DE102019209334A1 - Modular engine room crane for a watercraft - Google Patents

Abstract

The present invention relates to a system consisting of a watercraft, a modular crane that can be brought into the watercraft and an external crane, the watercraft having a first space (90) arranged inside the watercraft for bringing in the modular crane, the first space (90 ) has an upwardly directed opening, the modular crane having a first cross member (10) and a second cross member (20), the first cross member (10) and the second cross member (20) transversely to the longitudinal direction of the cross members (10, 20) ) are movable in the first space (90), wherein the modular crane has an H-crossbar (30), wherein the H-crossbar (30) can be arranged on the first crossbar (10) and the second crossbar (20), the H-traverse (30) can be moved in the longitudinal direction of the first cross-member (10) and the second cross-member (20), the H-cross member (30) having a lifting device (40) for attaching and lifting a load (60) a The H-traverse (30) has a fastening device on the upper side, the fastening device being designed for fastening the H-traverse (30) to the external crane.

Description

The invention relates to a crane and a method for extracting a part, in particular an engine or gearbox, from a watercraft.

Watercraft, especially military watercraft, are highly integrated so that it is very difficult to replace large components. On the other hand, there is a regular need to be able to replace defective parts in order to restore usability.

If a motor or gearbox has to be replaced, military watercraft often have to open the hull of the watercraft, remove the defective component and insert a new component. The cover must then be closed again and the watertightness restored. This process is extremely complex and takes a very long time, so that the watercraft is not available for a long time.

On the other hand, due to the requirements, there is usually very little space available, so that the removal of large components, for example an engine or a gearbox, is not easy, since the space required for this cannot regularly be kept available during normal operation.

The object of the invention is to create a crane which, if necessary, can be brought into a space, for example a machine room, in order to bring a part, for example an engine, into a position from which this part can be removed from the watercraft. In the normal case, the crane should be largely removable from the watercraft so that the displacement is available as fully as possible for the payload.

This object is achieved by the system with the features specified in claim 1 and by the method with the features specified in claim 8. Advantageous developments result from the subclaims, the following description and the drawings.

The system according to the invention consists of a watercraft, a modular crane that can be introduced into the watercraft and an external crane. Examples of an external crane are, for example, a harbor crane or the crane of another watercraft. The watercraft has a first space, which is arranged inside the watercraft, for introducing the modular crane. The first space has an opening facing upwards. The opening can be a hatch, alternatively the opening can also be created by exposing it in one or more decks. The modular crane has a first cross member and a second cross member, the first cross member and the second cross member being movable transversely to the longitudinal direction of the cross members in the first space. The first cross member and the second cross member are arranged parallel to one another. The first cross member and the second cross member are designed, for example and preferably, as double-T beams. The modular crane has an H-traverse, wherein the H-traverse can be arranged on the first cross-member and the second cross-member. For example and preferably, the first cross member, the second cross member and the H cross member are not firmly connected to one another, but are merely held together by gravity and possibly guide elements. The H-cross member can be moved in the longitudinal direction of the first cross member and the second cross member. Since the first cross member and the second cross member can be moved transversely to the longitudinal direction of the cross members and the H cross member is movable in the longitudinal direction of the cross members, the H cross member can be arranged above any point within the first space. The H-cross beam has a lifting device for attaching and lifting a load. The H-traverse has a fastening device on the upper side, the fastening device being designed for fastening the running body to the external crane.

Due to this modular structure, the modular crane can be brought into the first space comparatively easily if it is required to lift out a load, for example a defective motor or defective gearbox. With the help of the modular crane, the load can simply be brought under the opening and then lifted out of the room together with the H-cross beam by the external crane.

In a further embodiment of the invention, the modular crane has a further H crossbeam. In particular, the H-traverse and the further H-traverse differ in width and are designed to lift different loads. For example, the H-traverse is designed to lift out an engine and the further H-traverse is designed to lift out a gearbox.

In a further embodiment of the invention, the watercraft has at least a first running rail and a second running rail, the first running rail and the second running rail being arranged within the first space. The first running rail and the second running rail are arranged transversely to the longitudinal direction of the first cross member and the second cross member. The Fixed installation of a first running rail and a second running rail is preferred, since the comparatively high forces can be absorbed easily in the watercraft. For example, the first running rail and the second running rail are designed as double T-beams. In the case of structures that are not permanently installed, in particular the first running rail and the second running rail, there is an increased risk of bending of the shaft structure.

