A transfer platform assembly, control method and container crane

Abstract

The application provides a transfer platform assembly, a control method and a container crane. The transfer platform assembly comprises a moving platform and a fixed platform. The moving platform is arranged on a contact beam and can reciprocate between a sea side and a land side of the contact beam. The fixed platform is arranged on a sea side door frame lower cross beam and / or a land side door frame lower cross beam. The moving platform and the fixed platform are each provided with at least one. A first trolley is used to move a container between a ship and the moving platform or between the ship and the fixed platform. A second trolley is used to move the container between an AGV and the moving platform or between land and the fixed platform. Thus, when loading and unloading the ship, the probability of the first trolley and the second trolley working in the same area at the same time is reduced, the waiting time of the first trolley and the second trolley is reduced, and the efficiency of loading and unloading the ship is improved.

Description

Technical Field

[0001] This application relates to the field of port equipment technology, specifically to a transshipment platform component, control method, and container crane. Background Technology

[0002] In the field of container cranes, a dual-trolley operation mode is generally adopted, with a fixed transfer platform set on the upper surface of the land-side or sea-side lower connecting beam. During unloading, the main trolley lifts the container from the ship to the fixed transfer platform, and the gantry trolley then lifts the container from the transfer platform to the AGV. During loading, the gantry trolley lifts the container from the AGV to the fixed transfer platform, and the main trolley then lifts it from the transfer platform onto the ship. Since the transfer platform is fixed, when the main trolley and gantry trolley are storing containers in this area, to avoid interference between the two trolleys, they often need to wait. One trolley can only enter to grab or place a container after the other trolley has finished grabbing or placing it in this area, resulting in long waiting times and low loading and unloading efficiency. Summary of the Invention

[0003] In view of this, this application provides a transshipment platform component that solves the problems of long trolley waiting time and low loading and unloading efficiency during the loading and unloading process of container cranes. This application also provides a control method applied to the aforementioned transshipment platform component. This application further provides a container crane including the aforementioned transshipment platform component.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A transshipment platform assembly is mounted on a container crane, the container crane including a sea-side portal frame, a land-side portal frame, a main beam fixed to the sea-side portal frame and the land-side portal frame, a connecting beam disposed under the main beam, a first trolley, a second trolley, and an AGV, comprising:

[0006] A mobile platform is mounted on the connecting beam and can move back and forth between the sea side and the land side of the connecting beam;

[0007] A fixed platform is installed on the lower crossbeam of the seaside gate frame and / or the lower crossbeam of the landside gate frame;

[0008] The mobile platform and the fixed platform are each provided at least once. The first trolley is used to move the container between the ship and the mobile platform or between the ship and the fixed platform. The second trolley is used to move the container between the AGV and the mobile platform or between the AGV and the fixed platform.

[0009] Optionally, there are two fixed platforms and one mobile platform, with one fixed platform located on the lower crossbeam of the sea-side gate frame and the other fixed platform located on the lower crossbeam of the land-side gate frame, and the mobile platform located between the two fixed platforms.

[0010] Optionally, one fixed platform is provided, and two mobile platforms are provided, with the fixed platform located on the lower crossbeam of the seaside gate frame or the lower crossbeam of the landside gate frame.

[0011] Optionally, there are two fixed platforms and two mobile platforms, with one fixed platform located on the lower crossbeam of the sea-side gate frame and the other fixed platform located on the lower crossbeam of the land-side gate frame, and the two mobile platforms located between the two fixed platforms.

[0012] A control method for a transit platform component, applied to any of the transit platform components described above.

[0013] Optionally, the following steps may be included during unloading:

[0014] The first trolley grabs a container from the ship and moves it towards the land side. Before the first trolley moves above the sea-side connecting beam, the position of the mobile platform is confirmed.

[0015] If the mobile platform can reach the seaside end of the travel distance on the connecting beam, the first trolley will place the container onto the mobile platform;

[0016] If the mobile platform cannot reach the seaside end of the travel distance on the connecting beam, the first trolley will place the container on the fixed platform located on the crossbeam below the seaside door frame.

