EP1851411A1 - Chisel holder system - Google Patents

Chisel holder system

Info

Publication number
EP1851411A1
EP1851411A1 EP05825940A EP05825940A EP1851411A1 EP 1851411 A1 EP1851411 A1 EP 1851411A1 EP 05825940 A EP05825940 A EP 05825940A EP 05825940 A EP05825940 A EP 05825940A EP 1851411 A1 EP1851411 A1 EP 1851411A1
Authority
EP
European Patent Office
Prior art keywords
chisel holder
support surface
base part
shoulder
recess
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.)
Granted
Application number
EP05825940A
Other languages
German (de)
French (fr)
Other versions
EP1851411B1 (en
Inventor
Bernd Holl
Dieter Simons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wirtgen GmbH
Original Assignee
Wirtgen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP1851411A1 publication Critical patent/EP1851411A1/en
Application granted granted Critical
Publication of EP1851411B1 publication Critical patent/EP1851411B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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 bit holder system is known from DE 43 22 401 A1.
  • 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 housing 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 on the other hand, must be protected against wear as far as possible, since it is the expensive part of the chisel holder system that can only be replaced with a high level of assembly work.
  • the support surface is offset in the transition region to the paragraph by means of at least one recess of the paragraph that in the region of the depression, the sheet-like connection between the support surface and the paragraph is interrupted.
  • 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 depression prevents burr formation on the base part, because the chisel holder protrudes above the support surface on the recess with its contact 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 recess is formed like a groove 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.
  • a 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 extends outside the heel in this region surmounted.
  • 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 terminates 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 plug-in projection.
  • bit holder has a lower hardness in the region of the contact surface than the support surface of the base part.
  • Fig. 1 A base part of a bit holder system in side view
  • Fig. 2 the base part acc. 1 in a perspective front view
  • FIG. 3 is a side view of a bit holder of the chisel holder system
  • FIG. 4 shows the bit holder of FIG. 3 in a perspective view from behind
  • Fig. 5 is an assembly drawing with the components shown in FIGS. 1 to 4 and Fig. 6 is a marked in Fig. 5 with VI - VI cutting profile.
  • FIG. 1 and 2 show a base part 10, which can be fastened with a curved connecting surface 11 on the outer circumference of a milling drum tube, for example 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 shoulder 16.1 in the direction vertical to the support surface 12 has the same cross-sectional dimensioning as the support surface 12.
  • 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 Querterrorismser- extension 14.1 and the paragraph 16.1.
  • the groove depth is chosen so that it can detect the wear of the support surface 12 as a wear marker.
  • FIGS. 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 extension 21 In the transition region between the base body 22 and the skirt 28, there is a plug-in extension 21 whose cross-section is adapted to that of the plug-in receptacle 14 of the base part 10.
  • FIG. 4 reveals, the plug-in approach 21 by means of a transition section 21.2 in the contact surface 27 of the base body 22 and a final surface 28.1 of the skirt 28 on.
  • 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 approach 23 is connected to the skirt 28 via a web-like Spanbrechner 29.
  • the plug 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 assembly 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 chisel holder 20 is, as shown in FIG. 6 clearly shows, circumferentially with its contact surface 27 via the support surface 12 via.
  • the contact surface 27 closes in the region above the depression 15.

Landscapes

  • 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)

Abstract

The invention relates to a chisel holder system which comprises a base part (10) and a chisel holder (20). The base part (10) comprises a socket (14) wherein the chisel holder (20) comprising a plug-in insert (21) is introduced. Said chisel holder (20) which comprises a bearing surface (27) is supported on a supporting surface (12) of the base part (10), and the base part (10) comprises a shoulder (13) which is connected to the supporting surface (12). A replacement chamber is formed between the shoulder (13) and a facing end surface (28.1) of the chisel holder (20). According to the invention, the supporting surface (12) is placed in the transition region in relation to the shoulder (13) by means of at least one recess (15) of the shoulder (13) such that the flat-shaped connection between the supporting surface and the shoulder (13), in the region of the recess (15), is interrupted in order to optimise the resistance to wear and tear of the base part (10).

