EP0259296A2 - Jaw crusher - Google Patents

Jaw crusher Download PDF

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Publication number
EP0259296A2
EP0259296A2 EP87890177A EP87890177A EP0259296A2 EP 0259296 A2 EP0259296 A2 EP 0259296A2 EP 87890177 A EP87890177 A EP 87890177A EP 87890177 A EP87890177 A EP 87890177A EP 0259296 A2 EP0259296 A2 EP 0259296A2
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EP
European Patent Office
Prior art keywords
jaw
crusher
movable
bearings
jaw crusher
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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.)
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EP87890177A
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German (de)
French (fr)
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EP0259296A3 (en
Inventor
Franz Dipl.-Ing. Rössler
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Voestalpine AG
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Voestalpine AG
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Publication of EP0259296A2 publication Critical patent/EP0259296A2/en
Publication of EP0259296A3 publication Critical patent/EP0259296A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00Crushing or disintegrating by reciprocating members
    • B02C1/02Jaw crushers or pulverisers
    • B02C1/04Jaw crushers or pulverisers with single-acting jaws

Definitions

  • the invention relates to a jaw crusher with a fixedly supported jaw and a counter jaw which can be driven in a reciprocating movement relative to this jaw, in which the driven counter jaw is moved by an eccentric shaft at toggle levers which are located one above the other in the vertical direction of the jaw.
  • a jaw crusher of the type mentioned at the outset can be found, for example, in AT-PS alone (A 1423/85).
  • Such jaw crusher which is designed as a toggle lever or double rocker crusher, is used to machine medium and large pieces of rock in a simple and effective manner.
  • the use of toggle levers for driving the movable jaw of such jaw crushers allows large crushing forces to be introduced, with the design of known jaw crushers mostly being such that the movable jaw was pivoted about a pivot axis in the area of the crushing chamber inlet.
  • the movable jaw was mostly curved in order to work with a pivot point located relatively high and close to the line of symmetry of the crushing angle with a minimum of friction during the crushing process and a relatively large stroke in the area of the crushing jaw.
  • the space requirement of the crusher is increased considerably in the vertical direction and there is the disadvantage that the stroke at the crushing chamber inlet is significantly less than the stroke at the crushing chamber outlet, which worsens the Crushing process in the upper area of the crushing chamber and thus a reduction in throughput results.
  • a jaw crusher of the type mentioned at the outset can be found, for example, in US Pat. No. 2,738,933.
  • the driven jaw is supported by a lever which engages approximately centrally on the driven jaw and is supported at the other end on the frame of the jaw crusher.
  • the drive takes place at two points of attack lying one above the other in the height direction of the jaw via toggle levers which are acted upon by an eccentric shaft provided with eccentric cams.
  • a disadvantage of this known jaw crusher is that the drivable jaw is supported only at one point via the lever and thus pivoting of the jaw about an axis lying in the jaw plane cannot be reliably switched off. Due to the great weight of such a jaw, the lever must also be solid.
  • the invention is now aimed at creating a jaw crusher of the type mentioned at the beginning, in which the length can be found with a low overall height and at the same time avoiding impairments of the accessibility of the crusher inlet.
  • the invention further aims to provide a jaw crusher design in which the crushing stroke can be made uniform over the height of the crushing chamber and advantageously kept constant.
  • This object of the inventive design of the jaw crusher consists essentially in the fact that the movable counter jaw is supported by at least two slide bearings or roller bearings arranged at a distance from one another in the vertical direction. Because the movable counter jaw is supported by slide bearings, this slide bearing can be accommodated in the area of the axial height of the movable jaw and the overall height can be saved.
  • the stroke of the jaw over the length of the crushing space can be adapted to the requirements and evened out.
  • the slide bearings or roller bearings are arranged at a distance from one another in the vertical direction, the refractive powers can be absorbed safely.
