Battery replacement hoisting device for electric ship

Abstract

The invention belongs to the technical field of electric ships, and relates to an electric ship battery replacement hoisting device. The second telescopic component (16) is fixed on the third plate piece (10) and is connected with a movable rod piece (17), one end of the movable rod piece (17) is eccentrically connected with a first rotating rod (21), the other end of the movable rod piece (17) is eccentrically connected with a second rotating rod (22), the first rotating rod (21) movably penetrates through the third plate piece (10) and is close to the edge position of one end, and the second rotating rod (22) movably penetrates through the third plate piece (10) and is close to the edge position of the other end. The lower portion of the first rotating rod (21) is connected with a first lifting hook (23), and the lower portion of the second rotating rod (22) is connected with a second lifting hook (24). The battery replacement hoisting device for the electric ship is simple in structure, capable of conveniently and rapidly achieving battery transfer and ensuring reliable connection and separation with the battery in the transfer process, low in precision requirement and low in cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric ships, and more specifically, relates to a battery replacement hoisting device for electric ships. Background Art

[0002] With the growing global demand for clean energy and sustainable transportation, the shipping industry is facing unprecedented challenges and opportunities. Traditional ships mainly rely on fossil fuels, which not only leads to serious environmental pollution problems, but also its economic feasibility is questioned as resources are increasingly depleted. Therefore, the research and development of new clean energy ships, especially battery-swap ships, has become an inevitable trend in the development of the industry. When the ship is swapping batteries, the batteries on the shore need to be transferred to the electric ship, which requires a battery-swap vehicle. The battery-swap vehicle needs to use a battery hoist during the battery lifting process to achieve the lifting of the battery on the battery-swap vehicle. The existing battery-swap vehicle hoist has a relatively complex structure, high control accuracy requirements, complex operation, and high cost.

[0003] There is a technology named "a lifting device for battery replacement of electric ships" and the publication (announcement) number "CN221370251U" in the prior art. This technology relates to the technical field of battery replacement of electric ships, and specifically, to a lifting device for battery replacement of electric ships. It includes two gantry poles, the tops of the two gantry poles are connected to the crossbeam, both ends of the crossbeam are connected to the extension components, the bottom ends of both sides of the crossbeam are connected to the reinforcement components, and the bottoms of the two gantry poles are connected to the horizontal adjustment components. The utility model uses the extension component to extend the two sides of the crossbeam, and at the same time uses the lifting device starting component to drive the lifting device body to slide to the outside of the ship's side, and clamps and transports the battery box placed on the dock. When the battery box passes through the gantry pole during the lifting, the battery box lifted longitudinally is rotated 90 degrees in the horizontal direction, and the battery box passes through the gantry pole horizontally. When the battery box enters the inner edge of the gantry pole, it continues to rotate horizontally 90 degrees, and the battery box can be restored to the longitudinal lifting and placed in the designated position.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the shortcomings of the prior art, to provide an electric ship battery replacement lifting device with a simple structure, which can conveniently and quickly realize the transportation of batteries, ensure reliable connection and separation with the batteries during transportation, have low precision requirements and low cost.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The present invention discloses a battery replacement lifting device for electric ships, wherein a first plate is connected to a scissor fork structure, the scissor fork structure is connected to a second plate, the second plate is connected to a third plate through a chain, a hook assembly is arranged on the third plate, a second telescopic component of the hook assembly is fixed on the third plate, the second telescopic component is connected to a movable rod, one end of the movable rod is eccentrically connected to a first rotating rod, and the other end of the movable rod is eccentrically connected to a second rotating rod, the first rotating rod moves through a position close to an edge of one end of the third plate, the second rotating rod moves through a position close to an edge of the other end of the third plate, the lower part of the first rotating rod is connected to a first hook, and the lower part of the second rotating rod is connected to a second hook.

[0008] A guide block is arranged at the lower part of the third plate, and a guide surface of an arc-shaped structure is arranged on the guide block, and the guide surface is a structure located at the outside.

[0009] The first plate member is connected to the boom of the crane through a connecting member, and the second plate member is connected to the third plate member through a plurality of chains.

