Ship keel hoisting tool and transferring method

Abstract

The invention relates to a ship keel hoisting tool which comprises a shackle and a supporting piece, the supporting piece is fixed to the shackle through a fastening piece, the supporting piece is provided with a clamping face, and the clamping face is used for clamping a rib plate of a keel. According to the ship keel hoisting tool, the supporting piece is provided with the clamping face, so that the rib plate clamped on the supporting piece is not prone to sliding, the rib plate is effectively prevented from generating large deformation in the hoisting process, meanwhile, the contact area of the rib plate and the ship keel hoisting tool is increased, the safety of the ship keel hoisting tool in the hoisting process is improved, and the hoisting efficiency is improved. The technical problems that in the prior art, in the lifting process, a rib plate can deform under the action of a lifting ring, safety risks are generated at the joint of the lifting ring due to attribute changes of a heated area of base metal, meanwhile, a large amount of manpower and material resources are needed for welding and manufacturing of the lifting ring, and the production cost is high are solved.

Description

Technical Field

[0001] The present application relates to the technical field of shipbuilding, and in particular to a ship keel lifting tool and a transport method. Background Art

[0002] At present, due to the influence of factors such as hull structure, hull segmentation and material, the ship construction methods are different during the ship section construction process. During the large ship keel section construction process, the ship keel needs to be hoisted, rotated and assembled.

[0003] In the related technology, the keel segment structure is complex, the arrangement is dense, the welding workload is large, and it is difficult to lift and turn over. The ship keel is usually lifted, turned over and transported by welding lifting rings. After the welding is completed on the cradle, two lifting points are usually set at appropriate positions on the left and right sides of the transverse bulkheads at the bow and stern ends of the segment, and then four lifting rings are welded. Finally, the ship keel segment is lifted to the ground by a crane. The lifting rings are made of the same material as the segmented keel. Surface flaw detection is required after the lifting rings are welded. During the lifting process, the ribs will be deformed under the action of the lifting rings. The connection of the lifting rings will cause safety risks due to changes in the properties of the heated area of ​​the parent material. At the same time, the welding and production of the lifting rings require a lot of manpower and material resources, and the production cost is relatively high.

[0004] Therefore, it is necessary to design a new ship keel lifting tool to overcome the above problems. Summary of the invention

[0005] The present application provides a ship keel lifting tool and transfer method, which can solve the technical problems in the related technology that the ribs will be deformed under the action of the lifting rings during the lifting process, the connection of the lifting rings will cause safety risks due to the change of properties of the heated area of ​​the parent material, and at the same time, the welding and production of the lifting rings requires a lot of manpower and material resources, and the production cost is relatively high.

[0006] In a first aspect, an embodiment of the present application provides a ship keel lifting tool, which includes: a shackle and a support member, wherein the support member is fixed to the shackle by a fastener, and the support member has a clamping surface, and the clamping surface is used to clamp the rib of the keel.

[0007] Among them, the fastener can be set as a cross pin, and the cross pin cooperates with the nut to fix the shackle and the support member. A certain gap is left between the nut and the shackle to facilitate the flexible rotation of the shackle. The rib plate is clamped between the clamping surfaces of the support member, so that the rib plate is not easy to slide, and the rib plate is effectively prevented from causing a large deformation during the lifting process. At the same time, the contact area between the rib plate and the ship keel lifting fixture is increased, thereby improving the safety of the ship keel lifting fixture during lifting. The ship keel lifting fixture has a simple and practical structure, and is flexible and light to operate. In the process of manufacturing the ship keel sections, it can replace the lifting ring to complete the lifting, turning over and transportation of the keel, thereby improving construction efficiency and saving a lot of economic and time costs.

[0008] In combination with the first aspect, in one embodiment, the support member includes a first assembly and a second assembly, the first assembly is plugged into the second assembly, the first assembly and the second assembly are fixed by the fastener and the shackle, the first assembly and the second assembly are both provided with the clamping surface, and the clamping surface of the first assembly and the clamping surface of the second assembly form a rib clamping space.

