EP0900884B1 - Hammering device especially for percussion probe driving - Google Patents

Hammering device especially for percussion probe driving Download PDF

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Publication number
EP0900884B1
EP0900884B1 EP97810619A EP97810619A EP0900884B1 EP 0900884 B1 EP0900884 B1 EP 0900884B1 EP 97810619 A EP97810619 A EP 97810619A EP 97810619 A EP97810619 A EP 97810619A EP 0900884 B1 EP0900884 B1 EP 0900884B1
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EP
European Patent Office
Prior art keywords
rod
ram
piston
hammering device
anvil
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.)
Expired - Lifetime
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EP97810619A
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German (de)
French (fr)
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EP0900884A1 (en
Inventor
Eugen Studer
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TERRASOND AG
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RAMMSONDIERUNG SIGG AG
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Priority to EP97810619A priority Critical patent/EP0900884B1/en
Priority to AT97810619T priority patent/ATE252667T1/en
Priority to DE59710892T priority patent/DE59710892D1/en
Publication of EP0900884A1 publication Critical patent/EP0900884A1/en
Application granted granted Critical
Publication of EP0900884B1 publication Critical patent/EP0900884B1/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02Placing by driving
    • E02D7/06Power-driven drivers
    • E02D7/10Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02Placing by driving

Definitions

  • Piling devices which comprise a frame which is equipped with guides for a ram, which with a rotating Chain can be pulled up and along the guides on one in the Earth rod to ram falls.
  • the chain is equipped with drivers, into which the ram automatically engages to pull up while it automatically unlatches in the raised position.
  • Such a thing Piling equipment is shown for example in EP-A-0 569 339.
  • Such rammers have the disadvantage that in addition to Ram a frame with the drive means and the corresponding guides must be carried, which has a considerable weight. There such ramming probes often have to be carried out in the field, which is rather impassable is a transportation of this facility to the Location associated with a lot of effort.
  • the poles used to ram into the ground have one certain length on. These can be extended with additional poles become. In the above example, it is therefore necessary for each The piling device is lifted off the last bar must be so that the rod can be extended by another rod can. Then the pile driver has to be put back on the newly inserted pole be put on. This involves a relatively large amount of work, it is practically not possible to use a ramming probe Have the device carried out by a single person.
  • the anvil is advantageously made of an annular body formed, which can be fastened to the rod by means of wedges, which enables the The anvil can be adjusted in height with little effort, using the attachment is optimal.
  • the top end region of the ram is advantageously included provide an end cover so that between the piston and end cover a room is formed in which the compressed air can be supplied, to raise the ram.
  • FIG. 1 is to be rammed into the ground 1
  • Rod 2 an anvil 3 put over.
  • This anvil 3 consists of one annular body 4, the wedges 5 on the rod 2 on a selectable Height is fixed.
  • the pile driver 6 is mounted on the anvil 3.
  • This comprises a piston rod 7, which is hollow-cylindrical is and through the longitudinal opening 8, the rod 2 is guided.
  • the piston rod 7 is equipped with a piston 9.
  • a valve device 16 is arranged in the end cover 13, while an inlet opening 17 for compressed air is provided in the ram 10, which opens into the space 18 between the piston 9 and the end cover 13. Furthermore, there is a ventilation opening in the lower end region 14 of the ram 10 19 attached. The operation of this valve device 16 the inlet opening 17 and the vent opening 19 will be precise later described.
  • Fig. 3 shows the pile driver 6, which corresponds to Fig. 1 on the Piston rod 7 is supported on the anvil 3.
  • the ram 10 is in the lower position, which is taken when, for example, a blow to the anvil 3 is done.
  • Drain openings 28 attached in the illustrated position of the ram 10 are closed by the annular disc 27, for which purpose this with a Sealing washer 29 is provided.
  • the annular disc 27 is through made of bolts 30 guide means guided such that they differ from End cover 13 can move away against the piston 9 to the To be able to release drain openings 28.
  • the ram 10 is started up until one in the Ram 10 attached vent 35 has passed over the piston 9, whereby the room 18 is connected to the environment. Once that position is reached, there is a drop in pressure in space 18, the compression springs 32 cause the annular disc 27 to move away from the end cover 13 and are pressed against the stops 31, the drain openings 28 in End cover 13 are opened, the ram 10 falls down and strikes anvil 3. This impact, which is caused by the anvil 3 is transferred to the rod 2, the rod 2 by a certain amount in rammed the floor.
  • FIG. 5 shows that at this embodiment in the end cover 13 six over the circumference distributed outlet openings 28 are provided. Furthermore are three guide bolts 30 attached to guide the annular disc 27. Of course, other arrangements could also be used. Of furthermore, in this embodiment, a ram 10 is used, which consists of a thick-walled hollow cylinder is formed. Here, too, there would be other forms possible, it would also be conceivable for additional weights to be attached to the ram could become.
  • An embodiment of such an inventive Piling equipment can, for example, have a total weight of around 35 kilograms exhibit.
  • the fall height of the ram is about 20 cm.
  • This Piling equipment is very easy to use, which is easily done one person can be carried out.
  • For commissioning can be in the Piling device and the anvil inserted a rod to be rammed into the ground the anvil is attached to the rod, the rod is inserted into the vertical position, the ramming process can begin.
  • the pile driver by the very simple lifting device can be lifted off the anvil.
  • To extend one rod by another becomes only the one that can be placed on the rod Part 20 is removed from the rod that has already been partially rammed into the ground and placed on the extension rod inserted in it. So it is not necessary, the piling device every time the pole is extended to be lifted off the shelf completely, which makes operation very easy becomes.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Press Drives And Press Lines (AREA)
  • Dram (AREA)

