Large steel cylinder assembly lifting system

Abstract

The utility model provides a large -scale steel cylinder group is to the hoisting system, including cylinder bottom plate, support frame and hoisting mechanism, wherein cylinder bottom plate is equipped with the inner wall positioning line and the outer wall positioning line corresponding with the tentative construction cylinder, support frame includes support column and crossbeam, and support column evenly circumferential setting is in cylinder bottom plate, and is located the inboard of inner wall positioning line, crossbeam is connected between adjacent support column, hoisting mechanism includes the expansion ring and lifting device, and lifting device includes lifting driver and multiple lifting cylinders connected in lifting driver, and lifting cylinder evenly sets up in support frame, and its movable end is connected in expansion ring, the utility model discloses a support frame and hoisting mechanism are set up, have realized the segmented, group is to the hoisting of large -diameter, large -tonnage steel cylinder, have guaranteed the synchronism of different parts of the same section cylinder in the hoisting process, have reduced the operation difficulty of worker, have improved construction efficiency, have guaranteed cylinder positioning accurate, roundness accurate and joint position flat.

Description

Technical Field

[0001] This utility model belongs to the field of wall panel construction technology, and in particular relates to a large steel cylinder assembly and lifting system. Background Technology

[0002] Large steel paneling in existing technologies is generally composed of multiple sections welded together. There are two conventional construction methods: one is ground-based assembly and hoisting, which requires a large site; the other is segmented assembly using multiple chain hoists for inverted lifting, which requires multiple people to work simultaneously to ensure synchronous lifting of different panel sections. This method is not only labor-intensive and difficult, but also results in slow lifting speed and low installation efficiency. Furthermore, existing technologies lack devices to adjust the roundness of the panels, making it difficult to ensure the assembly accuracy. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a large steel cylinder assembly and lifting system, which reduces the difficulty of assembling and lifting large steel cylinders, improves construction efficiency, and ensures accurate cylinder positioning and precise roundness.

[0004] The technical solution adopted in this utility model is: a large steel cylinder assembly and lifting system, comprising:

[0005] The bottom plate of the cylinder is provided with inner wall positioning lines and outer wall positioning lines corresponding to the cylinder to be constructed.

[0006] The support frame includes support columns and crossbeams. The support columns are evenly and circumferentially arranged on the bottom plate of the cylinder and located inside the positioning line of the inner wall. The crossbeams connect adjacent support columns.

[0007] A lifting device includes an expansion ring and a lifting mechanism. The lifting mechanism includes a lifting driver and a plurality of lifting cylinders connected to the lifting driver. The lifting cylinders are evenly arranged on the support frame, and their movable ends are connected to the expansion ring.

[0008] Furthermore, it also includes an inner wall positioning component, which is uniformly and circumferentially disposed on the bottom plate of the cylinder along the inner wall positioning line, for abutting against the inner wall of the cylinder's wall panel.

[0009] Furthermore, the inner wall positioning member is a wedge-shaped plate that is smaller at the top and larger at the bottom, and a vertical edge is connected to the bottom end of one of the inclined sides, and the vertical edge is aligned with the inner wall positioning line.

[0010] Furthermore, it also includes an outer wall adjustment assembly, which is circumferentially movably disposed on the bottom plate of the cylinder along the outer wall positioning line and is used to abut against the bottom end of the outer wall of the wall panel.

[0011] Furthermore, the outer wall adjustment assembly includes a fixing member and a sliding member. The fixing member is connected to the bottom plate of the cylinder, and has a downwardly inclined sliding surface on the side near the outer wall positioning line. The sliding member is sleeved on the top of the fixing member and slidably connected to the sliding surface.

[0012] Furthermore, it also includes an inner wall adjustment component, which is movably disposed on the support column and used to abut against the top of the inner wall of the wall panel.

[0013] Furthermore, the support column is provided with a through hole, and a nut is provided on one side of the through hole. One end of the inner wall adjustment component is threadedly connected to the nut, and the other end passes through the through hole and faces the inner wall positioning line.

