EP0440188A1 - Jaw crusher with vibrator drive - Google Patents

Jaw crusher with vibrator drive Download PDF

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Publication number
EP0440188A1
EP0440188A1 EP91101200A EP91101200A EP0440188A1 EP 0440188 A1 EP0440188 A1 EP 0440188A1 EP 91101200 A EP91101200 A EP 91101200A EP 91101200 A EP91101200 A EP 91101200A EP 0440188 A1 EP0440188 A1 EP 0440188A1
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Prior art keywords
crushing
jaw
vibrators
crusher
springs
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EP91101200A
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German (de)
French (fr)
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Paul Böhringer
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Individual
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Individual
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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

Definitions

  • the invention relates to a jaw crusher with vertical or horizontal loading of the crusher chamber, which narrows in the direction of material flow, and which is formed between two crushing jaws, at least one of which is provided with a crushing stroke drive which engages on the rear side of the crusher jaw facing away from the crushing chamber.
  • a known jaw crusher of this type (DE-PS 38 03 496) has a crushing jaw rocker suspended at one end in the crusher housing and having an eccentric drive as the crushing stroke drive.
  • Such an eccentric drive consists of an electric motor built on the crusher, which rotates an eccentric shaft via a belt drive, which is provided with large flywheels arranged on the side. Starting from the eccentric shaft, the circumferential movement is converted into a back and forth movement with which the crushing jaw rocker is acted upon via a pressure plate.
  • Such an eccentric drive has proven itself for breaking hard rock and for crushing recycling material. Due to the selected drive, however, a correspondingly stable design and foundation are necessary.
  • the great powers of the Eccentric drives driven by centrifugal masses also require complex overload protection in order to prevent the system from breaking due to force when the crushing jaw swing is blocked. Finally, because of the many exposed moving parts, this form of drive is of operational reliability that can be improved.
  • Jaw crushers with a hydraulic drive are also known (DE-AS 11 29 040). Overload protection is of course also required here. Because of the hydraulic drive, an overpressure valve serves as overload protection, which automatically reduces the pressurization when an overload is detected and then follows a new breaking stroke.
  • jaw crushers double rocker crusher, DE-OS 16 07 610
  • both crushing jaws delimiting the crushing space are designed as crushing jaw rockers.
  • the elements of the power transmission from one jaw to the other can be used for overload protection.
  • Such jaw crushers are used for pre-crushing and post-crushing.
  • correspondingly expensive drives were previously considered necessary, because otherwise the necessary refractive powers could not be applied.
  • the drives lead to corresponding sudden stresses on the mechanically moving parts, which in turn have to be diverted into the housing and the housing foundation.
  • Correspondingly stable and then complex designs are required.
  • the object of the invention is to design a jaw crusher which is particularly suitable as a secondary crusher in such a way that the stress on the housing and the foundation is reduced so that the crushing result remains the same, so that civils can be found here with a simpler and lighter design.
  • This object is achieved by the invention characterized in the claims.
  • the invention is based on the surprising knowledge that when using a crushing stroke drive consisting of two vibrators mounted side by side and transversely to the direction of material flow on the back of the crushing jaw, a crushing result that is at least satisfactory for secondary crusher is achieved with considerably smaller impact loads.
  • the use of two vibrators is suitable to allow such coordination and superimposition that, on the one hand, sufficient refractive power is ensured for the respective breaking process, but, on the other hand, the stress on the housing is caused by the introduction at different points of, if necessary, different forces with different vibration patterns and foundation can be reduced so that a considerably lighter design is sufficient.
  • This requires the use of more than one vibrator. Because the vibrators can work together with regard to the refractive power, but with regard to the load on the housing and the foundation, the variety of design options with two vibrators can result in considerably more favorable conditions.
  • one of the two vibrators directly in the area of the outlet gap of the crushing chamber, where the greatest crushing forces are to be applied.
  • the other vibrator is expediently arranged next to the material flow direction.
  • the two vibrators are each provided with an independently adjustable unbalance. In this way, optimization can be easily achieved by appropriate setting by appropriate adjustment of stroke frequency and stroke amplitude of the individual vibrators, which act on the crushing jaw at different points with different leverage.
  • a further advantage is obtained when the crushing jaw is suspended in the housing via springs with adjustable spring forces. Because in this case there is another possibility to intervene in the vibration behavior of the jaw crusher via the springs and their reaction forces to the refractive forces exerted by the vibrators.
  • the springs also have the advantage that in a certain, relatively large refractive power range, overload protection with the corresponding design effort is not required. By opening the crushing jaws against the spring forces and expanding the crushing chamber, unbreakable material can escape and leave the crushing chamber without destroying the jaw crusher.
  • the closed design of the vibrators also brings safety-related advantages. Exposed belt drives and mechanically moving parts as in conventional eccentric drives no longer occur here. It is also obvious that because of the possibility of controlling the vibrators according to frequency and amplitude when designing the jaw crusher as a horizontal crusher, the drive by the two vibrators can be used not only for the application of the crushing forces, but also for the crushed material to transport the corresponding amplitude overlay through the crushing chamber, i.e. to ensure the flow of material. Furthermore, due to the drive by the two vibrators, feed chute and discharge chute, insofar as they are integrated in the system, can also be used for screening due to the vibrating drive, without the need for separate sieve constructions.
  • one or a plurality of movable crushing jaws can additionally be acted upon by a hydraulic cylinder.
  • the entire crushing jaw is adjusted with the vibrators built on its back.
  • the hydraulic cylinder can only serve to adjust the crushing gap according to the requirements of the material to be manufactured.
