor Abraummaterial, das am Meißelhalter abfließt. Damit sind Auswaschungen an der Stützfläche sicher und auf einfache Weise verhindertIn development of this measure, it may be provided that the contact surface of the chisel holder projects beyond the support surface of the base part on all sides. In this way, the outline of the contact surface of the base part relative to the contact surface of the chisel holder is offset inwards. Should wear occur, the support surface will be incorporated into the bit holder and will remain intact. This embodiment also protects the support surface from scrap material that drains off the bit holder. This leaching to the support surface are safe and easily prevented

Eine bevorzugte Erfindungsausgestaltung ist derart, dass die Stützfläche des Basisteils von einem Absatz gebildet ist, dessen parallel zur Stützfläche verlaufende Querschnittsdimensionierung zumindest in dem an die Stützfläche anschließenden Bereich kleiner oder gleich der Anlagefläche ist, so dass die Anlagefläche den Absatz in diesen Bereich außenseitig überragt. Der Absatz bildet damit einen Verschleißbereich, innerhalb dem die Stützfläche abgearbeitet werden kann, sie jedoch stets funktionsgemäß den Meißelhalter abstützen kann. Auf diese Weise kann die Standzeit des Basisteils lange aufrechterhalten werden.A preferred embodiment of the invention is such that the support surface of the base part is formed by a shoulder whose cross-sectional dimension running parallel to the support surface is smaller than or equal to the contact surface at least in the area adjoining the support surface, so that the contact surface projects beyond the shoulder outside in this region. The heel thus forms a wear area within which the support surface can be processed, but they always functionally support the bit holder. In this way, the service life of the base part can be maintained long.

Wenn sich die Steckaufnahme des Basisteils für den Steckansatz des Meißelhalters bis hin in den Bereich der Stützfläche erstreckt, dann kann es vorgesehen sein, dass die Steckaufnahme an ihrem, dem Meißelhalter zugekehrten Ende in einer Querschnittserweiterung ausläuft, dass die Vertiefung im Bereich dieser Querschnittserweiterung ausläuft, und dass der Meißelhalter mit einem Übergangsabschnitt in die Querschnittserweiterung eingreift, wobei der Übergangsabschnitt den Steckansatz in die Auflagefläche überleitet. Auf diese Weise ist der Übergangsbereich zwischen der Vertiefung und der Querschnittserweiterung an die Dimensionierung der Abmessungen der Auflagefläche im Bereich des Steckansatzes optimal angepasst.If the plug-in receptacle of the base part for the plug attachment of the chisel holder extends into the area of the support surface, then it can be provided that the plug-in receptacle terminates at its end facing the bit holder in a cross-sectional widening, that the depression runs out in the region of this cross-sectional widening, and that the bit holder engages with a transition section in the cross-sectional widening, wherein the transition section leads the plug-in approach in the support surface. In this way, the transition region between the recess and the cross-sectional widening is optimally adapted to the dimensioning of the dimensions of the support surface in the region of the insertion projection.

Eine weitere Standzeitoptimierung lässt sich dann erreichen, wenn vorgesehen ist, dass der Meißelhalter im Bereich der Anlagefläche eine geringere Härte, als die Stützfläche des Basisteils aufweist.Further service life optimization can be achieved if it is provided that the bit holder has a lower hardness in the region of the contact surface than the support surface of the base part.

Die Erfindung wird im Folgenden anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1:
Ein Basisteil eines Meißelhaltersystems in Seitenansicht
Fig. 2:
das Basisteil gem. Fig. 1 in perspektivischer Vorderansicht,
Fig. 3
in Seitenansicht einen Meißelhalter des Meißelhaltersystems,
Fig. 4
den Meißelhalter gemäß Fig. 3 in perspektivischer Ansicht von hinten,
Fig. 5
eine Zusammenbauzeichnung mit den in Fig. 1 bis 4 dargestellten Bauteilen und
Fig. 6
einen in der Fig. 5 mit VI - VI gekennzeichneten Schnittverlauf.
The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:
Fig. 1:
A base part of a chisel holder system in side view
Fig. 2:
the base part acc. Fig. 1 in a perspective front view,
Fig. 3
in side view a chisel holder of the chisel holder system,
Fig. 4
according to the chisel holder Fig. 3 in perspective view from behind,
Fig. 5
an assembly drawing with the in Fig. 1 to 4 represented components and
Fig. 6
one in the Fig. 5 Sectioning marked VI - VI.

