EP2545996B1 - Outil d'accélération et profil de centrifugation pour un concasseur à percussion rotatif - Google Patents

Outil d'accélération et profil de centrifugation pour un concasseur à percussion rotatif Download PDF

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Publication number
EP2545996B1
EP2545996B1 EP12005105.7A EP12005105A EP2545996B1 EP 2545996 B1 EP2545996 B1 EP 2545996B1 EP 12005105 A EP12005105 A EP 12005105A EP 2545996 B1 EP2545996 B1 EP 2545996B1
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EP
European Patent Office
Prior art keywords
acceleration
tool according
hard material
material elements
support surface
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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
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EP12005105.7A
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German (de)
French (fr)
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EP2545996A3 (en
EP2545996A2 (en
Inventor
Bernhard Moosmann
Heiko Friederichs
Baris Irmak
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Betek GmbH and Co KG
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Betek GmbH and Co KG
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Priority to PL12005105T priority Critical patent/PL2545996T3/en
Publication of EP2545996A2 publication Critical patent/EP2545996A2/en
Publication of EP2545996A3 publication Critical patent/EP2545996A3/en
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Publication of EP2545996B1 publication Critical patent/EP2545996B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor

Definitions

  • the invention relates to an acceleration tool for a rotary impact crusher.
  • the invention further relates to a spin profile for a rotary impact crusher with a carrier, which has a fastening side, and with a baffle surface, which has at least partially hard material elements.
  • Rotary impact crushers are used for crushing rock material.
  • the rock material to be crushed is filled into a crushing chamber via a hopper.
  • the crushing room is a turntable with spin profiles.
  • the turntable rotates at high speed and hurls the rock material radially outward.
  • In the crushing chamber are the turntable opposite baffles arranged to hit the ejected stone parts. Due to the high kinetic energy, the individual stones split on the impact jaws. Due to the high acceleration and swirling of stone parts, the spin profiles are exposed to high wear, and must therefore be replaced at regular intervals. Particularly in the case of strongly sand-containing rocks, high abrasive wear is produced on the spin profiles.
  • US 2003/0213861 A1 discloses an impact crusher in which centrifugal tools are installed.
  • the centrifugal tools have a shoe.
  • a shield is attached to the shoe.
  • the shield has on its top a coating with hard particles.
  • the object of the invention is achieved with an acceleration tool which forms an acceleration insert.
  • This has a support body on a Support surface on. On the side facing away from the support surface an acceleration surface is formed, which is equipped with hard material elements.
  • the acceleration insert thus forms an exchange tool that can be mounted on its support surface on a support.
  • the hard material elements are arranged in mutually parallel rows. As a result, a segmentation of the hard material elements is achieved, so that the risk of breakage of these components is significantly reduced.
  • the hard material elements of adjacent rows have depressions, and that the depressions merge directly or indirectly into one another. In this way, with the wells discharge lines are created, which allow easier removal of material.
  • spacing regions are formed between the rows of hard material elements, wherein the spacing regions are set back at least in regions relative to the acceleration surface formed by the hard material elements.
  • the spacing areas thus form pocket-shaped areas into which breakage material can enter.
  • An acceleration tool according to the invention may be such that the acceleration surface is inclined relative to the support surface.
  • a fixing projection may project beyond the support surface in the region of the support surface.
  • the Fixieransatz can be used in conjunction with a corresponding counter element of a carrier for safe positioning of the crusher tool.
  • transverse forces can be reliably absorbed via the fixing attachment or the fixing attachment.
  • the assembly of the crusher tool is simplified to a carrier.
  • the fixing extension is provided on opposite sides with convex walls which are connected to each other directly or indirectly via opposite concave walls.
  • a screw receptacle is furthermore arranged in the region of the fixing attachment.
  • the Fixieransatz can be positively supported in a corresponding counter-element of the carrier, so that the guided in the screw holder screw of shear forces and thus shear stress is exempted.
  • the acceleration insert has at least two partial acceleration bodies which can be joined to one another by means of bracing surfaces. In this way, a segmentation is achieved, which takes into account the different wear intensity. Accordingly, the two partial acceleration bodies can be exchanged separately, depending on which of the two partial acceleration bodies reaches the wear limit earlier.
  • a further optimization of wear is achieved when the acceleration surfaces of the two partial acceleration body merge into each other, and in each case at the same angle inclined to the support surface.