  • the crushing power of the vibrators can also be increased according to requirements by additional hydraulic cylinders acting on the crushing jaw. It is of course possible to provide a conventional overload protection by pressure limitation with the help of a pressure relief valve. If the movable crushing jaw is designed as a crushing jaw swing, then a hydraulic cylinder is sufficient. With more complex storage of the crushing jaw in the housing, several hydraulic cylinders can also engage on one and the same crushing jaw.
  • a jaw crusher 10 is here in an embodiment with a vertical crushing chamber 12 and an overhead loading mouth 14.
  • a crusher jaw 18 is fixedly mounted in the crusher housing 16.
  • this jaw 18 can be moved in the Crusher housing 16 suspended and provided with the vibrator drive explained here only for the other jaw 20.
  • the jaws 18 and 20 are provided with replaceable wear parts 22. They are arranged in such a way that the crushing chamber 12 narrows in the direction of material flow, that is to say from top to bottom, and reaches the narrowest point in the region of the outlet gap 24 located below.
  • the movable crushing jaw 20 in turn has wear parts 22 on its side facing the crushing chamber.
  • vibrators 26 and 28 On the back there are two vibrators 26 and 28.
  • the construction of such vibrators is known. They essentially consist of an electric motor, the two shaft ends of which are guided out of the housing and provided with unbalance weights. The unbalance weights are interchangeable and their relative position can be adjusted on the shaft. If the same unbalance weights are arranged diametrically opposite each other on both shaft ends, the vibrator runs unbalanced.
  • the shaking frequency and shaking stroke can be influenced by adjusting the angular position of the radially arranged weights. Both are transferred directly to the movable jaw 20 via the vibrator housing of the vibrators 26, 28.
  • the vibrator 26 is placed on the crushing jaw 20 directly in the area of the outlet gap 25 in such a way that the shaft of the vibrator lies parallel to the level of the crushing jaw 20, but transverse to the direction of crop flow through the crushing chamber 12.
  • the second vibrator 28 is arranged directly next to the vibrator 26, but is located from the exit gap 24 in the direction of the loading mouth 14. It is thus offset from the direction of the crop flow. Otherwise, its arrangement corresponds to that of the vibrator 26.
  • the connecting line of the shafts of the two vibrators 26 and 28 is therefore parallel to the crushing jaw 20.
  • the vibrators can be of different sizes, but are preferably the same, as indicated in the figure Size selected for both vibrators 26 and 28. It is obvious that the vibrators influence the movement behavior differently due to their different points of attack on the jaw 20. It is also obvious that the vibrators 26 and 28 can be adjusted independently of one another, so that this already provides options for setting the refractive power, the breaking stroke and the breaking frequency, as well as for directional superimpositions in the direction of crop flow, which provide support for the conveyance. This is of little importance in the case of vertically situated crushing chamber 12. However, it can replace its own conveyor, for example a chain conveyor, with the crushing chamber 12 lying horizontally.
  • the crushing jaw 20 is suspended in the crusher housing 16 by means of two spring assemblies, namely a spring 30 and a spring 32. These springs can also be adjusted by appropriate pretensioning (as indicated in the figure) and thus provide an additional possibility of influencing the vibration behavior of the crushing jaw 20 Influence of the drive of the vibrators 26, 28.
  • the spring 30 acts in a direction of action which represents the extension of the connecting line of the shafts of the two vibrators 26 and 28.
  • the spring 30 is parallel to the jaw 20 behind this. It is arranged above the vibrators 26, 28, as the figure shows.
  • the other spring 32 engages with the perpendicular direction of action on the crushing jaw 20 in such a way that it is perpendicular to the center of the connecting line of the shaft axis of the vibrators 26 and 28. Their point of attack on the crushing jaw 20 is thus, as can be seen in the figure, on the back of the crushing jaw between the vibrators 26 and 28.
  • the springs 30 and 32 are present in pairs, so that they are on the side outside the crushing chamber reach past this. In this way it is also possible to arrange the spring 32 in the manner shown in the figure so that it also reaches past the crushing jaw 18 on the outside and is thus arranged laterally outside the crushing chamber 12 starting from the crushing jaw 20. Both springs 30 and 32 or the majority of the corresponding springs are supported on the crusher housing 16 accordingly.
  • the figure further shows that the crushing jaw 20 has at its lower end a bend 34, on which the piston rod 36 engages a hydraulic cylinder 38, which is provided with a power connection 40 for supplying power to the valves integrated in the hydraulic cylinder 38.
  • the hydraulic cylinder 38 is horizontal, as shown in the figure. If the crushing jaw 20 is designed as a crushing jaw rocker with a suspension at its upper end, the crushing jaw 18 can thus be moved towards the crushing jaw 20 by the hydraulic cylinder 38 and thereby reduce the outlet gap 24 or increase the crushing force on the material to be crushed which is guided through the crushing chamber 12 .
  • the hydraulic cylinder 38 thus produces a basic setting which overlays the breaking action of the two vibrators 26 and 28.
  • hydraulic cylinders 38 are also provided and can act on the jaw 20 at appropriate points. It is also obvious that the hydraulic cylinders 38 can be provided in the usual way with an overload protection in the form of a pressure relief valve.

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

Abstract

A jaw crusher is provided firstly with a crusher lifting drive in the form of two shaking elements (26, 28) mounted on the rear of the crushing jaw (20). Surprisingly, this produces a degree of crushing power which is satisfactory for many applications (for example second crushing), but at the same time reduces the stressing of crusher and base considerably so that extraction can occur with a more light-weight construction. <IMAGE>

Description

Die Erfindung betrifft einen Backenbrecher mit vertikaler oder horizontaler Beschickung des sich in Gutflußrichtung verengenden Brechraumes, der zwischen zwei Brechbacken ausgebildet ist, von den zumindest die eine mit einem an der von der vom Brechraum abgewandten Rückseite der Brechbacke angreifenden Brechhubantrieb versehen ist.The invention relates to a jaw crusher with vertical or horizontal loading of the crusher chamber, which narrows in the direction of material flow, and which is formed between two crushing jaws, at least one of which is provided with a crushing stroke drive which engages on the rear side of the crusher jaw facing away from the crushing chamber.

