EP2050709B1 - Bracing device with direct support girder bracing support - Google Patents

Bracing device with direct support girder bracing support Download PDF

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Publication number
EP2050709B1
EP2050709B1 EP08017628A EP08017628A EP2050709B1 EP 2050709 B1 EP2050709 B1 EP 2050709B1 EP 08017628 A EP08017628 A EP 08017628A EP 08017628 A EP08017628 A EP 08017628A EP 2050709 B1 EP2050709 B1 EP 2050709B1
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EP
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Prior art keywords
support
outrigger
bracing device
support element
bearing
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EP08017628A
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German (de)
French (fr)
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EP2050709A1 (en
Inventor
Paul Reiter
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Palfinger AG
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Palfinger AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes

Definitions

  • the invention relates to a supporting device for working machines, in particular mobile cranes, with at least one prismatic support carrier and a support element, the prismatic support carrier being movably mounted on the support element via a bearing device, the bearing device having a joint cup arranged on the support element.
  • Support beams are used in many ways. They are used both for stationary machines, such as Lifting platforms, but also for vehicles in stationary labor, such as vehicle cranes used.
  • the general purpose of this support is to support the weight of the work machines together with a - for example, from the vehicle crane - load to be transported against the ground or laterally so that the footprint of the machine increases and thereby the required stability is brought about. Since such machines are often used on uneven ground, it is necessary to make the support beams movable, so that unevenness of the soil can be compensated.
  • Such a movable bearing device of a support beam is from the JP 2001-163581
  • This document shows a spherical support carrier head, which engages in the support element, which rests on the ground.
  • the spherical support beam head is integral with the support beam.
  • the support carrier head mounted in the support element.
  • the support beam or support piston is provided with a dome-shaped head, wherein the support bracket and the support head are made in one piece.
  • the object of the invention is to provide a comparison with the prior art improved supporting device for working machines. Above all, the complex design of the storage devices and support beam heads should be avoided because the production of a solid ball or at least part ball for supporting in the support element is complicated and expensive.
  • the prismatic support beam projects into the joint socket of the support element in the supporting device according to the invention and is supported directly in the joint socket via an annular end face of the support bracket.
  • the support beam does not transfer the force to the support element in a manner already known (for example via a solid ball), but is transferred from the prismatic support support to the support element in the area of the joint socket.
  • the support beam is cylindrical and hollow.
  • the support base may take not only an annular surface but all other surface shapes (eg, square, circle, triangle, etc.).
  • the prism which forms the support carrier body is preferably a straight prism which is preferably at least partially hollow inside. At least partially means in this context that cross braces may be provided in the support carrier body to increase the stability or the front side of the support carrier may be formed closed.
  • the support carrier body can thus be a (at least partially hollow) cuboid, cylinder or other geometric figure having the property of a prism.
  • the support force is built along its height and passed over the end face of the support element.
  • the support carrier is supported by its end face directly in the joint socket of the support element.
  • the support beam is not supported on the support element via a ball shape provided on the support carrier head, but that the hollow body of the support carrier designed as a cylinder is supported directly on the support element via its end face.
  • the cross-sectional area of the support carrier is substantially annular. It is therefore not intended that the transmission of force over a partial spherical surface or the surface of a dome-shaped support carrier head, as is known from the prior art, takes place.
  • the support beam may alternatively have a non-circular cross-sectional area.
  • the end face is at least partially convex, preferably in the form of a rounded ball part surface, is formed
  • the power transmission for supporting the working machine from the support bracket via the convex portion of the end face and a corresponding surface of the joint cup directly on the support element can always be effected uniformly over the entire cross-sectional area of the cylindrical support carrier on the concave contact area of the supporting element. This is advantageous in any working position, since the power transmission to support the machine from the support beam for the most part takes place directly on the support element. In particular, when the support beam engages vertically in the support element, the support forces are transmitted directly from the support beam to the support element.
  • the end face of the support carrier should be designed at least partially corresponding to the surface of the socket.
  • the support beam is indirectly supported on the joint socket of the support element via an intermediate element.
  • Indirect means in this context that, for example, a reinforcing or thickening layer is applied to the end face of the support support in order to obtain the force exerted by the Support beam emanates as evenly distributed on the contact area of the joint socket and thereby prevent heavy wear.
