Turnover tool for large annular component of Tokamak device and using method of turnover tool

Abstract

The invention relates to an overturning tool for a large annular component of a Tokamak device and a using method of the overturning tool, and belongs to the technical field of load hanging devices for cranes or winches. The tool comprises a lower half frame and an upper half frame which are oppositely combined and separated, and the lower half frame is provided with an overturning lifting lug; the upper half frame and the lower half frame are each in an octagon shape defined by eight hollowed-out rectangular frames, an upper half truss and a lower half truss are formed on each of the upper half frame and the lower half frame, and each truss is of a hollowed-out structure formed by connecting a plurality of rods in a star shape and a half star shape. A lower inner side pressing ring and a lower outer side pressing ring are fixedly arranged on the lower half truss; the upper half truss is fixedly provided with an upper inner side pressing ring, a middle pressing ring and an upper outer side pressing ring from inside to outside in sequence. When the turnover tool is used, a large annular component is placed in the turnover tool, the large annular component can be firmly pressed and limited by the upper half frame and the lower half frame in the horizontal direction and the vertical direction, and therefore the large annular component can be turned over multiple times along with the turnover tool. And the large annular component can be conveniently welded for multiple times.

Description

Technical Field

[0001] The present invention relates to the technical field of installation of a Tokamak device for controlled nuclear fusion, in particular to a tool and method for turning over a large annular component of a Tokamak device, belonging to the technical field of load hanging devices for cranes or winches (B66C13 / 08). Background Art

[0002] The Tokamak device is an ultra-large vacuum container, and a large annular component is one of its key components. The main process in the manufacturing of this annular component is the welding of large-size thick plates with a welding thickness of 65 to 145 mm. In order to ensure the quality of the weld, it is necessary to weld it in a double-sided welding manner, so the annular component needs to be welded and flipped multiple times as a whole. The current mainstream practice is flat welding + overhead welding double-sided welding or directly adding lifting lugs to the components for flipping. Among them, the flat welding + overhead welding method has the problems of high welding difficulty and poor welding quality at the overhead welding position. A large number of weld repairs will occur during the process, which is not conducive to product quality control. The method of directly adding lifting lugs for flipping is prone to instability at the moment of flipping to 90°, resulting in great kinetic energy, which has certain safety hazards. At the same time, because the size of this annular component is φ17600×865mm and weighs about 197 tons, a large number of lifting lugs need to be welded, and welding and removal will cause certain damage to the workpiece itself. Summary of the invention