[0010] The scissors fork structure includes an upper connecting seat, a lower connecting seat, an upper left scissors rod, an upper right scissors rod, a lower left scissors rod, and a lower right scissors rod. The upper connecting seat is fixedly connected to the lower part of the first plate, and the lower connecting seat is fixedly connected to the upper part of the second plate.

[0011] The upper end of the upper left scissor rod and the upper end of the upper right scissor rod of the scissor fork structure are movably connected to the upper connecting seat respectively, the lower end of the upper left scissor rod is movably connected to the upper end of the lower left scissor rod, the lower end of the upper right scissor rod is movably connected to the upper end of the lower right scissor rod, and the lower end of the upper right scissor rod and the lower end of the lower right scissor rod are movably connected to the lower connecting seat respectively.

[0012] The connecting member and the first plate member are movably connected via a rotating member, a first telescopic member is fixedly arranged on the first plate member, and the first telescopic member is connected to the rotating member.

[0013] The electric ship battery replacement lifting device also includes a lifting rope, one end of the lifting rope passes through a connecting piece, a rotating piece, and a first plate to connect to a second plate, the other end of the lifting rope passes around a guide wheel at one end of the boom and is connected to a lifting rope drum at the other end of the boom, the lifting rope drum is connected to a retractable motor, and the retractable motor is fixed to the outside of the boom.

[0014] The third plate member is a square structure, and guide blocks are arranged near the end positions on each side of the third plate member, and the guide surfaces are located in the side direction of the third plate member.

[0015] A plurality of groups of hook components are arranged at intervals on the third plate.

[0016] The second telescopic component of the hook assembly is connected to the control component.

[0017] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0018] The battery replacement hoisting device for electric ships of the present invention is structured such that the first plate is connected to the scissor fork structure, and the scissor fork structure is simultaneously connected to the second plate, so that the first plate and the second plate are connected to a flexible connection structure, and the second plate is connected to the third plate by a chain, so that the second plate and the third plate are connected to a flexible connection structure. A hook assembly is provided on the third plate, and the function of the hook assembly is to achieve convenient and reliable connection with the battery when the hoisting device hoists the battery, and after the battery is hoisted in place, the hook assembly can be conveniently and reliably separated from the battery, thereby achieving automatic control. The structure of the hook assembly is specifically improved. The control component controls the second telescopic component of the hook assembly to be fixed on the third plate. The second telescopic component is fixed in position. The second telescopic component is connected to the moving rod. The second telescopic component telescopes to drive the moving rod to move in different directions. One end of the moving rod is eccentrically connected to the first rotating rod, and the other end of the moving rod is eccentrically connected to the second rotating rod. In this way, when the moving rod moves in different directions, it can drive the first rotating rod and the second rotating rod to rotate respectively. The first rotating rod moves through the edge position of the third plate near one end, and the second rotating rod moves through the edge position of the third plate near the other end. The lower part of the first rotating rod is connected to the first hook, and the lower part of the second rotating rod is connected to the second hook. After the hoisting device is close to the battery, a hoisting frame is set on the upper part of the battery. When the control component controls the second telescopic component to extend in one direction, the second telescopic component drives the first rotating rod and the second rotating rod to rotate in one direction respectively, the first rotating rod drives the first hook to rotate toward the outside of the third plate to extend the first hook, the second rotating rod drives the second hook to rotate toward the outside of the third plate to extend the second hook, after the first hook and the second hook extend respectively, they are hooked on different upper beams of the battery respectively, and one upper beam abuts on the first rotating rod, and the other upper beam abuts on the second rotating rod, to achieve reliable hooking and limiting with the battery. Thereafter, the battery is lifted by a crane. After the battery is moved into place, the lifting device needs to be separated from the battery. At this time, when the second telescopic component extends to another direction, the second telescopic component drives the first rotating rod and the second rotating rod to rotate in another direction respectively. The first rotating rod drives the first hook to rotate toward the inner side of the third plate to achieve the folding of the first hook. The second rotating rod drives the second hook to rotate toward the inner side of the third plate to achieve the folding of the second hook. After the first hook and the second hook are folded, they are no longer hooked on different upper beams of the battery, respectively, to achieve reliable separation of the lifting device and the battery. The lifting device can leave the battery, and the battery transportation can be completed conveniently and reliably. The structure of the present invention is simple to operate, does not require excessively high precision requirements, meets the use requirements, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 This is a schematic diagram of the structure of the battery replacement hoisting device for electric ships according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the battery replacement hoisting device for electric ships according to the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of the battery replacement hoisting device for electric ships according to the present invention;

