EP0093873B1 - Bridge transporting and laying vehicle - Google Patents

Bridge transporting and laying vehicle Download PDF

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Publication number
EP0093873B1
EP0093873B1 EP83103272A EP83103272A EP0093873B1 EP 0093873 B1 EP0093873 B1 EP 0093873B1 EP 83103272 A EP83103272 A EP 83103272A EP 83103272 A EP83103272 A EP 83103272A EP 0093873 B1 EP0093873 B1 EP 0093873B1
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EP
European Patent Office
Prior art keywords
motor vehicle
sliding frame
bridge
vehicle according
rollers
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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
Application number
EP83103272A
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German (de)
French (fr)
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EP0093873A1 (en
Inventor
Theodor Echtler
Werner Hunsinger
Martin Quinot
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Fried Krupp AG
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Fried Krupp AG
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Publication of EP0093873A1 publication Critical patent/EP0093873A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof

Definitions

  • the invention relates to a motor vehicle, in particular a wheeled or tracked vehicle, for transporting and laying a fixed bridge in the open porch with a bridge support, which is displaceably mounted as a whole on a sliding track arranged in the longitudinal direction of the motor vehicle, and with a laying device arranged on the bridge support for storing the fixed bridge behind the bridge girder, as well as with floor support elements.
  • a vehicle in which a fixed bridge transported by it is laid in the so-called free stem is described in DE-A-2 926 594.
  • An auxiliary frame is mounted on the box frame of this vehicle, on which a bridge girder which is displaceable in the longitudinal direction of the vehicle frame is mounted.
  • a laying device is arranged on the bridge girder, with which the fixed bridge also resting on the bridge girder can be laid behind the bridge girder.
  • the fixed bridge In transport operations, the fixed bridge is divided into two bridge segments and stacked on top of one another.
  • the bridge girder is pushed so far forward that the fixed bridge can be placed behind the bridge girder after the coupling of the bridge segments by the laying device.
  • the lower bridge segment is pushed forward and the upper bridge segment is lowered.
  • the coupled fixed bridge is then cantilevered over the obstacle to be bridged and its center of gravity is pushed far behind the bridge girder and then deposited.
  • the fixed bridge After the fixed bridge has been taken up, it is brought back into a position by pushing back the bridge girder, which results in an optimal axle load distribution for driving and thus gives the vehicle better maneuverability.
  • the vehicle additionally has support legs below the driver's cab projecting over the front axle, which support the vehicle on the ground when the fixed bridge is being laid.
  • this does not significantly improve the vehicle's standing torque due to the axles.
  • stem carriers can be formed very easily, they do not significantly impair the stability of the laying vehicle, even with large obstacles to be bridged.
  • the disadvantage is that stem carriers - especially if they are intended to go over longer distances - are complicated and in addition to that. Fixed bridge must be transported itself.
  • the invention has for its object to provide a motor vehicle of the type mentioned in such a way that, despite its light construction, fixed bridges can be laid in the free stem, which are considerably longer than the currently known fixed bridges that can be laid in the free stem.
  • the bridge support is designed as a self-supporting sliding frame and can be pushed out cantilevered over at least one end of the motor vehicle and that the floor support elements for supporting the respective projecting part of the sliding frame are arranged on it, whereby a lever arm between the floor support elements and the center of gravity of the motor vehicle arises, which considerably increases the stabilizing moment when the sliding frame is extended.
  • the sliding frame can be moved together with the fixed bridge beyond at least one end of the motor vehicle and is then caught there by the floor support elements.
  • very long fixed bridges can be installed in the free stem, even with light motor vehicles.
  • Another advantage is that there is a clear interface between the motor vehicle and the laying device due to the sliding frame. This facilitates the retrofitting of a series motor vehicle to a bridge towing vehicle, since this retrofitting is essentially restricted to the attachment of the guide rails or rollers and the installation of a hydraulic pump. There are only a few connecting lines for the energy supply between the motor vehicle and the sliding frame, so that the frame can be disconnected and parked from the motor vehicle. This simplifies maintenance and reduces downtimes of the entire system, since the vehicles and frames are interchangeable.
  • the sliding frame can be moved by almost its entire length over one end or over the ends of the motor vehicle in order to obtain the longest possible arm.
  • the measure of arranging the floor support elements at the end of the respective projecting part of the sliding frame also acts in the same direction.
  • the floor support elements should be designed as extendable or pivotable support legs.
  • the sliding storage of the sliding frame can be done in different ways. According to the invention it is provided that the sliding frame is mounted on the motor vehicle by rollers, since this results in a particularly easy-moving. It should also be guided laterally by vertically mounted rollers.
  • the rollers are mounted on the sliding frame and run in guide rails attached to the motor vehicle.
  • This design is particularly useful when the sliding frame has only one set of rollers in the area of the end that cannot be moved out, but otherwise rests loosely on the motor vehicle.
  • the sliding frame should be able to be raised by the floor support elements to such an extent that its end which can be moved out easily lifts off the end of the motor vehicle there. If this lifting is carried out, the motor vehicle can move forward until the roller set strikes the rear end of the guide rails, the sliding frame remaining on the floor support elements.
  • the fixed bridge can then be put down by the laying device.
  • the advantage of this embodiment is that no separate drive for pushing out the sliding frame is necessary. However, this embodiment can only be used on relatively flat terrain.
  • the sliding frame is slidably mounted on two sets of rollers arranged at a distance from one another in the longitudinal direction of the motor vehicle.
  • the sliding frame for the laying process when the motor vehicle is stationary is moved cantilevered outward with the fixed bridge.
