EP4083326A1 - Machine for use in civil engineering - Google Patents

Abstract

The application relates to a civil engineering machine (10) with a rail-bound undercarriage (20), which has a chassis (21) with wheels (25) for driving on railway tracks (6), an upper carriage mounted on the undercarriage (20) so that it can rotate about a vertical axis of rotation (30), a leader (50) mounted on the superstructure (30) with a linear guide (54) along which a working carriage (60) with a construction work device (70) is mounted to be movable, and a drive unit for operating the civil engineering machine (10) , wherein the drive unit is arranged in the rail-bound undercarriage (20).

Description

The invention relates to a civil engineering machine with a track-bound undercarriage, which has a chassis with wheels for driving on railroad tracks, an uppercarriage mounted on the undercarriage so that it can rotate about a vertical axis of rotation, a leader mounted on the uppercarriage with a linear guide, along which a working carriage with a construction implement is movably mounted, and a drive unit for operating the civil engineering machine according to the preamble of claim 1.

Civil engineering machines are well known and are used, for example, to create bored piles in the ground, ground anchors or to introduce sheet piles into a ground by vibrating or driving them in. The civil engineering machines are used in particular to carry out foundation measures for buildings or along buildings.

In certain cases it is necessary to carry out such foundation measures near or along railway tracks. For this it is, for example, from the generic EP 0 392 310 B1 known to equip an undercarriage with rail wheels in a conventional civil engineering machine, which allow driving on rails. As a result, the civil engineering machine equipped and retrofitted in this way can be moved on railroad tracks in order to carry out corresponding civil engineering measures from a working position on the tracks.

With such retrofitted civil engineering machines only relatively short distances can be covered on tracks as a rule. In addition, due to the relatively small track width on rails compared to a normal wheeled or caterpillar undercarriage reduced tipping safety.

It is also known to arrange an existing civil engineering machine with a wheeled or caterpillar undercarriage as a whole on a railway transport vehicle. In principle, a longer distance can be covered on rails at a higher speed with such a conventional railroad car. However, with such arrangements in conventional civil engineering machines, there is the problem that a maximum overall height, which is specified by overhead lines or railway tunnels, must not be exceeded for rail transport. Thus, only relatively small civil engineering machines can be accommodated on railway transport wagons. In addition, by arranging a conventional civil engineering machine on a railway transport wagon, the center of gravity of the machine is increased above the ground, which also reduces the stability against tipping. This results in a corresponding restriction of the working area and the possible uses of the civil engineering machine.

The invention is based on the object of specifying a civil engineering machine with which construction work can be carried out along railroad tracks in a particularly efficient manner.

The object is achieved by a civil engineering machine with the features of claim 1. Preferred embodiments of the invention are given in the dependent claims.

The civil engineering machine according to the invention is characterized in that the drive unit is arranged in the track-bound undercarriage.

A basic idea of the invention can be seen in forming a civil engineering machine in which the upper carriage is designed to be integrated with the construction equipment with a rail-bound undercarriage, with the drive unit being arranged in the rail-bound undercarriage. In contrast to conventional civil engineering machines, the drive unit is not located in the superstructure. A drive unit within the meaning of the invention is to be understood in particular as an internal combustion engine or an electric motor, which is used to drive actuators on the superstructure, such as actuating cylinders, motors and the like. In particular, can the drive unit has at least one hydraulic pump, which is arranged together with the at least one drive motor in the rail-bound undercarriage. The actuators can preferably include hydraulic components, in particular hydraulic cylinders and hydraulic rotary drives. With a relatively low weight, these can apply large forces or torques.

By arranging the drive unit in the rail-bound undercarriage, a particularly compact superstructure can be formed, which is particularly advantageous for rail transport with the associated height restrictions. At the same time, the center of gravity of the entire device is shifted down to the ground, which improves the tipping safety of the entire device.

