EP3595815B1 - Swing jaw and jaw crusher - Google Patents

Swing jaw and jaw crusher Download PDF

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Publication number
EP3595815B1
EP3595815B1 EP18711316.2A EP18711316A EP3595815B1 EP 3595815 B1 EP3595815 B1 EP 3595815B1 EP 18711316 A EP18711316 A EP 18711316A EP 3595815 B1 EP3595815 B1 EP 3595815B1
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EP
European Patent Office
Prior art keywords
jaw
hollow body
swing jaw
body structure
swing
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EP18711316.2A
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German (de)
French (fr)
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EP3595815A1 (en
Inventor
Piotr SZCZELINA
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ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
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ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
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Publication of EP3595815A1 publication Critical patent/EP3595815A1/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
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/10—Shape or construction of jaws

Definitions

  • the invention relates to a crushing rocker of a jaw crusher and a jaw crusher for crushing rock material.
  • Jaw crusher for example from the DE 196 31 023 A1 are known, usually have a first and a second crushing jaw, one crushing jaw is usually stationary and the other is designed as a vibrating crushing jaw. They are used to shred hard to very hard materials such as basalt or granite. The material strength results in correspondingly high loads in the jaw crusher, which act in particular on the crushing arm.
  • the crushing rocker In order to withstand the loads, the crushing rocker is usually designed as a closed cast box, with several holes being provided in the box from a casting point of view in order to position and hold the cast cores. However, these holes turned out to be weak points in the crushing process due to the large forces and tensions that occur, which lead to damage to the crushing arm.
  • Other examples of crushing wings are in US 2341105 , DE 4108517 , DE 1155662 and WO 2013/024197 disclosed.
  • the invention is therefore based on the object of conceiving a crushing rocker in which the stresses occurring in the crushing rocker are reduced.
  • the crushing rocker of a jaw crusher has a receptacle provided in an upper part of the crushing rocker for the oscillating mounting of the crushing rocker on the jaw crusher and a support area arranged in a lower part of the crushing rocker for supporting the crushing rocker, the rocker having a hollow body structure for stiffening, the hollow body structure in a longitudinal section of the crushing arm from a large number of There is stiffening elements which all have a common point of intersection along their main axis of extent.
  • the shape of the stiffening elements leading to a common point of intersection is similar to the shape of a node in a branch of a tree, so that one can speak of a "bionic crushing arm".
  • Stiffening elements tapering towards a common point of intersection require less mass than a waffle pattern in order to distribute the forces and to keep the stresses in a lower range.
  • Dispensing with a front panel and / or rear panel also enables the component to be poured very easily.
  • the accessibility of the stiffeners / ribs also allows the quality (checking for voids) of the individual stiffeners to be checked.
  • additional functions such as fastening options for split crushing jaws, can be integrated into the supporting structure.
  • the hollow body structure consists of four stiffening elements in longitudinal section, which are arranged in an x-shape to one another.
  • the design with exactly four stiffening elements enables a flow of forces that is gentle on components while using as little material as possible.
  • the hollow body structure extends from the receptacle for the oscillating mounting of the crushing rocker to at least the support area.
  • the stiffening elements can form triangular cells in the longitudinal section of the hollow body structure, as a result of which the hollow body structure extends as far as side parts.
  • the crushing rocker has a longitudinal center plane which extends perpendicular to the axis of oscillation of the crushing rocker, the longitudinal center plane forming a plane of symmetry through the common point of intersection of the stiffening elements.
  • the common point of intersection is thus arranged centrally and thus enables a good distribution of the forces, moments and tensions that arise.
  • the crushing rocker has a front side for equipping with a crushing jaw, a rear side and a first and a second side part, wherein the hollow body structure can be designed to be open on the front side and / or rear side.
  • the invention advantageously relates to a crushing rocker with a front side, a rear side and two side parts, the front side being equipped with a breaking jaw.
  • the breaking jaw is supported in a contact area on the hollow body structure, the breaking jaw in this contact area being able to have a stiffening structure adapted to the hollow body structure, which results in an optimal dissipation of the forces.
  • the crushing rocker can be designed in such a way that, in the side view, it tapers in a wedge shape from the receptacle for the oscillating mounting of the crushing rocker to the support area, which saves mass in the lower area.
  • a front plate formed in one piece with a hollow body structure is provided on the front side of the crushing rocker. This serves to additionally stiffen the crushing arm. Unless such a front panel is provided, the rear side is preferably designed to be open in order to simplify the manufacture of the crushing rocker.
  • the invention further relates to a jaw crusher for crushing rock material with an inlet for the rock material, an outlet for crushed rock material and a first and second crushing jaw, at least one of the two crushing jaws being designed as a vibrating crushing jaw and the at least one vibrating crushing jaw on one Break rocker is attached with the features described above.
