EP1174568A1 - Hydraulic crusher - Google Patents
Hydraulic crusher Download PDFInfo
- Publication number
- EP1174568A1 EP1174568A1 EP00115805A EP00115805A EP1174568A1 EP 1174568 A1 EP1174568 A1 EP 1174568A1 EP 00115805 A EP00115805 A EP 00115805A EP 00115805 A EP00115805 A EP 00115805A EP 1174568 A1 EP1174568 A1 EP 1174568A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- demolition
- pliers
- impact mechanism
- pulse impact
- forceps
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G23/082—Wrecking of buildings using shears, breakers, jaws and the like
Definitions
- the invention relates to a hydraulic demolition tongs with two Pliers legs for clamping an object in a holding area.
- Hydraulic demolition tongs are known for demolishing buildings, Concrete walls, masonry and the like. These demolition tongs be attached to the boom of an excavator and operated to crush and / or grasp objects and to spend a desired place. Have demolition tongs compared to the formerly common wrecking ball the advantage that they generate less noise and dirt and a more controlled one Allow demolition. Hydraulic demolition tongs are able to produce large forces of many tons. These However, forces are often insufficient, in particular concrete slabs to crush, especially if in it rebar are included.
- the present invention is based on the object, a to provide hydraulic demolition tongs that is capable of one to effectively smash the object held by it, so that the most common tearing and tugging at contiguous Objects is avoided and the items are better and more effective can be crushed.
- an impulse striking tool which is sudden and extremely short-term delivers strong impulses.
- Such impulses are known from rock crushers and rock drilling devices. you have a hydraulically movable working piston and a also hydraulically operated control piston, which in a control unit is arranged.
- the working piston leads one relatively slow return stroke and fast after passing a control edge with extremely high speed forward, to strike there on an anvil or an abutment.
- Such Impulse actuators also have a gas pressure accumulator, in during the return stroke energy is collected during the working stroke abruptly brought to the working piston to act becomes. With such a pulse impact can High energy shocks are applied, creating concrete and steel can be smashed, so that succeeds between the Clench forceps held object effectively or separate from a larger area.
- the impulse mechanism forms a replaceable, with a own control unit provided unit. It can be mounted as a whole and easily replaced. With that it is possible to a demolition tool a pulse tool of each required Size and impact energy to mounted. There is also the possibility optionally with and without impulse mechanism to work.
- the pulse impact mechanism is suitably fastened with bolts and especially between the cheeks or sidewalls a pliers leg.
- a preferred embodiment of the invention proposes that Impuls impact on a hammer, which is moving on one of the pliers legs is guided.
- the hammer is with Game arranged so that it moved in parallel or even can easily be tilted and the shape of the jammed Object adapts.
- the working piston acts on the hammer of the pulse striking tool.
- the movable arrangement of the Schlageries also has the consequence that the head piece in yielding of the object can jump ahead a bit, after which another closing movement of the pliers follows. This prevents that the impulse hammer, which has a high impact energy supplies, on a rigid abutment of the pliers leg strikes, which would easily damage the pliers leg.
- the hammer is preferably linearly movable and although perpendicular to the holding plane. The strokes of the impulse strike are so directed obliquely or perpendicularly against the other pliers legs.
- the Impact impactor is attached to a base part on which the Pliers legs are pivotally mounted.
- the base is located is in the middle of the holding area of the demolition tongs and it is fixed while both pliers legs move. From This fixed base part acts from the impulse striking mechanism on the jammed object.
- the impulse mechanism acts on the bisector of the clamping surfaces the pliers formed opening angle. Located on the clamping surfaces Teeth that prevent the jammed object pushed out under the action of the impulse hammer become.
- the Closing force should be at least about 100 t and preferably in the order of 400 t - 500 t. If the shocks are superimposed on this high closing force, creates a high smashing ability.
- a carrier device (Excavator) usually has a large one Hydraulic power. Since the carrier device while working the Demolition tong is resting and no hydraulic energy consumes enough energy for several Impulses that work different places to Available.
- the demolition gun 10 is on the boom 11 a mobile excavator 12 attached.