  • the support element on the support carrier may be movable within a predetermined limit by means of a bearing device, wherein a bearing element of the bearing device is arranged at least in regions on the lateral surface of the support carrier.
  • This bearing element serves for the movable mounting of the support element on the support carrier and for guiding the support carrier in the support element, the advantage being that this bearing element is separate from the support carrier is executed and thus no costly production of a directly connected to the support beam or integrally running bearing ball is necessary. In this way, time- and cost-intensive processing of the support support which can be supported against the ground can be dispensed with.
  • the direct support of the cylindrical support carrier on the support means that the stress on the bearing element is significantly reduced.
  • the power transmission for supporting the working machine from the support carrier takes place at least partially via the bearing element on the support element.
  • This power transmission takes place only to a small extent from the support beam via the bearing device and its bearing element on the support element.
  • lateral forces act to support the bearing element. The more oblique the position of the joint, the higher are the side forces acting on the bearing element.
  • the at least one bearing element is arranged like a sleeve on the head region of the support carrier.
  • the head region is the region of the support carrier which is closest to the ground in working position. Due to the cuff-like design of the bearing element, the lateral surface of the support carrier head is annularly surrounded with the bearing element, whereby an all-round mobility of Ab contemplatiementes is given on the support bracket.
  • this bearing element is not arranged completely annular around the lateral surface of the support carrier head around. So it is instead e.g. also conceivable, several sub-areas of the lateral surface of the support beam head with such a bearing element, which is not designed then cuff-shaped to arrange.
  • the at least one bearing element is attached to the support bracket. Likewise, it can be provided to screw the bearing element on the support bracket. This is particularly advantageous under high stress of the supporting device and the bearing element, since the exchangeability is given by the two-sided design. When damaged, thus, the bearing element can be relatively easily and easily replaced.
  • the at least one bearing element has an at least partially spherical surface shape. This embodiment of the bearing element ensures a free spatial angular mobility of the support element on the support beam, which is essential for the use of the machines on uneven ground.
  • the at least one bearing element consists of a different material to the support bracket and the support element.
  • the at least one bearing element consists of plastic.
  • the support carrier and the support element made of metal, preferably made of steel.
  • the supporting device according to the invention can better withstand the high forces acting on them.
  • the support beam 3 is made in two parts, whereby a telescopic extension and retraction can be performed to support.
  • the support bracket 3 may also be made in one piece.
  • the support carrier 3 is formed by the Stütrmethylzylinder 3b and the support carrier piston 3a.
  • Fig. 1 is in the lower part of the support support piston 3a approaching the bearing element 6 to recognize soft part of the bearing device 4 forms. At this bearing device 4, the support element 5 is attached.
  • Fig. 2 is a strong inclination of the support member 5 on the support support piston 3a visible.
  • the limit of inclination or mobility may be at the point of contact of the retaining ring 9 with the area of the lateral surface 7 of the support support piston 3a immediately above the bearing element 6 and / or in the contact region of the support support piston 3a and support support receptacle 5b.
  • Fig. 3 is shown in the upper part of the input and Ausfahrvoriques the support bracket 3.
  • the bearing element 6 serves for the movable guidance of the support element 5 relative to the support support piston 3a.
  • the support element 5, which comprises a support plate 5 a, a support carrier receptacle 5 b, a retaining ring 9 and fixing screws 10, is attached to the support carrier 3 by the retaining ring 9, which is held on the support carrier receptacle 5 b via the fixing screws 10.
  • the majority of the power transmission from the support carrier piston 3a is directly on the support element 5.
  • the area 8b is not used for power transmission and is flat.
  • Fig. 4 is the part of the lateral surface 7 of the support bracket 3 can be seen on which the bearing element 6 of the bearing device 4 can be plugged.
  • the partially rounded cross-sectional area 8 of the support carrier piston 3a can be seen at the lowest end of the support carrier piston 3a, which forms the contact area for transmitting the supporting forces to the support element 5 with the concave region of the support carrier receptacle 5b
  • Fig. 5 shows an exemplary vehicle crane 2, which has a supporting device 1 according to the invention, which in turn has two support beams 3 together with the support element 5.
  • the angle and thus the effect of the load along with the vehicle crane 2 changes on the Supporting device 1.
  • this change in the force influences by two support beams 3 and the respective support elements 5 is compensated.
  • these forces can also be output by support beams 3, which are mounted directly on the vehicle.
  • the bearing element does not necessarily have to be attached to the support beam 3 in order to achieve the advantages of the invention. Namely, the same effect can also be achieved in that the bearing element 6 is arranged around the support element 5 or attached to this and is thus also movably mounted on the support bracket 3.
  • the bearing device 4 - seen from the outside inwards - would first consist of the support beam 3, then of the bearing element 6 and in the innermost of the support element. 5