Die Fig. 1 und 2 zeigen ein Basisteil 10, das mit einer gekrümmten Verbindungsfläche 11 an dem Außenumfang eines Fräswalzenrohres, beispielsweise einer Straßenfräsmaschine, befestigbar ist. Das Basisteil 10 weist eine Stützfläche 12 auf, an die im Winkel ein Absatz 13 angeschlossen ist. Im Übergangsbereich von Absatz 13 und Stützfläche 12 ist eine Steckaufnahme 14 als Ausnehmung in das Basisteil 10 eingebracht. Die Steckaufnahme 14 läuft mittels einer Querschnittserweiterung 14.1 in der Stützfläche 12 beziehungsweise in dem Absatz 13 aus.The Fig. 1 and 2 show a base part 10, which is fastened with a curved connecting surface 11 on the outer periphery of a Fräswalzenrohres, such as a road milling machine. The base part 10 has a support surface 12 to which a paragraph 13 is connected at an angle. In the transition region of paragraph 13 and support surface 12, a plug-in receptacle 14 is introduced as a recess in the base part 10. The plug-in receptacle 14 runs out by means of a cross-sectional widening 14.1 in the support surface 12 or in the shoulder 13.

Die Stützfläche 12 wird von einem Absatz 16.1 getragen. Dabei weist der Absatz 16.1 in Richtung vertikal zur Stützfläche 12 die gleiche Querschnittsdimensionierung wie die Stützfläche 12 auf. Im Übergangsbereich von der Stützfläche 12 zum Absatz 13 ist die Stützfläche 12 mittels einer Vertiefung 15 abgeschlossen. Die Vertiefung 15 ist als Nut beidseitig der Steckaufnahme 14 angeordnet und schafft eine räumliche Verbindung zwischen der Querschnittserweiterung 14.1 und dem Absatz 16.1. Dabei ist die Nuttiefe so gewählt, dass sie als Verschleißmarkierung den Abtrag der Stützfläche 12 erkennen lässt.The support surface 12 is supported by a shoulder 16.1. In this case, the paragraph 16.1 in the direction vertical to the support surface 12, the same cross-sectional dimensioning as the support surface 12. In the transition region from the support surface 12 to the shoulder 13, the support surface 12 is closed by means of a recess 15. The recess 15 is arranged as a groove on both sides of the plug-in receptacle 14 and creates a spatial connection between the cross-sectional widening 14.1 and the shoulder 16.1. The groove depth is chosen so that it can detect the wear of the support surface 12 as a wear marker.

Die Fig. 3 und 4 zeigen einen Meißelhalter 20, der einen Grundkörper 22 aufweist. Der Grundkörper 22 trägt eine nach unten gerichtete Anlagefläche 27. Frontseitig schließt sich an den Grundkörper 22 eine Schürze 28 an. Im Übergangsbereich zwischen Grundköper 22 und Schürze 28 steht ein Steckansatz 21 vor, dessen Querschnitt an den der Steckaufnahme 14 des Basisteils 10 angepasst ist.The 3 and 4 show a bit holder 20, which has a base body 22. The base body 22 carries a downwardly directed contact surface 27. The front side is followed by an apron 28 on the base body 22. In the transition region between Grundköper 22 and skirt 28 is a plug-in projection 21, whose cross-section is adapted to the plug receptacle 14 of the base part 10.

Wie die Fig. 4 erkennen lässt, geht der Steckansatz 21 mittels eines Übergangsabschnitts 21.2 in die Anlagefläche 27 des Grundkörpers 22 und eine Abschlussfläche 28.1 der Schürze 28 über.As the Fig. 4 can be seen, the plug-in approach 21 by means of a transition section 21.2 in the contact surface 27 of the body 22 and a final surface 28.1 of the skirt 28 via.

Dem Steckansatz 21 abgekehrt ist an dem Grundkörper 22 ein Ansatz 23 angeformt, der einen zylindrischen Endabschnitt 24 aufweist. Der Endabschnitt 23 schließt mit einer ringförmigen Auflagefläche 25 ab, in die zentrisch eine Meißelaufnahme 26 eingebohrt ist.Turning away from the plug-in extension 21, a projection 23, which has a cylindrical end section 24, is formed on the base body 22. The end portion 23 terminates with an annular bearing surface 25, in the center of a bit holder 26 is drilled.

