A cabin segment variable center of mass hoisting device and method

Abstract

The present application relates to cabin segment hoisting tool technical field, disclose a cabin segment variable center of mass hoisting device and method. The device comprises a ring-shaped hoisting beam frame (2), an adjustable hoisting beam (3), an adjustable hoisting ring (1), two inclined hoisting arms (4), a pin shaft (5), an adapter block A (7), an adapter block B (6) and a butterfly locking mechanism (8). The adjustable hoisting beam (3) and the adjustable hoisting ring (1) are adjusted along two directions perpendicular to each other and are positioned by tooth engagement; the threaded rods of the three sets of butterfly locking mechanisms (8) provide the compression force for maintaining the tooth engagement. The inclined hoisting arms (4) rotate around the pin shaft (5) to adapt to cabin segments of different diameters, the adapter block A (7) and the adapter block B (6) clamp the existing butt joint hole peripheral force bearing structure of the non-current butt joint end, and the connecting bolts pass through the existing hole positions. The device can adapt to the center of mass, diameter and end shape changes of the cabin segment, and retain the operation space of the current butt joint end.

Description

Technical Field

[0001] This invention relates to the field of large-section hoisting and assembly tooling technology, specifically to a variable center of gravity hoisting device and method for sections that can adjust the position of the hoisting points and adapt to sections with different diameters and end shapes. Background Technology

[0002] During the docking process of rocket assembly modules, appropriate transportation and support methods need to be selected based on factors such as the module's mass, diameter, length, the arrangement of external instruments or hatch covers, and the direction of the docking holes. Current operations may employ specialized docking support vehicles, clamps, specially designed lifting fixtures, or wide slings for bottom-mounted lifting.

[0003] Specialized docking support vehicles typically occupy a large operating space and are suitable for relatively fixed applications; the assembly, disassembly, and storage of custom-made lifting fixtures involve a significant workload; clamps are easily restricted by the location of external instruments, nozzles, or hatch covers; wide slings for bottom lifting are more suitable for lighter and shorter sections. For sections with different centers of gravity, if the lifting points of the lifting equipment are fixed, the lifting action line is difficult to align with the center of gravity of the section, and the section is prone to attitude deviation after being suspended, often requiring replacement of the lifting equipment or rearrangement of the lifting points.

[0004] Therefore, how to balance the adjustment of lifting point positions, the connection of compartments with different diameters, and the preservation of docking operation space on the same hoisting device are technical problems that need to be solved in compartment transfer and docking operations. Summary of the Invention

[0005] The purpose of this invention is to provide a variable center of gravity hoisting device and method for compartments. By adjusting the position of the hoisting point in two intersecting directions, the hoisting action line can be adapted to the center of gravity position of different compartments. Furthermore, the rotatable inclined boom and detachable adapter block assembly can be used to adapt to compartments with different diameters and end shapes, thereby improving the versatility of the hoisting device and reducing the space occupied by the hoisting equipment for docking operations.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a variable center of gravity hoisting device for a compartment, comprising an annular lifting beam frame, an adjustable lifting beam, an adjustable lifting ring, two inclined lifting arms, a pin shaft, an adapter block assembly, and a locking mechanism.

[0007] The annular lifting beam frame includes two supporting frame sides arranged opposite each other and extending along a first adjustment direction, each of the two supporting frame sides having a first frame tooth. An adjustable lifting beam spans between the two supporting frame sides, and both ends of the adjustable lifting beam are movably engaged with the corresponding supporting frame sides and are respectively provided with a first lifting beam tooth that can mesh with the first frame tooth.

[0008] An adjustable lifting ring is fitted onto an adjustable lifting beam and is movable along the length of the adjustable lifting beam. The adjustable lifting beam has a second lifting beam tooth extending along its length, and the adjustable lifting ring has a lifting ring tooth that can engage with the second lifting beam tooth. The length direction of the adjustable lifting beam forms a second adjustment direction intersecting with the first adjustment direction. The locking mechanism includes a first locking mechanism for engaging the first lifting beam tooth with the first frame tooth, and a second locking mechanism for engaging the lifting ring tooth with the second lifting beam tooth. The position adjustment of the adjustable lifting beam along the first adjustment direction and the position adjustment of the adjustable lifting ring along the second adjustment direction together constitute the lifting point position adjustment of the adjustable lifting ring.