  • the crushing chamber remains freely accessible from above and there is no impairment in the material feed.
  • the two points of attack also reduce the load on the eccentric shafts and the bearings of the toggle lever mechanism can be made smaller and lighter.
  • an eccentric shaft is loaded symmetrically and, due to this symmetrical load, the bearings of the eccentric shaft can also be dimensioned much smaller.
  • the bearings are advantageously designed as a prism guide, as a result of which the jaw is guided in parallel can be.
  • Complete parallel guidance is obtained when the movable jaw can be driven to the same direction and with the same stroke at both points of attack of the toggle levers, with such a design the stroke in the crusher inlet being the same size as the stroke at the crusher outlet.
  • the crushing process is significantly improved in comparison with known double rocker constructions in the upper region of the crushing chamber, as a result of which an overall increase in throughput can be achieved.
  • the mounting for the movable counter jaw can be designed in a simple manner so that the movable jaw carrier has bearing extensions which have prismatic sliding surfaces, the roof edges of which run essentially parallel to one another. With such a bearing, loads occurring during the breaking process can easily be absorbed without this causing excessive stress on the drive or the bearing.
  • the sliding or rolling bearings are preferably arranged near the upper and near the lower edge of the movable jaw, as a result of which the refractive forces that occur can be absorbed at a large distance between the bearings and stable and safe mounting and guidance of the movable jaw can be achieved.
  • FIG. 1 shows a side view of a jaw crusher according to the invention, partly in section and 2 shows a section along the line II-II of Figure 1 in an enlarged view through one side of the bearing, wherein Figure 1 shows a section along the line II of Figure 2.
  • FIG. 1 shows a jaw crusher 1, the rigid jaw 2 of which is fixed to a jaw carrier 3 by means of clamp closures 4.
  • the jaw support 3 is supported on the housing 5, for which blocks 6 and retaining screws 7 are provided, which hold the jaw support 3 in contact with the blocks 6. With 8 ribs of the cheek plate are designated.
  • the movable jaw 9 is also again fixed via a clamp closure 4 on a jaw carrier 10 which carries bearing extensions 11 which are close to the upper and lower edges of the jaw 9, i.e. are arranged near the crusher inlet or outlet.
  • the bearing extensions 11 have prismatic sliding surfaces 12 which engage in a corresponding hollow prismatic counter profile of bearing shells 13 fixed to the housing 5.
  • the movable jaw 9 is driven via toggle levers 14 and 15, which are driven via a common eccentric shaft 16 with eccentric cams 17 and 18 offset by 180 °.
  • a stroke in the sense of the double arrow 19 is exerted on the movable jaw 9 via the toggle levers 14 and 15.
  • the power transmission takes place via pressure rollers 20 and springs 21 are supported between toggle levers 22 and the housing in order to maintain the frictional connection.
  • the prism guides 12, 13 are clearly visible in the illustration according to FIG. 2, with additional spring plates 23 being shown on the outside of the jaw support 10, via which the jaw support 10 is pulled by springs onto the housing and is thus held in contact with the toggle lever transmission mechanism .
  • the prismatic guide 12, 13 leads to a parallel guidance of the movable jaw 9, the stroke in the crusher inlet being kept equal to the stroke in the crusher outlet due to the symmetrical design of the toggle lever transmission mechanisms.

Abstract

The jaw crusher (1) has a fixed jaw (2) and a sliding jaw (9). The sliding jaw (9) slides in the direction of the double arrow (19) in vertically separated slide bearings, in particular in vee-guides (12, 13), and a toggle lever mechanism is provided whose toggle levers (14 and 15) impart forces to the moving jaw (9) in the same direction via a common eccentric shaft (16). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Backenbrecher mit einer ortsfest abgestützten Backe und einer relativ zu dieser Backe zu hin- und hergehender Bewegung antreibbaren Gegenbacke, bei welchem die antreibbare Gegenbacke an zwei in Höhenrichtung der Backe übereinanderliegenden Angriffsstellen über Knie­hebel von einer Exzenterwelle bewegt wird.The invention relates to a jaw crusher with a fixedly supported jaw and a counter jaw which can be driven in a reciprocating movement relative to this jaw, in which the driven counter jaw is moved by an eccentric shaft at toggle levers which are located one above the other in the vertical direction of the jaw.

