Installation structure of a spare part lifting deck and a spare part lifting pedestal

Abstract

The present invention provides a spare part lifting deck, which comprises a basic deck and two extended decks; the basic deck is the ceiling of the deck cabin below the spare part lifting deck; the basic deck has two bow vertices P, and the bow vertex P is the layout center of the spare part lifting pedestal; the two extended decks are respectively located at the two bow vertices P of the basic deck to butt-joint to form the spare part lifting deck; the spare part lifting deck has a spare part lifting pedestal layout area with a corresponding bow vertex P as the center and a radius of R1 at the positions of the two bow vertices P, wherein R1 is determined according to the outer circle radius of the spare part lifting pedestal and the distance requirement between the spare part lifting pedestal and the edge of the spare part lifting deck; the area S2 of the extended deck satisfies: The present invention determines the position and area of the extended deck according to the ceiling of the cabin below the spare part lifting deck, the layout area requirement of the spare part lifting pedestal and the layout center of the spare part lifting pedestal, so that the idle area on the spare part lifting deck is greatly reduced, and the weight and steel cost of the spare part lifting deck are reduced.

Description

Technical Field

[0001] The present invention belongs to the field of shipbuilding, and particularly relates to an installation structure of a spare part hoisting deck and a spare part hoisting pedestal. Background Art

[0002] The ship spare part hoist is used for hoisting spare parts in the engine room shed area, and is installed on the spare part hoisting deck (usually the second deck of the engine room shed) through the spare part hoisting pedestal. When arranging the spare part hoisting pedestal, its center needs to be aligned with the bow vertex of the deck cabin below the spare part hoisting deck, so as to utilize the bulkhead of the lower deck cabin to assist in supporting the spare part hoisting pedestal. Therefore, in addition to the deck roof for closing the top opening of the lower deck cabin, the spare part hoisting deck also needs to include an additional extended deck to ensure that there is enough area on the spare part hoisting deck for arranging the spare part hoisting pedestal. Currently, the spare part hoisting deck is directly enlarged on the basis of the deck roof. Although it meets the layout requirements of the spare part pedestal, it generates more idle areas during the enlargement process. These idle areas cause additional weight on the spare part hoisting deck, increasing the weight of the whole ship and being unfavorable for reducing the cost of the ship. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the present invention is to provide an installation structure of a spare part hoisting deck and a spare part hoisting pedestal, which optimizes the shape of the spare part hoisting deck to reduce the idle area of the spare part hoisting deck while meeting the layout requirements of the spare part pedestal, thereby reducing the weight of the whole ship.

[0004] The present invention provides a spare part hoisting deck, which is used to install two spare part hoisting pedestals; the spare part hoisting deck includes a basic deck and two extended decks; the basic deck is the deck roof of the deck cabin below the spare part hoisting deck; the basic deck has two bow vertices P, and the bow vertex P is the layout center of the spare part hoisting pedestal; the two extended decks are respectively located at the two bow vertices P of the basic deck to butt-joint to form the spare part hoisting deck; the spare part hoisting deck has a spare part hoisting pedestal layout area with the bow vertex P as the center and R1 as the radius at the positions of the two bow vertices P, where R1 is determined according to the outer circle radius of the spare part hoisting pedestal and the distance requirement between the spare part hoisting pedestal and the edge of the spare part hoisting deck; the area S2 of the extended deck satisfies: The present invention determines the position and area of the extended deck according to the deck roof of the cabin below the spare part hoisting deck, the layout area requirement of the spare part hoisting pedestal, and the layout center of the spare part hoisting pedestal, so that the idle area on the spare part hoisting deck formed by the deck roof and the extended deck is greatly reduced, thereby reducing the weight of the spare part hoisting deck, and further reducing the weight and cost of the whole ship.

[0005] Preferably, the extended deck is a fan-shaped deck to ensure the least idle area on the spare part hoisting deck.

