EP0669278B1 - Crane, especially mobile rail-crane - Google Patents

Abstract

The mobile crane has a turning device (5) for raising and lowering loads, mounted on a vehicle frame. The turning device consists of at least two turning base columns (9,10) in the two end regions of the vehicle frame, on or equidistant from the longitudinal central axis of the frame and fixed to the frame. The columns can turn through 360 deg. A turning arm (11) consisting of at least two pivoted parts is fitted to the columns. The crane has at least one longitudinal guide carrier (14) for crabs (15) on the vehicle frame. The carriers have crabs on both sides of the cross section. The arm has a grip device (12) for the carriers.

Description

The invention relates to a crane, in particular a track-bound Mobile crane, with one arranged on a vehicle frame Swivel device for a load to be picked up and put down again.

It is known to use cranes of the mobile type (street cranes or track-bound cranes) in such a way that the superstructure is in the middle or is almost centered on the undercarriage, with different Drive units, such as diesel engine, hydraulic pump, on the rotatable Superstructure are arranged (DE-OS 32 27 157).

However, such cranes can only be used to a limited extent for work that be determined by the superstructure. For example, the superstructure with one telescopic boom equipped, but its reach through the center of gravity of the entire vehicle is determined. It is therefore not possible, especially long loads on the one hand and on the other loads that are smaller in size but short and heavy transport.

The invention specified in claim 1 is based on the problem to create a crane, especially a mobile crane, that is universal for a large number of jobs, different lengths of load and different load sizes can be used. The focus is on the functions necessary for track and bridge construction work to judge.

The task is given in the crane mentioned at the beginning solved according to the invention in that the pivoting device from at least two in the two vehicle frame end areas in the middle or in the same Distances off-center to the vehicle frame's central longitudinal axis attached to the vehicle frame, pivotable through 360 degrees Basic swivel columns exist and that each have at least two parts articulated swivel arm is mounted on the basic swivel column. Such a Crane is particularly suitable for long and heavy loads, such as these occur in track or bridge construction.

In an embodiment of the invention it is provided that in addition to the eccentric basic swivel columns at least one in the longitudinal direction extending guide bracket for trolleys on the vehicle frame is supported. On the one hand, the crane serves as Transport vehicle, and on the other hand, the leader hires another element to later transport long and heavy loads to be able to.

The guide carrier is advantageously on both cross-sectional sides equipped with trolleys. This makes it possible to be long and heavy Components or loads symmetrically on the underside of the guide beam hang up and carry.

In a further development of the invention it is provided that on the swivel arms one gripping piece each for gripping and holding the guide support is rotatably attached. The one located on the guide bracket Load can therefore be arbitrarily over the swivel arms one or the other other side of the crane, i.e. recorded and again be dropped off; be discontinued; be deducted; be dismissed.

Further advantages result from the fact that the basic pivoting columns are adjustable in height. This height adjustability is practiced Dual function by placing both the guide bracket and the load in the height can be adjusted.

In an embodiment of the invention it is also provided that the Basic swivel columns each on a rotating platform on the Vehicle frames are stored. This measure is used to stop Swivel angles in the horizontal, so that the guide beam not only parallel to the direction of travel of the crane, but also obliquely in the sense of a Curve shape can be adjusted.

The invention is further improved in that for the transport of the Crane two guide beams one above the other on the vehicle frame are stacked and that the two guide beams in the event of use the swivel devices arranged one behind the other are connectable. This will maximize the length of the Load suspension device achieved.

For shifting the center of gravity outside the crane support area it is also advantageous that in the region of the pivoting devices in each case Swiveling stamps on both sides of the vehicle frame with arms Support plates are provided.

Furthermore, the work can be supervised or carried out and can be controlled by in each case in the vehicle frame end regions Driver's cab located off-center to the vehicle's longitudinal axis is provided.

It may be advantageous that the two cabs on the same long side of the vehicle frame are arranged.

An advantageous breakdown of what is available on the crane Construction space is also achieved in that between the Swiveling ballast bodies or ballast tanks on the Vehicle frames are provided.

Embodiments of the invention are shown in the drawing and are described in more detail below.

