EP0320445A2 - Implements for pulling down walls, concrete floors and the like - Google Patents

Implements for pulling down walls, concrete floors and the like Download PDF

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Publication number
EP0320445A2
EP0320445A2 EP88810803A EP88810803A EP0320445A2 EP 0320445 A2 EP0320445 A2 EP 0320445A2 EP 88810803 A EP88810803 A EP 88810803A EP 88810803 A EP88810803 A EP 88810803A EP 0320445 A2 EP0320445 A2 EP 0320445A2
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EP
European Patent Office
Prior art keywords
tip
device body
hydraulic cylinder
mining
mining device
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
EP88810803A
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German (de)
French (fr)
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EP0320445B1 (en
EP0320445A3 (en
Inventor
Hans Bieri
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Hydrostress AG
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Hydrostress AG
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Publication date
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Publication of EP0320445A3 publication Critical patent/EP0320445A3/en
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    • 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
    • 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
    • E04G2023/086—Wrecking of buildings of tanks, reservoirs or the like

Definitions

  • the invention relates to a mining device for walls, concrete floors and the like.
  • Compressed air chisels and the like are usually used to dismantle concrete walls. used.
  • the disadvantage is the strong noise, the unpleasant vibrations and the limited speed of degradation.
  • the object is to be achieved, a mining device for walls and the like. to create, which is based on the principle of penetration of hydraulically pressed tips and which is so light that it is portable.
  • a portable, essentially C-shaped light metal device body at the leg ends of which there are two equiaxed tip bodies which delimit the jaw opening, at least one of which is movable against the other and interacts with a double-acting hydraulic cylinder, and the hydraulic cylinder Hose connections are connected to a hydraulic high pressure source.
  • the removal device according to FIG. 1 contains a clamp-like, essentially C-shaped device body 1, the middle part of which has the largest dimension.
  • This device body 1 is preferably machined in one piece from a light metal plate.
  • the lightweight construction aims to save as much weight as possible while maintaining a high bending moment and high torsional rigidity.
  • the device body 1 is delimited on the outside and inside by a spar 2, 3, between which there is a central plate part 4.
  • a plurality of reinforcing ribs 5 protrude from the plate part 4 on both sides, each ending in the inner and outer spar 2, 3.
  • the two pairs of ribs 5 extend parallel to the longitudinal central axis 7 or are slightly inclined to it.
  • the reinforcing ribs 6 are shorter than the reinforcing ribs 5 and extend transversely to the longitudinal central axis 7. Both the two spars 2, 3 and the reinforcing ribs 5, 6 are provided on the outside and inside with a reinforcing web 8, 9 as shown in FIGS. 4 and 5. This ensures a high level of flexural rigidity and Torsional rigidity of the entire device body 1 reached.
  • the device body is circumferentially closed at one leg end and has a bore 10 for receiving a hydraulic device.
  • the other leg has a similar design, with the difference that the wall is slotted and contains at least one screw in order to contract the bore when the tip body 17 is inserted.
  • the two legs 12, 13 of the substantially C-shaped device body 1 form a mouth opening 14 which is delimited by the two tips 15, 16 arranged on the same axis.
  • One tip body 17 sits rigidly but releasably in the bore of the leg 12, while the other tip body 18 is received by the bore 10 and the hydraulic cylinder 21 including the tip 16 is movable.
  • the tip body 17 contains one or more spacer rings 19, which are located between the inner leg surface 12 and a shoulder 20 of the tip body 17 and sit on a cylindrical shaft 31 which penetrates the bore of the device body.
  • the other tip body 18 cooperates with a hydraulic cylinder 21, which can move the tip 16 in the direction of the other tip 15.
  • the hydraulic cylinder 21, with which the tip body 18 can be moved back and forth, is thus double-acting.