[0009] Preferably, the annular lifting beam frame is a rectangular annular structure, with the two supporting frame sides parallel to each other. The adjustable lifting beam is set perpendicular to the two supporting frame sides, so that the first adjustment direction and the second adjustment direction are perpendicular to each other. The first frame tooth is set at the lower part of the corresponding supporting frame side.

[0010] Preferably, each end of the adjustable lifting beam is provided with a support seat spanning across the corresponding support frame edge, and the first lifting beam tooth is disposed at the lower part of the support seat. The first locking mechanism includes two first butterfly locking assemblies respectively disposed at both ends of the adjustable lifting beam. Each first butterfly locking assembly includes a butterfly operating part, a threaded rod connected to the butterfly operating part, and a clamping part disposed at the end of the threaded rod. The clamping part acts on the support frame edge to keep the first lifting beam tooth engaged with the first frame tooth.

[0011] Preferably, the adjustable lifting ring has an mounting opening through which the adjustable lifting beam passes, the second lifting beam teeth are located at the lower part of the adjustable lifting beam, and the lifting ring teeth are located at the lower part of the mounting opening. The second locking mechanism includes a butterfly-shaped operating part located on the adjustable lifting ring, a threaded rod connected to the butterfly-shaped operating part, and a clamping part located at the end of the threaded rod. The clamping part acts on the adjustable lifting beam, keeping the lifting ring teeth engaged with the second lifting beam teeth. In this embodiment, three butterfly-shaped locking mechanisms are provided, wherein two first butterfly-shaped locking components are located at both ends of the adjustable lifting beam, and one second butterfly-shaped locking component is located at the adjustable lifting ring; the two sets of meshing teeth mainly bear the anti-slip load in the corresponding adjustment direction, and the threaded rod and clamping part are used to provide the clamping force to keep the teeth engaged.

[0012] Two inclined booms are located on opposite sides of the annular lifting beam frame, with the upper end of each boom rotatably connected to the frame via a pin. As the booms rotate relative to the frame, the distance between their lower ends changes to accommodate compartments of different diameters. In this embodiment, no additional angle locking structure is provided between the booms and the frame; after the adapter blocks on both sides form a mechanical connection with the compartment, the swing angle of the booms is determined by the pin position, the compartment diameter, and the connection position of the lower ends of the booms.

[0013] Each inclined boom has an adapter block assembly connected to its lower end. The lower end of the inclined boom has multiple rows of mounting holes. The adapter block assembly includes a first adapter block and a second adapter block that are oppositely arranged and detachably connected. The first adapter block is detachably fixed to the lower end of the inclined boom by mounting bolts passing through its adapter block mounting holes and selected mounting holes. The load-bearing part of the compartment is the load-bearing structure around the existing docking hole of the compartment that is not currently docking. When clamping the compartment, the first and second adapter blocks are located on opposite sides of this load-bearing structure. Connecting bolts pass through the connecting holes of the first adapter block, the existing docking hole of the compartment, and the connecting holes of the second adapter block, thereby clamping the load-bearing part of the compartment between the first and second adapter blocks.

[0014] Preferably, the adapter block assembly is a component that can be removed and replaced by the inclined boom. The adapter block assemblies used for cylindrical and truncated conical sections employ different clamping surface shapes, clamping surface inclination angles, and / or thicknesses, so that the clamping surfaces of the selected first and second adapter blocks are adapted to the load-bearing structure around the existing docking holes of the corresponding sections; the multiple rows of mounting holes at the lower end of the inclined boom are used to install adapter block assemblies of different specifications.

[0015] The present invention also provides a method for hoisting a compartment with a variable center of gravity, comprising: placing a hoisting device above the compartment to be hoisted; rotating two inclined booms according to the diameter of the compartment to be hoisted; clamping the load-bearing part of the compartment to be hoisted by a first adapter block and a second adapter block; according to the position of the center of gravity of the compartment to be hoisted, releasing the locking of the adjustable lifting beam and the adjustable lifting ring and disengaging the corresponding teeth; adjusting the position of the adjustable lifting beam relative to the annular lifting beam frame and the position of the adjustable lifting ring relative to the adjustable lifting beam, so that the projection of the lifting action line of the adjustable lifting ring in the horizontal plane corresponds to the projection of the center of gravity of the compartment to be hoisted in the horizontal plane; re-engaging the two teeth and locking them respectively; and hoisting and transporting the compartment to be hoisted by the adjustable lifting ring.

