A special limited light shell for manned submersible and its installation and disassembly method

Abstract

The present invention relates to a limited light shell for manned submersible and installation and disassembly method, including symmetrically distributed bottom brackets, the inner side of a single bottom bracket is welded with limited card plates at intervals from one end to the other end, a fixed bracket is horizontally installed above one or more groups of limited card plates corresponding to the left and right, the two ends of the fixed bracket are connected to the bottom bracket by fasteners, a gap is formed between the fixed bracket and the limited card plate, a light shell body is inserted into the gap, and the fixed bracket and the light shell body are locked by fasteners, and the head and tail ends of adjacent light shell bodies are connected by bolts through prefabricated brackets; reinforcing bosses are arranged around the light shell body, and bolt holes for fixing are opened on the reinforcing bosses. On the basis of ensuring the original function, the difficulty of disassembly and assembly can be simplified, the efficiency of maintenance and guarantee can be improved, and the workload of maintenance personnel on board can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of light shells for manned submersibles, and in particular to a special limited light shell for manned submersibles and an installation and disassembly method thereof. Background Art

[0002] A manned submersible is a diving device that has the ability to observe and operate underwater. It is mainly used to perform underwater surveys, seabed exploration, seabed development, salvage, life-saving and other tasks, and can serve as an operating base for underwater activities of divers. Manned submersibles, especially deep-sea manned submersibles, are one of the frontiers and commanding heights of marine development. Its level can reflect a country's comprehensive scientific and technological strength in the fields of materials, control, oceanography, etc. It can complete a variety of complex tasks, including surveying seabed resources through video and photography, executing fixed-point deployment of underwater equipment, and detecting submarine cables and pipelines.

[0003] Manned submersibles enable humans to visit the seabed to conduct field surveys, sampling, mapping, searching, salvage and other operations, and can perform delicate seabed operations in complex marine environments.

[0004] The light outer shell is an important component of a manned submersible. It is used to form the main streamline of the submersible and give the submersible good navigation resistance. Therefore, the light outer shell covers most of the submersible's appearance. It is generally connected to the submersible body through a bracket. In order to reduce the weight of the light outer shell and speed up the discharge of internal seawater after the submersible emerges from the water, lightening holes are often opened in the light outer shell at the bottom of the submersible. Once the submersible is grounded, the mud on the seabed will enter the light outer shell through the lightening holes at the bottom of the light outer shell. This part of the mud will not only affect the balance of the submersible but also be unsightly. Therefore, after the submersible is recovered to the mother ship, the light outer shell at the bottom of the submersible will be disassembled and cleaned. The light outer shell at the bottom of the submersible is often divided into blocks in the extension direction, so the horizontal fixing bolts will form an angle with the bottom brackets on both sides, making it difficult to disassemble and assemble.

[0005] At the same time, the acoustic equipment carried by the submersible needs to emit sound waves, so the light shell needs to be precisely opened at its emitting surface to expose only the emitting surface of the acoustic equipment, which not only protects the equipment but also prevents the sound waves from being blocked. Therefore, the light shell also needs to be disassembled and assembled during equipment maintenance. However, in order to ensure that the light shell is firmly installed, the light shell needs to be installed with multiple horizontal brackets. At the same time, considering that the submersible is generally parked on a transfer trolley on the mother ship, and the transfer trolley will pull up the crossbeam under the submersible to ensure strength, this will reduce the disassembly and assembly space of the light shell at the bottom of the submersible, increase the difficulty of bolt disassembly and assembly, and further increase the overall difficulty of disassembly and assembly of the light shell at the bottom of the submersible.

[0006] At present, there is no such equipment at home and abroad. When the light outer shell at the bottom needs to be disassembled and assembled, it is necessary to use manual delicate operations to avoid obstacles. The operation is complicated and time-consuming. In summary, it is very necessary to develop a bracket-free and limited light outer shell with simple operation and reliable effect. This will effectively reduce weight, reduce the complexity of the bottom structure of the submersible, reduce the difficulty of disassembly and assembly of the light outer shell, and greatly improve the maintenance efficiency of the submersible on the mother ship.