[0014] Furthermore, it also includes a matching adjustment component, which includes a concave clip with a U-shaped groove. At least two adjusting members are provided on one side of the U-shaped groove, and the adjusting members are threadedly connected to the concave clip.

[0015] Furthermore, the expansion ring includes several arc-shaped parts, and a tensioning element is provided between adjacent arc-shaped parts.

[0016] The advantages and positive effects of this utility model are:

[0017] (1) By setting up support frames and lifting mechanisms, the segmented and grouped lifting of large-diameter, large-tonnage steel cylinders was realized, ensuring the synchronicity of different parts of the same cylinder during the lifting process, reducing the difficulty of operation for workers and improving construction efficiency.

[0018] (2) By setting up inner wall positioning components, outer wall adjustment components and inner wall adjustment components, the accurate positioning and roundness of the cylinder are ensured;

[0019] (3) By setting the joint adjustment component, the flatness of the cylinder joint can be adjusted to ensure the quality of welding operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the inner wall positioning component structure of a specific embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the outer wall adjustment component structure according to a specific embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the inner wall adjustment component structure according to a specific embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the adjusting component according to a specific embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the expansion ring structure of a specific embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of a construction method according to a specific embodiment of this utility model.

[0027] In the picture:

[0028] 1. Bottom plate of the cylinder; 2. Support frame; 21. Support column; 22. Crossbeam; 3. Lifting device; 231. Expansion ring; 311. Arc-shaped component; 312. Tensioning component; 32. Lifting mechanism; 321. Lifting driver; 322. Lifting cylinder; 4. Inner wall positioning component; 5. Outer wall adjustment assembly; 51. Fixing component; 52. Sliding component; 6. Inner wall adjustment component; 7. Alignment adjustment assembly; 71. Concave clamp; 72. Adjusting component; 8. Top section of cylinder; 9. Next section of cylinder. Detailed Implementation

[0029] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0030] This utility model provides a large steel cylinder assembly and lifting system for use in the field of cylinder construction technology. By setting up a support frame and a lifting mechanism, it enables the segmented and assembled lifting of large-diameter, high-tonnage steel cylinders, ensuring the synchronization of different parts of the same cylinder segment during the lifting process, reducing the operational difficulty for workers and improving construction efficiency. By setting up inner wall positioning components, outer wall adjustment components, and inner wall adjustment components, it ensures accurate cylinder positioning and precise roundness. By setting up alignment adjustment components, it ensures the flatness of the cylinder joints.

[0031] like Figure 1As shown in the illustration, this utility model embodiment proposes a large steel cylinder assembly and lifting system, including a cylinder base plate 1, a support frame 2, and a lifting mechanism 32. Specifically, the cylinder base plate 1 is provided with inner wall positioning lines and outer wall positioning lines corresponding to the cylinder to be constructed; the support frame 2 includes support columns 21 and crossbeams 22, with the support columns 21 evenly circumferentially arranged on the cylinder base plate 1 and located inside the inner wall positioning lines; the crossbeams 22 connect adjacent support columns 21; the lifting device 3 includes an expansion ring 31 and a lifting mechanism 32, with the lifting mechanism 32 including a lifting driver 321 and multiple lifting cylinders 322 connected to the lifting driver 321, the lifting cylinders 322 being evenly arranged on the support frame 2, and their movable ends connected to the expansion ring 31. The expansion ring 31 is used to tighten against the inner wall of the cylinder during use, and the lifting mechanism 32 is used to drive the expansion ring 31 to lift vertically, thereby driving the cylinder to lift synchronously. The cylinder includes several wall panels. During construction, the wall panels are placed at the inner wall positioning line and the outer wall positioning line. After ensuring that the wall panels are installed in the correct position, the wall panels are welded to form a cylinder structure. Then, the expansion ring 31 is tightened to the inner wall of the cylinder. The cylinder is then lifted to the set height by operating the lifting mechanism 32. The aforementioned support column 21 and crossbeam 22 are connected to form a support frame 2, which has sufficient rigidity and can serve as the installation foundation for the lifting components, ensuring stable lifting of the cylinder. Typically, the cylinder's wall panels are arc-shaped, with each panel having the same specifications and weight, and connected to the same number of lifting cylinders. By evenly distributing the lifting cylinders on the support frame 2 and the support columns 21 evenly distributed along the cylinder's bottom plate 1, each wall panel experiences consistent stress. The support frame 2 receives a uniformly distributed load from the lifting cylinders, which is further transmitted to the cylinder's bottom plate 1 via the support columns 21, ensuring balanced stress on the overall structure. By controlling the operation of the lifting drive 321, the moving ends of multiple lifting components can be driven to move upwards synchronously, ensuring that different parts of the cylinder can be lifted synchronously. Compared to the prior art, where different parts of the cylinder are independently controlled by chain hoists, requiring multiple workers to operate smoothly, this application allows for lifting control by a single worker, significantly reducing the difficulty of the lifting operation and improving the construction efficiency of the cylinder structure.

