WO2012083943A2

WO2012083943A2 - Installation device for arrangement on bridge-laying vehicles and bridge-laying vehicle

Info

Publication number: WO2012083943A2
Application number: PCT/DE2011/075303
Authority: WO
Inventors: Lutz Hanselmann; Michael Wagner
Original assignee: Krauss-Maffei Wegmann Gmbh & Co. Kg
Priority date: 2010-12-08
Filing date: 2011-12-07
Publication date: 2012-06-28
Also published as: DE102010061102A1; WO2012083943A3

Abstract

The invention relates to an installation device for arrangement on bridge-laying vehicles (1), comprising an installation arm (4) for installing a bridge (6), the arm being pivotably mounted in a swivel bearing (5) with respect to the vehicle (1), wherein the swivel bearing (5) can be arranged next to the vehicle contour so as to dissipate pressure forces and the installation arm (4) can be connected to the vehicle (1) so as to transmit tractive forces via a traction coupling (7). The invention further relates to a bridge-laying vehicle comprising an installation arm (4) for installing a bridge (6), the arm being pivotably mounted in a swivel bearing (5) with respect to the vehicle (1), wherein the swivel bearing (5) is arranged on the side of the vehicle contour so as to dissipate pressure forces and the installation arm (4) is connected to the vehicle (1) so as to transmit tractive forces via a traction coupling (7).

Description

Laying device for placement on bridge laying vehicles and

Bridge laying vehicle

The invention relates to a laying device for the arrangement of bridge laying vehicles with a laying arm for laying a bridge, which is mounted in a pivot bearing pivotally relative to the vehicle. Another object of the invention is a bridge laying vehicle with a laying arm for laying a bridge, which is mounted in a pivot bearing pivotally mounted relative to the vehicle. Bridge laying vehicles for transporting and laying a bridge are used in cases where a bridge is to be used only for a certain period of time to cross an obstacle, such as a river. By means of the bridge laying vehicle, the bridges can be transported to their place of use and laid there with a laying device over the obstacle. As soon as the bridge is no longer needed, it can be picked up with the laying device and transported by means of the transport vehicle to another place of use. From EP 2 088 243 A2 a chain-driven bridge laying vehicle is known, in which a laying arm for laying the bridge above the vehicle is arranged pivotably on this. The laying arm is arranged in this vehicle such that the resulting during installation of the bridge forces are introduced via the vehicle in the underground. In order to secure the bridge laying vehicle during the laying process against tilting, a support plate is provided in the front region of the vehicle, which can be pivoted back and forth between a support position and a driving position and counteracts tilting of the vehicle in the support position.

In this type of bridge laying vehicles, it has proved to be disadvantageous that the resulting during installation of the bridge forces are completely introduced via the vehicle in the underground, so the vehicle must be made relatively stable in order to withstand the corresponding forces. For this reason, such a laying arm in any case can not be easily retrofitted in a variety of vehicles. It is an object of the invention to specify a laying device and a bridge laying vehicle in which the vehicle is subjected to less load during the laying process. To solve this problem, it is proposed in a laying device of the type mentioned that the pivot bearing for the transmission of compressive forces in addition to the vehicle contour can be arranged and the laying arm for the transmission of tensile forces via a train coupling to the vehicle is connectable.

In addition, it is proposed in a bridge laying vehicle of the type mentioned above for releasing the above object that the pivot bearing for transmitting compressive forces next to the vehicle contour arranged and the laying arm is connected to transmit tensile forces via a train coupling with the vehicle.

By arranging the pivot bearing next to the vehicle contour, the pressure forces acting on the laying arm and thus the pivot bearing during the laying of the bridge can be led off the vehicle contour directly into the ground. It is not necessary that the vehicle is fully in the power flow and transmits all pressure forces in the ground. To avoid tilting, the forces acting on the laying arm tensile forces are introduced via a train coupling in the vehicle. This results in a reduced burden on the bridge laying vehicle compared with the prior art.

An advantageous embodiment provides that the traction coupling is designed to be variable in length for pivoting the laying arm. As a result, different pivot positions of the laying arm or arranged on this bridge can be achieved, as this for laying or picking up the Bridge are required. The train coupling can be designed as a hydraulic drive. In particular, an embodiment as a hydraulic cylinder is advantageous, wherein the hydraulic cylinder can be arranged in a position above the vehicle, in which it is aligned with the approximately horizontally extending in the transport position laying arm.