[0007] The bracket-free and limited light shell suitable for deep-sea manned submersibles should have the following characteristics: 1. It is made of fiberglass paste with a thickness not exceeding 4mm to avoid transverse reinforcement so that the light shell has a certain elasticity; 2. The light shell is reinforced with thickened raised structures all around to ensure strength and reduce the use of brackets; 3. A small-sized baffle is welded on the edge of the installation position in the length direction to activate the limiting function; 4. The edge of the installation position in the width direction is fixed with a pre-set bracket and bolted. Summary of the invention

[0008] In view of the shortcomings in the above-mentioned existing production technology, the present applicant provides a limited light shell and installation and disassembly method for a manned submersible, which can simplify the difficulty of disassembly and assembly, improve the efficiency of maintenance and guarantee, and reduce the workload of onboard maintenance personnel while ensuring the original functions.

[0009] The technical solution adopted by the present invention is as follows:

[0010] A limited light shell specially used for manned submersibles comprises symmetrically distributed bottom brackets, the inner side of a single bottom bracket is welded with limited clamping plates at intervals from one end to the other end, a fixed bracket is horizontally installed above one or more groups of limited clamping plates corresponding to the left and right sides, both ends of the fixed bracket are connected to the bottom bracket by fasteners, a gap is formed between the fixed bracket and the limited clamping plate, a light shell body is inserted into the gap, and the fixed bracket and the light shell body are locked by fasteners, the head and tail ends of adjacent light shell bodies are connected by bolts through prefabricated brackets; reinforcing bosses are arranged around the light shell body, and bolt holes for fixing are opened on the reinforcing bosses.

[0011] Its further technical solution is:

[0012] The thickness of the light shell body is less than or equal to 4 mm.

[0013] The light shell body is made of glass fiber reinforced plastic paste.

[0014] A plurality of bolt holes are formed on the surface of the light shell body.

[0015] The limit clamping plate adopts a bending structure.

[0016] The limit clamping plate adopts a "7"-shaped structure.

[0017] The fixing bracket is in the form of an elongated strip, the cross section of the fixing bracket is in a "T"-shaped structure, and the fixing bracket as a whole is conformal to the outer shape of the light shell body.

[0018] A connecting frame is welded to the middle of the fixing bracket.

[0019] The connecting frame adopts a bending structure, and the connecting frame is connected to the main frame.

[0020] A method for installing and disassembling a limited-position light outer shell specially used for a manned submersible comprises the following steps:

[0021] When installing:

[0022] First, prepare the limit card plates, weld them evenly at intervals on the inner side of the bottom bracket, and then install the fixed brackets at intervals at the front and rear ends. At the same time, the ends of the fixed brackets are locked with the bottom brackets by bolts. Insert the light shell body into the gap between the limit card plates and the fixed brackets. After the light shell body is pushed into the standard position, slide and adjust the front and rear position holes to align, and then fix the fixed brackets to the light shell body by bolts.

[0023] When disassembling:

[0024] Remove the bolts on the light shell body and push the light shell body toward the stern of the submersible. When the light shell body is completely pushed out of the gap between the fixing bracket and the limiting card plate, the bottom light shell is removed.

[0025] The beneficial effects of the present invention are as follows:

[0026] The present invention has a compact and reasonable structure and is easy to operate. By adopting a lateral limiting and longitudinal self-connected and fixed mode and utilizing a plug-in method, a new light shell installation and fixing method without an additional bracket is realized, which solves the problem of the original bottom light shell having a complex structure, limited disassembly and assembly space, and complex maintenance operations. On the basis of not affecting the original function of the light shell, the position characteristics and the inherent characteristics of the bottom light shell are fully utilized to simplify the disassembly and assembly operation process and method, effectively reduce the difficulty of disassembly and assembly, and improve the maintenance and guarantee efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of the present invention (light housing body is omitted).

[0029] Figure 3 It is a schematic structural diagram of the light shell body of the present invention.

