Efficient hoisting device for ship

Abstract

The invention discloses an efficient hoisting device for ships, and relates to the technical field of marine cargo transportation, the efficient hoisting device comprises a base, the upper end face of the base is fixedly connected with a hoisting rack, the upper end of the hoisting rack is movably connected with a hoisting arm, the outer side wall of the hoisting arm is detachably connected with a mounting sleeve, the bottom end of the mounting sleeve is fixedly connected with a transmission box, and a bearing mechanism is arranged in the transmission box; a center bearing plate is arranged at the bottom end of the transmission box, the transmission box is fixedly connected with the center bearing plate through a bearing mechanism, telescopic sleeve rods are fixedly connected to the side walls of the left end and the right end of the center bearing plate correspondingly, L-shaped fixing blocks are fixedly connected to the ends, away from the center bearing plate, of the telescopic sleeve rods correspondingly, and clamping mechanisms are arranged at the upper ends of the two L-shaped fixing blocks correspondingly. The five groups of reinforcing ropes are distributed at the center and four corners of the central bearing plate, so that stress can be uniformly dispersed to five points, the problem of overload of a single hoisting point in a traditional hoisting mode is avoided, and structural damage or hoisting accidents possibly caused by overlarge local stress are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of marine cargo transportation, in particular to a high-efficiency lifting device for ships. Background Art

[0002] Ship is a general term for various vessels. Ships are vehicles that can sail or anchor in waters for transportation or operations. They have different technical performance, equipment and structural types according to different usage requirements. Ships are a man-made means of transportation that mainly operates in geographical waters. In addition, civilian ships are generally called ships, military ships are called ships, and small ships are called boats or boats. They are generally called ships or boats. The interior mainly includes accommodation space, support structure and drainage structure, and has a propulsion system that utilizes external or self-contained energy. The appearance is generally a streamlined envelope that is conducive to overcoming fluid resistance. The materials are constantly updated with the advancement of science and technology. In the early days, they were natural materials such as wood, bamboo, and hemp. In modern times, they are mostly steel, aluminum, fiberglass, acrylic and various composite materials.

[0003] After searching, it was found that the Chinese patent with application number CN202110126922.7 disclosed a ship lifting device and a ship, including: a fixed rod, the top of which is hinged with a first pulley; a reinforcing frame, which is fixedly arranged at the bottom of the fixed rod; a turntable, which is rotatably mounted on the reinforcing frame; a swing rod, one end of which is rotatably connected to the turntable, and the other end of which is hinged with a second pulley and a third pulley; a first drum, on which a first steel wire rope is wound, one end of which is passed through the first pulley and the second pulley in sequence upwards and connected to the top of the fixed rod; a second drum, on which a second steel wire rope is wound, one end of which is passed through the third pulley upwards and then connected to the hook downwards. This device can realize the angle adjustment of the swing rod in two directions, thereby greatly improving the lifting flexibility and facilitating use.

[0004] The above invention has the following problems:

[0005] The above patent uses a single steel wire rope to connect the hook, but a single rope has a unique load-bearing path. Once it breaks due to wear, overload or accidental breakage, the lifted cargo will fall instantly. In addition, the ship may encounter wind and waves or shaking at sea. The single rope has a weak buffering capacity for dynamic impact loads (such as sudden swinging), which can easily cause the rope to break or the cargo to continue swinging after lifting. In a narrow cabin or deck space, it will directly hit nearby crew members and cause unnecessary injuries. In addition, the above patent only has a single hook for lifting work, but the cargo on the ship is usually packed in shipping containers. The staff needs to connect the shipping containers to the hooks with slings, and there is no guarantee that the connection between the slings and the container can be completely balanced (such as inconsistent lengths or angle deviations), which causes the container to tilt and some slings to bear excessive loads, accelerating wear or breakage.