  • the other jaw can either be stationary or oscillating.
  • the other crushing jaw is arranged on a stationary support structure, the stationary support structure likewise having a hollow body structure which, in a longitudinal section, consists of a plurality of stiffening elements which all have a common point of intersection along their main axis of extension.
  • the hollow body structure of the stationary support structure consists in longitudinal section of four stiffening elements which are arranged in an x-shape to one another.
  • Fig. 1 shows a jaw crusher for crushing rock material with an inlet 1 for the rock material, an outlet 2 for crushed rock material as well as a first and a second crushing jaw 3, 4.
  • the first crushing jaw 3 is designed as a vibrating crushing jaw and is mounted on a crushing arm 5 for this purpose.
  • the second breaking jaw 4, however, is arranged on a stationary support structure 6.
  • the crushing rocker 5 has in an upper part a receptacle 7 for the swinging mounting of the crushing rocker 5 on the jaw crusher.
  • the crushing rocker 5 is driven in this area by means of an eccentric shaft 8.
  • a support area 9 is provided on which the crushing rocker 5 is supported on a pressure plate 10 in a manner known per se.
  • a tie rod 11 ensures constant contact between the pressure plate 10 and the crushing rocker 5.
  • a crushing gap 12 forms between the two crushing jaws 3, 4, in which the rock material to be crushed is subjected to compressive stress due to the eccentrically driven first crushing jaw 3.
  • FIG. 2a to 2c a first embodiment of the crushing rocker 5 explained in more detail.
  • a hollow body structure 25 which, in a longitudinal section of the crushing rocker 5, consists of a multiplicity of stiffening elements 26 which all have a common, single point of intersection 33 along their main axis of extension.
  • the remaining area of the hollow body structure 25 preferably has triangular recesses 15, so that the hollow body structure 25 extends up to two side parts 16, 17 which laterally delimit the hollow body structure 25.
  • the side parts 16, 17 are particularly U-shaped in cross section of the crushing rocker 5.
  • the side parts 16, 17 are optionally provided with transverse reinforcements 18, 19.
  • the hollow body structure 25 is limited by the receptacle 7 for the swinging mounting of the crushing rocker around a swing axis 32.
  • the hollow body structure 25 is designed to be open at the bottom.
  • the hollow body structure 25 preferably consists in longitudinal section of four stiffening elements 26 which are arranged in an x-shape to one another.
  • the x-shaped arrangement of the stiffening elements 26 is particularly preferably aligned symmetrically to a longitudinal center plane 20 of the crushing rocker 5 extending perpendicular to the pivot axis 32 and thus offers an optimal shape to dissipate the forces and moments occurring during the crushing process and thereby keep the stresses to a minimum.
  • the hollow body structure is on the in Fig. 2a front and on the in Figure 2b rear side shown open.
  • a first crushing jaw 3 On the crushing rocker 5, a lower clamping bar 22 and upper clamping means 23 (see FIG Fig. 1 ) intended.
  • the rear side of the first breaking jaw preferably has a stiffening structure (not shown) in its contact area with the breaking rocker 5, which is adapted to the hollow body structure 25 of the breaking rocker 5.
  • Fig. 1 a further preferred feature can be seen, according to which the crushing arm 5 tapers in a wedge shape in the side view from the receptacle 7 for the swinging mounting of the crushing arm to the support area 9, which saves mass in the lower region of the crushing arm.
  • the second embodiment shown differs from the first embodiment according to FIG Figures 2a to 2c essentially only in that the hollow body structure 25 is covered on the back with a rear wall 30, which in turn is preferably in one piece with the hollow body structure 25 is trained.
  • the hollow body structure is on its front side ( Fig. 3a ), however, designed to be open, whereby the production and the subsequent inspection of the crushing rocker 5 is facilitated by better accessibility.
  • the jaw crusher is to be designed with two movable crushing rockers (not shown), these can be designed in accordance with the exemplary embodiments shown above. Usually, however, one crushing jaw is arranged to be stationary and the other crushing jaw is arranged to swing.
  • the second crushing jaw 4 is designed to be stationary and is held on a stationary support structure 6, which, for example, also has a hollow body structure which, in a longitudinal section of the stationary crushing jaw, consists of a large number of stiffening elements that all have a common point of intersection along their main axis of extension (not in Fig.1 recognizable).
  • the stationary hollow body structure preferably consists in longitudinal section of four stiffening elements which are arranged in an x-shape to one another.
  • the second breaking jaw 4 can also be provided with a stiffening structure based on the first breaking jaw 3, which is adapted to the hollow body structure 31 of the supporting structure in the contact area with the supporting structure 6.
  • FIG. 4 a third embodiment of a crushing rocker 5 according to the invention is shown in the front view.
  • This crushing rocker 5 has on its front side a front plate 28 which is formed in one piece with the hollow body structure 25 according to the first embodiment.
  • the crushing rocker 5 comprises the aforementioned features of the first exemplary embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Description

Die Erfindung betrifft eine Brechschwinge eines Backenbrechers sowie einen Backenbrecher zur Zerkleinerung von Gesteinsmaterial.The invention relates to a crushing rocker of a jaw crusher and a jaw crusher for crushing rock material.