[0032] The aforementioned bottom plate 1 is part of the cylindrical structure to be constructed. For example, when the cylindrical structure is a steel chimney, the bottom plate 1 is the bottom plate of the chimney. The bottom plate 1 is usually fixed to the concrete foundation by pre-embedded bolts and is set horizontally. The inner wall positioning line and the outer wall positioning line are set according to the installation position of the cylindrical structure and are marked on the upper surface of the bottom plate 1 by measurement and layout.

[0033] The number of the aforementioned support columns 21 can be set according to the diameter of the wall panel, and they are evenly arranged inside the inner wall positioning line along the circumference of the bottom plate, with a gap between their outer edge and the inner wall positioning line; in a specific embodiment, the support columns 21 are made of steel pipes, and the number is preferably 6-8. The bottom plate 1 of the cylinder is also provided with equally divided radial lines, which are centered on the center of the inner wall positioning line and correspond to the number of support columns 21; when installing the support columns 21, the equally divided radial lines and the inner wall positioning line are used as references to ensure that each support column 21 is installed at the same relative position on the inner wall positioning line.

[0034] The aforementioned crossbeam 22 is installed on the support column 21 to connect the support column 21 as a whole. Preferably, the crossbeam 22 is made of steel pipe or steel section and is connected to the top of the support column 21 to fix the support column 21 from both ends together with the bottom plate 1 of the cylinder. The number of lifting cylinders 322 is set according to the number of wall panels and their own lifting performance. Preferably, the number of lifting cylinders 322 is consistent with the number of support columns 21. They can be installed on the support column 21 or on the crossbeam 22. Preferably, a lifting lug is provided at one end of the crossbeam 22 near the end, and the lifting cylinder 322 is installed on the lifting lug.

[0035] The aforementioned lifting device 3 is capable of bearing the entire load of the cylinder. Preferably, the lifting device 3 is a liquid device, the lifting driver 321 is a hydraulic pump, and the lifting cylinder 322 is a hydraulic cylinder. The hydraulic pump is connected to the hydraulic cylinder through an oil inlet pipe and an oil return pipe. The hydraulic pump generates high-pressure oil through a motor drive, which provides power to the hydraulic cylinder. The piston of the lifting cylinder 322 moves downward to extend or moves upward to shorten under the drive of the high-pressure oil. The movable end of the piston is connected to the expansion ring 31 and drives the expansion ring 31 to move synchronously. The lifting device 3 also includes a synchronous control system, which can control multiple lifting rods to operate synchronously, thereby driving different parts of the cylinder to be lifted synchronously to a set height.