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Bridges Or Land Bridges (AREA)
  • Vehicle Body Suspensions (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Railway Tracks (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

The device has a prismatic supporting girder (3) and a supporting element (5) arranged at a work machine. The girder is movably supported at the supporting element via a bearing device (4). The bearing device comprises a supporting girder receptacle (5b) arranged at the supporting element. The supporting girder extends into the supporting girder receptacle of the supporting element and possesses a cross sectional surface, by which the girder is directly supported in the supporting girder receptacle. The supporting girder is designed in a cylindrical or concave type.

Description

Die Erfindung betrifft eine Abstützvorrichtung für Arbeitsmaschinen, insbesondere Fahrzeugkrane, mit wenigstens einem an der Arbeitsmaschine anordenbaren prismatischen Stützträger und einem Abstützelement, wobei der prismatische Stützträger über eine Lagervorrichtung am Abstützelement beweglich gelagert ist, wobei die Lagervorrichtung eine am Abstützelement angeordnete Gelenkspfanne aufweist.The invention relates to a supporting device for working machines, in particular mobile cranes, with at least one prismatic support carrier and a support element, the prismatic support carrier being movably mounted on the support element via a bearing device, the bearing device having a joint cup arranged on the support element.

Stützträger werden vielfältig eingesetzt. Sie werden sowohl für stationäre Arbeitsmaschinen, wie z.B. Hubbühnen, aber auch für Fahrzeuge bei stationärem Arbeitseinsatz, wie zB Fahrzeugkrane, verwendet. Die generelle Aufgabe dieser Stützträger liegt darin, das Gewicht der Arbeitsmaschinen samt einer - beispielsweise ab Fahrzeugkran - zu transportierenden Last gegen den Boden oder auch seitlich abzustützen, sodass die Aufstandsfläche der Arbeitsmaschine vergrößert und dadurch die erforderliche Standsicherheit herbeigeführt wird. Da solche Arbeitsmaschinen häufig auf unebenem Untergrund eingesetzt werden, ist es notwendig, die Stützträger beweglich zu gestalten, sodass dadurch Unebenheiten des Bodens ausgeglichen werden können.Support beams are used in many ways. They are used both for stationary machines, such as Lifting platforms, but also for vehicles in stationary labor, such as vehicle cranes used. The general purpose of this support is to support the weight of the work machines together with a - for example, from the vehicle crane - load to be transported against the ground or laterally so that the footprint of the machine increases and thereby the required stability is brought about. Since such machines are often used on uneven ground, it is necessary to make the support beams movable, so that unevenness of the soil can be compensated.

Eine solche bewegliche Lagervorrichtung eines Stützträgers ist aus der JP 2001-163581 bekannt Diese Schrift zeigt einen kugelförmigen Stützträgerkopf, der in das Abstützelement, welches am Boden aufliegt, eingreift. Um die hohen Belastungen, die auf den Stützträger wirken, gleichförmig an das Abstützelement weiterzugeben, ist der kugelförmige Stützträgerkopf einstückig mit dem Stützträger ausgeführt.Such a movable bearing device of a support beam is from the JP 2001-163581 This document shows a spherical support carrier head, which engages in the support element, which rests on the ground. In order to uniformly pass the high loads acting on the support beam to the support member, the spherical support beam head is integral with the support beam.

In ähnlicher Weise ist in der DE 86 180 61 U1 der Stützträgerkopf im Abstützelement angebracht. In dieser Schrift ist der Stützträger bzw. Stützkolben mit einem kalottenförmigen Kopf versehen, wobei Stützträger und Stützträgerkopf einstückig ausgeführt sind.Similarly, in the DE 86 180 61 U1 the support carrier head mounted in the support element. In this document, the support beam or support piston is provided with a dome-shaped head, wherein the support bracket and the support head are made in one piece.

Aufgabe der Erfindung ist es, eine gegenüber dem Stand der Technik verbesserte Abstützvorrichtung für Arbeitsmaschinen bereitzustellen. Vor allem die aufwändige Ausgestaltung der Lagervorrichtungen und Stützträgerköpfe soll vermieden werden, da die Herstellung einer Vollkugel bzw. zumindest Teilkugel zum Abstützen im Abstützelement kompliziert und aufwändig ist.The object of the invention is to provide a comparison with the prior art improved supporting device for working machines. Above all, the complex design of the storage devices and support beam heads should be avoided because the production of a solid ball or at least part ball for supporting in the support element is complicated and expensive.

Um diese Aufgabe zu erfüllen, ragt bei der erfindungsgemäßen Abstützvorrichtung der prismatische Stützträger in die Gelenkspfanne des Abstützelementes hinein und stützt sich über eine ringförmige Stirnseite des Stützträgers direkt in der Gelenkspfanne ab.In order to fulfill this task, the prismatic support beam projects into the joint socket of the support element in the supporting device according to the invention and is supported directly in the joint socket via an annular end face of the support bracket.

Dies führt dazu, dass der Stützträger die Kraft nicht auf bereits bekannte Art (z. B. über eine Vollkugel) auf das Abstützelement überträgt, sondern im Bereich der Gelenkspfanne vom prismatischen Stützträger auf das Abstützelement übertragen wird.As a result, the support beam does not transfer the force to the support element in a manner already known (for example via a solid ball), but is transferred from the prismatic support support to the support element in the area of the joint socket.

Gemäß einer bevorzugten Ausführungsform ist der Stützträger zylinderförmig und hohl ausgeführt. Jedoch kann der Stützträger als Grundfläche nicht nur eine ringförmige Fläche, sondern sämtliche anderen Flächenformen annehmen (z. B. Quadrat, Kreis, Dreieck, usw.). Das Prisma, das den Stützträgerkörper bildet, ist vorzugsweise ein gerades Prisma welches vorzugsweise zumindest teilweise innen hohl ausgeführt ist. Zumindest Teilweise bedeutet in diesem Zusammenhang, dass Querverstrebungen im Stützträgerkörper zur Erhöhung der Stabilität vorgesehen sein können oder auch die Stirnseite des Stützträgers geschlossen ausgebildet sein kann. Je nach Ausführung kann der Stützträgerkörper somit ein (zumindest teilweise hohler) Quader, Zylinder oder andere geometrische Figur sein, welche die Eigenschaft eines Prismas aufweist. Gemeinsam soll den verschiedenen möglichen Prismen allerdings sein, dass die Abstützkraft entlang deren Höhe aufgebaut und über deren Stirnseite auf das Abstützelement weitergegeben wird.According to a preferred embodiment, the support beam is cylindrical and hollow. However, as a base, the support base may take not only an annular surface but all other surface shapes (eg, square, circle, triangle, etc.). The prism which forms the support carrier body is preferably a straight prism which is preferably at least partially hollow inside. At least partially means in this context that cross braces may be provided in the support carrier body to increase the stability or the front side of the support carrier may be formed closed. Depending on the design, the support carrier body can thus be a (at least partially hollow) cuboid, cylinder or other geometric figure having the property of a prism. Common to the various possible prisms, however, be that the support force is built along its height and passed over the end face of the support element.