In a further alternative embodiment of the invention, at least a first running rail and a second running rail can be introduced into the watercraft, the first running rail and the second running rail being able to be arranged within the first space. The first running rail and the second running rail are arranged transversely to the longitudinal direction of the first cross member and the second cross member. The non-permanent installation of a first running rail and a second running rail is preferred in order to save additional weight. This is also advantageous if the watercraft has a first space and a second space and the first running rail and the second running rail can be brought into both the first space and the second space. For example, the first running rail and the second running rail are designed as double T-beams.

In a further embodiment of the invention, the first cross member has at least one first roller, the first roller being arranged below the first carrier for vertical support on the first running rail. Furthermore, the first cross member has at least one second roller, the second roller being arranged below the first cross member for vertical support on the second running rail. In addition, the first cross member has at least one first pair of stabilizing rollers, the first pair of stabilizing rollers being arranged below the first cross member and on the opposite sides of the first running rail. Furthermore, the first cross member has at least one second pair of stabilizing rollers, the second pair of stabilizing rollers being arranged below the first cross member and on the opposite sides of the second running rail.

In a further embodiment of the invention, the second cross member has at least one first roller, the first roller being arranged below the second cross member for vertical support on the first running rail. Furthermore, the second cross member has at least one second roller, the second roller being arranged below the second cross member for vertical support on the second running rail. In addition, the second cross member has at least one first pair of stabilizing rollers, the first pair of stabilizing rollers being arranged below the second cross member and on the opposite sides of the first running rail. Furthermore, the second cross member has at least one second pair of stabilizing rollers, the second pair of stabilizing rollers being arranged below the second cross member and on the opposite sides of the second running rail.

In a further embodiment of the invention, the lifting device has a pulley block with chain and hook.

In a further embodiment of the invention, the lifting device can be moved manually, electrically or manually and electrically. The purely manual operability significantly reduces complexity and weight, so that this can be advantageous especially in confined spaces.

In a further embodiment of the invention, the H-traverse is H-shaped from double-T-beams. Alternatively, the H-traverse can also be a single double T-beam or have a different shape.

In a further embodiment of the invention, the watercraft has a second space, the second space having an upwardly directed opening. The modular crane has a third cross member and a fourth cross member, the third cross member and the fourth cross member being movable transversely to the longitudinal direction of the cross member in the second space. The H-crossbar can be arranged on the third crossbar and the fourth crossbar. Although it would be advantageous if the first cross member and the second cross member could also be used in the second room, due to the high integration density in watercraft, the dimensions are usually not identical, so that in many cases the first cross member and the second cross member cannot be used in a second space are. However, the H-traverse can be used both on the first cross-member and the second cross-member as well as on the third cross-member and fourth cross-member, so that the H-cross member can be used universally.

In a further embodiment of the invention, the watercraft has a second space, the second space having an upwardly directed opening. The modular crane has a first cross member and a second cross member, the first cross member and the second cross member being movable transversely to the longitudinal direction of the cross member in the second space. The H-crossbar can be arranged on the first crossbar and the second crossbar.

In a further embodiment of the invention, the watercraft is a military watercraft.

1. a) Öffnen wenigstens einer Öffnung in einen ersten Raum,
2. b) Einbringen einer ersten Quertraverse und einer zweiten Quertraverse in den ersten Raum,
3. c) Einbringen einer H-Traverse in den ersten Raum,
4. d) Anordnen der H-Traverse auf der ersten Quertraverse und der zweiten Quertraverse,
5. e) Anordnen der H-Traverse oberhalb der Last,
6. f) Befestigen einer Hebevorrichtung der H-Traverse an der Last,
7. g) Anheben der Last,
8. h) Anordnen der H-Traverse und der Last unterhalb der Öffnung,
9. i) Befestigen eines externen Kranes an einer Befestigungsvorrichtung der H-Traverse,
10. j) Anheben der H-Traverse, sodass die Quertraverse entlastet wird,
11. k) seitliches Fortbewegens der ersten Quertraverse und der zweiten Quertraverse,
12. l) Herausheben der Last und der H-Traverse aus dem ersten Raum und aus dem Wasserfahrzeug mittels des externen Krans.

In a further aspect, the invention relates to a method for discharging a load from a watercraft, the method comprising the following steps:

1. a) opening at least one opening into a first room,
2. b) introducing a first cross member and a second cross member into the first space,
3. c) Insertion of an H-beam in the first room,
4. d) Arranging the H-beam on the first cross-beam and the second cross-beam,
5. e) Arranging the H-cross beam above the load,
6. f) Attaching a lifting device of the H-cross beam to the load,
7. g) lifting the load,
8. h) Arranging the H-beam and the load below the opening,
9. i) Attaching an external crane to a fastening device of the H-cross beam,
10. j) lifting the H-crossbeam so that the crossbeam is relieved,
11. k) lateral movement of the first cross member and the second cross member,
12. l) Lifting the load and the H-cross beam out of the first room and out of the watercraft by means of the external crane.

