A misalignment assembly tool for the cylinder section of a cryogenic liquid tank container

Abstract

The present invention discloses a misalignment assembly tool for cylindrical sections of a cryogenic liquid tank container, which includes an upright frame. A cross frame is provided on the upright frame, and a cylindrical section fixing mechanism is provided at the front end of the cross frame. The cylindrical section fixing mechanism includes a first hydraulic cylinder, one end of the first hydraulic cylinder is installed on the cross frame, and the other end of the first hydraulic cylinder cooperates with the edge of the cylindrical section; a hook structure is connected to the lower end of the upright frame. The hook structure includes a U-shaped support groove, a rotating arm, a clamping groove, and a hook. The U-shaped support groove is horizontally and fixedly connected to the lower end of the upright frame. The U-shaped support groove is hinged to the first end of the rotating arm, the hook is hinged to the end of the second end, and the clamping groove is fixedly arranged on the lower side of the second end of the rotating arm. The two clamping parts on the two cross frames can be driven by a third hydraulic cylinder to move horizontally, so as to adapt to cylindrical sections with different diameters; the half chuck adapts to the clamping of the arc surface of the cylindrical section through the rotation of the half clamping column, and the two side half clamping columns are driven by a second hydraulic cylinder to clamp the cylindrical section. The clamping of the half clamping column has the advantages of wide shape adaptability and good clamping effect.

Description

Technical Field

[0001] The present invention relates to the field of liquid tank containers, and specifically refers to a misalignment assembly tool for the barrel sections of a cryogenic liquid tank container. Background Art

[0002] Cryogenic liquid tank containers are mainly used for shipping liquefied gases such as liquid oxygen and nitrogen. Compared with traditional barrel-type and box-type containers, tank containers have the advantages of economy, speed, safety, and environmental protection. Therefore, the demand for tank containers is increasing day by day and has gradually developed into an important storage and transportation equipment in international shipping.

[0003] The existing cryogenic liquid tank container consists of a frame and a tank body arranged inside the frame. The frame is mainly composed of four cross beams, a left end frame, and a right end frame; the left end frame and the right end frame are welded by four cross beams to form a three-dimensional frame, and a cryogenic liquid storage tank is fixed inside the three-dimensional frame.

[0004] Actually, when producing a tank container, the tank body inside the frame is formed by butt-welding multiple barrel sections into a complete barrel. Since there are often problems with large misalignment amounts during the welding of the barrel inside the frame, when placing the barrel sections in the frame, the next barrel section needs to be close to the previous one to form a weld. Currently, there is a lack of a device for pushing and adjusting the weld by pushing the barrel sections closer. Moreover, the anti-misalignment tool used during the current assembly of the barrel sections still requires welding the bottom end of the support plate of the ear plate directly to the inner wall of the fixed barrel section, and the screw rod vertically connected to the connecting plate directly acts on the inner wall of the misaligned barrel section to adjust the misalignment problem of the barrel section. After the barrel sections are assembled and adjusted in place, the ear plate must still be removed by flame cutting, which is likely to damage the inner wall of the barrel section and requires a large amount of grinding work after cutting.

[0005] Therefore, it is urgent to study a misalignment assembly tool for the barrel sections of a cryogenic liquid tank container to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the above technical problems and provide a misalignment assembly tool for the barrel sections of a cryogenic liquid tank container.

[0007] To achieve the above purpose, the present invention adopts the following technical solution: A misalignment assembly tool for the barrel sections of a cryogenic liquid tank container, including a vertical frame. There are at least two vertical frames perpendicularly arranged on a bottom plate. A horizontal frame is provided on the vertical frame. A barrel section fixing mechanism is provided at the front end of the horizontal frame. The barrel section fixing mechanism includes a first hydraulic cylinder. One end of the first hydraulic cylinder is installed on the horizontal frame, and the other end of the first hydraulic cylinder cooperates with the edge of the barrel section. The first hydraulic cylinder extends to push the barrel section towards the inside of the frame.

[0008] Hook structure, a hook structure is connected to the lower end of the vertical frame. The hook structure includes a U-shaped bracket, a rotating arm, a clamping groove, and a hook. The U-shaped bracket is horizontally and fixedly connected to the lower end of the vertical frame. One end of the outer side of the U-shaped bracket is hinged to the first end of the rotating arm. A hook is hinged to the end of the second end of the rotating arm. On the lower side of the second end of the two rotating arms, a clamping groove with a downward opening is fixedly connected.