  • the floor support elements are only lowered after they have been completely moved out.
  • roller sets should be arranged on the motor vehicle in the region of the end or the ends beyond which the sliding frame can be moved, or on the sliding frame and the guide rails on the motor vehicle.
  • the invention provides that the fixed bridge can be moved on the sliding frame and / or the sliding frame under the fixed bridge so that the center of gravity of the fixed bridge can always be kept in a favorable position, especially in the coupled state, before the actual laying process begins.
  • the bridge laying vehicle 1 shown in FIGS. 1 to 8 has a chassis frame 2 with a driver's cab attached at the front 3.
  • Four wheel axles 4, 5, 6, 7 are suspended from the chassis frame 2.
  • a sliding frame 8 On the chassis frame 2, a sliding frame 8 is placed, which has guide rails 9 running in the longitudinal direction on both sides. It is movably mounted on two roller sets 10, 11 which are arranged in the rear area on the chassis frame 2 and are arranged at a distance from one another, each with two opposing rollers or roller groups, which engage in the guide rails 9 on the sliding frame 8.
  • a downwardly extendable support leg 13 At the rear end of the sliding frame 8, a downwardly extendable support leg 13 is attached to both 'sides.
  • a two-part fixed bridge 12 is arranged on the sliding frame 8.
  • a boom 14 articulated at the front end of the sliding frame 8 and a laying arm 15 arranged at the rear end of the sliding frame 8 belong to a laying device, by means of which the fixed bridge 12 in the sequence, as shown in FIGS Waters 16 can be excited.
  • FIG. 1 the driving position of the bridge laying vehicle 1 is shown, in which the sliding frame 8 is fully seated on the chassis frame 2, the support legs 13 are raised and the fixed bridge 12 are divided into two bridge segments 17.18, which are pushed one above the other.
  • FIG. 2 shows the beginning of the laying process on the bank 19 of the body of water 16.
  • the lower bridge segment 18 is moved backwards over the laying arm 15 and pivoted a little downward with it, while the upper bridge segment 17, guided by the end casual 14 and an auxiliary arm 20, moved obliquely downwards.
  • the two bridge segments 17, 18 are coupled to each other in the middle after lowering the left bridge segment 17 and swiveling up the right bridge segment 18.
  • FIG. 4 shows, the coupled fixed bridge 12 is then moved forward as a whole, that is to say in the direction of travel, in order to achieve a better center of gravity for the subsequent process.
  • FIG. 5 With the fixed bridge 12 moved fully forward, the sliding frame 8 is now extended to the rear, being guided through the roller sets 10, 11.
  • the movement of the fixed bridge 12 to the front and that of the sliding frame 8 to the rear can run simultaneously or in succession, although the center of gravity of the fixed bridge 12 should expediently always lie above the motor vehicle 1 and preferably in front of the rear axle 7.
  • Figure 6 shows the end position of the sliding frame. 8 with extended and therefore supported on the floor support legs 13, so that the sliding frame 8 is now supported at both ends like a bridge.
  • FIG. 7 shows how the fixed bridge 12 has been extended completely to the rear from its front position shown in FIGS. 5 and 6 and - which cannot be seen completely here - spans the water 16. This is the critical load state in which the tipping moment emanating from the fixed bridge 12 is greatest. However, the weight of the fixed bridge 12 is guided directly into the ground via the support legs 13, the sliding frame 8 and above all the heavy bridge laying vehicle 1 acting as a counterweight, so to speak. Due to the extended sliding frame 8, the effective lever arm on which the bridge-laying vehicle 1 engages with its center of gravity is extraordinarily large, so that even with lighter bridge-laying vehicles 1, very long and therefore heavy fixed bridges 12 can be laid.
  • FIG. 9 shows a somewhat different embodiment of a bridge laying vehicle 21.
  • the bridge laying vehicle 21 has a chassis frame 22 with a driver's cab 23 attached at the front and four wheel axles 24, 25, 26, 27.
  • a sliding frame 28 is also placed on the chassis frame 22, but differently than in the example shown in FIGS. 1 to 8.
  • the chassis frame 22 has two guide rails 29 which are arranged next to one another at a distance and run in the longitudinal direction.
  • the sliding frame 8 has only one set of rollers 30, the rollers on both sides of which engage in the guide rails 29 from the inside, so that they are supported in the vertical direction.
  • vertically mounted rollers 31 are arranged, which limit the lateral movement of the sliding frame 28.
  • a fixed bridge 32 with bridge segments 33, 34 is arranged on the sliding frame 28, and are already coupled to one another in this illustration.
  • a laying arm 35 and support legs 36 are attached.
  • the bridge laying vehicle 21 moves forward, the sliding frame 28 remaining in place due to the extended support legs 36 and the roller set 30 rolling backwards in the guide rails 29.
  • the bridge laying vehicle 21 advances until the roller set 30 strikes the rear end of the guide rail 29.
  • the support legs 36 are retracted so far that the sliding frame 28 just comes to rest on the rear of the bridge laying vehicle 21.
  • the fixed bridge 32 is then pulled apart and coupled in the same way as shown in FIGS. 2 and 3. Then it is pushed over the respective obstacle, for example a body of water, until it only hangs on the laying arm 35 according to FIG. 7.
  • the fixed bridge 32 is then deposited, as shown in FIG. 8.
  • the sliding frame 28 is pushed onto the bridge laying vehicle 21 in such a way that it is slightly raised again by the support legs 36 and the bridge bending vehicle 1 is reset until the roller set 30 strikes the front end of the guide rail 29.
  • the support legs 36 are then retracted completely and the sliding frame 28 is locked on the bridge laying vehicle 21.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Bridges Or Land Bridges (AREA)

Description

Die Erfindung betrifft ein Kraftfahrzeug, insbesondere Rad- oder Kettenfahrzeug, zum Transportieren und Verlegen einer Festbrücke im freien Vorbau mit einem Brückenträger, der auf einer in Längsrichtung des Kraftfahrzeugs angeordneten Verschiebebahn als Ganzes verschieblich gelagert ist, und mit einer auf dem Brückenträger angeordneten Verlegeeinrichtung zum Ablegen der Festbrücke hinter den Brückenträger, sowie mit Bodenabstützelementen.The invention relates to a motor vehicle, in particular a wheeled or tracked vehicle, for transporting and laying a fixed bridge in the open porch with a bridge support, which is displaceably mounted as a whole on a sliding track arranged in the longitudinal direction of the motor vehicle, and with a laying device arranged on the bridge support for storing the fixed bridge behind the bridge girder, as well as with floor support elements.