A preferred embodiment of the civil engineering machine according to the invention consists in that the track-bound undercarriage has a length in a longitudinal direction which is significantly greater, in particular at least twice as great as a length of the superstructure. The dimensions of the undercarriage can be designed independently of the superstructure. Due to the significantly greater length of the undercarriage, there is sufficient installation space in the undercarriage to accommodate the drive unit with the various components. A rotary bearing, with which the upper carriage is rotatably mounted on the undercarriage, can thus be arranged very low. This promotes the compact arrangement and further improves the stability of the overall arrangement against tipping. Although there are strict dimensional restrictions with regard to width and height for a track-bound civil engineering machine, considerably greater lengths can be provided compared to construction machines with road traffic approval, preferably between 10 meters and 20 meters or more. In addition, extendable support feet can be arranged on the undercarriage, which can be extended laterally during construction in order to increase the tipping stability.

In principle, the civil engineering machine with the track-bound undercarriage can be designed as a passive car that can be moved along the track by means of a separate traction engine, in particular a locomotive. According to a development of the invention, it is particularly advantageous that the rail-bound undercarriage has a travel drive for automatic travel on the railroad tracks includes. In this way, as an alternative or in addition to moving by means of a traction machine, automatic moving of the civil engineering machine can be achieved. For this purpose, a travel drive, in particular with an internal combustion engine or an electric motor, can be provided on the undercarriage. It is also possible to drive the travel drive with the drive unit for the civil engineering machine. Only one internal combustion engine or electric motor is then required overall.

In principle, the drive can be controlled from a separate control panel on the track-bound undercarriage. According to a development of the invention, it is alternatively or additionally provided that an operator's cabin is arranged on the superstructure, via which both the construction work device and a travel drive of the rail-bound undercarriage can be actuated. This allows efficient central operation.

In principle, the leader can be adjustably articulated on the superstructure via any desired articulation mechanism. The leader can be placed in a transport position on the superstructure. According to one embodiment of the invention, it is particularly advantageous that the leader is pivoted to the superstructure via a linkage mechanism, the leader being pivotable from a substantially vertical operating position into a substantially horizontal transport position, which is longitudinally in front of the superstructure. As a result, a transport position can be achieved with an overall height of the civil engineering machine in which the leader pivoted into the horizontal position does not increase the overall height compared to the superstructure, or at most slightly. In particular, the linkage mechanism can have a number of horizontal pivot axes, so that the leader can assume a vertical operating position or an operating position with a certain angle of inclination thereto.

Furthermore, the leader can be articulated on the articulation mechanism via at least one vertical swivel joint in the operating position, so that a lateral pivoting of the leader relative to a carrier of the articulation mechanism is also possible. The leader can be designed as a telescopic leader, which allows a further upward adjustment of the leader in the operating position. The linkage mechanism can also include a telescopic arm so that a working radius can be increased.

A preferred further development of the invention is that the leader is placed in the transport position on a shelf which is formed on the track-bound undercarriage and/or a track-bound additional carriage which is articulated to the undercarriage. The rail-bound undercarriage can be designed with two wheel sets or preferably four wheel sets. With a compact design, the leader can be placed in its entirety on the rail-bound undercarriage for transport, on which the superstructure is also arranged.

The upper carriage is preferably mounted approximately in the middle of the track-bound undercarriage, so that the leader can be placed in the transport position on a track-bound additional carriage which is coupled in front of or behind the track-bound undercarriage of the civil engineering machine. For transport, the leader and/or the construction work equipment can be separated from the superstructure. In principle, the leader can also be brought into an approximately horizontal position for transport, in which the leader projects beyond the track-bound undercarriage and is held by the linkage mechanism on the superstructure.

In general, any suitable device can be attached to the civil engineering machine as construction work equipment. According to one embodiment variant of the invention, it is particularly advantageous for the construction equipment to have a vibrator, a drilling drive, a piling device, a sheet pile press or a cutter on the working carriage. The piling device can in particular comprise an impact or hammer unit.

