A slewing crane ship auxiliary girder base slewing interface structure

Abstract

The application relates to a kind of auxiliary beam base slewing interface structures of full slewing crane ship, track is circular, and with the main beam base position as center;Auxiliary beam base is directly contacted with track under operation condition, track is rigid structure welded to main deck, can effectively transfer load to main deck without deviation, auxiliary beam base migration condition, jack extends and supports auxiliary beam base away from track, at this time auxiliary beam base is connected with track by runner.The auxiliary beam base slewing interface structure provided by the application realizes slewing by track prefabricated and welded on deck, since auxiliary beam bears smaller load under auxiliary beam migration condition, therefore, it is feasible to realize rotation by using jack and runner device.In this case, the auxiliary beam proposed by the application can cooperate with the main beam to realize full slewing function, and the typical advantage of the application over the existing full slewing crane is that it improves the strength of the main beam on one hand, and the auxiliary beam resists the load of the crane together with the main beam on the other hand.

Description

Technical Field

[0001] This invention relates to a crane vessel, and more particularly to a base rotation interface structure for a fully rotating crane vessel, belonging to the technical field of shipbuilding and marine engineering. Background Technology

[0002] Existing crane vessel bases are generally single-base types, with loads from multiple directions concentrated on a single base. In particular, existing crane vessels generally adopt a full-rotation type. When the crane vessel sways, the base not only bears a large static operating load but also a huge inertial dynamic load. This places extremely high demands on the structural strength of the vessel, resulting in particularly high costs. At the same time, it also poses a great safety hazard, and in severe cases, it can easily cause the vessel to capsize, greatly affecting the operation of the crane vessel.

[0003] The crane vessel, based on the coordinated action of the main beam and the auxiliary beam, can achieve full rotation of the main beam, but the auxiliary beam cannot. Therefore, it is necessary to design an interface structure for the auxiliary beam to achieve full rotation of the crane equipment. Summary of the Invention

[0004] To address the problem that existing crane vessels suffer from large loads on individual bases, which significantly impacts hull structure design and safe operation, this invention provides a rotating interface structure for the auxiliary beam base of a fully rotating crane vessel.

[0005] To achieve the above objectives, the technical solution of the present invention is: a rotating interface structure for the auxiliary beam base of a fully rotating crane vessel, comprising a track, a wheel, and a pin. The track is circular and centered on the position of the main beam base. The auxiliary beam base is in direct contact with the track through the wheel and can rotate on the track. The track is a rigid structure welded to the main deck, which can effectively transfer the load to the main deck without deviation during operation.

[0006] Furthermore, a jack device is fixed on the auxiliary beam base, and the jack device is connected to the central shaft of the rotating wheel.

[0007] Furthermore, during operation, the jack device is in a retracted state, at which time the jack device is located inside the auxiliary beam base.

[0008] Furthermore, when the jack device retracts, the rotating wheel is located inside the auxiliary beam base.

[0009] Furthermore, the main beam base is equipped with a pin inside. When the auxiliary beam base moves to the working position, the pin is inserted into the wheel, thereby restricting the movement of the auxiliary beam base.

[0010] Furthermore, the rotating wheel has an opening in the middle for fixing with a pin.

[0011] Furthermore, the track has an arc-shaped structure to protect the auxiliary beam base.

[0012] Furthermore, the main beam of the crane arm is connected to the main beam base.

[0013] Furthermore, the auxiliary beam of the lifting arm is connected to the auxiliary beam base.

[0014] Furthermore, both the auxiliary beam base and the main beam base are equipped with independent reinforcing structures.

[0015] The beneficial effects of this invention are:

[0016] The auxiliary beam base rotation interface structure provided by this invention achieves rotation via a prefabricated track welded to the deck. Since the auxiliary beam bears a relatively small load during main beam rotation, it is feasible to achieve rotation using jacks and a rotating wheel device. In this case, the auxiliary beam proposed in this invention can cooperate with the main beam to achieve full rotation. The typical advantages of this invention compared to existing full-rotation cranes are, on the one hand, improved main beam strength, and on the other hand, the auxiliary beam and main beam together resisting the crane load. Furthermore, both the main beam base and the auxiliary beam base have independent reinforcing structures, which is more conducive to the design of structural reinforcement and greatly improves operational safety. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the auxiliary beam base of the crane vessel of the present invention under the working condition of auxiliary beam migration.