Eine Ausführungsform eines Backenbrechers der eingangs genannten Art ist beispielsweise der AT-PS ...... (A 1423/85) zu entnehmen. Derartige Backenbrecher, welche als Kniehebel- ­oder Doppelschwingenbrecher ausgebildet sind, dienen dazu, mittlere und große Gesteinsstücke auf einfache und wirkungs­volle Art maschinell zu zerkleinern. Die Verwendung von Kniehebeln zum Antrieb der beweglichen Backe derartiger Backenbrecher erlaubt es, große Brechkräfte einzuleiten, wobei bei bekannten Backenbrechern die Ausbildung zumeist so getroffen war, daß die bewegliche Backe im Bereich des Brechraumeinlaufes um eine Schwenkachse schwenkbar angelenkt war. Die bewegliche Backe war hiebei zumeist geschwungen ausgebildet, um bei relativ hoch und nahe der Symmetrielinie des Brechwinkels gelegenem Gelenkpunkt mit einem Minimum an Reibung während des Brechvorganges sowie einem relativ großen Hub im Bereich des Brechmauls zu arbeiten. Die geschwungene Ausbildung der Backe vergleichmäßigte zwar den Flächen­verschleiß, jedoch war bei derartigen bekannten Konstruk­tionen immer auf Grund der Schwenkbewegung eine dem Material­strom entgegengerichtete Bewegungskomponente zu beobachten. Es wurden eine Reihe von Vorschlägen zur Verbesserung der Geometrie der Anlenkung der Schwinge gemacht. Es wurde bereits vorgeschlagen, zur Verminderung des Verschleißes der Plattenauskleidung die Schwenkachse der in den Seitenwänden des Brechergehäuses oberhalb des Brechraumes schwenkbar gelagerten Brechschwinge innerhalb des von den Brecherbacken­ebenen begrenzten Raumes anzuordnen. Bei einer derartigen Lösung besteht jedoch der Nachteil, daß durch den oberhalb des Brechraum liegenden Teil der Brechschwinge bzw. schwenkbaren Backe, der Brechereinlauf eingeengt und die Materialzuführung behindert wird. Bei Anordnung der Schwenk­achse oberhalb des Brechraumes und entsprechend geschwungener Ausbildung der schwenkbaren Backe, wird der Platzbedarf des Brechers in Höhenrichtung wesentlich vergrößert und es ergibt sich der Nachteil, daß der Hub am Brechraumeinlauf wesentlich geringer als der Hub am Brechraumauslauf ist, wodurch sich eine Verschlechterung des Brechvorganges im oberen Bereich des Brechraumes und damit eine Durchsatzverringerung ergibt.An embodiment of a jaw crusher of the type mentioned at the outset can be found, for example, in AT-PS ...... (A 1423/85). Such jaw crusher, which is designed as a toggle lever or double rocker crusher, is used to machine medium and large pieces of rock in a simple and effective manner. The use of toggle levers for driving the movable jaw of such jaw crushers allows large crushing forces to be introduced, with the design of known jaw crushers mostly being such that the movable jaw was pivoted about a pivot axis in the area of the crushing chamber inlet. The movable jaw was mostly curved in order to work with a pivot point located relatively high and close to the line of symmetry of the crushing angle with a minimum of friction during the crushing process and a relatively large stroke in the area of the crushing jaw. The curved design of the jaw evened out the surface wear, but in such known constructions a movement component opposite to the material flow was always observed due to the swiveling movement. A number of proposals have been made to improve the geometry of the linkage of the swing arm. It has already been proposed to arrange the pivot axis of the crushing rocker pivotally mounted in the side walls of the crusher housing above the crushing chamber in order to reduce the wear of the plate lining within the space delimited by the crusher jaw planes. With such a Solution, however, has the disadvantage that the crusher inlet is restricted and the material feed is impeded by the part of the crushing arm or pivotable jaw lying above the crushing chamber. If the swivel axis is arranged above the crushing chamber and the swivel jaw is designed in a curved manner, the space requirement of the crusher is increased considerably in the vertical direction and there is the disadvantage that the stroke at the crushing chamber inlet is significantly less than the stroke at the crushing chamber outlet, which worsens the Crushing process in the upper area of the crushing chamber and thus a reduction in throughput results.