Der Endabschnitt 24 ist zur Verschleißerkennung mit umlaufenden nutartigen Vertiefungen 24.1 versehen. Zur Stabilisierung des Ansatzes 23 und zum verbesserten Abfluss von Abraummaterial ist der Ansatz 23 mit der Schürze 28 über einen stegartigen Spanbrechner 29 verbunden.The end portion 24 is provided for wear detection with circumferential groove-like depressions 24.1. To stabilize the approach 23 and the improved outflow of waste material of the neck 23 is connected to the skirt 28 via a web-like Spanbrechner 29.

Wie die Fig. 4 zeigt, ist der Steckansatz 21 mit einer Druckfläche 21.1 versehen.As the Fig. 4 shows, the plug-in projection 21 is provided with a pressure surface 21.1.

Die Fig. 5 und 6 zeigen das Basisteil 10 und den Meißelhalter 20 in der Montagestellung. Dabei ist der Steckansatz 21 in die Steckaufnahme 14 eingesetzt. Mittels einer, in der Zeichnung nicht dargestellten, Befestigungsschraube, die auf die Druckfläche 21.1 des Steckansatzes 21 einwirkt und die in die Schraubaufnahme 17 des Basisteils 10 eingeschraubt ist, kann der Meißelhalter 20 am Basisteil 10 fixiert werden. Dabei stützt sich die Anlagefläche 27 an der Stützfläche 12 ab. Die Abschlussfläche 28.1 steht zur Bildung eines Nachsetzraumes im Abstand zum Absatz 13.The FIGS. 5 and 6 show the base part 10 and the bit holder 20 in the assembled position. In this case, the plug 21 is inserted into the socket 14. By means of a, not shown in the drawing, fastening screw, which acts on the pressure surface 21.1 of the plug 21 and which is screwed into the screw 17 of the base member 10, the bit holder 20 can be fixed to the base part 10. In this case, the contact surface 27 is supported on the support surface 12. The end face 28.1 stands for the formation of a Nachsetzraumes at a distance from the shoulder 13th

Der Meißelhalter 20 steht, wie dies die Fig. 6 deutlich erkennen lässt , umlaufend mit seiner Anlagefläche 27 über die Stützfläche 12 über. Insbesondere schließt die Anlagefläche 27 im Bereich über der Vertiefung 15 ab.The bit holder 20 stands, as the Fig. 6 clearly reveals, circumferentially with its contact surface 27 via the support surface 12 via. In particular, the contact surface 27 closes in the region above the depression 15.

Claims (6)

  1. Base part (10) for a pick-holder system, wherein the base part (10) has a plug-in receptacle (14) into which a pick holder (20) is insertable by way of a plug-in extension (21), wherein the pick holder (20) is supportable by way of a bearing surface (27) on a supporting surface (12) of the base part (10), wherein the base part (10) has a shoulder (13) adjoining the supporting surface (12), wherein an adjustment space is formed between the shoulder (13) and a facing terminating surface (28.1) of the insertable pick holder (20), and wherein, in the transitional region to the shoulder (13), the supporting surface (12) is offset from the shoulder (13) by means of at least one depression (15) such that the planar connection between the supporting surface (12) and the shoulder (13) is interrupted in the region of the depression (15),
    characterized
    in that the depression (15) is formed in a groove-like manner and forms a recess extending in a vertical direction with respect to the supporting surface (12).
  2. Base part according to Claim 1,
    characterized
    in that the bearing surface (27) of the pick holder (20) projects beyond the supporting surface (12) of the base part (10) in the region of the depression (15) and ends there.
  3. Base part according to Claim 1 or 2,
    characterized
    in that the bearing surface (27) of the pick holder (20) projects beyond the supporting surface (12) of the base part (10) on all sides.
  4. Base part according to one of Claims 1 to 3,
    characterized
    in that the supporting surface (12) of the base part (10) is formed by a shoulder (16.1) the cross-sectional dimensioning of which extending parallel to the supporting surface (12) is smaller than or the same as the bearing surface (27), at least in the region adjoining the supporting surface (12), such that the bearing surface (27) projects externally beyond the shoulder (16.1) in this region.
  5. Base part according to one of Claims 1 to 4,
    characterized
    in that the plug-in receptacle (14) runs out in a cross-sectional widening (14.1) at its ends facing the pick holder (20),
    in that the depression (15) runs out in the region of this cross-sectional widening (14.1), and in that the pick holder (20) engages into the cross-sectional widening (14.1) by way of a transitional section (21.2), wherein the plug-in extension (21) leads into the bearing surface (27) by way of the transitional section (21.2).
  6. Base part according to one of Claims 1 to 5,
    characterized
    in that the pick holder (20) has a lower hardness in the region of the bearing surface (27) than the supporting surface (12) of the base part (10).
EP05825940.9A 2005-01-26 2005-12-07 Chisel holder system Not-in-force EP1851411B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005003734A DE102005003734B3 (en) 2005-01-26 2005-01-26 Lathe tool holder socket is surrounded by a block that translates via a stress-relief groove to an angled side-extension
PCT/EP2005/013073 WO2006079389A1 (en) 2005-01-26 2005-12-07 Chisel holder system