Backenbrecher, wie sie beispielsweise aus der DE 196 31 023 A1 bekannt sind, weisen üblicherweise eine erste und eine zweite Brechbacke auf, wobei eine Brechbacke meist stationär und die andere als schwingende Brechbacke ausgebildet ist. Sie werden zur Zerkleinerung von harten bis sehr harten Materialien, wie beispielsweise Basalt oder Granit, eingesetzt. Aus der Materialfestigkeit resultieren entsprechend hohe Belastungen im Backenbrecher, die insbesondere auf die Brechschwinge wirken. Um den Belastungen standzuhalten, wird die Brechschwinge üblicherweise als geschlossener Gusskasten ausgeführt, wobei aus gusstechnischer Sicht im Kasten mehrere Löcher vorgesehen sind, um die Gusskerne zu positionieren und zu halten. Diese Löcher haben sich jedoch im Brechprozess aufgrund der auftretenden großen Kräfte und Spannungen als Schwachstelle herausgestellt, die zu Schäden an der Brechschwinge führen. Andere Beispiele von Brechschwingen sind in US 2341105 , DE 4108517 , DE 1155662 und WO 2013/024197 offenbart.Jaw crusher, for example from the DE 196 31 023 A1 are known, usually have a first and a second crushing jaw, one crushing jaw is usually stationary and the other is designed as a vibrating crushing jaw. They are used to shred hard to very hard materials such as basalt or granite. The material strength results in correspondingly high loads in the jaw crusher, which act in particular on the crushing arm. In order to withstand the loads, the crushing rocker is usually designed as a closed cast box, with several holes being provided in the box from a casting point of view in order to position and hold the cast cores. However, these holes turned out to be weak points in the crushing process due to the large forces and tensions that occur, which lead to damage to the crushing arm. Other examples of crushing wings are in US 2341105 , DE 4108517 , DE 1155662 and WO 2013/024197 disclosed.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Brechschwinge zu konzipieren, bei der die in der Brechschwinge auftretenden Spannungen reduziert werden.The invention is therefore based on the object of conceiving a crushing rocker in which the stresses occurring in the crushing rocker are reduced.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale der Ansprüche 1 und 12 gelöst.According to the invention, this object is achieved by the features of claims 1 and 12.

Die erfindungsgemäße Brechschwinge eines Backenbrechers weist eine in einem oberen Teil der Brechschwinge vorgesehene Aufnahme zur schwingenden Halterung der Brechschwinge am Backenbrecher und einen in einem unteren Teil der Brechschwinge angeordneten Abstützbereich zum Abstützen der Brechschwinge auf, wobei die Schwinge zur Versteifung eine Hohlkörperstruktur aufweist, wobei die Hohlkörperstruktur in einem Längsschnitt der Brechschwinge aus einer Vielzahl von Versteifungselementen besteht, die entlang ihrer Haupterstreckungsachse alle einen gemeinsamen Schnittpunkt aufweisen.The crushing rocker of a jaw crusher according to the invention has a receptacle provided in an upper part of the crushing rocker for the oscillating mounting of the crushing rocker on the jaw crusher and a support area arranged in a lower part of the crushing rocker for supporting the crushing rocker, the rocker having a hollow body structure for stiffening, the hollow body structure in a longitudinal section of the crushing arm from a large number of There is stiffening elements which all have a common point of intersection along their main axis of extent.

Durch diesen einzigen Schnittpunkt der Brechschwinge kann der Kraftfluss zwischen den einzelnen Versteifungselementen sehr gut verteilt werden. Zudem können die in der Hohlkörperstruktur entstehenden Spannungen reduziert werden. Außerdem ergibt sich hierdurch eine sehr torsionssteife Konstruktion, sodass die Schwinge nicht mehr als geschlossener Gusskasten ausgeführt werden muss, sondern vielmehr einseitig oder beidseitig offen ausgebildet werden kann. Eine offene Konstruktion hat zudem den Vorteil, dass auf Löcher für die Gusskerne verzichtet werden kann, wodurch eine Schwachstelle bei bekannten Brechschwingen vermieden wird.Through this single point of intersection of the crushing rocker, the flow of forces between the individual stiffening elements can be distributed very well. In addition, the stresses arising in the hollow body structure can be reduced. In addition, this results in a very torsion-resistant construction, so that the rocker no longer has to be designed as a closed cast box, but rather can be designed to be open on one or both sides. An open construction also has the advantage that holes for the cast cores can be dispensed with, which avoids a weak point in known crushing wings.

Die Form der zu einem gemeinsamen Schnittpunkt führenden Versteifungselemente ähnelt der Form eines Knotenpunktes einer Verästelung eines Baumes, sodass man von einer "bionischen Brechschwinge" sprechen kann. Zu einem gemeinsamen Schnittpunkt zulaufende Versteifungselemente benötigen gegenüber einem Waffelmuster eine geringere Masse, um die Kräfte zu verteilen und die Spannungen in einem niedrigeren Bereich zu halten. Der Verzicht auf ein Frontblech und/oder Rückblech ermöglicht zudem ein sehr einfaches Gießen des Bauteils. Durch die Zugänglichkeit der Versteifungen/Verrippung lässt sich außerdem die Qualität (Prüfung auf Lunker) der einzelnen Versteifungen gut überprüfen. Außerdem können durch die erzielte Zugänglichkeit weitere Funktionen, wie Befestigungsmöglichkeiten bei geteilten Brechbacken, in die Tragstruktur integriert werden.The shape of the stiffening elements leading to a common point of intersection is similar to the shape of a node in a branch of a tree, so that one can speak of a "bionic crushing arm". Stiffening elements tapering towards a common point of intersection require less mass than a waffle pattern in order to distribute the forces and to keep the stresses in a lower range. Dispensing with a front panel and / or rear panel also enables the component to be poured very easily. The accessibility of the stiffeners / ribs also allows the quality (checking for voids) of the individual stiffeners to be checked. In addition, thanks to the accessibility achieved, additional functions, such as fastening options for split crushing jaws, can be integrated into the supporting structure.