[0030] Figure 4 It is a schematic structural diagram of the fixing bracket of the present invention.

[0031] Figure 5 This is a schematic structural diagram of the fixing bracket of the present invention from another perspective.

[0032] Among them: 1. Light shell body; 2. Limiting card plate; 3. Fixed bracket; 4. Strengthening boss; 5. Bottom bracket; 6. Connecting frame. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0034] like Figure 1-Figure 5 As shown, the limited light shell specially used for manned submersibles in this embodiment includes symmetrically distributed bottom brackets 5, and the inner side of a single bottom bracket 5 is welded with limited clamping plates 2 at intervals from one end to the other end. A fixed bracket 3 is horizontally installed above one or more groups of limited clamping plates 2 corresponding to the left and right sides, and the two end ends of the fixed bracket 3 are connected to the bottom bracket 5 by fasteners. A gap is formed between the fixed bracket 3 and the limited clamping plate 2, and the light shell body 1 is inserted into the gap, and the fixed bracket 3 and the light shell body 1 are locked by fasteners. The head and tail ends of adjacent light shell bodies 1 are connected by bolts through prefabricated brackets; reinforcing bosses 4 are arranged around the light shell body 1, and bolt holes for fixing are opened on the reinforcing bosses 4.

[0035] The thickness of the light shell body 1 is less than or equal to 4 mm.

[0036] The light shell body 1 is made of glass fiber reinforced plastic paste.

[0037] A plurality of bolt holes are formed on the surface of the light shell body 1 .

[0038] The limiting clamping plate 2 adopts a bending structure.

[0039] The limit clamping plate 2 adopts a "7"-shaped structure.

[0040] The fixing bracket 3 is in the shape of an elongated strip, and the cross section of the fixing bracket 3 is in a “T”-shaped structure. The fixing bracket 3 as a whole is conformal to the outer shape of the light shell body 1 .

[0041] A connecting frame 6 is welded to the middle of the fixing bracket 3 .

[0042] The connecting frame 6 adopts a bending structure, and the connecting frame 6 is connected to the main frame.

[0043] The installation and disassembly method of the special limited light shell for manned submersible of this embodiment includes the following steps:

[0044] When installing:

[0045] First, prepare each limit card plate 2, weld the limit card plate 2 evenly at intervals on the inner side of the bottom bracket 5, then install the fixed bracket 3 at intervals at the front and rear ends, and at the same time, the end of the fixed bracket 3 is locked with the bottom bracket 5 by bolts; insert the light shell body 1 into the gap between the limit card plate 2 and the fixed bracket 3, push the light shell body 1 to the standard position, slide and adjust the front and rear position holes to align, and then fix the fixed bracket 3 to the light shell body 1 by bolts;

[0046] When disassembling:

[0047] Remove the bolts on the light shell body 1, push the light shell body 1 toward the stern of the submersible, and when the light shell body 1 is completely pushed out of the gap between the fixing bracket 3 and the limiting clamping plate 2, the bottom light shell is removed.

[0048] The specific structure and function of the position-limiting light shell for manned submersible described in the present invention are as follows:

[0049] It mainly includes a light shell body 1 and a mounting bracket.

[0050] The light shell body 1 is made of glass fiber reinforced plastic paste, and has reinforcing bosses 4 on its four sides. Bolt holes for fixing are provided on the reinforcing bosses 4 (not shown in the figure);

[0051] The mounting bracket includes: a limiting clamping plate 2 spaced apart at the left and right ends, and a limiting fixing bracket 3 at the front and rear ends.

[0052] The left and right limit clamps 2 are fixed to the inner side of the base bracket 5 by welding, and the detachable front and rear fixed brackets 3 are connected by bolts of the pre-welded mounting plate. The left and right ends of the light shell body 1 are inserted into the limit clamps 2, and the front and rear ends are directly connected to the adjacent light shells and fixed with bolts, and the head and tail ends are connected to the prefabricated brackets by bolts.