Publications (2)

Publication Number Publication Date
EP1851411A1 EP1851411A1 (en) 2007-11-07
EP1851411B1 true EP1851411B1 (en) 2013-04-24

Family

ID=35668825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05825940.9A Not-in-force EP1851411B1 (en) 2005-01-26 2005-12-07 Chisel holder system

Country Status (11)

Country Link
US (1) US7784875B2 (en)
EP (1) EP1851411B1 (en)
JP (1) JP4709855B2 (en)
KR (1) KR100922176B1 (en)
CN (1) CN101091037B (en)
AU (1) AU2005325858B2 (en)
BR (1) BRPI0519944B1 (en)
DE (1) DE102005003734B3 (en)
RU (1) RU2360110C2 (en)
TW (1) TW200639319A (en)
WO (1) WO2006079389A1 (en)

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JP4855488B2 (en) * 2009-03-05 2012-01-18 エヴァーパッズ カンパニー， リミテッド Tool holding device
DE102009014729B3 (en) * 2009-03-25 2010-11-04 Wirtgen Gmbh Ejector for a road milling machine or the like
DE102009014730B3 (en) * 2009-03-25 2010-10-28 Wirtgen Gmbh Ejector or ejector unit for a road milling machine or the like
US8469456B2 (en) 2009-03-25 2013-06-25 Wirtgen Gmbh Ejector unit for a road milling machine or the like
DE102009059189A1 (en) 2009-12-17 2011-06-22 Wirtgen GmbH, 53578 Chisel holder and base part for holding a chisel holder
DE102009059188A1 (en) * 2009-12-17 2011-06-22 Wirtgen GmbH, 53578 Chisel holder and base part
AU2012258452B2 (en) * 2009-12-17 2016-02-25 Wirtgen Gmbh Bit holder and base part
DE102010038016C5 (en) 2010-10-06 2020-07-23 Wirtgen Gmbh Mixer bridge for a stabilizer / recycler
TWI483798B (en) * 2010-12-03 2015-05-11 Wirtgen Gmbh Chisel holder and chisel holder system with a chisel holder and a base
CN102486022B (en) 2010-12-03 2014-09-17 维特根有限公司 Chisel holder, and chisel holder system comprising chisel holder and base part
RU2580545C2 (en) 2010-12-03 2016-04-10 Виртген Гмбх Cutter holder
DE102010061019A1 (en) 2010-12-03 2012-06-06 Betek Gmbh & Co. Kg Chisel holder and lower tool part for a chisel holder
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USD667855S1 (en) 2011-04-11 2012-09-25 Betek Gmbh & Co. Kg Base for a chisel holder
DE102011051525A1 (en) 2011-07-04 2013-01-10 Wirtgen Gmbh Chisel holder for a soil tillage machine
USD666641S1 (en) 2011-07-04 2012-09-04 Wirtgen Gmbh Chisel holder
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GB2551098A (en) 2013-06-18 2017-12-06 Esco Corp Mineral winning pick, pick holder, and combination
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Also Published As

Publication number Publication date
EP1851411A1 (en) 2007-11-07
US7784875B2 (en) 2010-08-31
TW200639319A (en) 2006-11-16
RU2007132199A (en) 2009-03-10
BRPI0519944B1 (en) 2017-04-04
US20090289493A1 (en) 2009-11-26
RU2360110C2 (en) 2009-06-27
BRPI0519944A2 (en) 2009-04-07
WO2006079389A1 (en) 2006-08-03
JP2008528831A (en) 2008-07-31
CN101091037B (en) 2011-05-11
CN101091037A (en) 2007-12-19
KR100922176B1 (en) 2009-10-19
KR20070104352A (en) 2007-10-25
TWI333521B (en) 2010-11-21
DE102005003734B3 (en) 2006-02-16
JP4709855B2 (en) 2011-06-29
AU2005325858A1 (en) 2006-08-03
AU2005325858B2 (en) 2009-07-16

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