- the extension arm 11 has Hydraulic cylinder 13,14,15 on which the various arm sections move to guide the demolition forceps 10.
- the demolition tongs 10 has a base part 16 on which the cantilever arm 11 attacks and of which an immovable solid pliers legs 17 protrudes.
- an upper pliers limb 19 is attached, the pivoted by hydraulic cylinder 20 around the hinge 18 around becomes.
- the two pliers legs 17 and 19 have on each other facing clamping surfaces 21 and 22 projecting pointed teeth 23, which claw into the object to be clamped. Between the clamping surfaces 21 and 22 is the holding area 24th
- a fluid-operated pulse hammer 25 is fixed to the Pliers legs 17 mounted and directed to the holding area 24.
- the impulse striker has an elongated hammer housing 26, which with a controller 27 and a gas pressure accumulator 28 is provided.
- the pulse hammer 25 also has a piston 29, which protrudes from the housing 26 and in axial direction is hydraulically reciprocated.
- the piston 29 is provided at its end with a tool part 30 at it is an abrasion-resistant striking tip or a cutting edge is.
- the tool part 30 penetrates upon actuation of the pulse impact mechanism in the arrested object and smashed this.
- FIGS. 3 and 4 also apply on a demolition tongs with two pliers legs 17 and 19, which enclose the holding area 24.
- the pulse hammer 25 is attached on the movable pliers leg 19, the pulse hammer 25 is attached.
- the impulse mechanism is inside the pliers leg between two parallel plates 31,32 mounted (Fig. 4) and with two bolts 33, which inserted through corresponding holes in the plates 31,32 are secured.
- the bolts 33 form one Quick release for replaceable attachment of the impulse impact mechanism 25. Need to remove the impulse hammer only the bolts 33 to be pulled and the impulse hammer can then be pulled out between the plates 31,32.
- a striking piece 35 is also movable attached so that it moves perpendicular to the clamping surface 22 can be and take different tilting positions can.
- the hammer 35 is also with two bolts 36, the each passing through a slot 37, between the plates 31,32 mounted.
- the teeth 23 are located at the front of the striker 35, which points towards the holding area 24 projects beyond the leading edge of the plates 31, 32 even if it is in the slots 37 in the retreat position located. This is how the demolition tongs work even if the pulse hammer 25 is not in operation or expanded.
- the piston 29 of the pulse impact mechanism 25th beats on the back of the hammer 35, leaving the Beat piece beaten in the direction of the holding area 24 becomes. It may be because of the slots 37 relative to the Bolt 36 back and forth.
- the impulse mechanism 25 is also here with a mounted on the housing 26 controller 27 and a Gas accumulator 28 provided.
- Fig. 5 In the embodiment of Fig. 5 are two movable Pliers legs 17,19 are provided, each with a joint 40,41 are attached to a fixed base part 16. To the Base part 16 are also corresponding hydraulic cylinders 42,43 supported, which move the pliers legs 17,19.
- the hydraulic pulse hammer mechanism 25 is attached to the base part 16 attached, in such a way that its longitudinal axis in the closing plane the pliers legs 17,19 runs.
- the piston 29 strikes on the held between the forceps legs object. He has a replaceable striking tip 44.
- the impulse mechanism can also be used with an automatic Be provided switching device that the pulse striking tool depending on the pressure of the hydraulic actuator, i.e. the cylinder 20, turns on. This However, switching should only be done when the pliers legs not in the closed position, so one Object is trapped between them. To achieve this, can be a closing position of the pliers legs recognizing Sensor be provided, which is the switching on of the actuator only allows if the pliers legs not in the closed position.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Crushing And Grinding (AREA)
- Shovels (AREA)
- Percussive Tools And Related Accessories (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
Die Erfindung betrifft eine hydraulische Abbruchzange mit zwei Zangenschenkeln zum Einklemmen eines Gegenstandes in einem Haltebereich.The invention relates to a hydraulic demolition tongs with two Pliers legs for clamping an object in a holding area.