• m) Einbringen einer weiteren Last und der H-Traverse in den Raum und in das Wasserfahrzeug mittels des externen Krans,
• n) Anordnung der ersten Quertraverse und der zweiten Quertraverse unter der H-Traverse,
• o) Lösen des externen Krans von der Befestigungsvorrichtung der H-Traverse,
• p) Anordnen der H-Traverse und der weiteren Last an der Zielposition,
• q) Absetzen der Last,
• r) Lösen der Last von der Hebevorrichtung der H-Traverse.

In a further embodiment of the invention, the method further comprises the following steps:

• m) Bringing another load and the H-traverse into the room and into the watercraft using the external crane,
• n) arrangement of the first cross member and the second cross member under the H cross member,
• o) Loosening the external crane from the fastening device of the H-cross beam,
• p) Arranging the H-cross beam and the additional load at the target position,
• q) setting down the load,
• r) Loosen the load from the lifting device of the H-cross beam.

The further load is, for example and preferably, a replacement part for the removed load. For example, the load that was removed is a defective motor. In this case, the additional load would be a functioning engine which is brought into the watercraft.

• s) Entfernen der ersten Quertraverse und der zweiten Quertraverse aus dem ersten Raum und dem Wasserfahrzeug,
• t) Verschließen der Öffnung in den ersten Raum.

In a further embodiment of the invention, the method further comprises the following steps:

• s) removing the first cross member and the second cross member from the first room and the watercraft,
• t) closing the opening in the first room.

In a further embodiment of the invention, the lateral movement in step k) takes place in such a way that the first cross member and the second cross member are moved away from the H cross member in the opposite direction.

In a further embodiment of the invention, between step i) and step k), the external crane lifts the H-traverse to such an extent that the H-traverse no longer rests on the first crossbar and the second crossbar and does not counteract the load from below or from the side the first cross member or the second cross member comes.

In a further embodiment of the invention, the arrangement in step e) and in step h) is carried out by moving the first cross member and the second cross member on a first running rail and a second running rail.

• 1 perspektivische Ansicht des ersten Raums mit modularen Kran
• 2 Aufsicht auf ersten Raum und zweiten Raum
• 3 Detaildarstellung Laufrolle

The modular crane according to the invention is explained in more detail below on the basis of an exemplary embodiment shown in the drawings.

• 1 perspective view of the first room with modular crane
• 2 Supervision of the first room and the second room
• 3 Detailed representation of the roller

In 1 shows a machine room with two diesel engines and a gearbox and a modular crane according to the invention in a perspective view. A first running rail is permanently installed in the machine room 70 and a second running rail 80 . A first cross member is placed on top of this 10 and a second cross member 20th placed. On the first cross member 10 and the second cross member 20th becomes an H-beam 30th placed. The first cross member 10 and the second cross member 20th can be transverse to their longitudinal direction and thus in the longitudinal direction of the rails 70 , 80 be moved. The H-Traverse 30th can do this at right angles in the longitudinal direction of the cross members 10 , 20th be moved. Thus, the H-cross beam 30th over almost any point in the engine room, particularly over each of the two motors or the gearbox. The H-Traverse 30th has a lifting device 40 on, with the one load 60 , for example a gearbox, can be attached. About the fastening device 50 can the H-Traverse 30th of the modular crane can be connected to an external crane and thus the load 60 with the H-cross beam 30th be lifted out of the engine room together.

2 shows a floor plan with a first room 90 and a second room 100 , in the case shown, two engine rooms, each with two diesel engines and a gearbox. The first room 90 has a first running rail 70 and a second running rail 80 on which a first cross member 10 and a second cross member 20th can be applied. The second room 100 has a third running rail 110 and a fourth track 120 on which a third cross member 130 and a fourth crossbar 140 can be applied. In the example shown, the first room 90 an H-beam 30th used and in the second room 100 another H-beam 32 . The H-Traverse 30th and the other H-beam 32 differ in width, in the example shown is the H-cross beam 30th suitable a motor and the further H-cross beam 32 to lift out a gear.

In 3 is a detail of the first cross member 10 to see. The first cross member 10 has a caster 150 with which the first cross member 10 on the first track 70 rests. The first cross member is used for lateral stabilization 10 a pair of stabilizing rollers, of which here only one stabilizing roller 160 is shown. The second stabilizing roller is through the first track 70 covered.