Abstract

The ram tool has a longitudinal opening (8) through the piston rod (7) for the ramrod (2) to pass through. An anvil (3) is mounted to the ramrod at an adjustable height level, to support the piston rod. The anvil has a ring body (4), mounted to the ramrod by wedges (5).

Description

Die vorliegende Erfindung bezieht sich auf ein Rammgerät, insbesondere zur Durchführung von Rammsondierungen, gemäss dem Oberbegriff des Patentanspruchs 1.The present invention relates to a pile driver, in particular to carry out ramming probes, according to the generic term of claim 1.

Rammsondierungen, bei denen an Stäben oder Rohren befestigte Sonden mittels Rammgeräten in die Erde gerammt werden, dienen der Untersuchung der Beschaffenheit des Bodens. Hierbei können Messungen vorgenommen oder Bodenproben entnommen werden.Ramming probes, where attached to bars or pipes The probes are rammed into the ground using piling equipment the nature of the soil. Measurements can be taken here or soil samples are taken.

Es sind Rammgeräte bekannt, die ein Rahmengestell umfassen, das mit Führungen für eine Ramme ausgestattet ist, welche mit einer umlaufenden Kette hochgezogen werden kann und entlang den Führungen auf eine in die Erde zu rammende Stange fällt. Hierzu ist die Kette mit Mitnehmern ausgestattet, in welche die Ramme zum Hochziehen automatisch einklinkt, während sie in der hochgezogenen Lage automatisch wieder ausklinkt. Ein derartiges Rammgerät ist beispielsweise in der EP-A-0 569 339 dargestellt.Piling devices are known which comprise a frame which is equipped with guides for a ram, which with a rotating Chain can be pulled up and along the guides on one in the Earth rod to ram falls. For this, the chain is equipped with drivers, into which the ram automatically engages to pull up while it automatically unlatches in the raised position. Such a thing Piling equipment is shown for example in EP-A-0 569 339.

Derartige Rammgeräte weisen den Nachteil auf, dass zusätzlich zur Ramme ein Gestell mit den Antriebsmitteln und den entsprechenden Führungen mitgeführt werden muss, welches ein beträchtliches Gewicht aufweist. Da derartige Rammsondierungen oftmals in Gelände vorgenommen werden müssen, das ziemlich unwegsam ist, ist ein Transport dieser Einrichtung an den Einsatzort mit einem grossen Aufwand verbunden.Such rammers have the disadvantage that in addition to Ram a frame with the drive means and the corresponding guides must be carried, which has a considerable weight. There such ramming probes often have to be carried out in the field, which is rather impassable is a transportation of this facility to the Location associated with a lot of effort.

Es sind auch Rammgeräte entwickelt worden, die mit Druckluft arbeiten. Im wesentlichen besteht ein derartiges Rammgerät aus einer Kolbenstange mit einem Kolben, über welchen die hohlzylinderförmig ausgebildete Ramme geführt ist. Die Ramme ist oben mit einer Abdeckung versehen, die mit einer Ventilvorrichtung ausgestattet ist. Zum Einrammen einer Stange wird dieses Rammgerät mit einer am unteren Ende der Kolbenstange angebrachten Vorrichtung auf die Stange aufgesetzt. Die Ramme wird durch Zuführen von Druckluft in den Raum zwischen Kolben und Abdeckung angehoben, die Ventileinrichtung wird geöffnet, die Ramme fällt auf einen Amboss, der ebenfalls am unteren Ende der Kolbenstange angebracht ist, die Stange wird eingerammt.Piling equipment that works with compressed air has also been developed. Such a pile driver essentially consists of a piston rod with a piston, over which the hollow cylindrical Ram is led. The ram is provided with a cover at the top is equipped with a valve device. This is used to ram in a pole Piling device with one attached to the lower end of the piston rod Device placed on the rod. The ram is fed by Compressed air raised in the space between the piston and cover, the valve device is opened, the ram falls on an anvil, which also is attached to the lower end of the piston rod, the rod is driven in.