Weitere Vorteile und Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Further advantages and refinements of the invention are the subject of the subclaims.

Bevorzugt ist vorgesehen, dass die Hohlkörperstruktur im Längsschnitt aus vier Versteifungselementen besteht, die x-förmig zueinander angeordnet sind. Die Ausgestaltung mit genau vier Versteifungselementen ermöglicht einen komponentenschonenden Kraftfluss bei gleichzeitig möglichst geringem Materialeinsatz.It is preferably provided that the hollow body structure consists of four stiffening elements in longitudinal section, which are arranged in an x-shape to one another. The design with exactly four stiffening elements enables a flow of forces that is gentle on components while using as little material as possible.

Gemäß einer bevorzugten Ausgestaltung erstreckt sich die Hohlkörperstruktur von der Aufnahme zur schwingenden Halterung der Brechschwinge bis wenigstens zum Abstützbereich. Des Weiteren können die Versteifungselemente im Längsschnitt der Hohlkörperstruktur dreieckförmige Zellen bilden, wodurch sich die Hohlkörperstruktur bis zu Seitenteilen erstreckt.According to a preferred embodiment, the hollow body structure extends from the receptacle for the oscillating mounting of the crushing rocker to at least the support area. Furthermore, the stiffening elements can form triangular cells in the longitudinal section of the hollow body structure, as a result of which the hollow body structure extends as far as side parts.

Die Brechschwinge weist eine Längsmittelebene auf, die sich senkrecht zur Schwingachse der Brechschwinge erstreckt, wobei die Längsmittelebene eine Symmetrieebene durch den gemeinsamen Schnittpunkt der Versteifungselemente bildet. Der gemeinsame Schnittpunkt ist somit zentral angeordnet und ermöglicht so eine gute Verteilung der entstehenden Kräfte, Momente und Spannungen.The crushing rocker has a longitudinal center plane which extends perpendicular to the axis of oscillation of the crushing rocker, the longitudinal center plane forming a plane of symmetry through the common point of intersection of the stiffening elements. The common point of intersection is thus arranged centrally and thus enables a good distribution of the forces, moments and tensions that arise.

Gemäß einem weiteren Ausführungsbeispiel weist die Brechschwinge eine Vorderseite zur Bestückung mit einer Brechbacke, eine Rückseite sowie ein erstes und ein zweites Seitenteil auf, wobei die Hohlkörperstruktur auf der Vorderseite und/oder Rückseite offen ausgebildet sein kann.According to a further exemplary embodiment, the crushing rocker has a front side for equipping with a crushing jaw, a rear side and a first and a second side part, wherein the hollow body structure can be designed to be open on the front side and / or rear side.

Die Erfindung bezieht sich vorteilhafterweise auf eine Brechschwinge mit einer Vorderseite, eine Rückseite und zwei Seitenteilen, wobei die Vorderseite mit einer Brechbacke bestückt ist. Dabei stützt sich die Brechbacke in einem Kontaktbereich auf der Hohlkörperstruktur ab, wobei die Brechbacke in diesem Kontaktbereich eine an die Hohlkörperstruktur angepasste Versteifungsstruktur aufweisen kann, wodurch sich eine optimale Ableitung der Kräfte ergibt.The invention advantageously relates to a crushing rocker with a front side, a rear side and two side parts, the front side being equipped with a breaking jaw. The breaking jaw is supported in a contact area on the hollow body structure, the breaking jaw in this contact area being able to have a stiffening structure adapted to the hollow body structure, which results in an optimal dissipation of the forces.

Um das erste und zweite Seitenteil zu versteifen, können diese mit Querversteifungen versehen sein. Außerdem kann die Brechschwinge so ausgebildet werden, dass sie sich in der Seitenansicht von der Aufnahme zur schwingenden Halterung der Brechschwinge bis zum Abstützbereich keilförmig verjüngt, wodurch im unteren Bereich Masse eingespart wird.In order to stiffen the first and second side parts, they can be provided with transverse stiffeners. In addition, the crushing rocker can be designed in such a way that, in the side view, it tapers in a wedge shape from the receptacle for the oscillating mounting of the crushing rocker to the support area, which saves mass in the lower area.

Des Weiteren ist es denkbar, dass auf der Vorderseite der Brechschwinge eine einstückig mit Hohlkörperstruktur ausgebildete Frontplatte vorgesehen ist. Diese dient der zusätzlichen Versteifung der Brechschwinge. Sofern eine solche Frontplatte vorgesehen ist, wird die Rückseite vorzugsweise offen ausgebildet, um dadurch die Herstellung der Brechschwinge zu vereinfachen.Furthermore, it is conceivable that a front plate formed in one piece with a hollow body structure is provided on the front side of the crushing rocker. This serves to additionally stiffen the crushing arm. Unless such a front panel is provided, the rear side is preferably designed to be open in order to simplify the manufacture of the crushing rocker.