[0023] Figure 4 It is a partial structural schematic diagram of the battery replacement hoisting device for electric ships according to the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of the battery replacement hoisting device for electric ships according to the present invention;

[0025] The marks in the accompanying drawings are respectively: 1, connecting member; 2, rotating member; 3, first telescopic member; 4, first plate; 5, scissors fork structure; 6, second plate; 7, chain; 8, lifting rope; 9, rotating structure; 10, third plate; 11, guide surface; 12, guide block; 13, lifting rope drum; 14, retractable motor; 15, guide wheel; 16, second telescopic member; 17, moving rod; 18, control member; 20, second telescopic member control battery; 21, first rotating rod; 22, second rotating rod; 23, first hook; 24, second hook; 25, crane; 26, boom; 27, upper connecting seat; 28, lower connecting seat; 29, upper left scissors rod; 30, upper right scissors rod; 31, lower left scissors rod; 32, lower right scissors rod; 33, side of the third plate. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0027] As attached Figure 1 -Attached Figure 5As shown, the present invention is a battery replacement hoisting device for electric ships, the first plate 4 is connected to the scissor fork structure 5, the scissor fork structure 5 is connected to the second plate 6, the second plate 6 is connected to the third plate 10 through the chain 7, the third plate 10 is provided with a hook assembly, the second telescopic component 16 of the hook assembly is fixed on the third plate 10, the second telescopic component 16 is connected to the moving rod 17, one end of the moving rod 17 is eccentrically connected to the first rotating rod 21, the other end of the moving rod 17 is eccentrically connected to the second rotating rod 22, the first rotating rod 21 moves through the edge position of the third plate 10 near one end, the second rotating rod 22 moves through the edge position of the third plate 10 near the other end, the lower part of the first rotating rod 21 is connected to the first hook 23, and the lower part of the second rotating rod 22 is connected to the second hook 24. The above structure proposes an improved technical solution to the deficiencies in the prior art. When the structure is set, the first plate 4 is connected to the scissor fork structure 5, and the scissor fork structure 5 is connected to the second plate 6 at the same time, so that the first plate 4 and the second plate 6 are connected to a flexible connection structure, and the second plate 6 is connected to the third plate 10 through a chain 7, so that the second plate 6 and the third plate 10 are connected to a flexible connection structure. A hook assembly is arranged on the third plate 10, and the function of the hook assembly is to realize convenient and reliable connection with the battery when the lifting device lifts the battery, and after the battery is lifted in place, the hook assembly can be conveniently and reliably separated from the battery to realize automatic control. The structure of the hook assembly is specifically improved. The control component controls the second telescopic component 16 of the hook assembly to be fixed on the third plate 10. The second telescopic component 16 is fixed in position. The second telescopic component 16 is connected to the moving rod 17. The second telescopic component telescopes and drives the moving rod to move in different directions. One end of the moving rod 17 is eccentrically connected to the first rotating rod 21, and the other end of the moving rod 17 is eccentrically connected to the second rotating rod 22. In this way, when the moving rod moves in different directions, the first rotating rod 21 and the second rotating rod 22 can be driven to rotate respectively. The first rotating rod 21 moves through the edge position of the third plate 10 near one end, and the second rotating rod 22 moves through the edge position of the third plate 10 near the other end. The lower part of the first rotating rod 21 is connected to the first hook 23, and the lower part of the second rotating rod 22 is connected to the second hook 24. After the hoisting device is close to the battery, a hoisting frame is set on the upper part of the battery. When the control component controls the second telescopic component 16 to extend in one direction, the second telescopic component 16 drives the first rotating rod 21 and the second rotating rod 22 to rotate in one direction respectively, the first rotating rod 21 drives the first hook 23 to rotate toward the outside of the third plate 10 to extend the first hook 23, the second rotating rod 22 drives the second hook 24 to rotate toward the outside of the third plate 10 to extend the second hook 24, and after the first hook 23 and the second hook 24 extend respectively, they are hooked on different upper beams of the battery respectively, and one upper beam abuts on the first rotating rod 21, and the other upper beam abuts on the second rotating rod 22, to achieve reliable hooking and limiting with the battery. Thereafter, the battery is lifted by a crane.After the battery is moved into place, the lifting device needs to be separated from the battery. At this time, when the second telescopic component 16 extends to another direction, the second telescopic component 16 drives the first rotating rod 21 and the second rotating rod 22 to rotate in another direction respectively. The first rotating rod 21 drives the first hook 23 to rotate toward the inner side of the third plate 10 to achieve the folding of the first hook 23. The second rotating rod 22 drives the second hook 24 to rotate toward the inner side of the third plate 10 to achieve the folding of the second hook 24. After the first hook 23 and the second hook 24 are folded, they are no longer hooked on different upper beams of the battery, respectively, to achieve reliable separation of the lifting device and the battery. The lifting device can leave the battery and conveniently and reliably complete the transportation of the battery. The structure of the lifting device of the present invention is simple to operate, does not require excessively high precision requirements, meets the use requirements, and reduces costs. The electric ship battery replacement lifting device described in the present invention has a simple structure, can conveniently and quickly realize the transportation of batteries, ensures reliable connection and separation with the battery during transportation, has low precision requirements, and is low in cost.