[0006] The present invention also provides an installation structure for a spare part hoisting base, which includes a spare part hoisting deck and a bottom strengthening structure arranged below the spare part hoisting deck. The bottom strengthening structure includes a strengthening cylinder fixed to the bottom of the spare part hoisting deck and a strengthening bracket for connecting the spare part hoisting deck and the strengthening cylinder; the strengthening cylinder is coaxially arranged with the spare part hoisting base; the load transmitted from the spare part hoisting base is dispersed through the bottom strengthening structure, avoiding tearing of the spare part hoisting deck at the spare part hoisting base and improving the structural strength of the spare part hoisting deck.

[0007] Preferably, the strengthening bracket includes an in-cylinder strengthening bracket and an out-of-cylinder strengthening bracket.

[0008] Preferably, the bottom end of the strengthening cylinder extends downward and is welded to the next lower deck of the spare part hoisting deck.

[0009] Preferably, the strengthening cylinder is connected to the deck bulkhead of the deck below the spare part hoisting deck, and there is a spacing between the bottom end of the strengthening cylinder and the next lower deck of the spare part hoisting deck; since the strengthening cylinder is not connected to the next lower deck of the spare part hoisting deck, there is no need to additionally set an installation area for the strengthening cylinder on the next lower deck, ensuring that the occupied area of the next lower deck can be consistent with the actual occupied area of the deck compartment; by optimizing the installation method of the strengthening cylinder, the present invention reduces the weight of the next lower deck, and further reduces the weight of the whole ship.

[0010] Preferably, the lower end of the strengthening cylinder is chamfered to reduce the space occupied by the next lower deckhouse.

[0011] As described above, an installation structure for a spare part hoisting deck and a spare part hoisting base according to the present invention optimizes the shape of the spare part hoisting deck to minimize the idle area of the spare part hoisting deck while meeting the layout requirements of the spare part base, thereby reducing the weight and cost of the spare part hoisting deck; in addition, by optimizing the bottom strengthening structure to separate the strengthening cylinder from the next lower deck, the installation area of the strengthening cylinder on the next lower deck is omitted, thereby reducing the weight of the next lower deck; the weight optimization of the upper and lower decks not only saves steel but also reduces the weight of the whole ship, having high economic benefits. Description of the Drawings

[0012] Figure 1 It is a top view of the spare part hoisting base installed on the traditional spare part hoisting deck.

[0013] Figure 2 It is a top view of the spare part hoisting base installed on the spare part hoisting deck of the first embodiment.

[0014] Figure 3 It is a top view of the spare part hoisting base installed on the spare part hoisting deck of the second embodiment.

[0015] Figure 4 For Figure 3Cross-sectional view taken along line A-A

[0016] Description of reference numerals:

[0017] Deck cabin 01, spare part hoist pedestal 02, bow vertex P, spare part hoist deck 1, basic deck 11, extended deck 12, strengthening cylinder 21, external strengthening gusset plate 22a of the cylinder, internal strengthening gusset plate 22b of the cylinder Detailed implementation manners

[0018] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification

[0019] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear description and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope under which the present invention can be implemented

[0020] The engine room shed is a superstructure with a multi-layer deck structure, on which a spare part hoist for lifting ship spare parts needs to be installed. The spare part hoist is installed on the engine room shed deck (usually the second deck of the engine room shed) required by the general assembly layout drawing through the spare part hoist pedestal 02. For the convenience of subsequent description, the engine room shed deck for installing the spare part hoist in this application is defined as the spare part hoist deck 1; two spare part hoist pedestals 02 (i.e., two spare part hoists) need to be installed on each spare part hoist deck 1, which are respectively arranged at the port side and starboard side of the bow of the spare part hoist deck 1 and are symmetric about the longitudinal center line of the ship

[0021] When arranging each spare part hoist pedestal 02, its center needs to be aligned with the intersection point at the bow corner of the deck cabin 01 below the spare part hoist deck 1 respectively, so as to utilize the bulkhead of the deck cabin 01 to assist in supporting the spare part hoist pedestal 02. Therefore, in addition to the basic deck 11 for closing the top opening of the deck cabin 01 below, the spare part hoist deck also needs to include an additional extended deck to ensure that there is enough area on the spare part hoist deck 1 for arranging the spare part hoist pedestals 02; but the current spare part hoist deck 1 is as Figure 1As shown, it is directly enlarged on the basis of the basic deck 11 (i.e., the ceiling of the deck cabin 01), and there are many idle deck areas. These idle deck areas make the overall weight of the spare part hoisting deck 1 relatively heavy, thus increasing the overall weight of the ship, which is not conducive to reducing the cost of the ship.

