EP4124693A1 - Machine for use in civil engineering - Google Patents

Abstract

The invention relates to a civil engineering machine (10) with a mobile carrier device (12), a leader (50) with a linear guide (54) along which a working carriage (60) for a construction work device (70) is movably mounted, a linkage mechanism (40) , with which the leader (50) is mounted on the carrier device (12) so that it can be adjusted between an essentially vertical working position and an essentially horizontal transport position, and at least one traveling trailing line (80), which is connected on the one hand to the movable working carriage (60) and on the other hand is connected to the carrier device (12) or the leader (50).

According to the invention, at least one support device (90), which can be extended between a retracted position and a support position, is provided on the leader (50) for the at least one trailing line (80), and that the at least one trailing line (80) is in the transport position of the leader (50) is held by the support device (90) in the extended support position.

Description

The invention relates to a civil engineering machine with a mobile carrier device, a leader with a linear guide along which a working carriage with a construction device is movably mounted, a linkage mechanism with which the leader on the carrier device can be adjusted between a substantially vertical working position and a substantially horizontal transport - or moving position, and at least one moving trailing cable, which is connected on the one hand to the movable working carriage and on the other hand to the carrier device or the leader, according to the preamble of claim 1.

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

A leader is a substantially vertical mast which is formed with a longitudinal guide along its front. A working carriage with a construction work tool is slidably mounted along the longitudinal guide. The construction equipment can have, for example, a drill drive or a vibrator, which are usually supplied with hydraulic energy or electrical energy.

A corresponding line is provided for the energy supply, which on the one hand is arranged at a fixed point on the leader or the carrier device and on the other hand is connected to the movable working device carriage. The energy line is designed as a traveling trailing line, so that this is a travel path of the implement carriage along the leader between can follow an upper end position and a lower end position on the vertically directed leader.

If the leader is shifted from its essentially vertical operating position to an essentially horizontal transport position, care must be taken to ensure that the sagging trailing cable does not result in crushing or damage. It is known to use lashing straps or lashing straps with which the trailing cable is additionally fixed along the leader in order to avoid damage.

In the case of longer transports, it is also customary to dismantle a trailing cable as a whole, which involves a corresponding amount of work for dismantling and assembly.

The invention is based on the object of specifying a civil engineering machine which ensures efficient and safe operation even when a leader is moved.

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 at least one support device is provided on the leader for the at least one trailing line, which can be adjusted between a retracted position and a support position, and that the at least one trailing line in the transport position of the leader from the support device in the extended support position is held.

A basic idea of the invention is to provide a support device for turning over a leader, by means of which a trailing cable can be supported in a substantially horizontal transport position and can thus be held in a desired position. As a result, undesired severe sagging of the trailing cable in the horizontal transport position can be avoided or reduced to a considerable extent. This reduces the risk of crushing or damage counteracted the trailing cable when turning the leader and also when setting it up again.

Another aspect of the invention is that the support device can be moved between a retracted position and a support position. In a vertical operating position of the mast, the support device can be retracted into a retracted position, so that it is not disruptive when the leader is working and in particular does not impede the path of the trailing cable. If the leader is shifted from its operating position into a substantially horizontal transport position, the support device can be extended into the desired support position.

In principle, the support device can be configured in a variety of ways. According to a further development, it is particularly advantageous that the support device bears against the leader in the retracted retracted position and protrudes from the leader in the extended support position to form a support for the at least one trailing line. The support device can extend at least partially along the leader and, in the retracted position, can be in contact with it or at a certain distance from it. In the support position, the support device can protrude from the leader, in particular in a transverse direction, and form a support or several support points for the trailing line.

In principle, the support device can be extended and retracted manually. According to one embodiment of the invention, it is particularly advantageous that at least one drive is provided for extending the support device. The drive can in particular be a linear drive, in particular an actuating cylinder. The actuating cylinder is preferably operated hydraulically. In a preferred manner, the drive can extend the support device and retract it again into the retracted position. Two or more drives are preferably arranged for a force distribution that is as uniform as possible. Automatic extension means that manual work on the leader can be avoided, which increases work safety.

