Method for installing ssat tooling for a tokamak

Abstract

The application relates to the technical field of fusion device installation, and discloses an installation method of an SSAT tool for a tokamak, which comprises the following steps: embedding a rigid component on the ground; installing a first central column and a guide rail assembly on the rigid component; installing a first cantilever beam on the top of the first central column; installing a second central column on the top of the first central column, and arranging a plurality of second cantilever beams on the second central column in an axial direction; installing an outer side column assembly on the side of the guide rail assembly far from the first central column; installing a connecting cross beam between the second central column and the outer side column assembly; installing magnet support columns on the opposite sides of the guide rail assembly; installing a cold screen support column on the side of the guide rail assembly far from the first central column; and installing a rotating frame on the guide rail assembly, and the rotating frame is connected with the cantilever beam assembly. The installation method of the SSAT tool for the tokamak can meet the final installation precision requirement of the SSAT tool.

Description

Technical Field

[0001] This invention relates to the field of fusion device installation technology, and in particular to an installation method for an SSAT fixture used in a tokamak. Background Technology

[0002] The SSAT (Sector Sub-Assembly Tool) is the most important installation tool for the tokamak fusion device. Its most important function is to correctly assemble the three components of the tokamak device: the vacuum chamber sector, the cold shield sector, and the TF (Toroidal Field) magnet.

[0003] Therefore, the precision of the SSAT fixture itself directly determines the assembly precision of the vacuum chamber sector, cold screen sector, and TF magnet. In the process of SSAT fixture installation, how to improve the precision of the SSAT fixture itself has become one of the urgent problems to be solved. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an installation method for an SSAT fixture used in a tokamak. This installation method ensures that the final installation accuracy of the SSAT fixture meets requirements, thereby facilitating the correct assembly of the vacuum chamber sector, cold shield sector, and TF magnet using the SSAT fixture. This improves the assembly accuracy of these three components and solves the technical problem of poor accuracy inherent in the SSAT fixture itself.

[0005] According to an embodiment of the present invention, an installation method for an SSAT fixture for a tokamak is provided. The SSAT fixture is used to combine a vacuum chamber sector, a cold shield sector, and a TF magnet. The SSAT fixture includes a first central column, a second central column, a rotating frame, a guide rail assembly, a cantilever beam assembly, an outer column assembly, a connecting beam, a magnet support column, and a cold shield support column. The cantilever beam assembly includes a first cantilever beam and a second cantilever beam. The installation method of the SSAT fixture includes the following steps: pre-embedding a rigid component in the ground; installing the first central column and the guide rail assembly on the rigid component, the guide rail assembly being sleeved on the outer periphery of the first central column; and installing the first central column on the top of the first central column. The first cantilever beam is installed on the guide rail assembly, with one end of the first cantilever beam fitted around the outer periphery of the first central column; a second central column is installed on top of the first central column, and multiple second cantilever beams are arranged at intervals along its axial direction on the second central column; the outer column assembly is installed on the side of the guide rail assembly away from the first central column; the connecting beam is installed between the second central column and the outer column assembly; the magnet support columns are installed on opposite sides of the guide rail assembly; the cold screen support column is installed on the side of the guide rail assembly away from the first central column; and the rotating frame is installed on the guide rail assembly, the rotating frame connecting the cantilever beam assembly.

[0006] The installation method of the SSAT fixture for tokamak according to the embodiments of the present invention enables the final installation accuracy of the SSAT fixture to meet the requirements, thereby facilitating the correct assembly of the three components—vacuum chamber sector, cold screen sector, and TF magnet—using the SSAT fixture and improving the assembly accuracy of the vacuum chamber sector, cold screen sector, and TF magnet.

[0007] In some embodiments, before installing the first center post and guide rail assembly on the rigid member, the steps further include: adjusting the flatness of the rigid member; and installing a pad on the upper surface of the rigid member.

[0008] In some embodiments, the pad is a low-alloy high-strength structural steel plate.

[0009] In some embodiments, the guide rail assembly includes a first guide rail and a second guide rail, the first guide rail being spaced apart and sleeved on the outer periphery of the second guide rail, the first guide rail and / or the second guide rail including a plurality of guide segments sequentially connected along its circumference, and the steps of installing the first center post and the guide rail assembly on the rigid member include: adjusting the concentricity of the guide rail assembly and the first center post; adjusting the flatness of a single guide segment and the coplanarity of the plurality of guide segments; fixing the guide rail assembly to the rigid member using pressure blocks; and installing limiting members at both circumferential ends of the guide rail assembly, the limiting members being used to limit the movement range of the rotating frame to prevent the rotating frame from moving out of the guide rail assembly.