Ein Fahrzeug, bei dem eine von ihm transportierte Festbrücke im sogenannten freien Vorbau verlegt wird, ist in der DE-A-2 926 594 beschrieben. Auf dem Kastenrahmen dieses Fahrzeuges ist ein Hilfsrahmen montiert, auf dem ein in Längsrichtung des Fahrzeugges verschiebbarer Brückenträger gelagert ist. Auf dem Brückenträger ist eine Verlegeeinrichtung angeordnet, mit der die ebenfalls auf dem Brückenträger ruhende Festbrücke hinter dem Brückenträger abgelegt werden kann.A vehicle in which a fixed bridge transported by it is laid in the so-called free stem is described in DE-A-2 926 594. An auxiliary frame is mounted on the box frame of this vehicle, on which a bridge girder which is displaceable in the longitudinal direction of the vehicle frame is mounted. A laying device is arranged on the bridge girder, with which the fixed bridge also resting on the bridge girder can be laid behind the bridge girder.

Im Transportbetrieb wird die Festbrücke in zwei Brückensegmente aufgeteilt und übereinander gestapelt. Für den Verladevorgang wird der Brückenträger so weit nach vorn geschoben, daß die Festbrücke nach Kupplung der Brückensegmente durch die Verlegeeinrichtung hinter dem Brückenträger abgelegt werden kann. Zum Kuppeln der beiden Brückensegmente wird das untere Brückensegment nach vorn geschoben und das obere Brückensegment abgesenkt. Mittels eines Verlegearms der Verlegeeinrichtung wird dann die gekuppelte Festbrücke über das zu überbrückende Hindernis freitragend und mit ihrem Schwerpunkt weit hinter dem Brückenträger vorgeschoben und dann abgelegt. Nach Aufnahme der Festbrücke wird sie wieder durch Zurückschieben des Brückenträgers in eine Position gebracht, die eine optimale Achslastverteilung für den Fahrbetrieb ergibt und damit dem Fahrzeug eine bessere Manövrierfähigkeit verleiht.In transport operations, the fixed bridge is divided into two bridge segments and stacked on top of one another. For the loading process, the bridge girder is pushed so far forward that the fixed bridge can be placed behind the bridge girder after the coupling of the bridge segments by the laying device. To couple the two bridge segments, the lower bridge segment is pushed forward and the upper bridge segment is lowered. By means of a laying arm of the laying device, the coupled fixed bridge is then cantilevered over the obstacle to be bridged and its center of gravity is pushed far behind the bridge girder and then deposited. After the fixed bridge has been taken up, it is brought back into a position by pushing back the bridge girder, which results in an optimal axle load distribution for driving and thus gives the vehicle better maneuverability.

Grundlegende Voraussetzung für eine solche Verlegung im freien Vorbau ist, daß das durch die frei auskragende Brücke hervorgerufene Kippmoment kleiner sein muß als das Standmoment des Fahrzeugs. Bei gegebenem Fahrzeuggewicht ist hierdurch die maximal verlegbare Brückenlänge festgelegt. Zur Erhöhung der Brückenlänge muß man, da das Kippmoment kaum beeinflußbar ist, das Standmoment erhöhen. Der zuvor beschriebene verschiebbare Brückenträger ist jedoch dazu ungeeignet.The basic requirement for such a laying in the free stem is that the overturning moment caused by the freely projecting bridge must be smaller than the standing moment of the vehicle. For a given vehicle weight, this defines the maximum bridge length that can be laid. To increase the length of the bridge, since the tipping moment can hardly be influenced, the standing moment must be increased. However, the previously described movable bridge girder is unsuitable for this.

Zwar weist das Fahrzeug nach der DE-A-2 926 594 zusätzlich unterhalb der über die Vorderachse ragenden Fahrerkabine Stützbeine auf, die das Fahrzeug am Boden beim Verlegen der Festbrücke abstützen. Das auf Grund der Achsen gegebene standmoment des Fahrzeugs wird hierdurch jedoch nicht entscheidend verbessert.According to DE-A-2 926 594, the vehicle additionally has support legs below the driver's cab projecting over the front axle, which support the vehicle on the ground when the fixed bridge is being laid. However, this does not significantly improve the vehicle's standing torque due to the axles.

Für das Verlegen von Festbrücken, deren Kippmoment größer ist als das Standmoment des Transportfahrzeuges, ist deshalb eine andere Verlegetechnik entwikkelt worden, bei der zunächst ein teleskopisch ausfahrbarer Vorbauträger mit seinem freien Ende bis zum anderen Ufer (DE-B-1 224 350) oder zumindest bis über einen Teil des zu überbrückenden Hindernisses (DE-B-2 166 758) ausgebracht wird, um sich dort abzustützen. Über diesen Vorbauträger oder an ihm hängend wird dann die Festbrücke mit ihrem freien Ende bis zum anderen Ufer bzw. bis über einen Teil des zu überbrückenden Hindernisses verschoben, wobei der Schwerpunkt der Festbrücke immer innerhalb des Bereichs des Vorbauträgers bleibt. Danach wird die Festbrücke abgelegt und fixiert.For the laying of fixed bridges, the tipping moment of which is greater than the standing moment of the transport vehicle, a different laying technique has therefore been developed, in which a telescopically extendable support beam with its free end to the other bank (DE-B-1 224 350) or at least until it is spread over part of the obstacle to be bridged (DE-B-2 166 758) in order to be supported there. The fixed bridge is then moved with its free end to this bank or to a portion of the obstacle to be bridged over or attached to this support beam, the center of gravity of the fixed bridge always remaining within the area of the support beam. Then the fixed bridge is put down and fixed.

