EP3504005A1 - Jaw crusher - Google Patents

Jaw crusher

Info

Publication number
EP3504005A1
EP3504005A1 EP17751060.9A EP17751060A EP3504005A1 EP 3504005 A1 EP3504005 A1 EP 3504005A1 EP 17751060 A EP17751060 A EP 17751060A EP 3504005 A1 EP3504005 A1 EP 3504005A1
Authority
EP
European Patent Office
Prior art keywords
crushing
jaw
crusher according
jaw crusher
clamping element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17751060.9A
Other languages
German (de)
French (fr)
Other versions
EP3504005B1 (en
Inventor
Piotr SZCZELINA
Guido Leuschen
Khezr Shariatzadeh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3504005A1 publication Critical patent/EP3504005A1/en
Application granted granted Critical
Publication of EP3504005B1 publication Critical patent/EP3504005B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the invention relates to a jaw crusher for crushing rock material, in particular hard to very hard and abrasive materials.
  • the material is thereby comminuted between a first and a second crushing jaw, wherein at least one of the two crushing jaws is mounted on a crushing rocker.
  • this is braced in the longitudinal direction between a provided on the crushing rocker holder receptacle and at least one coming into operative contact with the clamping jaw clamping element.
  • the clamping element is wedge-shaped and is screwed transversely to the crushing jaw for applying the clamping force.
  • the invention is therefore based on the object to provide a new bracing for the breaking beacons, which allows easier disassembly.
  • the jaw crusher according to the invention for crushing rock material has a first crushing jaw and a second crushing jaw, wherein at least one of the two crushing jaws is supported on a crushing rocker and the crushing jaw in the longitudinal direction between at least one provided on the crushing rocker holder receptacle and at least one coming into operative contact with the crushing jaw Clamping element is clamped.
  • the at least one tensioning element is guided displaceably in a longitudinal direction of the crushing jaw in a guide supported on the crushing rocker.
  • the guide is preferably carried out in the longitudinal direction of the crushing jaw, with a deviating by +/- 10 ° effective direction is also conceivable.
  • the clamping element is preferably wedge-shaped. As a result, the crushing jaw is clamped to a longitudinal direction and at the same time pressed against the crushing jaw.
  • the at least one clamping element is in contact with at least one spring-elastic element, wherein the at least one resilient element has a clamping direction against the crushing jaw oppressive effective direction with clamped crushing jaw.
  • the spring-elastic element not only produces the clamping pressure, but also compensates for an operational longitudinal expansion of the crushing jaw.
  • the crushing jaw can be defined by the spring-elastic element bias.
  • the effective direction of the at least one resilient element is preferably aligned substantially in the longitudinal direction of the crushing jaw. If, for example, two spring-elastic elements are used, they could alternatively also be oriented obliquely to the longitudinal direction of the crushing jaw, when the overall direction of action again points essentially in the longitudinal direction of the crushing jaw.
  • the at least one resilient element can be formed by at least one working cylinder and / or at least one compression spring. It can be provided that the at least one working cylinder and / or the at least one resilient element comes into operative contact with one end with the at least one clamping element and is supported at an opposite end to a provided on the crushing rocker abutment. According to one Embodiment of the invention, the at least one resilient element is formed by at least two parallel to each other and standing in operative contact with the clamping element compression springs. As a result, a clean guidance is ensured and avoid tilting of the clamping element.
  • a pulling device connected to the clamping element can be provided, with which the clamping element is displaceable counter to the effective direction of the at least one resilient element.
  • This pulling device can be formed in particular by a hydraulic or pneumatic pulling cylinder.
  • at least one threaded spindle cooperating with a nut is conceivable as a pulling device.
  • the at least one resilient element is formed by a trained as a tensile and pressure cylinder working cylinder and communicates with the wedge-shaped clamping element for displacement of the wedge-shaped clamping element in the direction of the crushing jaw as well as in the opposite direction.
  • the crushing jaw held on the crushing rocker can be composed of several partial crushing jaws, which are mounted in the longitudinal direction of the crushing jaw one behind the other on the crushing rocker.
  • a plurality of mounting receptacles and a plurality of clamping devices are provided, for example, on the crushing rocker, so that each of the part-breaking jaws is clamped in the longitudinal direction between one of the provided on the crushing rocker holder receptacles and at least one coming into operative contact with the Operabrechbacke clamping devices, each clamping device has at least one clamping element, the is guided displaceably in a guide supported on the crushing rocker substantially in the longitudinal direction of the crushing jaw.
  • pressure adjustment means can be provided for adjusting the pressure force acting on the tensioning element by the at least one resilient element be adapted to the compressive force to the material to be crushed and the stress of the crushing jaw.
  • FIG. 1 is a sectional view of a jaw crusher according to a first embodiment
  • FIG. 2 is a front view in the region of the clamping device of Fig. 1,
  • FIG. 3 is a sectional view taken along the line A - A of Fig. 2,
  • FIG. 5 is a sectional view of a jaw crusher according to a second embodiment
  • FIG. 6 is a front view in the region of the clamping device according to the second embodiment
  • FIG. 7 is a sectional view taken along the line B - B of FIG. 6,
  • FIG. 8 is a sectional view taken along the line C - C of Fig. 6,
  • FIG. 10 is a sectional view of a jaw crusher according to a third embodiment
  • 11 is a detailed view in the region of a first clamping device of the third embodiment
  • 12 is a detailed view in the region of a second clamping device of the third embodiment
  • FIG. 13 shows a detailed representation in the region of a third clamping device of the third exemplary embodiment
  • 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 and a first and a second crushing jaws 3, 4.
  • the first crushing jaw 3 is formed as a vibrating crushing jaw and this is on a crushing rocker 5 mounted.
  • the second crushing jaw 4, however, is arranged on a stationary support structure 6.
  • the crushing rocker 5 has in an upper part of a receptacle 7 for vibrating mounting of the crushing rocker on the jaw crusher.
  • the crushing rocker is driven in this area by means of an eccentric shaft 8.
  • a support region 9 is provided on which the crushing rocker 5 is supported on a pressure plate 10 in a conventional manner.
  • a tie rod 11 ensures constant contact between pressure plate 10 and crushing rocker 5.
  • a crushing gap 12 is formed, in which the rock material to be crushed a compressive stress due to the eccentrically driven first crushing jaw 3 is exposed.