[0009] Wherein, the fastener passes through the first assembly and the second assembly, so that the first assembly and the second assembly are fixed to the shackle, and the rib clamping space is enclosed between the clamping surface of the first assembly and the clamping surface of the second assembly, so that the rib is limited in the rib clamping space and is not easy to slide, while increasing the contact area between the rib and the support.

[0010] In combination with the first aspect, in one embodiment, the first assembly includes a first annular plate and a first steel pipe, the first annular plate is inserted into the first steel pipe, and the first annular plate is fixed to the first steel pipe, and the clamping surface is provided on the side of the first annular plate close to the second assembly.

[0011] Among them, the first annular plate and the first steel pipe can be welded and fixed, the first steel pipe can be made of Q345 steel, and the wall thickness of the first steel pipe can be set to be no less than 10㎜, so as to further improve the safety of the ship keel lifting tool during lifting, the length of the first steel pipe on both sides of the first annular plate along its axial direction can be set to be equal, and can also be set to be unequal, and the length of a section of the first steel pipe along its axial direction close to the second assembly can be set to 16-18㎜, so that the rib clamping space can stably clamp the ribs of different thicknesses, and the thickness of the ribs can be set to 14-18㎜.

[0012] In combination with the first aspect, in one embodiment, the second assembly includes a second annular plate and a second steel pipe, the second annular plate is inserted into the second steel pipe, the second annular plate is fixed to the second steel pipe, and the second steel pipe is inserted into the first steel pipe, and the clamping surface is provided on the side of the second annular plate close to the first annular plate.

[0013] Among them, the second annular plate and the second steel pipe can be welded and fixed, the second steel pipe can be made of Q345 steel, and the wall thickness of the second steel pipe can be set to be no less than 10㎜, so as to further improve the safety of the ship keel lifting tool during lifting, and the first steel pipe and the second steel pipe are plugged into each other, so that the first assembly and the second assembly are combined to form a whole, so that the clamping surface of the second assembly can be combined with the clamping surface of the first assembly to enclose the rib clamping space.

[0014] In combination with the first aspect, in one embodiment, the outer diameter of the second steel pipe is smaller than the inner diameter of the first steel pipe. The outer diameter of the second steel pipe can be set to be smaller than the inner diameter of the first steel pipe, so that the second steel pipe can pass through the inner hole of the first steel pipe and be plugged therewith, so as to facilitate adjustment of the relative positions of the first steel pipe and the second steel pipe on the fastener.

[0015] In combination with the first aspect, in one implementation, the movable gap d between the first steel pipe and the second steel pipe along the radial direction is set to 5 to 10 mm.

[0016] Among them, the movable gap d between the first steel pipe and the second steel pipe in the radial direction can be set to 5-10 mm. Preferably, the movable gap d between the first steel pipe and the second steel pipe in the radial direction is set to 8 mm, which is convenient for the first steel pipe and the second steel pipe to be assembled, and at the same time, when the ship keel lifting tool is under force during lifting, the movable margin between the first assembly and the second assembly is increased to avoid jamming and improve the flexibility of the ship keel lifting tool. In other embodiments, the inner diameter of the first steel pipe can be set to be equal to the outer diameter of the second steel pipe, and the movable gap d between the first steel pipe and the second steel pipe in the radial direction is a reserved installation error.

[0017] In combination with the first aspect, in one implementation, the length of the second steel tube is greater than the length of the first steel tube.

[0018] Among them, the length of the second steel pipe along its axial direction is greater than the length of the first steel pipe along its axial direction, so that after the first steel pipe and the second steel pipe are plugged into each other, the end of the first assembly close to the shackle does not exceed the end of the second assembly close to the shackle, thereby improving the stability of the ship keel lifting tool in clamping the rib.

[0019] In combination with the first aspect, in one embodiment, the shackle includes a latch portion and a U-shaped connecting portion, both ends of the U-shaped connecting portion are connected to the latch portion, and the two latch portions enclose a support member clamping space and are fixed by the fastener.

[0020] The support is limited in the support clamping space by the fastener, and there is a certain gap between the first assembly and the latch portion, and there is a certain gap between the second assembly and the latch portion, so that the support and the shackle can be assembled conveniently, so that the ship keel lifting tool can be flexibly rotated during lifting. In other embodiments, the latch portion can abut against the first assembly and the second assembly.