[0006] Therefore, those skilled in the art have provided an efficient hoisting device for ships to solve the problems raised in the above background art. Summary of the Invention

[0007] The purpose of the present invention is to provide an efficient hoisting device for ships to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] An efficient hoisting device for ships includes a base, a bearing mechanism, and a clamping mechanism. A hoisting frame is fixedly connected to the upper end surface of the base. A group of hydraulic push rods are equipped at the upper end of the hoisting frame. A hoisting arm is movably connected to the upper end of the hoisting frame. A group of hydraulic push rods are equipped between the hoisting frame and the hoisting arm. An installation sleeve is detachably connected to the outer side wall of the hoisting arm. A transmission box is fixedly connected to the bottom end of the installation sleeve. A bearing mechanism is arranged inside the transmission box. A central bearing plate is arranged at the bottom end of the transmission box. The transmission box is fixedly connected to the central bearing plate through the bearing mechanism. Telescopic sleeve rods are fixedly connected to the side walls of the left and right ends of the central bearing plate. L-shaped fixing blocks are fixedly connected to the ends of the telescopic sleeve rods far from the central bearing plate. Clamping mechanisms are arranged at the upper ends of the two L-shaped fixing blocks.

[0010] As a further scheme of the present invention: A limiting plate is fixedly connected inside the transmission box. A driving sprocket is rotatably connected to the center position of the outer wall of the limiting plate. Driven sprockets are arranged at both the left and right ends of the driving sprocket and are rotatably connected to the limiting plate. The two driven sprockets and the driving sprocket are all rotatably connected to the inner wall of the transmission box through transmission rods. Chains are movably connected to the outer sides of the two driven sprockets and the driving sprocket. The chains are movably connected to the limiting plate.

[0011] As a further scheme of the present invention: A second transmission rod is rotatably connected to the center position inside the transmission box, and one end of the second transmission rod penetrates through the limiting plate and is fixedly connected to the driving sprocket. First transmission rods are arranged on both the left and right sides of the second transmission rod. The first transmission rods penetrate through the limiting plate and are fixedly connected to the adjacent driven sprockets. The other ends of the first transmission rods are rotatably connected to the inner wall of the transmission box. A servo motor is fixedly connected to the end of the second transmission rod far from the driving sprocket. The servo motor is fixedly connected to the transmission box.

[0012] As a further scheme of the present invention: Storage rollers are fixedly connected to the outer side walls of the first transmission rods, and a group of storage rollers are fixedly connected to the outer side wall of the second transmission rod. Reinforcing ropes are wound inside the storage rollers, and the heads of the reinforcing ropes are fixedly connected to the storage rollers. Multiple branch ropes are fixedly connected to the ends of the storage rollers. The multiple reinforcing ropes and the branch ropes are all fixedly connected to the central bearing plate.

[0013] As a further solution of the present invention: two sets of adjusting blocks are arranged at the bottom ends of the L-shaped fixing blocks. An L-shaped support base is arranged at the bottom end of the adjusting block at the bottommost part. Hook blocks are fixedly connected to the bottom ends of the L-shaped support bases. The joints of adjacent L-shaped fixing blocks, two sets of adjusting blocks and the L-shaped support bases are all rotatably connected through adjusting shafts. Return springs are fixedly connected to the upper ends of the adjusting shafts. The other ends of the return springs are fixedly connected with limit clamping rods.

[0014] As a further solution of the present invention: sector-shaped limit discs are fixedly connected to the outer side walls of the L-shaped fixing blocks and the two sets of adjusting blocks. Multiple sets of limit holes are formed in the upper ends of the sector-shaped limit discs. The multiple sets of limit holes are arranged at equal intervals. Clamping balls are fixedly connected to the inner walls at the left and right ends of the limit holes, and corresponding card slots are formed in the outer side walls of the limit clamping rods. The card slots are all movably clamped with the clamping balls.

[0015] As a further solution of the present invention: electric push rods are fixedly connected to the front and rear side walls of the central bearing plate, cavities are formed in the side walls at both ends of the electric push rods, hinge rods are fixedly connected in the cavities, hinge seats are fixedly connected to the side walls at both ends of the L-shaped fixing blocks, and connecting rods are hinged between the hinge seats and the adjacent hinge rods.