[0036] Furthermore, it also includes inner wall positioning components 4, which are evenly and circumferentially arranged on the bottom plate 1 of the cylinder along the inner wall positioning line, and are used to abut against the inner wall of the wall panel. The inner wall positioning components 4 are used to position the wall panel placed on the bottom plate 1 of the cylinder. By setting a ring of inner wall positioning components 4 along the inner wall positioning line, the position of the wall panel is ensured to be accurate. Preferably, each wall panel is positioned by at least two inner wall positioning components 4. When placing the wall panel, its inner wall is tightly attached to the inner wall positioning component 4, so that the inner wall of the wall panel coincides with the inner wall positioning line, thereby ensuring that the wall panel can be quickly and accurately completed in the initial positioning.

[0037] Specifically, in the above embodiments, such as Figure 2As shown, the inner wall positioning component 4 is a wedge-shaped plate that is smaller at the top and larger at the bottom, with a vertical edge connected to the bottom end of one of its inclined sides. The vertical edge is aligned with the inner wall positioning line. The bottom end of the inner wall positioning component 4 is welded to the bottom plate 1 of the cylinder, so that the vertical edge is set in the vertical direction to facilitate sufficient contact with the inner wall of the wall panel, ensuring the verticality of the wall panel while positioning it.

[0038] Furthermore, the large steel cylinder assembly lifting system proposed in this application also includes an outer wall adjustment component 5. The outer wall adjustment component 5 is circumferentially movably disposed on the cylinder bottom plate 1 along the outer wall positioning line and is used to abut against the outer wall of the wall panel. Specifically, the outer wall adjustment component 5 is disposed outside the outer wall positioning line. By moving the outer wall adjustment component 5 relative to the cylinder bottom plate 1, it can abut against the outer wall of the wall panel, thereby cooperating with the inner wall positioning component 4 to achieve clamping and fixing of the wall panel.

[0039] In this embodiment, the inner wall positioning component 4 and the outer wall adjusting component can be arranged in groups and positioned opposite each other, respectively abutting against the opposite sides of the wall panel, or each can be arranged at different relative positions on the wall panel, both of which can achieve clamping and fixing of the wall panel; by setting the outer wall adjusting component 5, not only can the wall panel be fixed, but the tightness of the outer wall adjusting component 5 against the wall panel can also be adjusted as needed. Through the coordinated cooperation of multiple inner wall positioning components 4 and outer wall adjusting components 5, the roundness of the wall panel can be adjusted to ensure that the roundness of the wall panel meets the requirements.

[0040] Specifically, in the above embodiments, such as Figure 3 As shown, the outer wall adjustment assembly 5 includes a fixing member 51 and a sliding member 52. The fixing member 51 is connected to the bottom plate 1 of the cylinder, and has a downwardly inclined sliding surface on the side near the outer wall positioning line. The sliding member 52 is sleeved on the top of the fixing member 51 and slidably connected to the sliding surface. When the sliding member 52 moves downward along the sliding surface, it gradually approaches the outer wall positioning line, thereby achieving abutment against the wall panel at that position. By controlling the position of different sliding members 52 on the corresponding fixing members 51, different degrees of abutment can be achieved between the sliding members 52 and the wall panel, thus realizing precise adjustment of the roundness of the wall panel.

[0041] In the above embodiment, the sliding member 52 includes spaced clamping plates and a sliding plate disposed between the two clamping plates. The two clamping plates are clamped on both sides of the fixing member 51 in the thickness direction. The sliding plate has an inclined surface adapted to the sliding surface on the side near the fixing member.

[0042] Furthermore, the large steel cylinder assembly lifting system proposed in this application also includes an inner wall adjusting component 6, which is movably mounted on the support column 21 and used to abut the top of the inner wall of the wall panel. By controlling multiple inner wall adjusting components 6 to press against the top of the inner wall of the wall panel, precise adjustment of the roundness of the top of the wall panel can be achieved. In conjunction with the inner wall positioning component 4 and the outer wall adjusting component 5, the consistency of the roundness in the height direction of the wall panel is ensured, achieving accurate positioning of the wall panel and precise adjustment of the overall roundness.