[0010] In some embodiments, after the first center post and the guide rail assembly are mounted on the rigid member, the method further includes the step of mounting a wear-resistant component on the upper surface of the guide rail assembly.

[0011] In some embodiments, the wear-resistant component is a high-strength wear-resistant steel plate; and / or, the thickness of the wear-resistant component ranges from 20mm to 30mm.

[0012] In some embodiments, the second central column includes a first central column section, a second central column section, a third central column section, a fourth central column section, and a fifth central column section. When installing the second central column on top of the first central column, the following steps are included: sleeved a second cantilever beam at one end of the first central column section; installing the first central column section onto the top of the first central column and controlling the second cantilever beam to be positioned close to the first central column, and adjusting the concentricity of the first central column section relative to the first central column and its verticality relative to the ground; installing the second central column section on top of the first central column, and adjusting the concentricity of the second central column section relative to the first central column and its verticality relative to the ground; in the second… The third central column is installed at the top of the first central column, and the concentricity of the third central column relative to the first central column and its verticality relative to the ground are adjusted. A second cantilever beam is fitted onto the end of the third central column away from the second central column. The second cantilever beam is fitted onto one end of the fourth central column. The fourth central column is installed on top of the third central column, and the second cantilever beam is positioned close to the third central column. The concentricity of the fourth central column relative to the first central column and its verticality relative to the ground are adjusted. A fifth central column is installed on top of the fourth central column, and the concentricity of the fifth central column relative to the first central column and its verticality relative to the ground are adjusted.

[0013] In some embodiments, the outer column assembly includes a first column and a second column, the outer column assembly and the first central column are arranged along a first direction, the first column and the second column are arranged along a second direction, the second direction intersecting the first direction; when installing the outer column assembly on the side of the guide rail assembly away from the first central column, the following steps are included: measuring and adjusting the concentricity of the first column and the second column relative to the first central column and their verticality relative to the ground; fixing the first column and the second column; installing a support beam between the first column and the second column, the two ends of the support beam being connected to the first column and the second column respectively; installing a radial beam support on the upper surface of the support beam, the radial beam support being used to support the hoisting mechanism; installing an auxiliary boom on the side of the support beam facing the first central column, the auxiliary boom being used to hoist the TF magnet.

[0014] In some embodiments, both the first column and the second column include multiple column sections, which are stacked sequentially along the axial direction of the first central column.

[0015] In some embodiments, the rotating frame includes a rotating platform, a support frame, a first adjustment unit, and a second adjustment unit. The rotating platform is mounted on the guide rail assembly. The support frame and the first adjustment unit are spaced apart on the rotating platform. The support frame is adapted to mount the TF magnet and the cold screen sector, and the support frame is connected to the cantilever beam assembly. The guide rail assembly and the cantilever beam assembly cooperate to guide the movement of the support frame. The second adjustment unit is mounted on the support frame. Both the first adjustment unit and the second adjustment unit are used to adjust the position of the TF magnet and the cold screen sector on the support frame. When installing the rotating frame on the guide rail assembly, the following steps are included: movably connecting the rotating platform to the guide rail assembly; spaced the support frame and the first adjustment unit on the rotating platform, and connecting the rotating platform to the cantilever beam assembly; and mounting the second adjustment unit on the support frame.

[0016] In some embodiments, after the rotating frame is installed on the guide rail assembly, the following steps are further included: installing a control assembly for controlling the operation of the first adjustment unit and the second adjustment unit; installing a pedestrian platform; and debugging the SSAT fixture.

[0017] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a flowchart illustrating the installation method of the SSAT tooling for a tokamak according to some embodiments of the present invention;

[0020] Figure 2 This is a flowchart of a portion of an installation method for an SSAT tooling for a tokamak according to some embodiments of the present invention;

[0021] Figure 3 This is a flowchart of another part of the method for installing an SSAT tooling for a tokamak according to some embodiments of the present invention;

[0022] Figure 4 This is a schematic diagram of an SSAT fixture for a tokamak according to some embodiments of the present invention;

[0023] Figure 5 This is a top view of the SSAT tooling for a tokamak according to some embodiments of the present invention after the first center column and guide rail assembly are installed;

[0024] Figure 6 This is a partial cross-sectional view of the rigid components, pads, guide rail assemblies, and wear-resistant parts in some embodiments of the present invention.

