A kind of combination monorail crane's binding bridge

Abstract

The present application relates to a kind of combination single-track crane's binding bridge, it is related to container ship technical field, it includes the binding bridge main body near ship bow, walkway platform is extended from cabin shed three platform to ship bow direction and is connected with the binding bridge main body, support structure is set in the top walkway platform below, single-track crane transfer system is integrated in the support structure below, walkway platform is simultaneously as container binding platform and single-track crane support platform;Wherein, walkway platform separates container binding operation space and single-track crane goods transfer space in vertical direction, so that both in the different height space of same ship length position simultaneously, to realize 45 feet container from main deck start stacking in the case of certain ship length.The present application is favorable to realize 45 feet container from main deck start stacking to improve loading index, simplify binding operation, reduce spare parts category and ensure operation safety.

Description

Technical Field

[0001] This invention relates to the technical field of container ships, and more specifically to a lashing bridge for a combined monorail crane. Background Technology

[0002] The lashing bridge on a container ship refers to a transverse lifting platform on the deck, where hatch covers and containers on deck can be lashed. The monorail crane on a container ship is a crane mounted on the forward bulkhead of the engine room hangar for transferring spare parts from the engine room. In conventional designs, the monorail crane on the forward bulkhead of the engine room hangar is designed separately from the lashing bridge for container lashing. Figure 1 As shown in the diagram, with a fixed ship length, 45-foot containers cannot be stacked starting from the main deck, but only from the sixth layer of containers. This has a significant impact on the loading capacity of container ships. On the one hand, 45-foot containers cannot be loaded from the first to the fifth layer of containers, so the number of 45-foot containers loaded will be reduced. On the other hand, the stacked 45-foot containers can only be loaded on the sixth layer and above, so the weight of the loaded 45-foot containers is relatively small, which cannot meet the loading requirements of 45-foot heavy containers.

[0003] Currently, ultra-large container ships can stack containers up to 13 layers high on their decks. To prevent containers from falling due to ship movement, the lashing points need to be set as high as possible, typically using lashing bridges four layers high to ensure secure lashing. For better lashing results, lashing bridges usually place lashing eye plates on the top and second-highest lashing platforms, while the lower platforms serve as walkways for personnel. For the monorail cranes on the forward bulkhead of the engine room hangar, they are typically located below the third platform of the engine room hangar, with the hook's distance from the main deck generally sufficient for lifting spare parts from the engine room. Based on the above analysis, the lashing bridges on container ships primarily require the topmost space for container lashing, while the monorail cranes primarily require space above the main deck for transferring spare parts from the engine room. Therefore, combining the lashing bridges and monorail cranes in a combined design can effectively reduce the space occupied by the lashing bridges and monorail cranes within the ship's length, allowing 45-foot containers to be stacked from the main deck while maintaining a fixed ship length, thus improving the loading capacity of 45-foot containers. Summary of the Invention

[0004] This invention addresses the problem of excessive space occupation along the ship's length and the inability to stack 45-foot containers from the main deck in existing container ships due to the separate arrangement of monorail cranes and lashing bridges. It proposes a combined monorail crane and lashing bridge, which achieves simultaneous operation of container lashing and engine room spare parts transfer by functionally reusing and structurally integrating the two in vertical space. This effectively reduces the space occupation along the ship's length, allowing 45-foot containers to be stacked from the main deck, thereby increasing the loading quantity and weight of 45-foot containers.

[0005] To achieve the above objectives, the present invention provides a lashing bridge for a combined monorail, including a lashing bridge body near the bow, a walkway platform extending from the engine room deck platform toward the bow and connected to the lashing bridge body, a support structure disposed below the top walkway platform, and a monorail transfer system integrated below the support structure. The walkway platform serves as both a container lashing platform and a monorail support platform.

[0006] The walkway platform vertically separates the container lashing operation space from the monorail cargo transfer space, allowing both to be carried out simultaneously at different heights within the same ship length position. This enables the stacking of 45-foot containers from the main deck surface to the ship length.

[0007] Preferably, the lashing bridge columns are made of square tubing, with their tops higher than the walkway platform; the lashing bridge columns are installed at the position of each container gap, but the bottom of part of the columns extends to the main deck at intervals of one container.