Die Erfindung bezieht sich weiterhin auf einen Backenbrecher zur Zerkleinerung von Gesteinsmaterial mit einem Einlass für das Gesteinsmaterial, einem Auslass für zerkleinertes Gesteinsmaterial sowie einer ersten und zweiten Brechbacke, wobei wenigstens eine der beiden Brechbacken als schwingende Brechbacke ausgebildet ist und die wenigstens eine schwingende Brechbacke auf einer Brechschwinge mit den oben beschriebenen Merkmalen befestigt ist. Die andere Brechbacke kann wahlweise stationär oder schwingend ausgebildet werden. Bei einer stationären Konstruktion wird die andere Brechbacke auf einer stationären Tragstruktur angeordnet, wobei die stationäre Tragstruktur ebenfalls eine Hohlkörperstruktur aufweist, die in einem Längsschnitt aus einer Vielzahl von Versteifungselementen besteht, die entlang ihrer Haupterstreckungsachse alle einen gemeinsamen Schnittpunkt aufweisen.The invention further relates to a jaw crusher for crushing rock material with an inlet for the rock material, an outlet for crushed rock material and a first and second crushing jaw, at least one of the two crushing jaws being designed as a vibrating crushing jaw and the at least one vibrating crushing jaw on one Break rocker is attached with the features described above. The other jaw can either be stationary or oscillating. In the case of a stationary construction, the other crushing jaw is arranged on a stationary support structure, the stationary support structure likewise having a hollow body structure which, in a longitudinal section, consists of a plurality of stiffening elements which all have a common point of intersection along their main axis of extension.

Besonders bevorzugt besteht die Hohlkörperstruktur der stationären Tragstruktur im Längsschnitt aus vier Versteifungselementen, die x-förmig zueinander angeordnet sind.Particularly preferably, the hollow body structure of the stationary support structure consists in longitudinal section of four stiffening elements which are arranged in an x-shape to one another.

Weitere Ausgestaltungen der Erfindung werden anhand der nachfolgenden Beschreibung einiger Ausführungsbeispiele und der Zeichnung näher erläutert.Further refinements of the invention are explained in more detail using the following description of some exemplary embodiments and the drawing.

In der Zeichnung zeigen

Fig. 1
eine Schnittdarstellung des erfindungsgemäßen Backenbrechers,
Fig. 2a
eine Vorderansicht einer Brechschwinge gemäß einem ersten Ausführungsbeispiel,
Fig. 2b
eine Rückansicht der Brechschwinge gemäß Fig. 2a,
Fig. 2c
eine dreidimensionale Darstellung der Brechschwinge gemäß Fig. 2a,
Fig. 3a
eine Vorderansicht einer Brechschwinge gemäß einem zweiten Ausführungsbeispiel,
Fig. 3b
eine Rückansicht der Brechschwinge gemäß Fig. 3a,
Fig. 3c
eine dreidimensionale Darstellung der Brechschwinge gemäß Fig. 3a und
Fig. 4
eine Vorderansicht einer Brechschwinge gemäß einem dritten Ausführungsbeispiel.
Show in the drawing
Fig. 1
a sectional view of the jaw crusher according to the invention,
Fig. 2a
a front view of a crushing rocker according to a first embodiment,
Figure 2b
a rear view of the crushing arm according to Fig. 2a ,
Figure 2c
a three-dimensional representation of the crushing arm according to Fig. 2a ,
Fig. 3a
a front view of a crushing rocker according to a second embodiment,
Figure 3b
a rear view of the crushing arm according to Fig. 3a ,
Figure 3c
a three-dimensional representation of the crushing arm according to Fig. 3a and
Fig. 4
a front view of a crushing rocker according to a third embodiment.

Fig. 1 zeigt einen Backenbrecher zur Zerkleinerung von Gesteinsmaterial mit einem Einlass 1 für das Gesteinsmaterial, einem Auslass 2 für zerkleinertes Gesteinsmaterial sowie eine erste und eine zweite Brechbacke 3, 4. Die erste Brechbacke 3 ist als schwingende Brechbacke ausgebildet und ist hierzu auf einer Brechschwinge 5 montiert. Die zweite Brechbacke 4 ist hingegen auf einer stationären Tragstruktur 6 angeordnet. Die Brechschwinge 5 weist in einem oberen Teil eine Aufnahme 7 zur schwingenden Halterung der Brechschwinge 5 am Backenbrecher auf. Die Brechschwinge 5 wird in diesem Bereich mittels einer exzentrischen Welle 8 angetrieben. In einem unteren Teil der Brechschwinge 5 ist ein Abstützbereich 9 vorgesehen an dem sich die Brechschwinge 5 an einer Druckplatte 10 in an sich bekannter Art und Weise abstützt. Ein Zuganker 11 gewährleistet dabei einen ständigen Kontakt zwischen Druckplatte 10 und Brechschwinge 5. Zwischen den beiden Brechbacken 3, 4 bildet sich ein Brechspalt 12 aus, in dem das zu zerkleinernde Gesteinsmaterial einer Druckbeanspruchung aufgrund der exzentrisch angetrieben ersten Brechbacke 3 ausgesetzt ist. Fig. 1 shows a jaw crusher for crushing rock material with an inlet 1 for the rock material, an outlet 2 for crushed rock material as well as a first and a second crushing jaw 3, 4. The first crushing jaw 3 is designed as a vibrating crushing jaw and is mounted on a crushing arm 5 for this purpose. The second breaking jaw 4, however, is arranged on a stationary support structure 6. The crushing rocker 5 has in an upper part a receptacle 7 for the swinging mounting of the crushing rocker 5 on the jaw crusher. The crushing rocker 5 is driven in this area by means of an eccentric shaft 8. In a lower part of the crushing rocker 5, a support area 9 is provided on which the crushing rocker 5 is supported on a pressure plate 10 in a manner known per se. A tie rod 11 ensures constant contact between the pressure plate 10 and the crushing rocker 5. A crushing gap 12 forms between the two crushing jaws 3, 4, in which the rock material to be crushed is subjected to compressive stress due to the eccentrically driven first crushing jaw 3.