[0025] Figure 7 This is a schematic diagram of the SSAT tooling for a tokamak after the outer column assembly has been installed, according to some embodiments of the present invention.

[0026] Figure 8 This is a schematic diagram of the SSAT fixture for a tokamak after mounting the magnet support column and the cold screen support column according to some embodiments of the present invention;

[0027] Figure 9 for Figure 8 A diagram from another angle.

[0028] Figure label:

[0029] 1000, SSAT tooling;

[0030] 100. First central pillar;

[0031] 200. Second central column;

[0032] 210. First central column; 220. Second central column; 230. Third central column;

[0033] 240. Fourth section central pillar; 250. Fifth section central pillar;

[0034] 300. Rotating frame;

[0035] 310. Rotating platform; 320. Support frame;

[0036] 330. First adjustment unit; 340. Second adjustment unit;

[0037] 400. Guide rail assembly; 410. First guide rail; 420. Second guide rail; 430. Guide section;

[0038] 500. Cantilever beam assembly; 510. First cantilever beam; 520. Second cantilever beam;

[0039] 600. Outer column assembly;

[0040] 610. First column; 620. Second column; 630. Supporting beam;

[0041] 640. Radial beam support; 650. Auxiliary boom; 660. Column;

[0042] 700. Connecting crossbeams;

[0043] 800. Magnet support column;

[0044] 900, Cold Screen Support Column;

[0045] 910. Rigid components; 920. Pads; 930. Pressure blocks; 940. Limiting components; 950. Wear-resistant parts;

[0046] 970, People's Bank of China platform. Detailed Implementation

[0047] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] The following describes the installation method of the SSAT fixture 1000 for a tokamak according to an embodiment of the present invention with reference to the accompanying drawings.

[0050] Among them, the SSAT tooling 1000 is used to combine the vacuum chamber sector, the cold screen sector and the TF magnet.

[0051] In a specific example, the SSAT fixture 1000 is used to assemble the vacuum chamber sector, cold screen sector, and TF magnet into a pre-assembled component. The pre-assembled component is then hoisted into the main unit hall and assembled into a ring with other pre-assembled components.

[0052] Combination Figure 4 , Figure 7 and Figure 8 As shown, the SSAT fixture 1000 includes a first central column 100, a second central column 200, a rotating frame 300, a guide rail assembly 400, a cantilever beam assembly 500, an outer column assembly 600, a connecting beam 700, a magnet support column 800, and a cold screen support column 900. The first central column 100 and the second central column 200 work together to simulate the center of a tokamak. This ensures that the vacuum chamber sector, cold screen sector, and TF magnet, after being assembled using the SSAT fixture 1000, are accurately positioned relative to each other after entering the main unit hall.

[0053] Combination Figure 4 , Figure 7 and Figure 8 As shown, the cantilever beam assembly 500 includes a first cantilever beam 510 and a second cantilever beam 520. The rotating frame 300 is mounted on the guide rail assembly 400 and connects the first cantilever beam 510 and / or the second cantilever beam 520. The guide rail assembly 400 and the cantilever beam assembly 500 cooperate to guide the movement of the rotating frame 300. The rotating frame 300 is suitable for mounting TF magnets and cold screen sectors. This refers to the following: when the rotating frame 300 is mounted on the guide rail assembly 400, the rotating frame 300 is connected to the first cantilever beam 510; or, the rotating frame 300 is connected to the second cantilever beam 520; or, the rotating frame 300 is simultaneously connected to the first cantilever beam 510 and the second cantilever beam 520, so as to guide the movement of the rotating frame 300 using the first cantilever beam 510 and / or the second cantilever beam 520, thereby improving the positional accuracy of the rotating frame 300 during movement, and thus improving the positional accuracy of the TF magnet and the cold screen sector, so as to achieve precise combination of the vacuum chamber sector, the cold screen sector and the TF magnet using the SSAT fixture 1000.

[0054] The outer column assembly 600 and the second central column 200 cooperate to support the hoisting mechanism (not shown in the figure), which is used at least for hoisting the vacuum chamber sector. This reduces the difficulty of hoisting the vacuum chamber sector, thereby facilitating the precise combination of the vacuum chamber sector, cold screen sector, and TF magnet using the SSAT fixture 1000.