[0016] Compared with existing technologies, this invention has the following advantages: The adjustable lifting beam and adjustable lifting ring form two mutually perpendicular adjustment relationships, allowing the lifting point to be adjusted within the plane of the annular lifting beam frame. This facilitates adapting the lifting action line to the center of gravity position of different compartments and reduces the attitude deviation of the compartment after it is suspended. The two sets of teeth mainly bear the anti-slip load in the corresponding adjustment direction, and the butterfly locking mechanism provides the clamping force to maintain the meshing of the teeth, ensuring that the adjusted lifting point position is maintained. The angled lifting arm can change its lower end spacing by rotating around the pin shaft to adapt to compartments of different diameters. The multiple rows of mounting holes and detachable adapter block assembly at the lower end of the angled lifting arm facilitate the replacement of adapter blocks for different compartment end shapes; the connecting bolts utilize the existing docking holes at the non-current docking end of the compartment to form a mechanical connection, eliminating the need for additional connecting holes for the lifting equipment and reducing the space occupied by the lifting equipment at the current docking end. Through the above structural combination, the same lifting device can be used for multiple compartments, reducing the number of special lifting equipment and the workload of assembly, disassembly, and storage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the variable center of gravity hoisting device for the compartment of the present invention.

[0018] Figure 2 This is an exploded structural diagram of the variable center of gravity hoisting device for the compartment of the present invention.

[0019] Figure 3 This is a partial schematic diagram of the engagement and locking structure between the adjustable lifting ring and the adjustable lifting beam.

[0020] Figure 4 This is a partial schematic diagram of the engagement and locking structure between the adjustable lifting beam and the annular lifting beam frame.

[0021] Figure 5 A schematic diagram showing the operational status of the hoisting device when hoisting a compartment with a diameter of 2 meters.

[0022] Figure 6 A schematic diagram showing the operational status of the hoisting device when hoisting a compartment with a diameter of 1 meter.

[0023] Figure 7 A schematic diagram showing the operational status of the hoisting device when hoisting a compartment with a diameter of 3.5 meters.

[0024] Reference numerals: 1—Adjustable lifting ring; 2—Annular lifting beam frame; 3—Adjustable lifting beam; 4—Inclined lifting arm; 5—Pin shaft; 6—Adapter block B; 7—Adapter block A; 8—Butterfly locking mechanism; 9—2-meter diameter compartment; 10—1-meter diameter compartment; 11—3.5-meter diameter compartment. Detailed Implementation

[0025] The invention will be further described below with reference to the accompanying drawings. It should be noted that the term "variable center of gravity" in the title of this application refers to the ability of the hoisting device to adapt to the center of gravity positions of different sections or the same section in different assembly states by changing the position of the hoisting point, rather than changing the center of gravity of the hoisted section itself. The term "non-current docking end" in this application refers to the end opposite to the end to be docked after this hoisting, and this end may have existing docking holes.

[0026] like Figure 1 and Figure 2 As shown, the variable center of gravity hoisting device for a compartment in this embodiment includes an adjustable lifting ring 1, an annular lifting beam frame 2, an adjustable lifting beam 3, two inclined lifting arms 4, two pins 5, two adapter blocks B 6, two adapter blocks A 7, and a butterfly locking mechanism 8. Adapter block A 7 constitutes the first adapter block, and adapter block B 6 constitutes the second adapter block.

[0027] The annular lifting beam frame 2 is a closed rectangular ring-shaped load-bearing structure. A pair of opposing frame edges of the annular lifting beam frame 2 serve as supporting frame edges, which are parallel to each other and extend along a first adjustment direction. A first frame tooth is provided at the lower part of each supporting frame edge. The adjustable lifting beam 3 spans between the two supporting frame edges and is perpendicular to them. Support seats are provided at both ends of the adjustable lifting beam 3, spanning the corresponding supporting frame edges, allowing the adjustable lifting beam 3 to move synchronously along the two supporting frame edges. A first lifting beam tooth is provided at the lower part of each support seat, engaging with the first frame tooth.