Ein bekannter Backenbrecher dieser Art (DE-PS 38 03 496) weist eine einendig im Brechergehäuse aufgehängte Brechbackenschwinge auf, die als Brechhubantrieb einen Excenterantrieb hat. Ein derartiger Excenterantrieb besteht aus einem auf dem Brecher aufgebauten Elektromotor, der über einen Riemenantrieb eine Excenterwelle in Umlauf versetzt, die mit seitlich angeordneten großen Schwungmassen versehen ist. Ausgehend von der Excenterwelle wird die umlaufende Bewegung in eine hin- und hergehende Bewegung umgesetzt, mit der über eine Druckplatte die Brechbackenschwinge beaufschlagt wird. Ein derartiger Excenterantrieb ist zum Brechen harten Gesteins und zum Zerkleinern von Recyclingmaterial bewährt. Aufgrund des gewählten Antriebes ist aber eine entsprechend stabile Ausführung und Fundamentierung notwendig. Die großen Kräfte des durch die Schwungmassen angetriebenen Excenterantriebes erfordern auch eine aufwendige Überlastungssicherung, um einen Gewaltbruch der Anlage bei Blockierung der Brechbackenschwinge zu vermeiden. Schließlich ist diese Form des Antriebs wegen der vielen freililegenden beweglichen Teile von verbesserungsfähiger Betriebssicherheit.A known jaw crusher of this type (DE-PS 38 03 496) has a crushing jaw rocker suspended at one end in the crusher housing and having an eccentric drive as the crushing stroke drive. Such an eccentric drive consists of an electric motor built on the crusher, which rotates an eccentric shaft via a belt drive, which is provided with large flywheels arranged on the side. Starting from the eccentric shaft, the circumferential movement is converted into a back and forth movement with which the crushing jaw rocker is acted upon via a pressure plate. Such an eccentric drive has proven itself for breaking hard rock and for crushing recycling material. Due to the selected drive, however, a correspondingly stable design and foundation are necessary. The great powers of the Eccentric drives driven by centrifugal masses also require complex overload protection in order to prevent the system from breaking due to force when the crushing jaw swing is blocked. Finally, because of the many exposed moving parts, this form of drive is of operational reliability that can be improved.

Es ist auch schon bekannt (DE-OS 15 07 672), derartige Excenterantriebe so auszugestalten, daß der Antrieb mittels Hydraulikzylinder auf die Brechbacke übertragen wird. Es wird dann der maximal zu übertragende Druck durch eine einstellbare Druckfederung oder einen am Hydraulikzylinder einstellbaren Maximaldruck vorgewählt.It is also known (DE-OS 15 07 672) to design such eccentric drives so that the drive is transferred to the crushing jaw by means of hydraulic cylinders. The maximum pressure to be transmitted is then preselected by an adjustable pressure suspension or a maximum pressure that can be set on the hydraulic cylinder.

Bekannt sind auch schon Backenbrecher mit hydraulischem Antrieb (DE-AS 11 29 040). Auch hier ist natürlich ein Überlastungsschutz erforderlich. Wegen des hydraulischen Antriebes dient als Überlastungsschutz ein Überdruckventil, das bei festgestellter Überlast die Druckbeaufschlagung selbsttätig abbaut und auf hierauf einen erneuten Brechhub folgen läßt.Jaw crushers with a hydraulic drive are also known (DE-AS 11 29 040). Overload protection is of course also required here. Because of the hydraulic drive, an overpressure valve serves as overload protection, which automatically reduces the pressurization when an overload is detected and then follows a new breaking stroke.

Bekannt sind selbstverständlich auch Backenbrecher (Doppelschwingenbrecher, DE-OS 16 07 610), bei denen beide den Brechraum begrenzende Brechbacken als Brechbackenschwingen ausgebildet sind. Zum Überlastungsschutz können hier die Elemente der Brechkraftübertragung von einer Brechbackenschwinge zur anderen eingesetzt werden.Of course, jaw crushers (double rocker crusher, DE-OS 16 07 610) are also known, in which both crushing jaws delimiting the crushing space are designed as crushing jaw rockers. The elements of the power transmission from one jaw to the other can be used for overload protection.

Derartige Backenbrecher werden zum Vorbrechen und zum Nachbrechen eingesetzt. In jedem Fall wurden bisher entsprechend aufwendige Antriebe für notwendig erachtet, weil sonst die notwendigen Brechkräfte nicht aufgebracht werden konnten. Die Antriebe führen zu entsprechenden schlagartigen Beanspruchungen der mechanisch beweglichen Teile, die wiederum in das Gehäuse und das Gehäusefundament abgeleitet werden müssen. Entsprechend stabile und dann auch aufwendige Bauweisen sind erforderlich.Such jaw crushers are used for pre-crushing and post-crushing. In any case, correspondingly expensive drives were previously considered necessary, because otherwise the necessary refractive powers could not be applied. The drives lead to corresponding sudden stresses on the mechanically moving parts, which in turn have to be diverted into the housing and the housing foundation. Correspondingly stable and then complex designs are required.