Da dieses Rammgerät auf die Stange, die in den Boden einzurammen ist, aufgesetzt wird, und dessen Gewicht beträchtlich ist, ist es erforderlich, dass neben dem Rammgerät ein zusätzliches Hebegerät mitgeführt werden muss, das beispielsweise aus einem Dreibein mit einem Seilzug besteht. Somit weist diese Einrichtung den gleichen Nachteil wie das obengenannte Rammgerät auf.Because this piling rig on the pole that rammed into the ground is put on, and its weight is considerable, it is necessary that an additional lifting device is carried along with the piling equipment must, which consists for example of a tripod with a cable. Thus, this device has the same disadvantage as the above Piling device on.

Die verwendeten, in den Boden zu rammenden Stangen weisen eine bestimmte Länge auf. Diese können jeweils durch weitere Stangen verlängert werden. Beim vorgenannten Beispiel ist es somit erforderlich, dass bei jedem Verlängerungsvorgang das Rammgerät von der letzten Stange abgehoben werden muss, so dass die Stange durch eine weitere Stange verlängert werden kann. Danach muss das Rammgerät auf die neu eingesetzte Stange wieder aufgesetzt werden. Dies ist mit einem relativ grossen Arbeitsaufwand verbunden, es ist praktisch nicht möglich, eine Rammsondierung mit einem derartigen Gerät durch eine einzige Person vornehmen zu lassen.The poles used to ram into the ground have one certain length on. These can be extended with additional poles become. In the above example, it is therefore necessary for each The piling device is lifted off the last bar must be so that the rod can be extended by another rod can. Then the pile driver has to be put back on the newly inserted pole be put on. This involves a relatively large amount of work, it is practically not possible to use a ramming probe Have the device carried out by a single person.

Aus der WO 97/04926 ist ein Rammgerät bekannt, bei welchem die Ramme zum Ausführen eines Schlags hydraulisch beaufschlagt wird. Zusätzlich ist eine Masse vorgesehen, die gegenüber der Ramme eine verzögerte Schlagbewegung ausführt, wodurch die gesamte Schlagwirkung verbessert wird.From WO 97/04926 a pile driver is known in which the The ram is hydraulically loaded to perform a stroke. additionally a mass is provided which is delayed compared to the ram Performs stroke movement, which improves the overall impact effect becomes.

Die Aufgabe der vorliegenden Erfindung besteht nun darin, ein Rammgerät zu schaffen, das einfach im Aufbau und in der Handhabung ist und das ohne Führungsrahmen oder zusätzliche am Boden abgestützte Stützen mit einem Hebezeug eingesetzt werden kann. Des weiteren soll dieses Rammgerät durch eine Person in Betrieb genommen und bedient werden können. The object of the present invention is now a To create piling equipment that is easy to set up and use and with no guide frame or additional supports supported on the floor a hoist can be used. Furthermore, this piling device can be put into operation and operated by one person.

Erfindungsgemäss erfolgt die Lösung dieser Aufgabe durch die im Anspruch 1 angegebenen Merkmale.According to the invention, this object is achieved by the Claim 1 specified features.

Mit diesem erfindungsgemässen Rammgerät ist es nicht mehr erforderlich, zum Aufsetzen einer neuen Stange auf eine bereits eingerammte Stange dieses von der Stange abzunehmen und danach wieder aufzusetzen. Dadurch wird die Handhabung wesentlich einfacher und kann durch eine Person durchgeführt werden, da ein Teil einer Hebeeinrichtung, die vorzugsweise als Seilzug ausgebildet ist, auf die Stange aufgesteckt werden kann. Hierbei sind einerseits Umlenkrollen an diesem aufsteckbaren Teil und andererseits an der Ramme angebracht. Dadurch lässt sich die Ramme in einfacher Weise entlang der Stange anheben, so dass der Amboss in der Höhe verstellt werden kann.With this pile driver according to the invention, it is no longer necessary to place a new pole on an already driven one Take this off the bar and put it back on afterwards. This makes handling much easier and can be done by one person be carried out as part of a lifting device, which is preferably is designed as a cable, can be attached to the rod. in this connection are on the one hand pulleys on this attachable part and on the other attached to the ram. This makes the ram easy to use Lift along the bar so that the height of the anvil can be adjusted can.