With a drilling drive, a drilling device can be created with which in particular bored piles or foundation piles can be created in the ground, with a drilled hole being filled with a preferably hardening mass, in particular concrete. The drill can also be used to insert drill or screw anchors for foundation measures. Vertical slits can be created in the ground using a cutter, which, after being filled with a hardenable mass, form diaphragm wall segments or connected diaphragm walls in the ground. Pile-like or plank-like foundation elements can be driven into the ground using a vibrator, a piling device or a sheet pile press.

Fig. 1

eine Seitenansicht einer ersten erfindungsgemäßen Tiefbaumaschine;

Fig. 2

eine vergrößerte Detailansicht zu der Tiefbaumaschine von Fig. 1 mit verschwenktem Oberwagen;

Fig. 3

eine schematische Draufsicht auf eine erfindungsgemäße Tiefbaumaschine;

Fig. 4

eine Seitenansicht der erfindungsgemäßen Tiefbaumaschine nach Fig. 1 in einer ersten Transportposition;

Fig. 5

eine Seitenansicht einer weiteren erfindungsgemäßen Tiefbaumaschine mit einem Rüttler in einer Transportposition entsprechend Fig. 4;

Fig. 6

eine Seitenansicht einer weiteren erfindungsgemäßen Tiefbaumaschine mit einem Rammgerät in einer Transportposition entsprechend den Figuren 4 und 5;

Fig. 7

eine Seitenansicht einer weiteren erfindungsgemäßen Tiefbaumaschine mit einer Spundwandbohlenpresse in einer Transportposition entsprechend den Figuren 4 bis 6;

Fig. 8

eine weitere Ausführungsform einer erfindungsgemäßen Tiefbaumaschine in einem Transportzustand mit einem Zusatzwagen; und

Fig. 9

eine Draufsicht auf die Tiefbaumaschine nach Fig. 8.

The invention is described in more detail below with reference to preferred exemplary embodiments, which are shown schematically in the drawings. In the drawings show:

1

a side view of a first civil engineering machine according to the invention;

2

an enlarged detailed view of the civil engineering machine from 1 with pivoted superstructure;

3

a schematic plan view of a civil engineering machine according to the invention;

4

a side view of the civil engineering machine according to the invention 1 in a first transport position;

figure 5

a side view of another civil engineering machine according to the invention with a vibrator in a transport position 4 ;

6

a side view of another civil engineering machine according to the invention with a piling device in a transport position according to Figures 4 and 5;

7

a side view of another civil engineering machine according to the invention with a sheet pile press in a transport position according to the Figures 4 to 6 ;

8

a further embodiment of a civil engineering machine according to the invention in a transport state with an additional car; and

9

a plan view of the civil engineering machine 8 .

A first civil engineering machine 10 according to the invention is associated with the figures 1 and 2 explained. For moving on railway tracks 6, the civil engineering machine 10 includes a track-bound undercarriage 20 with a flat support frame 22 with chassis 21, at the ends of which a bogie 24 with four wheelsets 25 with rail wheels 26 are arranged. The undercarriage 20 can have a length of about 12 to 18 meters, preferably about 15 meters.

An upper carriage 30 with an operator's cab 32 is mounted approximately centrally on the undercarriage 20 so as to be rotatable about a vertical axis of rotation 31 . A length-adjustable telescopic arm 42 is mounted on the superstructure 30 so as to be pivotable about a horizontal pivot axis 43 and can be pivoted about the horizontal pivot axis 43 by means of at least one actuating cylinder 38 . Two adjusting cylinders 38 can preferably be provided. The telescopic arm 42 is part of a linkage mechanism 40, a holding device 46 for holding a leader 50 being arranged at the free end of the telescopic arm 42 via a detachable connection unit 45. The holding device 46 can by means of a tilt cylinder 47 between the in the figures 1 and 2 shown, are pivoted substantially vertical operating position and a substantially horizontal transport position.