[0008] Preferably, shear walls are installed between the columns to improve the overall resistance to lateral loads. Three shear walls are arranged on each of the left and right sides of the lashing bridge, for a total of six. The bottom of the shear walls is provided with operating holes for operators to operate the twist locks at the bottom of the first layer of containers from inside the lashing bridge.

[0009] Preferably, the platform enclosure is installed below the bow edge of the tying platform, and a kickboard and railing are installed above the platform. The kickboard is higher than the walkway platform, and the railing includes a top handrail and two middle crossbars. The height of the bottom crossbar from the walkway platform is no more than 230mm, the net distance between the two middle crossbars is no more than 380mm, and the distance between the top of the handrail and the walkway platform is no less than 1000mm. Hooks for storing turnbuckles are installed on the railing posts.

[0010] Preferably, the walkway platform adopts a single-layer platform double-layer binding method, with two layers of binding eye plates set vertically on the same binding platform. The upper layer of eye plates is used to bind the bottom legs of the upper layer container, and the lower layer of eye plates is used to bind the top legs of the lower layer container.

[0011] Preferably, the top-mounted lashing eyeplates are used only for lashing 45-foot containers; lashing eyeplates are installed on the main deck for lashing 40-foot containers, and the lashing eyeplates on the main deck use a single-layer double-inner-lashing method to lash the two layers of containers internally.

[0012] Preferably, the main body of the lashing bridge includes lashing bridge columns, platform cofferdams, shear walls, railings, lashing eye plates, and turnbuckles; the three platforms of the engine room hangar are continuous from the port side to the starboard side and extend aft towards the bow to connect with the main body of the lashing bridge; the extended platforms have reserved passage space, and the platforms within the passage space are coated with anti-slip paint.

[0013] Preferably, the support structure includes a support elbow plate disposed below the walkway platform, the support elbow plate having a spacing along the width of the ship; the support elbow plate provides rigid support to the walkway platform from below, and its bottom is directly connected to the track beam of the monorail transfer system to suspend and support the monorail crane body.

[0014] Preferably, the monorail transfer system includes a track beam and a monorail basket suspended below the track beam. The track beam is continuously arranged from the port side to the starboard side. The distance between the front end of the monorail basket and the front column of the lashing bridge is greater than 100mm, and the distance between the rear end of the monorail basket and the front wall of the engine room canopy is greater than 100mm.

[0015] Preferably, the walkway platform serves as a support platform for the monorail transfer system, reducing the overall structural weight and minimizing the space occupied along the ship's length by reusing structural functions.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: 1. In this invention, the bow is equipped with lashing plates, turnbuckles, railings, etc., for lashing containers stacked in front of the engine room hangar. The bottom space is used for the transfer of engine room spare parts by monorail crane, which greatly reduces the space occupied by the ship's length and enables the stacking of 45-foot containers from the main deck. Compared with the design of separate monorail crane and lashing bridge, this design increases the number of 45-foot containers loaded and the loading weight of the loaded 45-foot containers under the condition of a fixed ship length.

[0017] 2. In this invention, the three platforms of the engine room canopy are continuous on the left and right and extend 2.1m towards the bow to serve as lashing platforms for the lashing bridge. The lashing platforms serve as both support platforms for the monorail crane and walkway platforms for the lashing bridge, effectively reducing the structural weight.

[0018] 3. In this invention, a single-layer platform double-layer binding method is adopted at the top. Compared with the conventional two-layer platform binding, the single-layer platform double-layer binding effectively increases the binding points of the container, ensures the container stacking weight, and concentrates the binding operation on one layer platform, effectively reducing the complexity of the binding operation. 4. In this invention, top-mounted lashing eye plates are used for lashing 45-foot containers, while eye plates on the main deck are used for lashing 40-foot containers. This design avoids the problem of lashing 40-foot containers being too far from the lashing bridge posts, making lashing on the lashing bridge difficult. Considering that 45-foot containers are all high-cube designs, this significantly reduces the design requirements for container lashing optimization and decreases the types of lashing rods and turnbuckles needed. Furthermore, the lashing eye plates on the main deck effectively utilize the space between the container and the lashing bridge posts, effectively ensuring the lashing of 40-foot containers and improving loading convenience.

