A detachable equipment base structure of a ship-mounted special working equipment

Abstract

This invention provides a detachable equipment base structure for shipborne special working equipment. The shipborne special working equipment is fixedly installed on the deck via a base web plate. The base web plate is an "I"-shaped steel structure composed of an upper transverse plate, a lower transverse plate, and a vertical connecting plate. A removable and replaceable pad is provided between the lower transverse plate and the deck. There are no welded connections between the pad and the lower transverse plate or the deck. A retaining plate is welded to one side of the base web plate. One side of the retaining plate extends vertically into an opening on one side of the "I"-shaped steel structure and is welded to the upper transverse plate, lower transverse plate, and vertical connecting plate. The lower edge of the other side of the retaining plate is welded and fixed to the upper surface of the deck. The equipment load acting on the upper transverse plate is transferred to the ship's deck through the retaining plate and the pad. The retaining plate can transfer all equipment loads—vertical tension, vertical pressure, and horizontal force—and requires only a few weld cuts during disassembly. The pad only transfers vertical pressure and is very easy to disassemble.

Description

TECHNICAL FIELD

[0001] The present application relates to the fixed installation of special working equipment on a ship, in particular to a detachable equipment base structure of special working equipment on a ship. BACKGROUND

[0002] In order to increase new functions during the service period, ocean engineering auxiliary ships will install special working equipment on the deck, such as trenchers, pipe reels and saturation diving system devices. These installed equipment usually needs to be connected with the ship deck through the equipment base, and the working load is transmitted to the ship structure through the equipment base. The traditional installation method is to connect the equipment base with the deck through welding. This connection method has some disadvantages such as large welding workload, and is not conducive to disassembly, and needs to be improved.

[0003] The traditional equipment base is composed of a web plate and a face plate, and the web plate is welded to the deck at the bottom during installation. The upper plate of the base is drilled with bolt holes for the connection of the base and the equipment.

[0004] The traditional connection method of the equipment base and the deck is shown in Figure 1 and Figure 2 . The traditional base 2 transmits all equipment loads, including vertical tension, vertical pressure and horizontal force, through the welding seam of the web plate 1 and the deck.

[0005] In order to ensure the strength of the deck structure in the base area, the deck below the area where the traditional base is located usually needs to be newly added with a deck lower reinforcement structure. This is because the equipment load is directly transmitted to the deck through the base web plate, and if there is no component support aligned with the base web plate below the deck (such a situation usually cannot be avoided), the above load may cause damage to the deck structure.

[0006] The existing technology has the following disadvantages:

[0007] 1) Large welding workload during installation. All length ranges of the connection between the base web plate and the deck need to be welded continuously on both sides. If it is a large equipment, the base range is large, and the problem of large welding workload is more prominent.

[0008] 2) A large amount of welding with the deck may cause the deck to deform.

[0009] 3) Strengthening the structure is inconvenient for construction. Traditional equipment base reinforcement is carried out below deck in the area where the equipment is located, such as by adding ribs or trusses aligned with the web of the equipment base. This method is typically suitable for newly built ships. For retrofit projects, since the ship is already built, there may be cables, piping, and other specialized equipment located below deck, as well as potentially inaccessible or cramped compartments. Adding a new reinforcement structure below deck requires the removal of all interfering equipment, repainting after construction, and restoring the removed equipment and structure. This makes the retrofit work and costly. Furthermore, some below-deck compartments may prohibit hot work or lack sufficient construction space, making corresponding reinforcement impossible.

[0010] 4) The installation location and layout of the base are inconvenient, and issues such as the alignment and construction of the under-deck reinforcement structure need to be considered.

[0011] 5) The equipment base is difficult to disassemble. Because it is connected to the deck using extensive welding, disassembling the base requires cutting a large amount of steel plates and weld seams, resulting in a significant workload. Furthermore, cutting the weld seams can easily damage the original ship's deck surface, affecting the ship's safety.

[0012] 6) Small traps can easily form between the equipment bases, leading to water accumulation. Summary of the Invention

[0013] This invention provides a detachable equipment base structure for shipborne special working equipment. The shipborne special working equipment is fixedly mounted on the deck via a base web, and the equipment is bolted to the upper surface of the base web.

[0014] The base web is an "I"-shaped steel composed of an upper horizontal plate, a lower horizontal plate and a vertical connecting plate. A removable and replaceable pad is provided between the lower horizontal plate of the "I"-shaped steel and the deck. There is no welded connection between the pad and the lower horizontal plate or the deck.