Da solche Vorbauträger sehr leicht ausgebildet werden können, beeinträchtigen sie die Stabilität des Verlegefahrzeuges selbst bei großen zu überbrückenden Hindernissen nicht wesentlich. Nachteilig ist jedoch, daß Vorbauträger - insbesondere wenn sie über größere Entfernungen gehen sollen - kompliziert sind und zusätzlich zu der. Festbrücke selbst transportiert werden müssen.Since such stem carriers can be formed very easily, they do not significantly impair the stability of the laying vehicle, even with large obstacles to be bridged. The disadvantage, however, is that stem carriers - especially if they are intended to go over longer distances - are complicated and in addition to that. Fixed bridge must be transported itself.

Zur Erhöhung der Standsicherheit von Brückenlegefahrzeugen ist in der DE-A-2 641 807 ferner vorgeschlagen, Stützbeine vorzusehen, die sich nach vorn vor die Front des Fahrzeuges schwenken lassen. Dies macht jedoch einen entsprechend verlängerten Verlegearm erforderlich, damit die Festbrücke hinter den Stützbeinen abgelegt werden kann. Da die Stützbeine zudem am Fahrzeug selbst angebracht sind, kann ihre Vorlage nach dem Verschwenken aus Festigkeitsgründen nur relativ gering sein, so daß die Standsicherheit bei längeren Festbrücken ebenfalls nicht ausreichend ist.In order to increase the stability of bridge laying vehicles, it is also proposed in DE-A-2 641 807 to provide support legs which can be swiveled forward in front of the front of the vehicle. However, this requires a correspondingly extended installation arm so that the fixed bridge can be placed behind the support legs. Since the support legs are also attached to the vehicle itself, their presentation after swiveling for strength reasons can only be relatively small, so that the stability with longer fixed bridges is also not sufficient.

Der Erfindung liegt die Aufgabe zugrunde, ein Kraftfahrzeug der eingangs genannten Art so auszubilden, daß mit ihm trotz leichter Konstruktion Festbrücken im freien Vorbau verlegt werden können, die erheblich länger sind als die derzeit bekannten, im freien Vorbau verlegbaren Festbrücken.The invention has for its object to provide a motor vehicle of the type mentioned in such a way that, despite its light construction, fixed bridges can be laid in the free stem, which are considerably longer than the currently known fixed bridges that can be laid in the free stem.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Brückenträger als selbsttragender Schieberahmen ausgebildet und über mindestens ein Ende des Kraftfahrzeuges auskragend ausschiebbar ist und daß an ihm die Bodenabstützelemente zur Abstützung des jeweils auskragenden Teils des Schieberahmens angeordnet sind, wodurch ein Hebelarm zwischen Bodenabstützelementen und Schwerpunkt des Kraftfahrzeugs entsteht, der das stabilisierende Moment bei ausgefahrenem Schieberahmen beträchtlich vergrößert.This object is achieved in that the bridge support is designed as a self-supporting sliding frame and can be pushed out cantilevered over at least one end of the motor vehicle and that the floor support elements for supporting the respective projecting part of the sliding frame are arranged on it, whereby a lever arm between the floor support elements and the center of gravity of the motor vehicle arises, which considerably increases the stabilizing moment when the sliding frame is extended.

Im Unterschied zum in der DE-A-2 926 594 beschriebenen Kraftfahrzeug ist hier der Schieberahmen zusammen mit der Festbrücke über zumindest ein Ende des Kraftfahrzeuges hinaus bewegbar und wird dann dort durch die Bodenabstützelemente aufgefangen. Hierdurch entsteht ein entsprechend langer Hebelarm zwischen den Bodenabstützelementen und dem Schwerpunkt des Kraftfahrzeuges, so daß das Standmoment bei ausgefahrenem Schieberahmen wesentlich größer ist als bei den bekannten Lösungen. Auf diese Weise können selbst mit leichten Kraftfahrzeugen sehr lange Festbrücken im freien Vorbau verlegt werden.In contrast to the motor vehicle described in DE-A-2 926 594, here the sliding frame can be moved together with the fixed bridge beyond at least one end of the motor vehicle and is then caught there by the floor support elements. This creates a correspondingly long lever arm between the floor support elements and the center of gravity of the motor vehicle, so that the standing torque is essential when the sliding frame is extended is larger than in the known solutions. In this way, very long fixed bridges can be installed in the free stem, even with light motor vehicles.

Ein weiterer Vorteil besteht darin, daß durch den Schieberahmen zwischen Kraftfahrzeug und Verlegeeinrichtung eine klare Schnittstelle besteht. Dies erleichtert die Umrüstung eines Serienkraftfahrzeugs zu einem Brückentegefahrzeug, da diese Umrüstung sich im wesentlichen auf den Anbau der Führungsschienen oder Rollen und den Einbau einer Hydraulikpumpe beschränkt. Zwischen Kraftfahrzeug und Schieberahmen gibt es nur wenige Verbindungsleitungen für die Energieversorgung, so daß der Rahmen vom Kraftfahrzeug getrennt und abgestellt werden kann. Dies erleichtert die Wartung und verringert die Ausfallzeiten des gesamten Systems, da Kraftfahrzeuge und Rahmen untereinander austauschbar sind.Another advantage is that there is a clear interface between the motor vehicle and the laying device due to the sliding frame. This facilitates the retrofitting of a series motor vehicle to a bridge towing vehicle, since this retrofitting is essentially restricted to the attachment of the guide rails or rollers and the installation of a hydraulic pump. There are only a few connecting lines for the energy supply between the motor vehicle and the sliding frame, so that the frame can be disconnected and parked from the motor vehicle. This simplifies maintenance and reduces downtimes of the entire system, since the vehicles and frames are interchangeable.

In Ausbildung der Erfindung ist vorgesehen, daß der Schieberahmen um annähernd seine gesamte Länge über das eine Ende oder über die Enden des Kraftfahrzeugs hinausbewegbar ist, um einen möglichst langen Hebelarm zu erhalten. In gleicher Richtung wirkt auch die Maßnahme, die Bodenabstützelemente an dem Ende des jeweils auskragenden Teils des Schieberahmens anzuordnen. Dabei sollten die Bodenabstützelemente als ausfahrbare oder ausschwenkbare Stützbeine ausgebildet sein.In an embodiment of the invention it is provided that the sliding frame can be moved by almost its entire length over one end or over the ends of the motor vehicle in order to obtain the longest possible arm. The measure of arranging the floor support elements at the end of the respective projecting part of the sliding frame also acts in the same direction. The floor support elements should be designed as extendable or pivotable support legs.