In vorteilhafter Weise ist der Amboss aus einem ringförmigen Körper gebildet, der mittels Keilen an der Stange befestigbar ist, was ermöglicht, den Amboss ohne grossen Aufwand in der Höhe zu verstellen, wobei die Befestigung optimal ist.The anvil is advantageously made of an annular body formed, which can be fastened to the rod by means of wedges, which enables the The anvil can be adjusted in height with little effort, using the attachment is optimal.

In vorteilhafter Weise ist der obenseitige Endbereich der Ramme mit einem Abschlussdeckel versehen, so dass zwischen Kolben und Abschlussdeckel ein Raum gebildet wird, in welche die Druckluft zugeführt werden kann, um die Ramme anzuheben. An diesem Abschlussdeckel ist eine Ventileinrichtung angebracht, welche so ausgebildet ist, dass sie selbsttätig gesteuert die im Abschlussdeckel angebrachte mindestens eine Ablassöffnung zum richtigen Zeitpunkt öffnet und schliesst. Dadurch kann die Steuerung des Rammgerätes kostengünstig und funktionssicher ausgestaltet werden.The top end region of the ram is advantageously included provide an end cover so that between the piston and end cover a room is formed in which the compressed air can be supplied, to raise the ram. There is a valve device on this end cover attached, which is designed so that it automatically controls the at least one drain opening in the end cover for the correct one Time opens and closes. This can control the pile driver be designed cost-effectively and reliably.

Weitere vorteilhafte Ausgestaltungen dieser Einrichtung ergeben sich aus den weiteren abhängigen Ansprüchen.Further advantageous configurations of this device result itself from the further dependent claims.

Eine Ausführungsform des erfindungsgemässen Rammgerätes wird nachfolgend anhand der beiliegenden Zeichnung beispielhaft näher erläutert. An embodiment of the pile driver according to the invention is explained in more detail below with reference to the accompanying drawing.

Es zeigt:

  • Fig. 1 ein erfindungsgemässes Rammgerät mit einzurammender Stange, wobei das Rammgerät abgesenkt ist und auf dem Amboss aufliegt;
  • Fig. 2 das Rammgerät gemäss Fig. 1, wobei dieses im angehobenen Zustand ist und den Amboss zum Verstellen freigibt;
  • Fig. 3 eine Schnittdarstellung durch das Rammgerät, wobei sich die Ramme in der auf den Amboss aufschlagenden Position befindet;
  • Fig. 4 eine Schnittdarstellung durch das Rammgerät gemäss Fig. 3, wobei sich die Ramme in der oberen, zum Schlag auf den Amboss bereiten Zustand befindet; und
  • Fig. 5 eine Schnittdarstellung entlang Linie V-V durch den oberen Teil des Rammgerätes gemäss Fig. 4.
  • It shows:
  • 1 shows a pile driver according to the invention with a rod to be driven in, the pile driver being lowered and resting on the anvil;
  • FIG. 2 shows the pile driver according to FIG. 1, the latter being in the raised state and releasing the anvil for adjustment;
  • 3 shows a sectional view through the piling device, the ram being in the position hitting the anvil;
  • FIG. 4 shows a sectional view through the piling device according to FIG. 3, the ram being in the upper state, ready to strike the anvil; and
  • 5 shows a sectional view along line VV through the upper part of the pile driver according to FIG. 4.
  • Wie aus Fig. 1 ersichtlich ist, ist über eine in den Boden 1 zu rammende Stange 2 ein Amboss 3 gestülpt. Dieser Amboss 3 besteht aus einem ringförmigen Körper 4, der mittels Keilen 5 an der Stange 2 auf einer wählbaren Höhe befestigt ist. Auf dem Amboss 3 aufliegend ist das Rammgerät 6 angebracht. Dieses umfasst eine Kolbenstange 7, die hohlzylindrisch ausgebildet ist und durch deren Längsöffnung 8 die Stange 2 geführt ist. Die Kolbenstange 7 ist mit einem Kolben 9 ausgestattet.As can be seen from Fig. 1, is to be rammed into the ground 1 Rod 2 an anvil 3 put over. This anvil 3 consists of one annular body 4, the wedges 5 on the rod 2 on a selectable Height is fixed. The pile driver 6 is mounted on the anvil 3. This comprises a piston rod 7, which is hollow-cylindrical is and through the longitudinal opening 8, the rod 2 is guided. The piston rod 7 is equipped with a piston 9.