[0003] The technical problem of the present invention is how to non-destructively flip the large annular component of the Tokamak device, thereby facilitating the welding of the large annular component.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a turning tool for a large annular component of a tokamak device, comprising a lower half frame and an upper half frame that can be matched and separated from each other, and turning ears are respectively provided on opposite sides outside the lower half frame; the upper half frame and the lower half frame are respectively octagonal surrounded by eight hollow rectangular frames, and the frames include two layers of side bars consisting of upper and lower parallel fixed layer side bars and frame layer side bars, and vertical support rods that vertically connect the two layers of side bars, and the upper half frame and the lower half frame are both formed with upper half trusses and lower half trusses connected flush with the fixed layer side bars within their octagonal frames, and the trusses are hollow structures formed by multiple rods connected in a M-shaped and half-M-shaped manner; the upper half frame and the lower half frame are both formed with a square center frame flush with the frame layer side bars within their octagonal frames, and the center frame is fixedly connected to the trusses through interlayer connecting rods; The lower half truss is fixedly provided with a lower inner pressure ring and a lower outer pressure ring, the lower half truss is fixedly provided with a plurality of lower leveling rods located between the lower inner pressure ring and the lower outer pressure ring and spaced apart within the circumference, the lower inner pressure ring is fixedly provided with a plurality of lower inner horizontal limiting rods spaced apart along the circumference, the lower outer pressure ring is fixedly provided with a plurality of lower outer horizontal limiting rods spaced apart along the circumference, and the lower inner pressure ring, the lower outer pressure ring and the lower leveling rod are all fixedly provided with a plurality of hydraulic rods spaced apart along the circumference; The upper truss is fixed with an upper inner pressure ring, a middle pressure ring and an upper outer pressure ring from the inside to the outside in sequence, and the upper truss is fixed with a plurality of upper leveling rods located between the middle pressure ring and the upper outer pressure ring and distributed at intervals within the circumference, the upper inner pressure ring is fixed with a plurality of upper inner horizontal limit rods distributed at intervals along the circumference, the middle pressure ring is fixed with a plurality of upper outer horizontal limit rods distributed at intervals along the circumference, and the upper inner pressure ring, the middle pressure ring, the upper outer pressure ring and the upper leveling rod are all fixed with vertical limit rods.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution 2: a method for using a turning tool for a large annular component of a tokamak device using the above technical solution 1, wherein The large annular component includes an upper and lower annular plate assembly, an annular vertical plate assembly vertically fixed between the upper and lower annular plate assemblies, and a plurality of sandwich reinforcement rib assemblies. The lower annular plate assembly includes an inner ring assembly and an outer ring assembly. The annular plate assembly and the annular vertical plate assembly are welded from a plurality of parts evenly divided along the circumference. The following steps are involved: 1) Lay the lower half frame flat, with the fixed layer side bars and lower half trusses at the bottom, and the upper layer side bars, lower inner pressure ring, lower outer pressure ring, lower leveling rod, lower inner horizontal limit rod, lower outer horizontal limit rod and hydraulic rod of the lower half frame facing upwards; 2) Place the lower surfaces of the inner ring assembly and the outer ring assembly of the lower annular plate assembly on the hydraulic rod of the lower half frame, adjust the height of the hydraulic rod so that the parts are in the horizontal plane with uniform level, and then fix them by spot welding. Adjust the lower inner horizontal limit rod and the lower outer horizontal limit rod so that the lower inner horizontal limit rod presses the inner ring edge of the lower annular plate assembly, and the lower outer horizontal limit rod presses the outer ring edge of the lower annular plate assembly; The lower end rings of the sandwich reinforcement rib assembly and the annular vertical plate assembly are respectively fixed to the inner ring assembly of the lower annular flat plate assembly by spot welding, and then the surfaces of the parts of the upper annular flat plate assembly are placed on the upper surface of the sandwich reinforcement rib assembly, and then spot welded after adjusting the uniform level; 3) Lift the upper frame to the top of the large ring-shaped component and lower it so that the upper frame and the lower frame are aligned. The half frames are aligned so that the upper annular plate is located between the upper inner horizontal limit rod of the upper inner pressure ring and the upper outer horizontal limit rod of the middle pressure ring, and the upper layer edge rod, the upper inner pressure ring, the middle pressure ring, the upper outer pressure ring, the upper outer horizontal limit rod, the upper inner horizontal limit rod, the upper leveling rod and the vertical limit rod of the upper half frame are facing downwards; The upper half frame and the frame of the lower half frame are connected and fixed by bolts; Adjust the upper inner horizontal limit rod and the upper outer horizontal limit rod so that the upper inner horizontal limit rod presses the inner edge of the upper annular plate, and the upper outer horizontal limit rod presses the outer edge of the upper annular plate; Adjust the vertical limit rods on the upper outer pressure ring and the upper leveling rod so that they press against the upper surface of the lower annular plate, and adjust the vertical limit rods on the upper inner pressure ring and the middle pressure ring so that they press against the upper surface of the upper annular plate, and realize vertical clamping of large annular components through the vertical limit rods of the upper half frame and the hydraulic rods of the lower half frame; 4) Perform the first butt welding between the parts of the inner ring assembly and the outer ring assembly of the lower annular plate assembly; Perform the first butt welding between the parts of the upper annular plate assembly; Fillet welding is performed between the sandwich reinforcement rib assembly and the upper and lower annular plate assemblies; Perform double-sided welding on the parts of the annular vertical plate assembly; Double-face welding is performed on the annular vertical plate assembly and the upper and lower annular flat plate assemblies; 5) The turning tooling and large annular components are transported to the turning area. The crane lifts the turning tooling and large annular components through the turning lifting lugs, and the hoisting machine is used to provide the turning power. The hoisting connection point of the hoisting machine is located at the fixed layer side rods on both sides of the turning axis of the upper half frame and the lower half frame; 6) After the first flipping of the flipping tooling and the large annular component is completed, it is placed on the support platform, and the second butt welding is continued between the parts of the inner ring assembly and the outer ring assembly of the lower annular plate assembly, and the second butt welding is continued between the parts of the upper annular plate assembly; 7) Flip the turning tool and the large annular component again, continue to butt weld the inner ring assembly and the outer ring assembly of the lower annular plate assembly for the third time, and continue to butt weld the parts of the upper annular plate assembly for the third time; Perform multiple flips from the first flip to complete all welding; 8) Remove the bolts connecting the upper frame and the lower frame, adjust the upper inner horizontal limit rod and the upper outer horizontal limit rod, so that the upper inner horizontal limit rod leaves the inner edge of the upper annular plate, and the upper outer horizontal limit rod leaves the outer edge of the upper annular plate. Lift the upper frame; Adjust the lower inner horizontal limit rod and the lower outer horizontal limit rod so that the lower inner horizontal limit rod leaves the inner edge of the lower annular plate, and the lower outer horizontal limit rod leaves the outer edge of the lower annular plate; Then lift the large ring component out of the lower half frame.