  • a series of hard material elements terminates directly in the region of the baying surfaces.
  • a further protection against wear of the acceleration tool can be achieved if it is provided that a row of hard material elements is arranged on at least one side wall which adjoins the two front sides at an angle.
  • the side wall directed towards the center axis of the turntable is particularly preferably protected, via which the rock material to be comminuted is accelerated or is swirled around by stone parts.
  • the acceleration insert carries an apron, which protrudes from the rear over the supporting surface.
  • This apron can be occupied in particular with hard material elements.
  • FIG. 1 shows a spin profile consisting of a carrier 10 and acceleration tool consisting of two partial acceleration bodies 21, 24. These two partial acceleration body 21, 24 together form an acceleration insert 20.
  • the carrier 10 is substantially plate-shaped and has a mounting side 11 and opposite one Counter surface 12 on.
  • the attachment side 11 is arranged parallel to the mating surface 12.
  • FIG. 2 can be seen, four through holes are introduced as fastening receptacles 14 in the carrier 10. These fastening receptacles 14 have a depression, so that they can receive the head of screws 17, which are guided through the fastening receptacles 14, sunk.
  • a fastening lug 15 is integrally formed on the attachment side 11. This attachment lug 15 is penetrated by a bore 16.
  • On the mounting side 11 is followed by a circular rising and right angles to a side wall 13 at. The side wall 13 merges into the front-side mating surface 12.
  • the counter surface 12 has two recessed Fixieragen 18.
  • These fixing receptacles 18 have the shape of a chain link and accordingly have on opposite sides concave Einmuldungen 18.1, which merge into one another via convex recesses 18.2.
  • the Fixiernessn 18 serve for positioning and exact alignment of the partial acceleration body 21, 24th
  • the partial acceleration body 21, 24 each have a support body 22.1, 24.1. From the back of the support body 22.1, 24.1 is in each case before a fixing neck 22.5.
  • the outer contour of the Fixieransatzes 22.5 is adapted to the internal geometry of the Fixierfact 18 in the carrier 10. Accordingly, the fixing projections 22.5 have convex walls 22.6 on opposite sides. The convex walls 22.6 merge into one another via concave walls 22.7.
  • the fixing lugs 22.5 directly to the support surfaces 22.2 and 24.2 of the partial acceleration body 21, 24 are formed.
  • the support body 22.1, 24.1 equipped with an inclined, to the support surface 22.2, 24.2 angularly standing acceleration surface.
  • this acceleration surface strip-shaped pockets are milled, which are spaced apart by webs.
  • the webs form spacer regions 25.
  • Hard material elements 23, namely hard metal elements, are soldered into the strip-shaped cutouts.
  • FIG. 1 can recognize a plurality of hard material elements 23 are lined up, so that a segmentation is made in favor of a reduced risk of breakage.
  • Each hard material element 23 has a roof-shaped geometry for forming the acceleration surface, 23 recesses 23.1 being formed between the individual hard material elements.
  • the depressions 23.1 of the adjacent rows of hard material elements 23 merge into one another in a line, so that discharge channels result.
  • the acceleration insert 20 in the present case is formed from two partial acceleration bodies 21, 24, wherein the partial acceleration bodies 21, 24 form plane Anreihdon 22.3, 24.3, where they can be put together.
  • the lower partial acceleration body 24 carries a welded-on apron 30.
  • This skirt 30 forms a projection 31 which projects beyond the rear side of the support surface 24.2.
  • the projection 31 On its side facing outward, the projection 31 with juxtaposed hard material elements 32, in the present case Hard metal blades, protected against wear.
  • the hard material elements 32 are soldered to the projection 31.
  • a side wall 24.4 of the partial acceleration body 24 is also covered with a series of hard material elements 26, these hard material elements 32 being soldered into a strip-shaped cutout in the side wall 24.4.
  • the partial acceleration body 21, 24 of the acceleration insert 20 with its fixing lugs 22. 5 are inserted into the fixing receptacles 18. Subsequently, the screws 17 are passed through the fastening receptacles 14 and screwed into the screw receptacles 22.5 of the support body 22.1, 24.1. In the assembled state, the two partial acceleration bodies 21, 24 completely cover the opposing surface 12.
  • the apron 30 covers the subsequent side surface of the carrier 10.
  • a chamfer 13.1 is recessed on the carrier 10.
  • the fully assembled acceleration profile can be used with its attachment lug 15 in a corresponding receptacle of a rotary impact crusher. Subsequently, a cylindrical pin is passed through the bore 16 in order to securely fix the spin profile to a spin table (not shown).

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

Die Erfindung betrifft ein Beschleunigungswerkzeug für einen Rotationsprallbrecher.The invention relates to an acceleration tool for a rotary impact crusher.

Die Erfindung betrifft weiterhin ein Schleuderprofil für einen Rotationsprallbrecher mit einem Träger, der eine Befestigungsseite aufweist, und mit einer Prallfläche, die zumindest bereichsweise Hartstoffelemente aufweist.The invention further relates to a spin profile for a rotary impact crusher with a carrier, which has a fastening side, and with a baffle surface, which has at least partially hard material elements.