Fig. 1

eine Seitenansicht des Krans im Transportzustand,

Fig. 2

eine Draufsicht auf den Kran gemäß Fig. 1,

Fig. 3

eine Seitenansicht des im Betrieb arbeitenden Krans mit zwei miteinander verbundenen Führungsträgern,

Fig. 4

eine Draufsicht auf den Betriebszustand des Krans gemäß Fig. 3,

Fig. 5

eine Seitenansicht des Krans wahrend der Arbeit, wobei die beiden Führungsträger miteinander nach einer anderen Richtung verbunden sind,

Fig. 6

eine Draufsicht zum Arbeitsbeispiel des Krans gemäß Fig. 5,

Fig. 7

ein weiteres Ausführungsbeispiel des Krans in Seitenansicht unter Höhenverstellung der Schwenkvorrichtungen,

Fig. 8

die zu Fig. 7 gehörende Draufsicht mit einer weiteren beispielhaften Einsatzmöglichkeit des Krans für Kurvenfahrten,

die Fig. 9 bis 16

jeweils eine Vorderansicht für einzelne Arbeitsvorgänge bzw. Transportstellungen.

Show it

Fig. 1

a side view of the crane in transport condition,

Fig. 2

2 shows a top view of the crane according to FIG. 1,

Fig. 3

a side view of the crane working in operation with two interconnected guide beams,

Fig. 4

3 shows a top view of the operating state of the crane according to FIG. 3,

Fig. 5

a side view of the crane during work, the two guide beams are connected to each other in a different direction,

Fig. 6

5 shows a top view of the working example of the crane according to FIG. 5,

Fig. 7

another embodiment of the crane in side view with height adjustment of the swivel devices,

Fig. 8

7 is a top view belonging to FIG. 7 with a further possible application of the crane for cornering,

9 to 16

each a front view for individual work processes or transport positions.

The crane, in particular a railroad crane, has a vehicle frame 1 with buffers 1a and 1b and is on 2 pairs of rails Bogies 3 with wheelsets 4 movable (Fig. 1). On the Vehicle frame 1 are pivoting devices 5 for and to be recorded loads to be set down again, e.g. Rail sections 6 (Tracks with sleepers; Figures 3 and 4) with lengths of e.g. 24 m, Switch elements 7 and the like. (Figures 13 and 14), sleepers 8 (Fig. 15).

The swivel device 5 consists of at least two in the two Vehicle frame end regions 1c and 1d either in the middle (FIGS. 3, 5 and 7) or at equal intervals 1e off-center to the central longitudinal axis of the vehicle frame 19 fixed basic pivot columns 9 and 10. Each Basic pivot column 9 and 10 carries an at least two-part articulated swivel arm 11. On the basic swivel columns 9 and 10 are in this case one arm link 11a and one arm link 11b are articulated. The last arm member 11b carries a gripping piece 12 for gripping and holding of a guide carrier 14 extending in the longitudinal direction 13 for several trolleys 15. The guide bracket 14 is initially through Weight on the vehicle frame 1, two guide supports 14 can be stacked on top of each other (Fig. 1). The guide bracket 14 is on two cross-sectional sides 14a and 14b (FIG. 2) with the trolleys 15 fitted. The gripping piece 12 is rotatable on the last arm member 11b attached.

The basic swivel columns 9 and 10 are height adjustable and can e.g. consist of telescopic units. At the same time, these are Basic pivot columns 9 and 10 each on a rotatable platform 16 the vehicle frame 1 rotatably. Figures 1 and 2 show the crane in its transport position, while in the case of Figures 3 and 4, the guide carrier 14 by means of an auxiliary carriage 17 Connection 18 can be arranged one behind the other. Here are the crane (Car) and the auxiliary car 17 coupled together, i.e. the buffers 1a 1b are on top of each other.

In the area of the pivoting devices 5 are on both sides Vehicle frame 1 on arms 20 swiveling stamp 21 with attached Support plates 22 attached.

After connecting the guide carriers 14 in series, they hang in the swivel devices 5 and can therefore (Figures 5 and 6) e.g. pivoted over the track of a pair of rails 2 to be installed in parallel become. For this purpose, the respective rail section 6 hangs on the cable cats or trolleys 15. At this stage, the swivel arms 11 with the Arm members 11a and 11b, to which the gripping pieces 12 are attached, swung out accordingly. All operations are carried out by one in each the vehicle frame end regions 1c and 1d off-center Vehicle frame center longitudinal axis 19 arranged cab 23 controlled from. The two cabs 23 are advantageously each on the same long side 24 (FIGS. 4, 6 and 8) of the vehicle frame 1 arranged. In addition, there are 5 Ballast body or ballast tanks 25 attached to the vehicle frame 1.