[0043] Specifically, in the above embodiments, such as Figure 4 As shown, the support column 21 has a through hole, and a nut is provided on one side of the through hole. One end of the inner wall adjusting member 6 is threadedly connected to the nut, and the other end passes through the through hole and faces the inner wall positioning line. Since there is a gap between the support column 21 and the inner wall positioning line, by screwing the inner wall adjusting member 6, one end of the inner adjusting member can be controlled to move closer to or further away from the inner wall positioning line, thereby controlling the tightness of the inner wall adjusting member 6 against the wall panel.

[0044] Furthermore, the large steel cylinder assembly lifting system proposed in this application also includes a matching adjustment component 7, such as... Figure 5 As shown, the alignment adjustment assembly 7 includes a concave clip 71 with a U-shaped groove. At least two adjusting members 72 are provided on one side of the U-shaped groove, and the adjusting members 72 are threadedly connected to the concave clip 71. In use, the concave clip is placed at the top of the joint between two wall panels, so that the tops of both wall panels extend into the U-shaped groove. Each wall panel has a corresponding adjusting member 72. The tightening of the adjusting members 72 ensures that the wall panels on both sides of the joint are flat and aligned, eliminating misalignment and facilitating welding operations.

[0045] In the embodiments of this application, such as Figure 6 As shown, the expansion ring 31 includes several arc-shaped components 311, with tensioning components 312 positioned between adjacent arc-shaped components 311. Specifically, the arc-shaped components 311 have an arc that adapts to the inner wall of the wall panel, and are connected by the tensioning components 312 to form a ring shape. By adjusting the tensioning components 312, the arc-shaped components 311 can be made to tighten the wall panel, thereby utilizing the friction between the arc-shaped components 311 and the wall panel to drive the wall panel to move synchronously. For example, the arc-shaped components 311 are made of channel steel, and the tensioning components 312 are jacks.

[0046] The construction method for the lifting system using the large steel cylinder assembly described above includes the following steps:

[0047] S1. Install the cylinder bottom plate 1, support frame 2, lifting mechanism 32, inner wall positioning component 4, outer wall adjusting component and inner wall adjusting component 6 in sequence;

[0048] The aforementioned cylindrical bottom plate 1 is fixed to the concrete foundation by pre-embedded bolts, and inner wall positioning lines, outer wall positioning lines, and equally divided radial lines are drawn on the cylindrical bottom plate 1. The equally divided radial lines are set at equal angles with the inner wall positioning lines as the center. In this embodiment, eight equally divided radial lines are set to divide the inner wall positioning lines into eight equal parts.

[0049] The support frame 2 includes a support column 21 and a crossbeam 22. The support column 21 is welded to the bottom plate 1 of the cylinder and is located on the inner side of the intersection of the fixed radial line and the inner wall positioning line, maintaining a set distance from the inner wall positioning line.

[0050] The two ends of the crossbeam 22 are welded to the top of the adjacent support column 21 respectively, and a lifting lug is provided at one end of the crossbeam 22 near the end position.

[0051] The lifting mechanism 32 includes a lifting driver 321 and a lifting cylinder 322. The lifting cylinder 322 is suspended on the lifting lug. The lifting driver 321 is set at any position on the bottom plate 1 of the cylinder inside the positioning line on the inner wall and is connected to the lifting cylinder 322 through the oil inlet pipe and the oil return pipe. After installation, the lifting cylinder 322 is debugged to ensure that each lifting cylinder 322 works normally and that the lifting speed and lifting height of each lifting cylinder 322 are consistent.

