A component repair and transfer system and transfer method for the cargo hold of a container ship

Abstract

The present invention relates to a component maintenance and transfer system and a transfer method for the cargo hold of a container ship, including a first cargo hold platform opening, a flipping platform arranged on the first cargo hold platform opening, which is of the hinge flap type; a first protective railing is arranged at the front edge of the flap platform, and the railing has two layers; a second cargo hold platform opening is arranged in the area of each cargo hold platform close to the ship's center; a grille cover is arranged on the second cargo hold platform opening; a second protective railing is arranged on the four sides of the second cargo hold platform opening; a special small hatch cover for the lifting opening is arranged on the hatch coaming; a first lifting device is arranged directly above the second cargo hold platform opening and the special small hatch cover for the lifting opening; a second lifting device is arranged above the cargo hold fan motor; a third lifting device is arranged above the refrigerated container motor; a transfer device is arranged above the cargo hold platform. The present invention realizes four functions through reasonable layout, making the disassembly, assembly and lifting operations of components such as the refrigerated container motor and the fan motor convenient and safe.

Description

Technical Field

[0001] The present invention relates to a component maintenance and transfer system and a transfer method for large ships, and particularly to a component maintenance and transfer system and a transfer method for the cargo hold of a container ship. Background Art

[0002] At present, the demand for transporting perishable goods in the shipping market is increasing. There are more and more refrigerated containers loaded in the cargo hold of container ships, so there are more and more fans arranged in the cargo hold. Shipowners also have an increasing demand for component maintenance. A refrigeration system motor is installed at the rear end of the refrigerated container and needs to be repaired and maintained irregularly. When high and low containers are mixedly loaded, the motor of a certain layer of refrigerated containers may be exactly at the same height as the cargo hold platform. Due to the small distance between the motor and the cargo hold platform, the motor cannot be disassembled. At the same time, the refrigerated cargo hold fan motor also needs to be repaired and maintained irregularly, and in some cases, components need to be directly lifted outside the cargo hold for repair. Therefore, how to safely and effectively complete the above maintenance work has become an important concern of shipowners. Summary of the Invention

[0003] The present invention aims to provide a component maintenance and transfer system and a transfer method for the cargo hold of a container ship, which are used to facilitate the disassembly of the motor. On the premise of ensuring the structural strength, an opening needs to be provided at the front edge of the cargo hold platform where the refrigerated container is arranged; after setting the opening, it will affect the passage of the cargo hold platform. Considering processing the cut plate of the platform opening into a flip platform, when there is no motor disassembly operation, the flip platform is placed horizontally as a passage. During the operation, the flip platform is opened, and a detachable railing is set to ensure the safety of passing personnel and not affect the disassembly operation of the cold box motor. Considering setting a hoisting device above the refrigerated cargo hold fan motor to assist in disassembly. A detachable steel wire rope is set and equipped with pulleys to facilitate the transfer of the motor to the lifting port position. In addition, a lifting port that is consistent from top to bottom needs to be considered on each platform to facilitate directly lifting the components outside the cargo hold for repair.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A component maintenance and transfer system for the cargo hold of a container ship, comprising:

[0006] A first cargo hold platform opening, obtained by cutting the front edge of the cargo hold platform where the refrigerated container is arranged, used for the maintenance operation of the refrigerated container motor, and the two ends of the opening are transitioned by arcs to avoid stress concentration;

[0007] A flip platform, arranged on the first cargo hold platform opening, adopting a hinge flap type, and the surface of the flip platform is flush with the surface of the cargo hold platform;

[0008] The first protective railing is set at the front edge of the tipping platform. The railing has two layers. The upper layer uses ordinary water and gas pipes, which are stronger than the steel wire ropes used in the conventional layout. The lower layer uses steel wire ropes, and both are of detachable type;

[0009] The second cargo hold platform opening is set in the area near the ship's center on each cargo hold platform, and is used for the hoisting operation of components such as refrigerated container motors and fan motors;

[0010] The grille cover is set on the second cargo hold platform opening and adopts a pull-out and translation type. When hoisting components, it is pulled to the front end to open the opening, and when there is no operation, it is pushed to the storage position to close the opening;