[0053] During the actual installation process:

[0054] When installing the light shell, insert the light shell body 1 into the gap between the left and right limit card plates 2 and the end fixing bracket 3, push it to the standard position, slide and adjust the front and rear position holes to align, and then fix it with bolts; when removing the light shell, remove the front and rear fixing bolts of the light shell, push the light shell toward the stern of the submersible, and when the light shell is completely pushed out of the gap between the fixing bracket 3 and the limit card plate 2, the bottom light shell is removed.

[0055] The present invention solves the problem of insufficient original operating space and affecting maintenance efficiency by changing the original bolt fixing mode on the left and right sides into a limiting mode.

[0056] The present invention adopts the form of limiting the left and right ends and fixing the front and rear ends. The left and right ends limit the bottom light shell by reserved limiting card plates 2, and the front and rear ends are fixed by bolts through pre-set light shell fixing brackets 3. The thickness of the light shell is strictly controlled not to exceed 4mm. The reinforcement structure is set around to ensure its strength while retaining a certain toughness. At the same time, to ensure that the strength of the light shell meets the requirements, no reinforcement ribs are set on the internal plane to ensure the toughness of the light shell. The adjacent two light shells are pressed against each other by the reinforcement boss 4 and fixed with bolts, replacing the original bracket fixing method.

[0057] The present invention adopts a method of directly interconnecting adjacent light shells, which reduces the number of installation brackets, simplifies the light shell disassembly and assembly process, reduces the difficulty of light shell disassembly and assembly, and provides effective support for the maintenance of equipment in the light shell at the bottom of the submersible.

[0058] The present invention not only complies with the installation restrictions near the light outer shell, but also takes into account the requirements of aesthetics, integrity, reliability and maintainability, thereby effectively improving the maintenance efficiency of the bottom equipment of the submersible.

[0059] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A special limited light shell for manned submersible, characterized by: The invention comprises symmetrically distributed bottom brackets (5), the inner side of a single bottom bracket (5) is welded with a limiting card plate (2) at intervals from one end to the other end, a fixed bracket (3) is horizontally installed above one or more groups of limiting card plates (2) corresponding to the left and right sides, the two ends of the fixed bracket (3) are connected to the bottom bracket (5) by fasteners, a gap is formed between the fixed bracket (3) and the limiting card plate (2), the light shell body (1) is inserted into the gap, and the fixing bracket (3) and the light shell body (1) are locked by fasteners, and the head and tail ends of adjacent light shell bodies (1) are connected by bolts through prefabricated brackets; the light shell body (1) is provided with a reinforcing boss (4) around it, and bolt holes for fixing are opened on the reinforcing boss (4); the thickness of the light shell body (1) is less than or equal to 4 mm; the light shell body (1) is made of glass fiber reinforced plastic paste; a plurality of bolt holes are opened on the surface of the light shell body (1); the limiting card plate (2) adopts a bending structure; The fixed bracket (3) is in the form of an elongated strip structure, the cross section of the fixed bracket (3) is in the form of a "T"-shaped structure, and the fixed bracket (3) as a whole is conformal to the outer shape of the light shell body (1); a connecting frame (6) is welded to the middle of the fixed bracket (3); the connecting frame (6) adopts a bent structure, and the connecting frame (6) is connected to the main frame.

2. A method for installing and disassembling a position-limiting light shell for a manned submersible according to claim 1, characterized in that: The steps are as follows: When installing: First, prepare the respective limit card plates (2), weld the limit card plates (2) evenly at intervals on the inner side of the base bracket (5), then install the fixed brackets (3) at intervals at the front and rear ends, and at the same time, use bolts to lock the ends of the fixed brackets (3) with the base bracket (5); insert the light shell body (1) into the gap between the limit card plates (2) and the fixed brackets (3), push the light shell body (1) into the standard position, slide and adjust the front and rear position holes to align, and then fix the fixed brackets (3) to the light shell body (1) by bolts; When disassembling: The bolts on the light shell body (1) are removed, and the light shell body (1) is pushed toward the stern of the submersible. When the light shell body (1) is completely pushed out of the gap between the fixing bracket (3) and the limiting clamping plate (2), the bottom light shell is removed.

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