[0006] Compared with the prior art, the beneficial effects of the present invention are: it fully adapts to the appearance requirements of large annular components, divides the flip tooling into two halves, namely an upper frame and a lower frame, and through special design of the structures of the upper frame and the lower frame, when the large annular component is placed in the flip tooling, it can be firmly pressed and limited by the upper frame and the lower frame in the horizontal and vertical directions, so that it can complete multiple flips with the flip tooling; and the upper frame, the lower frame and the frame are all designed as hollow structures, so it is convenient to perform multiple welding on the large annular component.

[0007] A further aspect of the above technical solution is that the frame forms a composite frame structure on two opposite sides of its octagon, wherein one side of the frame is extended outward in parallel as a whole for a short section to form a frame that is completely identical to the frame and the two are connected by a short rod.

[0008] A further feature of the above technical solution is that diagonal braces are fixedly provided between the fixed layer side bars and the elevated layer side bars.

[0009] A further feature of the above technical solution 1 is that the lower inner pressure ring and the lower outer pressure ring are connected and fixed to the lower half truss through vertical struts and diagonal struts.

[0010] A further feature of the above technical solution 1 is that the vertical limit rods on the upper inner pressure ring and the middle pressure ring are shorter than the vertical limit rod on the upper leveling rod.

[0011] A further feature of the above technical solution is that the hollow structure is divided into four corner areas A, four side areas B, a central area C and two complex frame areas D on its projection surface; area A is an equilateral right triangle semi-M-shaped connection structure; area B is a rectangular M-shaped connection structure; area C is a square M-shaped connection structure; and area D is a slender rectangular connection structure.

[0012] The above-mentioned technical solution 1 is further that the flip lifting ear includes an inner fixed plate, an intermediate fixed plate, an outer fixed plate, a rotating shaft, a lifting ear piece and a rolling bearing; the inner fixed plate, the intermediate fixed plate and the outer fixed plate are welded and fixed to the side rod of the fixed layer, the rotating shaft passes through the intermediate fixed plate, the inner fixed plate and the outer fixed plate and is welded and fixed, the rotating shaft and the lifting ear piece are rotatably connected through the rolling bearing, and the lifting ear piece is provided with a lifting hole for lifting.

[0013] The above-mentioned technical solution 1 further stipulates that the structures of the lower inner horizontal limit rod, the lower outer horizontal limit rod, the upper inner horizontal limit rod and the upper outer horizontal limit rod are the same, and all include an I-beam, a web, an adjustment assembly, a limit plate and a reinforcing rib; the adjustment assembly includes a leveling screw and a nut; the I-beam and the web are welded and fixed to each other, and the limit plate and the reinforcing rib are welded and fixed to each other; the leveling screw of the adjustment assembly passes through the I-beam and rests on the limit plate; the horizontal displacement of the limit plate is achieved by the leveling screw of the adjustment assembly.

[0014] A further aspect of the above-mentioned technical solution is that the hydraulic rod comprises a column, a hydraulic jack, a baffle, a top plate, a bottom plate and a bolt adjustment assembly; the hydraulic rod is welded to the surfaces of the lower inner pressure ring, the lower outer pressure ring and the lower leveling rod respectively; the hydraulic jack is located between the column and the top plate and is fixed or removed by the baffle and screws; the vertical displacement between the column and the top plate is adjusted by a bolt adjustment assembly; the vertical limiting mechanism comprises the same column, top plate, bottom plate and bolt adjustment assembly as the hydraulic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the general assembly structure of a turning tool for a large annular component of a tokamak device in an embodiment; Figure 2 is from Figure 1 A schematic diagram of the structure of the lower half frame decomposed in FIG. Figure 3 is from Figure 1 The schematic diagram of the structure in which the upper half frame is decomposed and flipped 180 degrees; Figure 4 is from Figure 2 or Figure 3 Orthographic view of the exploded frame and truss parts; Figure 5 is from Figure 1 Schematic diagram of the structure of the lifting lug decomposed in FIG. Figure 6 yes Figure 2 or Figure 3 A schematic diagram of the structure of the horizontal limit rod decomposed in FIG. Figure 7 yes Figure 2 A schematic diagram of the structure of the hydraulic rod decomposed in FIG. Figure 8 yes Figure 3 A schematic diagram of the structure of the vertical limit rod exploded in FIG. Fig. 9 It is a schematic diagram of the structure of a large ring-shaped component; Fig.10 yes Fig. 9 Bottom view of Fig.11 yes Figure 1 A schematic cross-sectional view of a large annular component placed in the middle; Fig.12 yes Fig.11 A simplified enlarged view of the local area at point I. DETAILED DESCRIPTION Example