Bekannt sind hydraulische Abbruchzangen zum Abreißen von Gebäuden, Betonwänden, Mauerwerk und ähnlichem. Diese Abbruchzangen werden an dem Auslegerarm eines Baggers befestigt und betätigt, um Gegenstände zu zerkleinern und/oder zu ergreifen und an einen gewünschten Ort zu verbringen. Abbruchzangen haben gegenüber den früher üblichen Abrissbirnen den Vorteil, dass sie weniger Lärm und Schmutz erzeugen und einen kontrollierteren Abriss ermöglichen. Hydraulische Abbruchzangen sind imstande große Kräfte von vielen Tonnen zu erzeugen. Diese Kräfte reichen jedoch häufig nicht aus, um insbesondere Betonplatten zu zerkleinern, speziell wenn darin Bewehrungseisen enthalten sind. Hydraulic demolition tongs are known for demolishing buildings, Concrete walls, masonry and the like. These demolition tongs be attached to the boom of an excavator and operated to crush and / or grasp objects and to spend a desired place. Have demolition tongs compared to the formerly common wrecking ball the advantage that they generate less noise and dirt and a more controlled one Allow demolition. Hydraulic demolition tongs are able to produce large forces of many tons. These However, forces are often insufficient, in particular concrete slabs to crush, especially if in it rebar are included.
Zur Vergrößerung der Wirksamkeit von Abbruchzangen ist es bekannt, an einem Zangenschenkel eine Vibrationsvorrichtung vorzusehen, die auch Zähne aufweisen kann. Durch Vibration in Längsrichtung oder in Querrichtung der Zangenschenkel wird der von der Zange ergriffene Gegenstand bearbeitet. Eine Abbruchzange mit hydraulischen Vibrationskolben ist in EP 0 486 871 B1 beschrieben. Hierbei werden die Vibrationskolben von einem Drehschieber-Impulsgenerator über eine Hydraulikleitung betrieben. Die Vibrationsbewegungen werden erst ausgelöst, sobald die zwischen den Zangenschenkeln wirksame Schließkraft auf einen vorgegebenen einstellbaren Mindestwert angestiegen ist.To increase the effectiveness of demolition tongs it is known to provide a vibratory device on a forceps leg, which can also have teeth. By vibration in Lengthwise or in the transverse direction of the pliers legs is the processed by the forceps handled object. A demolition tongs with hydraulic vibration piston is described in EP 0 486 871 B1 described. Here are the vibrating piston of a Rotary vane pulse generator operated via a hydraulic line. The vibration movements are only triggered as soon as the effective closing force between the pliers legs has increased a predetermined adjustable minimum value.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine hydraulische Abbruchzange zu schaffen, die imstande ist, einen von ihr gehaltenen Gegenstand wirksam zu zertrümmern, so dass das weitgehend übliche Reißen und Zerren an zusammenhängenden Gegenständen vermieden wird und die Gegenstände besser und effektiver zerkleinert werden können.The present invention is based on the object, a to provide hydraulic demolition tongs that is capable of one to effectively smash the object held by it, so that the most common tearing and tugging at contiguous Objects is avoided and the items are better and more effective can be crushed.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den im Anspruch 1 angegebenen Merkmalen. Hiernach ist ein fluidbetätigtes Impulsschlagwerk vorgesehen, um Schläge auf einen im Haltebereich der Abbruchzange eingespannten Gegenstand auszuüben, wobei das Impulsschlagwerk eine insgesamt auswechselbare, mit einem eigenen Steuergerät versehene Einheit bildet.The solution of this object is achieved according to the invention in the Claim 1 specified characteristics. After that is a fluidbetätigter Impulse mechanism provided to strike on an im Holding area of the demolition tongs exercise clamped object, where the impulse mechanism is a total interchangeable, forms a unit provided with its own control unit.