[0017] The second trolley moves towards the sea side. If both the mobile platform and the fixed platform located on the lower crossbeam of the sea side door frame have containers, the second trolley will first grab the container on the mobile platform and then grab the container on the fixed platform located on the lower crossbeam of the sea side door frame. If either the mobile platform or the fixed platform located on the lower crossbeam of the sea side door frame has a container, the second trolley will grab the container on that platform.

[0018] After the second trolley picks up the container, it moves to the tail of the connecting beam to unload the container onto the AGV.

[0019] Optionally, the following steps may be included during loading:

[0020] The second trolley picks up the container from the AGV and moves it towards the landside. When the second trolley moves to the landside connecting beam, the position of the moving platform is confirmed.

[0021] If the mobile platform can reach the landside end of the travel distance on the connecting beam, the second trolley places the container onto the mobile platform;

[0022] If the mobile platform cannot reach the landside end of the travel distance on the connecting beam, the second trolley will place the container on the fixed platform located on the crossbeam below the landside door frame.

[0023] The first trolley moves towards the landside. If both the mobile platform and the fixed platform located on the lower crossbeam of the landside door frame have containers, the first trolley will first grab the container on the mobile platform and then grab the container on the fixed platform located on the lower crossbeam of the landside door frame. If either the mobile platform or the fixed platform located on the lower crossbeam of the landside door frame has a container, the first trolley will grab the container on that platform.

[0024] After the first trolley picks up the container, it moves to the tail of the main beam to unload the container onto the ship.

[0025] Optionally, during unloading, the second trolley can only grab the container on the mobile platform when the mobile platform is running between the center of the operating area and the landside area.

[0026] Optionally, during loading, the first trolley can only grab the container on the mobile platform when the mobile platform is operating between the center of the operating area and the sea side area.

[0027] A container crane includes a sea-side portal frame, a land-side portal frame, a main beam fixed to the sea-side portal frame and the land-side portal frame, a connecting beam disposed under the main beam, a first trolley and a second trolley, including the transfer platform assembly described in any one of the above.

[0028] The transshipment platform component provided in this application, by setting at least one mobile platform that reciprocates between the sea side and the land side of the connecting beam and at least one fixed platform set on the lower crossbeam of the sea side portal frame and / or the lower crossbeam of the land side portal frame, allows a first trolley to place containers from the ship onto the mobile platform or fixed platform during unloading, and a second trolley to move the containers from the mobile platform or fixed platform, and vice versa during unloading. This reduces the likelihood of the first and second trolleys operating simultaneously in the same area during loading and unloading, thereby reducing waiting time for both trolleys and improving loading and unloading efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 This is a front view of the container crane in the first state provided in this embodiment;

[0031] Figure 2 This is a front view of the container crane in its second state.

[0032] Figure 3 This is a right view of a container crane.

[0033] Figures 1-3 middle:

[0034] 1-Transfer platform component, 2-Sea-side portal frame, 3-Land-side portal frame, 4-Main beam, 5-Connecting beam, 6-First trolley, 7-Second trolley, 8-AGV, 9-Container;

[0035] 11-Mobile platform, 12-Fixed platform. Detailed Implementation

[0036] This application provides a transfer platform component 1. This application also provides a control method applied to the aforementioned transfer platform component 1. This application further provides a container crane including the aforementioned transfer platform component 1.

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] like Figures 1-3As shown, this application embodiment provides a transfer platform assembly 1, which is mounted on a container crane. The container crane includes a sea-side portal frame 2, a land-side portal frame 3, a main beam 4 fixed to the sea-side portal frame 2 and the land-side portal frame 3, a connecting beam 5 disposed on the lower side of the main beam 4, a first trolley 6, and a second trolley 7. The transfer platform assembly 1 mainly includes a mobile platform 11 and a fixed platform 12. The mobile platform 11 is disposed on the connecting beam 5 and can reciprocate between the sea side and the land side of the connecting beam 5; the fixed platform 12 is disposed on the lower crossbeam of the sea-side portal frame 2 and / or the lower crossbeam of the land-side portal frame 3. Specifically, during unloading, the first trolley 6 lifts container 9 from the ship and moves it towards the land side on the main beam 4. Simultaneously, the moving platform 11 moves towards the sea side on the connecting beam 5. The first trolley 6 places container 9 onto the moving platform 11. Then, the first trolley 6 moves to load the next container 9 located on the ship. Simultaneously, the moving platform 11 moves towards the land side on the connecting beam 5. The second trolley 7 moves towards the sea side to load container 9 from the moving platform 11. During loading, the second trolley 7 lifts container 9 from the land and moves it towards the sea side on the connecting beam 5. Simultaneously, the moving platform 11 moves towards the land side on the connecting beam 5. The second trolley 7 places container 9 onto the moving platform 11. Then, the second trolley 7 moves to load the next container 9 located on the land. Simultaneously, the moving platform 11 moves towards the sea side on the connecting beam 5. The first trolley 6 moves towards the land side to load container 9 from the moving platform 11.