Rotationsprallbrecher dienen zur Zerkleinerung von Gesteinsmaterial. Dabei wird über einen Einfülltrichter das zu zerkleinernde Gesteinsmaterial in einen Brechraum eingefüllt. Im Brechraum befindet sich ein Drehtisch mit Schleuderprofilen. Der Drehtisch dreht mit großer Geschwindigkeit und schleudert das Gesteinsmaterial radial nach außen. Im Brechraum sind dem Drehtisch gegenüberliegend Prallbacken angeordnet, auf die die ausgeschleuderten Steinteile treffen. Aufgrund der hohen kinetischen Energie zerteilen sich die einzelnen Steine an den Prallbacken. Durch die hohe Beschleunigung und das herumwirbeln von Steinteilen sind die Schleuderprofile einem hohen Verschleiß ausgesetzt, und müssen daher in regelmäßigen Abständen getauscht werden. Insbesondere bei stark sandhaltigen Gesteinen entsteht ein hoher abrasiver Verschleiß an den Schleuderprofilen.Rotary impact crushers are used for crushing rock material. In this case, the rock material to be crushed is filled into a crushing chamber via a hopper. In the crushing room is a turntable with spin profiles. The turntable rotates at high speed and hurls the rock material radially outward. In the crushing chamber are the turntable opposite baffles arranged to hit the ejected stone parts. Due to the high kinetic energy, the individual stones split on the impact jaws. Due to the high acceleration and swirling of stone parts, the spin profiles are exposed to high wear, and must therefore be replaced at regular intervals. Particularly in the case of strongly sand-containing rocks, high abrasive wear is produced on the spin profiles.

US 2003/0213861 A1 offenbart einen Prallbrecher, in dem Schleuderwerkzeuge verbaut sind. Die Schleuderwerkzeuge weisen einen Schuh auf. An dem Schuh ist ein Schild befestigt. Das Schild besitzt auf seiner Oberseite eine Beschichtung mit Hartstoff-Partikeln. US 2003/0213861 A1 discloses an impact crusher in which centrifugal tools are installed. The centrifugal tools have a shoe. A shield is attached to the shoe. The shield has on its top a coating with hard particles.

Es ist Aufgabe der Erfindung, ein Beschleunigungswerkzeug, insbesondere ein Schleuderprofil der oben erwähnten Art zu schaffen, wobei eine verschleißoptimierte Gestaltung erreicht ist.It is an object of the invention to provide an acceleration tool, in particular a spin profile of the type mentioned above, wherein a wear-optimized design is achieved.

Die Aufgabe der Erfindung wird mit einem Beschleunigungswerkzeug gelöst, das einen Beschleunigungseinsatz bildet. Dieser weist an einem Tragkörper eine Stützfläche auf. Auf der der Stützfläche abgewandten Frontseite ist eine Beschleunigungsfläche gebildet, die mit Hartstoffelementen bestückt ist. Der Beschleunigungseinsatz bildet mithin ein Wechselwerkzeug, das über seine Stützfläche an einem Träger angebaut werden kann. Mithin muss somit bei Erreichen der Verschleißgrenze nicht mehr das gesamte Schleuderprofil getauscht werden, sondern es reicht völlig, wenn der verschlissene Beschleunigungseinsatz getauscht wird. Hierdurch wird eine Material sparende Betriebsweise möglich, denn die dem Träger zugeordneten Materialteile können an der Maschine verbleiben.The object of the invention is achieved with an acceleration tool which forms an acceleration insert. This has a support body on a Support surface on. On the side facing away from the support surface an acceleration surface is formed, which is equipped with hard material elements. The acceleration insert thus forms an exchange tool that can be mounted on its support surface on a support. Thus, when the wear limit is reached, it is no longer necessary to replace the entire centrifugal profile, but it is completely sufficient if the worn-out acceleration insert is exchanged. As a result, a material-saving operation is possible, because the carrier associated material parts can remain on the machine.

Darüber hinaus ist auch eine verschleißoptimierte Auslegung des Brecherwerkzeuges erreicht, da im Bereich der Beschleunigungsfläche eine Bestückung mit Hartstoffelementen vorgenommen ist.In addition, a wear-optimized design of the crusher tool is achieved because in the area of the acceleration surface is equipped with hard material elements.

Gemäß einer bevorzugten Erfindungsausgestaltung ist es vorgesehen, dass die Hartstoffelemente in zueinander parallelen Reihen angeordnet sind. Hierdurch wird eine Segmentierung der Hartstoffelemente erreicht, sodass die Bruchgefahr dieser Bauteile deutlich verringert ist.According to a preferred embodiment of the invention, it is provided that the hard material elements are arranged in mutually parallel rows. As a result, a segmentation of the hard material elements is achieved, so that the risk of breakage of these components is significantly reduced.