[0021] In a second aspect, an embodiment of the present application provides a method for lifting and transporting a ship keel, which comprises the following steps:

[0022] Step 1: Install the ship keel lifting tooling to the keel so that the support members clamp the ribs of the keel and fix them with fasteners and shackles.

[0023] Among them, the lightening holes symmetrically arranged at both ends of the bow and stern of the ship are selected as the lifting point positions, the ship keel lifting tooling is installed on the lightening holes, the support member passes through the lightening holes and clamps the rib plate, and then the support member and the shackle are fixed by the fastener.

[0024] Step 2: Lift the keel from the frame and transport it.

[0025] The steel wire rope is passed through the shackle and connected to the hook of the lifting device, and the keel is lifted from the tire frame and transported by the lifting device.

[0026] In combination with the second aspect, in one embodiment, the support member includes a first assembly and a second assembly, and the step of making the support member clamp the rib of the keel and fix it with the shackle through fasteners includes: plugging the first assembly and the second assembly, clamping the rib between the first assembly and the second assembly, and fixing the first assembly and the second assembly with the shackle through fasteners.

[0027] Wherein, the fastener can be set as a transverse pin, the first assembly is passed through one side of the lightening hole, and the second assembly is passed through the other side of the lightening hole, and the first assembly and the second assembly are plugged in, the clamping surface of the first assembly and the clamping surface of the second assembly form a rib clamping space, and then the transverse pin is passed through the first assembly and the second assembly, and connected with the nut, so that the first assembly and the second assembly are fixed to the buckle, that is, the assembly of the ship keel lifting tooling is completed.

[0028] The beneficial effects brought by the technical solution provided by the embodiments of the present application include:

[0029] By arranging a clamping surface on the support member, the rib plate clamped in the support member is not easy to slide, which effectively prevents the rib plate from being greatly deformed during the lifting process. At the same time, the contact area between the rib plate and the ship keel lifting fixture is increased, thereby improving the safety of the ship keel lifting fixture during lifting. This solves the technical problems in the related technology that the rib plate will be deformed under the action of the lifting ring during the lifting process, and the connection of the lifting ring will cause safety risks due to the change in the properties of the heated area of ​​the parent material. At the same time, the welding and production of the lifting ring requires a lot of manpower and material resources, and the production cost is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the structure of a ship keel lifting tool provided in an embodiment of the present application;

[0032] Figure 2 A front view of a first assembly provided in an embodiment of the present application;

[0033] Figure 3 A side view of a first assembly provided for an embodiment of the present application;

[0034] Figure 4 A front view of a second assembly provided in an embodiment of the present application;

[0035] Figure 5 A side view of a second assembly provided in an embodiment of the present application;

[0036] Figure 6 A side view of a first assembly and a second assembly provided in an embodiment of the present application being sleeved together;

[0037] Figure 7 A schematic diagram of the structure of a ship keel lifting tool installed on a keel provided in an embodiment of the present application.

[0038] In the figure: 1, shackle; 11, latch portion; 12, U-shaped connecting portion; 2, support member; 21, clamping surface; 22, first assembly; 221, first annular plate; 222, first steel pipe; 23, second assembly; 231, second annular plate; 232, second steel pipe; 3, fastener; 4, rib plate; 5, tire frame; 6, nut. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The embodiments of the present application provide a ship keel lifting tool and a transfer method, which can solve the technical problems that the ribs will be deformed under the action of the lifting rings during the lifting process, the connection of the lifting rings will cause safety risks due to the change in the properties of the heated area of ​​the parent material, and the welding and production of the lifting rings requires a lot of manpower and material resources, resulting in high production costs.

[0041] See also Figure 1 As shown, an embodiment of the present application provides a ship keel lifting tool, which includes: a shackle 1 and a support member 2, wherein the support member 2 is fixed to the shackle 1 by a fastener 3, and the support member 2 has a clamping surface 21, and the clamping surface 21 is used to clamp the rib 4 of the keel.