For laying rail sections 6 on curves, the Swivel devices 5 individually pivoted on the platform 16, and for Setting angles 26 on inclines and descents Basic pivot columns 9 and 10 individually held or telescoped (Figures 7 and 8).

The crane is particularly suitable for internationally prescribed driving profiles 27 suitable. They are in the transport position (Fig. 9) in particular the driver's cab 23 and stacked guide supports 14 within the driving profile 27. Individual guide beams 14 can be in Transport position also on the swivel devices 5, the Basic pivot columns 9 and 10, the pivot arms 11 with arm members 11a and 11b and on gripping pieces 12 including the trolleys 15 remain (Fig. 10).

Driving profiles 28 different national regulations take in addition to the mentioned modules still sleepers 8 on the trolleys 15 on (figures 11 and 12).

Furthermore, complete switch elements 7 can be used within the driving profile 28 and 29 are worn (Fig. 13 and 14).

For the installation of sleepers 8 (Figures 15 and 16) are on both sides the vehicle frame 1, the arms 20 with the stamps 21 and support plates 22 swung out so that those located above the stamps 21 Swivel devices 5 are fully supported. Here, the full stretched pivoting of the pivot arms 11 and the arm members 11a and 11b can be used.

Reference list

1

Vehicle frame

1a

buffer

1b

buffer

1c

Vehicle frame end area

1d

Vehicle frame end area

1e

distances

2nd

Pair of rails

3rd

bogie

4th

Wheel sets

5

Swivel devices

6

Rail sections

7

Switch element

8th

swell

9

Basic swivel column

10th

Basic swivel column

11

Swivel arm

11a

Arm limb

11b

Arm limb

12th

Gripping piece

13

Longitudinal direction

14

Leadership

14a

Cross-sectional side

14b

Cross-sectional side

15

Trolleys

16

platform

17th

Auxiliary car

18th

connection

19th

Vehicle frame central longitudinal axis

20th

poor

21

stamp

22

Support plate

23

Cab

24th

Long side

25th

Ballast tank

26

angle

27

Driving profile

28

Driving profile

29

Driving profile

Claims (11)

1. A crane, especially a rail-mounted mobile crane, comprising a slewing means, arranged on a vehicle chassis, for a load requiring lifting and setting down again,
   characterised in that
   the slewing means (5) consists of at least two basic slewing columns (9, 10) slewable through 360 degrees and attached to the vehicle chassis (1) in the two vehicle chassis end areas (1a, 1b) centrally with respect to the vehicle chassis central longitudinal axis (19) or off-centre by equal distances (1e) and in that an at least two-component articulated swivelling arm (11) is mounted on each basic slewing column (9, 10).
2. A crane according to claim 1,
   characterised in that
   in addition to the off-centre basic slewing columns (9, 10), at least one guide beam (14), extending in the longitudinal direction (13), for crane trolleys (15) is supported on the vehicle chassis (1).
3. A crane according to claim 2,
   characterised in that
   the guide beam (14) is provided with crane trolleys (15) at both cross-sectional sides (14a, 14b).
4. A crane according to any one of claims 1 to 3,
   characterised in that
   a gripping member (12) is attached to each slewing arm (11) in rotationally adjustable manner for gripping and holding the guide beam (14).
5. A crane according to any one of claims 1 to 4,
   characterised in that
   the basic slewing columns (9, 10) are height-adjustable.
6. A crane according to any one of claims 1 to 5,
   characterised in that
   the basic slewing columns (9, 10) are each mounted on a rotatable platform (16) on the vehicle chassis (1).
7. A crane according to any one of claims 1 to 6,
   characterised in that,
   for transportation of the crane, two guide beams (14) are stacked one on top of the other on the vehicle chassis (1) and in that the two guide beams (14) may be connected together one behind the other when in use by means of the slewing means (5).
8. A crane according to any one of claims 1 to 7,
   characterised in that
   props (21) which comprise support plates (22) and may be swung out on arms (20) are provided in the area of the slewing means (5) on each side of the vehicle chassis (1).
9. A crane according to any one of claims 1 to 8,
   characterised in that
   a driver's cab (23) is arranged in each of the vehicle chassis end areas (1c, 1d) off-centre with respect to the vehicle chassis central longitudinal axis (19).
10. A crane according to claim 8,
    characterised in that
    the two drivers' cabs (23) are arranged on the same longitudinal side (24) of the vehicle chassis (1).
11. A crane according to any one of claims 1 to 10,
    characterised in that
    ballast members or ballast tanks (25) are provided on the vehicle chassis (1) between the slewing means (5).

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