  • the first crushing jaw 3 is clamped in the longitudinal direction between a provided on the crushing rocker arm holder 5 13 and at least one coming into operative contact with the first crushing jaw clamping device 14.
  • the support receptacle 13 is formed for example by an undercut groove in which the lower, complementarily shaped end of the crushing jaw 3 is held.
  • the clamping device 14 has two clamping elements 18 arranged side by side. In principle, however, only one or more than two are Clamping conceivable. In the following, only one of the two clamping elements 18 will be discussed in more detail.
  • the design in the region of the other clamping element is constructed analogously.
  • Each of the two wedge-shaped clamping elements 18 is guided displaceably in a longitudinal direction of the first crushing jaw 3 in a guide 15 supported on the crushing rocker arm.
  • the guide 15 is formed here by two U-profiles 15a, 15b (FIG. 4).
  • the clamping element 18 is pressed against the crushing jaw 3, wherein the working cylinder is supported on an abutment 17.
  • the guide 15 and the abutment 17 are attached to the crushing rocker, for example by screwing or otherwise releasably or permanently.
  • the effective direction of the working cylinder 16 is aligned in the longitudinal direction 3 a of the first crushing jaw 3, wherein the working cylinder via a pressure medium connection 19 with a pressure medium (in particular oil or air) is acted upon.
  • the pressure medium can be supplied manually or automatically. If necessary, the pressure medium connection 19 is connected to a pressure accumulator, not shown in connection.
  • the first crushing jaw is not only acted upon in the longitudinal direction 3 a of the crushing jaw 3, but is also pressed in the transverse direction on the crushing rocker 5.
  • the pressure exerted by the cylinder pressure is such that a secure mounting of the first crushing jaw is ensured on the crushing rocker arm.
  • a pulling device 20 connected to the tensioning element 18 which displaces the tensioning element 18 counter to the effective direction of the working cylinder 16.
  • the pulling device is formed here by two threaded spindles 20a, 20b fixedly connected to the clamping element 18, which cooperate with compression springs 20c, 20d for retracting the wedge-shaped clamping element 18.
  • the compression springs are supported on the side facing away from the clamping element 18 of the abutment 17.
  • the pressure required for retraction is set by means of nuts 20e, 20f, which are screwed onto the threaded spindles 20a, 20b with washers 20g, 20h.
  • a second embodiment of a jaw crusher is shown, which differs from the first embodiment only by the clamping device 14 '.
  • the same reference numerals are used below for the same components.
  • the clamping element 18 of the second embodiment is in turn guided in a guide 15 (U-profiles 15 a, 15 b) in the longitudinal direction 3 a of the first crushing jaw 3.
  • two spring-elastic elements are provided for each clamping element 18, which are formed here by a first and a second compression spring 21a, 21b (in particular disc springs) which have one end on the clamping element 18 and the other end on a shoulder 22a or 22b of two threaded rods 23 a, 23 b supported.
  • the pressure exerted by the compression springs 21a, 21b on the tensioning element 18 pressure can be adjusted by nuts 24a, 24b.
  • a pulling device is provided, which is formed here by a hydraulic or pneumatic pulling cylinder 25 which is connected via a rod 26 with the clamping element 18.
  • the clamping force acting on the clamping element 18 is generated by the prestressed compression springs 21a, 21b.
  • the clamping pressure is established by the working cylinder 16, while the pulling device is formed by the compression springs 20c, 20d.
  • the working cylinder 16 of the first embodiment is designed as a double-acting cylinder (hydraulic or pneumatic), so that it can perform both the pressure and the traction.
  • the lateral threaded spindles with the compression springs 20c, 20d are then dispensable or serve essentially only for holding the clamping element in the expanded state of the crushing jaw third
  • a third embodiment of a jaw crusher is still shown, which is characterized in that the held on the crushing rocker 5 crushing jaw of several Sectionbrechbacken 3a, 3b, 3c composed, in the longitudinal direction of the crushing jaw in succession to the crushing rocker fifth are held.
  • a plurality of mounting receptacles 13a, 13b, 13c and a plurality of clamping devices 14a, 14b, 14c are provided on the crushing rocker 5, so that each of the partbreaking jaws 3a, 3b, 3c in the longitudinal direction between one provided on the crushing rocker holder receptacles 13a, 13b, 13c and at least one the tensioning devices 14a, 14b, 14c coming into operative contact with the part-breaking jaw 3a, 3b, 3c are clamped, each tensioning device 14a, 14b, 14c having at least one tensioning element which can be displaced in a guide supported on the crushing rocker 5 substantially in the longitudinal direction of the crushing jaw is guided.
  • the tensioning devices 14a, 14b, 14c may, for example, be designed in accordance with the variants illustrated in FIGS. 1 to 9.
  • the abutments for the clamping devices 14b and 14c can be formed in particular by the immediately above it arranged support receptacles 13a and 13b.
  • clamping devices 14, 14 ", 14a, 14b, 14c
  • cover or encapsulation for clamping devices to protect them from damage due to the breaking process.
  • All three embodiments are characterized by a simple and quick way to disassemble the first crushing jaw 3.

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

Abstract

The invention relates to a jaw crusher for comminuting rock material, which jaw crusher has a first crushing jaw (3) and a second crushing jaw (4), wherein at least one of the two crushing jaws is retained on a crushing rocker (5) and the crushing jaw is clamped in the longitudinal direction between at least one retaining holder (13), which is provided on the crushing rocker, and at least one clamping element (18), which comes into operative contact with the crushing jaw. The at least one clamping element is guided for sliding substantially in the longitudinal direction (3a) of the crushing jaw in a guide (55), which is retained on the crushing rocker.

Description

Backenbrecher  jaw crusher
Die Erfindung betrifft einen Backenbrecher zur Zerkleinerung von Gesteinsmaterial, insbesondere harten bis sehr harten und abrasiven Materialien. The invention relates to a jaw crusher for crushing rock material, in particular hard to very hard and abrasive materials.