Ein Backenbrecher der eingangs genannten Art ist beispiels­weise der US-PS 2 738 933 zu entnehmen. Bei diesem bekannten Backenbrecher erfolgt die Abstützung der angetriebenen Backe über einen Hebel, welcher ungefähr mittig an der angetrie­benen Backe angreift und mit seinem anderen Ende am Rahmen des Backenbrechers gelagert ist. Der Antrieb erfolgt an zwei in Höhenrichtung der Backe übereinanderliegenden Angriffs­stellen über Kniehebel, welche von einer mit Exzenternocken versehenen Exzenterwelle beaufschlagt werden. Nachteilig bei diesem bekannten Backenbrecher ist, daß die antreibbare Backe nur in einem Punkt über den Hebel abgestützt ist und somit ein Verschwenken der Backe um eine in der Backenebene liegende Achse nicht zuverlässig ausgeschaltet werden kann. Auf Grund des großen Gewichtes einer derartigen Backe muß der Hebel darüberhinaus massiv ausgebildet sein.A jaw crusher of the type mentioned at the outset can be found, for example, in US Pat. No. 2,738,933. In this known jaw crusher, the driven jaw is supported by a lever which engages approximately centrally on the driven jaw and is supported at the other end on the frame of the jaw crusher. The drive takes place at two points of attack lying one above the other in the height direction of the jaw via toggle levers which are acted upon by an eccentric shaft provided with eccentric cams. A disadvantage of this known jaw crusher is that the drivable jaw is supported only at one point via the lever and thus pivoting of the jaw about an axis lying in the jaw plane cannot be reliably switched off. Due to the great weight of such a jaw, the lever must also be solid.

Die Erfindung zielt nun darauf ab einen Backenbrecher der eingangs genannten Art zu schaffen, bei welchem mit geringer Bauhöhe das Auslangen gefunden werden kann und gleichzeitig Beeinträchtigungen der Zugänglichkeit des Brechereinlaufes vermieden werden. Weiters zielt die Erfindung darauf ab, eine Ausbildung eines Backenbrechers zu schaffen, bei welchem der Brechhub über die Höhe des Brechraumes vergleichmäßigt und in vorteilhafterweise konstant gehalten werden kann. Zur Lösung dieser Aufgabe besteht die erfindungsgemäße Ausbildung des Backenbrechers im wesentlichen darin, daß die bewegbare Gegenbacke über wenigstens zwei, in Höhenrichtung in Abstand voneinander angeordnete Gleitlager oder Wälzlager abgestützt ist. Dadurch, daß die bewegbare Gegenbacke über Gleitlager abgestützt ist, kann diese Gleitlagerung im Bereich der axialen Höhe der bewegbaren Backe untergebracht werden und es kann Bauhöhe eingespart werden. Durch die gleichzeitige Einleitung der Brechkräfte über übereinanderliegende Knie­hebel und übereinander angeordnete Gleitlager, kann der Hub der Backe über die Länge des Brechraumes den Erfordernissen angepaßt und vergleichmäßigt werden. Dadurch, daß die Gleit­lager oder Wälzlager in Höhenrichtung voneinander in Abstand angeordnet sind, können die Brechkräfte sicher aufgenommen werden. Bei Parallelführung der bewegbaren Backe kann hiebei sogar eine rein translatorische Bewegung und damit ein über den gesamten Brechraum gleicher Hub der Backe erzielt werden, wodurch das Gestein hauptsächlich durch Druckbeanspruchung zerkleinert wird und der Reibungsverschleiß wesentlich herabgesetzt wird. Dadurch, daß bei der erfindungsgemäßen Konstruktion eine Schwenkachse für die bewegbare Gegenbacke entfallen kann, bleibt der Brechraum von oben her frei zugänglich und es tritt keine Beeinträchtigung bei der Materialaufgabe auf. Durch die zwei Angriffsstellen wird auch die Belastung der Exzenterwellen geringer und es können die Lager des Kniehebelmechanismus kleiner und leichter dimensio­niert werden.The invention is now aimed at creating a jaw crusher of the type mentioned at the beginning, in which the length can be found with a low overall height and at the same time avoiding impairments of the accessibility of the crusher inlet. The invention further aims to provide a jaw crusher design in which the crushing stroke can be made uniform over the height of the crushing chamber and advantageously kept constant. To the solution This object of the inventive design of the jaw crusher consists essentially in the fact that the movable counter jaw is supported by at least two slide bearings or roller bearings arranged at a distance from one another in the vertical direction. Because the movable counter jaw is supported by slide bearings, this slide bearing can be accommodated in the area of the axial height of the movable jaw and the overall height can be saved. Due to the simultaneous introduction of the crushing forces via superimposed toggle levers and slide bearings arranged one above the other, the stroke of the jaw over the length of the crushing space can be adapted to the requirements and evened out. Because the slide bearings or roller bearings are arranged at a distance from one another in the vertical direction, the refractive powers can be absorbed safely. When the movable jaw is guided in parallel, a purely translational movement and thus an equal stroke of the jaw over the entire crushing space can be achieved, as a result of which the rock is crushed mainly by pressure and the frictional wear is significantly reduced. Because a swivel axis for the movable counter jaw can be omitted in the construction according to the invention, the crushing chamber remains freely accessible from above and there is no impairment in the material feed. The two points of attack also reduce the load on the eccentric shafts and the bearings of the toggle lever mechanism can be made smaller and lighter.