Im Gegensatz zu einer Vibrationseinrichtung, die in der Regel sinusförmig anschwellende und abschwellende Vibrationen erzeugt, wird erfindungsgemäß ein Impulsschlagwerkzeug eingesetzt, welches plötzlich und extrem kurzfristig auftretende starke Schlagimpulse liefert. Derartige Impulsschlagwerke sind von Felsbrechern und Gesteinsbohrvorrichtungen her bekannt. Sie haben einen hydraulisch bewegbaren Arbeitskolben und einen ebenfalls hydraulisch betriebenen Steuerkolben, welcher in einem Steuergerät angeordnet ist. Der Arbeitskolben führt einen relativ langsamen Rückhub aus und schnellt nach Überschreiten einer Steuerkante mit extrem hoher Geschwindigkeit nach vorne, um dort auf einen Amboss oder ein Widerlager zu schlagen. Derartige Impulsschlagwerke haben auch einen Gasdruckspeicher, in dem während des Rückhubes Energie gesammelt wird, die beim Arbeitshub schlagartig auf den Arbeitskolben zur Einwirkung gebracht wird. Mit einem derartigen Impulsschlagwerk können Schläge hoher Energie ausgeübt werden, wodurch Beton und Stahl zertrümmert werden können, so dass es gelingt, den zwischen den Zangenschenkeln gehaltenen Gegenstand wirksam zu zerkleinern bzw. von einer größeren Fläche abzutrennen.Unlike a vibration device, which usually produces sinusoidal swelling and decaying vibrations, According to the invention, an impulse striking tool is used, which is sudden and extremely short-term delivers strong impulses. Such impulses are known from rock crushers and rock drilling devices. you have a hydraulically movable working piston and a also hydraulically operated control piston, which in a control unit is arranged. The working piston leads one relatively slow return stroke and fast after passing a control edge with extremely high speed forward, to strike there on an anvil or an abutment. such Impulse actuators also have a gas pressure accumulator, in during the return stroke energy is collected during the working stroke abruptly brought to the working piston to act becomes. With such a pulse impact can High energy shocks are applied, creating concrete and steel can be smashed, so that succeeds between the Clench forceps held object effectively or separate from a larger area.
Das Impulsschlagwerk bildet eine auswechselbare, mit einem eigenen Steuergerät versehene Einheit. Es kann als ganzes montiert und leicht ausgewechselt werden. Damit ist es möglich, an einer Abbruchzange ein Impulswerkzeug der jeweils benötigten Größe und Schlagenergie zu montierten. Ferner besteht die Möglichkeit wahlweise mit und ohne Impulsschlagwerk zu arbeiten. Das Impulsschlagwerk wird zweckmäßigerweise mit Bolzen befestigt und insbesondere zwischen den Wangen oder Seitenwänden eines Zangenschenkels.The impulse mechanism forms a replaceable, with a own control unit provided unit. It can be mounted as a whole and easily replaced. With that it is possible to a demolition tool a pulse tool of each required Size and impact energy to mounted. There is also the possibility optionally with and without impulse mechanism to work. The pulse impact mechanism is suitably fastened with bolts and especially between the cheeks or sidewalls a pliers leg.
Gemäß einer bevorzugten Weiterbildung der Erfindung schlägt das Impulsschlagwerk auf ein Schlagstück, welches beweglich an einem der Zangenschenkel geführt ist. Das Schlagstück ist mit Spiel angeordnet, so dass es parallel verschoben oder auch leicht gekippt werden kann und sich der Form des eingeklemmten Gegenstandes anpasst. Auf das Schlagstück wirkt der Arbeitskolben des Impulsschlagwerkzeugs. Die bewegliche Anordnung des Schlagstücks hat auch zur Folge, dass das Schlagstück bei Nachgeben des Gegenstandes ein Stück weit vorschnellen kann, wonach eine weitere Schließbewegung der Zange folgt. Dadurch wird verhindert, dass das Impulsschlagwerk, das eine hohe Schlagenergie liefert, auf ein starres Widerlager des Zangenschenkels schlägt, wodurch der Zangenschenkel leicht beschädigt würde. Das Schlagstück ist vorzugsweise linear bewegbar und zwar senkrecht zu der Halteebene. Die Schläge des Impulsschlagwerks sind also schräg oder senkrecht gegen den anderen Zangenschenkel gerichtet.According to a preferred embodiment of the invention proposes that Impuls impact on a hammer, which is moving on one of the pliers legs is guided. The hammer is with Game arranged so that it moved in parallel or even can easily be tilted and the shape of the jammed Object adapts. The working piston acts on the hammer of the pulse striking tool. The movable arrangement of the Schlagstücks also has the consequence that the head piece in yielding of the object can jump ahead a bit, after which another closing movement of the pliers follows. This prevents that the impulse hammer, which has a high impact energy supplies, on a rigid abutment of the pliers leg strikes, which would easily damage the pliers leg. The hammer is preferably linearly movable and although perpendicular to the holding plane. The strokes of the impulse strike are so directed obliquely or perpendicularly against the other pliers legs.