[0015] A code plate is welded to one side of the web of the base. One side of the code plate extends vertically into the opening on one side of the "I" shaped steel and is welded to the upper horizontal plate, the lower horizontal plate and the vertical connecting plate. The lower edge of the other side of the code plate is welded and fixed to the upper surface of the deck.

[0016] Furthermore, a plurality of pads are provided between the lower transverse plate and the deck, distributed along the length direction of the web of the base plate.

[0017] Furthermore, the base web is a one-piece molded I-shaped steel plate, or it is welded from three steel plates.

[0018] Furthermore, the multiple base plates form a closed area as the installation area for the shipborne special working equipment, and the code plate is located on the periphery of the closed area.

[0019] Further, the width of the code plate is greater than the width of the base web, and the side of the code plate away from the base web is a downwardly inclined slope.

[0020] Further, the adjacent code plates are connected by connecting frames.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. The welding work is small during installation, and only the connection parts of the code plate and the deck and the base web need to be welded.

[0023] 2. The welding amount is small during installation, and the deck is not prone to deformation.

[0024] 3. The construction of the reinforced structure is facilitated, and the transformation cost is low. The new base structure transmits the load through the code plate and the pad, and basically does not need to add a reinforced structure under the deck. Unless in special cases (such as the original ship structure under the deck is weak), only a small range of reinforced structure under the deck needs to be added. Therefore, during the entire equipment installation process, the workload of the structure under the deck is very small, and the transformation cost is greatly reduced.

[0025] 4. The installation and arrangement of the base are facilitated. Since the base web is not directly connected to the deck, only the alignment of the code plate and the pad with the components under the deck is required, and the equipment base itself does not need to consider whether it is aligned with the structure under the deck, and the arrangement and installation are more convenient.

[0026] 5. The equipment is facilitated to be disassembled or moved to other ships for use. The new base structure is more convenient to disassemble, and the cutting workload is small, and the damage to the surface of the original ship deck is also small. At the same time, the equipment base can be transferred to other ships together with the equipment, and only the position of the code plate needs to be changed or a local base structure needs to be added during installation, without the need for re-design, thereby improving the material utilization rate.

[0027] 6. It is beneficial to protect the equipment on the deck. When the ship is running at sea, there will inevitably be a large amount of water on the deck. Since the pad is raised, there is a gap between the equipment base and the deck, which will facilitate the drainage of water in the base area. Therefore, the new equipment base can avoid the equipment from being soaked by water, and protect the safe use of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0029] Figure 1 This is a top view of the connection method between the equipment base and the deck in the prior art;

[0030] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0031] Figure 3 This is a top view showing the connection between the base and the deck of the device of the present invention;

[0032] Figure 4 for Figure 3 Cross-sectional view along the BB direction;

[0033] Figure 5 This is a schematic diagram showing the connection between the ramp plate, deck, and base web. Detailed Implementation

[0034] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0035] To fully understand this invention, detailed steps and structures will be presented in the following description to illustrate the technical solution of this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0036] Reference Figures 3-5 As shown, the present invention provides a detachable equipment base structure for shipborne special working equipment 3, which is fixedly installed on the deck 4 via the base web plate 10.

[0037] The base web 10 is an "I"-shaped steel structure composed of an upper horizontal plate 12, a lower horizontal plate 13, and a vertical connecting plate 11. A removable and replaceable pad 14 is provided between the lower horizontal plate 13 of the "I"-shaped steel and the deck 4. The base web 10 presses the pad 14 tightly against the upper surface of the deck 4, and there is no connection between the pad 14 and the lower horizontal plate 13 or the deck 4. A retaining plate 20 is welded to one side of the base web 10. One side of the retaining plate 20 extends vertically into the opening on one side of the "I"-shaped steel and is welded to the upper horizontal plate 12, the lower horizontal plate 13, and the vertical connecting plate 11. The lower edge of the other side of the retaining plate 20 is welded and fixed to the upper surface of the deck 4.

[0038] Compared to existing technologies, this invention adds a lower horizontal plate 13, a pad plate 14, and a mounting plate 20 to the traditional base. The base web of this invention is not welded to the deck. One side of the mounting plate 20 is welded to the base web, and the bottom of the mounting plate 20 is welded to the hull deck. The mounting plate 20 connects the base web to the hull deck 4. The lower horizontal plate 13 is higher than the hull deck 4, and a pad plate 14 is provided between a portion of the bottom of the lower horizontal plate 13 and the hull deck 4. There is no effective welding between the pad plate 14, the lower horizontal plate 13, and the hull deck 4.