[0017] A turning tool for a large annular component of a tokamak device according to this embodiment, such as Figure 1 As shown, it comprises a lower half frame 1 and an upper half frame 2 which can be joined and separated from each other, and two flip ears 3 are respectively arranged on opposite sides of the lower half frame 1. Figure 1 , Figure 2 and Figure 3 As shown, the upper half frame 2 and the lower half frame 1 are respectively octagonal with eight hollow rectangular frames, the frames include two layers of side bars, namely, the fixed layer side bars 4 and the erected layer side bars 5, which are parallel to each other, and the vertical support bars 7 vertically connecting the two layers of side bars 4 and 5. The upper half frame 2 and the lower half frame 1 are both formed with the upper half truss 2-1 and the lower half truss 1-1 which are connected flush with the fixed layer side bars 4 within their octagonal frames. Figure 4 As shown, the trusses (upper truss 2-1 and lower truss 1-1) are both connected by multiple rods in a cross-shaped and half-cross-shaped manner to form a hollow structure; the upper frame 2 and the lower frame 1 are both formed with a square center frame 40 flush with the upper layer side rods 5 within their octagonal frames, and the center frame 40 is fixedly connected to the trusses (upper truss 2-1 and lower truss 1-1) by interlayer connecting rods 41.

[0018] In this embodiment, the frame forms a duplicate frame structure 39 on two opposite sides of its octagon. The duplicate frame 39 structure is that one side of the frame is extended outward in parallel as a whole for a short section to form a frame that is exactly the same as the frame, and the two (the frame and the duplicated frame) are connected by a short rod; a diagonal support rod 6 is also fixed between the fixed layer side rod 4 and the elevated layer side rod 5.

[0019] like Figure 2As shown, the lower half truss 1-1 is fixedly provided with a lower inner pressure ring 9 and a lower outer pressure ring 8, and the lower half truss 1-1 is fixedly provided with a plurality of lower leveling rods 14 located between the lower inner pressure ring 9 and the lower outer pressure ring 8 and spaced within the circumference, the lower inner pressure ring 9 is fixedly provided with a plurality of lower inner horizontal limit rods 10 spaced along the circumference, the lower outer pressure ring 8 is fixedly provided with a plurality of lower outer horizontal limit rods 12 spaced along the circumference, and the lower inner pressure ring 9, the lower outer pressure ring 8 and the lower leveling rod 14 are all fixedly provided with a plurality of hydraulic rods 13 spaced along the circumference. In this embodiment, the lower inner pressure ring 9 and the lower outer pressure ring 8 are connected and fixed to the lower half truss 1-1 through other vertical struts and diagonal struts, which can be imagined and will not be described or illustrated again.

[0020] like Figure 3 As shown, the upper half truss 2-1 is fixedly provided with an upper inner pressure ring 35, a middle pressure ring 26 and an upper outer pressure ring 36 from the inside to the outside in sequence, the upper half truss 2-1 is fixedly provided with a plurality of upper leveling rods 37 located between the middle pressure ring 26 and the upper outer pressure ring 36 and spaced apart within the circumference, the upper inner pressure ring 35 is fixedly provided with a plurality of upper inner horizontal limiting rods 27 spaced apart along the circumference, the middle pressure ring is fixedly provided with a plurality of upper outer horizontal limiting rods 38 spaced apart along the circumference, and the upper inner pressure ring 35, the middle pressure ring 26, the upper outer pressure ring 36 and the upper leveling rod 37 are all fixedly provided with vertical limiting rods 29, 28. In this embodiment, the vertical limiting rods 29 on the upper inner pressure ring 35 and the middle pressure ring 26 are shorter than the vertical limiting rods 28 on the upper leveling rod 37 and the upper outer pressure ring 36.

[0021] like Figure 4 As shown, the upper half truss 2-1 or the lower half truss 1-1 is formed by connecting a plurality of rods in a cross-shaped or half cross-shaped manner to form a hollow structure. The hollow structure of this embodiment is divided into four corner areas A, four side areas B, a central area C and two frame areas D on its projection surface; area A is an equilateral right triangle half cross-shaped connection structure; area B is a rectangular cross-shaped connection structure; area C is a square cross-shaped connection structure; and area D is a slender rectangular connection structure.

[0022] like Figure 5 As shown, the flip ear 3 of this embodiment includes: an inner fixing plate 20, an intermediate fixing plate 21, an outer fixing plate 22, a rotating shaft 23, a lifting ear piece 24 and a rolling bearing 25; the inner fixing plate 20, the intermediate fixing plate 21 and the outer fixing plate 22 are welded and fixed on the fixed layer side rod 4; the rotating shaft 23 passes through the inner fixing plate 20, the intermediate fixing plate 21 and the outer fixing plate 22 and is welded and fixed; the rotating shaft 23 and the lifting ear piece 24 are rotatably connected by the rolling bearing 25; the lifting ear piece 24 is provided with a lifting hole for lifting.