    Die Ramme 10 ist mit einer zylindrischen Bohrung 11 versehen, welche mit dem Kolben 9 zusammenwirkt. Am obenseitigen Endbereich 12 der Ramme 10 ist ein Abschlussdeckel 13 angebracht, während der untenseitige Endbereich 14 der Ramme 10 mit einem Führungsdeckel 15 ausgestattet ist. Der Abschlussdeckel 13 und der Führungsdeckel 15 bilden die Führungen zum Verschieben der Ramme 10 entlang der Kolbenstange 7.The ram 10 is provided with a cylindrical bore 11, which cooperates with the piston 9. At the top end portion 12 of the Ram 10 is attached to an end cover 13, while the bottom End region 14 of the ram 10 is equipped with a guide cover 15. The end cover 13 and the guide cover 15 form the guides for Moving the ram 10 along the piston rod 7.

    Im Abschlussdeckel 13 ist eine Ventileinrichtung 16 angeordnet, während in der Ramme 10 eine Einlassöffnung 17 für Druckluft vorgesehen ist, welche in den Raum 18 zwischen Kolben 9 und Abschlussdeckel 13 mündet. Des weiteren ist im untenseitigen Endbereich 14 der Ramme 10 eine Entlüftungsöffnung 19 angebracht. Die Funktionsweise dieser Ventileinrichtung 16, der Einlassöffnung 17 und der Entlüftungsöffnung 19 wird später noch genau beschrieben.A valve device 16 is arranged in the end cover 13, while an inlet opening 17 for compressed air is provided in the ram 10, which opens into the space 18 between the piston 9 and the end cover 13. Furthermore, there is a ventilation opening in the lower end region 14 of the ram 10 19 attached. The operation of this valve device 16 the inlet opening 17 and the vent opening 19 will be precise later described.

    Auf die in den Boden 1 zu rammende Stange 2 kann ein aufsteckbarer Teil 20 einer Hebeeinrichtung 21 aufgesetzt werden. Dieser Teil 20 weist Umlenkrollen 22 auf, über die ein Seil 23 geführt ist. Am oberen Ende der Kolbenstange 7 ist eine Halteeinrichtung 24 zur Befestigung des Seilendes und eine weitere Umlenkrolle 25 angebracht. Über diese Hebeeinrichtung 21 lässt sich das Rammgerät 6 vom auf den Amboss 3 abgestützten Zustand anheben, wie dies in Fig. 2 dargestellt ist. Dadurch wird der Amboss 3 frei gegeben, er kann, nachdem die Stange 2 um ein bestimmtes Mass in den Boden eingerammt worden ist, und bevor er auf dem Boden 1 zur Anlage kommt, weiter nach oben versetzt werden.On the rod 2 to be rammed into the ground 1, an attachable Part 20 of a lifting device 21 are placed. This part 20 points Deflection pulleys 22, over which a rope 23 is guided. At the top of the piston rod 7 is a holding device 24 for fastening the rope end and a further deflection roller 25 is attached. About this lifting device 21 can the pile driver 6 is raised from the state supported on the anvil 3, as shown in Fig. 2. This releases the anvil 3, he can after the rod 2 rammed into the ground by a certain amount has been, and before he comes to the plant on floor 1, further be moved upwards.