Das Material wird dabei zwischen einer ersten und einer zweiten Brechbacke zerkleinert, wobei wenigstens eine der beiden Brechbacken an einer Brechschwinge gehaltert ist. Zur Befestigung der Brechbacke wird diese in Längsrichtung zwischen einer an der Brechschwinge vorgesehenen Halterungsaufnahme und wenigstens einem mit der Brechbacke in Wirkkontakt kommenden Spannelement verspannt. In der DE 1 219 774 A ist ein Backenbrecher offenbart, dessen Spannelement keilförmig ausgebildet ist und zum Aufbringen der Spannkraft quer zur Brechbacke verschraubt wird. The material is thereby comminuted between a first and a second crushing jaw, wherein at least one of the two crushing jaws is mounted on a crushing rocker. To attach the crushing jaw this is braced in the longitudinal direction between a provided on the crushing rocker holder receptacle and at least one coming into operative contact with the clamping jaw clamping element. In DE 1 219 774 A a jaw crusher is disclosed, the clamping element is wedge-shaped and is screwed transversely to the crushing jaw for applying the clamping force.
Da sich die Brechbacken im Betrieb um einige Millimeter ausdehnen und das keilförmige Spannelement meist selbsthemmend ausgebildet ist, ist die Demontage der Brechbacken oft mit großem Aufwand verbunden, wobei die Keile teilweise auch zerstört werden müssen. Since the crushing jaws extend during operation by a few millimeters and the wedge-shaped clamping element is usually self-locking, the dismantling of the crushing jaws is often associated with great effort, the wedges must be partially destroyed.
Der Erfindung liegt daher die Aufgabe zugrunde, eine neue Verspannung für die Brechbaken anzugeben, die eine einfachere Demontage ermöglicht. The invention is therefore based on the object to provide a new bracing for the breaking beacons, which allows easier disassembly.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. According to the invention, this object is solved by the features of claim 1.
Der erfindungsgemäße Backenbrecher zur Zerkleinerung von Gesteinsmaterial weist eine erste Brechbacke und eine zweite Brechbacke auf, wobei wenigstens eine der beiden Brechbacken an einer Brechschwinge gehaltert ist und die Brechbacke in Längsrichtung zwischen wenigstens einer an der Brechschwinge vorgesehenen Halterungsaufnahme und wenigstens einem mit der Brechbacke in Wirkkontakt kommenden Spannelement verspannt ist. Das wenigstens eine Spannelement ist dabei in einer an der Brechschwinge gehalterten Führung im Wesentlichen in Längsrichtung der Brechbacke verschiebbar geführt. Die Führung erfolgt vorzugsweise in Längsrichtung der Brechbacke, wobei eine um +/-10° abweichende Wirkrichtung aber auch denkbar ist. The jaw crusher according to the invention for crushing rock material has a first crushing jaw and a second crushing jaw, wherein at least one of the two crushing jaws is supported on a crushing rocker and the crushing jaw in the longitudinal direction between at least one provided on the crushing rocker holder receptacle and at least one coming into operative contact with the crushing jaw Clamping element is clamped. The at least one tensioning element is guided displaceably in a longitudinal direction of the crushing jaw in a guide supported on the crushing rocker. The guide is preferably carried out in the longitudinal direction of the crushing jaw, with a deviating by +/- 10 ° effective direction is also conceivable.
Eine Verstellung des Spannelements in Längsrichtung der Brechbacke vereinfacht die Demontage, da sich das Spannelement nach Aufhebung des Spanndrucks in Richtung der sich durch den Betrieb eingestellten Längendehnung der Brechbacke verschieben lässt. An adjustment of the clamping element in the longitudinal direction of the crushing jaw simplifies disassembly, since the clamping element can be moved in the direction of the adjustment of the clamping jaw set by the operation of the clamping jaw after cancellation of the clamping pressure.
Weitere Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Further embodiments of the invention are the subject of the dependent claims.
Das Spannelement ist vorzugsweise keilförmig ausgebildet. Hierdurch wird die Brechbacke zum einen in Längsrichtung eingespannt und gleichzeitig gegen die Brechbacke gedrückt. The clamping element is preferably wedge-shaped. As a result, the crushing jaw is clamped to a longitudinal direction and at the same time pressed against the crushing jaw.
Gemäß einer weiteren Ausgestaltung der Erfindung steht das wenigstens eine Spannelement mit wenigstens einem federelastischen Element in Kontakt, wobei das wenigstens eine federelastische Element bei eingespannter Brechbacke eine das Spannelement gegen die Brechbacke drückende Wirkrichtung hat. Das federelastische Element stellt nicht nur den Einspanndruck her, sondern kompensiert auch eine betriebsbedingte Längenausdehnung der Brechbacke. Außerdem lässt sich die Brechbacke durch das federelastische Element definiert vorspannen. Die Wirkrichtung des wenigstens einen federelastischen Elements ist vorzugsweise im Wesentlichen in Längsrichtung der Brechbacke ausgerichtet. Werden beispielsweise zwei federelastische Elemente verwendet, könnten diese alternativ auch schräg zur Längsrichtung der Brechbacke ausgerichtet sein, wenn die Gesamtwirkrichtung wiederum im Wesentlichen in Längsrichtung der Brechbacke zeigt. According to a further embodiment of the invention, the at least one clamping element is in contact with at least one spring-elastic element, wherein the at least one resilient element has a clamping direction against the crushing jaw oppressive effective direction with clamped crushing jaw. The spring-elastic element not only produces the clamping pressure, but also compensates for an operational longitudinal expansion of the crushing jaw. In addition, the crushing jaw can be defined by the spring-elastic element bias. The effective direction of the at least one resilient element is preferably aligned substantially in the longitudinal direction of the crushing jaw. If, for example, two spring-elastic elements are used, they could alternatively also be oriented obliquely to the longitudinal direction of the crushing jaw, when the overall direction of action again points essentially in the longitudinal direction of the crushing jaw.
Das wenigstens eine federelastische Element kann durch wenigstens einen Arbeitszylinder und/oder wenigstens eine Druckfeder gebildet wird. Dabei kann vorgesehen sein, dass der wenigstens eine Arbeitszylinder und/oder das wenigstens eine federelastische Element mit einem Ende mit dem wenigstens einen Spannelement in Wirkkontakt kommt und sich mit einem gegenüberliegenden Ende an einem an der Brechschwinge vorgesehenen Widerlager abstützt. Gemäß einer Ausführungsform der Erfindung wird das wenigstens eine federelastische Element durch wenigstens zwei parallel zueinander angeordnete und mit dem Spannelement in Wirkkontakt stehende Druckfedern gebildet. Hierdurch wird eine saubere Führung gewährleistet und ein Verkanten des Spannelements vermieden. The at least one resilient element can be formed by at least one working cylinder and / or at least one compression spring. It can be provided that the at least one working cylinder and / or the at least one resilient element comes into operative contact with one end with the at least one clamping element and is supported at an opposite end to a provided on the crushing rocker abutment. According to one Embodiment of the invention, the at least one resilient element is formed by at least two parallel to each other and standing in operative contact with the clamping element compression springs. As a result, a clean guidance is ensured and avoid tilting of the clamping element.