Die verschiebliche Lagerung des Schieberahmens kann auf unterschiedliche Weise geschehen. Nach der Erfindung ist vorgesehen, daß der Schieberahmen durch Rollen auf dem Kraftfahrzeug gelagert ist, da sich hierdurch eine besonders leicht-gängige Verschiebung ergibt. Dabei sollte er auch durch vertikal gelagerte Rollen seitlich geführt werden.The sliding storage of the sliding frame can be done in different ways. According to the invention it is provided that the sliding frame is mounted on the motor vehicle by rollers, since this results in a particularly easy-moving. It should also be guided laterally by vertically mounted rollers.

Bei einer Ausführungsform sind die Rollen am Schieberahmen gelagert und laufen in am Kraftfahrzeug angebrachten Führungsschienen. Diese Ausbildung bietet sich vor allem dann an, wenn der Schieberahmen nur einen Rollensatz im Bereich des nicht hinausbewegbaren Endes aufweist, ansonsten jedoch lose auf dem Kraftfahrzeug aufliegt. Dabei sollte der Schieberahmen durch die Bodenabstützelemente so weit anhebbar sein, daß sein hinausbewegbares Ende leicht vom dortigen Kraftfahrzeugende abhebt. Wird dieses Abheben durchgeführt, so kann das Kraftfahrzeug so weit vorfahren, bis der Rollensatz am hinteren Ende der Führungsschienen anschlägt, wobei der Schieberahmen auf den Bodenabstützelementen stehen bleibt. Die Festbrücke kann dann durch die Verlegeeinrichtung abgelegt werden. Der Vorteil dieser Ausführungsform besteht darin, daß kein eigener Antrieb zum Ausschieben des Schieberahmens notwendig ist. Allerdings ist diese Ausführungsform nur bei relativ ebenem Gelände einsetzbar.In one embodiment, the rollers are mounted on the sliding frame and run in guide rails attached to the motor vehicle. This design is particularly useful when the sliding frame has only one set of rollers in the area of the end that cannot be moved out, but otherwise rests loosely on the motor vehicle. The sliding frame should be able to be raised by the floor support elements to such an extent that its end which can be moved out easily lifts off the end of the motor vehicle there. If this lifting is carried out, the motor vehicle can move forward until the roller set strikes the rear end of the guide rails, the sliding frame remaining on the floor support elements. The fixed bridge can then be put down by the laying device. The advantage of this embodiment is that no separate drive for pushing out the sliding frame is necessary. However, this embodiment can only be used on relatively flat terrain.

Alternativ dazu kann vorgesehen sein, daß der Schieberahmen über zwei in Kraftfahrzeuglängsrichtung im Abstand zueinander angeordnete Rollensätze verschieblich gelagert ist. Bei dieser Ausführungsform wird der Schieberahmen für den Verlegevorgang bei stehendem Kraftfahrzeug mit der Festbrücke nach hinten freitragend hinausbewegt. Erst nach vollständigem Hinausbewegen werden die Bodenabstützelemente abgelassen.Alternatively, it can be provided that the sliding frame is slidably mounted on two sets of rollers arranged at a distance from one another in the longitudinal direction of the motor vehicle. In this embodiment, the sliding frame for the laying process when the motor vehicle is stationary is moved cantilevered outward with the fixed bridge. The floor support elements are only lowered after they have been completely moved out.

Bei dieser Ausführungsform sollten die Rollensätze am Kraftfahrzeug im Bereich des Endes bzw. der Enden angeordnet sein, über das bzw. die der Schieberahmen hinausbewegbar ist, oder am Schiebrahmen und die Führungsschienen am Kraftfahrzeug.In this embodiment, the roller sets should be arranged on the motor vehicle in the region of the end or the ends beyond which the sliding frame can be moved, or on the sliding frame and the guide rails on the motor vehicle.

Schließlich sieht die Erfindung vor, daß die Festbrücke auf dem Schieberahmen und/oder der Schieberahmen unter der Festbrücke bewegbar sind, damit der Schwerpunkt der Festbrücke insbesondere in gekuppeltem Zustand immer in einer günstigen Lage gehalten werden kann, bevor der eigentliche Verlegevorgang beginnt.Finally, the invention provides that the fixed bridge can be moved on the sliding frame and / or the sliding frame under the fixed bridge so that the center of gravity of the fixed bridge can always be kept in a favorable position, especially in the coupled state, before the actual laying process begins.

In der Zeichnung ist die Erfindung an Hand zweier Ausführungsbeispiele näher veranschaulicht. Es zeigen :

  • Fig. 1 bis 8 ein Kraftfahrzeug mit Festbrücke beim Verlegevorgang in verschiedenen Stellungen und
  • Fig. 9 eine andere Ausführungsform eines Kraftfahrzeugs mit Festbrücke beim Verlegevorgang.
In the drawing, the invention is illustrated in more detail using two exemplary embodiments. Show it :
  • 1 to 8 a motor vehicle with fixed bridge during the laying process in different positions and
  • Fig. 9 shows another embodiment of a motor vehicle with a fixed bridge during the laying process.

Das in den Figuren 1 bis 8 dargestellte Brückenlegefahrzeug 1 hat einen Fahrgestellrahmen 2 mit vorn angesetzter Fahrerkabine 3. Am Fahrgestellrahmen 2 sind vier Radachsen 4, 5, 6, 7 aufgehängt.The bridge laying vehicle 1 shown in FIGS. 1 to 8 has a chassis frame 2 with a driver's cab attached at the front 3. Four wheel axles 4, 5, 6, 7 are suspended from the chassis frame 2.