Aufgabe der Erfindung ist es, einen insbesondere als Nachbrecher geeigneten Backenbrecher so auszugestalten, daß bei gleichbleibendem Brechergebnis die Beanspruchung von Gehäuse und Fundament so vermindert wird, daß hier mit einfacherer und leichterer Bauweise das Auskommen gefunden werden kann. Diese Aufgabe wird durch die in den Ansprüchen gekennzeichnete Erfindung gelöst.The object of the invention is to design a jaw crusher which is particularly suitable as a secondary crusher in such a way that the stress on the housing and the foundation is reduced so that the crushing result remains the same, so that livelihoods can be found here with a simpler and lighter design. This object is achieved by the invention characterized in the claims.

Der Erfindung liegt die überraschende Kenntnis zugrunde, daß bei Verwendung eines Brechhubantriebes aus zwei Rüttlern nebeneinander und quer zur Gutflußrichtung auf die Rückseite der Brechbacke montiert, ein zumindest für Nachbrecher befriedigendes Brechergebnis bei erheblich kleineren Schlagbelastungen erzielt wird. Insbesondere ist die Verwendung von zwei Rüttlern geeignet, eine derartige Abstimmung und Überlagerung zu gestatten, daß einerseits eine für den jeweiligen Brechvorgang ausreichende Brechkraft sichergestellt wird, andererseits aber durch die Einleitung an unterschiedlichen Stellen von bei Bedarf auch unterschiedlichen Kräften mit unterschiedlichem Schwingungsverlauf die Beanspruchung von Gehäuse und Fundament so reduziert werden kann, daß hier eine erheblich leichtere Bauweise ausreicht. Hierfür ist die Verwendung von mehr als einem Rüttler Voraussetzung. Denn die Rüttler können bezüglich der Brechkraft zusammenwirken, bezüglich der Belastung von Gehäuse und Fundament aber durch die Vielfalt der Gestaltungsmöglichkeiten bei zwei Rüttlern erheblich günstigere Verhältnisse bewirken.The invention is based on the surprising knowledge that when using a crushing stroke drive consisting of two vibrators mounted side by side and transversely to the direction of material flow on the back of the crushing jaw, a crushing result that is at least satisfactory for secondary crusher is achieved with considerably smaller impact loads. In particular, the use of two vibrators is suitable to allow such coordination and superimposition that, on the one hand, sufficient refractive power is ensured for the respective breaking process, but, on the other hand, the stress on the housing is caused by the introduction at different points of, if necessary, different forces with different vibration patterns and foundation can be reduced so that a considerably lighter design is sufficient. This requires the use of more than one vibrator. Because the vibrators can work together with regard to the refractive power, but with regard to the load on the housing and the foundation, the variety of design options with two vibrators can result in considerably more favorable conditions.

Selbstverständlich ist es zweckmäßig, den einen der beiden Rüttler unmittelbar im Bereich des Austrittsspaltes des Brechraumes anzuordnen, wo die größten Brechkräfte aufzubringen sind. Der andere Rüttler wird zweckmäßig gegen die Gutflußrichtung versetzt neben diesem angeordnet.Of course, it is expedient to arrange one of the two vibrators directly in the area of the outlet gap of the crushing chamber, where the greatest crushing forces are to be applied. The other vibrator is expediently arranged next to the material flow direction.

Bezüglich der Optimierung der Schwingungsbelastung ist es weiter vorteilhaft, wenn die beiden Rüttler je für sich mit unabhängig voneinander einstellbarem Unwuchten versehen sind. Denn auf diese Weise kann durch entsprechende Einstellung von Hubfrequenz und Hubamplitude der einzelnen Rüttler, die an der Brechbacke an unterschiedlichen Stellen mit unterschiedlicher Hebelwirkung angreifen, eine Optimierung durch entsprechende Einstellung leicht erzielt werden.With regard to the optimization of the vibration load, it is further advantageous if the two vibrators are each provided with an independently adjustable unbalance. In this way, optimization can be easily achieved by appropriate setting by appropriate adjustment of stroke frequency and stroke amplitude of the individual vibrators, which act on the crushing jaw at different points with different leverage.

Ein weiterer Vorteil ergibt sich dann, wenn die Brechbacke im Gehäuse über Federn mit einstellbaren Federkräften aufgehängt ist. Denn in diesem Fall gibt es noch eine weitere Eingriffsmöglichkeit in das Schwingungsverhalten des Backenbrechers über die Federn und ihre Reaktionskräfte auf die von den Rüttlern ausgeübten Brechkräfte. Die Federn haben überdies den Vorteil, daß in einem gewissen, relativ großen Brechkraftbereich eine Überlastsicherung mit dem entsprechenden konstruktiven Aufwand nicht erforderlich ist. Denn durch Öffnung der Brechbacken gegen die Federkräfte unter Erweiterung des Brechraumes kann ohne Zerstörung des Backenbrechers unbrechbares Material austreten und den Brechraum verlassen.A further advantage is obtained when the crushing jaw is suspended in the housing via springs with adjustable spring forces. Because in this case there is another possibility to intervene in the vibration behavior of the jaw crusher via the springs and their reaction forces to the refractive forces exerted by the vibrators. The springs also have the advantage that in a certain, relatively large refractive power range, overload protection with the corresponding design effort is not required. By opening the crushing jaws against the spring forces and expanding the crushing chamber, unbreakable material can escape and leave the crushing chamber without destroying the jaw crusher.