[0009] Further, the cylinder section fixing mechanism further includes a lifting part, a clamping part, and a clamping driving part. The lifting part is arranged between the horizontal frame and the vertical frame and drives the horizontal frame to move up and down; there are two groups of the clamping parts. The clamping parts can move horizontally along the horizontal frame. The clamping parts are used to clamp and fix the side wall of the cylinder section. The clamping driving part is used to drive the clamping parts to move along the horizontal frame.

[0010] Further, the lifting part includes a linear guide rail and a guide rail slider. The linear guide rail is arranged longitudinally along the vertical frame. A guide rail slider is slidably arranged on the linear guide rail. The back of the horizontal frame is fixedly connected to the slider; the lifting part further includes a lifting oil cylinder. The lower end of the lifting oil cylinder is fixedly connected to the bottom plate, and the free end of the upper part of the lifting oil cylinder is connected to the horizontal frame.

[0011] Further, on the front side end face of the horizontal frame, there are a horizontal guide rail and a horizontal slider. Two horizontal guide rails are arranged in parallel on the front side end face of the horizontal frame. The back of the clamping part is provided with a horizontal slider. The clamping part moves along the horizontal guide rail through the horizontal slider.

[0012] Further, each group of the clamping parts includes a first slide plate and a second slide plate. On the back of the first slide plate and the second slide plate, there is a horizontal slider respectively. On the front side end face of the first slide plate and the second slide plate, there is a first hydraulic cylinder respectively. The free ends of the two first hydraulic cylinders are both rotatably connected with a half-side chuck. The two half-side chucks are used in pairs to clamp and fix the cylinder section from the inner and outer sides thereof; a second hydraulic cylinder is further arranged between the first slide plate and the second slide plate. The second hydraulic cylinder drives the first slide plate and the second slide plate to move relatively so that the two half-side chucks form a clamping force.

[0013] Further, the half-side chuck includes a base plate. The back of the base plate is rotatably connected to the first hydraulic cylinder. Two first clamping half-columns are rotatably arranged on the front side face of the base plate. Two second clamping half-columns are rotatably connected to the plane side of the first clamping half-column. Two third clamping half-columns are rotatably connected to the plane side of the second clamping half-column; the plane sides of the first clamping half-columns, the second clamping half-columns, and the third clamping half-columns of the two half-side chucks are arranged oppositely.

[0014] Further, the clamping driving part is arranged inside the horizontal frame and includes a third hydraulic cylinder. There are two third hydraulic cylinders, and they respectively drive the two clamping parts to move. The two third hydraulic cylinders are arranged in central symmetry. The first end of the third hydraulic cylinder is hinged inside the horizontal frame, and the second end is hinged to the bottom surface of the clamping part.

[0015] Further, universal wheels are provided at the four corners of the lower end face of the bottom plate.

[0016] Furthermore, a diagonal brace is provided between the side of the bottom plate away from the cross frame and the bottom plate to form a stable triangular support structure.

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

[0018] 1. The misalignment assembly tool for the cylinder section of the cryogenic liquid tank container of the present invention can use the rotating arm to clamp the card slot on the frame border of the frame, connect the tool with the container frame, and then push the cylinder section into the container frame by the extension of the first hydraulic cylinder, so as to conveniently adjust the weld between the cylinder sections;

[0019] 2. Since the height position of the cross frame is controlled by the lifting hydraulic cylinder, it can conveniently correspond to different height positions of the cylinder section and perform misalignment assembly operations on different positions of the cylinder section;

[0020] 3. The third hydraulic cylinder can drive the two clamping parts on the two groups of cross frames to move horizontally, so as to adapt to cylinder sections of different diameters and adjust the clamping distance at different clamping positions of the cylinder section;

[0021] 4. The paired half chucks can adapt to the clamping and fixing of the arc surface of the cylinder section by the rotation of the half clamping column, and the two side half clamping columns are driven by the second hydraulic cylinder to clamp the cylinder section. The clamping of the half clamping column has the advantages of wide shape adaptability and good clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an axonometric view of the misalignment assembly tool for the cylinder section of the container of the present invention;

[0023] Figure 2 is an exploded view of the half chuck of the present invention;

[0024] Figure 3 is a side view of the misalignment assembly tool for the cylinder section of the container of the present invention;