[0011] The second protective railing is set on the four sides of the second cargo hold platform opening. Three sides use fixed railings to prevent operators from falling when the opening is opened, and one side uses a detachable small chain;

[0012] The special small hatch cover for the lifting opening is set on the hatch coaming top and is directly above the second cargo hold platform opening. It is opened during component hoisting operations and closed when there is no operation;

[0013] The first lifting device is fixedly set directly above the second cargo hold platform opening and the special small hatch cover for the lifting opening, on the reverse side of the lashing bridge platform, and is used to directly hoist the refrigerated container motor and fan motor components out of the cargo hold;

[0014] The second lifting device is set above the cargo hold fan motor and is used for the maintenance of the cargo hold fan motor;

[0015] The third lifting device is set above the cold box motor and is used for the maintenance of the cold box motor;

[0016] The transfer device is set above the cargo hold platform and is used to transfer the cargo hold fan motor or the cold box motor to the vicinity of the second cargo hold platform opening.

[0017] Furthermore, multiple lightening holes are set on the plate of the tipping platform to reduce weight and achieve lightweight design. A support plate is set to connect with the hull structure and ordinary steel plates are used.

[0018] Furthermore, the tipping platform includes hinge plates and eye plates, and ordinary steel plates are used.

[0019] Furthermore, each hinge plate and eye plate of the tipping platform are connected by pin shafts, marine tongue-and-groove pins and thin steel wires. The pin shafts and marine tongue-and-groove pins are made of stainless steel, and the thin steel wires need to be galvanized.

[0020] Furthermore, the first protective railing is provided with a connecting plate, which is fixed on the hull structure or railing posts, and ordinary steel plates are used.

[0021] Further, the upper railing of the first protective railing is connected to the connecting plate by bolts, nuts and washers, and the bolts, nuts and washers are made of stainless steel.

[0022] Further, the lower railing of the first protective railing is connected to the connecting plate by shackles, turnbuckles, thimbles and wire rope clips.

[0023] Further, the grille cover adopts a round steel frame, its translation range is controlled by a limit block, and a fixing device is provided.

[0024] Further, the fixing device includes nuts and small chains, which are made of stainless steel.

[0025] Further, the upper railing of the second protective railing is a common water gas pipe, the lower railing is round steel, and railing posts are provided.

[0026] Further, the small chain of the second protective railing is fixed to the railing post by a hook.

[0027] Further, the special small hatch cover for the lifting opening is of the weathertight hinge type.

[0028] Further, the first lifting device includes an eye plate, shackles, pulleys and a lifting rope. The eye plate is installed on the reverse side of the lashing bridge platform, the fixed pulley is connected to the eye plate, the lifting rope is wound around the fixed pulley and the movable pulley, and a shackle is provided at the end of the movable pulley.

[0029] Further, the second lifting device includes a portable lifting eye plate, supporting angle steel, a portable ladder and a portable chain block. The supporting angle steel is supported on the hull structure, the portable lifting eye plate is arranged on the supporting angle steel, the portable ladder is supported on the supporting angle steel during operation, and the portable chain block is hung on the portable lifting eye plate.

[0030] Further, the third lifting device includes a portable lifting eye plate, a portable lifting seat, wing nuts, marine small chains, a portable ladder and a portable chain block. The portable lifting seat is fixed to the bolt hole of the hull structure by wing nuts, the portable lifting eye plate is arranged on the portable lifting seat, the wing nuts and the portable lifting seat are connected by marine small chain 1, the portable ladder is supported on the hull structure during operation, and the portable chain block is hung on the portable lifting eye plate.

[0031] Further, the transfer device includes an eye plate, supporting angle steel, a detachable wire rope, transfer pulleys and a portable ladder. The cargo hold fan motor or the cold box motor is transported to the vicinity of the opening of the second cargo hold platform through the detachable wire rope and the transfer pulleys, and the detachable wire rope is installed on the fixed eye plate through the portable ladder.