Hierbei kann es insbesondere vorgesehen sein, dass die Hartstoffelemente benachbarter Reihen Vertiefungen aufweisen, und dass die Vertiefungen mittelbar oder unmittelbar ineinander übergehen. Auf diese Weise werden mit den Vertiefungen Ableitlinien geschaffen, die einen einfacheren Materialabtransport ermöglichen.In this case, it can be provided, in particular, that the hard material elements of adjacent rows have depressions, and that the depressions merge directly or indirectly into one another. In this way, with the wells discharge lines are created, which allow easier removal of material.

Besonders bevorzugt kann es vorgesehen sein, dass zwischen den Reihen von Hartstoffelementen Abstandsbereiche gebildet sind, wobei die Abstandsbereiche gegenüber der von den Hartstoffelementen gebildeten Beschleunigungsfläche zumindest bereichsweise zurückversetzt sind. Die Abstandsbereiche bilden mithin taschenförmige Bereiche, in die sich Bruchmaterial einsetzen kann. Hierdurch wird eine Art natürlicher Verschleißschutz erreicht.Particularly preferably, it can be provided that spacing regions are formed between the rows of hard material elements, wherein the spacing regions are set back at least in regions relative to the acceleration surface formed by the hard material elements. The spacing areas thus form pocket-shaped areas into which breakage material can enter. As a result, a kind of natural wear protection is achieved.

Ein erfindungsgemäßes Beschleunigungswerkzeug kann dergestalt sein, dass die Beschleunigungsfläche gegenüber der Stützfläche geneigt ist. Über diese winklige Anstellung wird die kinetische Energie des zu verkleinernden Gesteins ideal in Zerkleinerungsleistung umgewandelt.An acceleration tool according to the invention may be such that the acceleration surface is inclined relative to the support surface. Through this angular employment, the kinetic energy of the rock to be reduced is ideally converted into comminution performance.

Erfindungsgemäß ist es vorgesehen sein, dass im Bereich der Stützfläche ein Fixieransatz über die Stützfläche vorsteht. Der Fixieransatz kann in Verbindung mit einem entsprechenden Gegenelement eines Trägers zur sicheren Positionierung des Brecherwerkzeuges verwendet werden. Über den Fixieransatz beziehungsweise die Fixieraufnahme lassen sich insbesondere Querkräfte sicher abfangen. Darüber hinaus wird die Montage des Brecherwerkzeuges an einem Träger vereinfacht.According to the invention, provision may be made for a fixing projection to project beyond the support surface in the region of the support surface. The Fixieransatz can be used in conjunction with a corresponding counter element of a carrier for safe positioning of the crusher tool. In particular, transverse forces can be reliably absorbed via the fixing attachment or the fixing attachment. In addition, the assembly of the crusher tool is simplified to a carrier.

Hierbei ist es insbesondere vorgesehen, dass der Fixieransatz an gegenüberliegenden Seiten mit konvexen Wandungen ausgestattet ist, die mittelbar oder unmittelbar über gegenüberliegende konkave Wandungen miteinander verbunden sind. Mit dieser Gestaltung kann eine passgenaue Positionierung des Brecherwerkzeuges erreicht werden. Darüber hinaus wird mit dieser Gestaltung eine Art Schlüssel-Schloss-Prinzip gebildet, das die Fehlmontage eines falschen Werkzeuges verhindern hilft.In this case, it is provided in particular that the fixing extension is provided on opposite sides with convex walls which are connected to each other directly or indirectly via opposite concave walls. With this design, a tailor-made positioning of the crusher tool can be achieved. In addition, with this design, a kind of key-lock principle is formed, which helps prevent the incorrect installation of a wrong tool.

Erfindungsgemäß ist weiterhin im Bereich des Fixieransatzes eine Schraubaufnahme angeordnet. Der Fixieransatz kann in einem entsprechenden Gegenelement des Trägers formschlüssig abgestützt werden, sodass die in der Schraubaufnahme geführte Schraube von Querkräften und somit Scherbeanspruchungen freigestellt ist.According to the invention, a screw receptacle is furthermore arranged in the region of the fixing attachment. The Fixieransatz can be positively supported in a corresponding counter-element of the carrier, so that the guided in the screw holder screw of shear forces and thus shear stress is exempted.

Besonders bevorzugt weist der Beschleunigungseinsatz mindestens zwei Teil-Beschleunigungskörper auf, die über Anreihflächen aneinander fügbar sind. Auf diese Weise wird eine Segmentierung erreicht, die der unterschiedlichen Verschleißintensität Rechnung trägt. Dementsprechend lassen sich die beiden Teil-Beschleunigungskörper getrennt voneinander austauschen, je nachdem, welcher der beiden Teil-Beschleunigungskörper früher die Verschleißgrenze erreicht.Particularly preferably, the acceleration insert has at least two partial acceleration bodies which can be joined to one another by means of bracing surfaces. In this way, a segmentation is achieved, which takes into account the different wear intensity. Accordingly, the two partial acceleration bodies can be exchanged separately, depending on which of the two partial acceleration bodies reaches the wear limit earlier.