Bei einer Ausbildung, bei welcher die Kniehebel symmetrisch zu einer zwei Exzenternocken aufweisenden Welle angeordnet sind, wird eine Exzenterwelle symmetrisch belastet und auf Grund dieser symmetrischen Belastung können auch die Lager der Exzenterwelle wesentlich kleiner dimensioniert werden.In an embodiment in which the toggle levers are arranged symmetrically to a shaft having two eccentric cams, an eccentric shaft is loaded symmetrically and, due to this symmetrical load, the bearings of the eccentric shaft can also be dimensioned much smaller.

In vorteilhafter Weise sind die Lager als Prismenführung ausgebildet, wodurch eine Parallelführung der Backe erzielt werden kann. Eine vollständige Symmetrie des Antriebes und damit eine Verringerung der Massenkräfte kann dadurch er­reicht werden, daß die Exzenternocken um 180° versetzt angeordnet sind und die bewegbare Backe an den Angriffs­stellen der Kniehebel zu gleichsinniger translatorischer hin­und hergehender Bewegung antreibbar sind. Eine vollständige Parallelführung ergibt sich dann, wenn die bewegliche Backe an beiden Angriffsstellen der Kniehebel zu gleichsinnigem und gleich großem Hub antreibbar ist, wobei bei einer derartigen Ausbildung der Hub im Brechereinlauf gleich groß dem Hub am Brecherauslauf ist. Bei derartigen Ausbildungen wird der Brechvorgang im Vergleich zu bekannten Doppelschwingen­konstruktionen im oberen Bereich des Brechraumes wesentlich verbessert, wodurch insgesamt eine Erhöhung der Durchsatz­leistung erzielt werden kann.The bearings are advantageously designed as a prism guide, as a result of which the jaw is guided in parallel can be. A complete symmetry of the drive and thus a reduction in the inertial forces can be achieved in that the eccentric cams are arranged offset by 180 ° and the movable jaw at the points of attack of the toggle levers can be driven to translatory reciprocating movement in the same direction. Complete parallel guidance is obtained when the movable jaw can be driven to the same direction and with the same stroke at both points of attack of the toggle levers, with such a design the stroke in the crusher inlet being the same size as the stroke at the crusher outlet. With such designs, the crushing process is significantly improved in comparison with known double rocker constructions in the upper region of the crushing chamber, as a result of which an overall increase in throughput can be achieved.