Eine andere Ausführungsform der Erfindung sieht vor, dass das Impulsschlagwerk an einem Basisteil angebracht ist, an dem die Zangenschenkel schwenkbar gelagert sind. Das Basisteil befindet sich in der Mitte des Haltebereichs der Abbruchzange und es ist feststehend, während sich beide Zangenschenkel bewegen. Von diesem feststehenden Basisteil aus wirkt das Impulsschlagwerk auf den eingeklemmten Gegenstand ein. Das Impulsschlagwerk wirkt dabei auf der winkelhalbierenden des von den Klemmflächen der Zange gebildeten Öffnungswinkels. An den Klemmflächen befinden sich Zähne, die verhindern, dass der eingeklemmte Gegenstand unter der Wirkung des Impulsschlagwerks herausgedrückt werden.Another embodiment of the invention provides that the Impact impactor is attached to a base part on which the Pliers legs are pivotally mounted. The base is located is in the middle of the holding area of the demolition tongs and it is fixed while both pliers legs move. From This fixed base part acts from the impulse striking mechanism on the jammed object. The impulse mechanism acts on the bisector of the clamping surfaces the pliers formed opening angle. Located on the clamping surfaces Teeth that prevent the jammed object pushed out under the action of the impulse hammer become.
Besonders wirksam sind die Schläge des Impulsschlagwerkzeugs, wenn sie zusätzlich zu einer von den Zangenschenkeln erzeugten großen Schließkraft auf den Gegenstand einwirken. Die Schließkraft sollte mindestens etwa 100 t betragen und vorzugsweise in der Größenordnung von 400 t - 500 t liegen. Wenn die Schläge dieser hohen Schließkraft überlagert werden, entsteht eine hohe Zertrümmerungsfähigkeit.Particularly effective are the strokes of the pulse striking tool, if they are in addition to one of the pliers legs generated great closing force on the object. The Closing force should be at least about 100 t and preferably in the order of 400 t - 500 t. If the shocks are superimposed on this high closing force, creates a high smashing ability.
Weiterhin ist es zweckmäßig, an einem Zangenschenkel mehrere Impulsschlagwerke nebeneinander anzubringen, die entweder synchron oder asynchron betrieben werden. Ein Trägergerät (Bagger) verfügt normalerweise über eine große Hydraulikleistung. Da das Trägergerät während des Arbeitens der Abbruchzange stillsteht und keine hydraulische Energie verbraucht, steht genügend Energie für mehrere Impulsschlagwerke, die unterschiedliche Stellen bearbeiten, zur Verfügung.Furthermore, it is expedient to several on a pliers leg To place impulse impactors side by side, either be operated synchronously or asynchronously. A carrier device (Excavator) usually has a large one Hydraulic power. Since the carrier device while working the Demolition tong is resting and no hydraulic energy consumes enough energy for several Impulses that work different places to Available.
Im folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.In the following, with reference to the drawings, embodiments the invention explained in more detail.
Es zeigen:
- Fig. 1
- eine Seitenansicht eines mit der hydraulischen Abbruchzange versehenen Baggers,
- Fig. 2
- eine vergrößerte Darstellung der Abbruchzange nach Fig. 1,
- Fig. 3
- eine weitere Ausführungsform der Abbruchzange,
- Fig. 4
- eine Ansicht des oberen Zangenschenkels aus Richtung des Pfeils IV von Fig. 3, und
- Fig. 5
- ein weiteres Ausführungsbeispiel der Abbruchzange.