[0055] In some embodiments, the outer column assembly 600 and the second central column 200 are respectively connected to the opposite ends of the hoisting mechanism to realize the cooperation of the outer column assembly 600 and the second central column 200 to support the hoisting mechanism, improve the positional stability of the hoisting mechanism, ensure the hoisting accuracy of the hoisting mechanism, and thus improve the combination accuracy of the vacuum chamber sector, the cold screen sector and the TF magnet.

[0056] like Figure 7 and Figure 8 As shown, the connecting beam 700 connects the second central column 200 and the outer column assembly 600 to fix the second central column 200 and the outer column assembly 600. This stabilizes the relative position of the second central column 200 and the outer column assembly 600, thereby improving the structural stability of the SSAT fixture 1000 and ensuring that the structural accuracy of the SSAT fixture 1000 meets the requirements.

[0057] Magnet support column 800 is used to support the TF magnet, and cold screen support column 900 is used to support the cold screen sector. This improves the positional stability of the TF magnet and the cold screen sector, facilitating precise combination of the vacuum chamber sector, the cold screen sector, and the TF magnet.

[0058] like Figure 1 As shown, an installation method for an SSAT fixture 1000 for a tokamak according to an embodiment of the present invention includes the following steps:

[0059] S1. Rigid components 910 are pre-embedded in the ground;

[0060] The rigid component 910 mentioned here can be understood as a reinforced concrete casting (a reinforced concrete casting refers to a sturdy integral structural component made of steel bars as a skeleton and concrete through casting) or a precast concrete component, etc. Because the ground load in the area where the SSAT fixture 1000 is installed reaches several hundred tons, the pre-embedded rigid component 910 can enable the ground to meet the load-bearing requirements, so as to improve the structural stability of the SSAT fixture 1000 and enable the final installation accuracy of the SSAT fixture 1000 to meet the requirements.

[0061] In some embodiments, during the process of pre-embedding the rigid component 910 on the ground, a steel-concrete cast-in-place component can be fabricated first, or a steel-concrete cast-in-place component can be purchased directly. Subsequently, the steel-concrete cast-in-place component is measured and accepted. After the acceptance is completed, a trench can be dug on the ground, and the steel-concrete cast-in-place component is placed in the trench on the ground and filled with concrete to achieve the pre-embedding of the rigid component 910 on the ground.

[0062] S2. Install the first central column 100 and the guide rail assembly 400 on the rigid member 910. The guide rail assembly 400 is sleeved on the outer periphery of the first central column 100.

[0063] It should be noted that in the SSAT fixture 1000, the first center column 100 is mainly used to simulate the center of the tokamak to ensure that the vacuum chamber sector, cold screen sector, and TF magnet, after being assembled by the SSAT fixture 1000, are in accurate relative positions after entering the main unit hall; the guide rail assembly 400 is used to guide the rotating frame 300 during its movement, so that the rotating frame 300 can move in a predetermined direction. Since the rotating frame 300 is suitable for mounting the TF magnet and cold screen sector, the TF magnet and cold screen sector can move in a predetermined direction during the assembly process, ensuring the stability of the movement position. This allows the SSAT fixture 1000 to achieve precise assembly of the vacuum chamber sector, cold screen sector, and TF magnet.

[0064] Therefore, in this step, by installing the first center post 100 and the guide rail assembly 400 on the rigid member 910 and fitting the guide rail assembly 400 around the outer periphery of the first center post 100, the vacuum chamber sector, the cold screen sector and the TF magnet can be precisely combined using the SSAT fixture 1000.

[0065] Meanwhile, by mounting the first central column 100 and the guide rail assembly 400 on the rigid member 910, the rigid member 910 can support the first central column 100 and the guide rail assembly 400, thereby improving the positional stability of the first central column 100 and the guide rail assembly 400 and enhancing their working performance.

[0066] In some embodiments, such as Figure 5 As shown, the rigid member 910 may include multiple members. The first center column 100 and the guide rail assembly 400 are respectively mounted on independent rigid members 910. On the one hand, this avoids the rigid member 910 with the first center column 100 mounted on the rigid member 910 with the guide rail assembly 400 mounted on the same member, thus improving the positional stability of the rigid member 910. On the other hand, compared with setting a single rigid member 910, it can also reduce the area of ​​the rigid member 910, which is conducive to reducing the use cost of the rigid member 910, thereby reducing the manufacturing cost of the SSAT tooling 1000.