[0018] Figure 2 This is a longitudinal section view of the auxiliary beam base of the crane vessel of the present invention under the working condition of auxiliary beam migration.

[0019] Figure 3 Schematic diagram of the auxiliary beam and its base;

[0020] Figure 4 This is a cross-sectional view of the auxiliary beam base of the crane vessel of the present invention under working conditions.

[0021] In the diagram: 1 is the main beam of the lifting arm, 2 is the auxiliary beam of the lifting arm, 3 is the base of the auxiliary beam, 4 is the base of the main beam, 31 is the jack device, 32 is the wheel, 33 is the track, and 34 is the pin. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1As shown in Figures 2 and 3, the auxiliary beam base rotation interface structure of a fully rotating crane vessel according to the present invention includes a rotation track 33, a rotating wheel 32, a pin 34, and a jack device 31. The track 33 is circular and centered on the main beam base 4; the auxiliary beam base 3 is in direct contact with the track 33 through the rotating wheel 32 and can rotate on the track 33. The auxiliary beam of the crane arm 2 is connected to the auxiliary beam base 3. The jack device 31 is fixed on the auxiliary beam base 3 and connected to the rotating wheel 32.

[0024] The main beam base 4 is equipped with a pin 34. When the auxiliary beam base 3 moves to the working position, the pin 34 is inserted into the wheel 32, thereby restricting the movement of the auxiliary beam base 3.

[0025] Under operating conditions, the jack device 31 is in the retracted state. At this time, the jack device 31 is located inside the auxiliary beam base 3, and the auxiliary beam base 3 is in direct contact with the track 33. Figure 4 Track 33 is a rigid structure welded to the main deck, which can effectively transfer loads to the main deck without deviation.

[0026] Figure 2 The shaded area in track 33 indicates that the area is curved, which can prevent friction damage between the auxiliary beam base 3 and track 33.

[0027] The main beam 1 of the lifting arm is welded onto the main beam base 4 within the main beam rotation area 5. The wheel 32 has an opening in the middle for fixing with a pin 34.

[0028] Both the main beam base 4 and the auxiliary beam base 3 are equipped with independent reinforcing structures.

Claims

1. A rotating interface structure for the auxiliary beam base of a fully rotating crane vessel, characterized in that: The system includes a track, a rotating wheel, and a pin. The track is circular and centered on the main beam base. The auxiliary beam base is in direct contact with the track via the rotating wheel and can rotate on the track. The main beam base has a pin inside, which is inserted into the rotating wheel when the auxiliary beam base moves to the working position, thereby restraining the movement of the auxiliary beam base. The track is a rigid structure welded to the main deck, which can effectively transfer the load to the main deck under working conditions and prevent the auxiliary beam base from shifting.

2. The auxiliary beam base rotation interface structure of the slewing interface ship according to claim 1, characterized in that: A jack device is fixed on the auxiliary beam base, and the jack device is connected to the central shaft of the wheel.

3. The auxiliary beam base rotation interface structure of the slewing interface ship according to claim 2, characterized in that: During operation, the jack device is in a retracted state, and at this time the jack device is located inside the auxiliary beam base.

4. The auxiliary beam base rotation interface structure of the slewing crane vessel according to claim 2, characterized in that: When the jack device retracts, the rotating wheel is located inside the auxiliary beam base, at which time the auxiliary beam base is in direct contact with the track.

5. The auxiliary beam base rotation interface structure of the slewing interface ship according to claim 1, characterized in that: The rotating wheel has an opening in the middle for fixing with a pin.

6. The auxiliary beam base rotation interface structure of the slewing interface ship according to claim 1, characterized in that: The track has an arc-shaped structure to protect the auxiliary beam base.

7. The auxiliary beam base rotation interface structure of the slewing interface vessel according to claim 1, characterized in that: The main beam is connected to the crane arm main beam on the main beam base.

8. The auxiliary beam base rotation interface structure of the slewing crane vessel according to claim 1, characterized in that: The auxiliary beam of the lifting arm is connected to the base of the auxiliary beam.

9. The auxiliary beam base rotation interface structure of the slewing interface vessel according to any one of claims 1-8, characterized in that: Both the auxiliary beam base and the main beam base are equipped with independent reinforcing structures.

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