[0042] In this embodiment, the fastener 3 can be set as a cross pin, and the cross pin cooperates with the nut 6 to fix the shackle 1 and the support member 2. A certain gap is left between the nut 6 and the shackle 1 to facilitate the flexible rotation of the shackle 1. The rib plate 4 is clamped between the clamping surfaces 21 of the support member 2, so that the rib plate 4 is not easy to slide, effectively preventing the rib plate 4 from causing a large deformation during the lifting process, and at the same time increasing the contact area between the rib plate 4 and the ship keel lifting fixture, thereby improving the safety of the ship keel lifting fixture during lifting. The ship keel lifting fixture has a simple and practical structure, flexible and light operation, and can replace the lifting ring to complete the lifting, turning over and transportation of the keel during the segmented manufacturing process of the ship keel, thereby improving construction efficiency and saving a lot of economic and time costs.

[0043] In this embodiment, the clamping surface 21 is provided on the support member 2, so that the rib plate 4 clamped by the support member 2 is not easy to slide, and the rib plate 4 is effectively prevented from being greatly deformed during the lifting process. At the same time, the contact area between the rib plate 4 and the ship keel lifting tool is increased, thereby improving the safety of the ship keel lifting tool during lifting. This solves the technical problems in the related technology that the rib plate 4 will be deformed under the action of the lifting ring during the lifting process, the connection of the lifting ring will cause safety risks due to the change of the properties of the heated area, and the welding and production of the lifting ring requires a lot of manpower and material resources, resulting in high production costs.

[0044] Further, see Figure 1 and Figure 6As shown, in some embodiments, the support member 2 includes a first assembly 22 and a second assembly 23, the first assembly 22 and the second assembly 23 are plugged into each other, the first assembly 22 and the second assembly 23 are fixed to the shackle 1 through the fastener 3, the first assembly 22 and the second assembly 23 are both provided with the clamping surface 21, and the clamping surface 21 of the first assembly 22 and the clamping surface 21 of the second assembly 23 form a rib clamping space.

[0045] In this embodiment, the fastener 3 passes through the first assembly 22 and the second assembly 23, so that the first assembly 22 and the second assembly 23 are fixed to the shackle 1, and the clamping surface 21 of the first assembly 22 and the clamping surface 21 of the second assembly 23 enclose the rib clamping space, so that the rib 4 is limited in the rib clamping space and is not easy to slide, while increasing the contact area between the rib 4 and the support 2.

[0046] Further, see Figure 1-3 As shown, in some embodiments, the first assembly 22 includes a first annular plate 221 and a first steel pipe 222, the first annular plate 221 is inserted into the first steel pipe 222, and the first annular plate 221 is fixed to the first steel pipe 222, and the clamping surface 21 is provided on one side of the first annular plate 221 close to the second assembly 23.

[0047] In this embodiment, the first annular plate 221 and the first steel pipe 222 can be welded and fixed, the first steel pipe 222 can be made of Q345 steel, and the wall thickness of the first steel pipe 222 can be set to be no less than 10 mm to further improve the safety of the ship keel lifting tool during lifting. The lengths of the first steel pipe 222 on both sides of the first annular plate 221 along its axial direction can be set to be equal or unequal. The length of a section of the first steel pipe 222 along its axial direction close to the second assembly 23 can be set to 16 to 18 mm, so that the rib clamping space can stably clamp the ribs 4 of different thicknesses, and the thickness of the ribs 4 can be set to 14 to 18 mm.

[0048] Further, see Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments, the second assembly 23 includes a second annular plate 231 and a second steel pipe 232, the second annular plate 231 is plugged into the second steel pipe 232, the second annular plate 231 is fixed to the second steel pipe 232, and the second steel pipe 232 is plugged into the first steel pipe 222, and the clamping surface 21 is provided on the side of the second annular plate 231 close to the first annular plate 221.