[0067] In some embodiments, the first center post 100 and the guide rail assembly 400 are both fixedly mounted on the rigid member 910 by bolts. This reduces the installation difficulty of the first center post 100 and the guide rail assembly 400, and also improves the positional stability of the first center post 100 and the guide rail assembly 400, thereby enhancing the working performance of the first center post 100 and the guide rail assembly 400.

[0068] S3. Install a first cantilever beam 510 on the top of the first central column 100, with one end of the first cantilever beam 510 fitted around the outer periphery of the first central column 100.

[0069] This can also be understood as installing a first cantilever beam 510 on the top outer periphery of the first central column 100. A schematic diagram of the first cantilever beam 510 after installation can be found here. Figure 7 or Figure 8 .

[0070] In some embodiments, one end of the first cantilever beam 510 is sleeved on the outer periphery of the first central column 100, and the other end of the first cantilever beam 510 is connected to the rotating frame 300. One end of the first cantilever beam 510 can rotate relative to the first central column 100. In this way, the first cantilever beam 510 can be driven to rotate relative to the first central column 100 during the movement of the rotating frame 300. At this time, the first cantilever beam 510 can be used to guide the movement of the rotating frame 300 to avoid the rotating frame 300 from deviating during the movement, thereby further improving the positional accuracy of the rotating frame 300.

[0071] In some embodiments, a support protrusion is provided on the outer periphery of one end of the first central column 100, and one end of the first cantilever beam 510 is sleeved on the outer periphery of the first central column 100 and part of the bottom of the first cantilever beam 510 is supported on the support protrusion to improve the positional stability of the first cantilever beam 510.

[0072] S4. A second center column 200 is installed on the top of the first center column 100. The second center column 200 is provided with a plurality of second cantilever beams 520 arranged at intervals along its axial direction.

[0073] In this step, by installing a second center column 200 on top of the first center column 100, the center of the tokamak can be simulated by the cooperation of the first center column 100 and the second center column 200, so as to ensure that the vacuum chamber sector, cold screen sector and TF magnet after being assembled by the SSAT tooling 1000 kit are in the correct relative positions after entering the host hall.

[0074] Meanwhile, by providing multiple second cantilever beams 520 arranged at intervals along their axial direction on the second central column 200, it is convenient to guide the movement of the rotating frame 300 using the second cantilever beams 520, so as to avoid the rotating frame 300 from shifting during the movement, and further improve the positional accuracy of the rotating frame 300.

[0075] In some embodiments, one end of the second cantilever beam 520 is sleeved on the outer periphery of the second central column 200 and can rotate relative to the second central column 200. The other end of the second cantilever beam 520 is connected to the rotating frame 300. In this way, the second cantilever beam 520 can be driven to rotate relative to the second central column 200 during the movement of the rotating frame 300, so as to guide the movement of the rotating frame 300 by the second cantilever beam 520 and avoid the rotating frame 300 from deviating during the movement.

[0076] In some embodiments, the second center column 200 is fixedly installed on the first center column 100 by bolts. This reduces the installation difficulty of the second center column 200 and improves the positional stability of the second center column 200, thereby enhancing the working performance of the second center column 200.

[0077] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0078] S5. Install the outer column assembly 600 on the side of the guide rail assembly 400 away from the first central column 100.

[0079] The above configuration facilitates the subsequent support of the hoisting mechanism by the outer column assembly 600 and the second central column 200. Since the hoisting mechanism is used to hoist at least the vacuum chamber sector, it can reduce the hoisting difficulty of the vacuum chamber sector and improve the positional stability of the vacuum chamber sector during the hoisting process. This makes it easier to use the SSAT fixture 1000 to achieve a precise combination of the vacuum chamber sector, the cold screen sector, and the TF magnet.

[0080] In some embodiments, combined with Figure 4 and Figure 5 As shown, the bottom of the outer column assembly 600 is provided with a rigid member 910 so that the ground on which the outer column assembly 600 is installed can meet the load-bearing requirements, thereby improving the structural stability of the outer column assembly 600 and thus improving the structural stability of the SSAT fixture 1000 to ensure the performance of the SSAT fixture 1000.

[0081] Optionally, the outer column assembly 600 is fixedly mounted on the rigid member 910 by bolts. This reduces the installation difficulty of the outer column assembly 600 and improves the positional stability of the outer column assembly 600, thereby enhancing the working performance of the outer column assembly 600.