Um die Demontage noch weiter zu vereinfachen kann ferner eine mit dem Spannelement verbundene Zugeinrichtung vorgesehen werden, mit welcher das Spannelement entgegen der Wirkrichtung des wenigstens einen federelastischen Elements verschiebbar ist. Diese Zugeinrichtung kann insbesondere durch einen hydraulischen oder pneumatischen Zugzylinder gebildet werden. Alternativ ist aber auch wenigstens eine mit einer Mutter zusammenwirkende Gewindespindel als Zugeinrichtung denkbar. Gemäß einer weiteren Ausgestaltung der Erfindung wird das wenigstens eine federelastische Element durch einen als Zug- und Druckzylinder ausgebildeten Arbeitszylinder gebildet und steht mit dem keilförmigen Spannelement zur Verschiebung des keilförmigen Spannelements in Richtung der Brechbacke als auch in Gegenrichtung in Verbindung. In order to simplify the dismantling even further, a pulling device connected to the clamping element can be provided, with which the clamping element is displaceable counter to the effective direction of the at least one resilient element. This pulling device can be formed in particular by a hydraulic or pneumatic pulling cylinder. Alternatively, however, at least one threaded spindle cooperating with a nut is conceivable as a pulling device. According to a further embodiment of the invention, the at least one resilient element is formed by a trained as a tensile and pressure cylinder working cylinder and communicates with the wedge-shaped clamping element for displacement of the wedge-shaped clamping element in the direction of the crushing jaw as well as in the opposite direction.
Gemäß einer weiteren Ausgestaltung der Erfindung kann die an der Brechschwinge gehalterte Brechbacke aus mehreren Teilbrechbacken zusammensetzt sein, die in Längsrichtung der Brechbacke hintereinander an der Brechschwinge gehaltert sind. Dabei sind beispielsweise an der Brechschwinge mehrere Halterungsaufnahmen und mehrere Spanneinrichtungen vorgesehen, sodass jede der Teilbrechbacken in Längsrichtung zwischen einer der an der Brechschwinge vorgesehenen Halterungsaufnahmen und wenigstens einer der mit der Teilbrechbacke in Wirkkontakt kommenden Spanneinrichtungen verspannt ist, wobei jede Spanneinrichtung wenigstens ein Spannelement aufweist, das in einer an der Brechschwinge gehalterten Führung im Wesentlichen in Längsrichtung der Brechbacke verschiebbar geführt ist. According to a further embodiment of the invention, the crushing jaw held on the crushing rocker can be composed of several partial crushing jaws, which are mounted in the longitudinal direction of the crushing jaw one behind the other on the crushing rocker. In this case, a plurality of mounting receptacles and a plurality of clamping devices are provided, for example, on the crushing rocker, so that each of the part-breaking jaws is clamped in the longitudinal direction between one of the provided on the crushing rocker holder receptacles and at least one coming into operative contact with the Teilbrechbacke clamping devices, each clamping device has at least one clamping element, the is guided displaceably in a guide supported on the crushing rocker substantially in the longitudinal direction of the crushing jaw.
Des Weiteren können Druckeinstellmittel zur Einstellung der vom wenigstens einen federelastischen Element auf das Spannelement wirkenden Druckkraft vorgesehen werden, um die Druckkraft an das zu brechende Material und die Beanspruchung der Brechbacke anzupassen. Furthermore, pressure adjustment means can be provided for adjusting the pressure force acting on the tensioning element by the at least one resilient element be adapted to the compressive force to the material to be crushed and the stress of the crushing jaw.
Weitere Ausgestaltungen der Erfindung werden anhand der nachfolgenden Beschreibung einiger Ausführungsbeispiele und der Zeichnung näher beschrieben. Further embodiments of the invention will be described with reference to the following description of some embodiments and the drawings.
In der Zeichnung zeigen: In the drawing show:
Fig. 1 eine Schnittdarstellung eines Backenbrechers gemäß einem ersten Ausführungsbeispiel, 1 is a sectional view of a jaw crusher according to a first embodiment,
Fig. 2 eine Vorderansicht im Bereich der Spanneinrichtung der Fig. 1, 2 is a front view in the region of the clamping device of Fig. 1,
Fig. 3 eine Schnittdarstellung längs der Linie A - A der Fig. 2, 3 is a sectional view taken along the line A - A of Fig. 2,
Fig. 4 eine dreidimensionale Darstellung im Bereich der Spanneinrichtung gemäß dem ersten Ausführungsbeispiel, 4 is a three-dimensional view in the region of the clamping device according to the first embodiment,
Fig. 5 eine Schnittdarstellung eines Backenbrechers gemäß einem zweiten Ausführungsbeispiel, 5 is a sectional view of a jaw crusher according to a second embodiment,
Fig. 6 eine Vorderansicht im Bereich der Spanneinrichtung gemäß dem zweiten Ausführungsbeispiel, 6 is a front view in the region of the clamping device according to the second embodiment,
Fig. 7 eine Schnittdarstellung längs der Linie B - B der Fig. 6, 7 is a sectional view taken along the line B - B of FIG. 6,
Fig. 8 eine Schnittdarstellung längs der Linie C - C der Fig. 6, 8 is a sectional view taken along the line C - C of Fig. 6,
Fig. 9 eine dreidimensionale Darstellung im Bereich der Spanneinrichtung gemäß dem zweiten Ausführungsbeispiel, 9 is a three-dimensional representation in the region of the clamping device according to the second embodiment,
Fig. 10 eine Schnittdarstellung eines Backenbrechers gemäß einem dritten Ausführungsbeispiel, 10 is a sectional view of a jaw crusher according to a third embodiment,
Fig. 11 eine Detaildarstellung im Bereich einer ersten Spanneinrichtung des dritten Ausführungsbeispiels, Fig. 12 eine Detaildarstellung im Bereich einer zweiten Spanneinrichtung des dritten Ausführungsbeispiels und 11 is a detailed view in the region of a first clamping device of the third embodiment, 12 is a detailed view in the region of a second clamping device of the third embodiment and
Fig. 13 eine Detaildarstellung im Bereich einer dritten Spanneinrichtung des dritten Ausführungsbeispiels 13 shows a detailed representation in the region of a third clamping device of the third exemplary embodiment
Fig. 1 zeigt einen Backenbrecher zur Zerkleinerung von Gesteinsmaterial mit einem Einlass 1 für das Gesteinsmaterial, einem Auslass 2 für zerkleinertes Gesteinsmaterial sowie einer ersten und einer zweiten 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 am Backenbrecher auf. Die Brechschwinge wird in diesem Bereich mittels einer exzentrischen Welle 8 angetrieben. In einem unteren Teil der Brechschwinge 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 and a first and a second crushing jaws 3, 4. The first crushing jaw 3 is formed as a vibrating crushing jaw and this is on a crushing rocker 5 mounted. The second crushing jaw 4, however, is arranged on a stationary support structure 6. The crushing rocker 5 has in an upper part of a receptacle 7 for vibrating mounting of the crushing rocker on the jaw crusher. The crushing rocker is driven in this area by means of an eccentric shaft 8. In a lower part of the crushing rocker a support region 9 is provided on which the crushing rocker 5 is supported on a pressure plate 10 in a conventional manner. A tie rod 11 ensures constant contact between pressure plate 10 and crushing rocker 5. Between the two crushing jaws 3, 4, a crushing gap 12 is formed, in which the rock material to be crushed a compressive stress due to the eccentrically driven first crushing jaw 3 is exposed.