[0039] It should be noted that the first trolley 6 and the second trolley 7 do not have overlapping operating areas and do not affect each other during operation. When the first trolley 6 is operating, the mobile platform 11 moves to the seaside area of ​​the connecting beam 5; when the second trolley 7 is operating, the mobile platform 11 moves to the landside area of ​​the connecting beam 5. When unloading, if the mobile platform 11 has not reached the designated position, the first trolley 6 can temporarily store the container 9 on the fixed platform 12 located on the lower crossbeam of the seaside door frame 2. When loading, if the mobile platform 11 has not reached the designated position, the second trolley 7 can temporarily store the container 9 on the fixed platform 12 located on the lower crossbeam of the landside door frame 3.

[0040] The system includes at least one mobile platform 11 and one fixed platform 12. A first trolley 6 is used to move the container 9 between the ship and the mobile platform 11 or between the ship and the fixed platform 12. A second trolley 7 is used to move the container 9 between land and the mobile platform 11 or between land and the fixed platform 12. The number of mobile platforms 11 and fixed platforms 12 is not limited. Increasing the number of mobile platforms 11 and / or fixed platforms 12 can improve the turnover efficiency of the container 9, further reduce the waiting time of the first trolley 6 and the second trolley 7, and further improve the transportation efficiency of the container 9.

[0041] In this embodiment, during unloading, the first trolley 6 prioritizes placing the container 9 onto the mobile platform 11, and the second trolley 7 prioritizes grabbing the container 9 located on the mobile platform 11; during loading, the second trolley 7 prioritizes placing the container 9 onto the mobile platform 11, and the first trolley 6 prioritizes grabbing the container 9 located on the mobile platform 11. This allows the container 9 to be handled in a relay operation between the first trolley 6, the mobile platform 11, and the second trolley 7, thereby improving the operational efficiency of the container 9.

[0042] It should also be noted that the sea side is Figure 1 The area shown in A is on the land side. Figure 1 The area shown in B.

[0043] It should also be noted that, Figure 1 The middle arrow D indicates the movement path of container 9 during unloading. Figure 2 The middle arrow E indicates the movement path of container 9 during loading.

[0044] The transfer platform component 1 described above, by providing at least one mobile platform 11 that reciprocates between the sea side and the land side of the connecting beam 5, and at least one fixed platform 12 located on the lower crossbeam of the sea side portal frame 2 and / or the lower crossbeam of the land side portal frame 3, allows for efficient unloading. During unloading, a first trolley 6 can place containers 9 from the ship onto the mobile platform 11 or the fixed platform 12, and a second trolley 7 can move the containers 9 from the mobile platform 11 or the fixed platform 12. The reverse is also true during unloading. This reduces the likelihood of the first trolley 6 and the second trolley 7 operating simultaneously in the same area during loading and unloading, thereby reducing their waiting time and improving loading and unloading efficiency.

[0045] In some embodiments, two fixed platforms 12 and one mobile platform 11 are provided. One fixed platform 12 is located on the lower crossbeam of the sea-side door frame 2, and the other fixed platform 12 is located on the lower crossbeam of the land-side door frame 3. The mobile platform 11 is located between the two fixed platforms 12. Thus, during unloading, the first trolley 6 lifts the container 9 located on the ship and moves it towards the land side. When the mobile platform 11 has not moved to a position close to the sea side, the first trolley 6 places the container 9 on the fixed platform 12 located on the lower crossbeam of the sea-side door frame 2. Correspondingly, during loading, the second trolley 7 lifts the container 9 located on the land and moves it towards the sea side. When the mobile platform 11 has not moved to a position close to the land side, the second trolley 7 places the container 9 on the fixed platform 12 located on the lower crossbeam of the land-side door frame 3.