According to one embodiment variant of the invention, it is particularly advantageous that the leader is located in the longitudinal direction in front of the carrier device in the essentially horizontal transport position. Front refers to the side of the carrier device which the leader is articulated on the superstructure, with the superstructure and undercarriage being in a neutral position in relation to one another. The leader laid down from a front side of the carrier device thus extends forward away from the carrier device. With such a transport position, there is a risk that a sagging trailing cable will come into contact with the ground, as a result of which there is an increased risk of damage to the trailing cable. The use of the support device according to the invention to avoid crushing or damage to the hose line can also be useful when the leader is turned backwards onto the carrier device.

According to a development of the invention, it is particularly expedient for the carrier device to have an undercarriage and an uppercarriage which is rotatably mounted on the undercarriage. Supporting and fixing a trailing cable on the leader is particularly useful when there is an increased degree of adjustment options. If the leader is in the folded travel position, the upper carriage is in the same direction as the undercarriage in the neutral position.

It is particularly advantageous that the undercarriage is designed as a rail-bound undercarriage with a chassis with wheels for driving on railroad tracks. Such a civil engineering machine with a track-bound undercarriage is useful for work along railroad tracks. In particular, when carrying out construction work along railway tracks with such a civil engineering machine, shorter travel distances along the tracks often have to be covered, and due to work restrictions along railway tracks, it may also be necessary to move the mast frequently into a substantially horizontal transport or travel position.

In order to achieve the lowest possible machine height in the travel position, the leader can preferably be folded forward in front of the undercarriage.

In principle, the trailing line can have any configuration. According to one embodiment of the invention, it is particularly advantageous that the at least one trailing line comprises a hydraulic line, a compressed air line, a power line and/or a data line. It can be a single line or a Combination of several identical or different lines can be provided.

In particular, it is expedient according to one embodiment of the invention that the at least one trailing line is designed as a bundle of hoses or a cable band.

In the simplest case, the support device can consist of individual extendable struts. According to a further development of the invention, it is particularly expedient for the support device to comprise a linkage which is mounted in a foldable manner along the leader. The support device can assume a particularly compact shape in the retracted position and form a larger support area for the trailing cable in the extended or folded out position.

To form the civil engineering machine, it is also expedient for the construction equipment to have a vibrator, a drilling drive, a ram, a sheet pile press or a cutter on the working carriage. Such construction equipment is preferably supplied with hydraulic fluid or with electricity.

The mode of operation of the construction machine according to the invention can be further improved by providing a control device for extending the support device depending on a position of the working carriage on the leader. In this way, in particular, an undesired collision between the hose line or the implement carriage with the support device can be counteracted. The control device can also retract the support device.

It is particularly advantageous that a detection device for detecting the position of the working carriage is provided on the leader and that the detection device is connected to the control device. The control device is preferably provided with a program logic, which can be used to ensure that the mast is not folded over until the working carriage is correctly positioned on the leader and the support device is in an extended state. The control device can also be designed in such a way that after the leader has been set up in the essentially vertical operating position, a movement of the working carriage with the trailing cable can only be carried out when the support device has been retracted into the retracted position.

Fig. 1

eine Seitenansicht einer erfindungsgemäßen Tiefbaumaschine;

Fig. 2

eine vergrößerte Detail-Seitenansicht des Mäklers zu der Tiefbaumaschine von Fig. 1 in Arbeitsposition;

Fig. 3

eine Rückansicht auf den Mäkler von Fig. 2;

Fig. 4

eine perspektivische Ansicht auf den Mäkler von Fig. 2;

Fig. 5

eine vergrößerte Detailansicht zum Mäkler von Fig. 4;

Fig. 6

eine Seitenansicht des Mäklers beim Ausfahren der Stützeinrichtung;

Fig. 7

eine Rückansicht auf den Mäkler von Fig. 6;

Fig. 8

eine perspektivische Ansicht des Mäklers zu der Tiefbaumaschine von Fig. 2 in horizontaler Verfahrposition;

Fig. 9

eine Detailansicht zu dem Mäkler nach Fig. 8;