[0023] The structures of the lower inner horizontal limiting rod 10, the lower outer horizontal limiting rod 12, the upper inner horizontal limiting rod 27 and the upper outer horizontal limiting rod 38 of this embodiment are completely the same. Figure 6 As shown, it includes an I-beam 30, a web 31, an adjustment assembly 19, a limit plate 32 and a reinforcing rib 33; the adjustment assembly 19 includes a leveling screw and a nut; the I-beam 30 and the web 31 are welded and fixed to each other, and the limit plate 32 and the reinforcing rib 33 are welded and fixed to each other; the leveling screw of the adjustment assembly 19 passes through the I-beam 30 and rests on the limit plate 32, and the horizontal displacement of the limit plate 32 is achieved by the leveling screw of the adjustment assembly 19.

[0024] like Figure 7 As shown, the hydraulic rods 13 of this embodiment are no less than 56, and each hydraulic rod 13 includes a column 15, a hydraulic jack 16, a baffle 17, a top plate 18, a bottom plate 42 and a bolt adjustment assembly 19; the hydraulic rods 13 are respectively welded to the surfaces of the lower inner pressure ring 9, the lower outer pressure ring 8 and the lower leveling rod 14; the hydraulic jack 16 is located between the column 15 and the top plate 18 and is fixed or removed by the baffle 17 and screws; the vertical displacement between the column 15 and the top plate 18 is adjusted by the bolt adjustment assembly 19.

[0025] like Figure 8 As shown, the vertical limiting mechanisms 28 and 29 of this embodiment are similar in structure to the hydraulic rod 13, and also include a column 15, a top plate 18, a bottom plate 42 and a bolt adjustment assembly 19, but the hydraulic jack 16 and the baffle 17 are eliminated.

[0026] like Fig. 9 and Fig.10 As shown, the large annular component 100 to be welded and assembled in this embodiment includes upper and lower annular plate assemblies 101 and 102, an annular vertical plate assembly 103 and a plurality of sandwich reinforcement rib assemblies 104 vertically fixed between the upper and lower annular plate assemblies, and the lower annular plate assembly 102 includes an inner ring assembly 102-1 and an outer ring assembly 102-2; a method for using a turning tool for a large annular component of a tokamak device in this embodiment includes the following steps: 1) Lay the lower half frame 1 flat, with the fixed layer side rod 4 and the lower half truss 1-1 of the lower half frame 1 at the bottom, and the upper layer side rod 5, the lower inner pressure ring 9, the lower outer pressure ring 8, the lower leveling rod 14, the lower inner horizontal limit rod 10, the lower outer horizontal limit rod 12 and the hydraulic rod 13 of the lower half frame 2 facing upward; 2) Place the parts of the inner ring assembly 102-1 and the outer ring assembly 102-2 of the lower annular plate assembly 102 on the hydraulic rod 1 of the lower half frame 1. In this embodiment, the lower surface of each part falls on the top plate 18 of the top surface of the hydraulic rod 13, adjust the height of the hydraulic rod 13, make the parts of the lower annular plate assembly 102 in the horizontal plane with uniform level, and then fix them by spot welding, adjust the lower inner horizontal limit rod 10 and the lower outer horizontal limit rod 12, make the lower inner horizontal limit rod 10 press the inner ring edge of the lower annular plate assembly 102, and make the lower outer horizontal limit rod 12 press the outer ring edge of the lower annular plate assembly 102; The lower end circles of the sandwich reinforcement rib assembly 104 and the annular vertical plate assembly 103 are respectively fixed to the inner circle assembly 102-1 of the lower annular plate assembly 102 by spot welding, and then the lower surfaces of the parts of the upper annular plate assembly 101 are placed on the upper surface of the sandwich reinforcement rib assembly 104, and then spot welded after adjusting the uniform level; 3) The upper half frame 2 is hoisted to the top of the large annular component 100 and dropped to align the upper half frame 2 with the lower half frame 1, so that the upper annular flat plate assembly 101 is located between the upper inner horizontal limit rod 27 of the upper inner pressure ring 35 and the upper outer horizontal limit rod 38 of the middle pressure ring 26, as shown in FIG. Fig.11 and Fig.12 As shown; at this time, the upper layer side rod 5, the upper inner pressure ring 35, the middle pressure ring 26, the upper outer pressure ring 36, the upper outer horizontal limit rod 38, the upper inner horizontal limit rod 27, the upper leveling rod 37 and the vertical limit rods 29 and 28 of the upper frame 1 are facing downward.