  • the high-pressure liquid is controlled by a control slide 3 rigidly mounted on the device body and having an actuating handle 24.
  • the hydraulic cylinder contains a cylindrical sleeve 25 which is received by the bore 10 of the device body 1.
  • the rear end of this sleeve 25 is surrounded by a bush 26 and sealed by a screwed cover 30.
  • a guide bushing 27 is inserted into the bore 10.
  • a piston rod 34 is connected to the tip 16, the end of which forms a piston 36.
  • Piston 36, piston rod 34 and tip 34 can either consist of one or more interconnected parts.
  • a first pressure chamber 28 is delimited by the piston 36, the sleeve 25 and the cover 30.
  • a second, annular pressure chamber 38 is formed between the piston 36, the piston rod 34 and the sleeve bore 25.
  • the supply of high pressure liquid to the first pressure chamber 28 takes place through a feed line 40 in the cover 30. If the supply of pressure liquid into the first pressure chamber 28 is opened by the control slide 23, this causes the piston 36 to be moved in the direction of arrow B. At the same time, liquid is displaced from the second pressure chamber 38, which flows off without pressure via a line 42.
  • the control slide 23 is switched accordingly, as a result of which the line 42 and the second pressure chamber 38 now contain pressure fluid and the liquid present in the first pressure chamber 28 is displaced via the line 40.
  • An overpressure valve 44 prevents an inadmissible overpressure from occurring in the end position of the piston 36 shown.
  • the second pressure chamber 38 is in flow connection with a ball valve via a radial bore 46.
  • the ball 48 is so strongly loaded by a spring 50 that any excess pressure in the second pressure chamber 38 is released via the first pressure chamber 28.
  • the spring force at which this safety valve opens can be adjusted by means of a screw 52.
  • the connection between the control slide 23 and the connection nipples 58 is made by hoses or pipes 60.
  • the connection sleeves for the hoses for supplying the high pressure liquid to the control slide 23 are located on the side of the device facing away from FIG. 1.
  • the high-pressure source preferably consists of a mobile, motor-driven high-pressure pump, which ver with pressure-resistant hoses and detachable hose couplings with the remote device body 1 are bound. Since the pressure source is thus separated from the device, it can be designed so easily that it can be carried by a man.
  • the holding frame 62 contains rounded profile bars 63, which are preferably made of light metal. These are attached on both sides of the device body 1 and are held in place by screwed-on connecting rods 66, two of which penetrate holes 32 in the device body 1. Since the scaffolding 62 projects beyond the outside of the device body, the device can easily be brought into the desired working position by hand and held in this position.
  • the device is placed with its mouth 14 by hand from above onto the wall. Then, by operating the control slide 23 by means of the operating handle 24, high-pressure liquid, preferably pressure oil, e.g. admitted into the first pressure chamber 28 at a pressure of approximately 800 bar. As a result, the piston 36 and with it the tip 16 move in the direction of the arrow B. As a result, the two tips 15 and 16 penetrate the wall with great force until the latter splits. By moving the control slide 23, the tip 16 is then withdrawn through the second pressure chamber of the hydraulic device 22, whereupon the device can be pushed to a next location, after which the process can be repeated.
  • high-pressure liquid preferably pressure oil, e.g. admitted into the first pressure chamber 28 at a pressure of approximately 800 bar.
  • this mining device has a mouth opening measured between the tips 15 of less than 40 cm, preferably about 30 cm, the weight of the whole device is less than 50 kg, preferably about 45 kg, and that which can be produced between the tips 15, 16 Power is around 30 tons at a hydraulic fluid pressure of 780 bar.
  • both tips with a hydraulic cylinder, which are connected to the same high-pressure source and operated by the same control elements, so that they move synchronously towards or away from each other.
  • the total stroke length of the tips can be increased.
  • the device is portable, it can also be used on hoists, excavator extension arms or the like. fasten.