[0019] 5. The support elbow plate provided below the top lashing platform in this invention can not only support the top walkway platform of the lashing bridge, but also support the suspended monorail, effectively saving the weight of the monorail and the lashing bridge, and greatly reducing the empty weight of the hull structure.

[0020] 6. In this invention, the monorail suspended below the top support elbow plate is used for the transfer of spare parts in the engine room. The cargo transfer space of the monorail and the container lashing operation space can be effectively separated by the top lashing platform, which ensures both the effectiveness of container cargo lashing and the transfer of cargo in the engine room. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the conventional lashing bridge arrangement for the front wall of the cabin hangar. Figure 2 This is a schematic diagram of the binding bridge arrangement of the combined monorail gantry in the binding bridge of the present invention; Figure 3 This is a front view of the tying bridge for the combined monorail gantry crane in the present invention; Figure 4 This is a schematic diagram showing the connection between the support elbow plate and the monorail in the binding bridge of the combined monorail crane according to the present invention.

[0022] Attached reference numerals: 1. Cabin canopy; 2. Support elbow plate; 3. Monorail track beam; 4. Monorail basket; 5. Binding eye plate; 6. Binding bridge column; 7. Platform enclosure; 8. Railing; 9. Turnbuckle; 10. Operating hole; 11. Shear wall; 12. Walkway platform; 13. Track beam; 14. Monorail. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a combined monorail lashing bridge, whose overall structure consists of three interconnected and collaborative parts: the lashing bridge main body near the bow, the top walkway platform 12 extending rearward from the three platforms of the engine room hangar 1 and its supporting structure, and the monorail transfer system integrated below the supporting structure. Compared with the conventional design that separates the monorail 14 on the forward wall of the engine room hangar 1 from the container lashing bridge, this invention reuses and integrates the two in vertical space, enabling 45-foot containers to be stacked from the main deck surface under a given ship length, thereby effectively increasing the loading quantity and weight of 45-foot containers.

[0025] The main body of the lashing bridge near the bow consists of lashing bridge columns 6, platform cofferdam 7, shear wall 11, railings 8, lashing eye plates 5, and turnbuckles 9, used to secure containers stacked in front of the engine room shed 1. The lashing bridge columns 6 are made of square tubing with an outer diameter of 200x200mm, and their tops are approximately 1.2m higher than the top walkway platform 12 to provide sufficient installation height and structural strength for the top lashing devices. In terms of column arrangement, columns are placed at the intervals between each container, but not all columns extend downwards to the main deck. Instead, some columns extend to the main deck at intervals of one container, thus reducing unnecessary structural weight while meeting structural support requirements.

[0026] Shear walls 11 are installed between the columns to improve the overall resistance to lateral loads. The shear walls 11 are arranged in a centralized manner, with three walls on each side of the lashing bridge, for a total of six shear walls 11, forming a symmetrical and stable shear-resistant structure. At the same time, operating holes 10 are reserved at the bottom of the shear walls 11. The function of the operating holes 10 is to provide operators with space to operate the bottom twist locks of the first layer of containers from inside the lashing bridge, ensuring that the securing and unlocking operations of the bottom containers can be carried out smoothly.

[0027] A platform enclosure 7 is installed below the bow edge of the tying platform to prevent items from falling. A kickboard and railing 8 are installed above the platform to ensure personnel safety. The kickboard is 150mm higher than the walkway platform 12. The railing 8 includes a top handrail and two middle crossbars. The bottom crossbar is no more than 230mm higher than the walkway platform 12, the net distance between the two middle crossbars is no more than 380mm, and the top of the handrail is no less than 1000mm higher than the walkway platform 12. The above dimensions meet personnel safety protection standards. In addition, hooks for storing turnbuckles 9 are installed on the railing 8 posts, so that the turnbuckles 9 can be directly hung on the hooks when not in the tying operation state, making them easy to access and preventing loss.