[0049] In this embodiment, the second annular plate 231 and the second steel pipe 232 can be welded and fixed, the second steel pipe 232 can be made of Q345 steel, and the wall thickness of the second steel pipe 232 can be set to be no less than 10 mm to further improve the safety of the ship keel lifting tool during lifting. The first steel pipe 222 and the second steel pipe 232 are plugged into each other, so that the first assembly 22 and the second assembly 23 are combined to form a whole, so that the clamping surface 21 of the second assembly 23 can be combined with the clamping surface 21 of the first assembly 22 to enclose the rib clamping space.

[0050] Further, see Figure 6 As shown, in some embodiments, the outer diameter of the second steel tube 232 is smaller than the inner diameter of the first steel tube 222. In this embodiment, the outer diameter of the second steel tube 232 can be set to be smaller than the inner diameter of the first steel tube 222, so that the second steel tube 232 can pass through the inner hole of the first steel tube 222 and be plugged therewith, so as to facilitate the adjustment of the relative positions of the first steel tube 222 and the second steel tube 232 on the fastener 3.

[0051] Further, see Figure 6 As shown, in some embodiments, the movable gap d between the first steel tube 222 and the second steel tube 232 along the radial direction is set to 5-10 mm.

[0052] In this embodiment, the radial clearance d between the first steel tube 222 and the second steel tube 232 can be set to 5-10 mm. Preferably, the radial clearance d between the first steel tube 222 and the second steel tube 232 is set to 8 mm, which is convenient for the first steel tube 222 and the second steel tube 232 to be assembled. At the same time, when the ship keel lifting tool is subjected to force during lifting, the activity margin between the first assembly 22 and the second assembly 23 is increased to avoid jamming and improve the flexibility of the ship keel lifting tool. In other embodiments, the inner diameter of the first steel tube 222 can be set to be equal to the outer diameter of the second steel tube 232, and the radial clearance d between the first steel tube 222 and the second steel tube 232 is a reserved installation error.

[0053] Further, see Figure 6 As shown, in some embodiments, the length of the second steel tube 232 is greater than the length of the first steel tube 222 .

[0054] In this embodiment, the length of the second steel pipe 232 along its axial direction is greater than the length of the first steel pipe 222 along its axial direction, so that after the first steel pipe 222 and the second steel pipe 232 are connected, the end of the first assembly 22 close to the shackle 1 does not exceed the end of the second assembly 23 close to the shackle 1, thereby improving the stability of the ship keel lifting tool in clamping the rib 4.

[0055] Further, see Figure 1 As shown, in some embodiments, the shackle 1 includes a latch portion 11 and a U-shaped connecting portion 12, both ends of the U-shaped connecting portion 12 are connected to the latch portion 11, and the two latch portions 11 enclose a support member clamping space and are fixed by the fastener 3.

[0056] In this embodiment, the support member 2 is limited in the support member clamping space by the fastener 3, and there is a certain gap between the first assembly 22 and the latch portion 11, and there is a certain gap between the second assembly 23 and the latch portion 11, which facilitates the assembly of the support member 2 and the shackle 1, so that the ship keel lifting tool can be flexibly rotated during lifting. In other embodiments, the latch portion 11 can abut against the first assembly 22 and the second assembly 23.

[0057] See also Figure 1 and Figure 7 As shown, the embodiment of the present application provides a method for lifting and transporting a ship keel, which comprises the following steps:

[0058] The first step: install the ship keel lifting tool to the keel, so that the support member 2 clamps the rib 4 of the keel and fixes it with the shackle 1 through the fastener 3.

[0059] In this embodiment, the lightening holes symmetrically arranged at both ends of the bow and stern of the ship are selected as the lifting point positions, the ship keel lifting tooling is installed on the lightening holes, the support member 2 passes through the lightening holes and clamps the rib 4, and then the support member 2 and the shackle 1 are fixed by the fastener 3.

[0060] Step 2: Lift the keel from the tire frame 5 and transport it.

[0061] In this embodiment, a steel wire rope is passed through the shackle 1 and connected to a hook of a lifting device, and the keel is lifted from the tire frame 5 and transported by the lifting device.

