Cargo hold hatch end beam structure of large bulk carrier

Abstract

The utility model discloses a cross beam structure for the hatch end of a cargo hold of a large bulk carrier. The cross beam structure for the hatch end comprises a first flat steel (2), a second flat steel (3) and a third flat steel (4); the upper edge of the first flat steel is welded to the lower part of the deck (1), the second flat steel is welded to the lower part of the first flat steel, the upper edge of the third flat steel is welded to the lower edge of the first flat steel; the lower edge of the third flat steel has a wide bottom (41), the wide bottom is integrally formed with the third flat steel, and the upper surface of the wide bottom is inclined downward; the lower edge of the third flat steel is provided with an anti-collision semi-circular steel (5). In the cross beam structure for the hatch end of the utility model, the lower edge of the third flat steel is provided with an integrally formed wide bottom, and no special welding is required, so that a large amount of solder does not need to be piled up at the welding groove, and a large amount of time does not need to be spent on welding, and the occurrence of welding deformation of the web of the cross beam is also avoided.

Description

Technical Field

[0001] The utility model relates to a hull structure design, in particular to a cargo hold hatch end cross beam structure of a large bulk carrier. Background Art

[0002] At present, a large bulk carrier has a crossbeam structure at the cargo hold hatch end, and the function of the crossbeam structure is to enhance the structural strength of the cargo hold hatch end.

[0003] See also Figure 1 The current cross beam structure at the cargo hold hatch end includes a cross beam web 6 and a cross beam face plate 7. The cross beam web 6 is welded to the deck 1 and is located below the deck 1. The cross beam web 6 is in an upright position. The cross beam face plate 7 is welded to the lower end of the cross beam web 6 in the vertical direction and is located on the side of the cross beam web 6 facing away from the cargo hold hatch. To prevent cargo accumulation, the cross beam face plate 7 is not horizontal but tilted downward by about 45 degrees.

[0004] The current problem is:

[0005] Problem 1: As bulk carriers become larger, the cross beam panel 7 in the cross beam structure at the hatch end of the cargo hold becomes thicker and thicker, and the weld groove between the cross beam panel 7 and the cross beam web 6 becomes larger and larger. During welding, a large amount of solder needs to be accumulated at the groove, and a lot of time is spent on welding.

[0006] Problem 2: The large groove welding between the beam face plate 7 and the beam web 6 causes serious welding deformation of the beam web 6, which needs to be corrected. Summary of the invention

[0007] The utility model aims to provide a cargo hold hatch end cross beam structure of a large bulk carrier, wherein an integrally formed wide bottom is arranged at the lower edge of the third flat steel, and no special welding is required, thereby eliminating the need to accumulate a large amount of solder at the welding groove.

[0008] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0009] A cross beam structure for a cargo hold hatch end of a large bulk carrier, the cross beam structure comprising a first flat steel, a second flat steel and a third flat steel; the upper edge of the first flat steel is welded to the lower part of the deck, the second flat steel is welded to the lower part of the first flat steel, the upper edge of the third flat steel is welded to the lower edge of the first flat steel; the lower edge of the third flat steel has a wide bottom, the wide bottom is integrally formed with the third flat steel, and the upper surface of the wide bottom is inclined downward.

[0010] Furthermore, the wide bottom is a protrusion toward one side at the lower edge of the third flat steel.

[0011] Further, the downwardly inclined angle of the upper surface of the wide bottom is set within the range of 30 to 45 degrees.

[0012] Furthermore, an anti-collision semi-circular steel is arranged at the lower edge of the third flat steel.

[0013] Furthermore, the height of the first flat steel is set within the range of 550 to 1100 mm.

[0014] Furthermore, the height of the third flat steel is set within the range of 340 to 430 mm.

[0015] Furthermore, the distance between the lower edge of the second flat steel and the first flat steel is set in the range of 100 to 150 mm.

[0016] Compared with the prior art, the hatch end beam structure of the utility model has the following beneficial effects:

[0017] 1) The lower edge of the third flat steel is provided with an integrally formed wide bottom, which does not require special welding, thereby eliminating the need to accumulate a large amount of solder at the welding groove, and eliminating the need to spend a lot of time on welding. This also avoids the occurrence of welding deformation of the web of the beam;

[0018] 2) The second flat steel is connected to the lower part of the first flat steel by welding, so as to achieve the function of reinforcing the structure;

[0019] 3) The anti-collision semi-circular steel provided at the lower edge of the third flat steel can prevent the cargo grab from colliding with the main structure of the deck, thereby avoiding damage to the main structure of the deck due to impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a hatch end beam structure of the prior art;

[0021] Figure 2 The utility model is a schematic structural diagram of a cargo hold hatch end cross beam structure of a large bulk carrier. DETAILED DESCRIPTION

[0022] The utility model is further described below with specific embodiments:

[0023] See also Figure 2 This embodiment provides a cargo hold hatch end cross beam structure of a large bulk carrier, and the hatch end cross beam structure includes a first flat steel 2, a second flat steel 3 and a third flat steel 4.