A further embodiment provides that the laying arm is connected via a coupling point with the train coupling, which is higher in particular in the transport position than the pivot bearing. The high-lying arrangement of the coupling point results in the reverse conclusion, a low-lying arrangement of the pivot bearing.

In this context, it is of constructive advantage if the pivot bearing is arranged approximately centrally between the coupling point and the footprint of the vehicle.

In a further embodiment, it is proposed that the laying arm is designed such that it is movable in an orbit about the pivot bearing.

Furthermore, it is proposed that the laying arm is of triangular geometry. The bridge receiving side of the laying arm can be formed by a solid support, which is supported on the underside of a supporting structure to form the triangular geometry.

A further embodiment provides that a pressure forces dissipative support device is provided, on which the pivot bearing is arranged. The pivot bearing can be arranged in the region of the upper end of the supporting device, in particular in a common receptacle, whereby a direct derivation of the results when laying the bridge pressure forces. The pressure forces are not introduced via the vehicle in the ground, but take the direct path over the laying arm, the pivot bearing and the support device. In addition, the laying arm and the supporting device can be fastened as a mounting unit via a common mounting point on the vehicle, resulting in a simple installation of the laying arm or the supporting device on a vehicle.

With a view to simple retrofitting of the laying device, it is also proposed that the supporting device be fastened to the vehicle via a mounting point. As a mounting point, for example, serve a welded to the vehicle front flange plate.

Another advantage is an embodiment according to which the mounting point is arranged in the region of the pivot axis. In the region of the mounting point, both the pivot axis for pivoting the laying arm and the supporting device can be mounted in this manner, which makes it easy to retrofit. Finally, it is proposed that the laying arm and the supporting device are arranged such that no pressure forces act on the vehicle when laying the bridge.

Further details and advantages of a laying device according to the invention and of a bridge laying vehicle having such a laying device are explained below with reference to an embodiment shown in the figures. Show: 1 is a side view of a bridge laying vehicle with a arranged in the front region laying device,

Fig. 2 is a perspective view of the laying vehicle of Figure 1 and

FIGS. 3a - 3e different positions to illustrate a laying process.

FIGS. 1 and 2 show a bridge laying vehicle 1 with a laying device 2 arranged in its front region and a rear arm 3 arranged in its rear region. The vehicle 1 is in its transport position, in which a bridge, not shown in Figures 1 and 2 can be recorded on the laying device 2 and the rear arm 3 and transported to a place of use.

The laying device 2 has a pivotable about a pivot bearing 5 Verlegearm 4 with a drive element 9 and two roller guides 12 for laying or picking up the bridge and arranged below the pivot bearing 5 supporting device 10.

The laying arm 4 is pivotally supported by a total of triangular shape and relative to the bridge laying vehicle 1 in a pivot bearing 5. The drive element 9 and the roller guides 12 are arranged on an upper support 4.1 of the laying arm 4, which is in the transport position shown in Figure 1 in an approximately horizontal orientation. Below the support 4.1 further supports 4.2, 4.3, 4.4 are provided, which form a kind of support structure for the upper support 4.1 and run towards each other in the direction of the pivot bearing 5, whereby the approximately dreieckför- mige geometry of the laying arm 4 results. The pivot bearing 5 is arranged in the region of a lower corner of the triangle, resulting in a comparatively low-lying arrangement of the pivot bearing 5. In the area of the corner of the triangle facing the vehicle 1, a coupling point 8 is provided via which the traction coupling 7 is pivotably connected to the laying arm 4. The front end of the triangle forms the free end of the laying arm 4, which can be pivoted by operating the length-adjustable train coupling 7 when laying or picking up the bridge downwards or upwards.