List of reference symbols

10

first cross member

20th

second cross member

30th

H-traverse

32

further H-traverse

40

Lifting device

50

Fastening device

60

load

70

first running track

80

second running track

90

first room

100

second room

110

third runner

120

fourth track

130

third cross member

140

fourth cross member

150

Caster

160

Stabilizing role

Claims (12)

System consisting of a watercraft, a modular crane that can be introduced into the watercraft and an external crane, the watercraft having a first space (90) arranged inside the watercraft for bringing in the modular crane, the first space (90) being directed upwards The modular crane has a first cross member (10) and a second cross member (20), the first cross member (10) and the second cross member (20) transversely to the longitudinal direction of the cross members (10, 20) in the first space ( 90) are movable, the modular crane having an H-traverse (30), wherein the H-traverse (30) can be arranged on the first cross-traverse (10) and the second cross-traverse (20), the H-traverse (30 ) is movable in the longitudinal direction of the first cross member (10) and the second cross member (20), the H cross member (30) having a lifting device (40) for attaching and lifting a load (60), the H cross member (30 ) to d he upper side has a fastening device, the fastening device being designed for fastening the H-cross member (30) to the external crane. System according to Claim 1 , characterized in that the watercraft has at least a first running rail (70) and a second running rail (80), the first running rail (70) and the second running rail (80) being arranged within the first space (90), the first Running rail (70) and the second running rail (80) are arranged transversely to the longitudinal direction of the first cross member (10) and the second cross member (20). System according to Claim 2 , characterized in that the first cross member (10) has at least one first roller (150), the first roller (150) being arranged below the first cross member (10) for vertical support on the first running rail (70), the first Cross member (10) has at least one second roller (150), the second roller (150) being arranged below the first cross member (10) for vertical support on the second running rail (80), the first cross member (10) at least one first Having a pair of stabilizing rollers, the first pair of stabilizing rollers being below the first Cross member (10) and is arranged on the opposite sides of the first running rail (70), the first cross member (10) having at least one second pair of stabilizing rollers, the second pair of stabilizing rollers being below the first cross member (10) and on the opposite sides of the second running rail (80) is arranged. System according to one of the preceding claims, characterized in that the lifting device (40) has a pulley block with chain and hook. System according to one of the preceding claims, characterized in that the lifting device (40) can be moved manually, electrically or manually and electrically. System according to one of the preceding claims, characterized in that the H-crossbeam (30) is H-shaped. System according to one of the preceding claims, characterized in that the watercraft has a second room (100), the second room (100) having an upwardly directed opening, the modular crane having a third cross-member (130) and a fourth cross-member ( 140), the third cross-member (130) and the fourth cross-member (140) being movable transversely to the longitudinal direction of the cross-member (130, 140) in the second space (100), the H-cross member (30) on the third cross-member ( 130) and the fourth cross member (140) can be arranged. A method for deploying a load (60) from a watercraft, the method comprising the following steps: a) opening at least one opening into a first space (90), b) introducing a first cross member (10) and a second cross member (20) into the first space (90), c) introducing an H-traverse (30) into the first room (90), d) arranging the H-cross member (30) on the first cross member (10) and the second cross member (20), e) arranging the H-cross member (30) above the load (60), f) attaching a lifting device (40) of the H-traverse (30) to the load (60), g) lifting the load (60), h) arranging the H-cross beam (30) and the load (60) below the opening, i) Attaching an external crane to a fastening device of the H-cross beam (30), j) lifting the H-crossbeam so that the crossbeam is relieved, k) lateral movement of the first cross member (10) and the second cross member (20), I) Lifting the load (60) and the H-traverse (30) out of the first space (90) and out of the watercraft by means of the external crane. Procedure according to Claim 8 , characterized in that the lateral movement in step k) takes place in such a way that the first cross-member (10) and the second cross-member (20) are moved away from the H-cross member (30) in the opposite direction. Method according to one of the Claims 8 to 9 , characterized in that between step i) and step k) the external crane lifts the H-crossbeam (30) so far that the H-crossbeam (30) no longer rests on the first crossbeam (10) and the second crossbeam (20) and the load (60) does not come from below or from the side against the first cross member (10) or the second cross member (20). Method according to one of the Claims 8 to 10 , characterized in that the arrangement in step e) and in step h) takes place by moving the first cross member (10) and the second cross member (20) on a first running rail (70) and a second running rail (80). Method according to one of the Claims 8 to 11 , characterized in that between step a) and step b) a first running rail (70) and a second running rail (80) are introduced into the first space (90).

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