Die erste Brechbacke 3 ist in Längsrichtung zwischen einer an der Brechschwinge 5 vorgesehenen Halterungsaufnahme 13 und wenigstens einer mit der ersten Brechbacke 3 in Wirkkontakt kommenden Spanneinrichtung 14 verspannt. Die Halterungsaufnahme 13 wird beispielsweise durch eine hinterschnittene Nut gebildete, in der das untere, komplementär ausgebildete Ende der Brechbacke 3 gehalten wird. The first crushing jaw 3 is clamped in the longitudinal direction between a provided on the crushing rocker arm holder 5 13 and at least one coming into operative contact with the first crushing jaw clamping device 14. The support receptacle 13 is formed for example by an undercut groove in which the lower, complementarily shaped end of the crushing jaw 3 is held.
Anhand der Fig. 2 bis 4 wird im Folgenden die Befestigung der ersten Brechbacke 3 im Bereich der Spanneinrichtung 14 näher erläutert. Aus der Vorderansicht der Fig. 2 ist ersichtlich, dass die Spanneinrichtung 14 zwei nebeneinander angeordnete Spannelemente 18 aufweist. Prinzipiell sind aber auch nur ein oder mehr als zwei Spannelemente denkbar. Im Folgenden wird nur auf eines der beiden Spannelemente 18 näher eingegangen. Die Ausgestaltung im Bereich des anderen Spannelements ist analog aufgebaut. Jedes der beiden keilförmig ausgebildeten Spannelemente 18 ist in einer an der Brechschwinge gehalterten Führung 15 im Wesentlichen in Längsrichtung der ersten Brechbacke 3 verschiebbar geführt. Die Führung 15 wird hier durch zwei U-Profile 15a, 15b gebildet (Fig. 4). The fastening of the first crushing jaw 3 in the region of the tensioning device 14 will be explained in more detail below with reference to FIGS. 2 to 4. From the front view of Fig. 2 it can be seen that the clamping device 14 has two clamping elements 18 arranged side by side. In principle, however, only one or more than two are Clamping conceivable. In the following, only one of the two clamping elements 18 will be discussed in more detail. The design in the region of the other clamping element is constructed analogously. Each of the two wedge-shaped clamping elements 18 is guided displaceably in a longitudinal direction of the first crushing jaw 3 in a guide 15 supported on the crushing rocker arm. The guide 15 is formed here by two U-profiles 15a, 15b (FIG. 4).
Über einen als Arbeitszylinder 16 ausgebildetes federelastisches Element wird das Spannelement 18 gegen die Brechbacke 3 gedrückt, wobei sich der Arbeitszylinder an einem Widerlager 17 abstützt. Die Führung 15 und das Widerlager 17 sind an der Brechschwinge, beispielsweise durch Verschraubung oder auf andere Art und Weise lösbar oder unlösbar befestigt. Die Wirkrichtung des Arbeitszylinders 16 ist in Längsrichtung 3 a der ersten Brechbacke 3 ausgerichtet, wobei der Arbeitszylinder über einen Druckmittelanschluss 19 mit einem Druckmittel (insbesondere Öl oder Luft) beaufschlagt wird. Das Druckmittel kann manuell oder automatisiert zugeführt werden. Erforderlichenfalls steht der Druckmittelanschluss 19 mit einem nicht näher dargestellten Druckspeicher in Verbindung. Durch die Keilform des Spannelements 18 wird die erste Brechbacke nicht nur in Längsrichtung 3 a der Brechbacke 3 beaufschlagt, sondern wird auch in Querrichtung auf die Brechschwinge 5 gedrückt. Der vom Arbeitszylinder ausgeübte Druck ist so bemessen, dass eine sichere Halterung der ersten Brechbacke auf der Brechschwinge gewährleistet ist. About a trained as a working cylinder 16 spring-elastic element, the clamping element 18 is pressed against the crushing jaw 3, wherein the working cylinder is supported on an abutment 17. The guide 15 and the abutment 17 are attached to the crushing rocker, for example by screwing or otherwise releasably or permanently. The effective direction of the working cylinder 16 is aligned in the longitudinal direction 3 a of the first crushing jaw 3, wherein the working cylinder via a pressure medium connection 19 with a pressure medium (in particular oil or air) is acted upon. The pressure medium can be supplied manually or automatically. If necessary, the pressure medium connection 19 is connected to a pressure accumulator, not shown in connection. Due to the wedge shape of the clamping element 18, the first crushing jaw is not only acted upon in the longitudinal direction 3 a of the crushing jaw 3, but is also pressed in the transverse direction on the crushing rocker 5. The pressure exerted by the cylinder pressure is such that a secure mounting of the first crushing jaw is ensured on the crushing rocker arm.