Abstract

For pulling down walls, use is made of a C-shaped pulling-down implement having two tips (15, 16) lying coaxially opposite one another. One tip body (18) contains a hydraulically actuable piston (36), by means of which the tips are pressed into the masonry structure until it cracks. The implement body (1) is of lightweight design and can be carried by one man. High-pressure fluid is supplied through hoses from a remotely arranged high-pressure source. …<??>As a result, it is possible to create a portable pulling-down implement which can be operated without lifting gears. …<IMAGE>…

Description

Die Erfindung bezieht sich auf ein Abbaugerät für Mauern, Betonböden u.dgl.The invention relates to a mining device for walls, concrete floors and the like.

Zum Abbau von Beton-Mauern werden üblicherweise Pressluft­meissel u.dgl. verwendet. Nachteilig ist dabei die starke Geräuschentwicklung, die unangenehmen Vibrationen und die beschränkte Abbaugeschwindigkeit.Compressed air chisels and the like are usually used to dismantle concrete walls. used. The disadvantage is the strong noise, the unpleasant vibrations and the limited speed of degradation.

Mit der Erfindung soll die Aufgabe gelöst werden, ein Abbauge­rät für Mauern u.dgl. zu schaffen, das auf dem Prinzip des Eindringens von hydraulisch gegeneinander gepressten Spitzen besteht und das so leicht ausgebildet ist, dass es tragbar ist.With the invention, the object is to be achieved, a mining device for walls and the like. to create, which is based on the principle of penetration of hydraulically pressed tips and which is so light that it is portable.

Diese Aufgabe wird gelöst durch einen tragbaren im wesentlichen C-förmigen Leichtmetall-Gerätekörpder, an dessen Schenkelenden sich zwei die Maulöffnung begrenzende, gleichachsige Spitzen­körper befinden, von denen mindestens der eine gegen den anderen bewegbar ist und mit einem doppelwirkenden Hydraulikzylinder zusammenwirkt, und der Hydraulikzylinder über Schlauchverbin­dungen an eine hydraulische Hochdruckquelle angeschlossen ist.This object is achieved by a portable, essentially C-shaped light metal device body, at the leg ends of which there are two equiaxed tip bodies which delimit the jaw opening, at least one of which is movable against the other and interacts with a double-acting hydraulic cylinder, and the hydraulic cylinder Hose connections are connected to a hydraulic high pressure source.

Durch die Leichtbauweise des Gerätekörpers und das räumliche Trennen des hydraulischen Hochdruckerzeugers vom Gerät gelingt es, das Gewicht eines solchen Abbaugerätes so gering zu halten, dass es von zwei Mann tragbar ist und an der Abbaustelle ohne Hilfsmittel wie Krane, Hebezeuge od.dgl. mit ihm gearbeitet werden kann.Due to the lightweight design of the device body and the spatial separation of the hydraulic high pressure generator from the device, it is possible to keep the weight of such a mining device so low that it can be carried by two people and at the dismantling site without tools such as cranes, hoists or the like. worked with him can be.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungs­gegenstandes dargestellt. Es zeigen:

  • Fig. 1 Eine Seitenansicht des Gerätes
  • Fig. 2 Einen Teilschnitt durch den am Gerät befestigten Hydrau­likzylinder samt Spitzenkörper
  • Fig. 3 Eine Ansicht des Gerätes mit Haltegerüst
  • Fig. 4 Einen Schnitt nach der Linie IV-IV in Fig. 1
  • Fig. 5 Einen Schnitt nach der Linie V-V in Fig. 1
  • Fig. 6 Eine Ansicht des den Hydraulikzylinder aufnehmenden Schenkels des Gerätekörpers in Richtung des Pfeiles A in Fig. 2
In the drawing, an embodiment of the subject of the invention is shown. Show it:
  • Fig. 1 is a side view of the device
  • Fig. 2 A partial section through the hydraulic cylinder attached to the device including the tip body
  • Fig. 3 A view of the device with a scaffold
  • 4 shows a section along the line IV-IV in FIG. 1st
  • 5 shows a section along the line VV in Fig. 1st
  • 6 is a view of the leg of the device body receiving the hydraulic cylinder in the direction of arrow A in FIG. 2