In the train coupling 7 is a hydraulic cylinder, which is pivotally connected on the one hand via the coupling point 8 with the laying arm 4 and on the other hand arranged on the vehicle upper side mounting point 13 pivotally connected to the vehicle 1. In the transport position shown in FIG. 1, the traction coupling 7 is approximately in alignment with the carrier 4.1 of the laying arm 4 receiving the bridge. When the traction coupling 7 is actuated, it pivots about the mounting point 13 above the contour of the vehicle 1. Like the representation can be seen in Figure 1, the pivot bearing 5 is located next to or in the direction of travel in front of the contour of the actual vehicle 1 at the level of a horizontal plane which is located approximately centrally between the coupling point 8 and the footprint S of the vehicle 1. The pivot bearing 5 is located next to the actual vehicle 1, which is why it is possible borrowed to dissipate the laying of the bridge resulting pressure forces on the pivot bearing 5 in the manner of a bypass on a direct route next to the vehicle 1 in the underground. For this purpose, the pivot bearing 5 is provided on the underside with a supporting device 10. The supporting device 10 extends in the vertical direction next to the front contour of the vehicle 1. The pressure forces coming from the laying arm 4 are introduced directly into the upper end of the supporting device 10. The upper end of the support device 10 has a force introduction point, which is located in a common vehicle transverse vertical plane with the pivot bearing 5. Alternatively, it would also be conceivable that the force introduction point is located in the region between the pivot bearing 5 and the front contour of the vehicle 1. About the support device 10, the pressure forces are introduced in the vertical direction in the ground. The support device 10 and the pivot bearing 5 are arranged to each other such that the pressure forces are derived without over the vehicle 1 leading detours directly into the ground. The support device 10 has a support plate 10.1 and two actuating cylinder 10.2 and is attached via a mounting point 11 in front of the chassis of the vehicle 1 at this front. The supporting device 10 forms, together with the laying arm 4, a mounting unit which can be fixed to the vehicle 1 via the mounting point 11. The mounting point forms a one-point interface.

The support plate 10. 1 can be moved from the travel position shown in FIGS. 1 and 2 into a lower support position by actuation of the hydraulic cylinders 10. 2, which are articulated pivotably about the vehicle 1 in the vehicle longitudinal direction Support plate 10.1 supported on the ground. The pivot bearing 5 of the laying arm 4 is arranged in the upper end region of the supporting device 10 approximately at the height of the pivot axes of the hydraulic cylinder 10.2. 2, the mounting point 11 is designed in the manner of a flange connection with a flange plate connected to the vehicle, for example by welding, to which a box-like receptacle 14 of the supporting device 10 is connected. Within the receptacle 14 and the pivot bearing 5 of the laying arm 4 is arranged so that the laying arm 4 as well as the support device 10 can be retrofitted to a vehicle in a simple manner.

In addition to this mechanical connection of the supporting device 10 with the vehicle 1, the interfaces for the supply lines required for the operation of the supporting device 11 are provided in the region of the mounting point 11, for example, connections for the production of a hydraulic connection. About the trained as a flange mounting point 11 results in a few assembly steps requiring attachment of the support device 10 to the vehicle 1, which is particularly suitable as a retrofit solution for already in operation vehicles 1. In the case of such retrofitting, in addition to the provision of corresponding supply connections, only the mounting point 11 on the outer contour of the vehicle 1 must be fastened by welding, for example. Subsequently, the receptacle 14 is connected by screwing on the mounting point 11 to the vehicle 1 and the supply lines connected. In a further step, the traction coupling 7 is mounted between the laying arm 4 and the mounting point 13.

In the area between the lifting cylinders serving as hydraulic cylinders 10.2 of the support device 10, two struts 10.3 are provided for receiving acting on the support plate 10.1 lateral forces. Such lateral forces can especially on the support device 10 and thus also the Swivel bearing 5 act when the vehicle 1 is when laying the bridge in an inclined position relative to the horizontal approximately on a slope. Both the struts 10.3 and the lifting elements 10.2 are hinged at one end within the U-shaped in cross-section receptacle 14 pivotally about extending in the vehicle longitudinal axis. Support shield side, the lifting elements 10.2 are hingedly connected to the support plate end of the struts 10.3. The articulation point in each case of a hydraulic cylinder 10.2 in the receptacle 14 forms together with the articulation point of the associated strut 10.3 and the connection point of the lifting element 10.2 with the support plate end of the strut 10.3 a kind of triangle whose side formed by the lifting element 10.2 is variable in length. Upon actuation of the lifting element 10.2 changes its length, which change the angle of the triangle and the support plate 10.1 can be raised or lowered in a vertical movement.

By means of the support device 10, the pressure forces resulting during laying or picking up of the bridge can be introduced directly into the ground without the vehicle 1 being in the force flow of these compressive forces. Further details of the structure and possible embodiments of the support device 10, via which the pressure forces can lead conveniently next to the vehicle, are described in the German patent application DE 10 2010 036 690 and are to be fully incorporated into the present application (incorporated by reference).

After lowering the support plate 10.1, the pressure forces resulting from the weight of the bridge can be introduced via the laying arm 4 through the pivot bearing 5 and the supporting device 10 directly into the ground. The vehicle 1 is so far not in the power flow. On the vehicle 1 Be transmitted via the tension element 7 only the resulting during installation of the bridge tensile forces, which will be explained in more detail below with reference to a laying process illustrative figures 3a to 3e.