[0028] like Figure 4 As shown, the adjustable lifting beam 3 is equipped with a butterfly locking mechanism 8 at each end. The threaded rod of the butterfly locking mechanism 8 passes through the upper part of the support seat, and the lower end of the threaded rod is provided with a clamping part. Rotating the butterfly operating part causes the clamping part to act on the support frame edge of the annular lifting beam frame 2, which can keep the teeth of the first lifting beam engaged with the teeth of the first frame, thereby positioning the adjustable lifting beam 3 at the selected position of the annular lifting beam frame 2. The teeth of the first frame and the teeth of the first lifting beam mainly bear the anti-slip load in the first adjustment direction, while the threaded rod and the clamping part mainly provide the clamping force to keep the two teeth engaged. After releasing the butterfly locking mechanism 8 and releasing or reducing the engagement constraint between the teeth, the adjustable lifting beam 3 can move along the first adjustment direction.

[0029] like Figure 3 As shown, the adjustable lifting ring 1 has a mounting opening through which the adjustable lifting beam 3 passes, and is movable along the length of the adjustable lifting beam 3. The lower part of the adjustable lifting beam 3 is provided with a second lifting beam tooth extending along its length, and the lower part of the mounting opening of the adjustable lifting ring 1 is provided with a lifting ring tooth that engages with the second lifting beam tooth. The adjustable lifting ring 1 is provided with a butterfly locking mechanism 8. The clamping part of the butterfly locking mechanism 8 acts on the adjustable lifting beam 3, keeping the lifting ring tooth engaged with the second lifting beam tooth, thereby positioning the adjustable lifting ring 1 at the selected position of the adjustable lifting beam 3. The second lifting beam tooth and the lifting ring tooth mainly bear the anti-slip load in the second adjustment direction, and the threaded rod and clamping part of the butterfly locking mechanism 8 mainly provide the clamping force to maintain the engagement of the two teeth.

[0030] The length direction of the adjustable lifting beam 3 constitutes the second adjustment direction. In this embodiment, the first adjustment direction and the second adjustment direction are perpendicular to each other. Therefore, by adjusting the position of the adjustable lifting beam 3 on the annular lifting beam frame 2, the position of the adjustable lifting ring 1 in the first adjustment direction can be changed; by adjusting the position of the adjustable lifting ring 1 on the adjustable lifting beam 3, the position of the adjustable lifting ring 1 in the second adjustment direction can be changed. These two adjustments work together to allow the lifting point of the adjustable lifting ring 1 to be positioned within the plane of the annular lifting beam frame 2. The term "adjustment" refers to selecting the position within the range where the teeth can engage and position, and is not limited to continuous stepless adjustment.

[0031] The other pair of opposite frame edges of the annular lifting beam frame 2 are respectively provided with hinged parts. The upper end of each inclined lifting arm 4 is opposite to the pin hole of the corresponding hinged part, and a pin shaft 5 passes through to form a rotatable connection. The two inclined lifting arms 4 can swing around the corresponding pin shaft 5 respectively to change the distance between the lower ends of the two inclined lifting arms 4. There is no additional angle locking structure between the inclined lifting arms 4 and the annular lifting beam frame 2; after the adapter block assemblies on both sides form a mechanical connection with the compartment, the swing angle of the inclined lifting arms 4 is determined by the position of the pin shaft 5, the diameter of the compartment, and the connection position of the lower end of the inclined lifting arms 4. Figures 5 to 7 The different sway angles of the inclined boom 4 relative to different diameter sections are shown respectively.

[0032] Each inclined boom 4 has multiple rows of mounting holes at its lower end. Adapter block A 7 has mounting holes. During assembly, the appropriate mounting hole is selected based on the specifications of the chosen adapter block assembly. Mounting bolts are passed through the mounting holes of adapter block A 7 and the selected mounting holes to detachably fix adapter block A 7 to the lower end of the inclined boom 4. When clamping a compartment, adapter block A 7 and adapter block B 6 are positioned on opposite sides of the load-bearing structure surrounding the existing docking hole at the non-current docking end of the compartment, ensuring their connection holes correspond to the existing docking holes. Connecting bolts are then passed through the connection holes of adapter block A 7, the existing docking hole of the compartment, and the connection hole of adapter block B 6 to clamp the load-bearing part of the compartment between adapter block A 7 and adapter block B 6. Both adapter block A 7 and adapter block B 6 are detachable.