[0016] As a further solution of the present invention: the driving sprocket is engaged with the chain, and the two driven sprockets are both engaged with the chain.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Due to the provision of the bearing mechanism, since the five reinforcing ropes are distributed at the center and four corners of the central bearing plate, the force can be evenly dispersed to five points, avoiding the problem of overloading of a single lifting point in the traditional lifting method. By dispersing the stress, the stress peak value of a single lifting point is reduced, and the structural damage or lifting accident caused by excessive local stress is reduced. Moreover, the ropes at the four corners form a "tension net", restricting the horizontal freedom of the goods and reducing the swinging amplitude (similar to a mechanical anti-sway system). The 6×19IWRC steel wire rope is used as the reinforcing rope, which has strong anti-extrusion ability and large bearing capacity, can effectively bear heavy lifting loads, and provides higher safety, especially suitable for heavy lifting tasks;

[0019] Through the control of the servo motor, multiple sets of transmission rods can rotate at a stable speed, driving the five reinforcing ropes to rise and fall synchronously to complete the lifting work;

[0020] 2. Due to the clamping mechanism, the electric push rod can automatically adjust the distance between two groups of L-shaped fixing blocks to adapt to goods of different sizes and adjust according to the shape of the goods (when adjusting for a standard container, the L-shaped fixing blocks are adjusted to be vertically straight to lock the corner fittings of the container) (when adjusting for a round container tank, it is adjusted to an arc shape for surrounding to prevent the tank body from rolling) (for bulk goods, it can be switched to the hook mode and used in combination with a mesh bag or sling), flexibly adapting to various shapes of goods. Through the action of the adjusting shaft and the return spring, the limit clamping rod can play a secondary limiting role during the clamping process, avoiding loosening or falling off of the goods due to deformation during the hoisting process and improving the operation safety. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of an efficient hoisting device for ships.

[0022] Figure 2 It is a schematic structural diagram of the mounting sleeve and the transmission box in an efficient hoisting device for ships.

[0023] Figure 3 It is a schematic structural diagram of the interior of the transmission box in an efficient hoisting device for ships.

[0024] Figure 4 It is a schematic structural diagram of the wire storage roller in an efficient hoisting device for ships.

[0025] Figure 5 It is a schematic structural diagram of the central bearing plate and the upper components in an efficient hoisting device for ships.

[0026] Figure 6 It is an enlarged schematic structural diagram of part A in an efficient hoisting device for ships.

[0027] Figure 7 It is an enlarged schematic structural diagram of part B in an efficient hoisting device for ships.

[0028] In the figure: 1, base; 2, crane frame; 3, boom; 4, mounting sleeve; 5, transmission box; 6, limit plate; 7, driven sprocket; 8, driving sprocket; 9, chain; 10, first transmission rod; 11, second transmission rod; 12, servo motor; 13, wire storage roller; 14, reinforcing rope; 15, branch rope; 16, central bearing plate; 17, telescopic sleeve rod; 18, L-shaped fixing block; 19, adjusting block; 20, L-shaped support seat; 21, hook; 22, electric push rod; 23, cavity; 24, articulated rod; 25, articulated seat; 26, connecting rod; 27, adjusting shaft; 28, return spring; 29, limit clamping rod; 30, sector-shaped limit disk; 31, limit hole; 32, clamping ball. Detailed Description of the Preferred Embodiment