[0025] Figure 4 is of the present invention Figure 3 structural schematic diagram of the A-A cross-section in;

[0026] Figure 5 is a front view of the misalignment assembly tool for the cylinder section of the container of the present invention;

[0027] In the figure: 1. Upright frame; 2. Bottom plate; 3. Cross frame; 4. First hydraulic cylinder; 5. U-shaped bracket; 6. Rotating arm; 7. Card slot; 8. Hook; 9. Diagonal brace; 10. Clamping part; 11. Clamping driving part; 12. Linear guide rail; 13. Guide rail slider; 14. Lifting oil cylinder; 15. Horizontal guide rail; 16. Horizontal slider; 17. Half chuck; 18. Second hydraulic cylinder; 19. Base plate; 20. First half clamping column; 21. Second half clamping column; 22. Third half clamping column; 23. Third hydraulic cylinder; 24. Universal wheel; 25. First sliding plate; 26. Second sliding plate. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0029] A misalignment assembly tool for the cylindrical section of a cryogenic liquid tank container, as Figure 1 shown, includes an upright frame 1. There are at least two upright frames 1 vertically arranged on the bottom plate 2, and universal wheels 24 are provided at the four corners of the lower end face of the bottom edge. The whole tool can be conveniently pushed, pulled and moved through the universal wheels 24; a diagonal brace 9 is provided between one side of the bottom plate 2 far from the cross frame 3 and the bottom plate 2 to form a stable triangular support structure. As Figure 3 shown, a cross frame 3 is provided on the upright frame 1. A cylindrical section fixing mechanism is provided at the front end of the cross frame 3. The cylindrical section fixing mechanism includes a first hydraulic cylinder 4. One end of the first hydraulic cylinder 4 is installed on the cross frame 3, and the other end of the first hydraulic cylinder 4 is matched with the edge of the cylindrical section. The first hydraulic cylinder 4 extends to push the cylindrical section into the frame body; a hook structure is also connected and arranged at the lower end of the upright frame 1. The hook structure includes a U-shaped bracket 5, a rotating arm 6, a card slot 7, and a hook 8. The U-shaped bracket 5 is horizontally and fixedly connected to the lower end of the upright frame 1. As shown in the figure, the opening of the U-shaped bracket 5 faces upward. One end of the outer side of the U-shaped bracket 5 is hinged to the first end of the rotating arm 6. A hook 8 is hinged to the end of the second end of the rotating arm 6. Card slots 7 with downward openings are fixedly connected to the lower sides of the second ends of the two rotating arms 6. When the hook 8 rotates upward, the opening on the lower side of the card slot 7 is in an open state. When the hook 8 rotates to the lower side, the opening can be blocked. The card slot 7 is matched with the side end frames on both sides of the frame of the liquid tank container. When the rotating arm 6 rotates to the horizontal position, the card slot 7 can be clamped on the side end frame to form a fixation with the frame. Then, the hook 8 is rotated downward to close the opening of the card slot 7, thereby preventing the frame from disengaging from the card slot 7 during use.

[0030] During use, rotate the rotating arm 6 from Figure 3The position of the middle dashed line is turned to the horizontal. During this process, the card slot 7 is stuck on the frame of the container. Then, the hook 8 is rotated and hung down so that the hook 8 hooks the bottom of the frame. In this way, the tooling can be connected to the frame of the container. Then, the free end of the first hydraulic cylinder 4 is aligned with the side wall of the cylinder section, and then the first hydraulic cylinder 4 is controlled to extend, and the cylinder section can be pushed and moved into the frame to align the weld of the cylinder section. It can be understood that when in use, cushioning materials such as wooden blocks can be filled between the free end of the first hydraulic cylinder 4 and the cylinder section to prevent the cylinder section from being damaged. Embodiment 2

[0031] The difference between this embodiment and the previous embodiment is that the cylinder section fixing mechanism in this embodiment further includes a lifting part, a clamping part 10, and a clamping driving part 11. The lifting part is arranged between the horizontal frame 3 and the vertical frame 1 and drives the horizontal frame 3 to move up and down. There are two groups of clamping parts 10. The clamping parts 10 can move horizontally along the horizontal frame 3. The clamping parts 10 are used to clamp and fix the side wall of the cylinder section. The clamping driving part 11 is used to drive the clamping parts 10 to move along the horizontal frame 3.