Im Folgenden wird anhand der Figuren 2a bis 2c ein erstes Ausführungsbeispiel der Brechschwinge 5 näher erläutert. Zur Versteifung der Brechschwinge weist diese eine Hohlkörperstruktur 25 auf, die in einem Längsschnitt der Brechschwinge 5 aus einer Vielzahl von Versteifungselementen 26 besteht, die entlang ihrer Haupterstreckungsachse alle einen gemeinsamen, einzigen Schnittpunkt 33 aufweisen. Der verbleibende Bereich der Hohlkörperstruktur 25 weist vorzugsweise dreiecksförmige Ausnehmungen 15 auf, sodass sich die Hohlkörperstruktur 25 bis zu zwei Seitenteilen 16, 17 erstreckt, welche die Hohlkörperstruktur 25 seitlich begrenzen. Die Seitenteile 16, 17 sind im Querschnitt der Brechschwinge 5 insbesondere u-förmig ausgebildet. Optional sind die Seitenteile 16, 17 mit Querversteifungen 18, 19 versehen. Nach oben wird die Hohlkörperstruktur 25 durch die Aufnahme 7 zur schwingenden Halterung der Brechschwinge um eine Schwingachse 32 begrenzt. Nach unten ist die Hohlkörperstruktur 25 in diesem Ausführungsbeispiel offen ausgebildet. Bevorzugt besteht die Hohlkörperstruktur 25 im Längsschnitt aus vier Versteifungselementen 26, die x-förmig zueinander angeordnet sind. Besonders bevorzugt ist die x-förmige Anordnung der Versteifungselemente 26 symmetrisch zu einer sich senkrecht zur Schwingachse 32 erstreckenden Längsmittelebene 20 der Brechschwinge 5 ausgerichtet und bietet dadurch eine optimale Form, um die beim Brechprozess auftretenden Kräfte, Momente abzuleiten und dadurch die Spannungen minimal zu halten.In the following, the Figures 2a to 2c a first embodiment of the crushing rocker 5 explained in more detail. To stiffen the crushing rocker, it has a hollow body structure 25 which, in a longitudinal section of the crushing rocker 5, consists of a multiplicity of stiffening elements 26 which all have a common, single point of intersection 33 along their main axis of extension. The remaining area of the hollow body structure 25 preferably has triangular recesses 15, so that the hollow body structure 25 extends up to two side parts 16, 17 which laterally delimit the hollow body structure 25. The side parts 16, 17 are particularly U-shaped in cross section of the crushing rocker 5. The side parts 16, 17 are optionally provided with transverse reinforcements 18, 19. At the top, the hollow body structure 25 is limited by the receptacle 7 for the swinging mounting of the crushing rocker around a swing axis 32. In this exemplary embodiment, the hollow body structure 25 is designed to be open at the bottom. The hollow body structure 25 preferably consists in longitudinal section of four stiffening elements 26 which are arranged in an x-shape to one another. The x-shaped arrangement of the stiffening elements 26 is particularly preferably aligned symmetrically to a longitudinal center plane 20 of the crushing rocker 5 extending perpendicular to the pivot axis 32 and thus offers an optimal shape to dissipate the forces and moments occurring during the crushing process and thereby keep the stresses to a minimum.

Im dargestellten Ausführungsbeispiel ist die Hohlkörperstruktur auf der in Fig. 2a dargestellten Vorderseite und auf der in Fig. 2b dargestellten Rückseite offen ausgebildet. Zur Halterung einer ersten Brechbacke 3 auf der Brechschwinge 5 sind auf der Vorderseite der Brechschwinge eine untere Klemmleiste 22 und obere Klemmmittel 23 (siehe Fig. 1) vorgesehen. Vorzugsweise weist die Rückseite der ersten Brechbacke in ihrem Kontaktbereich mit der Brechschwinge 5 eine Versteifungsstruktur auf (nicht dargestellt), die an die Hohlkörperstruktur 25 der Brechschwinge 5 angepasst ist. Aus Fig. 1 ist ein zudem ein bevorzugtes Merkmal ersichtlich, wonach sich die Brechschwinge 5 in der Seitenansicht von der Aufnahme 7 zur schwingenden Halterung der Brechschwinge bis zum Abstützbereich 9 keilförmig verjüngt, wodurch im unteren Bereich der Brechschwinge Masse eingespart wird.In the illustrated embodiment, the hollow body structure is on the in Fig. 2a front and on the in Figure 2b rear side shown open. To hold a first crushing jaw 3 on the crushing rocker 5, a lower clamping bar 22 and upper clamping means 23 (see FIG Fig. 1 ) intended. The rear side of the first breaking jaw preferably has a stiffening structure (not shown) in its contact area with the breaking rocker 5, which is adapted to the hollow body structure 25 of the breaking rocker 5. Out Fig. 1 a further preferred feature can be seen, according to which the crushing arm 5 tapers in a wedge shape in the side view from the receptacle 7 for the swinging mounting of the crushing arm to the support area 9, which saves mass in the lower region of the crushing arm.