Description

MeißelhaltersystemToolholder system
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 Steck- aufnähme 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. Das Basisteil hingegen muss vor Verschleißeinwirkung möglichst geschützt werden, da es das teure und nur mit hohem Montageaufwand zu ersetzen- de Teil des Meißelhaltersystems ist.Such a bit holder system is known from DE 43 22 401 A1. 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 housing 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. The base part, on the other hand, must be protected against wear as far as possible, since it is the expensive part of the chisel holder system that can only be replaced with a high level of assembly work.
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 dadurch gelöst, dass die Stützfläche im Übergangsbereich zu dem Absatz mittels wenigstens einer Vertiefung derart von dem Absatz abgesetzt ist, dass im Bereich der Vertiefung die flächenförmige Verbindung zwischen der Stützfläche und dem Absatz unterbrochen ist.This object is achieved in that the support surface is offset in the transition region to the paragraph by means of at least one recess of the paragraph that in the region of the depression, the sheet-like connection between the support surface and the paragraph is interrupted.
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 Aufla- gefläche 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 depression prevents burr formation on the base part, because the chisel holder protrudes above the support surface on the recess with its contact 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 einer bevorzugten Ausgestaltungsvariante der Erfindung ist es vorgesehen, dass die Vertiefung nutartig ausgebildet ist und einen sich in Richtung vertikal zur Stützfläche erstreckenden Rücksprung bildet. Die Vertiefung lässt sich einfach fertigen. Bevorzugt ist die Vertiefung im Nutgrund abgerundet; so dass die in das Basisteil eingebrachten Kerbspannungen minimiert werden.According to a preferred embodiment variant of the invention, it is provided that the recess is formed like a groove and forms a recess extending in the direction vertical to the support surface. 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 ein- fache 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. Thus, a 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 verhindert.In 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 AnIa- gefläche 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. 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 Steck- ansatzes optimal angepasst.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 extends outside the heel in this region surmounted. 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. 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 terminates 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 plug-in 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:The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:
Fig. 1 : Ein Basisteil eines Meißelhaltersystems in SeitenansichtFig. 1: A base part of a bit holder system in side view
Fig. 2: das Basisteil gem. Fig. 1 in perspektivischer Vorderansicht,Fig. 2: the base part acc. 1 in a perspective front view,
Fig. 3 in Seitenansicht einen Meißelhalter des-Meißelhaltersystems,3 is a side view of a bit holder of the chisel holder system,
Fig. 4 den Meißelhalter gemäß Fig. 3 in perspektivischer Ansicht von hinten,4 shows the bit holder of FIG. 3 in a perspective view from behind,
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.Fig. 5 is an assembly drawing with the components shown in FIGS. 1 to 4 and Fig. 6 is a marked in Fig. 5 with VI - VI cutting profile.
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.1 and 2 show a base part 10, which can be fastened with a curved connecting surface 11 on the outer circumference of a milling drum tube, for example 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 Querschnitts- dimensionierung 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 Querschnittser- Weiterung 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 shoulder 16.1 in the direction vertical to the support surface 12 has 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 Querschnittser- extension 14.1 and the paragraph 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 ange- passt ist. 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.FIGS. 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 the base body 22 and the skirt 28, there is a plug-in extension 21 whose cross-section is adapted to that of the plug-in receptacle 14 of the base part 10. As shown in FIG. 4 reveals, the plug-in approach 21 by means of a transition section 21.2 in the contact surface 27 of the base body 22 and a final surface 28.1 of the skirt 28 on.
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 approach 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 shown in FIG. 4, the plug 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.FIGS. 5 and 6 show the base part 10 and the bit holder 20 in the assembly 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 chisel holder 20 is, as shown in FIG. 6 clearly shows, 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