[0032] Specifically, as Figure 1 、 Figure 4 shown, the lifting part includes a linear guide rail 12 and a guide rail slider 13. The linear guide rail 12 is arranged longitudinally along the vertical frame 1. A guide rail slider 13 is slidably arranged on the linear guide rail 12. The back of the horizontal frame 3 is fixedly connected to the slider. The horizontal frame 3 can slide on the linear guide rail 12 through the slider, so that the horizontal frame 3 can move up and down. And the lifting part further includes a lifting oil cylinder 14. The lower end of the lifting oil cylinder 14 is fixedly connected to the bottom plate 2. The free end of the upper part of the lifting oil cylinder 14 is connected to the horizontal frame 3. When the height of the horizontal frame 3 needs to be adjusted, controlling the telescopic movement of the lifting oil cylinder 14 can position the position of the horizontal frame 3. In this way, it is convenient to push the cylinder section at different height positions, so as to control the adjustment of the welds at different height positions of the cylinder section.

[0033] Furthermore, in addition to adjusting the height of the cross beam, it is also necessary to adjust the horizontal position of the cylinder section fixing mechanism, so as to facilitate the fixing of cylinder sections with different diameters. Specifically, as Figure 2 、 Figure 4As shown, the front end face of the transverse frame 3 is provided with a horizontal guide rail 15 and a horizontal slider 16. Two horizontal guide rails 15 are arranged in parallel on the front end face of the transverse frame 3. The horizontal slider 16 is arranged on the back surface of the clamping part 10. The clamping part 10 moves along the horizontal guide rail 15 through the horizontal slider 16. Both groups of clamping parts 10 can move positions on the horizontal guide rail 15 through the horizontal slider 16. When it is necessary to clamp a cylinder section with a larger diameter, the two groups of clamping parts 10 can be moved away from each other to adapt to the larger diameter of the cylinder section. On the contrary, the clamping parts 10 can be moved closer to each other to adapt to the smaller diameter of the cylinder section. It can be understood that in the actual welding of the cylinder section, the cylinder section uses a hoisting machine such as a traveling crane or a crane to bear the overall weight of the cylinder section. The clamping part 10 described in this embodiment is used to adjust and maintain the posture of the cylinder section, so that the latter cylinder section is assembled and aligned with the previous cylinder section, and does not bear the weight of the cylinder section. That is, during the actual misalignment assembly operation of the cylinder section, the middle part of the cylinder section is lifted by a hoisting device, and one end of the cylinder section is fixed by this tooling. Then, the lifting of one end of the cylinder section is controlled by the lifting part to form a cylinder section seesaw with the hoisting point as the fulcrum and controlled by the lifting part. When the cylinder sections are misaligned and assembled, the upper and lower openings of the cylinder section weld can be adjusted.

[0034] Further, as Figure 2 、 Figure 4 shown, each group of the clamping parts 10 includes a first slide plate 25 and a second slide plate 26. Horizontal sliders 16 are respectively arranged on the back surfaces of the first slide plate 25 and the second slide plate 26. A first hydraulic cylinder 4 is respectively arranged on the front end faces of the first slide plate 25 and the second slide plate 26. A second hydraulic cylinder 18 is further arranged between the first slide plate 25 and the second slide plate 26. The second hydraulic cylinder 18 can control the first slide plate 25 and the second slide plate 26 to move closer to or away from each other, and further make the two first hydraulic cylinders 4 in the same group of clamping parts 10 move closer to or away from each other. The free ends of the two first hydraulic cylinders 4 are respectively rotatably connected with half side chucks 17. The two half side chucks 17 are used in pairs to clamp and fix the cylinder section from the inner and outer side faces of the cylinder section. That is, when the second hydraulic cylinder 18 contracts, the half side chucks 17 on the two first hydraulic cylinders 4 move closer to each other to form a clamp on the side wall of the cylinder section. It can be understood that in this embodiment, the clamping of the cylinder section by the half side chucks 17 can not only push the cylinder section forward, but also control the first hydraulic cylinder 4 to contract to pull the cylinder section outward. Then, when the cylinder sections are misaligned and assembled, not only can it be pushed as in the first embodiment, but also it can be pulled outward if the cylinder section is pushed too much, realizing two-way adjustment.