[0028] The three platforms of the engine room canopy 1 remain continuous from port to starboard and extend approximately 2.1m aft towards the bow, reliably connecting to the lashing bridge pillar 6 at the bow. This extension also serves as the lashing bridge walkway platform 12, thus integrating the originally separate engine room canopy 1 platform with the lashing bridge platform into one unit. The lashing walkway platform 12 has a reserved passageway space with a width of 600mm and a height of 2000mm to meet the passage needs of maintenance personnel and lashing workers. Furthermore, the platform within this walkway space is coated with anti-slip paint to prevent personnel from slipping in rolling or wet conditions. This extended platform not only serves as the lashing bridge walkway platform 12 but also as a support platform for the monorail system. This reuse of structural functions effectively reduces the overall structural weight and minimizes the space occupied along the ship's length.

[0029] Supporting elbow plates 2 are installed below the top lashing platform 12. These elbow plates are spaced approximately 2.5m apart along the ship's width and have a dual structural design: firstly, they provide rigid support to the top lashing platform 12 from below, ensuring sufficient strength and stability when bearing container lashing loads; secondly, the bottom of the elbow plates 2 is directly connected to the track beam 13 of the monorail gantry 14, suspending and supporting the monorail gantry crane body. This allows the monorail system to be directly integrated with the lashing bridge's support structure without requiring a separate suspension structure, significantly reducing the structural weight of both the monorail gantry 14 and the lashing bridge, and substantially lowering the ship's empty weight. Through the cooperation of the supporting elbow plates 2 and the top lashing platform 12, the cargo transfer space of the monorail gantry 14 and the container lashing operation space are effectively separated below and above the platform, ensuring both the effectiveness of container lashing and the independence and safety of engine room spare parts transfer operations.

[0030] In the specific implementation of the container lashing system, the top walkway platform 12 adopts a single-layer platform with double-layer lashing. That is, two layers of lashing eye plates 5 are set vertically on the same lashing platform. The upper layer of eye plates is used to lash the bottom legs of the container above, while the lower layer of eye plates is used to lash the top legs of the container below. This double-layer lashing design not only effectively increases the height of the lashing points, ensuring the container's stacking capacity and anti-tipping stability, but also significantly reduces the complexity of the lashing operation and improves work efficiency because all lashing operations are concentrated on one platform, eliminating the need for operators to climb and move between different platforms.

[0031] The top-mounted lashing eye plate 5 is only used for lashing 45-foot containers, and does not take into account the loading conditions of 40-foot containers. This is because the distance between 40-foot containers and lashing bridge posts 6 is relatively far, and it would be more difficult to operate if lashing is done on the top platform. At the same time, since 45-foot containers are all high-cube designs, using the top eye plate specifically for lashing 45-foot containers can eliminate the need to consider the complex working conditions of mixed stacking of high and low containers, thereby reducing the number of working conditions that need to be considered for container lashing optimization on the lashing bridge. Correspondingly, it reduces the types of lashing rods and turnbuckles 9, and simplifies spare parts management and inventory.

[0032] For the lashing of 40-foot containers, lashing eyeplates 5 are directly installed on the main deck. The lashing method is a single-layer double inner lashing, meaning that the two layers of containers are lashed together using the eyeplates on the main deck. This design makes full use of the gap space between the 40-foot containers and the lashing bridge posts 6, transferring the lashing operation from the lashing bridge platform to the main deck. Compared to lashing 40-foot containers that are farther apart on the lashing bridge, the main deck has a more open operating space, making the lashing operation more convenient and labor-saving. At the same time, since the lashing of 40-foot containers is independent of the top platform, the top platform can focus on the lashing of 45-foot containers, and the two do not interfere with each other.