Eine weitere Verschleißoptimierung wird dabei dann erreicht, wenn die Beschleunigungsflächen der beiden Teil-Beschleunigungskörper ineinander übergehen, und jeweils im gleichen Winkel geneigt zur Stützfläche verlaufen.A further optimization of wear is achieved when the acceleration surfaces of the two partial acceleration body merge into each other, and in each case at the same angle inclined to the support surface.

Zum Schutz der Teil-Beschleunigungskörper im Anreihbereich kann es erfindungsgemäß vorgesehen sein, dass im Bereich der Anreihflächen unmittelbar eine Reihe von Hartstoffelementen abschließt.In order to protect the partial acceleration body in the baying region, it can be provided according to the invention that a series of hard material elements terminates directly in the region of the baying surfaces.

Ein weiterer Verschleißschutz des Beschleunigungswerkzeuges kann erreicht werden, wenn vorgesehen ist, dass an wenigstens einer an die beiden Frontseiten im Winkel anschließenden Seitenwände eine Reihe von Hartstoffelementen angeordnet ist. Besonders bevorzugt wird dabei die zur Mittelachse des Drehtisches gerichtete Seitenwand geschützt, über die das zu zerkleinernde Gesteinsmaterial beschleunigt wird bzw. von Steinteilen umwirbelt wird.A further protection against wear of the acceleration tool can be achieved if it is provided that a row of hard material elements is arranged on at least one side wall which adjoins the two front sides at an angle. In this case, the side wall directed towards the center axis of the turntable is particularly preferably protected, via which the rock material to be comminuted is accelerated or is swirled around by stone parts.

Um den Träger, der das Beschleunigungswerkzeug trägt, vor dem abfließenden Gesteinsmaterial zu schützen, kann es vorgesehen sein, dass der Beschleunigungseinsatz eine Schürze trägt, die rückseitig über die Stützfläche vorsteht. Diese Schürze kann insbesondere mit Hartstoffelementen besetzt sein.In order to protect the carrier, which carries the accelerating tool, from the outflowing rock material, it may be provided that the acceleration insert carries an apron, which protrudes from the rear over the supporting surface. This apron can be occupied in particular with hard material elements.

Die Aufgabe der Erfindung betreffend das Schleuderprofil für einen Rotationsprallbrecher wird dadurch gelöst, dass an dem Träger ein Beschleunigungseinsatz auswechselbar befestigbar ist. Die Vorteile dieser Konstruktion sind vorstehend bereits erläutert worden.The object of the invention concerning the spin profile for a rotary impact crusher is achieved in that an acceleration insert is replaceably fastened to the carrier. The advantages of this construction have already been explained above.

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

Figur 1
in perspektivischer Explosionsdarstellung und in Frontansicht eines Schleuderprofils; und
Figur 2
das Schleuderprofil gemäß Figur 1 in Rückansicht.
The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:
FIG. 1
in a perspective exploded view and in front view of a spin profile; and
FIG. 2
the spin profile according to FIG. 1 in rear view.

Figur 1 zeigt ein Schleuderprofil bestehend aus einem Träger 10 und Beschleunigungswerkzeug bestehend aus zwei Teil-Beschleunigungskörpern 21, 24. Diese beiden Teil-Beschleunigungskörper 21, 24 bilden gemeinsam einen Beschleunigungseinsatz 20. Der Träger 10 ist im Wesentlichen plattenförmig ausgebildet und weist eine Befestigungsseite 11 und gegenüberliegend eine Gegenfläche 12 auf. Die Befestigungsseite 11 ist parallel zu der Gegenfläche 12 angeordnet. Wie Figur 2 erkennen lässt, sind in den Träger 10 vier Durchgangsbohrungen als Befestigungsaufnahmen 14 eingebracht. Diese Befestigungsaufnahmen 14 weisen eine Einsenkung auf, sodass sie den Kopf von Schrauben 17, die durch die Befestigungsaufnahmen 14 hindurch geführt sind, versenkt aufnehmen können. Rückseitig ist an die Befestigungsseite 11 ein Befestigungsansatz 15 einteilig angeformt. Dieser Befestigungsansatz 15 ist von einer Bohrung 16 durchdrungen. An die Befestigungsseite 11 schließt sich umlaufend aufsteigend und rechtwinklig eine Seitenwand 13 an. Die Seitenwand 13 geht in die frontseitige Gegenfläche 12 über. FIG. 1 shows a spin profile consisting of a carrier 10 and acceleration tool consisting of two partial acceleration bodies 21, 24. These two partial acceleration body 21, 24 together form an acceleration insert 20. The carrier 10 is substantially plate-shaped and has a mounting side 11 and opposite one Counter surface 12 on. The attachment side 11 is arranged parallel to the mating surface 12. As FIG. 2 can be seen, four through holes are introduced as fastening receptacles 14 in the carrier 10. These fastening receptacles 14 have a depression, so that they can receive the head of screws 17, which are guided through the fastening receptacles 14, sunk. On the back side, a fastening lug 15 is integrally formed on the attachment side 11. This attachment lug 15 is penetrated by a bore 16. On the mounting side 11 is followed by a circular rising and right angles to a side wall 13 at. The side wall 13 merges into the front-side mating surface 12.