[0035] As Figure 4As shown in the figure, the clamping drive part 11 is arranged in the cross frame 3 and includes two hydraulic cylinders III 23. The two hydraulic cylinders III 23 are respectively used to drive the two clamping parts 10 to move. The two hydraulic cylinders III 23 are arranged in a centrosymmetric and cross-shaped manner. The first end of the hydraulic cylinder III 23 is hinged in the cross frame 3, and the second end of the hydraulic cylinder III 23 is hinged to the hinge ear seat on the back of the first slide plate 25 of the clamping part 10. During actual control, when the hydraulic cylinder III 23 extends, it first pushes the first slide plate 25 to slide outward through the hinge ear, and then synchronously pushes the second slide plate 26 to move through the hydraulic cylinder II 18;

[0036] There are three ways to adjust the hydraulic cylinder III 23. First: that is, the two hydraulic cylinders III 23 extend simultaneously. At this time, the two clamping parts 10 are controlled to move away from each other. At this time, it can be used to clamp the cylinder section with a large diameter;

[0037] Second: that is, the two hydraulic cylinders III 23 shorten simultaneously. At this time, the two clamping parts 10 are controlled to move closer to each other. This kind of adjustment can be used to clamp the cylinder section with a smaller diameter;

[0038] Third: that is, one of the two hydraulic cylinders III 23 extends and the other shortens. At this time, the distance between the two clamping parts 10 can be kept unchanged and they can move in the same direction at the same time. This kind of adjustment can be used to horizontally move the cylinder section during the misalignment assembly of the cylinder sections. Embodiment III

[0039] In this embodiment, the structure of the half chuck 17 in the second embodiment is improved, such as Figure 2 、 Figure 5As shown, the half chuck 17 includes a substrate 19. The back surface of the substrate 19 is rotatably connected to the end of the first hydraulic cylinder 4. Two first clamping half-columns are rotatably provided on the front side of the substrate 19. The clamping half-columns are semi-cylindrical, and the center of the bottom surface of the semi-cylinder is rotationally connected to the substrate 19. The plane sides of the first clamping half-columns on both sides of the substrate 19 are arranged opposite to each other. In this way, the inner and outer sides of the cylinder can be clamped by the plane of the semi-cylinder. With the rotation of the substrate 19, the half chuck 17 can adapt to the curved surfaces of cylinder sections with different diameters; the plane side of the semi-cylinder can be further refined. That is, two second clamping half-columns are rotatably connected to one side of the plane of the first clamping half-column. Similarly, the second clamping half-column can rotate along its axis, and the plane side of the second clamping half-column should protrude from the plane side of the first clamping half-column; and two third clamping half-columns are rotatably connected to one side of the plane of the second clamping half-column, so that the plane sides of the first clamping half-columns, second clamping half-columns, and third clamping half-columns of the two half chucks 17 are arranged opposite to each other. The plane side of the third clamping half-column protrudes from the plane side of the second clamping half-column, so that the plane side of the third clamping half-column is used to contact and clamp the side wall of the cylinder. A rubber pad can also be provided on the plane side of the third clamping half-column for anti-slip on the contact surface and protection of the inner wall of the cylinder, improving the clamping firmness; this way of gradually refining the clamping half-column can obtain a larger clamping contact area for the half chuck 17 when clamping a cylinder section with a curvature, thereby improving the clamping effect.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A misalignment assembly tool for the cylinder section of a cryogenic liquid tank container, characterized in that It includes an upright frame (1). There are at least two upright frames (1) vertically arranged on the bottom plate (2). A cross frame (3) is provided on the upright frame (1). A cylinder section fixing mechanism is provided at the front end of the cross frame (3). The cylinder section fixing mechanism includes a first hydraulic cylinder (4). One end of the first hydraulic cylinder (4) is installed on the cross frame (3), and the other end of the first hydraulic cylinder (4) cooperates with the edge of the cylinder section. The first hydraulic cylinder (4) extends to push the cylinder section into the frame body. The cylinder section fixing mechanism includes a clamping part (10). There are two groups of the clamping parts (10). The clamping parts (10) can move horizontally along the cross frame (3), and the clamping parts (10) are used to clamp and fix the side wall of the cylinder section. Each group of the clamping parts (10) includes a first slide plate (25) and a second slide plate (26). Horizontal sliders (16) are respectively arranged on the back surfaces of the first slide plate and the second slide plate. First hydraulic cylinders (4) are respectively arranged on the front side end faces of the first slide plate and the second slide plate. The free ends of the two first hydraulic cylinders (4) are rotatably connected with half side clamps (17). The two half side clamps (17) are used in pairs to clamp and fix the cylinder section from the inner and outer side faces thereof. A second hydraulic cylinder (18) is further arranged between the first slide plate and the second slide plate. The second hydraulic cylinder (18) drives the first slide plate and the second slide plate to move relatively so that the two half side clamps (17) form a clamping force. A hook structure. A hook structure is connected and arranged at the lower end of the upright frame (1). The hook structure includes a U-shaped support groove (5), a rotating arm (6), a clamping groove (7), and a hook (8). The U-shaped support groove (5) is horizontally and fixedly connected to the lower end of the upright frame (1). One end of the outer side of the U-shaped support groove (5) is hinged to the first end of the rotating arm (6). A hook (8) is hinged to the end of the second end of the rotating arm (6). Clamping grooves (7) with downward openings are fixedly connected to the lower sides of the second ends of the two rotating arms (6). The clamping grooves (7) cooperate with the side end frames on both sides of the frame of the liquid tank container. When the rotating arm (6) rotates to the horizontal position, the clamping grooves (7) are clamped on the side end frames to form a fixation with the frame, and the hook (8) is rotated down to close the opening of the clamping groove (7).