Zur Demontage der ersten Brechbacke 3 ist eine mit dem Spannelement 18 verbundene Zugeinrichtung 20 vorgesehen, die das Spannelement 18 entgegen der Wirkrichtung des Arbeitszylinders 16 verschiebt. Die Zugeinrichtung wird hier durch zwei mit dem Spannelement 18 fest verbundene Gewindespindeln 20a, 20b gebildet, die mit Druckfedern 20c, 20d zum Zurückziehen des keilförmigen Spannelements 18 zusammenwirken. Die Druckfedern stützen sich dabei auf der dem Spannelement 18 abgewandten Seite des Widerlagers 17 ab. Der zum Zurückziehen erforderliche Druck wird über Muttern 20e, 20f eingestellt, die mit Zwischenscheiben 20g, 20h auf die Gewindespindeln 20a, 20b aufgeschraubt sind. Sobald die erste Brechbacke 3 entfernt werden soll, wird der Arbeitszylinder 16 entlastet, sodass es durch die vorgespannten Druckfedern 20c, 20d zum Zurückziehen des Spannelements 18 kommt. Die Druckfedern 20c, 20d werden dabei entlastet. For disassembly of the first crushing jaw 3, a pulling device 20 connected to the tensioning element 18 is provided which displaces the tensioning element 18 counter to the effective direction of the working cylinder 16. The pulling device is formed here by two threaded spindles 20a, 20b fixedly connected to the clamping element 18, which cooperate with compression springs 20c, 20d for retracting the wedge-shaped clamping element 18. The compression springs are supported on the side facing away from the clamping element 18 of the abutment 17. The pressure required for retraction is set by means of nuts 20e, 20f, which are screwed onto the threaded spindles 20a, 20b with washers 20g, 20h. Once the first crushing jaw 3 is to be removed, the working cylinder 16 is relieved, so that it through the biased compression springs 20c, 20d for retracting the clamping element 18 comes. The compression springs 20c, 20d are relieved.
In den Fig. 5 bis 9 ist eine zweites Ausführungsbeispiel eines Backenbrechers dargestellt, das sich vom ersten Ausführungsbeispiel nur durch die Spanneinrichtung 14' unterscheidet. Zum leichteren Verständnis werden nachfolgend für gleiche Bauteile auch dieselben Bezugszeichen verwendet. 5 to 9, a second embodiment of a jaw crusher is shown, which differs from the first embodiment only by the clamping device 14 '. For ease of understanding, the same reference numerals are used below for the same components.
Das Spannelement 18 des zweiten Ausführungsbeispiels ist wiederum in einer Führung 15 (U-Profile 15 a, 15b) in Längsrichtung 3 a der ersten Brechbacke 3 geführt. Zum Aufbau des Spanndrucks sind für jedes Spannelement 18 zwei federelastische Elemente vorgesehen, die hier durch eine erste und eine zweite Druckfeder 21a, 21b (insbesondere Tellerfedern) gebildet werden, die sich mit einem Ende am Spannelement 18 und mit dem anderen Ende an einem Absatz 22a bzw. 22b zweier Gewindestangen 23 a, 23b abstützen. Der von den Druckfedern 21a, 21b auf das Spannelement 18 ausgeübte Druck kann über Muttern 24a, 24b eingestellt werden. The clamping element 18 of the second embodiment is in turn guided in a guide 15 (U-profiles 15 a, 15 b) in the longitudinal direction 3 a of the first crushing jaw 3. In order to build up the clamping pressure, two spring-elastic elements are provided for each clamping element 18, which are formed here by a first and a second compression spring 21a, 21b (in particular disc springs) which have one end on the clamping element 18 and the other end on a shoulder 22a or 22b of two threaded rods 23 a, 23 b supported. The pressure exerted by the compression springs 21a, 21b on the tensioning element 18 pressure can be adjusted by nuts 24a, 24b.
Auch bei diesem Ausführungsbeispiel ist eine Zugeinrichtung vorgesehen, die hier durch einen hydraulischen oder pneumatischen Zugzylinder 25 gebildet wird, der über eine Stange 26 mit dem Spannelement 18 verbunden ist. Die auf das Spannelement 18 wirkende Spannkraft wird durch die vorgespannten Druckfedern 21a, 21b erzeugt. Beim Demontieren der ersten Brechbacke wird der Zugzylinder mit Druck beaufschlagt und zieht das Spannelement gegen die Kraft der Druckfedern 21a, 21b von der Brechbacke weg. Also in this embodiment, a pulling device is provided, which is formed here by a hydraulic or pneumatic pulling cylinder 25 which is connected via a rod 26 with the clamping element 18. The clamping force acting on the clamping element 18 is generated by the prestressed compression springs 21a, 21b. When dismantling the first crushing jaw of the pull cylinder is pressurized and pulls the clamping element against the force of the compression springs 21a, 21b away from the crushing jaw.