Es liegt auf der Hand, daß die geschlossene Bauweise der Rüttler überdies sicherheitstechnische Vorteile erbringt. Freiliegende Riementriebe und mechanisch gegeneinander bewegte Teile wie beim herkömmlichen Excenterantrieb treten hier nicht mehr auf. Es liegt ebenfalls auf der Hand, daß wegen der Möglichkeit der Steuerung der Rüttler nach Frequenz und Amplitude bei der Auslegung des Backenbrechers als Horizontalbrecher der Antrieb durch die beiden Rüttler nicht nur für das Aufbringen der Brechkräfte, sondern auch dafür eingesetzt werden kann, das Brechgut durch entsprechende Amplitudenüberlagerung durch den Brechraum zu transportieren, also den Gutfluß sicherzustellen. Weiter können aufgrund des Antriebs durch die beiden Rüttler Aufgaberinne und Abgaberinne, soweit diese mit in das System integriert sind, aufgrund des Rüttelantriebes auch zur Absiebung benutzt werden, ohne daß hierfür eigene Siebkonstruktionen erforderlich werden. Für alle diese Verstellungen ist nicht nur die Verwendung von Rüttlern unterschiedlicher, vorzugsweise aber gleicher Größe und die Verstellbarkeit der Unwuchten, sondern auch die Beeinflussung der Drehrichtung der Motoren von Bedeutung, die eine entsprechende zusätzliche Gestaltungsmöglichkeit erbringt. Diese reichen Gestaltungsmöglichkeiten können für die Betriebsweise der Maschine, daneben gleichzeitig aber auch für den erschütterungsarmen Lauf optimiert werden.It is obvious that the closed design of the vibrators also brings safety-related advantages. Exposed belt drives and mechanically moving parts as in conventional eccentric drives no longer occur here. It is also obvious that because of the possibility of controlling the vibrators according to frequency and amplitude when designing the jaw crusher as a horizontal crusher, the drive by the two vibrators can be used not only for the application of the crushing forces, but also for the crushed material to transport the corresponding amplitude overlay through the crushing chamber, i.e. to ensure the flow of material. Furthermore, due to the drive by the two vibrators, feed chute and discharge chute, insofar as they are integrated in the system, can also be used for screening due to the vibrating drive, without the need for separate sieve constructions. For all these adjustments is not only the use of vibrators of different, but preferably the same size and the adjustability of the Unbalance, but also influencing the direction of rotation of the motors, which provides a corresponding additional design option. These rich design options can be optimized for the operation of the machine, but also for the low-vibration operation.

Es liegt auf der Hand, daß eine zusätzliche Ausgestaltung derart möglich ist, daß eine oder eine Mehrzahl beweglicher Brechbacken zusätzlich mit einem Hydraulikzylinder beaufschlagt werden kann. Dabei wird die gesamte Brechbacke mit den auf ihrer Rückseite aufgebauten Rüttlern verstellt. Der Hydraulikzylinder kann dabei lediglich dazu dienen, den Brechspalt den Anforderungen an das herzustellende Material entsprechend einzustellen. Daneben kann aber durch zusätzlich an der Brechbacke angreifende Hydraulikzylinder auch die Brechkraft der Rüttler den Bedürfnissen entsprechend erhöht werden. Dabei ist es selbstverständlich möglich, hier eine übliche Überlastungssicherung durch Druckbegrenzung mit Hilfe eines Druckbegrenzungsventiles vorzusehen. Ist die bewegliche Brechbacke als Brechbackenschwinge ausgebildet, dann wird mit einem Hydrozylinder das Auslangen gefunden. Bei komplexerer Lagerung der Brechbacke im Gehäuse können auch mehrere Hydrozylinder an ein und derselben Brechbacke angreifen.It is obvious that an additional embodiment is possible in such a way that one or a plurality of movable crushing jaws can additionally be acted upon by a hydraulic cylinder. The entire crushing jaw is adjusted with the vibrators built on its back. The hydraulic cylinder can only serve to adjust the crushing gap according to the requirements of the material to be manufactured. In addition, however, the crushing power of the vibrators can also be increased according to requirements by additional hydraulic cylinders acting on the crushing jaw. It is of course possible to provide a conventional overload protection by pressure limitation with the help of a pressure relief valve. If the movable crushing jaw is designed as a crushing jaw swing, then a hydraulic cylinder is sufficient. With more complex storage of the crushing jaw in the housing, several hydraulic cylinders can also engage on one and the same crushing jaw.

Weitere Vorteile, Einzelheiten und Merkmale ergeben sich aus der folgenden Beschreibung der Zeichnung, auf die wegen der erfindungswesentlichen Offenbarung aller im folgenden nicht näher erörterten Einzelheiten ausdrücklich verwiesen wird. Die einzige Figur zeigt eine Ausführungsform der Erfindung in Seitenansicht.Further advantages, details and features emerge from the following description of the drawing, to which express reference is made to all details not discussed in more detail below because of the disclosure essential to the invention. The single figure shows an embodiment of the invention in side view.

Eine Backenbrecher 10 liegt hier in einer Ausführung mit vertikalem Brechraum 12 und oben liegendem Beschickungsmaul 14 vor. Im Brechergehäuse 16 ist eine Brechbacke 18 in der gezeigten Ausführungsform ortsfest montiert. Selbstverständlich kann bei Bedarf aber auch diese Brechbacke 18 beweglich im Brechergehäuse 16 aufgehängt und mit den hier nur für die andere Brechbacke 20 erläuterten Rüttlerantrieb versehen werden. Die Brechbacken 18 und 20 sind mit auswechselbaren Verschleißteilen 22 versehen. Sie sind derart angeordnet, daß sich der Brechraum 12 in Gutflußrichtung, also von oben nach unten verengt und im Bereich des unten liegenden Austrittsspaltes 24 die engste Stelle erreicht.A jaw crusher 10 is here in an embodiment with a vertical crushing chamber 12 and an overhead loading mouth 14. In the embodiment shown, a crusher jaw 18 is fixedly mounted in the crusher housing 16. Of course, if necessary, this jaw 18 can be moved in the Crusher housing 16 suspended and provided with the vibrator drive explained here only for the other jaw 20. The jaws 18 and 20 are provided with replaceable wear parts 22. They are arranged in such a way that the crushing chamber 12 narrows in the direction of material flow, that is to say from top to bottom, and reaches the narrowest point in the region of the outlet gap 24 located below.