[0022] Based on this, the present application provides a new spare part hoisting deck 1, which reduces the idle deck area while meeting the layout requirements of the spare part hoisting base 02 to reduce the overall weight of the spare part hoisting deck 1; as Figure 2 and Figure 3 shown, the spare part hoisting deck 1 includes a basic deck 11 and two extended decks 12 ( Figure 2 and Figure 3 only the extended deck 12 on the port side is shown); among them, the basic deck 11 is the ceiling of the deck cabin 01 below the spare part hoisting deck 1; since the volume of the deck cabin 01 is fixed, the shape and floor area of the ceiling of the deck cabin 01 remain unchanged; the basic deck 11 has two bow vertices P, which are located on the port side and the starboard side respectively; the bow vertex P is the layout center of the spare part hoisting base 02; among them, one extended deck 12 is butted with the basic deck 11 at the bow vertex P on the port side, and the other extended deck 12 is butted with the basic deck 11 at the bow vertex P on the starboard side to jointly form the spare part hoisting deck 1; there are two spare part hoisting base layout areas with a radius of R1 on the spare part hoisting deck 1 (such as the dotted circle area in Figure 2 ), and the centers of the two spare part hoisting base layout areas are the bow vertex P on the port side and the bow vertex P on the starboard side respectively; among them, R1 is determined according to the outer circle radius R of the spare part hoisting base 02 and the distance requirement between the spare part hoisting base 02 and the edge of the spare part hoisting deck 1; since the minimum distance requirement between the installation center of the spare part hoisting base 02 and each position of the edge of the spare part hoisting deck 1 is 2.5R - 3R, therefore, R1 is generally 2.5R - 3R; in this embodiment, R1 = 3R is preferably selected.

[0023] Since 1 / 4 of each spare part hoisting base layout area is located on the basic deck 11, therefore, each extended deck 12 includes at least the remaining 3 / 4 of the spare part hoisting base layout area; in order to avoid excessive idle deck areas on the extended deck 12, the area S2 of the extended deck 12 needs to meet: The extended deck 12 can be an L-shaped deck formed by splicing 3 squares with a side length of R1 as shown in Figure 2 , or a sector deck with a radius of R1 as shown in Figure 3 , or other shaped decks that meet the area requirements; there is no limitation in this regard. In this embodiment, the extended deck 12 is preferably a sector deck with a radius of R1 to ensure the highest deck utilization rate of the extended deck, minimize the area of the entire spare part hoisting deck 1, thereby reducing the steel cost and the weight of the spare part hoisting deck 1, and further reducing the overall weight of the ship.

[0024] As Figure 4 shown, the present invention also provides an installation structure for a spare part hoisting base, including the above-mentioned spare part hoisting deck 1 and a bottom strengthening structure arranged below the spare part hoisting deck 1; the bottom strengthening structure includes a strengthening cylinder 21 fixed to the bottom of the spare part hoisting deck 1 and a strengthening bracket for connecting the spare part hoisting deck 1 and the strengthening cylinder 21; the strengthening bracket includes an external cylinder strengthening bracket 22a and / or an internal cylinder strengthening bracket 22b; the strengthening cylinder 21 is coaxially arranged with the spare part hoisting base 02 for transmitting and dispersing the load transmitted from the spare part hoisting base 02 to avoid tearing of the deck at the spare part hoisting base 02.