[0032] A method for repairing and transporting components of a container ship cargo hold, using the above-mentioned component repair and transport system for a container ship cargo hold, includes the following steps:

[0033] S1. Install a portable ladder at the position of the cold box motor or the fan motor that needs to be repaired, and install the second or third lifting device through the portable ladder.

[0034] S2. Install a portable ladder at the platform where the cold box motor or the fan motor that needs to be repaired is located, and install the transfer device through the portable ladder.

[0035] S3. Transfer the cold box motor or the fan motor to the vicinity of the opening of the second cargo hold platform through the transfer device.

[0036] S4. Transfer the cold box motor or the fan motor out of the cargo hold through the third lifting device.

[0037] The beneficial effects of the present invention compared with the prior art are as follows:

[0038] 1. The component repair and transfer system of the present invention integrates the repair layout of the cold box motor, the repair layout of the fan motor, the layout of the motor transfer device, and the layout of the motor lifting device, realizing four functions.

[0039] 2. By reasonably setting the cargo hold opening, the flipping platform, the protective railing, the grille cover, and the lifting device, etc., the disassembly, assembly, and lifting operations of components such as the refrigerated container motor and the fan motor are convenient and safe, greatly improving the efficiency and safety of the crew's operations, avoiding the occurrence of safety accidents, and realizing the reuse of cutting materials, greatly improving the steel plate utilization rate and saving the construction cost.

[0040] 3. The top of the railing provided at the front edge of the flipping platform adopts a detachable ordinary water gas pipe, which is stronger and safer than the steel wire rope used in the current conventional layout.

[0041] 4. On the route for transferring components out of the cargo hold, the components do not need to be manually carried, and the opening positions of each layer of the platform in the cargo hold and the special small hatch covers of the lifting ports are the same. The components can be directly lifted out of the cargo hold without changing transfers, greatly saving manpower.

[0042] 5. The adoption of a portable lifting device (including a portable lifting seat and a portable chain block) avoids arranging a lifting device at each motor position, which can not only meet the requirements for the disassembly and assembly operations of the refrigerated container motor but also meet the requirements for the disassembly and assembly operations of the fan motor, simplifying the system configuration.

[0043] 6. The fixed lifting device adopts a simple combination of a movable pulley and a fixed pulley with reasonable design, with low cost and convenient and labor-saving operation for the crew.

[0044] 7. The flipping platform adopts a lightweight design, which is convenient for the crew to operate. Description of the Drawings

[0045] Figure 1Schematic diagram of the overall layout of the component repair and transfer system for the cargo hold of a container ship according to the present invention;

[0046] Figure 2 Schematic diagram of the typical planar layout of the component repair and transfer system for the cargo hold of a container ship according to the present invention;

[0047] Figure 3 Schematic top view of the structure of the flipping platform according to the present invention;

[0048] Figure 4 is Figure 3 Cross-sectional view taken along A-A in

[0049] Figure 5 is Figure 4 Schematic diagram of the hinge structure in

[0050] Figure 6 Schematic diagram of the structure of the first protective railing according to the present invention;

[0051] Figure 7 Schematic diagram of the structure of the first connecting plate;

[0052] Figure 8 Schematic diagram of the structure of the second connecting plate;

[0053] Figure 9 Schematic diagram of the structure of the third connecting plate;

[0054] Figure 10 Schematic diagram of the structure of the grille cover and the second protective railing according to the present invention;

[0055] Figure 11 is Figure 10 Cross-sectional view taken along B-B in

[0056] Figure 12 Schematic cross-sectional view of the first lifting device according to the present invention;

[0057] Figure 13 Schematic side view of the second lifting device according to the present invention;

[0058] Figure 14 Schematic side view of the third lifting device according to the present invention;

[0059] Figure 15 Schematic diagram of the lifting seat structure in the lifting device;

[0060] Figure 16 is Figure 15 Top view of

[0061] Figure 17 Operating schematic diagram of the transfer device according to the present invention;

