Method for installing fitting-out part on multi-thickness splicing structure

Abstract

The invention provides a method for mounting an outfitting on a multi-thickness splicing structure, which comprises the following steps of: S1, after a watertight sliding door is perforated and positioned, repairing and welding a local filling panel in a hole edge mounting area to make up the thickness difference of the panel; s2, the watertight sliding door frame and the supplemented local filling panel are welded, a welding seam influence area needs to be treated, surface paint needs to be polished away, and the natural color of metal is exposed; and S3, the guide rail fixing plate is welded and fixed to a deck or a bulkhead reinforcing rib, and then the tail end of the guide rail is fixed to the guide rail fixing plate. According to the method for installing the outfitting piece on the multi-thickness splicing structure, through the design that the local filling-in panel is subjected to repair welding to level the thickness difference of the ship body plate, the installation environment of large outfitting pieces such as a watertight sliding door is effectively improved, normal use of equipment is ensured, and modification of a large-area ship body structure is effectively avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a method for installing outfitting parts on a multi-thickness splicing structure. Background Art

[0002] During the design and construction of large ship sections, the thickness of the bulkheads of the sections often varies. When installing large outfitting parts, such as watertight sliding doors, on bulkheads with different thicknesses, the thickest panel on the bulkhead will be used as a reference during the initial design or construction of the hull, and the thickness of the bulkhead will be replaced on a large scale.

[0003] When the installation frame of large outfitting parts such as watertight sliding doors occupies a wide area, the hull plate replacement area in the installation area is large, which is not conducive to the control of the weight and center of gravity of the ship and easily causes waste of plate materials. Summary of the invention

[0004] The present invention provides a method for installing outfitting parts on a multi-thickness splicing structure, comprising the following steps:

[0005] S1: After the watertight sliding door opening is positioned, local flattening plates are welded in the installation area at the edge of the hole to make up for the plate thickness difference;

[0006] S2: Weld the watertight sliding door frame to the added local flat plate. The weld affected area should be treated and the surface paint should be polished off to reveal the original color of the metal;

[0007] S3: Weld the guide rail fixing plate to the deck or bulkhead reinforcement, and then fix the end of the guide rail to the guide rail fixing plate.

[0008] Further: In S1, the plane size of the local flat panel is determined by the size of the connection between the watertight sliding door frame and the hull.

[0009] Further: In S1, the thickness of the local flattening plate is determined by the plate thickness difference of the hull at the opening of the watertight sliding door.

[0010] Further: In said S1, the size of the bulkhead opening is confirmed, the diagonal error of the opening does not exceed 3 mm, the flatness of the bulkhead opening area is within 2 mm, and there are no burrs on the opening edge.

[0011] Further: In S2, before the watertight door frame is welded to the hull, the door frame and door leaf should be kept closed.

[0012] Further: In S2, an eye plate for hoisting is provided on the upper part of the watertight door frame, and the watertight door frame is positioned with the hull bulkhead.

[0013] Further: in S2, after the watertight door frame and the hull bulkhead are positioned, intermittent welding is performed.

[0014] Further: in S2, after the intermittent welding is completed, the door frame is subjected to double-sided continuous welding.

[0015] Further: Also included: S4: After welding is completed, check the flatness of the door frame.

[0016] Further: in S4, after welding is completed, check that the flatness of the door frame is not greater than 1 mm.

[0017] The beneficial effects brought by the present invention are as follows:

[0018] It can be seen from the above scheme that the present invention provides a method for installing outfitting parts on a multi-thickness splicing structure. Through the design of locally patching the flat plate to level the thickness difference of the hull plate, the installation environment of large outfitting parts such as watertight sliding doors is effectively improved, the normal use of the equipment is ensured, and the modification of large-area hull structure is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flow chart showing a method for installing an outfitting part on a multi-thickness splicing structure provided by the present invention;

[0020] Figure 2 A schematic diagram showing a local flat-filling plate and a hull opening provided by the present invention;

[0021] Figure 3 A schematic diagram showing the structure of a local flat-surface-complementing panel provided by the present invention;

[0022] Figure 4 A schematic diagram showing the structure of a watertight sliding door provided by the present invention;

[0023] Figure 5 A schematic diagram showing the installation structure of the watertight sliding door provided by the present invention;

[0024] Figure 6 A schematic diagram showing intermittent welding after the watertight door frame provided by the present invention and the hull bulkhead are positioned.

[0025] In the figure, 1 is the bulkhead; 2 is the door frame; 3 is the eye plate; 4 is the watertight door; 5 is the first panel; 6 is the second panel; 7 is the third panel; 8 is the first section; 9 is the third section; 10 is the local flattening panel; and 11 is the guide rail fixing plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 6 As shown, the present invention provides a method for installing outfitting parts on a multi-thickness splicing structure, comprising the following steps:

[0028] S1: After the watertight sliding door opening is positioned, a local flat plate 10 is welded in the installation area at the edge of the hole to make up for the plate thickness difference;

[0029] S2: Weld the watertight sliding door frame 2 to the added partially flattened plate 10. The weld affected area should be processed and the surface paint should be polished off to reveal the original color of the metal;

[0030] S3: Weld and fix the guide rail fixing plate 11 to the deck or bulkhead 1 reinforcement rib, and then fix the end of the guide rail to the guide rail fixing plate 11.