Die Darstellung der Figur 1 lässt die Gestaltung der Gegenfläche 12 näher erkennen. Dementsprechend weist die Gegenfläche 12 zwei eingetiefte Fixieraufnahmen 18 auf. Diese Fixieraufnahmen 18 haben die Form eines Kettengliedes und weisen dementsprechend an gegenüberliegenden Seiten konkave Einmuldungen 18.1 auf, die über konvexe Einziehungen 18.2 ineinander übergehen. Jeweils im Bereich der konkaven Einmuldungen 18.1 münden die Befestigungsaufnahmen 14. Die Fixieraufnahmen 18 dienen zur Positionierung und exakten Ausrichtung des Teil-Beschleunigungskörpers 21, 24.The presentation of the FIG. 1 lets the design of the counter surface 12 recognize closer. Accordingly, the counter surface 12 has two recessed Fixieraufnahmen 18. These fixing receptacles 18 have the shape of a chain link and accordingly have on opposite sides concave Einmuldungen 18.1, which merge into one another via convex recesses 18.2. Each in the region of the concave Einmuldungen 18.1 open the mounting receptacles 14. The Fixieraufnahmen 18 serve for positioning and exact alignment of the partial acceleration body 21, 24th

Wie die Figur 2 erkennen lässt, weisen die Teil-Beschleunigungskörper 21, 24 jeweils einen Tragkörper 22.1, 24.1 auf. Von der Rückseite des Tragkörpers 22.1, 24.1 steht jeweils ein Fixieransatz 22.5 vor. Die Außenkontur des Fixieransatzes 22.5 ist auf die Innengeometrie der Fixieraufnahme 18 im Träger 10 angepasst ausgebildet. Dementsprechend weisen die Fixieransätze 22.5 konvexe Wandungen 22.6 an gegenüberliegenden Seiten auf. Die konvexen Wandungen 22.6 gehen über konkave Wandungen 22.7 ineinander über. Wie die Figur 2 deutlich erkennen lässt, sind die Fixieransätze 22.5 unmittelbar an die Stützflächen 22.2 beziehungsweise 24.2 der Teil-Beschleunigungskörper 21, 24 angeformt. Auf der der Stützfläche 22.2, 24.2 gegenüberliegenden Seite sind die Tragkörper 22.1, 24.1 mit einer geneigten, zu der Stützfläche 22.2, 24.2 im Winkel stehenden Beschleunigungsfläche ausgestattet. In diese Beschleunigungsfläche sind streifenförmige Taschen eingefräst, die über Stege zueinander beabstandet sind. Dementsprechend bilden die Stege Abstandsbereiche 25. In die streifenförmigen Ausfräsungen sind Hartstoffelemente 23, nämlich Hartmetallelemente, eingelötet.As the FIG. 2 can recognize, the partial acceleration body 21, 24 each have a support body 22.1, 24.1. From the back of the support body 22.1, 24.1 is in each case before a fixing neck 22.5. The outer contour of the Fixieransatzes 22.5 is adapted to the internal geometry of the Fixieraufnahme 18 in the carrier 10. Accordingly, the fixing projections 22.5 have convex walls 22.6 on opposite sides. The convex walls 22.6 merge into one another via concave walls 22.7. As the FIG. 2 clearly shows, the fixing lugs 22.5 directly to the support surfaces 22.2 and 24.2 of the partial acceleration body 21, 24 are formed. On the support surface 22.2, 24.2 opposite side, the support body 22.1, 24.1 equipped with an inclined, to the support surface 22.2, 24.2 angularly standing acceleration surface. In this acceleration surface strip-shaped pockets are milled, which are spaced apart by webs. Correspondingly, the webs form spacer regions 25. Hard material elements 23, namely hard metal elements, are soldered into the strip-shaped cutouts.