Auf dem Fahrgestellrahmen 2 ist ein in Gitterbauweise ausgebildeter Schieberahmen 8 aufgesetzt, der zu beiden Seiten in Längsrichtung verlaufende Führungsschienen 9 aufweist. Er ist beweglich auf zwei im hinteren Bereich am Fahrgestellrahmen 2 angebrachte, im Abstand zueinander angeordnete Rollensätze 10, 11 mit jeweils zwei gegenüberliegenden Rollen oder Rollengruppen gelagert, die in die Führungsschienen 9 am Schieberahmen 8 einfassen. Am hinteren Ende des Schieberahmens 8 sind zu beiden 'Seiten je ein nach unten ausfahrbares Stützbein 13 befestigt.On the chassis frame 2, a sliding frame 8 is placed, which has guide rails 9 running in the longitudinal direction on both sides. It is movably mounted on two roller sets 10, 11 which are arranged in the rear area on the chassis frame 2 and are arranged at a distance from one another, each with two opposing rollers or roller groups, which engage in the guide rails 9 on the sliding frame 8. At the rear end of the sliding frame 8, a downwardly extendable support leg 13 is attached to both 'sides.

Auf dem Schieberahmen 8 ist eine zweiteilige Festbrücke 12 angeordnet. Ein am vorderen Ende des Schieberahmens 8 angelenkter Ausleger 14 und ein am hinteren Ende des Schieberahmens 8 angeordneter Verlegearm 15 gehören zu einer Verlegeeinrichtung, mittels der die Festbrücke 12 in der Abfolge, wie sie in den Fig. 2 bis 8 dargestellt ist, über beispielsweise ein Gewässer 16 gespannt werden kann.A two-part fixed bridge 12 is arranged on the sliding frame 8. A boom 14 articulated at the front end of the sliding frame 8 and a laying arm 15 arranged at the rear end of the sliding frame 8 belong to a laying device, by means of which the fixed bridge 12 in the sequence, as shown in FIGS Waters 16 can be excited.

In Figur 1 ist die Fahrtstellung des Brückenlegefahrzeugs 1 dargestellt, bei der der Schieberahmen 8 ganz auf dem Fahrgestellrahmen 2 sitzt, die Stützbeine 13 hochgezogen und die Festbrücke 12 in zwei Brückensegmente 17.18 aufgeteilt sind, die übereinander geschoben sind.In Figure 1, the driving position of the bridge laying vehicle 1 is shown, in which the sliding frame 8 is fully seated on the chassis frame 2, the support legs 13 are raised and the fixed bridge 12 are divided into two bridge segments 17.18, which are pushed one above the other.

Figur 2 zeigt den Beginn des Verlegevorgangs am Ufer 19 des Gewässers 16. Hierzu wird das untere Brückensegment 18 nach hinten über den Verlegearm 15 herausbewegt und mit diesem etwas nach unten geschwenkt, während sich das obere Brückensegment 17, geführt von dem Ausleger 14 und einem Hilfsarm 20, schräg nach vornunten bewegt.FIG. 2 shows the beginning of the laying process on the bank 19 of the body of water 16. For this purpose, the lower bridge segment 18 is moved backwards over the laying arm 15 and pivoted a little downward with it, while the upper bridge segment 17, guided by the end casual 14 and an auxiliary arm 20, moved obliquely downwards.

In Figur 3 sind die beiden Brückensegmente 17, 18 nach Absenken des linken Brückensegments 17 und Hochschwenken des rechten Brückensegments 18 miteinander in der Mitte gekuppelt.In Figure 3, the two bridge segments 17, 18 are coupled to each other in the middle after lowering the left bridge segment 17 and swiveling up the right bridge segment 18.

Wie Figur 4 zeigt, wird dann die gekuppelte Festbrücke 12 als Ganzes nach vorn, also in Fahrtrichtung bewegt, um eine bessere Schwerpunktlage für den nachfolgenden Vorgang zu erreichen. Diesen zeigt Figur 5. Mit ganz nach vorn bewegter Festbrücke 12 wird nun der Schieberahmen 8 nach hinten ausgefahren, wobei er durch die Rollensätze 10, 11 geführt wird. Die Bewegung der Festbrücke 12 nach vorn und die des Schieberahmens 8 nach hinten kann dabei gleichzeitig oder auch nacheinander verlaufen, wobei jedoch zweckmäßigerweise der Schwerpunkt der Festbrücke 12 immer über dem Kraftfahrzeug 1 und vorzugsweise vor der Hinterachse 7 liegen sollte. Figur 6 zeigt die Endstellung des Schieberahmens. 8 mit ausgefahrenen und sich deshalb auf dem Boden abstützenden Stützbeinen 13, so daß der Schieberahmen 8 nun an beiden Enden nach Art einer Brücke abgestützt ist.As FIG. 4 shows, the coupled fixed bridge 12 is then moved forward as a whole, that is to say in the direction of travel, in order to achieve a better center of gravity for the subsequent process. This is shown in FIG. 5. With the fixed bridge 12 moved fully forward, the sliding frame 8 is now extended to the rear, being guided through the roller sets 10, 11. The movement of the fixed bridge 12 to the front and that of the sliding frame 8 to the rear can run simultaneously or in succession, although the center of gravity of the fixed bridge 12 should expediently always lie above the motor vehicle 1 and preferably in front of the rear axle 7. Figure 6 shows the end position of the sliding frame. 8 with extended and therefore supported on the floor support legs 13, so that the sliding frame 8 is now supported at both ends like a bridge.