Die Lagerung für die bewegbare Gegenbacke kann in einfacher Weise so ausgebildet sein, daß der bewegbare Backenträger Lagerfortsätze aufweist, welche prismatische Gleitflächen aufweisen, deren Dachkanten zueinander im wesentlichen parallel verlaufen. Mit einer derartigen Lagerung sind beim Brechvorgang auftretende Belastungen ohne weiteres aufnehm­bar, ohne daß dies zu einer Überbeanspruchung des Antriebes oder der Lagerung kommt.The mounting for the movable counter jaw can be designed in a simple manner so that the movable jaw carrier has bearing extensions which have prismatic sliding surfaces, the roof edges of which run essentially parallel to one another. With such a bearing, loads occurring during the breaking process can easily be absorbed without this causing excessive stress on the drive or the bearing.

In bevorzugter Weise sind die Gleit- oder Wälzlager nahe dem oberen und nahe dem unteren Rand der bewegbaren Backe ange­ordnet, wodurch sich bei einem großen Abstand der Lager die auftretenden Brechkräfte aufnehmen lassen und eine stabile und sichere Lagerung und Führung der bewegbaren Backe er­zielen läßt.The sliding or rolling bearings are preferably arranged near the upper and near the lower edge of the movable jaw, as a result of which the refractive forces that occur can be absorbed at a large distance between the bearings and stable and safe mounting and guidance of the movable jaw can be achieved.

Die Erfindung wird nachfolgend an Hand eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles näher er­läutert. In dieser zeigen Fig.1 eine Seitenansicht eines erfindungsgemäßen Backenbrechers teilweise im Schnitt und Fig.2 einen Schnitt nach der Linie II-II der Fig.1 in ver­größerter Darstellung durch eine Seite der Lagerung, wobei Fig.1 einen Schnitt nach der Linie I-I der Fig.2 darstellt.The invention is explained in more detail below on the basis of an exemplary embodiment schematically illustrated in the drawing. 1 shows a side view of a jaw crusher according to the invention, partly in section and 2 shows a section along the line II-II of Figure 1 in an enlarged view through one side of the bearing, wherein Figure 1 shows a section along the line II of Figure 2.

In Fig.1 ist ein Backenbrecher 1 dargestellt, dessen starre Backe 2 an einem Backenträger 3 durch Klammerverschlüsse 4 festgelegt ist. Der Backenträger 3 ist am Gehäuse 5 abge­stützt, wofür Blöcke 6 und Halteschrauben 7 vorgesehen sind, welche den Backenträger 3 in Anlage an die Blöcke 6 halten. Mit 8 sind Rippen des Backenträgers bezeichnet.1 shows a jaw crusher 1, the rigid jaw 2 of which is fixed to a jaw carrier 3 by means of clamp closures 4. The jaw support 3 is supported on the housing 5, for which blocks 6 and retaining screws 7 are provided, which hold the jaw support 3 in contact with the blocks 6. With 8 ribs of the cheek plate are designated.

Die bewegliche Backe 9 ist gleichfalls wieder über einen Klammerverschluß 4 an einem Backenträger 10 festgelegt, welcher Lagerfortsätze 11 trägt, welche nahe dem oberen und dem unteren Rand der Backe 9, d.h. nahe dem Brechereinlauf bzw. -auslauf, angeordnet sind. Die Lagerfortsätze 11 weisen prismatische Gleitflächen 12 auf, welche in ein entsprechend hohlprismatisches Gegenprofil von am Gehäuse 5 festgelegten Lagerschalen 13 eingreifen. Der Antrieb der beweglichen Backe 9 erfolgt über Kniehebel 14 und 15, welche über eine gemeinsame Exzenterwelle 16 mit um 180° versetzten Exzenternocken 17 und 18 angetrieben werden. Bei Rotation der Exzenterwelle 16 wird über die Kniehebel 14 und 15 ein Hub im Sinn des Doppelpfeiles 19 auf die bewegliche Backe 9 aus­geübt. Die Kraftübertragung erfolgt über Druckwalzen 20 und zur Aufrechterhaltung des Kraftschlusses sind Federn 21 zwischen Kniehebeln 22 und dem Gehäuse abgestützt.The movable jaw 9 is also again fixed via a clamp closure 4 on a jaw carrier 10 which carries bearing extensions 11 which are close to the upper and lower edges of the jaw 9, i.e. are arranged near the crusher inlet or outlet. The bearing extensions 11 have prismatic sliding surfaces 12 which engage in a corresponding hollow prismatic counter profile of bearing shells 13 fixed to the housing 5. The movable jaw 9 is driven via toggle levers 14 and 15, which are driven via a common eccentric shaft 16 with eccentric cams 17 and 18 offset by 180 °. When the eccentric shaft 16 rotates, a stroke in the sense of the double arrow 19 is exerted on the movable jaw 9 via the toggle levers 14 and 15. The power transmission takes place via pressure rollers 20 and springs 21 are supported between toggle levers 22 and the housing in order to maintain the frictional connection.