[0031] The present invention provides a method for installing outfitting parts on a multi-thickness splicing structure. By means of a design of welding a local flat plate 10 to level the thickness difference of a hull plate, the installation environment of large outfitting parts such as watertight sliding doors is effectively improved, the normal use of the equipment is ensured, and the modification of a large area of ​​the hull structure is effectively avoided.

[0032] Furthermore, in S1, the plane size of the local flat filling plate 10 is determined by the size of the connection between the watertight sliding door frame 2 and the hull.

[0033] Add 15 to 30 mm to the connection size on one side to ensure that the welds do not overlap.

[0034] Furthermore, in S1, the thickness dimension of the local flattening plate 10 is determined by the plate thickness difference of the hull at the opening of the watertight sliding door.

[0035] For example Figure 2 and Figure 3 As shown, the first panel 5 of the hull is 10 mm thick, the second panel 6 is 25 mm thick, and the third panel 7 is 15 mm thick. The corresponding first section 8 of the local flat panel 10 is 15 mm thick, the second section is 0 mm thick, and the third section 9 is 10 mm thick.

[0036] Furthermore, confirm the size of the hole in bulkhead 1, the diagonal error of the hole does not exceed 3mm, the flatness of the hole area in bulkhead 1 is within 2mm, and there are no burrs on the edge of the hole.

[0037] Ensure installation accuracy and appearance.

[0038] Further, in S2, before the door frame 2 of the watertight door 4 is welded to the hull, the door frame 2 and the door leaf should be kept in a closed state for easy installation.

[0039] Further, in S2, an eye plate 3 for hoisting is provided on the upper part of the door frame 2 of the watertight door 4, and the door frame 2 of the watertight door 4 is positioned with the bulkhead 1 of the hull.

[0040] Easy to install and hoist.

[0041] Further, in S2, after the door frame 2 of the watertight door 4 and the hull bulkhead 1 are positioned, intermittent welding is performed. Figure 6 shown.

[0042] Further, in S2, after the intermittent welding is completed, the door frame 2 is subjected to double-sided continuous welding.

[0043] Ensure sealing effect.

[0044] Further, the method further includes: S4: after welding is completed, checking the flatness of the door frame 2 .

[0045] Further, in S4, after welding is completed, the flatness of the door frame 2 is checked to be no greater than 1 mm.

[0046] Ensure installation accuracy.

[0047] The present invention provides a method for installing outfitting parts on a multi-thickness splicing structure. By means of a design of welding a local flat plate 10 to level the thickness difference of a hull plate, the installation environment of large outfitting parts such as watertight sliding doors is effectively improved, the normal use of the equipment is ensured, and the modification of a large area of ​​the hull structure is effectively avoided.

[0048] It is widely used in the installation of outfitting parts on hull panels with multiple plate thickness differences.

[0049] Avoid large-scale modification of the hull structure, reduce material loss, and facilitate free positioning of outfitting parts without being restricted by structural divisions.

[0050] The method provides convenience for the installation of medium and large outfitting parts in the shipbuilding industry, improves installation efficiency and reduces the design error rate.

[0051] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for installing outfitting parts on a multi-thickness splicing structure, characterized in that: The following steps are involved: S1: After the watertight sliding door opening is positioned, local flattening plates are welded in the installation area at the edge of the hole to make up for the plate thickness difference; S2: Weld the watertight sliding door frame to the added local flat plate. The weld affected area should be treated and the surface paint should be polished off to reveal the original color of the metal; S3: Weld the guide rail fixing plate to the deck or bulkhead reinforcement, and then fix the end of the guide rail to the guide rail fixing plate.

2. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: In S1, the plane size of the local flat-filling plate is determined by the size of the connection between the watertight sliding door frame and the hull.

3. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: In S1, the thickness of the local flattening plate is determined by the plate thickness difference of the hull at the opening of the watertight sliding door.

4. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: In S1, the size of the bulkhead opening is confirmed, the diagonal error of the opening does not exceed 3 mm, the flatness of the bulkhead opening area is within 2 mm, and there is no burr on the edge of the opening.

5. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: In S2, before the watertight door frame is welded to the hull, the door frame and door leaf should be kept closed.

6. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: In the S2, an eye plate for hoisting is provided on the upper part of the watertight door frame, and the watertight door frame is positioned with the hull bulkhead.

7. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: In S2, after the watertight door frame and the hull bulkhead are positioned, intermittent welding is performed.

8. The method for installing outfitting on a multi-thickness splicing structure according to claim 7 is characterized in that: In S2, after the intermittent welding is completed, the door frame is subjected to double-sided continuous welding.

9. The method for installing outfitting on a multi-thickness splicing structure according to claim 1 is characterized in that: Also includes: S4: After welding is completed, check the flatness of the door frame.

10. The method for installing outfitting on a multi-thickness splicing structure according to claim 9, characterized in that: In S4, after welding is completed, the flatness of the door frame is checked to be no greater than 1 mm.

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