[0062] In the figure: 1. First cargo hold platform opening; 2. Tipping platform; 3. First protective railing; 4. Second cargo hold platform opening; 5. Grille cover; 6. Second protective railing; 7. First lifting device; 8. Second lifting device; 9. Special small hatch for lifting opening; 10. Third lifting device; 11. Transfer device; 21. Platform cutting steel plate; 22. Lightening hole; 23. Supporting bracket; 24. Hinge; 241. Hinge plate; 242. Eye plate; 243. Pin shaft; 244. Marine tongue bolt; 245. Fine steel wire; 31. Ordinary water gas pipe; 32. First connecting plate; 33. Second connecting plate; 34. Steel wire rope; 35. Third connecting plate; 36. Marine shackle; 37. Turnbuckle; 38. Thimble; 39. Steel wire clip; 40. Railing post; 41. Bolt; 42. Nut; 43. Flat washer; 51. Round steel frame; 52. Limit block; 53. Small chain; 54. Nut; 61. Removable small chain; 62. Hook; 63. Top water gas pipe; 64. Intermediate round steel; 65. Railing post; 71. Eye plate; 72. Fixed pulley; 73. Lifting rope; 74. Movable pulley; 75. Shackle; 81. Eye plate; 82. Supporting angle steel; 83. Portable chain block; 84. Portable ladder; 101. Eye plate; 102. Portable lifting seat; 103. Wing nut; 104. Marine small chain; 105. Transfer pulley; 106. Fan motor; 107. Lashing bridge platform; 108. Cold box motor. Detailed implementation manners

[0063] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it shall not be construed as a limitation to the present invention.

[0064] Please refer to Figures 1 to 17As shown in the figure, in an embodiment of the present invention, a component repair and transfer system for a cargo hold of a container ship is shown, including a first cargo hold platform opening 1, a flipping platform 2, a first protective railing 3, a second cargo hold platform opening 4, a grille cover 5, a second protective railing 6, a first lifting device 7, a second lifting device 8, a special hatch cover for the lifting opening 9, a third lifting device 10, a transfer device 11, a platform cutting steel plate 21, a lightening hole 22, a supporting bracket 23, a hinge 24, a hinge plate 241, an eye plate 242, a pin shaft 243, a marine tongue bolt 244, a fine steel wire 245, a common water and gas pipe 31, a first connecting plate 32, a second connecting plate 33, a steel wire rope 34, a third connecting plate 35, a marine shackle 36, a turnbuckle 37, a thimble 38, a steel wire rope clip 39, a railing post 40, a bolt 41, a nut 42, a flat washer 43, a round steel frame 51, a limit block 52, a small chain 53, a nut 54, a detachable small chain 61, a hook 62, a water and gas pipe 63, a round steel 64, a railing post 65, an eye plate 71, a fixed pulley 72, a lifting rope 73, a movable pulley 74, a shackle 75, an eye plate 81, a supporting angle steel 82, a portable chain block 83, a portable ladder 84, an eye plate 101, a portable lifting seat 102, a wing nut 103, a marine small chain 104, and a transfer pulley 105.

[0065] The flipping platform 2 and the first protective railing 3 are arranged on the first cargo hold platform opening 1.

[0066] The grille cover 5 and the second protective railing 6 are arranged on the second cargo hold platform opening 4.

[0067] The flipping platform 2 is made of a platform cutting steel plate 21, provided with lightening holes 22, supported by a supporting bracket 23 connecting to the hull structure, and provided with a hinge 24. The main accessories include a hinge plate 241, an eye plate 242, a pin shaft 243, a marine tongue bolt 244, and a fine steel wire 245.

[0068] The upper railing of the first protective railing 3 is a common water and gas pipe 31. One end is connected to the railing post 40 through a bolt 41, a nut 42, and a flat washer 43 to make the first connecting plate 32, and the other end is connected to the hull structure through a bolt 41, a nut 42, and a flat washer 43 to make the second connecting plate 33.

[0069] The lower railing of the first protective railing 3 is a steel wire rope 34. One end is connected to the railing post 40 through a marine shackle 36, a thimble 38, and a steel wire rope clip 39, and the other end is connected to the hull structure through a marine shackle 36, a turnbuckle 37, a thimble 38, a steel wire rope clip 39, and a third connecting plate 35.

[0070] The grille cover 5 is made of a round steel frame 51, provided with limit blocks 52 to control its working range, and fixed by a small chain 53 and a nut 54.