Das Abbaugerät gemäss Figur 1 enthält einen zwingenartigen, im wesentlichen C-förmigen Gerätekörper 1, dessen Mittelteil die grösste Abmessung aufweist. Dieser Gerätekörper 1 wird vorzugsweise einstückig aus einer Leichtmetallplatte herausge­arbeitet. Durch die Leichtbauweise wird eine möglichst grosse Gewichteinsparung bei gleichzeitig hohem Biege-Widerstandsmoment und hoher Verwindungssteifigkeit angestrebt. Zu diesem Zweck ist der Gerätekörper 1 aussen und innen je durch einen Holm 2,3 begrenzt, zwischen denen sich ein mittiger Plattenteil 4 befindet. Vom Plattenteil 4 ragen beidseitig mehrere Verstär­kungsrippen 5 ab, die jeweils im inneren und äusseren Holm 2,3 endigen. Die beiden Rippenpaare 5 erstrecken sich zur Längsmittelachse 7 parallel oder sind zu dieser leicht geneigt. Die Verstärkungsrippen 6 sind kürzer als die Verstärkungsrippen 5 und verlaufen quer zur Längsmittelachse 7. Sowohl die beiden Holme 2,3 als auch die Verstärkungsrippen 5,6 sind gemäss Fig. 4 und 5 aussen und innen je mit einem Verstärkungssteg 8,9 versehen. Dadurch wird eine hohe Biegesteifigkeit und Verwindungssteifigkeit des ganzen Gerätekörpers 1 erreicht. Wie aus Figur 6 hervorgeht, ist der Gerätekörper am einen Schenkelende umfangsgeschlossen und weist eine Bohrung 10 zur Aufnahme eines Hydraulikgerätes auf. Der andere Schenkel ist ähnlich ausgebildet mit dem Unterschied, dass die Wandung geschlitzt ist und mindestens eine Schraube enthält um die Bohrung bei eingesetztem Spitzenkörper 17 zusammenzuziehen.The removal device according to FIG. 1 contains a clamp-like, essentially C-shaped device body 1, the middle part of which has the largest dimension. This device body 1 is preferably machined in one piece from a light metal plate. The lightweight construction aims to save as much weight as possible while maintaining a high bending moment and high torsional rigidity. For this purpose, the device body 1 is delimited on the outside and inside by a spar 2, 3, between which there is a central plate part 4. A plurality of reinforcing ribs 5 protrude from the plate part 4 on both sides, each ending in the inner and outer spar 2, 3. The two pairs of ribs 5 extend parallel to the longitudinal central axis 7 or are slightly inclined to it. The reinforcing ribs 6 are shorter than the reinforcing ribs 5 and extend transversely to the longitudinal central axis 7. Both the two spars 2, 3 and the reinforcing ribs 5, 6 are provided on the outside and inside with a reinforcing web 8, 9 as shown in FIGS. 4 and 5. This ensures a high level of flexural rigidity and Torsional rigidity of the entire device body 1 reached. As can be seen from FIG. 6, the device body is circumferentially closed at one leg end and has a bore 10 for receiving a hydraulic device. The other leg has a similar design, with the difference that the wall is slotted and contains at least one screw in order to contract the bore when the tip body 17 is inserted.

Die beiden Schenkel 12,13 des im wesentlichen C-förmigen Geräte­körpers 1 bilden eine Maulöffnung 14, die durch die beiden gleichachsig angeordneten Spitzen 15,16 begrenzt ist. Der eine Spitzenkörper 17 sitzt starr aber lösbar in der Bohrung des Schenkels 12, während der andere Spitzenkörper 18 von der Bohrung 10 aufgenommen wird und dessen Hydraulikzylinder 21 samt Spitze 16 beweglich ist. Zur Veränderung der Maulöff­nung 14 enthält der Spitzenkörper 17 einen oder mehrere Distanz­ringe 19, welche sich zwischen der innern Schenkelfläche 12 und einer Schulter 20 des Spitzenkörpers 17 befinden und auf einem zylindrischen Schaft 31 sitzen, der dieBohrung des Geräte­körpers durchdringt.The two legs 12, 13 of the substantially C-shaped device body 1 form a mouth opening 14 which is delimited by the two tips 15, 16 arranged on the same axis. One tip body 17 sits rigidly but releasably in the bore of the leg 12, while the other tip body 18 is received by the bore 10 and the hydraulic cylinder 21 including the tip 16 is movable. To change the mouth opening 14, the tip body 17 contains one or more spacer rings 19, which are located between the inner leg surface 12 and a shoulder 20 of the tip body 17 and sit on a cylindrical shaft 31 which penetrates the bore of the device body.

Der andere Spitzenkörper 18 wirkt mit einem Hydraulikzylinder 21 zusammen, welcher die Spitze 16 in Richtung der anderen Spitze 15 verschieben kann.The other tip body 18 cooperates with a hydraulic cylinder 21, which can move the tip 16 in the direction of the other tip 15.

Der Hydraulikzylinder 21, mit welchem der Spitzenkörper 18 vor- und zurückbewegt werden kann, ist somit doppelwirkend ausgebildet. Die Steuerung der Hochdruckflüssigkeit erfolgt durch einen am Gerätekörper starr montierten Steuerschieber 3 mit Betätigungsgriff 24.The hydraulic cylinder 21, with which the tip body 18 can be moved back and forth, is thus double-acting. The high-pressure liquid is controlled by a control slide 3 rigidly mounted on the device body and having an actuating handle 24.