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] Referring to Figure 1-7 This embodiment provides an efficient hoisting device for ships, including a base 1, a hoisting frame 2, a hoisting arm 3, a mounting sleeve 4, a transmission box 5, a limiting plate 6, a driven sprocket 7, a driving sprocket 8, a chain 9, a first transmission rod 10, a second transmission rod 11, a servo motor 12, a wire storage roller 13, a reinforcing rope 14, a branch rope 15, a central bearing plate 16, a telescopic sleeve rod 17, an L-shaped fixing block 18, an adjusting block 19, an L-shaped support seat 20, a hook 21, an electric push rod 22, a cavity 23, a hinged rod 24, a hinge seat 25, a connecting rod 26, an adjusting shaft 27, a return spring 28, a limiting clamping rod 29, a sector-shaped limiting disc 30, a limiting hole 31, and a clamping ball 32; including a base 1, a bearing mechanism, and a clamping mechanism. The upper end surface of the base 1 is fixedly connected with a hoisting frame 2. A group of hydraulic push rods are arranged at the upper end of the hoisting frame 2. The hoisting arm 3 is movably connected to the upper end of the hoisting frame 2. A group of hydraulic push rods are arranged between the hoisting frame 2 and the hoisting arm 3. The outer side wall of the hoisting arm 3 is detachably connected with a mounting sleeve 4. The bottom end of the mounting sleeve 4 is fixedly connected with a transmission box 5. A bearing mechanism is arranged inside the transmission box 5. A central bearing plate 16 is arranged at the bottom end of the transmission box 5. The transmission box 5 is fixedly connected with the central bearing plate 16 through the bearing mechanism. Telescopic sleeve rods 17 are fixedly connected to the side walls of the left and right ends of the central bearing plate 16. The ends of the telescopic sleeve rods 17 far from the central bearing plate 16 are fixedly connected with L-shaped fixing blocks 18. Clamping mechanisms are arranged at the upper ends of the two L-shaped fixing blocks 18.

[0032] Before the hoisting work, the staff needs to sleeved the mounting sleeve 4 on the outer side of the hoisting arm 3 and completely fix the mounting sleeve 4 to the hoisting arm 3 through fastening bolts for subsequent hoisting work.

[0033] It should be added that the base 1, the hoisting frame 2, the hoisting arm 3, and the two groups of hydraulic push rods are components provided at the upper end of the existing crane. The two groups of hydraulic push rods are used to adjust the horizontal position of the hoisting arm 3 and the angle between the hoisting arm 3 and the ground. The existing technology is adopted here and will not be described in detail.

[0034] Embodiment 2

[0035] Referring to Figure 1 、 2, 3, 4. This embodiment is based on the previous embodiment. The difference from the previous embodiment is that a limiting plate 6 is fixedly connected inside the transmission case 5. The center position of the outer wall of the limiting plate 6 is rotatably connected with a driving sprocket 8. There are driven sprockets 7 arranged at both the left and right ends of the driving sprocket 8, and the driven sprockets 7 are both rotatably connected with the limiting plate 6. The two groups of driven sprockets 7 and the driving sprocket 8 are all rotatably connected with the inner wall of the transmission case 5 through transmission rods. An endless chain 9 is movably connected to the outside of the two groups of driven sprockets 7 and the driving sprocket 8. The endless chain 9 is movably connected with the limiting plate 6. A second transmission rod 11 is rotatably connected to the center position inside the transmission case 5, and one end of the second transmission rod 11 penetrates through the limiting plate 6 and is fixedly connected with the driving sprocket 8. First transmission rods 10 are arranged on both the left and right sides of the second transmission rod 11. The first transmission rods 10 penetrate through the limiting plate 6 and are fixedly connected with the adjacent driven sprockets 7. The other ends of the first transmission rods 10 are rotatably connected with the inner wall of the transmission case 5. The end of the second transmission rod 11 far from the driving sprocket 8 is fixedly connected with a servo motor 12, and the servo motor 12 is fixedly connected with the transmission case 5. Fixed winding rollers 13 are fixedly connected to the outer side walls of the first transmission rods 10, and a group of fixed winding rollers 13 are fixedly connected to the outer side wall of the second transmission rod 11. Reinforcing ropes 14 are wound inside the fixed winding rollers 13, and the heads of the reinforcing ropes 14 are fixedly connected with the fixed winding rollers 13. Multiple branch ropes 15 are fixedly connected to the ends of the fixed winding rollers 13. The multiple reinforcing ropes 14 and the branch ropes 15 are all fixedly connected with the central bearing plate 16. The driving sprocket 8 meshes with the endless chain 9, and the two groups of driven sprockets 7 both mesh with the endless chain 9;