[0027] The upper half frame 2 and the lower half frame 1 are connected and fixed by bolts, and the gap between them shall not be greater than 0.5mm, otherwise a rubber pad shall be added; Adjust the upper inner horizontal limit rod 27 and the upper outer horizontal limit rod 38 so that the upper inner horizontal limit rod 27 presses the inner edge of the upper annular plate assembly 101, and the upper outer horizontal limit rod 38 presses the outer edge of the upper annular plate assembly 101. Fig.11 and Fig.12 As shown; Adjust the vertical limit rods 289 on the upper outer pressure ring 36 and the upper leveling rod 37 to press against the upper surface of the upper annular plate; adjust the vertical limit rods 29 on the upper inner pressure ring 35 and the middle pressure ring 26 to press against the upper surface of the lower annular plate assembly 102. In this way, the large annular component is vertically clamped from below and above the large annular component by the hydraulic rod 13 of the lower half frame 1 and the vertical limit rods 28, 29 of the upper half frame 2, respectively. Fig.12 shown.

[0028] 4) Performing the first butt welding between the parts of the inner ring assembly 102 - 1 and the outer ring assembly 102 - 2 of the lower annular plate assembly 102 ; Fillet welding is performed between the sandwich reinforcement rib assembly 104 and the upper and lower annular plate assemblies 101 and 102; Performing the first butt welding between the parts of the upper annular plate assembly 101; Perform double-sided welding on the parts of the annular vertical plate assembly 103; Double-sided welding is performed on the annular vertical plate assembly 103 and the upper and lower annular flat plate assemblies 101 and 102; 5) The turning tool and the large annular component 100 are transported to the turning area. Two cranes are used to lift the turning tool and the large annular component 100 through two turning lifting eyes 3 on both sides of the lower half frame 1. The turning power is provided by the hoists respectively provided on both sides of the whole tool. The hoisting connection points of the hoists are located at the fixed layer side rods 4 on both sides of the turning axis of the upper half frame 2 and the lower half frame 1; 6) After the first flipping of the flipping tool and the large annular component 100 is completed, it is placed on the support platform, and the first butt welding is continued between the inner ring assembly 102-1 and the outer ring assembly 102-2 of the lower annular plate assembly 102, and the second butt welding is continued between the parts of the upper annular plate assembly 101; 7) Flip the turning tool and the large annular component again, continue to perform the first butt welding between the parts of the inner ring assembly 102-1 and the outer ring assembly 102-2 of the lower annular plate assembly 102, and continue to perform the third butt welding between the parts of the upper annular plate assembly 101; Multiple flips are performed starting from the first flip to complete all welding; in this embodiment, five flips are selected, and the number of flips is an odd number; 8) Remove the bolts connecting the upper half frame 2 and the frame of the lower half frame 1, adjust the upper inner horizontal limit rod 27 and the upper outer horizontal limit rod 38, so that the upper inner horizontal limit rod 27 leaves the inner edge of the upper annular plate assembly 101, and the upper outer horizontal limit rod 38 leaves the outer edge of the upper annular plate assembly 101. Lift the upper frame 2; Adjust the lower inner horizontal limit rod 10 and the lower outer horizontal limit rod 12 so that the lower inner horizontal limit rod 10 leaves the inner edge of the lower annular plate assembly 102, and the lower outer horizontal limit rod 12 leaves the outer edge of the lower annular plate assembly 102; The large annular component 100 is then lifted out from the lower half frame 1 .

[0029] The above description is only a preferred embodiment of the present invention, but the present invention is not limited thereto. All equivalent replacements or equivalent changes of the concepts and technical solutions according to the present invention should be included in the protection scope of the present invention.