[0028] The third plate 10 is provided with a guide block 12 at the lower part, and the guide block 12 is provided with an arc-shaped guide surface 11, and the guide surface 11 is a structure located on the outside. In the above structure, the guide block is provided with an arc-shaped guide surface, so that when the hoisting device approaches the battery, the third plate approaches the battery and is located above the battery, and the guide surfaces of the plurality of guide blocks are respectively downwardly inserted into the inner position of the upper beam corresponding to the hoisting frame above the battery, thereby reliably achieving alignment with the battery.

[0029] The first plate 4 is connected to the boom 26 of the crane 25 through the connector 1, and the second plate 6 is connected to the third plate 10 through a plurality of chains 7. With the above structure, the boom of the crane can be raised and lowered, thereby reliably driving the lifting device to be raised and lowered and moved to meet the battery lifting requirements.

[0030] The scissor fork structure 5 comprises an upper connection seat 27, a lower connection seat 28, an upper left scissor rod 29, an upper right scissor rod 30, a lower left scissor rod 31, and a lower right scissor rod 32. The upper connection seat 27 is fixedly connected to the lower part of the first plate 4, and the lower connection seat 28 is fixedly connected to the upper part of the second plate 6. The upper end of the upper left scissor rod 29 and the upper end of the upper right scissor rod 30 of the scissor fork structure 5 are respectively movably connected to the upper connection seat 27, the lower end of the upper left scissor rod 29 is movably connected to the upper end of the lower left scissor rod 31, the lower end of the upper right scissor rod 30 is movably connected to the upper end of the lower right scissor rod 32, and the lower end of the upper right scissor rod 30 and the lower end of the lower right scissor rod 32 are respectively movably connected to the lower connection seat 28. The electric ship battery replacement lifting device also includes a lifting rope 8, one end of the lifting rope 8 passes through the connecting member 1, the rotating member 2, the first plate 4 and connects to the second plate 6, and the other end of the lifting rope 8 bypasses the guide wheel 15 at one end of the boom 26 and connects to the lifting rope drum 13 at the other end of the boom 26, and the lifting rope drum 13 is connected to the retracting and discharging motor 14, and the retracting and discharging motor 14 is fixed to the outside of the boom 26. In the above structure, the scissor fork structure 5 is a flexible structure. When the battery needs to be lifted after the lifting device and the battery are reliably fixed, the retracting and discharging motor 14 controls the lifting rope drum 13 to move and retract the lifting rope 8. The lifting rope 8 first applies tension to the third plate 10, and the third plate 10 moves up. At this time, the second plate 6 and the first plate 4 will not be displaced, and the lifting rope 8 drives the scissor fork structure 5 to shrink until it shrinks to a fully retracted state. At this time, the relative position of the third plate 10 and the second plate 6 is fixed. Then the crane controls the boom 26 to rise, so as to achieve the battery rising, and then the crane moves the battery. After the battery is moved into place, the crane descends to lower the battery, and then the limit on the battery is released.