    Fig. 3 zeigt das Rammgerät 6, das entsprechend Fig. 1 sich über die Kolbenstange 7 auf dem Amboss 3 abstützt. Die Ramme 10 befindet sich in der unteren Position, die eingenommen wird, wenn beispielsweise ein Schlag auf den Amboss 3 erfolgt ist. Über die Kolbenstange 7 ist ein elastisches Mittel in Form einer Spiralfeder 26 gestülpt, mittels welcher eine ringförmige Scheibe 27 gegen den Abschlussdeckel 13 gedrückt wird. In diesem Abschlussdeckel sind Ablassöffnungen 28 angebracht, die in der dargestellten Position der Ramme 10 durch die ringförmige Scheibe 27 verschlossen werden, wozu diese mit einer Dichtungsscheibe 29 versehen ist. Die ringförmige Scheibe 27 ist durch aus Bolzen 30 gebildeten Führungsmitteln geführt, derart, dass sie sich vom Abschlussdeckel 13 weg gegen den Kolben 9 hin verschieben kann, um die Ablassöffnungen 28 freigeben zu können. Zur Begrenzung der Verschiebebewegung der ringförmigen Scheibe 27 in Richtung des Kolbens 9 sind die Führungsbolzen 30 mit einem Anschlag 31 ausgestattet. Zwischen der ringförmigen Scheibe 27 und dem Abschlussdeckel 13 sind des weiteren zweite elastische Mittel in Form von Druckfedern 32 angebracht, die über die Führungsbolzen 30 gestülpt sind. Hierbei ist die Kraft der Spiralfeder 26 grösser als die Summe der Kräfte der Druckfedern 32, so dass in der in Fig. 3 dargestellten Position der Ramme 10 die Ablassöffnungen 28 verschlossen sind.Fig. 3 shows the pile driver 6, which corresponds to Fig. 1 on the Piston rod 7 is supported on the anvil 3. The ram 10 is in the lower position, which is taken when, for example, a blow to the anvil 3 is done. About the piston rod 7 is an elastic means in Formed a spiral spring 26, by means of which an annular disc 27th is pressed against the end cover 13. In this cover are Drain openings 28 attached in the illustrated position of the ram 10 are closed by the annular disc 27, for which purpose this with a Sealing washer 29 is provided. The annular disc 27 is through made of bolts 30 guide means guided such that they differ from End cover 13 can move away against the piston 9 to the To be able to release drain openings 28. To limit the displacement movement the annular disc 27 in the direction of the piston 9 are the guide bolts 30 equipped with a stop 31. Between the annular Disc 27 and the end cover 13 are further second elastic Means in the form of compression springs 32 attached over the guide pin 30 are turned over. Here, the force of the coil spring 26 is greater than that Sum of the forces of the compression springs 32, so that in the one shown in FIG. 3 Position of the ram 10, the drain openings 28 are closed.

    In der in Fig. 3 dargestellten Position der Ramme wird über eine Einlassöffnung 33, welche in den Raum 18 zwischen Kolben 9 und Abschlussdeckel 13 mündet, über eine nicht dargestellte Leitung von einem Kompressor Druckluft eingeleitet. Durch den Druckaufbau im Raum 18 wird die Ramme 10 vom Amboss 3 weg nach oben gedrückt und verschiebt sich entlang der Kolbenstange 7. Hierzu ist zwischen dem Abschlussdeckel 13 und der Kolbenstange und zwischen Kolben 9 und zylindrischer Bohrung 11 der Ramme 10 jeweils ein Dichtungselement 34 angebracht.In the position of the ram shown in Fig. 3 is a Inlet opening 33, which in the space 18 between the piston 9 and end cover 13 opens out via a line, not shown, from a compressor Compressed air introduced. Due to the pressure build-up in space 18, the ram 10 pushed away from the anvil 3 and moves along the piston rod 7. This is between the end cover 13 and the piston rod and between the piston 9 and the cylindrical bore 11 of the ram 10 each have a sealing element 34 attached.

    Während des Hochfahrens der Ramme 10 durch den Druckluftzufluss durch die Einlassöffnung 33 gibt die Spiralfeder 26 die ringförmige Scheibe 27 frei. Durch den Überdruck, der im Raum 18 herrscht, bleibt die ringförmige Scheibe 27 in der in Fig. 3 dargestellten dichtenden Position. Die Druckfedern 32 sind entsprechend dimensioniert.During the start of the ram 10 by the compressed air supply through the inlet opening 33, the coil spring 26 gives the annular Disc 27 free. Due to the overpressure that prevails in room 18, the annular disc 27 in the sealing position shown in Fig. 3. The Compression springs 32 are dimensioned accordingly.

    Das Hochfahren der Ramme 10 erfolgt solange, bis eine in der Ramme 10 angebrachte Entlüftungsöffnung 35 über den Kolben 9 gefahren ist, wodurch der Raum 18 mit der Umgebung verbunden wird. Sobald diese Position erreicht ist, findet im Raum 18 ein Druckabfall statt, die Druckfedern 32 bewirken, dass die ringförmige Scheibe 27 vom Abschlussdeckel 13 weg bewegt und gegen die Anschläge 31 gedrückt werden, die Ablassöffnungen 28 im Abschlussdeckel 13 werden geöffnet, die Ramme 10 fällt somit nach unten und schlägt auf den Amboss 3 auf. Durch diese Schlagwirkung, die vom Amboss 3 auf die Stange 2 übertragen wird, wird die Stange 2 um ein bestimmtes Mass in den Boden eingerammt.The ram 10 is started up until one in the Ram 10 attached vent 35 has passed over the piston 9, whereby the room 18 is connected to the environment. Once that position is reached, there is a drop in pressure in space 18, the compression springs 32 cause the annular disc 27 to move away from the end cover 13 and are pressed against the stops 31, the drain openings 28 in End cover 13 are opened, the ram 10 falls down and strikes anvil 3. This impact, which is caused by the anvil 3 is transferred to the rod 2, the rod 2 by a certain amount in rammed the floor.