Erfindungsgemäß ist wie bereits erwähnt vorgesehen, dass sich der Stützträger über seine Stirnseite direkt in der Gelenkspfanne des Abstützelementes abstützt. Der Unterschied zum Stand der Technik besteht darin, dass der Stützträger nicht über eine am Stützträgerkopf vorgesehene Kugelform am Abstützelement abgestützt wird, sondern dass sich der Hohlkörper des als Zylinder ausgeführten Stützträgers über seine Stirnseite direkt am Abstützelement abstützt.According to the invention, as already mentioned, it is provided that the support carrier is supported by its end face directly in the joint socket of the support element. The difference from the prior art is that the support beam is not supported on the support element via a ball shape provided on the support carrier head, but that the hollow body of the support carrier designed as a cylinder is supported directly on the support element via its end face.

Wie ebenfalls erwähnt ist erfindungsgemäß vorgesehen, dass die Querschnittsfläche des Stützträgers im Wesentlichen ringförmig ist. Es ist somit nicht vorgesehen, dass die Kraftübertragung über eine Teilkugelfläche oder die Oberfläche eines kalottenförmigen Stützträgerkopfes, wie aus dem Stand der Technik bekannt ist, erfolgt. Der Stützträger kann alternativ auch eine nicht-kreisförmige Querschnittsfläche aufweisen.As also mentioned, it is provided according to the invention that the cross-sectional area of the support carrier is substantially annular. It is therefore not intended that the transmission of force over a partial spherical surface or the surface of a dome-shaped support carrier head, as is known from the prior art, takes place. The support beam may alternatively have a non-circular cross-sectional area.

Vorteilhaft kann vorgesehen sein, dass die Stirnseite zumindest bereichsweise konvex, vorzugsweise in Form einer abgerundeten Kugelteiloberfläche, ausgebildet istAdvantageously, it can be provided that the end face is at least partially convex, preferably in the form of a rounded ball part surface, is formed

Als besonders vorteilhaft hat es sich dabei herausgestellt, wenn die Kraftübertragung zur Abstützung der Arbeitsmaschine vom Stützträger über den konvexen Bereich der Stirnseite und einer korrespondierenden Oberfläche der Gelenkspfanne direkt auf das Abstützelement erfolgt. Durch diese Ausführungsform kann die kraft immer gleichmäßig über die gesamte Querschnittsfläche des zylinderförmigen Stützträgers auf den konkav ausgeführten Kontaktbereich des Abstützelements erfolgen. Dies ist in jeder Arbeitsstellung vorteilhaft, da die Kraftübertragung zur Abstützung der Arbeitsmaschine vom Stützträger zum Großteil direkt auf das Abstützelement erfolgt. Insbesondere, wenn der Stützträger vertikal in das Abstützelement eingreift, werden die Abstützkräfte direkt vom Stützträger auf das Abstützelement übertragen. Die Stirnseite des Stützträgers sollte zumindest bereichsweise korrespondierend mit der Oberfläche der Gelenkpfanne ausgeführt sein.It has proven to be particularly advantageous if the power transmission for supporting the working machine from the support bracket via the convex portion of the end face and a corresponding surface of the joint cup directly on the support element. By means of this embodiment, the force can always be effected uniformly over the entire cross-sectional area of the cylindrical support carrier on the concave contact area of the supporting element. This is advantageous in any working position, since the power transmission to support the machine from the support beam for the most part takes place directly on the support element. In particular, when the support beam engages vertically in the support element, the support forces are transmitted directly from the support beam to the support element. The end face of the support carrier should be designed at least partially corresponding to the surface of the socket.

Gemäß einem weiteren Ausführungsbeispiel kann vorgesehen sein, dass sich der Stützträger über ein Zwischenelement indirekt an der Gelenkspfanne des Abstützelementes abstützt, Indirekt bedeutet in diesem Zusammenhang, dass auf der Stirnseite des Stützträgers beispielsweise eine Verstärkungs- oder Verdickungsschicht aufgebracht ist, um die Kraft, die vom Stützträger ausgeht möglichst gleichmäßig auf den Kontaktbereich der Gelenkspfanne zu verteilen und dadurch eine starke Abnützung zu verhindern.According to a further embodiment, it may be provided that the support beam is indirectly supported on the joint socket of the support element via an intermediate element. Indirect means in this context that, for example, a reinforcing or thickening layer is applied to the end face of the support support in order to obtain the force exerted by the Support beam emanates as evenly distributed on the contact area of the joint socket and thereby prevent heavy wear.