[0052] Both the inner wall positioning component 4 and the outer wall adjustment component 5 are welded to the bottom plate 1 of the cylinder. The inner wall positioning component 4 is evenly distributed along the inner wall positioning line, and its vertical edge is aligned with the inner wall positioning line. The outer wall adjustment component 5 is evenly distributed along the outer wall positioning component, so that the sliding surface of the fixing component 51 faces the outer wall positioning line. In this embodiment, the fixing component 51 is 5mm away from the outer wall positioning line. When the sliding component 52 slides down along the sliding surface, the range of its horizontal displacement is greater than 5mm.

[0053] A through hole is provided at a set height position of the column, which is adapted to the height of the segmented cylinder; the axis of the through hole is set radially along the inner wall positioning line, and a nut is welded on the side of the through hole away from the inner wall positioning line. The inner wall adjusting part 6 is threaded to the nut and passes through the through hole, and its length is greater than the through hole.

[0054] S2. Install the top section of the cylinder 8: hoist the wall panels corresponding to the top section of the cylinder 8, adjust the position, roundness and flatness of the joints of the wall panels, and weld the adjacent wall panels.

[0055] The wall panels are hoisted one by one between the inner wall positioning component 4 and the outer wall adjustment component 5. The outer wall adjustment component 5 is used to push the wall panel against the inner wall positioning component 4. When the roundness of the wall panel does not meet the requirements, the roundness of the wall panel is adjusted by adjusting the position of the sliding component 52.

[0056] Then, screw the inner wall adjustment piece 6 so that one end of it is pressed against the top of the inner wall of the wall panel, and use the inner wall adjustment piece 6 to make the roundness of the wall panel meet the requirements.

[0057] Install the alignment adjustment assembly 7 at the joint of adjacent wall panels. By rotating the adjustment part 72, make the joint of adjacent wall panels flat and aligned, and ensure that the weld size is consistent. Then weld the alignment adjustment assembly 7 in sequence to form the top section cylinder 8. Remove the alignment adjustment assembly 7 after welding is completed.

[0058] S3, Lifting the top section cylinder 8: Install the expansion ring 31 on the inner wall of the top section cylinder 8, connect the expansion ring 31 to the lifting mechanism 32, run the lifting mechanism 32, and lift the top section cylinder 8 to the set height;

[0059] An expansion ring 31 is installed at the middle of the top section of the cylinder 8 in the height direction, and a tensioning member 312 is used to tighten the expansion ring 31 against the inner wall of the top section of the cylinder 8. At this time, the movable end of the lifting cylinder 322 is just above the expansion ring 31. The movable end is controlled to move downward, connecting the expansion ring 31 and the lifting cylinder 322. Specifically, lifting lugs are provided at the corresponding positions of the expansion ring 31 and the lifting cylinder 322, and are connected to the movable end of the lifting rod through the lifting lugs. By operating the lifting mechanism 32, the movable end moves upward and retracts into the lifting cylinder 322, and the expansion ring 31 drives the cylinder to lift synchronously, so that the bottom of the top section of the cylinder 8 is higher than the height of the next section of the cylinder 9.

[0060] S4. Install the next section of cylinder 9: Repeat the steps of installing the top section of cylinder 8, run the lifting mechanism 32 to lower the top section of cylinder 8, and weld the top section of cylinder 8 and the next section of cylinder 9; move the expansion ring 31 and tighten it on the next section wall plate 9, run the lifting mechanism 32, and lift the top section of cylinder 8 and the next section of cylinder 9 to the set height;

[0061] like Figure 7 As shown, the installation method of the next section of cylinder 9 is the same as in step S2; after ensuring that the position of the next section of cylinder 9 is accurate and the roundness meets the requirements, the lifting mechanism 32 is operated to lower the top section of cylinder 8 to the upper end of the lower cylinder to achieve alignment and connection, and then the two adjacent sections of cylinder are welded; then the expansion ring 31 is moved to the next section of cylinder 9, and the lifting mechanism 32 is operated again to lift the top section of cylinder 8 and the next section of cylinder 9 synchronously until the bottom of the next section of cylinder 9 is higher than the height of the next section of cylinder to be installed.