Fig. 10

eine vergrößerte Detailansicht einer Stützeinrichtung in Rückzugsposition; und

Fig. 11

eine vergrößerte Detailansicht einer Stützeinrichtung in Stützposition

The invention is explained in more detail below on the basis of preferred exemplary embodiments, which are shown schematically in the drawings. In the drawings show:

1

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

2

an enlarged detailed side view of the leader to the civil engineering machine from 1 in working position;

3

a rear view of the broker from 2 ;

4

a perspective view of the broker from 2 ;

figure 5

an enlarged detailed view of the leader from 4 ;

6

a side view of the leader when extending the support device;

7

a rear view of the broker from 6 ;

8

a perspective view of the leader to the civil engineering machine of 2 in horizontal travel position;

9

a detailed view of the leader 8 ;

10

an enlarged detailed view of a support device in the retracted position; and

11

an enlarged detailed view of a support device in the support position

An example of a civil engineering machine 10 according to the invention is given in connection with FIG figure 1 explained. For moving on railway tracks 6, the civil engineering machine 10 includes a track-bound undercarriage 20 with a flat supporting frame 22 with a 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. Each wheelset 25 has two wheels. The bogie 24 is rotatably mounted on the support frame 22 about a vertical axis.

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 shown, are pivoted substantially vertical operating position and a substantially horizontal displacement 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 .

This in figure 1 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 figure 1 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 can be pivoted outwards about the vertical axis of rotation 31, generally by about 30° to 60°, in individual cases up to a maximum of 90°. 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 prepared support elements. 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 50 can be supported directly on the ground.

The carrier device 12 can also be designed in a known manner as a standard carrier device with a crawler chassis.

In the Figures 2 to 5 the leader 50 is shown in more detail with a trailing line 80 in a vertical operating position of the leader 50 . The working carriage 60 is movably mounted along the linear guide 54 on a front side of the leader 50 . The working carriage 60 is driven in a displaceable manner via feed cables (not shown) and basically carries the construction work device 70 (not shown here), which is used in the embodiment according to FIG 1 is designed as a drilling drive 72 . Power is supplied to the moveable working carriage 60 via a hose-like trailing line 80 which is connected to a connection plate 62 on the working implement carriage 60 on the one hand and to a feed device 51 in a central region of the leader 50 on the other.

In order to follow a displacement movement of the working carriage 60 along the leader 50, the trailing line 80 has an arcuate loop 82 in its lower region in a manner which is fundamentally known. The energy can be supplied from the leader 50 via the telescopic arm 42, the articulation mechanism 40 with corresponding lines to the feed device for the hose line 80. In a lower area of leader 50, as in figure 5 shown, a support device 90 is arranged, which according to the illustration figure 5 is in its retracted position snugly against leader 50. In this position, the support device 90 does not impede the trailing cable 80, so that it is particularly free along next to the leader 50 the implement slide 60 can be tracked. The support device 90 has two actuating cylinders 97 as drives 96 for adjusting the support device 90 .

In order to adjust the support device 90 , the implement carriage 60 with the attached trailing line 80 is moved into a lower position on the leader 50 . Subsequently, leader 50 is tilted backwards from its vertical working position to a tilted position which is about 2 to 10 degrees from the vertical, as can be clearly seen from FIGS Figures 6 and 7 emerges. In this way, in the region of the loop 82 of the trailing cable 80, an increased free space is created for retracting the support device 90. In this inclined position, the support device 90 can now be moved out of its retracted position on the leader 50 via the actuating cylinder 97 into a support position. In this support position, the support device 90 protrudes into the loop area of the trailing cable 80 .

Subsequently, the leader 50 is transferred from its essentially vertical operating position into an essentially horizontal displacement position, which can be clearly seen in FIGS Figures 8 and 9 is shown. In the present exemplary embodiment, leader 50 is tilted forward so that the side with working carriage 60 points downward toward the ground.