Claims

1. A turning tool for a large annular component of a Tokamak device, characterized in that : It contains a lower half frame and an upper half frame which can be matched and separated from each other, and the opposite sides outside the lower half frame are respectively provided with flip ears; the upper half frame and the lower half frame are respectively octagonal surrounded by eight hollow rectangular frames, and the frames include two layers of side rods consisting of upper and lower parallel fixed layer side rods and framed layer side rods, and vertical support rods vertically fixedly connected to the two layers of side rods, and the upper half frame and the lower half frame are both formed with upper half trusses and lower half trusses connected flush with the fixed layer side rods within their octagonal frames, and the trusses are hollow structures formed by multiple rods connected in a M-shaped and half-M-shaped manner; the upper half frame and the lower half frame are both formed with a square center frame flush with the framed layer side rods within their octagonal frames, and the center frame is fixedly connected to the trusses through interlayer connecting rods; The lower half truss is fixedly provided with a lower inner pressure ring and a lower outer pressure ring, the lower half truss is fixedly provided with a plurality of lower leveling rods located between the lower inner pressure ring and the lower outer pressure ring and spaced apart within the circumference, the lower inner pressure ring is fixedly provided with a plurality of lower inner horizontal limiting rods spaced apart along the circumference, the lower outer pressure ring is fixedly provided with a plurality of lower outer horizontal limiting rods spaced apart along the circumference, and the lower inner pressure ring, the lower outer pressure ring and the lower leveling rod are all fixedly provided with a plurality of hydraulic rods spaced apart along the circumference; The upper truss is fixed with an upper inner pressure ring, a middle pressure ring and an upper outer pressure ring from the inside to the outside in sequence, and the upper truss is fixed with a plurality of upper leveling rods located between the middle pressure ring and the upper outer pressure ring and distributed at intervals within the circumference, the upper inner pressure ring is fixed with a plurality of upper inner horizontal limit rods distributed at intervals along the circumference, the middle pressure ring is fixed with a plurality of upper outer horizontal limit rods distributed at intervals along the circumference, and the upper inner pressure ring, the middle pressure ring, the upper outer pressure ring and the upper leveling rod are all fixed with vertical limit rods.

2. The turning tool for large annular components of a Tokamak device according to claim 1, characterized in that: The frame forms a composite frame structure on two opposite sides of its octagon. The composite frame structure is formed by extending one side of the frame outward in parallel for a short section to form a frame that is completely identical to the frame and connecting the two with a short rod.

3. The turning tool for the large annular component of the Tokamak device according to claim 1, characterized in that: Diagonal bracing rods are also fixedly arranged between the fixed layer side rods and the erected layer side rods.

4. The turning tool for large annular components of a Tokamak device according to claim 1, characterized in that: The lower inner pressure ring and the lower outer pressure ring are connected and fixed to the lower half truss through vertical support rods and diagonal support rods.

5. The turning tool for large annular components of a Tokamak device according to claim 1, characterized in that: The vertical limiting rods on the upper inner pressing ring and the middle pressing ring are shorter than the vertical limiting rods on the upper leveling rod and the upper outer pressing ring.

6. The turning tool for large annular components of a Tokamak device according to claim 1, characterized in that: The hollow structure is divided into four corner areas A, four side areas B, a central area C and two complex frame areas D on its projection surface; area A is an equilateral right triangle semi-M-shaped connection structure; area B is a rectangular M-shaped connection structure; area C is a square M-shaped connection structure; area D is a slender rectangular connection structure.

7. The turning tool for large annular components of a Tokamak device according to claim 1, characterized in that: The flip lifting ear comprises an inner fixing plate, an intermediate fixing plate, an outer fixing plate, a rotating shaft, a lifting ear piece and a rolling bearing; the inner fixing plate, the intermediate fixing plate and the outer fixing plate are welded and fixed on the side rod of the fixed layer, the rotating shaft passes through the intermediate fixing plate, the inner fixing plate and the outer fixing plate and is welded and fixed, the rotating shaft and the lifting ear piece are rotatably connected via the rolling bearing, and the lifting ear piece is provided with a lifting hole for lifting.

8. The turning tool for the large annular component of the Tokamak device according to claim 1, characterized in that: The lower inner horizontal limit rod, the lower outer horizontal limit rod, the upper inner horizontal limit rod and the upper outer horizontal limit rod have the same structure, and all include an I-shaped rib, a web, an adjustment assembly, a limit plate and a reinforcing rib; the adjustment assembly includes a leveling screw and a nut; the I-shaped rib and the web are welded and fixed to each other, and the limit plate and the reinforcing rib are welded and fixed to each other; the leveling screw of the adjustment assembly passes through the I-shaped rib and rests on the limit plate; the horizontal displacement of the limit plate is achieved by the leveling screw of the adjustment assembly.

9. The turning tool for large annular components of a Tokamak device according to claim 1, characterized in that: The hydraulic rod includes a column, a hydraulic jack, a baffle, a top plate, a bottom plate and a bolt adjustment assembly; the hydraulic rod is welded to the surfaces of the lower inner pressure ring, the lower outer pressure ring and the lower leveling rod respectively; the hydraulic jack is located between the column and the top plate and is fixed or removed by the baffle and screws; the vertical displacement between the column and the top plate is adjusted by the bolt adjustment assembly; the vertical limiting mechanism includes the same column, top plate, bottom plate and bolt adjustment assembly as the hydraulic rod.