[0033] When using the hoisting device of this embodiment, firstly, the adjustable lifting ring 1 is fitted onto the adjustable lifting beam 3, and the adjustable lifting ring 1 is temporarily positioned near the middle of the adjustable lifting beam 3 using the butterfly locking mechanism 8; the adjustable lifting beam 3 is then installed across the two supporting frame sides of the annular lifting beam frame 2, and the adjustable lifting beam 3 is temporarily positioned near the middle of the annular lifting beam frame 2 using the butterfly locking mechanisms 8 located at both ends. Then, two pins 5 are used to rotatably connect the two inclined lifting arms 4 to the opposite sides of the annular lifting beam frame 2, and two adapter blocks A 7 are fixed to the lower ends of the two inclined lifting arms 4 respectively.

[0034] Using a crane, the assembled lifting device is lifted above the section to be lifted, with the two inclined booms 4 facing the non-current docking end of the section. Based on the section diameter, the two inclined booms 4 are rotated around their corresponding pins 5 until adapter block A 7 moves to the existing docking hole position at the non-current docking end. Adapter block B 6 is placed on the other side of the load-bearing structure around the existing docking hole, ensuring that the connecting holes of adapter blocks A 7 and B 6 correspond to the existing docking hole. Connecting bolts are then used to pass through all three, thus clamping the load-bearing structure around the existing docking hole between adapter blocks A 7 and B 6.

[0035] After the compartment is mechanically connected to the hoisting device, according to the center of gravity of the compartment being hoisted, the butterfly locking mechanisms 8 located at both ends of the adjustable lifting beam 3 and the butterfly locking mechanism 8 located at the adjustable lifting ring 1 are loosened respectively, so that the corresponding pressing parts are released and the corresponding teeth are separated or a gap that allows movement is formed. The adjustable lifting beam 3 is moved along the first adjustment direction and the adjustable lifting ring 1 is moved along the second adjustment direction until the projection of the lifting action line of the adjustable lifting ring 1 in the horizontal plane corresponds to the projection of the center of gravity of the compartment in the horizontal plane. Then, the teeth of the first lifting beam are fully engaged with the teeth of the first frame and the adjustable lifting beam 3 is locked, and the teeth of the lifting ring are fully engaged with the teeth of the second lifting beam and the adjustable lifting ring 1 is locked.

[0036] After completing the above assembly, clamping, adjustment, and locking, conduct a pre-lifting inspection of the hoisting device and its connecting parts. Slowly raise the hook until the compartment leaves the original support surface and is suspended in the air, observing the overall balance of the compartment and the hoisting device. After confirming that the connection is secure and the posture is normal, proceed with subsequent transfer and docking operations.

[0037] During the aforementioned load transfer process, the lifting load is sequentially transferred through the adjustable lifting ring 1, adjustable lifting beam 3, annular lifting beam frame 2, pin shaft 5, inclined lifting arm 4, and adapter block assembly to the load-bearing structure around the existing docking hole at the non-current docking end of the compartment. Two sets of meshing teeth primarily bear the anti-slip load in the corresponding adjustment direction, while three butterfly locking mechanisms 8 provide clamping force to maintain the meshing of the corresponding teeth, collectively maintaining the adjustment positions of the adjustable lifting beam 3 and the adjustable lifting ring 1. The two inclined lifting arms 4 and their lower end adapter block assemblies connect to opposite sides of the compartment, thereby completing the lifting of the compartment.

[0038] Figure 5 , Figure 6 and Figure 7 The 2-meter diameter section 9, 1-meter diameter section 10, and 3.5-meter diameter section 11 shown are all specific specifications that have been practically verified. Within the allowable structural dimensions of the annular lifting beam frame 2 and the inclined boom 4, the adapter block assembly can be positioned at the load-bearing part of the aforementioned different diameter sections by changing the swing angle of the inclined boom 4. The aforementioned specific diameters are verification specifications of this embodiment and do not constitute a limitation on the scope of protection of this invention.

[0039] For cylindrical and truncated conical sections, corresponding adapter blocks A7 and B6 are selected respectively. The adapter blocks of different specifications differ in at least one of the following: clamping surface shape, clamping surface inclination angle, and thickness, ensuring that the clamping surface is compatible with the existing load-bearing structure around the docking hole of the corresponding section. Without altering the basic adjustment relationship between the annular lifting beam frame 2, the adjustable lifting beam 3, and the adjustable lifting ring 1, clamping and lifting can be accomplished by replacing the adapter block assemblies.