Wie aus Figur 2 hervorgeht, enthält der Hydraulikzylinder eine zylindrische Hülse 25, die von der Bohrung 10 des Geräte­körpers 1 aufgenommen wird. Das hintere Ende dieser Hülse 25 wird von einer Buchse 26 umgeben und durch einen einge­schraubten Deckel 30 dicht abgeschlossen. Am spitzenseitigen Ende ist in die Bohrung 10 eine Führungsbuchse 27 eingesetzt.As can be seen from FIG. 2, the hydraulic cylinder contains a cylindrical sleeve 25 which is received by the bore 10 of the device body 1. The rear end of this sleeve 25 is surrounded by a bush 26 and sealed by a screwed cover 30. At the tip end, a guide bushing 27 is inserted into the bore 10.

Mit der Spitze 16 ist eine Kolbenstange 34 verbunden, dessen Ende ein Kolben 36 bildet. Kolben 36, Kolbenstange 34 und Spitze 34 können entweder aus einem oder mehreren miteinan­der verbundenen Teilen bestehen. Ein erster Druckraum 28 wird begrenzt durch den Kolben 36, der Hülse 25 und dem Deckel 30. Zwischen dem Kolben 36, der Kolbenstange 34 sowie der Hülsenbohrung 25 wird ein zweiter, ringförmiger Druckraum 38 gebildet. Die Zufuhr von Hochdruckflüssigkeit zum ersten Druckraum 28 erfolgt durch eine Zuleitung 40 im Deckel 30. Wenn durch den Steuerschieber 23 die Zufuhr von Druckflüssigkeit in den ersten Druckraum 28 geöffnet wird, bewirkt dies, dass der Kolben 36 in Richtung des Pfeiles B bewegt wird. Gleich­zeitig wird Flüssigkeit aus dem zweiten Druckraum 38 verdrängt, welche über eine Leitung 42 drucklos abfliesst. Für die Bewegung in der Gegenrichtung wird der Steuerschieber 23 entsprechend umgestellt, wodurch nun die Leitung 42 und der zweite Druckraum 38 Druckflüssigkeit enthält und die im ersten Druckraum 28 vorhandene Flüssigkeit über die Leitung 40 verdrängt wird. Ein Ueberdruckventil 44 verhindert, dass in der dargestellten Endlage des Kolbens 36 ein unzulässiger Ueberdruck entstehen kann. Zu diesem Zweck steht der zweite Druckraum 38 über eine radiale Bohrung 46 mit einem Kugelventil in Durchflussverbin­dung. Die Kugel 48 ist durch eine Feder 50 so stark belastet, dass ein allfälliger Ueberdruck im zweiten Druckraum 38 über den ersten Druckraum 28 abgelassen wird. Die Federkraft bei der sich dieses Sicherheitsventil öffnet, lässt sich durch eine Schraube 52 einstellen.A piston rod 34 is connected to the tip 16, the end of which forms a piston 36. Piston 36, piston rod 34 and tip 34 can either consist of one or more interconnected parts. A first pressure chamber 28 is delimited by the piston 36, the sleeve 25 and the cover 30. A second, annular pressure chamber 38 is formed between the piston 36, the piston rod 34 and the sleeve bore 25. The supply of high pressure liquid to the first pressure chamber 28 takes place through a feed line 40 in the cover 30. If the supply of pressure liquid into the first pressure chamber 28 is opened by the control slide 23, this causes the piston 36 to be moved in the direction of arrow B. At the same time, liquid is displaced from the second pressure chamber 38, which flows off without pressure via a line 42. For the movement in the opposite direction, the control slide 23 is switched accordingly, as a result of which the line 42 and the second pressure chamber 38 now contain pressure fluid and the liquid present in the first pressure chamber 28 is displaced via the line 40. An overpressure valve 44 prevents an inadmissible overpressure from occurring in the end position of the piston 36 shown. For this purpose, the second pressure chamber 38 is in flow connection with a ball valve via a radial bore 46. The ball 48 is so strongly loaded by a spring 50 that any excess pressure in the second pressure chamber 38 is released via the first pressure chamber 28. The spring force at which this safety valve opens can be adjusted by means of a screw 52.