In der Darstellung nach Fig.2 sind die Prismenführungen 12, 13 deutlich ersichtlich, wobei zusätzlich Federteller 23 an der Außenseite des Backenträges 10 dargestellt sind, über welche der Backenträger 10 von Federn an das Gehäuse gezogen wird und damit in Anlage an den Kniehebelübertragungs­mechanismus gehalten wird.The prism guides 12, 13 are clearly visible in the illustration according to FIG. 2, with additional spring plates 23 being shown on the outside of the jaw support 10, via which the jaw support 10 is pulled by springs onto the housing and is thus held in contact with the toggle lever transmission mechanism .

Die Prismenführung 12, 13 führt zu einer Parallelführung der beweglichen Backe 9, wobei der Hub im Brechereinlauf gleich dem Hub im Brecherauslauf auf Grund der symmetrischen Ausge­staltung der Kniehebelübertragungsmechanismen gehalten ist.The prismatic guide 12, 13 leads to a parallel guidance of the movable jaw 9, the stroke in the crusher inlet being kept equal to the stroke in the crusher outlet due to the symmetrical design of the toggle lever transmission mechanisms.

Claims (4)

1. Backenbrecher (1) mit einer ortsfest abgestützten Backe (2) und einer relativ zu dieser Backe zu hin- und hergehender Bewegung antreibbaren Gegenbacke (9), bei welchem die antreibbare Gegenbacke (9) an zwei in Höhenrichtung der Backe übereinanderliegenden Angriffsstellen über Kniehebel (14,15) von einer Exzenterwelle (16) bewegt wird, dadurch ge­kennzeichnet, daß die bewegbare Gegenbacke (9) über wenig­stens zwei, in Höhenrichtung in Abstand voneinander ange­ordnete Gleitlager oder Wälzlager (12,13) abgestützt ist.1. jaw crusher (1) with a stationary supported jaw (2) and a relative to this jaw to reciprocating movement drivable counter jaw (9), in which the drivable counter jaw (9) at two attack points lying one above the other in the vertical direction of the jaw via toggle levers (14, 15) is moved by an eccentric shaft (16), characterized in that the movable counter-jaw (9) is supported by at least two plain bearings or roller bearings (12, 13) which are spaced apart in the vertical direction. 2. Backenbrecher nach Anspruch 1, dadurch gekenn­zeichnet, daß die Lager als Prismenführung (12,13) ausge­bildet sind.2. Jaw crusher according to claim 1, characterized in that the bearings are designed as a prismatic guide (12, 13). 3. Backenbrecher nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß der bewegbare Backenträger (10) Lagerfortsätze (11) aufweist, welche prismatische Gleitflächen (12) auf­weisen, deren Dachkanten zueinander im wesentlichen parallel verlaufen.3. Jaw crusher according to claim 1 or 2, characterized in that the movable jaw carrier (10) has bearing extensions (11) which have prismatic sliding surfaces (12), the roof edges of which run essentially parallel to one another. 4. Backenbrecher nach einem der Ansprüche 1, 2 oder 3, dadurch gekennzeichnet, daß die Gleit- oder Wälzlager nahe dem oberen und nahe dem unteren Rand der bewegbaren Backe angeordnet sind.4. jaw crusher according to one of claims 1, 2 or 3, characterized in that the sliding or rolling bearings are arranged near the upper and near the lower edge of the movable jaw.
EP87890177A 1986-09-02 1987-07-17 Jaw crusher Withdrawn EP0259296A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT237086A ATA237086A (en) 1986-09-02 1986-09-02 JAW CRUSHERS
AT2370/86 1986-09-02