Beim ersten Ausführungsbeispiel wird der Spanndruck durch den Arbeitszylinder 16 aufgebaut, während die Zugvorrichtung durch die Druckfedern 20c, 20d gebildet wird. Im Rahmen der Erfindung wäre aber auch ein drittes Ausführungsbeispiel denkbar, bei dem der Arbeitszylinder 16 des ersten Ausführungsbeispiels als doppeltwirkender Zylinder (hydraulisch oder pneumatisch) ausgebildet ist, sodass dieser sowohl die Druck- als auch die Zugarbeit verrichten kann. Die seitlichen Gewindespindeln mit den Druckfedern 20c, 20d sind dann entbehrlich oder dienen im Wesentlichen nur noch zum Halten des Spannelements im ausgebauten Zustand der Brechbacke 3. In the first embodiment, the clamping pressure is established by the working cylinder 16, while the pulling device is formed by the compression springs 20c, 20d. In the context of the invention, however, a third embodiment would be conceivable in which the working cylinder 16 of the first embodiment is designed as a double-acting cylinder (hydraulic or pneumatic), so that it can perform both the pressure and the traction. The lateral threaded spindles with the compression springs 20c, 20d are then dispensable or serve essentially only for holding the clamping element in the expanded state of the crushing jaw third
In den Fig. 10 bis 13 ist noch eine drittes Ausführungsbeispiel eines Backenbrechers dargestellt, das sich dadurch auszeichnet, dass sich die an der Brechschwinge 5 gehalterte Brechbacke aus mehreren Teilbrechbacken 3a, 3b, 3c zusammensetzt, die in Längsrichtung der Brechbacke hintereinander an der Brechschwinge 5 gehaltert sind. Dazu sind an der Brechschwinge 5 mehrere Halterungsaufnahmen 13a, 13b, 13c und mehrere Spanneinrichtungen 14a, 14b, 14c vorgesehen, sodass jede der Teilbrechbacken 3a, 3b, 3c in Längsrichtung zwischen einer der an der Brechschwinge vorgesehenen Halterungsaufnahmen 13a, 13b, 13c und wenigstens einer der mit der Teilbrechbacke 3a, 3b, 3c in Wirkkontakt kommenden Spanneinrichtungen 14a, 14b, 14c verspannt ist, wobei jede Spanneinrichtung 14a, 14b, 14c wenigstens ein Spannelement aufweist, das in einer an der Brechschwinge 5 gehalterten Führung im Wesentlichen in Längsrichtung der Brechbacke verschiebbar geführt ist. 10 to 13, a third embodiment of a jaw crusher is still shown, which is characterized in that the held on the crushing rocker 5 crushing jaw of several Teilbrechbacken 3a, 3b, 3c composed, in the longitudinal direction of the crushing jaw in succession to the crushing rocker fifth are held. For this purpose, a plurality of mounting receptacles 13a, 13b, 13c and a plurality of clamping devices 14a, 14b, 14c are provided on the crushing rocker 5, so that each of the partbreaking jaws 3a, 3b, 3c in the longitudinal direction between one provided on the crushing rocker holder receptacles 13a, 13b, 13c and at least one the tensioning devices 14a, 14b, 14c coming into operative contact with the part-breaking jaw 3a, 3b, 3c are clamped, each tensioning device 14a, 14b, 14c having at least one tensioning element which can be displaced in a guide supported on the crushing rocker 5 substantially in the longitudinal direction of the crushing jaw is guided.
Die Spanneinrichtungen 14a, 14b, 14c können beispielsweise gemäß den in den Fig. l bis Fig. 9 dargestellten Varianten ausgebildet sein. Die Widerlager für die Spanneinrichtungen 14b und 14c können dabei insbesondere durch die unmittelbar darüber angeordneten Halterungsaufnahmen 13a bzw. 13b gebildet werden. The tensioning devices 14a, 14b, 14c may, for example, be designed in accordance with the variants illustrated in FIGS. 1 to 9. The abutments for the clamping devices 14b and 14c can be formed in particular by the immediately above it arranged support receptacles 13a and 13b.
Wenngleich in den dargestellten Ausführungsbeispielen kein besonderer Schutz der Spanneinrichtungen (14, 14" , 14a, 14b, 14c) dargestellt wurde, kann es dennoch zweckmäßig sein, eine geeignete Abdeckung oder Abkapselung für Spanneinrichtungen vorzusehen, um sie vor Beschädigungen aufgrund des Brechvorgangs zu schützen. Although in the illustrated embodiments, no particular protection of the clamping devices (14, 14 ", 14a, 14b, 14c) has been shown, it may still be appropriate to provide a suitable cover or encapsulation for clamping devices to protect them from damage due to the breaking process.
Alle drei Ausführungsbeispiele zeichnen sich durch eine einfache und schnelle Möglichkeit zur Demontage der ersten Brechbacke 3 aus. All three embodiments are characterized by a simple and quick way to disassemble the first crushing jaw 3.

Claims

Patentansprüche : Claims:
1. Backenbrecher zur Zerkleinerung von Gesteinsmaterial mit einer ersten Brechbacke (3) und einer zweiten Brechbacke (4), wobei wenigstens eine der beiden Brechbacken (3) an einer Brechschwinge (5) gehaltert ist, wobei die Brechbacke in Längsrichtung zwischen wenigstens einer an der Brechschwinge vorgesehenen Halterungsaufnahme (13) und wenigstens einem mit der Brechbacke (3) in Wirkkontakt kommenden Spannelement (18) verspannt ist, dadurch gekennzeichnet, dass das wenigstens eine Spannelement (18) in einer an der Brechschwinge (5) gehalterten Führung (15) im Wesentlichen in Längsrichtung (3a) der Brechbacke (3) verschiebbar geführt ist. 1. jaw crusher for crushing rock material with a first crushing jaw (3) and a second crushing jaw (4), wherein at least one of the two crushing jaws (3) on a crushing rocker (5) is supported, wherein the crushing jaw in the longitudinal direction between at least one of the Characterized in that the at least one clamping element (18) in a on the crushing rocker (5) salaried guide (15) in the Essentially in the longitudinal direction (3a) of the crushing jaw (3) is displaceably guided.
2. Backenbrecher nach Anspruch 1, dadurch gekennzeichnet, dass das wenigstens eine Spannelement (18) keilförmig ausgebildet ist. 2. jaw crusher according to claim 1, characterized in that the at least one clamping element (18) is wedge-shaped.
3. Backenbrecher nach Anspruch 1, dadurch gekennzeichnet, dass das wenigstens eine Spannelement (18) mit wenigstens einem federelastischen (16, 21a, 21b) Element in Kontakt steht, wobei das wenigstens eine federelastische Element bei eingespannter Brechbacke (3) eine das Spannelement (18) gegen die Brechbacke drückende Wirkrichtung hat. 3. jaw crusher according to claim 1, characterized in that the at least one clamping element (18) with at least one resilient (16, 21 a, 21 b) element in contact, said at least one resilient element with clamped crushing jaw (3) a the clamping element ( 18) against the crushing jaw oppressive effective direction.
4. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass die4. jaw crusher according to claim 3, characterized in that the
Wirkrichtung des wenigstens einen federelastischen Elements (16, 21a, 21b) in Längsrichtung der Brechbacke ausgerichtet ist. Direction of action of the at least one resilient element (16, 21a, 21b) is aligned in the longitudinal direction of the crushing jaw.
5. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass wenigstens eine federelastische Element durch wenigstens einen Arbeitszylinder (16) und/oder wenigstens eine Druckfeder (21a, 21b) gebildet wird. 5. jaw crusher according to claim 3, characterized in that at least one resilient element by at least one working cylinder (16) and / or at least one compression spring (21 a, 21 b) is formed.
6. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass das wenigstens eine federelastische Element (16, 21a, 21b) mit einem Ende mit dem wenigstens einen Spannelement (18) in Wirkkontakt kommt und sich mit einem gegenüberliegenden Ende an einem an der Brechschwinge (5) vorgesehenen Widerlager (17) abstützt. 6. jaw crusher according to claim 3, characterized in that the at least one resilient element (16, 21 a, 21 b) having one end with the at least one tensioning element (18) comes into operative contact and is supported with an opposite end on an abutment (17) provided on the crushing rocker (5).
7. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass das wenigstens eine federelastische Element durch wenigstens zwei parallel zueinander angeordnete und mit dem Spannelement (18) in Wirkkontakt stehende Druckfedern (21a, 21b) gebildet wird. 7. jaw crusher according to claim 3, characterized in that the at least one resilient element by at least two mutually parallel and with the clamping element (18) in operative contact compression springs (21 a, 21 b) is formed.
8. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass ferner eine mit dem Spannelement (18) verbundene Zugeinrichtung (20, 25) vorgesehen ist, mit welcher das Spannelement (18) entgegen der Wirkrichtung des wenigstens einen federelastischen Elements (16, 21a, 21b) verschiebbar ist. 8. jaw crusher according to claim 3, characterized in that further comprising a with the clamping element (18) connected pulling device (20, 25) is provided, with which the clamping element (18) counter to the effective direction of the at least one resilient element (16, 21 a, 21 b ) is displaceable.
9. Backenbrecher nach Anspruch 8, dadurch gekennzeichnet, dass die9. jaw crusher according to claim 8, characterized in that the
Zugeinrichtung durch einen hydraulischen oder pneumatischen Zugzylinder (25) gebildet wird. Drawbar is formed by a hydraulic or pneumatic pull cylinder (25).
10. Backenbrecher nach Anspruch 9, dadurch gekennzeichnet, dass der hydraulische oder pneumatische Zugzylinder (25) mit einem Druckspeicher in Verbindung steht. 10. jaw crusher according to claim 9, characterized in that the hydraulic or pneumatic pulling cylinder (25) is in communication with a pressure accumulator.
11. Backenbrecher nach Anspruch 8, dadurch gekennzeichnet, dass die11. jaw crusher according to claim 8, characterized in that the
Zugeinrichtung (20) durch wenigstens eine mit einer Mutter (20e, 20f) zusammenwirkende Gewindespindel (20a, 20b) gebildet wird. Pulling device (20) by at least one with a nut (20e, 20f) cooperating threaded spindle (20a, 20b) is formed.
12. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass das wenigstens eine federelastische Element durch einen als Zug- und Druckzylinder ausgebildeten Arbeitszylinder gebildet wird und mit dem keilförmigen Spannelement (18) zur Verschiebung des keilförmigen Spannelements in Richtung auf die Brechbacke (3) als auch in Gegenrichtung in Verbindung steht. 12. jaw crusher according to claim 3, characterized in that the at least one resilient element is formed by a trained as a tensile and pressure cylinder working cylinder and with the wedge-shaped clamping element (18) for displacement of the wedge-shaped clamping element in the direction of the crushing jaw (3) as well in the opposite direction.
13. Backenbrecher nach Anspruch 3, dadurch gekennzeichnet, dass13. Jaw crusher according to claim 3, characterized in that
Druckeinstellmittel zur Einstellung der vom wenigstens einen federelastischen Element auf das Spannelement (18) wirkenden Druckkraft vorgesehen sind. Pressure setting means for adjusting the at least one resilient element on the clamping element (18) acting pressure force are provided.
14. Backenbrecher nach Anspruch 1, dadurch gekennzeichnet, dass sich die an der Brechschwinge gehalterte Brechbacke aus mehreren Teilbrechbacken (3 a, 3b, 3c) zusammensetzt, die in Längsrichtung der Brechbacke hintereinander an der Brechschwinge gehaltert sind. 14. Jaw crusher according to claim 1, characterized in that the crushing jaw held on the crushing jaw of several Teilbrechbacken (3 a, 3b, 3c) composed, which are supported in the longitudinal direction of the crushing jaw one behind the other on the crushing rocker arm.
15. Backenbrecher nach Anspruch 14, dadurch gekennzeichnet, dass an der15. jaw crusher according to claim 14, characterized in that at the
Brechschwinge mehrere Halterungsaufnahmen (13a, 13b, 13c) und mehrere Spanneinrichtungen (14a, 14b, 14c) vorgesehen sind, sodass jede der Teilbrechbacken (3a, 3b, 3c) in Längsrichtung zwischen einer der an der Brechschwinge vorgesehenen Halterungsaufnahmen (13a, 13b, 13c) und wenigstens einer der mit der Teilbrechbacke (3a, 3b, 3c) in Wirkkontakt kommenden Spanneinrichtungen (14a, 14b, 14c) verspannt ist, wobei jede Spanneinrichtung (14a, 14b, 14c) wenigstens ein Spannelement aufweist, das in einer an der Brechschwinge (5) gehalterten Führung im Wesentlichen in Längsrichtung der Brechbacke verschiebbar geführt ist. Breaking rocker a plurality of support receptacles (13a, 13b, 13c) and a plurality of tensioning means (14a, 14b, 14c) are provided, so that each of the part breaker jaws (3a, 3b, 3c) in the longitudinal direction between one of the provided on the breaker arm support receptacles (13a, 13b, 13c ) and at least one of the part-breaking jaw (3a, 3b, 3c) coming into operative contact clamping devices (14a, 14b, 14c) is braced, each clamping device (14a, 14b, 14c) has at least one clamping element, in one of the crushing rocker (5) guided guide is displaceably guided substantially in the longitudinal direction of the crushing jaw.
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FI125063B (en) * 2013-12-05 2015-05-15 Metso Minerals Inc Clamping element, clamping device, jaw crusher, plant for processing mineral materials and method for adjusting the tension of a wear part
JP6509556B2 (en) * 2014-12-22 2019-05-08 株式会社アーステクニカ Jaw crusher
CN204469775U (en) * 2015-01-28 2015-07-15 浙江泰正钼业开发有限公司 A kind of new type jaw crusher

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EP3504005B1 (en) 2020-05-13
CN109641214A (en) 2019-04-16
WO2018036758A1 (en) 2018-03-01
DK3504005T3 (en) 2020-08-10
BR112019003528A2 (en) 2019-05-21
CN109641214B (en) 2021-06-22
DE102016115585B3 (en) 2017-07-20

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