Zur Abdichtung der Hochdruckflüssigkeit sind im Kolben, im Deckel und in der Hülse Dichtungen 54 und 56 vorhanden. Die Verbindung zwischen dem Steuerschieber 23 und den Anschluss­nippeln 58 erfolgt durch Schläuche oder Rohre 60. Die Anschluss­muffen für die Schläuche zur Zufuhr der Hochdruckflüssigkeit zum Steuerschieber 23 befinden sich auf der in Fig. 1 abge­wandten Seite des Gerätes. Die Hochdruckquelle besteht vorzugs­weise aus einer fahrbaren, motorisch angetriebenen Hochdruck-­Pumpe, die über druckfeste Schläuche und lösbare Schlauch­kupplungen mit dem entfernt angeordneten Gerätekörper 1 ver­ bunden sind. Da somit die Druckquelle vom Gerät getrennt ist, kann es so leicht ausgebildet werden, dass es von einem Mann tragbar ist.Seals 54 and 56 are provided in the piston, in the cover and in the sleeve to seal the high-pressure liquid. The connection between the control slide 23 and the connection nipples 58 is made by hoses or pipes 60. The connection sleeves for the hoses for supplying the high pressure liquid to the control slide 23 are located on the side of the device facing away from FIG. 1. The high-pressure source preferably consists of a mobile, motor-driven high-pressure pump, which ver with pressure-resistant hoses and detachable hose couplings with the remote device body 1 are bound. Since the pressure source is thus separated from the device, it can be designed so easily that it can be carried by a man.

Zum sicheren Halten des Gerätes an einer Abbruchstelle ist dieses von einem Haltegerüst 62 umgeben, wie dies aus Fig. 3 hervorgeht. Das Haltegerüst 62 enthält abgerundete Profilstäbe 63, die vorzugsweise aus Leichtmetall bestehen. Diese sind beidseitig des Gerätekörpers 1 angebracht und durch angeschraub­te Verbindungsstangen 66 festgehalten, von denen zwei Bohrungen 32 im Gerätekörper 1 durchdringen. Da das Haltegerüst 62 den Gerätekörper aussen überragt, lässt sich das Gerät von Hand leicht in die gewünschte Arbeitsposition bringen und in dieser festhalten.To hold the device securely at a demolition point, it is surrounded by a holding frame 62, as can be seen in FIG. 3. The holding frame 62 contains rounded profile bars 63, which are preferably made of light metal. These are attached on both sides of the device body 1 and are held in place by screwed-on connecting rods 66, two of which penetrate holes 32 in the device body 1. Since the scaffolding 62 projects beyond the outside of the device body, the device can easily be brought into the desired working position by hand and held in this position.

Um eine Betonmauer od.dgl. abzubrechen, wird das Gerät mit seiner Maulöffnung 14 von Hand von oben auf die Mauer aufge­setzt. Hernach wird durch Betätigung des Steuerschiebers 23 mittels des Betätigungsgriffes 24 Hochdruckflüssigkeit, vorzugs­weise Drucköl, Z.B. mit einem Druck von etwa 800 bar in den ersten Druckraum 28 eingelassen. Dadurch bewegt sich der Kolben 36 und mit diesem die Spitze 16 in Richtung des Pfeiles B. Als Folge davon dringen die beiden Spitzen 15 und 16 mit grosser Kraft in die Mauer ein bis sich diese spaltet. Durch Umstellen des Steuerschiebers 23 wird hernach die Spitze 16 durch den zweiten Druckraum des Hydraulikgerätes 22 zurückgezogen, worauf das Gerät an eine nächste Stelle nachgeschoben werden kann worauf sich der Vorgang wiederholen lässt.To a concrete wall or the like. cancel, the device is placed with its mouth 14 by hand from above onto the wall. Then, by operating the control slide 23 by means of the operating handle 24, high-pressure liquid, preferably pressure oil, e.g. admitted into the first pressure chamber 28 at a pressure of approximately 800 bar. As a result, the piston 36 and with it the tip 16 move in the direction of the arrow B. As a result, the two tips 15 and 16 penetrate the wall with great force until the latter splits. By moving the control slide 23, the tip 16 is then withdrawn through the second pressure chamber of the hydraulic device 22, whereupon the device can be pushed to a next location, after which the process can be repeated.

Bei einer praktisch realisierten Ausführungsform hat dieses Abbaugerät eine zwischen den Spitzen 15 gemessene Maulöffnung von weniger als 40 cm, vorzugsweise etwa 30 cm, das Gewicht des ganzen Gerätes beträgt weniger als 50 kg, vorzusgsweise etwa 45 kg und die zwischen den Spitzen 15,16 erzeugbare Kraft beträgt bei einem Druck der Hydraulikflüssigkeit von 780 bar etwa 30 Tonnen.In a practically implemented embodiment, this mining device has a mouth opening measured between the tips 15 of less than 40 cm, preferably about 30 cm, the weight of the whole device is less than 50 kg, preferably about 45 kg, and that which can be produced between the tips 15, 16 Power is around 30 tons at a hydraulic fluid pressure of 780 bar.