Das in den Figuren 3a bis 3c gezeigte zweite Ausführungsbeispiel unterscheidet sich vom ersten Ausführungsbeispiel gemäß den Figuren 2a bis 2c im Wesentlichen nur dadurch, dass die Hohlkörperstruktur 25 auf der Rückseite mit einer Rückwand 30 abgedeckt ist, die vorzugsweise wiederum einstückig mit der Hohlkörperstruktur 25 ausgebildet ist. Die Hohlkörperstruktur ist auf ihrer Vorderseite (Fig. 3a) hingegen offen ausgebildet, wodurch die Herstellung und die spätere Inspektion der Brechschwinge 5 durch eine bessere Zugänglichkeit erleichtert wird.That in the Figures 3a to 3c The second embodiment shown differs from the first embodiment according to FIG Figures 2a to 2c essentially only in that the hollow body structure 25 is covered on the back with a rear wall 30, which in turn is preferably in one piece with the hollow body structure 25 is trained. The hollow body structure is on its front side ( Fig. 3a ), however, designed to be open, whereby the production and the subsequent inspection of the crushing rocker 5 is facilitated by better accessibility.

Soll der Backenbrecher mit zwei beweglichen Brechschwingen ausgebildet werden (nicht dargestellt), können diese gemäß den oben aufgezeigten Ausführungsbeispielen ausgebildet werden. Üblicherweise ist jedoch eine Brechbacke stationär und die andere Brechbacke schwingend angeordnet. Beim Ausführungsbeispiel gemäß Fig. 1 ist die zweite Brechbacke 4 stationär ausgebildet und wird auf einer stationären Tragstruktur 6 gehaltert, welche beispielhaft ebenfalls eine Hohlkörperstruktur aufweist, die in einem Längsschnitt der stationären Brechbacke aus einer Vielzahl von Versteifungselementen besteht, die entlang ihrer Haupterstreckungsachse alle einen gemeinsamen Schnittpunkt aufweisen (nicht in Fig.1 erkennbar).If the jaw crusher is to be designed with two movable crushing rockers (not shown), these can be designed in accordance with the exemplary embodiments shown above. Usually, however, one crushing jaw is arranged to be stationary and the other crushing jaw is arranged to swing. In the embodiment according to Fig. 1 the second crushing jaw 4 is designed to be stationary and is held on a stationary support structure 6, which, for example, also has a hollow body structure which, in a longitudinal section of the stationary crushing jaw, consists of a large number of stiffening elements that all have a common point of intersection along their main axis of extension (not in Fig.1 recognizable).

Vorzugsweise besteht die stationäre Hohlkörperstruktur im Längsschnitt aus vier Versteifungselementen, die x-förmig zueinander angeordnet sind. Die zweite Brechbacke 4 kann in Anlehnung an die erste Brechbacke 3 ebenfalls mit einer Versteifungsstruktur versehen sein, welche im Kontaktbereich mit der Tragstruktur 6 an die Hohlkörperstruktur 31 der Tragstruktur angepasst ist.The stationary hollow body structure preferably consists in longitudinal section of four stiffening elements which are arranged in an x-shape to one another. The second breaking jaw 4 can also be provided with a stiffening structure based on the first breaking jaw 3, which is adapted to the hollow body structure 31 of the supporting structure in the contact area with the supporting structure 6.

Es ist ebenfalls denkbar, dass nur die stationäre Brechschwinge eine erfindungsgemäße Hohlkörperstruktur aufweist.It is also conceivable that only the stationary crushing rocker has a hollow body structure according to the invention.

In Fig. 4 ist eine dritte Ausführungsform einer erfindungsgemäßen Brechschwinge 5 in der Vorderansicht dargestellt. Diese Brechschwinge 5 weist an ihrer Vorderseite eine Frontplatte 28 auf, die einstückig mit der Hohlkörperstruktur 25 gemäß dem ersten Ausführungsbeispiel ausgebildet ist. Im Übrigen umfasst die Brechschwinge 5 die zuvor genannten Merkmale des ersten Ausführungsbeispiels.In Fig. 4 a third embodiment of a crushing rocker 5 according to the invention is shown in the front view. This crushing rocker 5 has on its front side a front plate 28 which is formed in one piece with the hollow body structure 25 according to the first embodiment. Incidentally, the crushing rocker 5 comprises the aforementioned features of the first exemplary embodiment.