Die bewegliche Brechbacke 20 weist wiederum auf ihrer den Brechraum zugekehrten Seite Verschleißteile 22 auf. Auf ihrer Rückseite sitzen zwei Rüttler 26 und 28. Die Konstruktion derartiger Rüttler ist bekannt. Sie bestehen im wesentlichen aus einem Elektromotor, dessen beiden Wellenenden aus dem Gehäuse nach außen geführt und mit Unwuchtgewichten versehen sind. Die Unwuchtgewichte sind austauschbar und bezüglich ihrer relativen Lage verstellbar auf der Welle befestigt. Sind auf beiden Wellenenden gleiche Unwuchtgewichte einander diametral gegenüber angeordnet, dann läuft der Rüttler unwuchtfrei. Durch Verstellen der Winkellage der radial angeordneten Gewichte können Rüttelfrequenz und Rüttelhub beeinflußt werden. Beide werden über das Rüttlergehäuse der Rüttler 26, 28 direkt auf die bewegliche Brechbacke 20 übertragen.The movable crushing jaw 20 in turn has wear parts 22 on its side facing the crushing chamber. On the back there are two vibrators 26 and 28. The construction of such vibrators is known. They essentially consist of an electric motor, the two shaft ends of which are guided out of the housing and provided with unbalance weights. The unbalance weights are interchangeable and their relative position can be adjusted on the shaft. If the same unbalance weights are arranged diametrically opposite each other on both shaft ends, the vibrator runs unbalanced. The shaking frequency and shaking stroke can be influenced by adjusting the angular position of the radially arranged weights. Both are transferred directly to the movable jaw 20 via the vibrator housing of the vibrators 26, 28.

Wie das die Figur zeigt, ist der Rüttler 26 auf die Brechbacke 20 unmittelbar im Bereich des Austrittsspaltes 25 aufgesetzt und zwar derart, daß die Welle des Rüttlers parallel zur Ebene der Brechbacke 20, aber quer zur Gutflußrichtung durch den Brechraum 12 liegt. Der zweite Rüttler 28 ist unmittelbar neben dem Rüttler 26 angeordnet, befindet sich aber vom Austrittsspalt 24 her gesehen in Richtung des Beschickungsmaules 14. Er ist also gegen die Gutflußrichtung versetzt. Im übrigen entspricht seine Anordnung derjenigen des Rüttlers 26. Es liegt somit die Verbindungslinie der Wellen der beiden Rüttler 26 und 28 parallel zur Brechbacke 20.As the figure shows, the vibrator 26 is placed on the crushing jaw 20 directly in the area of the outlet gap 25 in such a way that the shaft of the vibrator lies parallel to the level of the crushing jaw 20, but transverse to the direction of crop flow through the crushing chamber 12. The second vibrator 28 is arranged directly next to the vibrator 26, but is located from the exit gap 24 in the direction of the loading mouth 14. It is thus offset from the direction of the crop flow. Otherwise, its arrangement corresponds to that of the vibrator 26. The connecting line of the shafts of the two vibrators 26 and 28 is therefore parallel to the crushing jaw 20.

Die Rüttler können unterschiedlicher Größe sein, werden aber vorzugsweise, wie in der Figur angedeutet, in gleicher Größe für beide Rüttler 26 und 28 gewählt. Es liegt auf der Hand, daß die Rüttler aufgrund ihrer unterschiedlichen Angriffspunkte an der Brechbacke 20 deren Bewegungsverhalten unterschiedlich beeinflussen. Es liegt weiter auf der Hand, daß die Rüttler 26 und 28 voneinander unabhängig einstellbar sind, so daß hierdurch bereits Möglichkeiten zum Einstellen der Brechkraft, des Brechhubes und der Brechfrequenz, sowie für Richtungsüberlagerungen in Gutflußrichtung besteht, die eine Förderunterstützung erbringen. Diese ist bei vertikal liegenden Brechraum 12 von geringer Bedeutung. Sie kann aber bei horizontal liegendem Brechraum 12 einen eigenen Förderer, beispielsweise einen Kettenförderer ersetzen.The vibrators can be of different sizes, but are preferably the same, as indicated in the figure Size selected for both vibrators 26 and 28. It is obvious that the vibrators influence the movement behavior differently due to their different points of attack on the jaw 20. It is also obvious that the vibrators 26 and 28 can be adjusted independently of one another, so that this already provides options for setting the refractive power, the breaking stroke and the breaking frequency, as well as for directional superimpositions in the direction of crop flow, which provide support for the conveyance. This is of little importance in the case of vertically situated crushing chamber 12. However, it can replace its own conveyor, for example a chain conveyor, with the crushing chamber 12 lying horizontally.

Die Brechbacke 20 ist im Brechergehäuse 16 über zwei Federpakete aufgehängt, nämlich eine Feder 30 und eine Feder 32. Auch diese Federn sind durch entsprechende Vorspannung (wie in der Figur angedeutet) einstellbar und geben somit eine zusätzliche Möglichkeit zur Beeinflussung des Schwingungsverhaltens der Brechbacke 20 unter Einfluß des Antriebs der Rüttler 26, 28.The crushing jaw 20 is suspended in the crusher housing 16 by means of two spring assemblies, namely a spring 30 and a spring 32. These springs can also be adjusted by appropriate pretensioning (as indicated in the figure) and thus provide an additional possibility of influencing the vibration behavior of the crushing jaw 20 Influence of the drive of the vibrators 26, 28.