Es ist auch möglich, beide Spitzen mit einem Hydraulikzylinder auszurüsten, die an die gleiche Hochdruckquelle angeschlossen und von den gleichen Steuerorganen betätigt werden, sodass sie sich synchron aufeinander zu oder voneinander weg bewegen.It is also possible to equip both tips with a hydraulic cylinder, which are connected to the same high-pressure source and operated by the same control elements, so that they move synchronously towards or away from each other.

Bei sonst gleichen Verhältnissen lässt sich dadurch die Gesamt­Hublänge der Spitzen vergrössern.If the conditions are otherwise the same, the total stroke length of the tips can be increased.

Obschon das Gerät tragbar ist, lässt es sich wahlweise auch an Hebezeugen, Bagger-Auslegearmen od.dgl. befestigen.Although the device is portable, it can also be used on hoists, excavator extension arms or the like. fasten.

Claims (9)

1. Abbaugerät für Mauern, Betonböden u.dgl., gekennzeichnet durch einen tragbaren im wesentlichen C-förmigen Leichtbau-­Gerätekörper (1), an dessen Schenkelenden (12,13) sich zwei die Maulöffnung (14) begrenzende, gleichachsige Spitzenkör­per (17,18) befinden, von denen mindestens der eine gegen den anderen bewegbar ist und mit einem doppelwirkenden Hydrau­likzylinder (22) zusammenwirkt, und der Hydraulikzylinder (22) über Schlauchverbindungen an eine hydraulische Hochdruck­quelle angeschlossen ist.1. Dismantling device for walls, concrete floors and the like, characterized by a portable, essentially C-shaped, lightweight device body (1), at the leg ends (12, 13) of which there are two equiaxed tip bodies (17, 17) that delimit the mouth opening (14). 18) are located, of which at least one is movable against the other and interacts with a double-acting hydraulic cylinder (22), and the hydraulic cylinder (22) is connected to a hydraulic high-pressure source via hose connections. 2. Abbaugerät nach Anspruch 1, dadurch gekennzeichnet, dass nur der eine Spitzenkörper (18) hydraulisch verstellbar ist und der andere Spitzenkörper (17) in Axialrichtung verschiebbar gehalten und durch mindestens einen Zwischenring (19) in seiner Lage fixierbar ist, der zwischen der Anschlagfläche (12) des Gerätekörpers und einer Schulter (20) des Spitzenkörpers (17) einsetzbar ist.2. Mining device according to claim 1, characterized in that only the one tip body (18) is hydraulically adjustable and the other tip body (17) is held displaceably in the axial direction and can be fixed in position by at least one intermediate ring (19) which is between the stop surface (12) of the device body and a shoulder (20) of the tip body (17) can be used. 3. Abbaugerät nach Anspruch 1 oder 2, dadurch gekennzeich­net, dass ein Hydraulik-Steuerschieber (23,24) zur Betätigung des Hydraulikzylinders (22) am Gerätekörper (1) selbst befestigt ist.3. Mining device according to claim 1 or 2, characterized in that a hydraulic control slide (23, 24) for actuating the hydraulic cylinder (22) is attached to the device body (1) itself. 4. Abbaugerät nach einem der Ansprüche 1-3, dadurch gekenn­zeichnet, dass der Gerätekörper (1) aus Leichtmetall besteht, einstückig ausgebildet ist und hinterschnittene Längs- und Querrippen (5,6) aufweist.4. Mining device according to one of claims 1-3, characterized in that the device body (1) consists of light metal, is formed in one piece and has undercut longitudinal and transverse ribs (5, 6). 5. Abbaugerät nach Anspruch 4, dadurch gekennzeichnet, dass der Gerätekörper (1) zwingenartig ausgebildet ist, einen mit­tigen Plattenteil (4) enthält, der von einer äusseren Gurt (2) und einer inneren Gurt (3) umfasst ist und zwischen Platten­teil (4) und Gurten (2,3) beidseitig mehrere Versteifungsrip­pen (5,6) abragen.5. mining device according to claim 4, characterized in that the device body (1) is formed like a clamp, contains a central plate part (4) which is surrounded by an outer belt (2) and an inner belt (3) and between the plate part (4th ) and belts (2,3) protrude several stiffening ribs (5,6) on both sides. 6. Abbaugerät nach einem der Ansprüche 1-5, dadurch gekenn­zeichnet, dass beidseits des Gerätekörpers (1) ein diesen übergreifendes Haltegerüst (62) vorhanden ist.6. Mining device according to one of claims 1-5, characterized in that on both sides of the device body (1) there is a holding frame (62) overlapping these. 7. Abbaugerät nach Anspruch 6, dadurch gekennzeichnet, dass das Haltegerüst (62) aus Profilstäben besteht, welche durch den Gerätekörper (1) durchdringende Verbindungsmittel zusammen­gehalten sind.7. mining device according to claim 6, characterized in that the holding frame (62) consists of profiled bars which are held together by the device body (1) penetrating connecting means. 8. Abbaugerät nach einem der Ansprüche 1, 3-7, dadurch gekenn­zeichnet, dass beide Spitzenkörper (17, 18) mit einem Hydrau­likzylinder (22) versehen und gegeneinander bewegbar sind.8. Mining device according to one of claims 1, 3-7, characterized in that both tip bodies (17, 18) are provided with a hydraulic cylinder (22) and can be moved relative to one another. 9. Abbaugerät nach einem der Ansprüche 1-8, dadurch gekenn­zeichnet, dass die Maulöffnung weniger als 45 cm beträgt und von einem Mann tragbar ist.9. Mining device according to one of claims 1-8, characterized in that the mouth opening is less than 45 cm and can be worn by a man.
EP88810803A 1987-12-09 1988-11-23 Implements for pulling down walls, concrete floors and the like Expired - Lifetime EP0320445B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4795/87 1987-12-09
CH479587 1987-12-09