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EP0259296A2 true EP0259296A2 (en) 1988-03-09
EP0259296A3 EP0259296A3 (en) 1988-06-08

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EP87890177A Withdrawn EP0259296A3 (en) 1986-09-02 1987-07-17 Jaw crusher

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EP (1) EP0259296A3 (en)
AT (1) ATA237086A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10206709A1 (en) * 2002-02-18 2003-08-28 Gerhard Reineck Jaw crusher for stones and other hard objects has fixed and movable jaws set in V-shape with narrow gap at bottom and movable jaw is connected to eccentric drive system
CN103846120A (en) * 2013-05-16 2014-06-11 洛阳宇航重工机械有限公司 Environment-friendly and energy-saving jaw type crushing machine
CN109701679A (en) * 2019-01-30 2019-05-03 江苏省群飞机械制造有限公司 A kind of direct press type jaw crusher

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112403561A (en) * 2020-10-30 2021-02-26 重庆贻晨兴工业设计有限责任公司 Special jaw crusher for stone and using method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB220860A (en) * 1923-11-26 1924-08-28 John Fowler And Company Leeds Improvements in or relating to stone crushing machines
US2044653A (en) * 1934-01-13 1936-06-16 Tyler Co W S Crusher
FR876493A (en) * 1940-12-19 1942-11-06 Crusher-screen-vacuum cleaner-scrubber
US2931585A (en) * 1958-06-30 1960-04-05 Clyde A Butler Rock crusher
SU852345A1 (en) * 1979-04-11 1981-08-07 Специальное Конструкторское Бюро Поконструированию Технологическогооборудования Для Обогащения Руд"Скб Механобр" Jaw-type vibration crusher
EP0201477A2 (en) * 1985-05-10 1986-11-12 Maschinenfabrik Liezen Gesellschaft m.b.H. Jaw crusher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB220860A (en) * 1923-11-26 1924-08-28 John Fowler And Company Leeds Improvements in or relating to stone crushing machines
US2044653A (en) * 1934-01-13 1936-06-16 Tyler Co W S Crusher
FR876493A (en) * 1940-12-19 1942-11-06 Crusher-screen-vacuum cleaner-scrubber
US2931585A (en) * 1958-06-30 1960-04-05 Clyde A Butler Rock crusher
SU852345A1 (en) * 1979-04-11 1981-08-07 Специальное Конструкторское Бюро Поконструированию Технологическогооборудования Для Обогащения Руд"Скб Механобр" Jaw-type vibration crusher
EP0201477A2 (en) * 1985-05-10 1986-11-12 Maschinenfabrik Liezen Gesellschaft m.b.H. Jaw crusher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Sektion Mechanical, Seite 41, Zusammenfassung Nr. G2163, Woche E21, 7. Juli 1982, Derwent Publications Ltd; & SU-A-852 345 (MEKHANOBR ORE ENRIC) 07-08-1981 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10206709A1 (en) * 2002-02-18 2003-08-28 Gerhard Reineck Jaw crusher for stones and other hard objects has fixed and movable jaws set in V-shape with narrow gap at bottom and movable jaw is connected to eccentric drive system
CN103846120A (en) * 2013-05-16 2014-06-11 洛阳宇航重工机械有限公司 Environment-friendly and energy-saving jaw type crushing machine
CN109701679A (en) * 2019-01-30 2019-05-03 江苏省群飞机械制造有限公司 A kind of direct press type jaw crusher

Also Published As

Publication number Publication date
ATA237086A (en) 1991-11-15
EP0259296A3 (en) 1988-06-08

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