Besonders vorteilhaft kann vorgesehen sein, das Abstützelement am Stützträger über eine Lagervorrichtung innerhalb vorgegebener Grenzen beweglich zu halten, wobei ein Lagerelement der Lagervorrichtung zumindest bereichsweise an der Mantelfläche des Stützträger angeordnet ist. Dieses Lagerelement dient zur beweglichen Lagerung des Abstützelements am Stützträger und zur Führung des Stützträgers im Abstützelement, wobei der Vorteil darin liegt, dass dieses Lagerelement separat vom Stützträger ausgeführt ist und somit keine aufwändige Herstellung einer mit dem Stützträger direkt verbundenen bzw. einstückig ausgeführten Lagerkugel notwendig ist. Auf diese Weise können zeit- und kostenintensive Bearbeitungen des gegen den Untergrund abstützbaren Stützträgers entfallen. Für das Lagerelement bedeutet das direkte Abstützen des zylinderförmigen Stützträgers am Abstützelement, dass die Beanspruchung des Lagerelements deutlich verringert wird.Particularly advantageously, it may be provided to keep the support element on the support carrier movable within a predetermined limit by means of a bearing device, wherein a bearing element of the bearing device is arranged at least in regions on the lateral surface of the support carrier. This bearing element serves for the movable mounting of the support element on the support carrier and for guiding the support carrier in the support element, the advantage being that this bearing element is separate from the support carrier is executed and thus no costly production of a directly connected to the support beam or integrally running bearing ball is necessary. In this way, time- and cost-intensive processing of the support support which can be supported against the ground can be dispensed with. For the bearing element, the direct support of the cylindrical support carrier on the support means that the stress on the bearing element is significantly reduced.

Gemäß einem weiteren Ausführungsbeispiel kann vorgesehen sein, dass die Kraftübertragung zur Abstützung der Arbeitsmaschine vom Stützträger zumindest teilweise über das Lagerelement auf das Abstützelement erfolgt. Diese Kraftübertragung findet nur zu einem kleinen Teil vom Stützträger über die Lagervorrichtung und dessen Lagerelement auf das Abstützelement statt. Vor allem wenn die Abstützvorrichtung schräg am Untergrund aufliegt und somit der Stützträger nicht exakt vertikal in das Abstützelement eingreift, wirken auch Seitenkräfte zur Abstützung auf das Lagerelement ein. Je schräger die Stellung des Gelenks, desto höher sind die Seitenkräfte die über das Lagerelement wirken.According to a further embodiment, it may be provided that the power transmission for supporting the working machine from the support carrier takes place at least partially via the bearing element on the support element. This power transmission takes place only to a small extent from the support beam via the bearing device and its bearing element on the support element. Especially when the support device rests obliquely on the ground and thus the support carrier does not engage exactly vertically in the support element, also lateral forces act to support the bearing element. The more oblique the position of the joint, the higher are the side forces acting on the bearing element.

Als besonders vorteilhaft hat es sich dabei herausgestellt, wenn das mindestens eine Lagerelement manschettenartig am Kopfbereich des Stützträgers angeordnet ist. Als Kopfbereich wird in diesem Fall der Bereich des Stützträgers bezeichnet, der in Arbeitsstellung dem Boden am nächsten ist. Durch die manschettenartige Ausführung des Lagerelements ist die Mantelfläche des Stützträgerkopfes ringförmig mit dem Lagerelement umgeben, wodurch eine allseitige Beweglichkeit des Abstützeiementes am Stützträger gegeben ist. Trotz dieser vorteilhaften Ausführung ist es auch möglich, dass dieses Lagerelement nicht komplett ringförmig um die Mantelfläche des Stützträgerkopfes herum angeordnet ist. So ist es stattdessen z.B. auch denkbar, mehrere Teilbereiche der Mantelfläche des Stützträgerkopfes mit einem solchen Lagerelement, welches dann nicht manschettenförmig ausgeführt ist, anzuordnen.It has proven to be particularly advantageous if the at least one bearing element is arranged like a sleeve on the head region of the support carrier. In this case, the head region is the region of the support carrier which is closest to the ground in working position. Due to the cuff-like design of the bearing element, the lateral surface of the support carrier head is annularly surrounded with the bearing element, whereby an all-round mobility of Abstützeiementes is given on the support bracket. Despite this advantageous embodiment, it is also possible that this bearing element is not arranged completely annular around the lateral surface of the support carrier head around. So it is instead e.g. also conceivable, several sub-areas of the lateral surface of the support beam head with such a bearing element, which is not designed then cuff-shaped to arrange.