Wie Figur 1 erkennen lässt, sind dabei eine Vielzahl von Hartstoffelementen 23 aneinandergereiht, sodass zugunsten einer reduzierten Bruchgefahr eine Segmentierung vorgenommen ist. Jedes Hartstoffelement 23 weist zur Bildung der Beschleunigungsfläche eine dachförmige Geometrie auf, wobei zwischen den einzelnen Hartstoffelementen 23 Vertiefungen 23.1 gebildet sind. Die Vertiefungen 23.1 der benachbarten Reihen von Hartstoffelementen 23 gehen linienförmig ineinander über, sodass sich Ableitkanäle ergeben. Zwischen den Reihen von Hartstoffelementen 23 und auf den die Abstandsbereiche 25 bildenden Stegen werden Verschleißtaschen gebildet, in die sich gebrochenes Material einlagern kann. Auf diese Weise wird zwischen den Hartstoffelementen 23 ein "natürlicher" Verschleißschutz erreicht.As FIG. 1 can recognize a plurality of hard material elements 23 are lined up, so that a segmentation is made in favor of a reduced risk of breakage. Each hard material element 23 has a roof-shaped geometry for forming the acceleration surface, 23 recesses 23.1 being formed between the individual hard material elements. The depressions 23.1 of the adjacent rows of hard material elements 23 merge into one another in a line, so that discharge channels result. Between the rows of hard material elements 23 and on the spacer regions 25 forming webs wear pockets are formed, in which can store broken material. In this way, a "natural" wear protection is achieved between the hard material elements 23.

Wie bereits vorstehend erwähnt wurde, wird der Beschleunigungseinsatz 20 vorliegend aus zwei Teil-Beschleunigungskörpern 21, 24 gebildet, wobei die Teil-Beschleunigungskörper 21, 24 plane Anreihflächen 22.3, 24.3 bilden, an denen sie aneinandergesetzt werden können.As already mentioned above, the acceleration insert 20 in the present case is formed from two partial acceleration bodies 21, 24, wherein the partial acceleration bodies 21, 24 form plane Anreihflächen 22.3, 24.3, where they can be put together.

Der in Figur 1 unten liegende Teil-Beschleunigungskörper 24 trägt eine angeschweißte Schürze 30. Diese Schürze 30 bildet einen Ansatz 31, der rückseitig über die Stützfläche 24.2 vorsteht. An seiner nach außen gekehrten Seite ist der Ansatz 31 mit aneinandergereihten Hartstoffelementen 32, vorliegend Hartmetallblättchen, vor Verschleiß geschützt. Die Hartstoffelemente 32 sind mit dem Ansatz 31 verlötet. Oberhalb der Schürze 30 ist eine Seitenwand 24.4 des Teil-Beschleunigungskörpers 24 ebenfalls mit einer Reihe von Hartstoffelementen 26 belegt, wobei diese Hartstoffelemente 32 in eine streifenförmige Ausfräsung in der Seitenwand 24.4 eingelötet sind.The in FIG. 1 The lower partial acceleration body 24 carries a welded-on apron 30. This skirt 30 forms a projection 31 which projects beyond the rear side of the support surface 24.2. On its side facing outward, the projection 31 with juxtaposed hard material elements 32, in the present case Hard metal blades, protected against wear. The hard material elements 32 are soldered to the projection 31. Above the skirt 30, a side wall 24.4 of the partial acceleration body 24 is also covered with a series of hard material elements 26, these hard material elements 32 being soldered into a strip-shaped cutout in the side wall 24.4.

Zur Montage des Schleuderprofils werden die Teil-Beschleunigungskörpers 21, 24 des Beschleunigungseinsatzes 20 mit ihren Fixieransätzen 22.5 in die Fixieraufnahmen 18 eingesetzt. Anschließend werden die Schrauben 17 durch die Befestigungsaufnahmen 14 hindurchgeführt und in die Schraubaufnahmen 22.5 der Tragkörper 22.1, 24.1 eingeschraubt. Im montierten Zustand decken die beiden Teil-Beschleunigungskörper 21, 24 die Gegenfläche 12 vollständig ab. Die Schürze 30 überdeckt die anschließende Seitenfläche des Trägers 10. Zur Aufnahme der Schweißnaht, die die Schürze 30 mit dem Teil-Beschleunigungskörper 24 verbindet, ist eine Fase 13.1 am Träger 10 ausgespart. Das fertig montierte Beschleunigungsprofil kann mit seinem Befestigungsansatz 15 in eine entsprechende Aufnahme eines Rotationsprallbrechers eingesetzt werden. Anschließend wird ein Zylinderstift durch die Bohrung 16 hindurchgesetzt, um das Schleuderprofil an einem Schleudertisch (nicht dargestellt) sicher zu fixieren.To assemble the spin profile, the partial acceleration body 21, 24 of the acceleration insert 20 with its fixing lugs 22. 5 are inserted into the fixing receptacles 18. Subsequently, the screws 17 are passed through the fastening receptacles 14 and screwed into the screw receptacles 22.5 of the support body 22.1, 24.1. In the assembled state, the two partial acceleration bodies 21, 24 completely cover the opposing surface 12. The apron 30 covers the subsequent side surface of the carrier 10. To accommodate the weld, which connects the skirt 30 with the partial acceleration body 24, a chamfer 13.1 is recessed on the carrier 10. The fully assembled acceleration profile can be used with its attachment lug 15 in a corresponding receptacle of a rotary impact crusher. Subsequently, a cylindrical pin is passed through the bore 16 in order to securely fix the spin profile to a spin table (not shown).