- Fig. 1
- a side view of an excavator provided with the hydraulic demolition tongs,
- Fig. 2
- an enlarged view of the demolition tongs of Fig. 1,
- Fig. 3
- another embodiment of the demolition tongs,
- Fig. 4
- a view of the upper pliers limb from the direction of the arrow IV of Fig. 3, and
- Fig. 5
- another embodiment of the demolition tongs.
Gemäß Fig. 1 ist die Abbruchzange 10 an dem Auslegerarm 11
eines fahrbaren Baggers 12 befestigt. Der Auslegerarm 11 weist
Hydraulikzylinder 13,14,15 auf, die die verschiedenen Armabschnitte
bewegen, um die Abbruchzange 10 zu führen.1, the
Die Abbruchzange 10 hat ein Basisteil 16, an dem der Auslegerarm
11 angreift und von dem ein unbeweglicher fester Zangenschenkel
17 absteht. An dem unteren Zangenschenkel 17 ist mit
einem Gelenk 18 ein oberer Zangenschenkel 19 angebracht, der
durch Hydraulikzylinder 20 um das Gelenk 18 herum verschwenkt
wird. Die beiden Zangenschenkel 17 und 19 haben an den einander
zugewandten Klemmflächen 21 und 22 vorspringende spitze Zähne
23, die sich in den zu klemmenden Gegenstand hineinkrallen.
Zwischen den Klemmflächen 21 und 22 befindet sich der Haltebereich
24.The demolition tongs 10 has a
Ein fluidbetätigtes Impulsschlagwerk 25 ist an dem festen
Zangenschenkel 17 montiert und auf den Haltebereich 24 gerichtet.
Das Impulsschlagwerk weist ein langgestrecktes Hammergehäuse
26 auf, das mit einer Steuerung 27 und einem Gasdruckspeicher
28 versehen ist. Das Impulsschlagwerk 25 weist ferner
einen Kolben 29 auf, der aus dem Gehäuse 26 herausragt und in
axiale Richtung hydraulisch hin- und herbewegt wird. Der Kolben
29 ist an seinem Ende mit einem Werkzeugteil 30 versehen, bei
dem es sich um eine abriebfeste Schlagspitze oder eine Schneide
handelt. Das Werkzeugteil 30 dringt bei Betätigung des Impulsschlagwerks
in den festgehaltenen Gegenstand ein und zertrümmert
diesen.A fluid-operated
Das Ausführungsbeispiel der Fign. 3 und 4 bezieht sich ebenfalls
auf eine Abbruchzange mit zwei Zangenschenkeln 17 und 19,
die den Haltebereich 24 umschließen. An dem bewegbaren Zangenschenkel
19 ist das Impulsschlagwerk 25 angebracht. Das Impulsschlagwerk
ist im Innern des Zangenschenkels zwischen zwei
parallelen Platten 31,32 montiert (Fig. 4) und mit zwei Bolzen
33, die durch entsprechende Löcher in den Platten 31,32 hindurchgesteckt
sind, gesichert. Die Bolzen 33 bilden einen
Schnellverschluss zur auswechselbaren Befestigung des Impulsschlagwerks
25. Zum Entfernen des Impulsschlagwerks brauchen
lediglich die Bolzen 33 gezogen zu werden und das Impulsschlagwerk
kann dann zwischen den Platten 31,32 herausgezogen werden.The embodiment of FIGS. 3 and 4 also apply
on a demolition tongs with two
Zwischen den Platten 31,32 ist ferner ein Schlagstück 35 beweglich
angebracht, so dass es senkrecht zur Klemmfläche 22 bewegt
werden kann und auch unterschiedliche Kipppositionen einnehmen
kann. Das Schlagstück 35 ist ebenfalls mit zwei Bolzen 36, die
jeweils durch ein Langloch 37 hindurchgehen, zwischen den Platten
31,32 montiert. Die Zähne 23 befinden sich an der Vorderseite
des Schlagstücks 35, das in Richtung auf den Haltebereich
24 über die Vorderkante der Platten 31,32 hinaus vorsteht,
selbst wenn es sich in den Langlöchern 37 in der Rückzugsposition
befindet. Auf diese Weise arbeitet die Abbruchzange