In addition, a pivoting unit 48 is arranged on the holding device 46, with which a vertical adjusting unit 49 with the leader 50 by an in 1 vertical pivot axis can be pivoted. The leader 50 can be adjusted in the vertical direction or in the longitudinal direction of the leader 50 by means of the vertical adjusting unit 49 via the vertical support 52 .

That in the figures 1 and 2 The drive assembly, not shown, for driving the civil engineering machine 10 is arranged essentially in a receiving space 23 on the support frame 22 of the undercarriage 20 . The drive unit serves both as a travel drive for the undercarriage 20 for automatic movement, for adjusting the superstructure 30 and the linkage mechanism 40 and for operating a construction device 70 on the leader 50.

According to the figures 1 and 2 a linear guide 54 is formed on a front side of the vertical support 52 of the leader 50, along which a working carriage 60 with the construction work device 70 is mounted in a vertically adjustable manner. In the illustrated embodiment, the construction tool 70 is designed to create a bore. For this purpose, a drilling drive 72 is attached to the working carriage 60 . A Kelly boring bar 71 suspended from the leader 50 via a cable is driven in rotation by the boring drive 72 . At the lower end of the Kelly boring bar 71, a boring tool 73 is releasably attached.

To carry out a construction measure along the railway tracks 6, the construction work device 70 with the superstructure 30 is pivoted outwards about the vertical axis of rotation 31, generally by about 30° to 60°, in individual cases up to a maximum of 90°, as schematically shown in 2 is shown. To ensure the tipping stability of the civil engineering machine 10, lateral support devices 27 with a laterally pivotable swivel support 28 are arranged on the undercarriage 20. Vertically extendable supports 29 are arranged at the free end of the pivoting support 28 . As a result, the vertical supports 29 can be supported on the ground or on support elements 8 that have been prepared. In addition, an optionally hydraulically extendable support foot 58 can be arranged at the lower end of the vertical support 52 of the leader 50, with which the leader can be supported directly on the ground.

In 3 is a possible working range or adjustment range of the civil engineering machine 10 according to FIG figures 1 and 2 shown. The hatched working area has an inner radius R1 at which the telescopic arm 42 of the linkage mechanism 40 is retracted. Furthermore, the working area is limited by the outer radius R2, at which the telescopic arm 42 is extended as far as permissible.

Depending on the respective travel position of the civil engineering machine 10 along the railroad tracks 6, the rotary position of the superstructure 30 about the vertical axis of rotation 31 and the extended position of the telescopic arm 42, a working area can be reliably processed along the tracks with a distance within the outer radius R1. If the leader 50 is supported on the ground with the support foot 58, the working range is extended up to the maximum outer radius R2.

In 4 is a first transport position of the civil engineering machine 10 according to FIG figures 1 and 2 shown. For the transport position, the superstructure 30 is aligned longitudinally to the undercarriage 20. The telescopic arm 42 of the linkage mechanism 40 is extended axially. At the same time, the tilting cylinder 47 is extended, so that the leader 50 is arranged approximately horizontally with a certain tilting angle relative to the horizontal. In this transport position, the leader 50 is thus essentially in a horizontal position in front of the actual undercarriage 20. If necessary, a mast head 56 on the leader 50 can be folded in by means of a folding cylinder 57, in order to reduce the overall height H of the track-bound civil engineering machine 10 to further reduce in the transport position, so that a maximum permissible height for rail transport is given. The first transport position can also be referred to as the shifting position, since this is essentially intended for shifting the device at low speed and over short distances.

In figure 5 is another civil engineering machine 10 according to the invention in the transport position 4 shown, with a vibrator 74 being adjustably mounted on the leader 50 as construction equipment 70 . The vibrator 74 has, in particular, imbalances that can be driven in rotation, with which specific vibrations can be generated, for example for driving sheet piles into a floor.

In 6 is another civil engineering machine 10 according to the invention in the transport position according to the Figures 4 and 5 shown, wherein the construction implement 70 comprises a piling device 76 . With the piling device 76, targeted impact impulses can be exerted to drive beams or piles into the ground.