10. A method for using a turning tool for a large annular component of a Tokamak device according to any one of claims 1 to 9, wherein the large annular component comprises an upper and lower annular plate assembly, an annular vertical plate assembly vertically fixed between the upper and lower annular plate assemblies, and a plurality of sandwich reinforcement rib assemblies, the lower annular plate assembly comprises an inner ring assembly and an outer ring assembly, and the annular plate assembly and the annular vertical plate assembly are welded from a plurality of parts evenly divided along the circumference; characterized in that The following steps are involved: 1) Lay the lower half frame flat, with the fixed layer side bars and lower half trusses at the bottom, and the upper layer side bars, lower inner pressure ring, lower outer pressure ring, lower leveling rod, lower inner horizontal limit rod, lower outer horizontal limit rod and hydraulic rod of the lower half frame facing upwards; 2) Place the lower surfaces of the inner ring assembly and the outer ring assembly of the lower annular plate assembly on the hydraulic rod of the lower half frame, adjust the height of the hydraulic rod so that the parts are in the horizontal plane with uniform level, and then fix them by spot welding. Adjust the lower inner horizontal limit rod and the lower outer horizontal limit rod so that the lower inner horizontal limit rod presses the inner ring edge of the lower annular plate assembly, and the lower outer horizontal limit rod presses the outer ring edge of the lower annular plate assembly; The lower end circles of the sandwich reinforcement rib assembly and the annular vertical plate assembly are respectively fixed to the inner circle assembly of the lower annular flat plate assembly by spot welding, and then the lower surfaces of the parts of the upper annular flat plate assembly are placed on the upper surfaces of the sandwich reinforcement rib assembly and the annular vertical plate assembly, and then spot welded after adjusting the uniform level; 3) Lift the upper frame to the top of the large ring-shaped component and lower it so that the upper frame and the lower frame are aligned. The half frames are aligned so that the upper annular plate is located between the upper inner horizontal limit rod of the upper inner pressure ring and the upper outer horizontal limit rod of the middle pressure ring, and the upper layer edge rod, the upper inner pressure ring, the middle pressure ring, the upper outer pressure ring, the upper outer horizontal limit rod, the upper inner horizontal limit rod, the upper leveling rod and the vertical limit rod of the upper half frame are facing downwards; The upper half frame and the frame of the lower half frame are connected and fixed by bolts; Adjust the upper inner horizontal limit rod and the upper outer horizontal limit rod so that the upper inner horizontal limit rod presses the inner edge of the upper annular plate, and the upper outer horizontal limit rod presses the outer edge of the upper annular plate; Adjust the vertical limit rods on the upper outer pressure ring and the upper leveling rod so that they press against the upper surface of the lower annular plate, and adjust the vertical limit rods on the upper inner pressure ring and the middle pressure ring so that they press against the upper surface of the upper annular plate, and realize vertical clamping of large annular components through the vertical limit rods of the upper half frame and the hydraulic rods of the lower half frame; 4) Perform the first butt welding between the parts of the inner ring assembly and the outer ring assembly of the lower annular plate assembly; Perform the first butt welding between the parts of the upper annular plate assembly; Fillet welding is performed between the sandwich reinforcement rib assembly and the upper and lower annular plate assemblies; Perform double-sided welding on the parts of the annular vertical plate assembly; Double-face welding is performed on the annular vertical plate assembly and the upper and lower annular flat plate assemblies; 5) The turning tooling and large annular components are transported to the turning area. The crane lifts the turning tooling and large annular components through the turning lifting lugs, and the hoisting machine is used to provide the turning power. The hoisting connection point of the hoisting machine is located at the fixed layer side rods on both sides of the turning axis of the upper half frame and the lower half frame; 6) After the first flipping of the flipping tooling and the large annular component is completed, it is placed on the support platform, and the second butt welding is continued between the parts of the inner ring assembly and the outer ring assembly of the lower annular plate assembly, and the second butt welding is continued between the parts of the upper annular plate assembly; 7) Flip the turning tool and the large annular component again, continue to butt weld the inner ring assembly and the outer ring assembly of the lower annular plate assembly for the third time, and continue to butt weld the parts of the upper annular plate assembly for the third time; Perform multiple flips from the first flip to complete all welding; 8) Remove the bolts connecting the upper frame and the lower frame, adjust the upper inner horizontal limit rod and the upper outer horizontal limit rod, so that the upper inner horizontal limit rod leaves the inner edge of the upper annular plate, and the upper outer horizontal limit rod leaves the outer edge of the upper annular plate. Lift the upper frame; Adjust the lower inner horizontal limit rod and the lower outer horizontal limit rod so that the lower inner horizontal limit rod leaves the inner edge of the lower annular plate, and the lower outer horizontal limit rod leaves the outer edge of the lower annular plate; Then lift the large ring component out of the lower half frame.

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