2. The misalignment assembly tool for the cylinder section of a cryogenic liquid tank container according to claim 1, characterized in that, The cylinder section fixing mechanism further includes a lifting part and a clamping driving part (11). The lifting part is arranged between the cross frame (3) and the upright frame (1) and drives the cross frame (3) to move up and down. The clamping driving part (11) is used to drive the clamping part (10) to move along the cross frame (3).

3. A misalignment assembly tool for a cylinder section of a cryogenic liquid tank container according to claim 2, characterized in that The lifting part includes a linear guide rail (12) and a guide rail slider (13). The linear guide rail (12) is arranged longitudinally along the upright frame (1). A guide rail slider (13) is slidably arranged on the linear guide rail (12). The back surface of the cross frame (3) is fixedly connected to the slider. The lifting part further includes a lifting oil cylinder (14). The lower end of the lifting oil cylinder (14) is fixedly connected to the bottom plate (2), and the upper free end of the lifting oil cylinder (14) is connected to the cross frame (3).

4. A misalignment assembly tool for a cylinder section of a cryogenic liquid tank container according to claim 2, characterized in that, Horizontal guide rails (15) and horizontal sliders (16) are arranged on the front side end face of the cross frame (3). Two horizontal guide rails (15) are arranged in parallel on the front side end face of the cross frame (3). Horizontal sliders (16) are arranged on the back surface of the clamping part (10). The clamping part (10) moves along the horizontal guide rails (15) through the horizontal sliders (16).

5. The misalignment assembly tool for the cylinder section of a cryogenic liquid tank container according to claim 4, characterized in that, The half chuck (17) includes a substrate (19). The back surface of the substrate (19) is rotatably connected to the first hydraulic cylinder (4). Two first clamping half-columns are rotatably provided on the front side of the substrate (19). Two second clamping half-columns are rotatably connected to the planar side of the first clamping half-column. Two third clamping half-columns are rotatably connected to the planar side of the second clamping half-column. The planar sides of the first clamping half-columns, second clamping half-columns, and third clamping half-columns of the two half chucks (17) are arranged opposite to each other.

6. A misalignment assembly tool for a cylinder section of a cryogenic liquid tank container according to claim 2, characterized in that, The clamping drive part (11) is arranged in the cross frame (3) and includes two third hydraulic cylinders (23). The two third hydraulic cylinders (23) respectively drive the two clamping parts (10) to move. The two third hydraulic cylinders (23) are symmetrically arranged about the center. The first end of the third hydraulic cylinder (23) is hinged in the cross frame (3), and the second end is hinged to the bottom surface of the clamping part (10).

7. A misalignment assembly tool for a cylindrical section of a cryogenic liquid tank container according to claim 1, characterized in that Universal wheels (24) are provided at the four corners of the lower end surface of the bottom plate (2).

8. A misalignment assembly tool for a cylinder section of a cryogenic liquid tank container according to claim 1, characterized in that, An inclined strut (9) is provided between one side of the bottom plate (2) away from the cross frame (3) and the bottom plate (2) to form a stable triangular support structure.

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