[0071] The upper railing on three sides of the second protective railing 6 is made of a water gas pipe 63, and one side is a detachable small chain 61, which is fixed on the railing post 65 through a hook 62.

[0072] The lower railing on three sides of the second protective railing 6 is made of round steel 64.

[0073] The relative position of the special small hatch cover 9 for the lifting opening is consistent with the opening 4 of the second cargo hold platform, and it is of the weathertight hinge type.

[0074] The eye plate 71 of the first lifting device 7 is installed on the reverse side of the lashing bridge platform 107. The fixed pulley 72 is connected to the eye plate 71. The lifting rope 73 is wound around the fixed pulley 72 and the movable pulley 74, and a shackle 75 is arranged at the end of the movable pulley 74.

[0075] The second lifting device 8 is arranged above the fan motor 106. The support angle steel 82 is supported on the hull structure. The eye plate 81 is arranged on the support angle steel 82. During operation, the portable ladder 84 is supported on the support angle steel 82, and the portable chain hoist 83 is hung on the eye plate 81; it is used for the maintenance of the cargo hold fan motor.

[0076] The third lifting device 10 is arranged above the cold box motor. The portable lifting seat 102 is fixed on the bolt hole of the hull structure through a wing nut 103. The eye plate 101 is arranged on the lifting seat 102. The wing nut 103 and the portable lifting seat 102 are connected through a marine small chain 104. During operation, the portable ladder 84 is supported on the hull structure, and the portable chain hoist 83 is hung on the eye plate 101; it is used for the maintenance of the cold box motor.

[0077] The transfer device 11 is arranged above the cargo hold platform. The cargo hold fan motor 106 or the cold box motor 108 is transferred to the vicinity of the opening 4 of the second cargo hold platform through a detachable wire rope 34 and a transfer pulley 105. The detachable wire rope 34 is installed on a fixed eye plate through the portable ladder 84. It is used to transfer the cargo hold fan motor or the cold box motor to the vicinity of the opening of the second cargo hold platform.

[0078] Furthermore, in a preferred embodiment, the support gusset plate 23, the hinge plate 241 and the eye plate 242 are made of ordinary steel plates.

[0079] Furthermore, in a preferred embodiment, the pin shaft 243 and the marine tongue bolt 244 are made of stainless steel.

[0080] Furthermore, in a preferred embodiment, the first connecting plate 32, the second connecting plate 33 and the third connecting plate 35 are made of ordinary steel plates.

[0081] Furthermore, in a preferred embodiment, the bolt 41, the nut 42, the flat washer 43, the small chain 53, the nut 54, the wing nut 103 and the marine small chain 104 are made of stainless steel.

[0082] A method for repairing and transporting components in the cargo hold of a container ship, using the above-mentioned component repair and transportation system for the cargo hold of a container ship, includes the following steps:

[0083] S1. Install a portable ladder at the position of the cold box motor or the fan motor to be repaired, etc., and install the second or third lifting device through the portable ladder;

[0084] S2. Install a portable ladder at the platform where the cold box motor or the fan motor to be repaired, etc., is located, and install the transfer device through the portable ladder;

[0085] S3. Transport the cold box motor or the fan motor, etc., to the vicinity of the opening of the second cargo hold platform through the transfer device;

[0086] S4. Transport the cold box motor or the fan motor, etc., out of the cargo hold through the third lifting device.

[0087] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustration content of the present invention should be included in the protection scope of the present invention.