Claims (12)

  1. An acceleration tool for a rotary impact crusher, comprising an acceleration insert (20) which has a support surface (22.2, 24.2) on a carrier body (22.1), wherein an acceleration surface is formed on the front side facing away from the support surface (22.2, 24.2), said acceleration surface being equipped with hard material elements (23) and
    wherein a fixing shoulder (22.5) protrudes beyond the support surface (22.2, 24.2) in the region of the support surface (22.2, 24.2),
    characterised in that
    the fixing shoulder (22.5) is provided with convex walls (22.6) on opposite sides, said walls being connected to each other indirectly or directly via opposite concave walls (22.7),
    and that a screw receptacle (22.8) is arranged in the region of the fixing shoulder (22.5).
  2. The acceleration tool according to claim 1,
    characterised in that
    the hard material elements (23) are arranged in parallel rows with respect to each other.
  3. The acceleration tool according to claim 2,
    characterised in that
    the hard material elements (23) of adjacent rows have recesses (23.1), and
    that the recesses (23.1) merge indirectly or directly into one another.
  4. The acceleration tool according to any one of claims 2 to 3,
    characterised in that
    space regions (25) are formed between the rows of hard material elements (23), wherein the space regions (25) at least in some regions are set back in relation to the acceleration surface formed by the hard material elements (23).
  5. The acceleration tool according to any one of claims 1 to 4,
    characterised in that
    the acceleration surface is inclined in relation to the support surface (22.2, 24.2).
  6. The acceleration tool according to any one of claims 1 to 5,
    characterised in that
    the acceleration insert (20) has at least two partial acceleration bodies (21, 24) which can be joined to one another, in particular via aligning surfaces (22.3, 24.3).
  7. The acceleration tool according to claim 6,
    characterised in that
    the acceleration surfaces of the two partial acceleration bodies (21, 24) merge into one another and each extend at the same angle in an inclined manner with respect to the support surface (22.2, 24.2).
  8. The acceleration tool according to one of claims 6 or 7,
    characterised in that
    a row of hard material elements (26) immediately ends in the region of the aligning surfaces (22.3., 24.3) of the partial acceleration bodies (21, 24).
  9. The acceleration tool according to any one of claims 1 to 8,
    characterised in that
    a row of hard material elements (26) is arranged on at least one side wall (22.4, 24.4) adjoining the front side at an angle.
  10. The acceleration tool according to any one of claims 1 to 9,
    characterised in that
    the acceleration insert (20) carries an apron (30) which protrudes at the rear side beyond the support surface (22.4, 24.4).
  11. The acceleration tool according to claim 10,
    characterised in that
    the apron (30) is equipped with hard material elements (32).
  12. A spin profile for a rotary impact crusher comprising an acceleration tool according to any one of claims 1 to 11 and a carrier (10),
    wherein the carrier (10) has a fastening side (11), and wherein the acceleration insert (20) is replaceably fastened to the carrier (10).
EP12005105.7A 2011-07-11 2012-07-10 Outil d'accélération et profil de centrifugation pour un concasseur à percussion rotatif Not-in-force EP2545996B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12005105T PL2545996T3 (en) 2011-07-11 2012-07-10 Outil d'accélération et profil de centrifugation pour un concasseur à percussion rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011051744A DE102011051744A1 (en) 2011-07-11 2011-07-11 Acceleration tool and spin profile for a rotary impact crusher

Publications (3)

Publication Number Publication Date
EP2545996A2 EP2545996A2 (en) 2013-01-16
EP2545996A3 EP2545996A3 (en) 2013-06-05
EP2545996B1 true EP2545996B1 (en) 2019-05-08

Family

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Application Number Title Priority Date Filing Date
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EP (1) EP2545996B1 (en)
DE (1) DE102011051744A1 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014082722A1 (en) * 2012-11-28 2014-06-05 DICHTER, Ingrid Composed accelerating member with simple radially arranged multiple block sliding member
DE102015205011A1 (en) * 2015-03-19 2016-09-22 Thyssenkrupp Ag Grinding track for a shredding device
NL1041689B1 (en) * 2016-01-25 2017-07-31 Petrus Josephus Andreas Van Der Zanden Johannes Acceleration unit for impact crusher.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807176A1 (en) * 1987-03-06 1988-10-20 Kobe Steel Ltd IMPACT CRUSHERS
US20030213861A1 (en) * 2002-05-15 2003-11-20 Condon Gary J. Crusher wear components
US7753303B2 (en) * 2006-09-21 2010-07-13 Hall David R Rotary shaft impactor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102011051744A1 (en) 2013-01-17
EP2545996A3 (en) 2013-06-05
EP2545996A2 (en) 2013-01-16
PL2545996T3 (en) 2019-11-29

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