    Die Ramme 10 befindet sich somit wieder in der in Fig. 3 dargestellten Position, der Zyklus kann von neuem beginnen. Die Zuführung der Druckluft durch die Einlassöffnung 33 kann stetig erfolgen, so dass hierzu keine zusätzliche Steuerung erforderlich ist.The ram 10 is thus again shown in FIG. 3 Position, the cycle can start again. The feeding of the Compressed air through the inlet opening 33 can take place continuously, so that for this purpose no additional control is required.

    Aus der Schnittdarstellung gemäss Fig. 5 ist ersichtlich, dass bei diesem Ausführungsbeispiel im Abschlussdeckel 13 sechs über den Umfang verteilt angeordnete Ablassöffnungen 28 vorgesehen sind. Des weiteren sind drei Führungsbolzen 30 zur Führung der ringförmigen Scheibe 27 angebracht. Selbstverständlich könnten auch andere Anordnungen verwendet werden. Des weiteren wird bei dieser Ausführungsform eine Ramme 10 verwendet, die aus einem dickwandigen Hohlzylinder gebildet ist. Auch hier wären andere Formen möglich, es wäre auch denkbar, dass an der Ramme Zusatzgewichte angehängt werden könnten. 5 shows that at this embodiment in the end cover 13 six over the circumference distributed outlet openings 28 are provided. Furthermore are three guide bolts 30 attached to guide the annular disc 27. Of course, other arrangements could also be used. Of furthermore, in this embodiment, a ram 10 is used, which consists of a thick-walled hollow cylinder is formed. Here, too, there would be other forms possible, it would also be conceivable for additional weights to be attached to the ram could become.

    Eine Ausführungsform eines derartigen erfindungsgemässen Rammgerätes kann beispielsweise ein Gesamtgewicht von etwa 35 Kilogramm aufweisen. Die Fallhöhe der Ramme beträgt hierbei etwa 20 cm. Dieses Rammgerät ist sehr einfach in der Handhabung, welches ohne weiteres durch eine Person durchgeführt werden kann. Zur Inbetriebnahme kann in das Rammgerät und den Amboss eine in den Boden zu rammende Stange eingesetzt werden, der Amboss wird an der Stange befestigt, die Stange wird in die vertikale Position gebracht, der Rammvorgang kann beginnen. Zur Höhenverstellung des Ambosses kann das Rammgerät, wie beschrieben, durch die sehr einfache Hebeeinrichtung vom Amboss abgehoben werden. Zum Verlängern einer Stange durch eine weitere wird lediglich der auf die Stange aufsetzbare Teil 20 von der bereits teilweise in den Boden gerammten Stange abgenommen und auf die darin eingesetzte Verlängerungsstange aufgesetzt. Es ist somit nicht notwendig, jedesmal beim Verlängern der Stange das Rammgerät vollständig von der Stange abzuheben, wodurch die Bedienung sehr vereinfacht wird.An embodiment of such an inventive Piling equipment can, for example, have a total weight of around 35 kilograms exhibit. The fall height of the ram is about 20 cm. This Piling equipment is very easy to use, which is easily done one person can be carried out. For commissioning can be in the Piling device and the anvil inserted a rod to be rammed into the ground the anvil is attached to the rod, the rod is inserted into the vertical position, the ramming process can begin. For height adjustment of the anvil can, as described, the pile driver by the very simple lifting device can be lifted off the anvil. To extend one rod by another becomes only the one that can be placed on the rod Part 20 is removed from the rod that has already been partially rammed into the ground and placed on the extension rod inserted in it. So it is not necessary, the piling device every time the pole is extended to be lifted off the shelf completely, which makes operation very easy becomes.

    Claims (9)