[0036] Start the servo motor 12. The servo motor 12 drives the second transmission rod 11 connected to the power output end to rotate. The second transmission rod 11 is fixedly connected with the driving sprocket 8, thereby driving the driving sprocket 8 to rotate synchronously. The driving sprocket 8 and the two groups of driven sprockets 7 both mesh with the endless chain 9. When the driving sprocket 8 rotates, it drives the endless chain 9 to move continuously, and the endless chain 9 is limited by the driven sprockets 7 at both ends. When moving, it drives the driven sprockets 7 to rotate synchronously with the driving sprocket 8. Finally, it realizes the synchronous rotation of the first transmission rods 10 and the second transmission rod 11 above the driven sprockets 7 and the driving sprocket 8, makes the multiple fixed winding rollers 13 perform circular motion, continuously moves the reinforcing ropes 14 downward, and drives the central bearing plate 16 and the clamping mechanism above to move downward until it reaches a height suitable for clamping goods;

[0037] It should be added that 6×19IWRC steel wire ropes are used, with an independent steel wire rope in the core, strong anti-extrusion ability and large load-bearing capacity, suitable for heavy lifting;

[0038] It should be added that the five reinforcing ropes 14 are respectively located at the center position and the four corners of the central bearing plate 16, and the force is dispersed to 5 points, reducing the stress peak value of a single lifting point and prolonging the service life of the lifting tool and the goods.

[0039] Embodiment 3

[0040] Reference Figure 1 , 5 , 6, 7, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that two groups of adjustment blocks 19 are provided at the bottom end of the L-shaped fixed block 18, and an L-shaped support seat 20 is provided at the bottom end of the adjustment block 19 located at the bottom, and the bottom end of the L-shaped support seat 20 is fixedly connected with a hook 21, and the adjacent L-shaped fixed block 18, the two groups of adjustment blocks 19 and the L-shaped support seat 20 are rotatably connected through an adjustment shaft 27, and the upper end of the adjustment shaft 27 is fixedly connected with a return spring 28, and the other end of the return spring 28 is fixedly connected with a limited position clamping rod 29, and the outer side walls of the L-shaped fixed block 18 and the two groups of adjustment blocks 19 are fixedly connected with The fan-shaped limit plate 30 has a plurality of limit holes 31 at the upper end thereof, and the plurality of limit holes 31 are arranged at equal intervals. The inner walls at both ends of the limit holes 31 are fixedly connected with a card ball 32, and the outer walls of the limit card rod 29 are provided with a corresponding card slot, and the card slot is movably connected with the card ball 32. The side walls at both ends of the center bearing plate 16 are fixedly connected with the electric push rod 22, and the side walls at both ends of the electric push rod 22 are provided with a cavity 23, and the cavity 23 is fixedly connected with a hinge rod 24. The side walls at both ends of the L-shaped fixing block 18 are fixedly connected with a hinge seat 25, and a connecting rod 26 is hinged between the hinge seat 25 and the adjacent hinge rod 24;

[0041] The electric push rod 22 is started, and the electric push rod 22 is extended and retracted. When extending and retracting, the hinged rod 24 inside the cavity 23 opened on the outer wall of the electric push rod 22 drives the connecting rod 26 hinged at the upper end and drives the two groups of L-shaped fixing blocks 18 and the upper parts to move horizontally toward the end close to the center load-bearing plate 16 or the end away from the center load-bearing plate 16 through the hinged cooperation of the hinged seat 25 adjacent to the L-shaped support seat 20 at the other end. When moving, the telescopic sleeve rod 17 between the L-shaped fixing block 18 and the center load-bearing plate 16 will shrink according to the horizontal movement of the L-shaped fixing block 18, and finally the spacing between the two groups of L-shaped fixing blocks 18 can be adjusted to suit goods of different sizes.