Due to the weight of the trailing cable 80, it comes to rest on the extended support device 90, as in FIGS Figures 8 and 9 is shown. This achieves an orderly placement of the trailing line 80 in the essentially horizontal travel position of the leader 50 . In particular, it is prevented that the trailing line 80 with the sensitive lines, in particular hydraulic lines and power and data lines, sags downwards and thus comes into contact with the ground. This could result in damage to the trailing line 80 when the civil engineering machine 10 is moved with the leader 50 folded over.

In the Figures 10 and 11 the support device 90 is shown in more detail. The support device has a linkage 92 with two transverse struts 93 which are each articulated pivotably on a base plate 91 . At the other end of the transverse struts 93, a longitudinal strut 94 is articulated.

An actuating cylinder 97 for actuating the support device 90 is articulated on each of the base plates 91 . An extendable end of each actuating cylinder 97 is connected via a linkage lever 95 to the associated cross brace 93 in such a way that, by means of the actuating cylinder 97, the linkage 92 of the support device 90 can be moved from the folded retracted position in accordance with 10 by retracting the actuating cylinders 97 into the unfolded support position according to FIG 11 can be adjusted. In the support position according to 11 the cross braces 93 protrude approximately at right angles from the base plates 91, the cross braces 93 together forming a support for the hose line 80. In the support position, the support device 90 is preferably aligned in such a way that the longitudinal strut 94 is arranged higher than the joint between the base plate 91 and the cross struts 93 when the leader is horizontal. The cross struts 93 do not run parallel to the ground, but are inclined upwards away from the leader. This ensures that the trailing cable 80 always slips in the direction of the leader as it moves due to its own weight and is thus reliably held on the support device 90 .

Claims (12)

civil engineering machine with - a mobile carrier device (12), - a leader (50) with a linear guide (54) along which a working carriage (60) for a construction work device (70) is movably mounted, - A linkage mechanism (40) with which the leader (50) is mounted on the carrier device (12) so that it can be adjusted between a substantially vertical working position and a substantially horizontal transport position, and - at least one trailing cable (80) which is connected on the one hand to the movable working carriage (60) and on the other hand to the carrier device (12) or the leader (50), characterized, - that at least one support device (90) is provided on the leader (50) for the at least one trailing line (80), which can be adjusted between a retracted position and a support position, and - that the at least one trailing line (80) is held in the transport position of the leader (50) by the support device (90) in the extended support position. Civil engineering machine according to claim 1,
characterized,
that the support device (90) rests against the leader (50) in the retracted retracted position and protrudes from the leader (50) in the extended support position to form a support for the at least one trailing line (80). Civil engineering machine according to one of claims 1 or 2,
characterized,
that at least one drive (96) is provided for extending the support device (90). Civil engineering machine according to one of claims 1 to 3,
characterized,
that the leader (50) is in the substantially horizontal transport position in the longitudinal direction in front of the carrier device (12). Civil engineering machine according to one of claims 1 to 4,
characterized,
that the carrier device (12) has an undercarriage (20) and an upper carriage (30) which is rotatably mounted on the undercarriage (20). Civil engineering machine according to claim 5,
characterized,
that the undercarriage (20) is designed as a rail-bound undercarriage (20) with a chassis (21) with wheels for driving on railroad tracks (6). Civil engineering machine according to one of claims 1 to 6,
characterized,
that the at least one trailing line (80) comprises a hydraulic line, a compressed air line, a power line and/or a data line. Civil engineering machine according to one of claims 1 to 7,
characterized,
that the at least one trailing line (80) is designed as a line bundle or line band. Civil engineering machine according to one of claims 1 to 8,
characterized,
that the support device (90) comprises a linkage (92) which is mounted in a foldable manner along the leader (50). Civil engineering machine according to one of claims 1 to 9,
characterized,
that the construction equipment (70) on the working carriage (60) has a vibrator, a drill drive (72), a ram, a sheet pile press or a cutter. Civil engineering machine according to one of Claims 1 to 10,
characterized,
that a control device for extending the support device (90) depending on a position of the working carriage (60) is provided on the leader (50). Civil engineering machine according to claim 11,
characterized,
that a detection device for detecting the position of the working carriage (60) is provided on the leader (50) and that the detection device is connected to the control device.

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