[0082] S6. Install a connecting beam 700 between the second central column 200 and the outer column assembly 600.

[0083] A schematic diagram showing the connecting beam 700 after it has been installed can be found here. Figure 4 , Figure 7 or Figure 8 .

[0084] By installing the connecting beam 700, the relative positional stability of the second central column 200 and the outer column assembly 600 can be improved, thereby enhancing the structural stability of the SSAT fixture 1000 and ensuring that the structural accuracy of the SSAT fixture 1000 meets the requirements.

[0085] In some embodiments, the two opposite ends of the connecting beam 700 are fixedly connected to the second central column 200 and the outer column assembly 600, respectively, so as to improve the relative positional stability of the second central column 200 and the outer column assembly 600 by utilizing the connecting beam 700.

[0086] The fixed connection mentioned here can be understood as a bolt connection.

[0087] S7. Install magnet support columns 800 on opposite sides of the guide rail assembly 400;

[0088] In this step, the TF magnet is supported by the magnet support column 800, which improves the positional stability of the TF magnet and facilitates the precise combination of the vacuum chamber sector, the cold screen sector and the TF magnet.

[0089] In some embodiments, combined with Figure 4 and Figure 5 As shown, the bottom of the magnet support column 800 is provided with a rigid member 910 so that the ground on which the magnet support column 800 is installed can meet the load-bearing requirements, which facilitates the improvement of the structural stability of the magnet support column 800, thereby improving the structural stability of the SSAT fixture 1000 and ensuring the performance of the SSAT fixture 1000.

[0090] Optionally, the magnet support column 800 is fixedly installed on the rigid member 910 by bolts. This reduces the installation difficulty of the magnet support column 800 and improves the positional stability of the magnet support column 800, thereby enhancing the working performance of the magnet support column 800.

[0091] S8. Install a cold screen support column 900 on the side of the guide rail assembly 400 away from the first central column 100;

[0092] A schematic diagram showing the cold screen support column 900 after installation can be found here. Figure 8 .

[0093] In this step, the cold screen sector is supported by the cold screen support column 900, which improves the positional stability of the cold screen sector and facilitates the precise combination of the vacuum chamber sector, the cold screen sector and the TF magnet.

[0094] In some embodiments, combined with Figure 4 , Figure 5 and Figure 8 As shown, the bottom of the cold screen support column 900 is provided with a rigid component 910 so that the ground on which the cold screen support column 900 is installed can meet the load-bearing requirements, which facilitates the improvement of the structural stability of the cold screen support column 900, thereby improving the structural stability of the SSAT fixture 1000 and ensuring the performance of the SSAT fixture 1000.

[0095] Optionally, the cold screen support column 900 is fixedly installed on the rigid component 910 by bolts. This reduces the installation difficulty of the cold screen support column 900 and improves the positional stability of the cold screen support column 900, thereby enhancing the working performance of the cold screen support column 900.

[0096] S9. Install the rotating frame 300 on the guide rail assembly 400. The rotating frame 300 is connected to the cantilever beam assembly 500.

[0097] A schematic diagram of the rotating frame 300 after it has been installed can be found here. Figure 4 .

[0098] As can be seen from the above steps, the rotating frame 300 is mounted on the guide rail assembly 400 and connected to the cantilever beam assembly 500, so as to guide the movement of the rotating frame 300 by the cooperation of the guide rail assembly 400 and the cantilever beam assembly 500, effectively improving the positional accuracy of the rotating frame 300 during movement, and facilitating the precise combination of the vacuum chamber sector, the cold screen sector and the TF magnet by using the SSAT fixture 1000.

[0099] As can be seen from the above method, the installation method of the SSAT fixture 1000 for tokamak in this embodiment of the invention can ensure that the final installation accuracy of the SSAT fixture 1000 meets the requirements, thereby facilitating the correct assembly of the three components of vacuum chamber sector, cold screen sector and TF magnet using the SSAT fixture 1000, and improving the assembly accuracy of vacuum chamber sector, cold screen sector and TF magnet.

[0100] Understandably, compared to existing technologies, this application specifies the installation method of the SSAT fixture 1000 for tokamak, so that the final installation accuracy of the SSAT fixture 1000 can meet the requirements and improve the working performance of the SSAT fixture 1000.