auch dann, wenn das Impulsschlagwerk 25 nicht in Betrieb ist
oder ausgebaut ist. Der Kolben 29 des Impulsschlagwerks 25
schlägt auf die Rückseite des Schlagstücks 35, so dass das
Schlagstück in Richtung auf den Haltebereich 24 geschlagen
wird. Dabei kann es sich wegen der Langlöcher 37 relativ zu dem
Bolzen 36 hin- und herbewegen. Das Impulsschlagwerk 25 ist auch
hier mit einer am Gehäuse 26 montierten Steuerung 27 und einem
Gasdruckspeicher 28 versehen.Between the
Bei dem Ausführungsbeispiel von Fig. 5 sind zwei bewegbare
Zangenschenkel 17,19 vorgesehen, die jeweils mit einem Gelenk
40,41 an einem festen Basisteil 16 angebracht sind. An dem
Basisteil 16 sind auch entsprechende Hydraulikzylinder 42,43
abgestützt, die die Zangenschenkel 17,19 bewegen.In the embodiment of Fig. 5 are two
Das hydraulische Impulsschlagwerk 25 ist an dem Basisteil 16
befestigt, und zwar so, dass seine Längsachse in der Schließebene
der Zangenschenkel 17,19 verläuft. Der Kolben 29 schlägt
auf den zwischen den Zangenschenkeln festgehaltenen Gegenstand.
Er weist eine auswechselbare Schlagspitze 44 auf. The hydraulic
Bei den beschriebenen Ausführungsbeispielen weist jeweils das
Impulsschlagwerk eine manuell betätigbare Einschaltvorrichtung
auf, mit der es wahlweise eingeschaltet und abgeschaltet werden
kann. Das Impulsschlagwerk kann auch mit einer automatischen
Einschaltvorrichtung versehen sein, die das Impulsschlagwerkzeug
in Abhängigkeit von dem Druck der hydraulischen Betätigungsvorrichtung,
d.h. der Zylinder 20, einschaltet. Dieses
Einschalten sollte jedoch nur dann erfolgen, wenn die Zangenschenkel
sich nicht in der Schließstellung befinden, also einen
Gegenstand zwischen ihnen eingeklemmt ist. Um dies zu erreichen,
kann ein eine Schließstellung der Zangenschenkel erkennender
Sensor vorgesehen sein, der das Einschalten der Betätigungsvorrichtung
nur dann zulässt, wenn die Zangenschenkel
sich nicht in der Schließstellung befinden.In the described embodiments, each has the
Impulsschlagwerk a manually operable power switch
on, with which it can be optionally switched on and off
can. The impulse mechanism can also be used with an automatic
Be provided switching device that the pulse striking tool
depending on the pressure of the hydraulic actuator,
i.e. the
Claims (11)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00115805A EP1174568B1 (en) | 2000-07-22 | 2000-07-22 | Hydraulic crusher |
AT00115805T ATE215165T1 (en) | 2000-07-22 | 2000-07-22 | HYDRAULIC DEMOLITION PLIERS |
DE50000129T DE50000129D1 (en) | 2000-07-22 | 2000-07-22 | Hydraulic demolition grapple |
US09/910,042 US6568615B2 (en) | 2000-07-22 | 2001-07-23 | Hydraulic breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00115805A EP1174568B1 (en) | 2000-07-22 | 2000-07-22 | Hydraulic crusher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1174568A1 true EP1174568A1 (en) | 2002-01-23 |
EP1174568B1 EP1174568B1 (en) | 2002-03-27 |
Family
ID=8169327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00115805A Expired - Lifetime EP1174568B1 (en) | 2000-07-22 | 2000-07-22 | Hydraulic crusher |
Country Status (4)
Country | Link |
---|---|
US (1) | US6568615B2 (en) |
EP (1) | EP1174568B1 (en) |
AT (1) | ATE215165T1 (en) |