[0062] S5. Repeat the above steps to complete the segmented installation of the cylinder from top to bottom, and weld the cylinder to the cylinder bottom plate 1.

[0063] Repeat step S4 to install the next section of the cylinder 9 one by one, completing the installation of the cylinder from top to bottom until a complete cylinder structure is formed. Then weld the cylinder to the bottom plate 1. After that, remove the inner wall positioning component 4, the outer wall adjustment component 5, the inner wall adjustment component, the lifting mechanism 32 and the support frame 2 to complete the construction of the entire cylinder structure.

[0064] The advantages and positive effects of this utility model are:

[0065] (1) By setting up support frames and lifting mechanisms, the segmented and grouped lifting of large-diameter, large-tonnage steel cylinders was realized, ensuring the synchronicity of different parts of the same cylinder during the lifting process, reducing the difficulty of operation for workers and improving construction efficiency.

[0066] (2) By setting up inner wall positioning components, outer wall adjustment components and inner wall adjustment components, the accurate positioning and roundness of the cylinder are ensured;

[0067] (3) By setting the joint adjustment component, the flatness of the cylinder joint can be adjusted to ensure the quality of welding operation.

[0068] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A large steel cylinder assembly and lifting system, characterized in that, include: The bottom plate of the cylinder is provided with inner wall positioning lines and outer wall positioning lines corresponding to the cylinder to be constructed. The support frame includes support columns and crossbeams. The support columns are evenly and circumferentially arranged on the bottom plate of the cylinder and located inside the positioning line of the inner wall. The crossbeams connect adjacent support columns. A lifting device includes an expansion ring and a lifting mechanism. The lifting mechanism includes a lifting driver and a plurality of lifting cylinders connected to the lifting driver. The lifting cylinders are evenly arranged on the support frame, and their movable ends are connected to the expansion ring.

2. The large steel cylinder assembly and lifting system according to claim 1, characterized in that: It also includes an inner wall positioning component, which is uniformly and circumferentially disposed on the bottom plate of the cylinder along the inner wall positioning line, and is used to abut against the inner wall of the cylinder wall panel.

3. The large steel cylinder assembly and lifting system according to claim 2, characterized in that: The inner wall positioning component is a wedge-shaped plate that is smaller at the top and larger at the bottom, with a vertical edge connected to the bottom end of one of its inclined sides, and the vertical edge is aligned with the inner wall positioning line.

4. The large steel cylinder assembly and lifting system according to claim 2 or 3, characterized in that: It also includes an outer wall adjustment component, which is circumferentially movably disposed on the bottom plate of the cylinder along the outer wall positioning line and is used to abut against the bottom end of the outer wall of the wall plate.

5. The large steel cylinder assembly and lifting system according to claim 4, characterized in that: The outer wall adjustment assembly includes a fixing component and a sliding component. The fixing component is connected to the bottom plate of the cylinder and has a downwardly inclined sliding surface on the side near the outer wall positioning line. The sliding component is sleeved on the top of the fixing component and slidably connected to the sliding surface.

6. The large steel cylinder assembly and lifting system according to claim 4, characterized in that: It also includes an inner wall adjustment component, which is movably disposed on the support column and used to abut against the top of the inner wall of the wall panel.

7. The large steel cylinder assembly and lifting system according to claim 6, characterized in that: The support column has a through hole, and a nut is provided on one side of the through hole. One end of the inner wall adjustment component is threadedly connected to the nut, and the other end passes through the through hole and faces the inner wall positioning line.

8. The large steel cylinder assembly and lifting system according to claim 1 or 7, characterized in that: It also includes a matching adjustment component, which includes a concave clip with a U-shaped groove. At least two adjusting members are provided on one side of the U-shaped groove, and the adjusting members are threadedly connected to the concave clip.

9. The large steel cylinder assembly and lifting system according to claim 1, characterized in that: The expansion ring includes several arc-shaped parts, and a tensioning element is provided between adjacent arc-shaped parts.

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