[0046] Here, two fixed platforms 12 are set up, one on the lower crossbeam of the sea-side portal frame 2 and the other on the lower crossbeam of the land-side portal frame 3, which further reduces the waiting time of the first trolley 6 and the second trolley 7. Setting up only one mobile platform 11, compared to setting up multiple mobile platforms 11, can avoid interference between mobile platforms 11 when hoisting the container 9, reduce the failure rate, and improve efficiency.

[0047] In some embodiments, one fixed platform 12 is provided, and two mobile platforms 11 are provided. The fixed platform 12 is located on the lower crossbeam of the sea-side door frame 2 or the lower crossbeam of the land-side door frame 3. Specifically, by providing two mobile platforms 11, there is a greater chance that the container 9 will be placed on the mobile platform 11 when the first trolley 6 and the second trolley 7 are hoisting it. After the container 9 is placed on the mobile platform 11, the mobile platform 11 moves back and forth between the sea side and the land side of the connecting beam 5, thus shortening the travel distance of the first trolley 6 and the second trolley 7, thereby further improving the efficiency of the transfer platform assembly 1 in transferring the container 9.

[0048] In some embodiments, two fixed platforms 12 and two mobile platforms 11 are provided. One fixed platform 12 is located on the lower crossbeam of the sea-side portal frame 2, and the other fixed platform 12 is located on the lower crossbeam of the land-side portal frame 3. The two mobile platforms 11 are located between the two fixed platforms 12. Specifically, in this embodiment, in addition to providing two mobile platforms 11, two fixed platforms 12 are also provided, located on the lower crossbeams of the sea-side portal frame 2 and the land-side portal frame 3, respectively. This way, when the two mobile platforms 11 are insufficient to transport the container 9 lifted by the first trolley 6 and the second trolley 7, it can be placed on the two fixed platforms 12. This embodiment is suitable for schemes where the lifting efficiency of the first trolley 6 and the second trolley 7 is high.

[0049] Furthermore, one mobile platform 11 and one fixed platform 12 can each be provided, with the fixed platform 12 mounted on either the lower crossbeam of the landside portal frame 3 or the lower crossbeam of the seaside portal frame 2. Compared to the option of providing two fixed platforms 12, the operational efficiency of the container 9 can be improved through the cooperation of the mobile platform 11 and the fixed platform 12.

[0050] This application also provides a control method for a transit platform component 1, which is applied to the aforementioned transit platform component 1. Since the control method for the transit platform component 1 is applied to the aforementioned transit platform component 1, the beneficial effects brought by the control method for the transit platform component 1 by the transit platform component 1 can be found in the above description and will not be repeated here.

[0051] In some embodiments, unloading includes the following steps:

[0052] The first trolley 6 grabs container 9 from the ship and moves it to the land side. Before the first trolley 6 moves above the sea-side connecting beam 5, the position of the mobile platform 11 is confirmed.

[0053] If the mobile platform 11 can reach the seaside end of the running journey on the connecting beam 5, the first trolley 6 will place the container 9 onto the mobile platform 11;

[0054] If the mobile platform 11 cannot reach the seaside end of the travel distance on the connecting beam 5, the first trolley 6 will place the container 9 onto the fixed platform 12 located on the lower crossbeam of the seaside door frame 2.

[0055] The second trolley 7 moves towards the sea side. If both the mobile platform 11 and the fixed platform 12 located on the lower crossbeam of the sea side door frame 2 have containers 9, the second trolley 7 will first grab the container 9 on the mobile platform 11, and then grab the container 9 on the fixed platform 12 located on the lower crossbeam of the sea side door frame 2. If either the mobile platform 11 or the fixed platform 12 located on the lower crossbeam of the sea side door frame 2 has a container 9, the second trolley 7 will grab the container 9 on that platform.

[0056] After the second trolley 7 picks up container 9, it moves to the tail of the connecting beam 5 and unloads container 9 onto AGV8.