Claims

1. A variable center of gravity hoisting device for a compartment, comprising an annular lifting beam frame, an adjustable lifting beam, an adjustable lifting ring, two inclined lifting arms, a pin shaft, an adapter block assembly, and a locking mechanism, characterized in that, The annular lifting beam frame includes two supporting frame sides arranged opposite each other and extending along a first adjustment direction, each of the two supporting frame sides having a first frame tooth portion; the adjustable lifting beam spans between the two supporting frame sides, with both ends of the adjustable lifting beam movably engaging with the corresponding supporting frame sides and each having a first lifting beam tooth portion capable of meshing with the first frame tooth portion; the adjustable lifting ring is sleeved on the adjustable lifting beam and can move along the length direction of the adjustable lifting beam, the adjustable lifting beam having a second lifting beam tooth portion extending along its length direction, and the adjustable lifting ring having a lifting ring tooth portion capable of meshing with the second lifting beam tooth portion; the length direction of the adjustable lifting beam forms a second adjustment direction intersecting the first adjustment direction; the locking mechanism includes a first lock for keeping the first lifting beam tooth portion engaged with the first frame tooth portion. The system includes a tightening mechanism and a second locking mechanism for engaging the teeth of the lifting ring with the teeth of the second lifting beam; the two inclined lifting arms are located on opposite sides of the annular lifting beam frame, and the upper end of each inclined lifting arm is rotatably connected to the annular lifting beam frame via a pin, so that the distance between the lower ends of the two inclined lifting arms can be changed by rotating the inclined lifting arm relative to the annular lifting beam frame; the lower end of each inclined lifting arm is connected to the adapter block assembly, the adapter block assembly including a first adapter block and a second adapter block that are oppositely arranged and detachably connected, and a clamping position for clamping the load-bearing part of the compartment is formed between the first adapter block and the second adapter block; the position adjustment of the adjustable lifting beam along the first adjustment direction and the position adjustment of the adjustable lifting ring along the second adjustment direction together constitute the lifting point position adjustment of the adjustable lifting ring.

2. The variable center of gravity hoisting device for a compartment according to claim 1, characterized in that, The annular lifting beam frame is a rectangular ring structure, with the two supporting frame sides parallel to each other. The adjustable lifting beam is set perpendicular to the two supporting frame sides so that the first adjustment direction and the second adjustment direction are perpendicular to each other. The first frame tooth is set at the lower part of the corresponding supporting frame side.

3. The variable center of gravity hoisting device for a compartment according to claim 1, characterized in that, The adjustable lifting beam has support seats at both ends that span the corresponding support frame sides, and the first lifting beam teeth are located at the lower part of the support seats. The first locking mechanism includes two first butterfly locking components respectively located at both ends of the adjustable lifting beam. Each first butterfly locking component includes a butterfly operating part, a threaded rod connected to the butterfly operating part, and a pressing part located at the end of the threaded rod. The pressing part can act on the corresponding support frame side. The meshing first lifting beam teeth and first frame teeth are used to bear the anti-slip load of the adjustable lifting beam relative to the annular lifting beam frame along the first adjustment direction. The threaded rod is used to apply a pressing force through the pressing part to keep the first lifting beam teeth and the first frame teeth meshing.

4. The variable center of gravity hoisting device for a compartment according to claim 1, characterized in that, The adjustable lifting ring has a mounting opening through which the adjustable lifting beam passes. The second lifting beam tooth is disposed at the lower part of the adjustable lifting beam, and the lifting ring tooth is disposed at the lower part of the mounting opening. The second locking mechanism includes a second butterfly locking assembly disposed on the adjustable lifting ring. The second butterfly locking assembly includes a butterfly operating part, a threaded rod connected to the butterfly operating part, and a clamping part disposed at the end of the threaded rod. The clamping part can act on the adjustable lifting beam. The intermeshing lifting ring tooth and the second lifting beam tooth are used to bear the anti-slip load of the adjustable lifting ring relative to the adjustable lifting beam along the second adjustment direction. The threaded rod is used to apply a clamping force through the clamping part to keep the lifting ring tooth and the second lifting beam tooth engaged.