[0031] The connecting member 1 and the first plate member 4 are movably connected through the rotating member 2, and the first telescopic member 3 is fixedly arranged on the first plate member 4, and the first telescopic member 3 is connected to the rotating member 2. In the above structure, the control member is connected to the first telescopic member. The control member controls the telescopic extension of the first telescopic member 3, which can drive the rotating member 2 to rotate relative to the first plate member 4, that is, the change of the battery position is realized, so as to adapt to the reliable alignment of the position when the battery is lifted and when the battery is put down, and the operation is simple.

[0032] The third plate 10 is a square structure, and guide blocks 12 are respectively arranged near the end positions on each side of the third plate 10, and the guide surface 11 is located in the direction of the side surface 33 of the third plate. The above structure, through multiple guide blocks, can reliably achieve guidance when contacting with the battery, reliably clamp the upper beam of the frame of the battery, and effectively achieve rapid matching when the lifting device is connected to the battery.

[0033] A plurality of hook assemblies are provided at intervals on the third plate 10. The above structure can reliably realize reliable clamping with the frame of the battery when lifting the battery through the plurality of hook assemblies.

[0034] The second telescopic component 16 of the hook assembly is connected to the control component 18. With the above structure, the second telescopic component 16 can be reliably telescopically controlled by the control component, and the control reliability is good.

[0035] In the battery replacement hoisting device for electric ships of the present invention, the first plate 4 is connected to the scissor fork structure 5, and the scissor fork structure 5 is simultaneously connected to the second plate 6, so that the first plate 4 and the second plate 6 are connected to a flexible connection structure, and the second plate 6 is connected to the third plate 10 through a chain 7, so that the second plate 6 and the third plate 10 are connected to a flexible connection structure. A hook assembly is provided on the third plate 10, and the function of the hook assembly is to realize convenient and reliable connection with the battery when the hoisting device hoists the battery, and after the battery is hoisted in place, the hook assembly can be conveniently and reliably separated from the battery, thereby realizing automatic control. The structure of the hook assembly is specifically improved. The control component controls the second telescopic component 16 of the hook assembly to be fixed on the third plate 10. The second telescopic component 16 is fixed in position. The second telescopic component 16 is connected to the moving rod 17. The second telescopic component telescopes and drives the moving rod to move in different directions. One end of the moving rod 17 is eccentrically connected to the first rotating rod 21, and the other end of the moving rod 17 is eccentrically connected to the second rotating rod 22. In this way, when the moving rod moves in different directions, the first rotating rod 21 and the second rotating rod 22 can be driven to rotate respectively. The first rotating rod 21 moves through the edge position of the third plate 10 near one end, and the second rotating rod 22 moves through the edge position of the third plate 10 near the other end. The lower part of the first rotating rod 21 is connected to the first hook 23, and the lower part of the second rotating rod 22 is connected to the second hook 24. After the hoisting device is close to the battery, a hoisting frame is set on the upper part of the battery. When the control component controls the second telescopic component 16 to extend in one direction, the second telescopic component 16 drives the first rotating rod 21 and the second rotating rod 22 to rotate in one direction respectively, the first rotating rod 21 drives the first hook 23 to rotate toward the outside of the third plate 10 to extend the first hook 23, the second rotating rod 22 drives the second hook 24 to rotate toward the outside of the third plate 10 to extend the second hook 24, and after the first hook 23 and the second hook 24 extend respectively, they are hooked on different upper beams of the battery respectively, and one upper beam abuts on the first rotating rod 21, and the other upper beam abuts on the second rotating rod 22, to achieve reliable hooking and limiting with the battery. Thereafter, the battery is lifted by a crane. After the battery is moved into place, the lifting device needs to be separated from the battery. At this time, when the second telescopic component 16 extends to another direction, the second telescopic component 16 drives the first rotating rod 21 and the second rotating rod 22 to rotate in another direction respectively. The first rotating rod 21 drives the first hook 23 to rotate toward the inner side of the third plate 10 to achieve the folding of the first hook 23. The second rotating rod 22 drives the second hook 24 to rotate toward the inner side of the third plate 10 to achieve the folding of the second hook 24. After the first hook 23 and the second hook 24 are folded, they are no longer hooked on different upper beams of the battery, respectively, to achieve reliable separation of the lifting device and the battery. The lifting device can leave the battery, and the battery transportation can be completed conveniently and reliably. The structure of the present invention is simple in structure and operation, does not require excessively high precision requirements, meets the use requirements, and reduces costs.