Eine vorteilhafte Ausführungsform sieht vor, dass das mindestens eine Lagerelement auf den Stützträger aufgesteckt ist. Ebenso kann vorgesehen sein, das Lagerelement am Stützträger anzuschrauben. Dies ist besonders bei hoher Beanspruchung der Abstützvorrichtung und des Lagerelements vorteilhaft, da durch die zweiteitige Ausführung die Auswechselbarkeit gegeben ist. Bei Beschädigung kann somit das Lagerelement relativ unkompliziert und einfach ausgetauscht werden.An advantageous embodiment provides that the at least one bearing element is attached to the support bracket. Likewise, it can be provided to screw the bearing element on the support bracket. This is particularly advantageous under high stress of the supporting device and the bearing element, since the exchangeability is given by the two-sided design. When damaged, thus, the bearing element can be relatively easily and easily replaced.

Eine bevorzugte Ausführungsform sieht vor, dass das mindestens eine Lagerelement eine zumindest bereichsweise sphärische Oberflächenform aufweist. Diese Ausführungsform des Lagerelements gewährleistet eine freie räumliche Winkelbeweglichkeit des Abstützelements am Stützträger, welche für den Einsatz der Arbeitsmaschinen auf unebenem Untergrund unerlässlich ist.A preferred embodiment provides that the at least one bearing element has an at least partially spherical surface shape. This embodiment of the bearing element ensures a free spatial angular mobility of the support element on the support beam, which is essential for the use of the machines on uneven ground.

Gemäß einem weiteren Ausführungsbeispiel ist vorgesehen, dass das mindestens eine Lagerelement aus einem zum Stützträger und zum Abstützelement verschiedenen material besteht. In diesem Zusammenhang kann es von Vorteil sein, wenn das mindestens eine Lagerelement aus Kunststoff besteht.According to a further embodiment, it is provided that the at least one bearing element consists of a different material to the support bracket and the support element. In this context, it may be advantageous if the at least one bearing element consists of plastic.

Gemäß einer vorteilhaften Ausgestaltung kann vorgesehen sein, dass der Stützträger und das Abstützelement aus Metall, vorzugsweise aus Stahl, bestehen. Durch diese Ausführungsform kann die erfindungsgemäße Abstützvorrichtung den auf sie einwirkenden hohen Kräften besser standhalten.According to an advantageous embodiment it can be provided that the support carrier and the support element made of metal, preferably made of steel. By this embodiment, the supporting device according to the invention can better withstand the high forces acting on them.

Darüber hinaus wird auch Schutz für eine Arbeitsmaschine, insbesondere einen Fahrzeugkran und fahrzeuggestützte oder selbst fahrbare Hubarbeitsbühnen, mit einer Abstützvorrichtung nach einem der Ansprüche 1 bis 15 begehrt.In addition, protection for a work machine, in particular a vehicle crane and vehicle-based or self-propelled aerial work platforms, with a support device according to one of claims 1 to 15 coveted.

Weitere Einzelheiten und Vorteile der vorliegenden Erfindung werden anhand der Figurenbeschreibung unter Bezugnahme auf die in den Zeichnungen dargestellten Ausführungsbeispiele näher erläutert. Darin zeigen:

Fig. 1 und 2
eine Seitenansicht des Stützträgers,
Fig.3
einen Querschnitt durch den Stützträger samt Abstützelement und Lagerelement,
Fig. 4
einen Teilausschnitt aus der Lagervorrichtung und
Fig. 5
einen Fahrzeugkran samt Abstützvorrichtung.
Further details and advantages of the present invention will be explained with reference to the figure description with reference to the embodiments illustrated in the drawings. Show:
Fig. 1 and 2
a side view of the support bracket,
Figure 3
a cross section through the support beam together with the support element and bearing element,
Fig. 4
a partial section of the storage device and
Fig. 5
a vehicle crane including outrigger.

In den Figuren ist der Stützträger 3 zweiteilig ausgeführt, wodurch ein teleskopartiges Aus- und Einfahren zum Abstützen vollzogen werden kann. Alternativ kann der Stützträger 3 auch einstückig ausgeführt sein. In der folgenden Figurenbeschreibung wird der Stützträger 3 durch den Stütrträgerzylinder 3b und den Stützträgerkolben 3a gebildet.In the figures, the support beam 3 is made in two parts, whereby a telescopic extension and retraction can be performed to support. Alternatively, the support bracket 3 may also be made in one piece. In the following description of the figures the support carrier 3 is formed by the Stütrträgerzylinder 3b and the support carrier piston 3a.

In Fig. 1 ist im unteren Bereich des Stützträgerkolbens 3a ansatzweise das Lagerelement 6 zu erkennen, weiches einen Teil der Lagervorrichtung 4 bildet. An dieser Lagervorrichtung 4 ist das Abstützelement 5 angebracht.In Fig. 1 is in the lower part of the support support piston 3a approaching the bearing element 6 to recognize soft part of the bearing device 4 forms. At this bearing device 4, the support element 5 is attached.