Figur 7 zeigt, wie die Festbrücke 12 aus ihrer in den Figuren 5 und 6 gezeigten vorderen Stellung ganz nach hinten ausgefahren worden ist und - was hier nicht vollständig zu sehen ist - das Gewässer 16 überspannt. Es ist dies der kritische Belastungszustand, bei dem das von der Festbrücke 12 ausgehende Kippmoment am größten ist. Das Gewicht der Festbrücke 12 wird jedoch über die Stützbeine 13 direkt in den Boden geleitet, wobei der Schieberahmen 8 und vor allem das schwere Brückenlegefahrzeug 1 sozusagen als Gegengewicht wirken. Aufgrund des ausgefahrenen Schieberahmens 8 ist dabei der wirksame Hebelarm, an dem das Brückenlegefahrzeug 1 mit seinem Schwerpunkt angreift, außerordentlich groß, so daß selbst bei leichteren Brückenlegefahrzeugen 1 sehr lange und deshalb schwere Festbrücken 12 verlegt werden können.FIG. 7 shows how the fixed bridge 12 has been extended completely to the rear from its front position shown in FIGS. 5 and 6 and - which cannot be seen completely here - spans the water 16. This is the critical load state in which the tipping moment emanating from the fixed bridge 12 is greatest. However, the weight of the fixed bridge 12 is guided directly into the ground via the support legs 13, the sliding frame 8 and above all the heavy bridge laying vehicle 1 acting as a counterweight, so to speak. Due to the extended sliding frame 8, the effective lever arm on which the bridge-laying vehicle 1 engages with its center of gravity is extraordinarily large, so that even with lighter bridge-laying vehicles 1, very long and therefore heavy fixed bridges 12 can be laid.

In Figur 8 ist der Verlegearm 15 ganz nach unten geschwenkt, so daß die Festbrücke 12 an beiden Ufern 19 zur Auflage gekommen ist. Nach Entkuppeln vom Verlegearm 15 kann die Festbrücke 12 befahren werden. Das Aufnehmen der Festbrücke 12 geht im wesentlichen in umgekehrter Reihenfolge vor sich.In Figure 8, the laying arm 15 is pivoted all the way down, so that the fixed bridge 12 has come to rest on both banks 19. After uncoupling from the laying arm 15, the fixed bridge 12 can be driven on. The inclusion of the fixed bridge 12 is essentially in reverse order.

Figur 9 zeigt eine etwas abweichende Ausführungsform eines Brückenlegefahrzeugs 21. Wie beim Ausführungsbeispiel nach den Figuren 1 bis 8 weist das Brückenlegefahrzeug 21 einen Fahrgestellrahmen 22 mit vorn angesetzter Fahrerkabine 23 sowie vier Radachsen 24, 25, 26, 27 auf.FIG. 9 shows a somewhat different embodiment of a bridge laying vehicle 21. As in the exemplary embodiment according to FIGS. 1 to 8, the bridge laying vehicle 21 has a chassis frame 22 with a driver's cab 23 attached at the front and four wheel axles 24, 25, 26, 27.

Auf dem Fahrgestellrahmen 22 ist gleichfalls ein Schieberahmen 28 aufgesetzt, allerdings anders als bei dem in den Figuren 1 bis 8 dargestellten Beispiel. Hier weist nämlich der Fahrgestellrahmen 22 zwei im Abstand nebeneinander angeordnete, in Längsrichtung verlaufende Führungsschienen 29 auf. Am in Fahrtrichtung gesehen vorderen Ende weist der Schieberahmen 8 nur einen Rollensatz 30 auf, dessen beiderseitige Rollen von innen in die Führungsschienen 29 einfassen, so daß sie in vertikaler Richtung abgestützt sind. Im hinteren Bereich des Fahrgestellrahmens 22 sind senkrecht gelagerte Rollen 31 angeordnet, die die seitliche Bewegung des Schieberahmens 28 begrenzen.A sliding frame 28 is also placed on the chassis frame 22, but differently than in the example shown in FIGS. 1 to 8. Here, namely, the chassis frame 22 has two guide rails 29 which are arranged next to one another at a distance and run in the longitudinal direction. At the front end, as seen in the direction of travel, the sliding frame 8 has only one set of rollers 30, the rollers on both sides of which engage in the guide rails 29 from the inside, so that they are supported in the vertical direction. In the rear area of the chassis frame 22, vertically mounted rollers 31 are arranged, which limit the lateral movement of the sliding frame 28.

Auf dem Schieberahmen 28 ist eine Festbrücke 32 mit Brückensegmenten 33, 34 angeordnet, die bei dieser Darstellung schon miteinander gekuppelt sind. Am hinteren Ende des Schieberahmens 28 sind - wie bei der Ausführung nach den Figuren 1 bis 8 - ein Verlegearm 35 sowie Abstützbeine 36 angebracht.A fixed bridge 32 with bridge segments 33, 34 is arranged on the sliding frame 28, and are already coupled to one another in this illustration. At the rear end of the sliding frame 28 - as in the embodiment according to FIGS. 1 to 8 - a laying arm 35 and support legs 36 are attached.

Der Verlegevorgang gestaltet sich bei dieser Ausführungsform wie folgt :

  • In der Fahrstellung nehmen Schieberahmen 28, Stützbeine 36, Verlegearm 35 und die Brückensegmente 33, 34 dieselbe Position wie in Figur I ein, nur daß der Schieberahmen 28 vorn auf dem Rollensatz 30 in den Führungsschienen 29 und hinten lose und seitlich geführt durch die Rollen 31 aufliegt. Zum Ablegen der Festbrücke 32 werden dann zunächst die Stützbeine 36 so weit abgesenkt, daß der Schieberahmen 28 leicht vom Heck des Brückenlegefahrzeugs 21 abhebt.
The laying process in this embodiment is as follows:
  • In the driving position, slide frame 28, support legs 36, laying arm 35 and the bridge segments 33, 34 assume the same position as in FIG lies on. To put down the fixed bridge 32, the support legs 36 are then lowered so far that the sliding frame 28 lifts slightly from the rear of the bridge laying vehicle 21.