Wie die Figur zeigt, greift die Feder 30 in einer Wirkrichtung an, die die Verlängerung der Verbindungslinie der Wellen der beiden Rüttler 26 und 28 darstellt. Somit liegt auch die Feder 30 parallel zur Brechbacke 20 hinter dieser. Sie ist über den Rüttlern 26, 28 angeordnet, wie das die Figur zeigt.As the figure shows, the spring 30 acts in a direction of action which represents the extension of the connecting line of the shafts of the two vibrators 26 and 28. Thus, the spring 30 is parallel to the jaw 20 behind this. It is arranged above the vibrators 26, 28, as the figure shows.

Die andere Feder 32 greift mit hierzu lotrechter Wirkrichtung an der Brechbacke 20 an und zwar derart, daß sie auf dem Mittelpunkt der Verbindungslinie der Wellenachse der Rüttler 26 und 28 senkrecht steht. Ihr Angriffspunkt an der Brechbacke 20 liegt somit, wie in der Figur zu erkennen, auf der Rückseite der Brechbacke zwischen den Rüttlern 26 und 28.The other spring 32 engages with the perpendicular direction of action on the crushing jaw 20 in such a way that it is perpendicular to the center of the connecting line of the shaft axis of the vibrators 26 and 28. Their point of attack on the crushing jaw 20 is thus, as can be seen in the figure, on the back of the crushing jaw between the vibrators 26 and 28.

Selbstverständlich sind die Federn 30 und 32 paarweise vorhanden, so daß sie seitlich außerhalb des Brechraumes an diesem vorbeigreifen. Auf diese Weise ist es auch möglich, die Feder 32 auf die in der Figur gezeigte Weise so anzuordnen, daß sie auch an der Brechbacke 18 außen vorbeigreift und somit ausgehend von der Brechbacke 20 seitlich außerhalb des Brechraums 12 angeordnet ist. Beide Federn 30 und 32 bzw. die Mehrzahl der entsprechenden Federn sind am Brechergehäuse 16 entsprechend abgestützt.Of course, the springs 30 and 32 are present in pairs, so that they are on the side outside the crushing chamber reach past this. In this way it is also possible to arrange the spring 32 in the manner shown in the figure so that it also reaches past the crushing jaw 18 on the outside and is thus arranged laterally outside the crushing chamber 12 starting from the crushing jaw 20. Both springs 30 and 32 or the majority of the corresponding springs are supported on the crusher housing 16 accordingly.

Die Figur läßt weiter erkennen, daß die Brechbacke 20 an ihrem unteren Ende eine Abkröpfung 34 aufweist, an der die Kolbenstange 36 eines Hydrozylinders 38 angreift, der mit einem Stromanschluß 40 für die Stromversorgung der in den Hydrozylinder 38 integrierten Ventile versehen ist.The figure further shows that the crushing jaw 20 has at its lower end a bend 34, on which the piston rod 36 engages a hydraulic cylinder 38, which is provided with a power connection 40 for supplying power to the valves integrated in the hydraulic cylinder 38.

Der Hydrozylinder 38 liegt, wie in der Figur gezeigt, horizontal. Falls die Brechbacke 20 als Brechbackenschwinge mit Aufhängung an ihrem oberen Ende ausgeführt ist, kann somit durch den Hydrozylinder 38 die Brechbacke 18 auf die Brechbacke 20 zu bewegt werden und dadurch den Austrittsspalt 24 vermindern bzw. die Brechkraft auf das durch den Brechraum 12 geführte Brechgut erhöhen. Der Hydrozylinder 38 stellt somit eine Grundeinstellung her, der die Brechwirkung der beiden Rüttler 26 und 28 überlagert wird.The hydraulic cylinder 38 is horizontal, as shown in the figure. If the crushing jaw 20 is designed as a crushing jaw rocker with a suspension at its upper end, the crushing jaw 18 can thus be moved towards the crushing jaw 20 by the hydraulic cylinder 38 and thereby reduce the outlet gap 24 or increase the crushing force on the material to be crushed which is guided through the crushing chamber 12 . The hydraulic cylinder 38 thus produces a basic setting which overlays the breaking action of the two vibrators 26 and 28.

Es liegt auf der Hand, daß je nach Art und Weise der Aufhängung der beweglichen Brechbacke 20 auch mehrere derartige Hydrozylinder 38 vorgesehen und an zweckmäßigen Stellen an der Brechbacke 20 angreifen können. Es liegt ebenfalls auf der Hand, daß die Hydrozylinder 38 auf übliche Weise mit einer Überlastsicherung in Form eines Druckbegrenzungsventiles versehen sein können.It is obvious that, depending on the manner of suspension of the movable jaw 20, several such hydraulic cylinders 38 are also provided and can act on the jaw 20 at appropriate points. It is also obvious that the hydraulic cylinders 38 can be provided in the usual way with an overload protection in the form of a pressure relief valve.

Claims (10)