[0033] The monorail system includes a track beam 13 and a monorail hoist basket 4 suspended below the track beam 13. The track beam 13 is continuously arranged from port to starboard to ensure that the monorail hoist 14 can cover the engine room spare parts transfer needs across the entire beam of the ship. The monorail hoist basket 4 suspended below the track beam 13 maintains a safe clearance from the surrounding structures during its arrangement: the distance between the front end of the basket and the front column of the lashing bridge is greater than 100mm, and the distance between the rear end of the basket and the front wall of the engine room canopy 1 is greater than 100mm, thereby avoiding mechanical interference between the monorail hoist 14 and the front wall of the engine room canopy 1 and the lashing bridge column 6 during the monorail hoist 14's operation along the track and during lifting and transfer. The monorail crane 14 is mainly used for the transfer of engine room spare parts in the space above the main deck. The lifting and moving range of its hook relies on the space between the front wall of the engine room canopy 1 and the lashing bridge. The presence of the top walkway platform 12 provides the monorail crane 14 with shelter and separation above, so that the transfer of spare parts below and the lashing of containers above can be carried out simultaneously in the same length position and at different heights.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tying bridge for a combined monorail gantry, characterized in that, It includes a lashing bridge body near the bow, a walkway platform extending from the engine room deck platform three towards the bow and connected to the lashing bridge body, a support structure located below the top walkway platform, and a monorail transfer system integrated below the support structure. The walkway platform also serves as a container lashing platform and a monorail support platform. The walkway platform vertically separates the container lashing operation space from the monorail cargo transfer space, allowing both to be carried out simultaneously at different heights within the same ship length position. This enables the stacking of 45-foot containers from the main deck surface to the ship length.

2. The binding bridge of the combined monorail gantry according to claim 1, characterized in that, The lashing bridge columns are made of square tubing, with their tops higher than the walkway platform. The lashing bridge columns are installed at the position of each container gap, but the bottom of part of the columns extends to the main deck at intervals of one container.

3. The binding bridge of the combined monorail gantry according to claim 2, characterized in that, Shear walls are installed between the columns to improve the overall resistance to lateral loads. Three shear walls are arranged on each of the left and right sides of the lashing bridge, for a total of six. The bottom of the shear walls is reserved with operating holes for operators to operate the twist locks at the bottom of the first layer of containers from inside the lashing bridge.

4. The binding bridge of the combined monorail gantry according to claim 2, characterized in that, The platform enclosure is installed below the bow edge of the tying platform. A kickboard and railing are installed above the platform. The kickboard is higher than the walkway platform. The railing includes a top handrail and two middle crossbars. The bottom crossbar is no more than 230mm above the walkway platform. The net distance between the two middle crossbars is no more than 380mm. The top of the handrail is no less than 1000mm above the walkway platform. Hooks for storing turnbuckles are installed on the railing posts.

5. The binding bridge of the combined monorail gantry according to claim 1, characterized in that, The walkway platform adopts a single-layer platform with double-layer binding. On the same binding platform, two layers of binding eye plates are set vertically. The upper layer of eye plates is used to bind the bottom legs of the container of the upper layer, and the lower layer of eye plates is used to bind the top legs of the container of the lower layer.

6. The binding bridge of the combined monorail gantry according to claim 5, characterized in that, The top-mounted lashing eyeplates are only used for lashing 45-foot containers; lashing eyeplates on the main deck are used for lashing 40-foot containers, and the lashing eyeplates on the main deck use a single-layer double-inner-lashing method to lash the two layers of containers internally.

7. The binding bridge of the combined monorail gantry according to claim 1, characterized in that, The main body of the lashing bridge includes lashing bridge columns, platform cofferdam, shear wall, railings, lashing eye plates, and turnbuckles; the three platforms of the engine room canopy are continuous from the port side to the starboard side and extend aft towards the bow to connect with the main body of the lashing bridge; the extended platforms have reserved passage space, and the platforms within the passage space are coated with anti-slip paint.

8. The binding bridge of the combined monorail gantry according to claim 1, characterized in that, The support structure includes a support elbow plate disposed below the walkway platform, the support elbow plate having a spacing along the width of the ship; the support elbow plate provides rigid support to the walkway platform from below, and its bottom is directly connected to the track beam of the monorail transfer system to suspend and support the monorail crane body.

9. The binding bridge of the combined monorail gantry according to claim 1, characterized in that, The monorail transfer system includes a track beam and a monorail basket suspended below the track beam. The track beam is continuously arranged from the port side to the starboard side. The distance between the front end of the monorail basket and the front column of the lashing bridge is greater than 100mm, and the distance between the rear end of the monorail basket and the front wall of the engine room canopy is greater than 100mm.

10. The binding bridge of the combined monorail gantry according to claim 1, characterized in that, The walkway platform serves as a support platform for the monorail transfer system. By reusing structural functions, it reduces the overall weight of the structure and minimizes the space occupied along the ship's length.

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