Dann fährt das Brückenlegefahrzeug 21 vor, wobei der Schieberahmen 28 wegen der ausgefahrenen Stützbeine 36 an seinem Platz bleibt und der Rollensatz 30 in den Führungsschienen 29 nach hinten rollt. Das Brückenlegefahrzeug 21 fährt so weit vor, bis der Rollensatz 30 am hinteren Ende der Führungsschiene 29 anschlägt. Anschließend werden die Stützbeine 36 wieder soweit eingefahren, daß der Schieberahmen 28 gerade auf dem Heck des Brückenlegefahrzeugs 21 zur Auflage kommt. Anschließend wird die Festbrücke 32 in gleicher Weise, wie in den Figuren 2 und 3 gezeigt, auseinandergezogen und gekuppelt. Dann wird sie über das jeweilige Hindernis, beispielsweise ein Gewässer, vorgeschoben, bis sie nur noch an dem Verlegearm 35 entsprechend Figur 7 hängt. Dann wird die Festbrücke 32-wie in Figur 8 dargestellt - abgelegt.Then the bridge laying vehicle 21 moves forward, the sliding frame 28 remaining in place due to the extended support legs 36 and the roller set 30 rolling backwards in the guide rails 29. The bridge laying vehicle 21 advances until the roller set 30 strikes the rear end of the guide rail 29. Then the support legs 36 are retracted so far that the sliding frame 28 just comes to rest on the rear of the bridge laying vehicle 21. The fixed bridge 32 is then pulled apart and coupled in the same way as shown in FIGS. 2 and 3. Then it is pushed over the respective obstacle, for example a body of water, until it only hangs on the laying arm 35 according to FIG. 7. The fixed bridge 32 is then deposited, as shown in FIG. 8.

Das Aufschieben des Schieberahmens 28 auf das Brückenlegefahrzeug 21 geschieht in der Weise, daß er durch die Stützbeine 36 wieder leicht angehoben wird und das Brückeniegefahrzeug 1 soweit zurücksetzt, bis der Rollensatz 30 am vorderen Ende der Führungsschiene 29 anschlägt. Die Stützbeine 36 werden im Anschluß daran wieder ganz eingefahren und der Schieberahmen 28 auf dem Brückenlegefahrzeug 21 verriegelt.The sliding frame 28 is pushed onto the bridge laying vehicle 21 in such a way that it is slightly raised again by the support legs 36 and the bridge bending vehicle 1 is reset until the roller set 30 strikes the front end of the guide rail 29. The support legs 36 are then retracted completely and the sliding frame 28 is locked on the bridge laying vehicle 21.

Claims (12)

1. A motor vehicle (1, 21), more particularly a wheeled or tracked vehicle, for transporting and laying a freely launched fixed bridge (12, 32) and having : a bridge carrier (8, 28) mounted to slide as a whole on a slideway disposed longitudinally of the motor vehicle (1, 21) ; a laying system (14, 15) disposed on the bridge carrier (8, 28) for depositing the fixed bridge (12, 32) to the rear of the bridge carrier (8, 28) ; and ground-contacting supporting elements (13, 36), characterized in that the bridge carrier takes the form of a self- supporting sliding frame (8, 28) and can be slid cantilevered over at least one end of the motor vehicle (1, 21), and the ground-contacting supporting elements (13, 36) for supporting the particular cantilevered part of the sliding frame (8, 28) are disposed on the bridge carrier, so that a lever arm is produced between the ground-contacting supporting elements (13, 36) and the centre of gravity of the motor vehicle (1,21) which appreciably increases the stabilizing force when the sliding frame (8, 28) is extended.
2. A motor vehicle according to claim 1, characterized in that the sliding frame (8, 28) can be moved by substantially its whole length beyond the or each end of the motor vehicle (1, 21).
3. A motor vehicle according to claims 1 or 2, characterized in that the ground-contacting supporting elements (13, 36) are disposed at the end of the particular cantilevered part of the sliding frame (8, 28).
4. A motor vehicle according to claims 1 to 3, characterized in that the ground-contacting supporting elements take the form of extendible or outwardly pivotable supporting legs (8, 28).
5. A motor vehicle according to claims 1 to 4, characterized in that the sliding frame (8, 28) is mounted on the motor vehicle (1, 21) via rollers.
6. A motor vehicle according to claim 5, characterized in that the sliding frame (28) is guided by vertically mounted rollers (31).
7. A motor vehicle according to claims 5 or 6, characterized in that the rollers (30) are mounted on the sliding frame (28) and run in guide rails (29) disposed on the motor vehicle (21).
8. A motor vehicle according to claim 7, characterized in that the sliding frame (28) has only one set of rollers (30) in the zone of that end which cannot be moved outwards.
9. A motor vehicle according to claim 8, characterized in that the sliding frame (28) can be raised by the ground-contacting supporting elements (36) to such an extent that its end which can be moved outwards readily lifts off that end of the vehicle.
10. A motor vehicle according to one of claims 5 to 7, characterized in that the sliding frame (8) is mounted to slide by rollers via two sets (10,11) of rollers spaced out in the longitudinal direction of the vehicle.
11. A motor vehicle according to claim 10, characterized in that the sets (10, 11) of rollers are disposed on the vehicle (1) in the zone of the or each end beyond which the or each sliding frame (8) can be slid out.
12. A motor vehicle according to claims 1 to 11, characterized in that the fixed bridge (12, 32) can be slid on the sliding frame (8, 28) and/or the sliding frame (8, 28) can be slid under the fixed bridge (12, 32).
EP83103272A 1982-05-08 1983-04-02 Bridge transporting and laying vehicle Expired EP0093873B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823217435 DE3217435A1 (en) 1982-05-08 1982-05-08 MOTOR VEHICLE FOR TRANSPORTING AND LAYING A FIXED BRIDGE
DE3217435 1982-05-08

Publications (2)

Publication Number Publication Date
EP0093873A1 EP0093873A1 (en) 1983-11-16
EP0093873B1 true EP0093873B1 (en) 1988-10-19

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EP83103272A Expired EP0093873B1 (en) 1982-05-08 1983-04-02 Bridge transporting and laying vehicle

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US (1) US4493122A (en)
EP (1) EP0093873B1 (en)
DE (2) DE3217435A1 (en)

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Also Published As

Publication number Publication date
US4493122A (en) 1985-01-15
EP0093873A1 (en) 1983-11-16
DE3217435A1 (en) 1983-11-17
DE3378271D1 (en) 1988-11-24

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