[0062] Further, see Figure 1 and Figure 7As shown, in some embodiments, the support member 2 includes a first assembly 22 and a second assembly 23, and the process of making the support member 2 clamp the rib 4 of the keel and fix it to the shackle 1 through the fastener 3 includes: plugging the first assembly 22 and the second assembly 23, clamping the rib 4 between the first assembly 22 and the second assembly 23, and fixing the first assembly 22 and the second assembly 23 to the shackle 1 through the fastener 3.

[0063] In this embodiment, the fastener 3 can be set as a transverse pin, and the first assembly 22 is passed through one side of the lightening hole, and the second assembly 23 is passed through the other side of the lightening hole, and the first assembly 22 and the second assembly 23 are plugged in, and the clamping surface 21 of the first assembly 22 and the clamping surface 21 of the second assembly 23 form a rib clamping space, and then the transverse pin is passed through the first assembly 22 and the second assembly 23, and connected with the nut 6, so that the first assembly 22 and the second assembly 23 are fixed to the buckle 1, that is, the assembly of the ship keel lifting tooling is completed.

[0064] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0065] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0066] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A ship keel lifting tool, characterized in that: It includes: Shackle (1); A support member (2), wherein the support member (2) is fixed to the shackle (1) via a fastener (3), and the support member (2) has a clamping surface (21), and the clamping surface (21) is used to clamp the rib plate (4) of the keel.

2. The ship keel lifting tool according to claim 1, characterized in that: The support member (2) comprises a first assembly (22) and a second assembly (23), the first assembly (22) and the second assembly (23) are plugged into each other, the first assembly (22) and the second assembly (23) are fixed to the shackle (1) via the fastener (3), The first assembly (22) and the second assembly (23) are both provided with the clamping surface (21), and the clamping surface (21) of the first assembly (22) and the clamping surface (21) of the second assembly (23) enclose a rib clamping space.

3. The ship keel lifting tool as claimed in claim 2, characterized in that: The first assembly (22) comprises a first annular plate (221) and a first steel pipe (222); the first annular plate (221) is plugged into the first steel pipe (222), and the first annular plate (221) is fixed to the first steel pipe (222); and the clamping surface (21) is provided on a side of the first annular plate (221) close to the second assembly (23).

4. The ship keel lifting tool as claimed in claim 3, characterized in that: The second assembly (23) comprises a second annular plate (231) and a second steel pipe (232); the second annular plate (231) is plugged into the second steel pipe (232); the second annular plate (231) and the second steel pipe (232) are fixed, and the second steel pipe (232) and the first steel pipe (222) are plugged into each other; the clamping surface (21) is provided on a side of the second annular plate (231) close to the first annular plate (221).

5. The ship keel lifting tool as claimed in claim 4, characterized in that: The outer diameter of the second steel pipe (232) is smaller than the inner diameter of the first steel pipe (222).

6. The ship keel lifting tool as claimed in claim 5, characterized in that: The movable gap d between the first steel tube (222) and the second steel tube (232) along the radial direction is set to 5 to 10 mm.

7. The ship keel lifting tool as claimed in claim 4, characterized in that: The length of the second steel tube (232) is greater than the length of the first steel tube (222).

8. The ship keel lifting tool according to claim 1, characterized in that: The shackle (1) comprises a latch portion (11) and a U-shaped connecting portion (12), the two ends of the U-shaped connecting portion (12) being connected to the latch portion (11), the two latch portions (11) enclosing a support member clamping space and being fixed by the fastener (3).

9. A method for lifting and transporting a ship keel, characterized in that: It includes the following steps: Installing the ship keel lifting tool as claimed in claim 1 to the keel, so that the support member (2) clamps the rib (4) of the keel and is fixed to the shackle (1) by the fastener (3); The keel is lifted from the tire frame (5) and transported.

10. The method for lifting and transporting a ship keel according to claim 9, characterized in that: The support member (2) comprises a first assembly member (22) and a second assembly member (23), and the process of enabling the support member (2) to clamp the rib plate (4) of the keel and fix it with the shackle (1) via the fastener (3) comprises: The first assembly (22) and the second assembly (23) are plugged together, a rib plate (4) is clamped between the first assembly (22) and the second assembly (23), and the first assembly (22) and the second assembly (23) are fixed to the shackle (1) by a fastener (3).

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