    1. Hammering device, in particular for carrying out percussion probes, which is able to be brought into working connection with a rod (2) to be rammed into the ground (1), composed of a ram (10) which is provided with a longitudinal bore (11) forming a cylinder, in which bore a piston rod (7) with piston (9) is inserted, and which ram (10) is liftable with respect to the piston (9) by means of compressed air and falls back into the initial position after a drop in pressure, characterised in that the piston rod (7) has a continuous longitudinal aperture (8) through which the rod (2) is led, an anvil (3) is mountable on the rod (2) and is adjustable in height, on which anvil the piston rod can be supported, and in that a lifting device (21) is provided which is attachable on the rod (2) and with which the piston rod (7) is liftable together with the ram (10).
    2. Hammering device according to claim 1, characterised in that the lifting device (21) is designed as cable pull whose deflection rollers (25; 22) are affixed on the piston rod (7) and to a part (20) of the lifting device (21) attachable to the rod (2).
    3. Hammering device according to claim 1 or 2, characterised in that the anvil (3) is formed by an annular body (4) which is fixable to the rod (2) by means of wedges (5).
    4. Hammering device according to one of the claims 1 to 3, characterised in that a sealing cover (13) is installed on the upper side end region (12) of the ram (10), which cover encloses in a substantially tight way the piston rod (7) passing through, in that an inlet aperture (33) for compressed air is provided, which comes out into the space (18) between piston (9) and sealing cover (13), and in that a valve device (16) is provided which opens and doses in a controlled way at least one outlet (28) connecting the space (18) with the surroundings.
    5. Hammering device according to claim 4, characterised in that a plurality of outlets (28) in the sealing cap (13) are distributed over the circumference and in that the valve device (16) comprises a displaceable annular disc (27), which doses or respectively opens the outlets (28).
    6. Hammering device according to claim 5, characterised in that first elastic means (32) are disposed between the sealing cover (13) and the annular disc (27) for opening the outlets (28), and in that for closing the outlets (28) second elastic means (26) are disposed between the piston (9) and the annular disc (27), and in that the force of the second elastic means (26) exerted on the annular disc (27) is greater than that of the first elastic means (32).
    7. Hammering device according to claim 5 or 6, characterised in that the displaceable annular disc (27) is guided by guide means (30) which are provided with a stop (31) limiting the displaceability of the displaceable annular disc (27) in the open position.
    8. Hammering device according to one of the claims 4 to 7, characterised in that a ventilation aperture (19) is made on the lower-side end region (14) of the ram (10), which aperture is disposed such that, in the lifted state of the ram (10), it connects the space (18) between the piston (9) and the sealing cover (13) to the surroundings.
    9. Hammering device according to one of the claims 4 to 8, characterised in that the supply of the compressed air takes place continuously through the inlet aperture (33) into the space (18) between piston (9) and sealing cover (13) during operation.
    EP97810619A 1997-09-02 1997-09-02 Hammering device especially for percussion probe driving Expired - Lifetime EP0900884B1 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    EP97810619A EP0900884B1 (en) 1997-09-02 1997-09-02 Hammering device especially for percussion probe driving
    AT97810619T ATE252667T1 (en) 1997-09-02 1997-09-02 RAMMER DEVICE ESPECIALLY FOR PERFORMING RAMM PROBES
    DE59710892T DE59710892D1 (en) 1997-09-02 1997-09-02 Piling device in particular for performing ramming probes

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP97810619A EP0900884B1 (en) 1997-09-02 1997-09-02 Hammering device especially for percussion probe driving

    Publications (2)

    Publication Number Publication Date
    EP0900884A1 EP0900884A1 (en) 1999-03-10
    EP0900884B1 true EP0900884B1 (en) 2003-10-22

    Family

    ID=8230363

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97810619A Expired - Lifetime EP0900884B1 (en) 1997-09-02 1997-09-02 Hammering device especially for percussion probe driving

    Country Status (3)

    Country Link
    EP (1) EP0900884B1 (en)
    AT (1) ATE252667T1 (en)
    DE (1) DE59710892D1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE202010009539U1 (en) 2010-06-25 2010-09-16 Zorn, Bernd Piling device, in particular for Rammsonondierung

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP2119833A1 (en) * 2008-05-13 2009-11-18 Heijmans Infrastructuur B.V. Method for carrying out work in ground
    NL2001571C1 (en) * 2008-05-13 2009-11-20 Heijmans Infrastructuur Bv Subsurface operation performing method, involves guiding treatment device over impression device of slim body, and moving treatment device to intermediate position between two positions on driving surface of slim body

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE1634483A1 (en) * 1966-07-16 1970-05-06 Mueller Ludwig Ramming arrangement, consisting of a body to be rammed in and a driving device
    US3895680A (en) * 1971-12-28 1975-07-22 Allen B Cook Fluid actuated hammer
    WO1997004926A1 (en) * 1995-07-31 1997-02-13 Raunisto, Airi A device performing hammering by means of hydraulic pressure

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE202010009539U1 (en) 2010-06-25 2010-09-16 Zorn, Bernd Piling device, in particular for Rammsonondierung

    Also Published As

    Publication number Publication date
    EP0900884A1 (en) 1999-03-10
    DE59710892D1 (en) 2003-11-27
    ATE252667T1 (en) 2003-11-15

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