[0024] The first flat steel 2 is located below the deck 1 and at the edge of the cargo hold hatch of the deck 1 . The upper edge of the first flat steel 2 is connected to the lower part of the deck 1 by welding. The first flat steel 2 is in an upright state, or in other words, the first flat steel 2 is perpendicular to the deck 1 .

[0025] The second flat steel 3 is connected to the lower part of the first flat steel 2 by welding and is located on the side of the first flat steel 2 facing away from the cargo hold hatch, and the second flat steel 3 is in a horizontal state, or in other words, the second flat steel 3 is parallel to the deck 1; the function of the second flat steel 3 is to form a reinforcement structure with the first flat steel 2.

[0026] The third flat steel 4 has a wide bottom 41 at its lower edge, and the wide bottom 41 is formed integrally with the body of the third flat steel 4 , thus avoiding on-site welding processing.

[0027] The wide bottom 41 is substantially a protrusion protruding toward one side at the lower edge of the third flat steel 4, and the upper surface of the wide bottom 41 is inclined. Specifically, the upper surface of the wide bottom 41 starts to incline downward from the body of the third flat steel 4, and the incline angle is about 30 to 45 degrees.

[0028] The upper edge of the third flat steel 4 is connected to the lower edge of the first flat steel 2 by welding, and the wide bottom 41 of the lower part of the third flat steel 4 faces away from the cargo hold hatch.

[0029] At this point, the hatch end beam structure is basically formed.

[0030] In addition, an anti-collision semi-circular steel 5 is provided at the lower edge of the third flat steel 4, and the anti-collision semi-circular steel 5 is provided on the side of the third flat steel 4 facing away from the wide bottom 41, or in other words, on the side facing the cargo hold hatch. The anti-collision semi-circular steel 5 is used to prevent the cargo grab from colliding with the main structure of the deck.

[0031] It should be noted that the specific size and position of the first flat steel 2 , the second flat steel 3 and the third flat steel 4 can be determined according to actual needs.

[0032] The height of the first flat steel 2 (the height from the upper edge to the lower edge, such as Figure 2 The height indicated by h1 in the figure is usually set within the range of 550 to 1100 mm.

[0033] The height of the third flat steel 4 (the height from the upper edge to the lower edge, such as Figure 2 The height indicated by h2 in the figure is usually set in the range of 340 to 430 mm.

[0034] The distance between the position of the second flat steel 3 and the lower edge of the first flat steel 2 (such as Figure 2The height indicated by h3 in the figure is usually set within the range of 100 to 150 mm.

[0035] The overall height of the hatch end beam structure can be determined by design specifications.

[0036] The hatch end beam structure of this embodiment has the following advantages:

[0037] 1) A wide bottom 41 is provided at the lower edge of the third flat steel 4, and the wide bottom 41 is integrally formed with the body of the third flat steel 4. In this way, the operation process of "welding the cross beam panel" in the prior art is eliminated, so that there is no need to accumulate a large amount of solder at the welding groove, and there is no need to spend a lot of time on welding. At the same time, the occurrence of "cross beam web welding deformation" is also avoided;

[0038] 2) The second flat steel 3 is connected to the lower part of the first flat steel 2 by welding, so as to achieve the function of reinforcing the structure;

[0039] 3) The anti-collision semi-circular steel 5 provided at the lower edge of the third flat steel 4 can prevent the cargo grab from colliding with the main structure of the deck, thereby avoiding the main structure of the deck from being damaged by the impact.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cargo hold hatch end cross beam structure of a large bulk carrier, characterized in that: The hatch end cross beam structure comprises a first flat steel (2), a second flat steel (3) and a third flat steel (4); The upper edge of the first flat steel (2) is welded to the lower part of the deck (1), the second flat steel (3) is welded to the lower part of the first flat steel (2), and the upper edge of the third flat steel (4) is welded to the lower edge of the first flat steel (2); The third flat steel (4) has a wide bottom (41) at the lower edge thereof. The wide bottom (41) is formed integrally with the third flat steel (4), and the upper surface of the wide bottom (41) is inclined downward.

2. The cargo hold hatch end cross beam structure of a large bulk carrier according to claim 1, characterized in that: The wide bottom (41) is a protrusion toward one side at the lower edge of the third flat steel (4).

3. The cargo hold hatch end cross beam structure of a large bulk carrier according to claim 1, characterized in that: The downwardly inclined angle of the upper surface of the wide bottom (41) is set within the range of 30 to 45 degrees.

4. The cargo hold hatch end cross beam structure of a large bulk carrier according to claim 1, characterized in that: An anti-collision semi-circular steel (5) is arranged at the lower edge of the third flat steel (4).

5. The cargo hold hatch end cross beam structure of a large bulk carrier according to claim 1, characterized in that: The height of the first flat steel (2) is set within the range of 550 to 1100 mm.

6. The cargo hold hatch end cross beam structure of a large bulk carrier according to claim 1, characterized in that: The height of the third flat steel (4) is set within the range of 340-430 mm.

7. The cargo hold hatch end cross beam structure of a large bulk carrier according to claim 1, characterized in that: The distance between the second flat steel (3) and the lower edge of the first flat steel (2) is set in the range of 100 to 150 mm.

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