[0039] Analysis of the characteristics of each component: The equipment load acting on the lower transverse plate 13 is transferred to the hull deck through the mounting plate 20 and the pad plate. The mounting plate 20 can transmit all vertical tensile forces, vertical compressive forces, and horizontal forces of the equipment load, and only requires cutting a few welds during disassembly. The pad plate 14 only transmits vertical compressive forces. Since the pad plate 14 is not connected to the lower transverse plate 13 or the deck 4, it is very convenient to disassemble and can be directly removed without any additional operations.

[0040] In an optional embodiment, a plurality of pads 14 are provided between the lower transverse plate 13 and the deck 4, distributed along the length of the base web 10. There is a gap between the equipment base and the deck between the connected pads 14, which will facilitate the drainage of water in the base area.

[0041] In an optional embodiment, the base web 10 is an integrally formed I-beam, which has higher strength and can better transfer loads. Of course, three steel plates can also be welded together to form an I-beam.

[0042] In an optional embodiment, multiple base webs 10 form a closed area as an installation area for shipborne special working equipment, and the code plate 20 is located on the periphery of the closed area to facilitate the installation of the code plate 20.

[0043] In an optional embodiment, in order to ensure the connection between the code plate 20 and the base web 10 and the deck 4, the code plate 20 needs to have a certain degree of width, preferably the width of the code plate 20 is greater than the width of the base web 10, and the side of the code plate 20 away from the base web 10 is a downward sloping surface 21, which can better transfer the load of the equipment and the base to the deck.

[0044] In an optional embodiment, adjacent code plates 20 are connected by a connecting frame to strengthen the connection between the code plates 20. Of course, to simplify the structure, the connecting frame can also be omitted.

[0045] To improve strength, the key points for the arrangement of pad 14 and counter plate 20 are as follows:

[0046] 1) The placement of the pads 14 and the blocks 20 should take into account the original structure (such as beams, girders, bulkheads, etc.) under the deck 4. There must be a support member under the deck 4 in the area where the pads 14 are placed, and the blocks 20 must be aligned with the original structure under the deck 4.

[0047] 2) Near the base position where the equipment load is mainly vertical pressure, one or more pads 14 can be placed to transfer the equipment load to the deck 4. The placement of the pads 14 is described in 3.

[0048] 3) Near the base position where the equipment load is mainly vertical tension, one or more blocks 20 can be placed to transfer the equipment load to the deck 4. The placement of the blocks 20 is described in 3.

[0049] 4) To transfer the horizontal equipment load, the blocks 20 must be placed.

[0050] 5) The connection of the blocks 20 with the base web and the deck 4 of the ship requires welding, and this construction requires a certain space, so the blocks 20 can only be placed outside the area surrounded by the equipment base.

[0051] 6) To reduce the workload during disassembly, the number of blocks 20 should not be too large, and the strength requirement should be met.

[0052] The above describes the preferred embodiments of the present application. It should be understood that the present application is not limited to the above specific embodiments, and the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical solutions of the present application, still belongs to the scope of protection of the technical solutions of the present application.

Claims

1. A detachable equipment base structure for shipborne special working equipment, wherein the shipborne special working equipment is fixedly installed on the deck (4) via a base web (10), and the shipborne special working equipment is fixedly installed on the upper surface of the base web (10) by bolts, characterized in that, The base web (10) is an "I"-shaped steel composed of an upper horizontal plate (12), a lower horizontal plate (13) and a vertical connecting plate (11). A pad (14) is provided between the lower horizontal plate (13) and the deck (4). The lower horizontal plate (13) presses the pad (14) against the upper surface of the deck (4) and there is no connection between the pad (14) and the lower horizontal plate (13) and the deck (4). A code plate (20) is welded to one side of the web plate (10) of the base. One side of the code plate (20) extends vertically into the opening on one side of the "I"-shaped steel and is welded to the upper horizontal plate (12), the lower horizontal plate (13) and the vertical connecting plate (11). The lower edge of the other side of the code plate (20) is welded to the upper surface of the deck (4). The multiple base webs (10) form a closed area as the installation area for the shipborne special working equipment, and the code plate (20) is located on the periphery of the closed area; The width of the code plate (20) is greater than the width of the base web plate (10), and the side of the code plate (20) away from the base web plate (10) is a downward sloping surface (21).

2. The detachable equipment base structure as described in claim 1, characterized in that, A plurality of pads (14) are provided between the lower horizontal plate (13) and the deck (4) at intervals, distributed along the length direction of the base web (10).

3. The detachable equipment base structure as described in claim 1, characterized in that, The base web (10) is an integrally formed "I"-shaped steel, or is welded from three steel plates.

4. The detachable equipment base structure as described in claim 1, characterized in that, The adjacent code plates (20) are connected by a connecting frame.

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