[0042] When it is necessary to clamp the cargo, the angles of the L-shaped fixing block 18, the adjusting block 19 and the L-shaped supporting seat 20 can be adjusted according to the shape of the cargo container (container, container tank or bulk cargo);

[0043] Pull the return spring 28 fixedly connected to the upper end of the adjusting shaft 27, so that the return spring 28 elongates according to its own characteristics and drives the limit clamping rod 29 to move synchronously, disengaging from the currently clamped limit hole 31, and fine-tuning the angles of the corresponding L-shaped fixing block 18, adjusting block 19 or L-shaped support seat 20 through the rotational connection of the adjusting shaft 27 (for example, when clamping a container, the L-shaped fixing block 18, adjusting block 19 and L-shaped support seat 20 can be adjusted to be in a vertical straight line; when clamping a container tank, the L-shaped fixing block 18, adjusting block 19 and L-shaped support seat 20 can be adjusted to be in an arc shape). After adjustment, release the limit clamping rod 29, so that the limit clamping rod 29 snaps into the limit hole 31 matching the current state. After the limit clamping rod 29 enters the limit hole 31, it is secondarily limited through the clamping of the clamping ball 32 and the clamping groove to prevent deformation during the hoisting process;

[0044] It should be added that when hoisting a container and a container tank, a clamping structure can be used instead of the common hook 21. When hoisting ordinary equipment or bulk goods, the hook 21 at the bottom of the L-shaped support seat 20 can continue to be used for work;

[0045] It should be added that the L-shaped support seat 20 is located at the bottom of the overall clamping structure. Due to its L-shaped characteristics, it can provide a certain supporting force for the container to prevent the container from detaching;

[0046] It should be added that the return spring 28 is a spring with a specific strength. During hoisting work, due to having multiple stress points, it can reduce the phenomenon that the tensile force is insufficient due to a relatively large local pressure on the spring;

[0047] It should be added that the joints of the hinge seat 25, hinge rod 24 and connecting rod 26 and the telescopic sleeve rod 17 all have relatively large damping forces (an adult male cannot adjust the hinge seat 25, hinge rod 24 and connecting rod 26 by hand), and the position needs to be adjusted by the thrust of the electric push rod 22.

[0048] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0049] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An efficient lifting device for a ship, comprising a base (1), a bearing mechanism and a clamping mechanism, characterized in that: The upper end surface of the base (1) is fixedly connected to a crane frame (2), the upper end of the crane frame (2) is equipped with a group of hydraulic push rods, the upper end of the crane frame (2) is movably connected to a boom (3), a group of hydraulic push rods are equipped between the crane frame (2) and the boom (3), the outer wall of the boom (3) is detachably connected to a mounting sleeve (4), the bottom end of the mounting sleeve (4) is fixedly connected to a transmission box (5), a bearing mechanism is arranged inside the transmission box (5), a central bearing plate (16) is arranged at the bottom end of the transmission box (5), the transmission box (5) is fixedly connected to the central bearing plate (16) through the bearing mechanism, the left and right side walls of the central bearing plate (16) are fixedly connected to telescopic sleeve rods (17), the ends of the telescopic sleeve rods (17) away from the central bearing plate (16) are fixedly connected to L-shaped fixing blocks (18), and the upper ends of the two groups of L-shaped fixing blocks (18) are both provided with clamping mechanisms.

2. The efficient hoisting device for a ship according to claim 1, characterized in that: The bearing mechanism comprises a wire storage roller (13), a reinforcement rope (14) and a branch rope (15); a limit plate (6) is fixedly connected inside the transmission box (5); a driving sprocket (8) is rotatably connected to the center of the outer wall of the limit plate (6); driven sprockets (7) are arranged at both left and right ends of the driving sprocket (8), and the driven sprockets (7) are rotatably connected to the limit plate (6); the two groups of driven sprockets (7) and the driving sprocket (8) are rotatably connected to the inner wall of the transmission box (5) through a transmission rod; the two groups of driven sprockets (7) and the driving sprocket (8) are movably connected to the outer sides of the two groups of driven sprockets (7) and the driving sprocket (8); and the chain (9) is movably connected to the limit plate (6).