DE (1) | DE50000129D1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2085170A1 (en) * | 2008-01-31 | 2009-08-05 | Corimag S.r.l. | Crushing apparatus for demolition or similar works |
WO2010133862A3 (en) * | 2009-05-19 | 2011-05-26 | Michael John Williams | Pile cropping apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD752114S1 (en) * | 2012-06-04 | 2016-03-22 | Caterpillar Work Tools B.V. | Multi-processor and modular wear protection system |
JP6496131B2 (en) * | 2014-11-27 | 2019-04-03 | 鈴健興業株式会社 | Processing unit and processing method |
CN105275031B (en) * | 2015-09-18 | 2017-10-13 | 重庆妙坤生物科技有限责任公司 | A kind of Opencast Bauxite Mine land reserve zone is reclaimed excavating gear |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0486871B1 (en) | 1990-11-17 | 1996-01-31 | Krupp Maschinentechnik Gesellschaft Mit Beschränkter Haftung | Method for assisting the crushing capacity of demolition apparatus and apparatus used in such method |
JPH08254021A (en) * | 1995-03-16 | 1996-10-01 | Kazuyuki Sakurai | Hydraulic crushing machine with grinding mechanism |
WO1996035034A1 (en) * | 1995-05-01 | 1996-11-07 | Hawkins Peter A T | Performing work with a tool |
JPH10259670A (en) * | 1997-03-18 | 1998-09-29 | Shin Caterpillar Mitsubishi Ltd | Crushing machine with hammering means |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3980341A (en) * | 1974-03-14 | 1976-09-14 | National Research Development Corporation | Breaking up of concrete surface layers or the like |
FR2666678B1 (en) | 1990-07-24 | 1993-07-30 | Framatome Sa | GRILLE WITH MIXING FINS FOR NUCLEAR FUEL ASSEMBLY. |
US5474242A (en) * | 1994-10-11 | 1995-12-12 | The Stanley Works | Demolition tools with jaws having replaceable working surfaces |
JPH1064760A (en) | 1996-08-26 | 1998-03-06 | Matsushita Electric Ind Co Ltd | Wound electrochemical element |
-
2000
- 2000-07-22 EP EP00115805A patent/EP1174568B1/en not_active Expired - Lifetime
- 2000-07-22 AT AT00115805T patent/ATE215165T1/en not_active IP Right Cessation
- 2000-07-22 DE DE50000129T patent/DE50000129D1/en not_active Expired - Fee Related
-
2001
- 2001-07-23 US US09/910,042 patent/US6568615B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0486871B1 (en) | 1990-11-17 | 1996-01-31 | Krupp Maschinentechnik Gesellschaft Mit Beschränkter Haftung | Method for assisting the crushing capacity of demolition apparatus and apparatus used in such method |
JPH08254021A (en) * | 1995-03-16 | 1996-10-01 | Kazuyuki Sakurai | Hydraulic crushing machine with grinding mechanism |
WO1996035034A1 (en) * | 1995-05-01 | 1996-11-07 | Hawkins Peter A T | Performing work with a tool |
JPH10259670A (en) * | 1997-03-18 | 1998-09-29 | Shin Caterpillar Mitsubishi Ltd | Crushing machine with hammering means |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 02 28 February 1997 (1997-02-28) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2085170A1 (en) * | 2008-01-31 | 2009-08-05 | Corimag S.r.l. | Crushing apparatus for demolition or similar works |
WO2010133862A3 (en) * | 2009-05-19 | 2011-05-26 | Michael John Williams | Pile cropping apparatus |
Also Published As
Publication number | Publication date |
---|---|
US20020008169A1 (en) | 2002-01-24 |
EP1174568B1 (en) | 2002-03-27 |
DE50000129D1 (en) | 2002-05-02 |
ATE215165T1 (en) | 2002-04-15 |
US6568615B2 (en) | 2003-05-27 |
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