Backenbrecher mit vertikaler oder horizontaler Beschickung des sich in Gutflußrichtung verengenden Brechraumes (12), der zwischen zwei Brechbacken (18, 20) ausgebildet ist, von denen zumindest die eine mit einem an der vom Brechraum abgewandten Rückseite der Brechbacke angreifenden Brechhubantrieb versehen ist,
dadurch gekennzeichnet, daß der Brechhubantrieb aus zwei Rüttlern (26, 28) besteht, die nebeneinander auf der Rückseite der Brechbacke (18) aufgebaut sind.Jaw crusher with vertical or horizontal loading of the crusher chamber (12) narrowing in the direction of material flow, which is formed between two crusher jaws (18, 20), at least one of which is provided with a crushing stroke drive acting on the rear side of the crusher jaw facing away from the crusher chamber,
characterized in that the crushing stroke drive consists of two vibrators (26, 28) which are built side by side on the back of the crushing jaw (18). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der eine der Rüttler (26, 28) unmittelbar neben dem Austrittsspalt (24) des Brechraumes (12), der andere neben diesem gegen die Gutflußrichtung versetzt angeordnet ist.Device according to claim 1,
characterized in that one of the vibrators (26, 28) is arranged directly next to the outlet gap (24) of the crushing chamber (12), the other next to the latter is offset from the direction of material flow. Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die beiden Rüttler (26, 28) je für sich mit unabhängig voneinander einstellbaren Unwuchten versehen sind.Device according to claim 1 or 2,
characterized in that the two vibrators (26, 28) are each provided with independently adjustable unbalances. Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß an der (den) bewegliche(n) Brechbacke(n) zusätzlich mindestens ein in Richtung Austrittsspaltverengung wirkender Hydrozylinder (38) angreift.Device according to one of claims 1 to 3,
characterized in that at least one hydraulic cylinder (38) acting in the direction of the outlet gap constriction also acts on the movable crusher jaw (s). Vorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Brechbacke (18) im Brechergehäuse (16) über Federn (30, 32) mit einstellbaren Federkräften aufgehängt ist.Device according to one of claims 1 to 4,
characterized in that the crushing jaw (18) is suspended in the crusher housing (16) by means of springs (30, 32) with adjustable spring forces. Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet, daß die Brechbacke (18) mit den Rüttlern (26, 28) über zwei Federn bzw. Federpaare im Brechergehäuse (16) aufgehängt ist.Device according to claim 5,
characterized in that the crushing jaw (18) with the vibrators (26, 28) is suspended in the crusher housing (16) by means of two springs or pairs of springs. Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, daß die beiden Federn oder Federpaare in zueinander lotrechten Wirklinien angeordnet sind.Apparatus according to claim 6,
characterized in that the two springs or pairs of springs are arranged in lines of action perpendicular to one another. Vorrichtung nach Anspruch 7,
dadurch gekennzeichnet, daß die eine der Federn (30) an der Brechbacke (18) in Flucht mit der Verbindungslinie der Wellenmittelpunkte der beiden Rüttler (26, 28) angreift.Device according to claim 7,
characterized in that one of the springs (30) acts on the crushing jaw (18) in alignment with the connecting line of the shaft centers of the two vibrators (26, 28). Vorrichtung nach Anspruch 7 oder 8,
dadurch gekennzeichnet, daß die andere Feder (32) lotrecht zur Verbindungslinie der Wellenmittelpunkte der beiden Rüttler (26, 28) angreift.Apparatus according to claim 7 or 8,
characterized in that the other spring (32) acts perpendicular to the connecting line of the shaft centers of the two vibrators (26, 28). Vorrichtung nach Anspruch 9,
dadurch gekennzeichnet, daß der Angriffspunkt in der Mitte zwischen den beiden Rüttlern (26, 28) liegt.Device according to claim 9,
characterized in that the point of attack lies in the middle between the two vibrators (26, 28).
EP91101200A 1990-01-30 1991-01-30 Jaw crusher with vibrator drive Withdrawn EP0440188A1 (en)

Applications Claiming Priority (2)

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DE9001024U DE9001024U1 (en) 1990-01-30 1990-01-30 Jaw crusher with vibrator drive
DE9001024U 1990-01-30

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EP0440188A1 true EP0440188A1 (en) 1991-08-07

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
FR2697175A1 (en) * 1993-11-30 1994-04-29 Concept Ind Crushing and grinding machine using vibratory effects - has two wedge-shaped jaws vibrated at high speed by out-of-balance weight varied in unidirectional force and rotation
EP0641600A2 (en) * 1993-09-07 1995-03-08 Binder & Co. Aktiengesellschaft Crushing device
US6058632A (en) * 1997-11-07 2000-05-09 Hawkins; Peter Arthur Taylor Tool holder with percussion member
DE102013105177A1 (en) 2013-05-21 2014-11-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for obtaining metallic fractions and metal-depleted material from metal-containing materials
CN104668026A (en) * 2015-03-13 2015-06-03 苏州圣谱拉新材料科技有限公司 Vibrating crusher
CN112403568A (en) * 2020-11-04 2021-02-26 姚燕 Automatic change and beat hot pepper seed device

Families Citing this family (2)

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JP2876567B2 (en) * 1995-11-24 1999-03-31 幸典 藤本 Billy crushing method and billy crushing device
CN114383415A (en) * 2022-01-11 2022-04-22 江苏凯华铝业有限公司 Aluminum product processing technology and processing device

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641600A2 (en) * 1993-09-07 1995-03-08 Binder & Co. Aktiengesellschaft Crushing device
EP0641600A3 (en) * 1993-09-07 1995-04-26 Binder Co Ag Crushing device.
FR2697175A1 (en) * 1993-11-30 1994-04-29 Concept Ind Crushing and grinding machine using vibratory effects - has two wedge-shaped jaws vibrated at high speed by out-of-balance weight varied in unidirectional force and rotation
US6058632A (en) * 1997-11-07 2000-05-09 Hawkins; Peter Arthur Taylor Tool holder with percussion member
DE102013105177A1 (en) 2013-05-21 2014-11-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for obtaining metallic fractions and metal-depleted material from metal-containing materials
CN104668026A (en) * 2015-03-13 2015-06-03 苏州圣谱拉新材料科技有限公司 Vibrating crusher
CN104668026B (en) * 2015-03-13 2017-10-13 苏州圣谱拉新材料科技有限公司 A kind of vibro-crusher
CN112403568A (en) * 2020-11-04 2021-02-26 姚燕 Automatic change and beat hot pepper seed device

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Publication number Publication date
DE9001024U1 (en) 1990-04-05
JPH04341350A (en) 1992-11-27

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