In Fig. 2 ist eine starke Schrägstellung des Abstützelementes 5 am Stützträgerkolben 3a ersichtlich. Die Grenze der Schrägstellung bzw. der Beweglichkeit (siehe dazu Fig. 3) kann beim Berührungspunkt des Halteringes 9 mit dem Bereich der Mantelfläche 7 des Stützträgerkolbens 3a unmittelbar oberhalb des Lagerelementes 6 und/oder im Kontaktbereich von Stützträgerkolben 3a und Stützträgeraufnahme 5b liegen.In Fig. 2 is a strong inclination of the support member 5 on the support support piston 3a visible. The limit of inclination or mobility (see Fig. 3 ) may be at the point of contact of the retaining ring 9 with the area of the lateral surface 7 of the support support piston 3a immediately above the bearing element 6 and / or in the contact region of the support support piston 3a and support support receptacle 5b.

In Fig. 3 ist im oberen Bereich die Ein- und Ausfahrvorrichtung des Stützträgers 3 gezeigt. Im unteren Bereich ist ein Vertikalschnitt durch die Lagervorrichtung 4 erkennbar. Das Lagerelement 6 dient zur beweglichen Führung des Abstützelementes 5 relativ zum Stützträgerkolben 3a. Das Abstützelement 5, das einen Abstützteller 5a, eine Stützträgeraufnahme 5b, einen Haltering 9 und Fixierschrauben 10 umfasst, ist durch den Haltering 9, der über die Fixierschrauben 10 an der Stützträgeraufnahme 5b gehalten wird, am Stützträger 3 angebracht. Wie aus der Figur ersichtlich, erfolgt der Großteil der Kraftübertragung vom Stützträgerkolben 3a direkt auf das Abstützelement 5. Erkennbar ist in dieser Figur auch der konvexe Bereich 8a der Stirnseite 8. Der Bereich 8b dient nicht zur Kraftübertragung und ist eben ausgeführt.In Fig. 3 is shown in the upper part of the input and Ausfahrvorrichtung the support bracket 3. In the lower area, a vertical section through the bearing device 4 can be seen. The bearing element 6 serves for the movable guidance of the support element 5 relative to the support support piston 3a. The support element 5, which comprises a support plate 5 a, a support carrier receptacle 5 b, a retaining ring 9 and fixing screws 10, is attached to the support carrier 3 by the retaining ring 9, which is held on the support carrier receptacle 5 b via the fixing screws 10. As can be seen from the figure, the majority of the power transmission from the support carrier piston 3a is directly on the support element 5. It can be seen in this figure, the convex portion 8a of the end face 8. The area 8b is not used for power transmission and is flat.

In Fig. 4 ist der Teil der Mantelfläche 7 des Stützträgers 3 erkennbar, an dem das Lagerelement 6 der Lagervorrichtung 4 aufsteckbar ist. Am untersten Ende des Stützträgerkolbens 3a ist die teilweise abgerundete Querschnittsfläche 8 des Stützträgerkolbens 3a erkennbar, die mit dem konkaven Bereich der Stützträgeraufnahme 5b den Kontaktbereich zur Übertragung der Abstützkräfte auf das Abstützelement 5 bildetIn Fig. 4 is the part of the lateral surface 7 of the support bracket 3 can be seen on which the bearing element 6 of the bearing device 4 can be plugged. The partially rounded cross-sectional area 8 of the support carrier piston 3a can be seen at the lowest end of the support carrier piston 3a, which forms the contact area for transmitting the supporting forces to the support element 5 with the concave region of the support carrier receptacle 5b

Fig. 5 zeigt einen beispielhaften Fahrzeugkran 2, der eine erfindungsgemäße Abstützvorrichtung 1 aufweist, welche wiederum zwei Stützträger 3 samt Abstützelement 5 aufweist. Bei Bewegung einer vom Fahrzeugkran 2 gehaltenen Last verändert sich der Winkel und damit die Wirkung der Last samt Fahrzeugkran 2 auf die Abstützvorrichtung 1. In diesem Fall wird diese Veränderung der Krafteinflüsse durch zwei Stützträger 3 und die jeweiligen Abstützelemente 5 ausgeglichen. Diese Kräfte können natürlich auch durch Stützträger 3, die direkt am Fahrzeug angebracht sind, ausgegeben werden. Fig. 5 shows an exemplary vehicle crane 2, which has a supporting device 1 according to the invention, which in turn has two support beams 3 together with the support element 5. When moving a load held by the vehicle crane 2, the angle and thus the effect of the load along with the vehicle crane 2 changes on the Supporting device 1. In this case, this change in the force influences by two support beams 3 and the respective support elements 5 is compensated. Of course, these forces can also be output by support beams 3, which are mounted directly on the vehicle.