Claims (14)

  1. A swing jaw (5) of a jaw crusher with a receptacle (7) provided in a top part of the swing jaw (5) for pivotably holding the swing jaw on the jaw crusher, and a supporting region (9) located in a bottom part of the swing jaw for supporting the swing jaw, wherein for reinforcement purposes, the swing jaw (5) comprises a hollow body structure (25), characterized in that the hollow body structure (25), in a longitudinal section of the swing jaw (5), consists of a plurality of reinforcing elements (26), all of which have a common intersection point (33) along their main axis of extension.
  2. The swing jaw as claimed in claim 1, characterized in that the hollow body structure, viewed in a longitudinal section, consists of four reinforcing elements (26) arranged in an X-shape relative to each other.
  3. The swing jaw as claimed in claim 1 or 2, characterized in that the hollow body structure (25) extends from the receptacle (7) for pivotably holding the swing jaw up to at least the supporting region (9).
  4. The swing jaw as claimed in any of the preceding claims, characterized in that the reinforcing elements (26) form triangular cells (15) in the longitudinal section of the hollow body structure (25).
  5. The swing jaw as claimed in any of claims 1 to 4, characterized in that the swing jaw (5) has a longitudinal central plane (20) which extends perpendicularly to a pivot axis (32) of the swing jaw (5), and the longitudinal central plane (20) forms a plane of symmetry through the intersection point (33).
  6. The swing jaw as claimed in any of the preceding claims, characterized in that the swing jaw (5) comprises a front side for fitting with a breaker jaw (3), a back side and a first and a second side part (16, 17), wherein the hollow body structure (25) is formed open on the front side and/or the back side.
  7. The swing jaw as claimed in any of claims 1 to 5, characterized in that the swing jaw (5) comprises a front side, a back side and two side parts (16, 17), wherein the front side is fitted with a breaker jaw (3).
  8. The swing jaw as claimed in claim 7, characterized in that the breaker jaw (3) rests in a contact region on the hollow body structure (25), and in this contact region the breaker jaw (3) comprises a reinforcing structure (X) adapted to the hollow body structure.
  9. The swing jaw as claimed in any of the preceding claims, characterized in that the swing jaw (5), in a side view, tapers in a wedge shape from the receptacle (7) for pivotably holding the breaker jaw up to the supporting region (9).
  10. The swing jaw as claimed in claim 5, characterized in that the first and second side parts (16, 17) comprise transverse reinforcements (18, 19).
  11. The swing jaw as claimed in claim 5, characterized in that a front plate (28) formed integrally with the hollow body structure is formed on the front side of the swing jaw (5).
  12. A jaw crusher for comminuting rock material, with an inlet (1) for the rock material, an outlet (2) for comminuted rock material, and a first and a second breaker jaw (3, 4), wherein at least one of the two breaker jaws (3, 4) is configured as a swinging breaker jaw,
    characterized in that
    the at least one swinging breaker jaw (3) is attached to a swing jaw (5) as claimed in any of claims 1 to 11.
  13. The jaw crusher as claimed in claim 12, characterized in that the other of the two breaker jaws (4) is arranged on a stationary carrier structure (6), wherein the stationary carrier structure (6) also comprises a hollow body structure which, in a longitudinal section, consists of a plurality of reinforcing elements which all have a common intersection point along their main extension axis.
  14. The jaw crusher as claimed in claim 12 or 13, characterized in that the hollow body structure of the stationary carrier structure (6), in longitudinal section, consists of four reinforcing elements which are arranged in an X-shape relative to each other.
EP18711316.2A 2017-03-16 2018-03-14 Swing jaw and jaw crusher Active EP3595815B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017204414.4A DE102017204414A1 (en) 2017-03-16 2017-03-16 Crushing arm and jaw crusher
PCT/EP2018/056326 WO2018167114A1 (en) 2017-03-16 2018-03-14 Swing jaw and jaw crusher

Publications (2)

Publication Number Publication Date
EP3595815A1 EP3595815A1 (en) 2020-01-22
EP3595815B1 true EP3595815B1 (en) 2021-01-13

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EP18711316.2A Active EP3595815B1 (en) 2017-03-16 2018-03-14 Swing jaw and jaw crusher

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EP (1) EP3595815B1 (en)
CN (1) CN110418677B (en)
BR (1) BR112019018094A2 (en)
DE (1) DE102017204414A1 (en)
DK (1) DK3595815T3 (en)
RU (1) RU2019132519A (en)
WO (1) WO2018167114A1 (en)

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AT523357B1 (en) * 2020-01-13 2022-05-15 Rubble Master Hmh Gmbh Device for a crusher

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RU2569476C2 (en) * 2011-08-18 2015-11-27 Метсо Минералз, Инк. Connecting rod of jaw crusher, jaw crusher, crushing plant and crushing method
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Publication number Publication date
DK3595815T3 (en) 2021-04-12
WO2018167114A1 (en) 2018-09-20
RU2019132519A3 (en) 2021-04-16
RU2019132519A (en) 2021-04-16
CN110418677B (en) 2021-08-31
BR112019018094A2 (en) 2020-03-24
CN110418677A (en) 2019-11-05
DE102017204414A1 (en) 2018-09-20
EP3595815A1 (en) 2020-01-22

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