Ansprüche claims
1. Meißelhaltersystem mit einem Basisteil (10) und einem Meißelhalter (20), wobei das Basisteil (10) eine Steckaufnahme (14) aufweist, in die der Meißelhalter (20) mit einem Steckansatz (21) eingesetzt ist, wobei der Meißel- halter (20) mit einer Anlagefläche (27) an einer Stützfläche (12) des Basisteils (10) abgestützt ist, wobei das Basisteil (10) an die Stützfläche (12), anschließend einen Absatz (13) aufweist, und wobei zwischen dem Absatz (13) und einer zugekehrten Abschlussfläche (28.1) des Meißelhalters (20) ein Nachsetzraum gebildet ist, dadurch gekennzeichnet, dass die Stützfläche (12) im Übergangsbereich zu dem Absatz (13) mittels wenigstens einer Vertiefung (15) derart von dem Absatz (13) abgesetzt ist, dass im Bereich der Vertiefung (15) die flächenförmige Verbindung zwischen der Stützfläche (12) und dem Absatz (13) unterbrochen ist.1. chisel holder system comprising a base part (10) and a chisel holder (20), wherein the base part (10) has a plug receptacle (14) into which the chisel holder (20) with a plug projection (21) is inserted, wherein the chisel holder (20) with a contact surface (27) on a support surface (12) of the base part (10) is supported, wherein the base part (10) on the support surface (12), then a paragraph (13), and wherein between the paragraph ( 13) and a facing end surface (28.1) of the chisel holder (20) a Nachsetzraum is formed, characterized in that the support surface (12) in the transition region to the shoulder (13) by means of at least one recess (15) of the paragraph (13) discontinued, that in the region of the recess (15), the sheet-like connection between the support surface (12) and the shoulder (13) is interrupted.
2. Meißelhaltersystem nach Anspruch 1 , dadurch gekennzeichnet, dass die Vertiefung (15) nutartig ausgebildet ist und einen sich in Richtung vertikal zur Stützfläche (12) erstreckenden Rücksprung bildet. 2. chisel holder system according to claim 1, characterized in that the recess (15) is formed like a groove and forms in the direction vertical to the support surface (12) extending recess.
3. Meißelhaltersystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Anlagefläche (27) des Meißelhalters (20) die Stützfläche (12) des Basisteils (10) im Bereich der Vertiefung (15) überragt und dort endet.3. chisel holder system according to claim 1 or 2, characterized in that the contact surface (27) of the chisel holder (20) projects beyond the support surface (12) of the base part (10) in the region of the recess (15) and ends there.
4. Meißelhaltersystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Anlagefläche (27) des Meißelhalters (20) die Stützfläche (12) des Basisteils (10) allseitig überragt.4. chisel holder system according to one of claims 1 to 3, characterized in that the contact surface (27) of the chisel holder (20) projects beyond the support surface (12) of the base part (10) on all sides.
5. Meißelhaltersystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Stützfläche (12) des Basisteils (10) von einem Absatz (16.1) gebildet ist, dessen parallel zur Stützfläche (12) verlaufende Querschnittsdi- mensionierung zumindest in dem an die Stützfläche (12) anschließenden5. chisel holder system according to one of claims 1 to 4, characterized in that the support surface (12) of the base part (10) by a shoulder (16.1) is formed, the parallel to the support surface (12) extending cross-sectional dimensioning at least in that of the Support surface (12) adjoining
Bereich kleiner oder gleich der Anlagefläche (27) ist, so dass die Anlagefläche (27) den Absatz (16.1) in diesem Bereich außenseitig überragt.Area is less than or equal to the contact surface (27), so that the contact surface (27) projects beyond the shoulder (16.1) in this area on the outside.
6. Meißelhaltersystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Steckaufnahme (14) an ihrem, dem Meißelhalter (20) zugekehrten Ende in einer Querschnittserweiterung (14.1) ausläuft, dass die Vertiefung (15) im Bereich dieser Querschnittserweiterung (14.1) ausläuft, und dass der Meißelhalter (20) mit einem Übergangsabschnitt (21.2) in die6. chisel holder system according to one of claims 1 to 6, characterized in that the plug receptacle (14) at its, the bit holder (20) facing end in a cross-sectional widening (14.1) expires, that the recess (15) in the region of this cross-sectional widening (14.1 ), and that the bit holder (20) with a transition section (21.2) in the
Querschnittserweiterung (14.1) eingreift, wobei der Übergangsabschnitt (21.2) den Steckansatz (21) in die Auflagefläche (27) überleitet. Cross-sectional enlargement (14.1) engages, wherein the transition section (21.2) the plug-in extension (21) in the bearing surface (27) passes.
7. Meißelhaltersystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Meißelhalter (20) im Bereich der Anlagefläche (27) eine geringere Härte, als die Stützfläche (12) des Basisteils (10) aufweist. 7. chisel holder system according to one of claims 1 to 6, characterized in that the bit holder (20) in the region of the contact surface (27) has a lower hardness than the support 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 true EP1851411A1 (en) 2007-11-07
EP1851411B1 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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Also Published As

Publication number Publication date
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
EP1851411B1 (en) 2013-04-24
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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