3. The efficient hoisting device for a ship according to claim 2, characterized in that: A second transmission rod (11) is rotatably connected to the center position of the transmission box (5), and one end of the second transmission rod (11) passes through a limit plate (6) and is fixedly connected to a driving sprocket (8). First transmission rods (10) are arranged on both sides of the second transmission rod (11). The first transmission rods (10) pass through the limit plate (6) and are fixedly connected to adjacent driven sprockets (7). The other ends of the first transmission rods (10) are rotatably connected to the inner wall of the transmission box (5). One end of the second transmission rod (11) away from the driving sprocket (8) is fixedly connected to a servo motor (12), and the servo motor (12) is fixedly connected to the transmission box (5).

4. The efficient hoisting device for a ship according to claim 3, characterized in that: The outer wall of the first transmission rod (10) is fixedly connected to a wire storage roller (13), and the outer wall of the second transmission rod (11) is fixedly connected to a group of wire storage rollers (13); a reinforcement rope (14) is wound inside the wire storage roller (13), and the head end of the reinforcement rope (14) is fixedly connected to the wire storage roller (13); the end of the wire storage roller (13) is fixedly connected to multiple groups of branch ropes (15); and the multiple groups of reinforcement ropes (14) and the branch ropes (15) are fixedly connected to the central bearing plate (16).

5. The efficient hoisting device for a ship according to claim 1, characterized in that: The clamping mechanism comprises an L-shaped fixing block (18), an adjusting block (19) and an L-shaped supporting seat (20); two groups of adjusting blocks (19) are arranged at the bottom end of the L-shaped fixing block (18); an L-shaped supporting seat (20) is arranged at the bottom end of the adjusting block (19) located at the bottommost; and a hook (21) is fixedly connected to the bottom end of the L-shaped supporting seat (20).

6. The efficient hoisting device for a ship according to claim 5, characterized in that: The adjacent L-shaped fixed blocks (18), the two groups of adjustment blocks (19) and the L-shaped support seat (20) are rotatably connected via an adjustment shaft (27), the upper end of the adjustment shaft (27) is fixedly connected to a return spring (28), and the other end of the return spring (28) is fixedly connected to a limit clamping rod (29).

7. The efficient hoisting device for a ship according to claim 6, characterized in that: The outer side walls of the L-shaped fixing block (18) and the two groups of adjusting blocks (19) are fixedly connected with a sector-shaped limiting disk (30), and the upper end of the sector-shaped limiting disk (30) is provided with a plurality of groups of limiting holes (31), and the plurality of groups of limiting holes (31) are arranged at equal intervals. The inner walls of the left and right ends of the limiting holes (31) are fixedly connected with a clamping ball (32), and the outer side walls of the limiting clamping rod (29) are provided with a corresponding clamping groove, and the clamping groove is movably clamped with the clamping ball (32).

8. The efficient hoisting device for a ship according to claim 1, characterized in that: The front and rear end side walls of the central bearing plate (16) are fixedly connected to electric push rods (22), and the side walls at both ends of the electric push rods (22) are provided with cavities (23), and hinge rods (24) are fixedly connected in the cavities (23). The side walls at both ends of the L-shaped fixing block (18) are fixedly connected to hinge seats (25), and connecting rods (26) are hinged between the hinge seats (25) and the adjacent hinge rods (24).

9. The efficient hoisting device for a ship according to claim 2, characterized in that: The driving sprocket (8) is meshed with the chain (9).

10. The efficient hoisting device for a ship according to claim 2, characterized in that: The two groups of driven sprockets (7) are meshed with the chain (9).

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