FIG. 3a shows the bridge laying vehicle 1 in a transport position, in which a bridge 6, which consists of two bridge elements 6a, 6b in the exemplary embodiment, is arranged on the top side of the bridge laying vehicle 1 via the laying device 2 and the rear arm 3. In FIG. 3 a, the bridge laying vehicle 1 has already moved up to an obstacle H.

After the bridge 6 has been brought into the position shown in FIG. 3b by juxtaposing the two bridge elements 6a, 6b, the bridge 6 can be driven via the drive element 9 of the laying arm 4 into the position shown in FIG. 3c. Previously, however, the support device 10 is spent in its support position in which the support plate 10.1 is supported on the ground. Then, the bridge 6 can be moved to the position shown in Figure 3c. Due to the leverage ratios very significant pressure forces are derived directly over the laying arm 4 and the support device 10 on the vehicle 1 in the ground in this position. About the train coupling 7 only tensile forces are introduced into the vehicle 1, whereby this is significantly less stressed during installation of the bridge 6, in particular in the position shown in Figure 3c.

Subsequently, by operating the traction coupling 7, the bridge 6 is deposited in the manner shown in FIGS. 3d and 3e. As the illustrations in FIGS. 3c to 3e suggest, a large part of the pressure forces resulting from the installation of the bridge 6 are not introduced directly into the ground via the vehicle 1 but rather in the manner of a bypass via the laying arm 4 or the supporting device 10. without these force components leading to a load on the vehicle 1. The vehicle 1 is acted upon via the tension element 7, which counteracts tilting of the laying arm 4 or the supporting device 10, only with a tensile force, which then transmits to the vehicle 1. The above-described laying device 2 as well as the associated bridge laying vehicle 1 are characterized by a low load on the vehicle components due to the compressive forces resulting when laying a bridge. Due to the ease of arranging the laying device 2 on the vehicle, the laying device 2 described above is also suitable for retrofitting to existing vehicles.

Reference numerals:

1 bridge laying vehicle

2 installation device

3 rear arm

4 laying arm

4.1 - 4.4 Carrier

5 swivel bearings

6 bridge

7 train coupling

8 coupling point

9 drive element

10 support device

10.1 support plate

10.2 actuating cylinder

10.3 strut

1 1 mounting point

12 roller guide

13 mounting point

14 recording

Stand obstacle

Claims

claims:

Laying device for arrangement on bridge laying vehicles (1) with a laying arm (4) for laying a bridge (6), which is mounted pivotably in a pivot bearing (5) relative to the vehicle (1),

characterized,

the swivel bearing (5) can be arranged adjacent to the contour of the vehicle to derive compressive forces, and the laying arm (4) can be connected to the vehicle (1) to transmit tractive forces via a train coupling (7).

Bridge laying vehicle with a laying arm (4) for laying a bridge (6), which is mounted pivotably in a pivot bearing (5) relative to the vehicle,

characterized,

in that the pivot bearing (5) is arranged next to the vehicle contour for discharging compressive forces, and the laying arm (4) is connected to the vehicle (1) for transmitting tensile forces via a train coupling (7).

Laying device or vehicle according to claim 1 or claim 2, characterized in that the traction coupling (7) for pivoting the laying arm (4) is designed variable in length.

Laying device or vehicle according to one of the preceding claims, characterized in that the laying arm (4) via a coupling point (8) with the Zugkopplung (7) is connected, which is higher than the pivot bearing (5).

5. installation device or vehicle according to claim 4, characterized in that the pivot bearing (5) is arranged approximately centrally between the coupling point (8) and the base surface (S) of the vehicle (1).

6. installation device or vehicle according to one of the preceding Ans- prüche, characterized in that the laying arm (4) is designed such that it is in orbit about the pivot bearing (5) movable.

7. laying device or vehicle according to one of the preceding claims, characterized in that the laying arm (4) is of triangular S-shaped geometry.

8. laying device or vehicle according to one of the preceding claims, characterized by a pressure forces dissipative supporting device (10) on which the pivot bearing (5) is arranged.

9. installation device or vehicle according to claim 8, characterized marked characterized in that supporting device (10) via a mounting point (11) on the vehicle (1) is attached.

10. laying device or vehicle according to claim 9, characterized in that the mounting point (11) in the region of the pivot axis (5) is arranged. 11. Laying device or vehicle according to one of the preceding claims, characterized in that the laying arm (4) and the supporting device (10) are arranged such that when laying the bridge (6) no pressure forces on the vehicle (1) act.