[0057] Specifically, the above method is used to unload container 9. When the mobile platform 11 has not moved to the seaside position, the first trolley 6 places container 9 onto the fixed platform 12 on the lower crossbeam of the seaside portal frame 2; when the mobile platform 11 has not moved to the landside position, the second trolley 7 lifts container 9 from the fixed platform 12 on the lower crossbeam of the seaside portal frame 2. This reduces the waiting time for the first trolley 6 and the second trolley 7, and avoids overlapping operations between them, thus improving unloading efficiency.

[0058] In some embodiments, loading includes the following steps:

[0059] The second trolley 7 picks up the container 9 from the AGV and moves it towards the land side. When the second trolley 7 moves to the land side connecting beam 5, the position of the mobile platform 11 is confirmed.

[0060] If the mobile platform 11 can reach the landside end of the running journey on the connecting beam 5, the second trolley 7 will place the container 9 onto the mobile platform 11;

[0061] If the mobile platform 11 cannot reach the landside end of the travel distance on the connecting beam 5, the second trolley 7 will place the container 9 onto the fixed platform 12 located on the lower crossbeam of the landside door frame 3.

[0062] The first trolley 6 moves towards the land side. If both the mobile platform 11 and the fixed platform 12 located on the lower crossbeam of the land side door frame 3 have containers 9, the first trolley 6 will first grab the container 9 on the mobile platform 11, and then grab the container 9 on the fixed platform 12 located on the lower crossbeam of the land side door frame 3. If either the mobile platform 11 or the fixed platform 12 located on the lower crossbeam of the land side door frame 3 has a container 9, the first trolley 6 will grab the container 9 on that platform.

[0063] After the first trolley 6 grabs container 9, it moves to the tail of the main beam 4 to unload container 9 onto the ship.

[0064] Specifically, the above method is used to load container 9 onto the ship. When the mobile platform 11 has not moved to the landside position, the second trolley 7 places container 9 onto the fixed platform 12 on the lower crossbeam of the landside door frame 3; when the mobile platform 11 has not moved to the seaside position, the first trolley 6 lifts container 9 from the fixed platform 12 on the lower crossbeam of the landside door frame 3. This reduces the waiting time for the first trolley 6 and the second trolley 7, and avoids the overlapping operation time of the first trolley 6 and the second trolley 7, allowing them to operate independently and thus improving loading efficiency.

[0065] In some embodiments, during unloading, the second trolley 7 can only grab the container 9 on the mobile platform 11 when the mobile platform 11 is between the center of the operating area and the landside area. Specifically, the mobile platform 11 is located between the center of the operating area and the landside area, that is, when the mobile platform 11 is located in the half of the operating area closer to the landside, the second trolley 7 grabs the container 9 on the mobile platform 11. Correspondingly, the first trolley 6 can only place the container 9 on the mobile platform 11 when the mobile platform 11 is between the center of the operating area and the seaside area. This avoids the second trolley 7 grabbing the container 9 on the mobile platform 11 immediately after the first trolley 6 places it on the mobile platform 11, thus avoiding collisions between the first trolley 6 and the second trolley 7 and ensuring the orderly operation of the unloading operation.

[0066] It should be noted that the centerline of the operating area refers to Figure 1 The position indicated by the dashed line C.

[0067] In some embodiments, during loading, the first trolley 6 can only grab the container 9 on the mobile platform 11 when the mobile platform 11 is between the center of the operating area and the seaside area. Specifically, the first trolley 6 grabs the container 9 when the mobile platform 11 is located between the center of the operating area and the seaside area, that is, when the mobile platform 11 is located in the half of the operating area closer to the seaside. Correspondingly, the second trolley 7 can only place the container 9 on the mobile platform 11 when the mobile platform 11 is between the center of the operating area and the landside area. This avoids the first trolley 6 grabbing the container 9 on the mobile platform 11 immediately after the second trolley 7 places it on the mobile platform 11, thus avoiding collisions between the first trolley 6 and the second trolley 7 and ensuring the orderly operation of the loading operation.

[0068] A container crane includes a sea-side portal frame 2, a land-side portal frame 3, a main beam 4 fixed to the sea-side portal frame 2 and the land-side portal frame 3, a connecting beam 5 disposed under the main beam 4, a first trolley 6, and a second trolley 7, and a transfer platform assembly 1 including any of the above. Since the container crane includes the aforementioned transfer platform assembly 1, the beneficial effects brought by the transfer platform assembly 1 to the container crane are as described above and will not be repeated here.