Claims

1. A component repair and transfer system for the cargo hold of a container ship, characterized in that Including: The first cargo hold platform opening is obtained by cutting the front edge of the cargo hold platform at the position where the refrigerated container is arranged, and the two ends of the opening are transitioned with arcs to avoid stress concentration; The flipping platform is arranged on the first cargo hold platform opening and adopts the hinge flap type, and the surface of the flipping platform is flush with the surface of the cargo hold platform; a plurality of lightening holes are arranged on the flipping platform to reduce the weight and achieve lightweight design, and a support plate is arranged to connect with the hull structure. The support plate is made of ordinary steel plate, and each hinge plate and eye plate of the flipping platform are connected by a pin shaft, a marine tongue plug and a fine steel wire. The pin shaft and the marine tongue plug are made of stainless steel, and the fine steel wire needs to be galvanized; The first protective railing is arranged at the front edge of the flap platform. The railing has two layers. The upper layer is made of ordinary water gas pipe, and the lower layer is made of steel wire rope, both of which adopt the detachable type; the first protective railing is provided with a connecting plate and fixed on the hull structure or railing post, made of ordinary steel plate, and the upper railing is connected with the connecting plate through bolts, nuts and washers. The bolts, nuts and washers are made of stainless steel, and the lower railing is connected with the connecting plate through shackles, turnbuckles, thimbles and wire rope clips; The second cargo hold platform opening is arranged in the area of each cargo hold platform close to the ship center; The grille cover is arranged on the second cargo hold platform opening and adopts the pulling and translating type; the grille cover adopts a round steel frame, and its translation range is controlled by a limit block, and a fixing device is arranged. The fixing device includes a nut and a small chain, made of stainless steel; The second protective railing is arranged on the four sides of the second cargo hold platform opening. Three sides adopt fixed railings, and one side adopts a detachable small chain; the upper railing of the second protective railing is an ordinary water gas pipe, and the lower railing is a round steel, and railing posts are arranged. The small chain is fixed on the railing post through a hook; The lifting port small hatch cover is arranged on the hatch coaming top and is directly above the second cargo hold platform opening; the lifting port small hatch cover is of the weathertight hinge type; The first lifting device is fixedly arranged directly above the second cargo hold platform opening and the lifting port small hatch cover, on the reverse side of the lashing bridge platform, and is used to directly lift the refrigerated container motor and fan motor components out of the cargo hold; the first lifting device includes an eye plate, a shackle, a pulley and a lifting rope; the eye plate is installed on the reverse side of the lashing bridge platform, the fixed pulley is connected to the eye plate, the lifting rope is wound around the fixed pulley and the movable pulley, and a shackle is arranged at the end of the movable pulley; The second lifting device is arranged above the cargo hold fan motor and is used for the maintenance of the cargo hold fan motor; the second lifting device includes a portable lifting eye plate, a support angle steel, a portable ladder and a portable chain block. The support angle steel is supported on the hull structure, the portable lifting eye plate is arranged on the support angle steel, the portable ladder is supported on the support angle steel during operation, and the portable chain block is hung on the portable lifting eye plate; The third lifting device is arranged above the maintenance area of the refrigerated container motor for the maintenance of the cold box motor. The third lifting device includes a portable lifting eye plate, a portable lifting seat, a wing nut, a marine small chain, a portable ladder and a portable chain block. The portable lifting seat is fixed on the bolt hole of the hull structure through the wing nut. The portable lifting eye plate is arranged on the portable lifting seat. The wing nut and the portable lifting seat are connected by the marine small chain. During operation, the portable ladder is supported on the hull structure, and the portable chain block is hung on the portable lifting eye plate. The transfer device is arranged above the cargo hold platform and is used to transfer the cargo hold fan motor or the cold box motor to the vicinity of the opening of the second cargo hold platform. The transfer device includes an eye plate, a support angle steel, a detachable steel wire rope, a transfer pulley and a portable ladder. The cargo hold fan motor or the cold box motor is transferred to the vicinity of the opening of the second cargo hold platform through the detachable steel wire rope and the transfer pulley. The detachable steel wire rope is installed on the fixed eye plate through the portable ladder.

2. A method for component repair and transfer in the cargo hold of a container ship, using the component repair and transfer system for the cargo hold of a container ship described in claim 1, characterized in that, It includes the following steps: S1. Install a portable ladder at the position of the cold box motor or the fan motor to be repaired, and install the second or third lifting device through the portable ladder. S2. Install a portable ladder at the platform where the cold box motor or the fan motor to be repaired is located, and install the transfer device through the portable ladder. S3. Transfer the cold box motor or the fan motor to the vicinity of the opening of the second cargo hold platform through the transfer device. S4. Transfer the cold box motor or the fan motor out of the cargo hold through the third lifting device.

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