[0036] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An electric ship battery replacement hoisting device, characterized in that: The first plate (4) is connected to the scissor fork structure (5), the scissor fork structure (5) is connected to the second plate (6), the second plate (6) is connected to the third plate (10) via a chain (7), a hook assembly is arranged on the third plate (10), a second telescopic component (16) of the hook assembly is fixed on the third plate (10), the second telescopic component (16) is connected to the moving rod (17), one end of the moving rod (17) is eccentrically connected to the first rotating rod (21), the other end of the moving rod (17) is eccentrically connected to the second rotating rod (22), the first rotating rod (21) moves through the edge position of the third plate (10) near one end, the second rotating rod (22) moves through the edge position of the third plate (10) near the other end, the lower part of the first rotating rod (21) is connected to the first hook (23), and the lower part of the second rotating rod (22) is connected to the second hook (24).

2. The electric ship battery replacement hoisting device according to claim 1 is characterized in that: A guide block (12) is arranged at the lower part of the third plate (10), and the guide block (12) is provided with a guide surface (11) of an arc structure, and the guide surface (11) is a structure located on the outside.

3. The electric ship battery replacement hoisting device according to claim 1 or 2, characterized in that: The first plate member (4) is connected to the boom (26) of the crane (25) via a connecting member (1), and the second plate member (6) is connected to the third plate member (10) via a plurality of chains (7).

4. The electric ship battery replacement hoisting device according to claim 1 or 2, characterized in that: The scissor fork structure (5) comprises an upper connecting seat (27), a lower connecting seat (28), an upper left scissor rod (29), an upper right scissor rod (30), a lower left scissor rod (31), and a lower right scissor rod (32); the upper connecting seat (27) is fixedly connected to the lower part of the first plate (4), and the lower connecting seat (28) is fixedly connected to the upper part of the second plate (6).

5. The battery replacement hoisting device for electric ships according to claim 4 is characterized in that: The upper end of the upper left scissor rod (29) and the upper end of the upper right scissor rod (30) of the scissor fork structure (5) are movably connected to the upper connecting seat (27), the lower end of the upper left scissor rod (29) is movably connected to the upper end of the lower left scissor rod (31), the lower end of the upper right scissor rod (30) is movably connected to the upper end of the lower right scissor rod (32), and the lower end of the upper right scissor rod (30) and the lower end of the lower right scissor rod (32) are movably connected to the lower connecting seat (28).

6. The electric ship battery replacement hoisting device according to claim 3 is characterized by: The connecting member (1) and the first plate member (4) are movably connected via a rotating member (2); a first telescopic member (3) is fixedly arranged on the first plate member (4); and the first telescopic member (3) is connected to the rotating member (2).

7. The electric ship battery replacement hoisting device according to claim 6 is characterized in that: The electric ship battery replacement lifting device also includes a lifting rope (8), one end of the lifting rope (8) passes through the connecting member (1), the rotating member (2), and the first plate member (4) to connect to the second plate member (6), and the other end of the lifting rope (8) passes around the guide wheel (15) at one end of the boom (26) to connect to the lifting rope drum (13) located at the other end of the boom (33), and the lifting rope drum (13) is connected to the retractable motor (14), and the retractable motor (14) is fixed to the outside of the boom (26).

8. The electric ship battery replacement hoisting device according to claim 1 or 2, characterized in that: The third plate (10) is a square structure, and a guide block (12) is arranged near the end position on each side of the third plate (10), and the guide surface (11) is located in the direction of the side surface (33) of the third plate.

9. The electric ship battery replacement hoisting device according to claim 1 or 2, characterized in that: A plurality of groups of hook components are arranged at intervals on the third plate (10).

10. The electric ship battery replacement hoisting device according to claim 1 or 2, characterized in that: The second telescopic component (16) of the hook assembly is connected to the control component (18).

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