5. The variable center of gravity hoisting device for a compartment according to claim 1, characterized in that, The annular lifting beam frame is provided with hinged parts on opposite sides. The hinged parts and the upper ends of the corresponding inclined lifting arms are provided with corresponding pin holes. The pin shaft passes through the pin holes of the hinged parts and the inclined lifting arms so that the inclined lifting arms can rotate around the pin shaft.

6. The variable center of gravity hoisting device for a compartment according to claim 1, characterized in that, The lower end of the inclined boom is provided with multiple rows of mounting holes for selectively connecting different types of the first adapter blocks. The first adapter block is provided with adapter block mounting holes, which correspond to the corresponding mounting holes in the multiple rows of mounting holes, and are detachably connected by mounting bolts passing through the adapter block mounting holes and the corresponding mounting holes. The first adapter block and the second adapter block are respectively located on opposite sides of the load-bearing structure around the docking hole of the non-current docking end of the compartment, and are respectively provided with a first connecting hole and a second connecting hole. The first connecting hole and the second connecting hole correspond to the existing docking hole of the non-current docking end of the compartment. The connecting bolts pass through the corresponding first connecting hole, the existing docking hole and the second connecting hole to clamp the load-bearing structure around the docking hole between the first adapter block and the second adapter block.

7. The variable center of gravity hoisting device for a compartment according to claim 1, characterized in that, The adapter block assembly is a component that can be removed and replaced by the inclined boom. The adapter block assembly for the cylindrical section and the adapter block assembly for the truncated conical section are different in at least one of the following: the shape of the clamping surface, the inclination angle of the clamping surface, and the thickness of the adapter block, so that the corresponding clamping surface is adapted to the load-bearing part of the corresponding section.

8. A method for hoisting a section with a variable center of gravity, implemented using a hoisting device, the hoisting device comprising an annular lifting beam frame, an adjustable lifting beam spanning between two opposing support frame sides of the annular lifting beam frame, an adjustable lifting ring sleeved on the adjustable lifting beam, two inclined lifting arms rotatably connected to opposite sides of the annular lifting beam frame, an adapter block assembly connected to the lower end of each inclined lifting arm, and a locking mechanism, wherein the adjustable lifting beam and the annular lifting beam frame, and the adjustable lifting ring and the adjustable lifting beam, are respectively provided with mutually meshing teeth, characterized in that... include: The hoisting device is placed above the section to be hoisted. The two inclined booms are rotated relative to the annular lifting beam frame according to the diameter of the section to be hoisted, and the load-bearing portion of the section to be hoisted is clamped by the adapter block assembly. Based on the position of the center of gravity of the section to be hoisted, the locking of the adjustable beam and the adjustable ring is released, and the corresponding teeth are disengaged. The position of the adjustable beam on the annular lifting beam frame is adjusted along a first adjustment direction, and the position of the adjustable ring on the adjustable beam is adjusted along a second adjustment direction intersecting the first adjustment direction, until the projection of the lifting action line of the adjustable ring in the horizontal plane corresponds to the projection of the center of gravity in the horizontal plane. The adjustable beam is engaged and locked with the teeth of the annular lifting beam frame, and the adjustable ring is engaged and locked with the teeth of the adjustable beam. The section to be hoisted is lifted and transported using the adjustable ring.

9. The method for hoisting a compartment with a variable center of gravity according to claim 8, characterized in that, When installing the first adapter block, align the adapter block mounting hole of the first adapter block with the corresponding mounting hole in the multiple rows of mounting holes at the lower end of the inclined boom, and use mounting bolts to detachably fix the first adapter block to the inclined boom; when clamping the load-bearing part, place the first adapter block and the second adapter block on opposite sides of the load-bearing structure around the docking hole of the non-current docking end of the pod section, so that the first connecting hole of the first adapter block, the existing docking hole of the pod section and the second connecting hole of the second adapter block correspond to each other, and use connecting bolts to pass through the first connecting hole, the existing docking hole and the second connecting hole to clamp the load-bearing structure around the docking hole.

10. The method for hoisting a compartment with a variable center of gravity according to claim 8, characterized in that, Depending on whether the pod section to be lifted is a cylindrical pod section or a truncated conical pod section, a corresponding adapter block assembly is selected, wherein the adapter block assembly for the cylindrical pod section and the adapter block assembly for the truncated conical pod section differ in at least one of the following: the shape of the clamping surface, the inclination angle of the clamping surface, and the thickness of the adapter block.

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