Die Erfindung beschränkt sich nicht auf das gezeigte Ausführungsbeispiel, sondern umfasst alle technischen Äquivalente, die in die Reichweite der nachfolgenden Ansprüche fallen können. In besonderer Weise soll in diesem Zusammenhang darauf hingewiesen werden, dass das Lagerelement nicht zwingend am Stützträger 3 angebracht werden muss, um die erfindungsgemäßen Vorteile zu erzielen. Es kann nämlich derselbe Effekt auch dadurch erzielt werden, dass das Lagerelement 6 um das Abstützelement 5 angeordnet bzw. auf dieses aufgesteckt ist und dadurch ebenfalls am Stützträger 3 beweglich gelagert ist. Bei einer solchen Ausführungsform bestünde die Lagervorrichtung 4 - von außen nach innen gesehen - zuerst aus dem Stützträger 3, dann aus dem Lagerelement 6 und im innersten aus dem Abstützelement 5.The invention is not limited to the illustrated embodiment, but includes all technical equivalents that may fall within the scope of the following claims. In a particular way should be noted in this context that the bearing element does not necessarily have to be attached to the support beam 3 in order to achieve the advantages of the invention. Namely, the same effect can also be achieved in that the bearing element 6 is arranged around the support element 5 or attached to this and is thus also movably mounted on the support bracket 3. In such an embodiment, the bearing device 4 - seen from the outside inwards - would first consist of the support beam 3, then of the bearing element 6 and in the innermost of the support element. 5

Claims (13)

  1. A bracing device (1) for machines, in particular mobile cranes (2), having at least one prismatic outrigger (3) which can be arranged on the machine and a support element (5), wherein the prismatic outrigger (3) is movably mounted via a bearing means (4) on the support element (5) and the bearing means (4) has a joint socket (5b) arranged on the support element (5), characterized in that the outrigger (3) extends into the joint socket (5b) of the support element (5) and has a ring shaped face (8) via which the outrigger (3) is braced directly in the joint socket (5b).
  2. A bracing device according to claim 1, characterized in that the outrigger (3) is formed as a hollow cylinder.
  3. A bracing device according to claim 1 or claim 2, characterized in that the face (8) of the outrigger (3) is annular.
  4. A bracing device according to one of claims 1 to 3, characterized in that the face (8) has a shape which is convex at least in parts, preferably in the shape of a rounded part-spherical surface (8a).
  5. A bracing device according to claim 4, characterized in that to brace the machine, load is transmitted from the outrigger (3) via the convex region (8a) of the face (8) and a corresponding surface of the joint socket (5b) directly to the support element (5).
  6. A bracing device according to one of claims 1 to 3, characterized in that the outrigger (3) is braced via an intermediate element indirectly onto the joint socket of the support element (5).
  7. A bracing device according to one of the preceding claims, characterized in that the support element (5) is movably mounted on the outrigger (3) by means of the bearing means (4) within predetermined limits, wherein at least one bearing element (6) of the bearing means (4) is arranged at least partially on the lining surface (7) of the outrigger (3).
  8. A bracing device according to claim 7, characterized in that to brace the machine, load is at least partially transmitted from the outrigger (3) via the bearing element (6) to the support element (5).
  9. A bracing device according to claim 7 or claim 8, characterized in that the at least one bearing element (6) is arranged in a collar-like manner on the head region of the outrigger (3).
  10. A bracing device according to one of claims 7 to 9, characterized in that the at least one bearing element (6) is attached to the outrigger (3).
  11. A bracing device according to one of claims 7 to 10, characterized in that the at least one bearing element (6) has a surface shape which is spherical at least in parts.
  12. A bracing device according to one of claims 7 to 11, characterized in that the outrigger (3) and the support element (5) are constituted by metal, preferably steel.
  13. A machine, in particular a mobile crane and a vehicle-mounted or automotive lifting platform, characterized by a bracing device in accordance with one of claims 1 to 12.
EP08017628A 2007-10-19 2008-10-08 Bracing device with direct support girder bracing support Active EP2050709B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08017628T PL2050709T3 (en) 2007-10-19 2008-10-08 Bracing device with direct support girder bracing support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0168307A AT505995A1 (en) 2007-10-19 2007-10-19 SUPPORT DEVICE WITH DIRECT SUPPORT SUPPORT

Publications (2)

Publication Number Publication Date
EP2050709A1 EP2050709A1 (en) 2009-04-22
EP2050709B1 true EP2050709B1 (en) 2010-05-12

Family

ID=40283420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017628A Active EP2050709B1 (en) 2007-10-19 2008-10-08 Bracing device with direct support girder bracing support

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EP (1) EP2050709B1 (en)
AT (2) AT505995A1 (en)
DE (1) DE502008000647D1 (en)
DK (1) DK2050709T3 (en)
ES (1) ES2345956T3 (en)
PL (1) PL2050709T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180100850A (en) 2017-03-02 2018-09-12 주식회사수산중공업 Outrigger with slide preventing means

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831774A (en) * 1973-10-05 1974-08-27 H Moore Vehicle outrigger pad structure
JPS52121215A (en) * 1976-04-05 1977-10-12 Tadano Tekkosho:Kk Outrigger
DE8618061U1 (en) 1986-07-05 1986-08-14 Harnischfeger Gmbh, 4600 Dortmund Device for supporting vehicles in a stationary working position
JP2001163581A (en) 1999-12-14 2001-06-19 Kato Works Co Ltd Float mechanism

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ES2345956T3 (en) 2010-10-06
AT505995A1 (en) 2009-05-15
EP2050709A1 (en) 2009-04-22
ATE467601T1 (en) 2010-05-15
DK2050709T3 (en) 2010-07-12
DE502008000647D1 (en) 2010-06-24
PL2050709T3 (en) 2010-10-29

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