[0025] The strengthening cylinder 21 has two installation forms; Form 1: The bottom end of the strengthening cylinder 21 extends downward and is welded to the lower deck of the spare part hoisting deck 1; since 3 / 4 of the bottom surface area of the strengthening cylinder 21 is located outside the deck compartment 01, the lower deck needs to be formed by expanding a part of the deck outward on the basis of the bottom of the deck compartment 01 to ensure that there is enough connection area for the strengthening cylinder 21; Form 2: The strengthening cylinder 21 is connected to the deck compartment bulkhead below the spare part hoisting deck 1, and there is a spacing between the bottom end of the strengthening cylinder 21 and the lower deck of the spare part hoisting deck 1, and this spacing can be determined according to the actual situation. Usually, the spacing H satisfies: H≥0.2m. In this way, there is no need to expand the deck at the bottom of the deck compartment 01, ensuring that the floor area of the lower deck is in the minimum state, thereby reducing the weight and steel consumption of the lower deck and achieving a reduction in the weight and cost of the entire ship, providing a direction for optimizing the reduction of the weight of the entire ship.

[0026] Based on the optimization of the weight of the entire ship, the strengthening cylinder 21 in this embodiment is preferably installed in the second form.

[0027] In order to reduce the occupation of the space inside the deck compartment 01 by the strengthening cylinder 21, the part of the lower end of the strengthening cylinder 21 located inside the deck compartment 01 can be beveled, and the bevel angle (i.e., the angle between the bevel surface and the center line of the strengthening cylinder 21) is generally 30° - 40°; of course, the part of the lower end of the strengthening cylinder 21 located outside the deck compartment 01 can also be beveled, which helps to effectively transmit the downward force of the strengthening cylinder 21 to the bulkhead and can also reduce the weight of the entire strengthening cylinder 21, thereby reducing the weight of the entire ship.

[0028] After the installation of the bottom strengthening structure is completed, a finite element analysis of the spare part hoist under different working conditions needs to be carried out to analyze the stress conditions of the spare part hoisting deck 1 and the bottom strengthening structure. If the stress conditions do not meet the requirements, some or all of the strengthening members in the bottom strengthening structure need to be optimized. The optimization measures include increasing the plate thickness, adjusting the dimensions, and selecting materials with higher strength, etc., until the finite element analysis results meet the requirements.

[0029] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A spare part lifting deck for installing two spare part lifting bases, characterized in that, The spare part lifting deck includes a base deck and two extended decks; the base deck is the ceiling of the deck cabin below the spare part lifting deck; the base deck has two bow vertices P, and the bow vertex P is the layout center of the spare part lifting pedestal. Two extended decks are respectively located at two bow vertices P of the basic deck to form a spare part hoisting deck by docking; the spare part hoisting deck has a spare part hoisting pedestal arrangement area with the corresponding bow vertex P as the center and R1 as the radius at the positions of the two bow vertices P, where R1 is determined according to the outer circle radius of the spare part hoisting pedestal and the distance requirement between the spare part hoisting pedestal and the edge of the spare part hoisting deck; the area S2 of the extended deck satisfies:

2. The spare part suspension deck according to claim 1, characterized in that, The extended deck is a fan-shaped deck.

3. An installation structure of a spare part lifting base, characterized in that, It includes the spare part lifting deck as described in Claim 1 or 2 and a bottom strengthening structure arranged below the spare part lifting deck. The bottom strengthening structure includes a strengthening cylinder fixed to the bottom of the spare part lifting deck and a strengthening bracket for connecting the spare part lifting deck and the strengthening cylinder; the strengthening cylinder is coaxially arranged with the spare part lifting pedestal.

4. The installation structure of a spare part lifting base according to claim 3, characterized in that, The strengthening bracket includes an in-cylinder strengthening bracket and an out-of-cylinder strengthening bracket.

5. The installation structure of a spare part lifting base according to claim 3 or 4, characterized in that, The bottom end of the strengthening cylinder extends downward and is welded to the deck of the layer below the spare part lifting deck.

6. The installation structure of a spare part lifting base according to claim 3 or 4, characterized in that, The strengthening cylinder is connected to the bulkhead of the deck cabin below the spare part lifting deck, and there is a spacing between the bottom end of the strengthening cylinder and the deck of the layer below the spare part lifting deck.

7. The installation structure of a spare part hoisting base according to claim 6, characterized in that, The lower end of the strengthening cylinder is beveled.

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