[0069] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0070] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0071] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0072] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0073] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0074] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A control method for a transshipment platform assembly, the transshipment platform assembly being mounted on a container crane, the container crane including a sea-side portal frame, a land-side portal frame, a main beam fixed to the sea-side portal frame and the land-side portal frame, a connecting beam disposed under the main beam, a first trolley, a second trolley, and an AGV; the transshipment platform assembly including a mobile platform and a fixed platform, the mobile platform being disposed on the connecting beam and capable of reciprocating between the sea-side and land-side sides of the connecting beam; the fixed platform being disposed on the lower crossbeam of the sea-side portal frame and the lower crossbeam of the land-side portal frame; in, At least one mobile platform and one fixed platform are provided. The first trolley is used to move the container between the ship and the mobile platform or between the ship and the fixed platform. The second trolley is used to move the container between the AGV and the mobile platform or between the AGV and the fixed platform. Its characteristic is that the unloading process includes the following steps: The first trolley grabs a container from the ship and moves it towards the land side. Before the first trolley moves above the connecting beam on the sea side, the position of the mobile platform is confirmed. If the mobile platform can reach the seaside end of the travel distance on the connecting beam, the first trolley will place the container onto the mobile platform; If the mobile platform cannot reach the seaside end of the travel distance on the connecting beam, the first trolley will place the container on the fixed platform located on the crossbeam below the seaside door frame. The second trolley moves towards the sea side. If both the mobile platform and the fixed platform located on the lower crossbeam of the sea side door frame have containers, the second trolley will first grab the container on the mobile platform and then grab the container on the fixed platform located on the lower crossbeam of the sea side door frame. If either the mobile platform or the fixed platform located on the lower crossbeam of the sea side door frame has a container, the second trolley will grab the container on that platform. After the second trolley picks up the container, it moves to the tail of the connecting beam and places the container onto the AGV.

2. The control method according to claim 1, characterized in that, There are two fixed platforms and one mobile platform. One of the fixed platforms is located on the lower crossbeam of the sea-side gate frame, and the other fixed platform is located on the lower crossbeam of the land-side gate frame. The mobile platform is located between the two fixed platforms.

3. The control method according to claim 1, characterized in that, There are two fixed platforms and two mobile platforms. One of the fixed platforms is located on the lower crossbeam of the sea-side gate frame, and the other fixed platform is located on the lower crossbeam of the land-side gate frame. The two mobile platforms are located between the two fixed platforms.

4. The control method according to claim 1, characterized in that, The loading process includes the following steps: The second trolley picks up the container from the AGV and moves it towards the land side. When the second trolley moves to the connecting beam on the land side, the position of the moving platform is confirmed. If the mobile platform can reach the landside end of the travel distance on the connecting beam, the second trolley places the container onto the mobile platform; If the mobile platform cannot reach the landside end of the travel distance on the connecting beam, the second trolley will place the container on the fixed platform located on the crossbeam below the landside door frame. The first trolley moves towards the landside. If both the mobile platform and the fixed platform located on the lower crossbeam of the landside door frame have containers, the first trolley will first grab the container on the mobile platform and then grab the container on the fixed platform located on the lower crossbeam of the landside door frame. If either the mobile platform or the fixed platform located on the lower crossbeam of the landside door frame has a container, the first trolley will grab the container on that platform. After the first trolley picks up the container, it moves to the front end of the main beam to unload the container onto the ship.

5. According to the control method of claim 1, during unloading, the second trolley can only grab the container on the mobile platform when the mobile platform is running between the center of the operating area and the landside area.

6. According to the control method of claim 4, during loading, the first trolley can only grab the container on the mobile platform when the mobile platform is running between the center of the operating area and the sea side area.

7. A container crane, comprising a sea-side portal frame, a land-side portal frame, a main beam fixed to the sea-side portal frame and the land-side portal frame, a connecting beam disposed under the main beam, a first trolley and a second trolley, characterized in that, It also includes a transit platform component, which uses the control method described in any one of claims 1-3.

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