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EP0320445A2 true EP0320445A2 (en) 1989-06-14
EP0320445A3 EP0320445A3 (en) 1989-09-06
EP0320445B1 EP0320445B1 (en) 1992-02-19

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EP88810803A Expired - Lifetime EP0320445B1 (en) 1987-12-09 1988-11-23 Implements for pulling down walls, concrete floors and the like

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EP (1) EP0320445B1 (en)
DE (1) DE3868495D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4424740A1 (en) * 1994-07-13 1996-01-18 Schilling Ostermeyer Maschinen Concrete crushing pliers
CN106320738A (en) * 2016-08-17 2017-01-11 岑溪市东正动力科技开发有限公司 Safety type fast wall dismantling device for decoration
CN112221561A (en) * 2020-09-24 2021-01-15 南京茂辉环保技术开发有限公司 Blast furnace ironmaking slag treatment method

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Publication number Priority date Publication date Assignee Title
US5004168A (en) * 1989-11-13 1991-04-02 Brian Purser Crushing apparatus
DE59100622D1 (en) * 1990-04-10 1994-01-05 Hydrostress Ag Pfaeffikon Mobile, hydraulic drive unit.
US20080196706A1 (en) * 2007-02-20 2008-08-21 Triston Fowler Apparatus for cutting stone
US7743761B2 (en) * 2008-08-20 2010-06-29 Brill Investments, Llc Rock cutting and trimming device

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DE2359313A1 (en) * 1972-11-29 1974-06-20 Takenaka Komuten Co CONCRETE CRUSHER
EP0051837A1 (en) * 1980-11-12 1982-05-19 Diaber Holding AG Apparatus for the treatment of piles
DE3541786A1 (en) * 1984-11-26 1986-08-07 TECHNOTRADE Mérnöki-Gazdasági Kisszövetkezet, Budapest Head for a breaking apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4424740A1 (en) * 1994-07-13 1996-01-18 Schilling Ostermeyer Maschinen Concrete crushing pliers
US5822893A (en) * 1994-07-13 1998-10-20 Schilling-Ostermeyer Maschinenbau Gmbh Concrete crushing tongs
US5946830A (en) * 1994-07-13 1999-09-07 Schilling Ostermeyer Maschinenbau Gmbh Concrete crushing tongs
CN106320738A (en) * 2016-08-17 2017-01-11 岑溪市东正动力科技开发有限公司 Safety type fast wall dismantling device for decoration
CN112221561A (en) * 2020-09-24 2021-01-15 南京茂辉环保技术开发有限公司 Blast furnace ironmaking slag treatment method

Also Published As

Publication number Publication date
US4932597A (en) 1990-06-12
DE3868495D1 (en) 1992-03-26
EP0320445B1 (en) 1992-02-19
EP0320445A3 (en) 1989-09-06

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