According to 7 is another civil engineering machine 10 according to the invention in the transport position according to the Figures 4 to 6 shown, with a sheet pile press 78 for pressing sheet piles into the ground being attached to the leader 50 as a construction work tool 70 .

According to the Figures 8 and 9 a civil engineering machine 10 according to the invention is shown in another second transport position, which is particularly suitable for covering larger distances. For this purpose, the civil engineering machine 10 with the rail-bound undercarriage 20 has an additional carriage 80 which can be detachably coupled to the undercarriage 20 . An upper side of the additional carriage 80 is designed as a shelf 82 for the leader 50 . A process can take place automatically or preferably in a train set, for example with a locomotive.

To set it down, the leader 50 is brought into a substantially horizontal position via the linkage mechanism 40 on the superstructure 30 and is laid down immediately or preferably after being pivoted through 90° onto the shelf 82 of the additional carriage 80 . Pivoting through 90° preferably takes place with a vertical detent. The connection unit 45 between the telescopic arm 42 and the holding device 46 of the linkage mechanism 40 can then be released. Now the telescopic arm 42 can be retracted again. Optional or supplementary the stored leader 50 on the additional carriage 80 can be moved laterally and/or in the direction of the track in order to bring the center of gravity of the unit consisting of leader 50 and working carriage 60 as close as possible to the center of the additional carriage 80. The masthead 56 can be folded down in order to avoid protruding laterally beyond the width of the additional carriage 80. Line connections 66 can remain between the telescopic arm 42 on the upper carriage 30 and the leader 50 placed on the additional carriage 80 . The line connections can be power and/or data lines. This enables the leader 50 to be reconnected almost automatically to the superstructure when another construction site is reached by extending the telescopic arm 42 and closing the connection unit 45 without having to reconnect the line connections 66 before starting work.

The in the Figures 1 to 9 The civil engineering machines 10 shown have essentially the same structure, which differs significantly in the type of construction equipment 70 used.

Claims (7)

civil engineering machine with - a rail-bound undercarriage (20) which has a chassis (21) with wheels (25) for driving on railway tracks (6), - an upper carriage (30) rotatably mounted on the undercarriage (20) about a vertical axis of rotation, - A leader (50) mounted on the superstructure (30) with a linear guide (54) along which a working carriage (60) with a construction work device (70) is mounted so that it can be moved, and - A drive unit for operating the civil engineering machine (10),
characterized, - That the drive unit is arranged in the track-bound undercarriage (20). Civil engineering machine according to claim 1,
characterized,
that the track-bound undercarriage (20) has a length in a longitudinal direction which is significantly greater, in particular at least twice as great as a length of the superstructure (30). Civil engineering machine according to claim 1 or 2,
characterized,
that the rail-bound undercarriage (20) comprises a travel drive for automatic travel on the railroad tracks (6). Civil engineering machine according to one of claims 1 to 3,
characterized,
that an operator's cabin (32) is arranged on the superstructure (30), via which both the construction equipment (70) and a travel drive of the rail-bound undercarriage (20) can be actuated. Civil engineering machine according to one of claims 1 to 4,
characterized,
that the leader (50) is pivoted to the superstructure (30) via a linkage mechanism (40), wherein the leader (50) can be pivoted from a substantially vertical operating position into a substantially horizontal transport position, which is longitudinally in front of the superstructure (30) is located. Civil engineering machine according to claim 5,
characterized,
that the leader (50) is placed in the transport position on a shelf (82) which is formed on the track-bound undercarriage (20) and/or a track-bound additional carriage (80) which is articulated and/or detachable with the undercarriage (20) is coupled. Civil engineering machine according to one of claims 1 to 6,
characterized,
that the construction equipment (70) on the working carriage (60) has a vibrator (74), a drilling drive (72), a piling device (76), a sheet pile press (78) or a milling machine.

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