[0101] In some embodiments, such as Figure 2 As shown, before mounting the first center post 100 and the guide rail assembly 400 on the rigid member 910, the following steps are also included:

[0102] S11. Adjust the flatness of rigid component 910;

[0103] In this step, the upper surface of the rigid member 910 can meet the installation requirements, so that the first center column 100 and the guide rail assembly 400 can be installed on the rigid member 910. While reducing the installation difficulty of the first center column 100 and the guide rail assembly 400, it can also ensure the positional accuracy of the first center column 100 and the guide rail assembly 400 after installation.

[0104] In some embodiments, the flatness of the rigid member 910 can be adjusted by grinding the upper surface of the rigid member 910.

[0105] S12. Install a pad 920 on the upper surface of the rigid member 910.

[0106] In this step, the overall height of the mating shim 920 and the rigid component 910 can be adjusted using the shim 920. Since the shim 920 is thinner than the rigid component 910, the machining error of the shim 920 is smaller. Adjusting the overall height of the mating shim 920 and the rigid component 910 by using the shim 920 helps to improve the accuracy of the overall height, so that the overall height of the mating shim 920 and the rigid component 910 meets the design requirements.

[0107] In some embodiments, the pad 920 can be fixedly connected to the rigid member 910 by bolts, which reduces the installation difficulty of the pad 920 and improves the positional stability of the pad 920, thereby enhancing the working performance of the pad 920.

[0108] In some embodiments, the pad 920 is a low-alloy high-strength structural steel plate. This ensures the structural strength of the pad 920, extends its service life, and enables the pad 920 to stably support the first central column 100 and the guide rail assembly 400.

[0109] In the specific example, the material of the pad 920 is Q355B, which means that the material of the pad 920 is a low-alloy high-strength structural steel with a yield strength of not less than 355 MPa and a quality grade of B.

[0110] In some embodiments, combined with Figure 4 and Figure 5 As shown, the guide rail assembly 400 includes a first guide rail 410 and a second guide rail 420. The first guide rail 410 is spaced out and sleeved on the outer periphery of the second guide rail 420. The first guide rail 410 and / or the second guide rail 420 include a plurality of guide segments 430 connected sequentially along their circumference. It should be noted that installing the rotating frame 300 on the guide rail assembly 400 means simultaneously connecting the rotating frame 300 to the first guide rail 410 and the second guide rail 420. This allows the first guide rail 410 and the second guide rail 420 to cooperate in guiding the movement of the rotating frame 300, thereby limiting unnecessary degrees of freedom of the rotating frame 300, ensuring that the rotating frame 300 can only move in a predetermined direction, improving the positional accuracy of the rotating frame 300, and providing stable torque balance.

[0111] Meanwhile, the first guide rail 410 and / or the second guide rail 420 including a plurality of guide segments 430 connected sequentially along its circumference means that the first guide rail 410 includes a plurality of guide segments 430, which are connected sequentially along the circumference of the first guide rail 410; or, the second guide rail 420 includes a plurality of guide segments 430, which are connected sequentially along the circumference of the second guide rail 420; or, both the first guide rail 410 and the second guide rail 420 include a plurality of guide segments 430, with the plurality of guide segments 430 of the first guide rail 410 connected sequentially along the circumference of the first guide rail 410, and the plurality of guide segments 430 of the second guide rail 420 connected sequentially along the circumference of the second guide rail 420.

[0112] With the above settings, the smallest unit can be set as guide segment 430 during the processing, transportation and installation of the first guide rail 410 and / or the second guide rail 420, so as to reduce the difficulty of processing, transportation and installation of the first guide rail 410 and / or the second guide rail 420.

[0113] In specific examples, such as Figure 5 As shown, both the first guide rail 410 and the second guide rail 420 include three guide segments 430 connected sequentially along their circumference.

[0114] It should be noted that since the guide rail assembly 400 includes a first guide rail 410 and a second guide rail 420, the guide rail assembly 400 mentioned below can be understood as the first guide rail 410 and the second guide rail 420.

[0115] In some embodiments, such as Figure 2 As shown, when installing the first center post 100 and the guide rail assembly 400 on the rigid member 910, the following steps are included:

[0116] S21. Adjust the concentricity of the guide rail assembly 400 and the first center column 100;

[0117] The concentricity adjustment of the guide rail assembly 400 and the first center post 100 mentioned here refers to adjusting the concentricity of the first guide rail 410 and the first center post 100, as well as adjusting the concentricity of the second guide rail 420 and the first center post 100.

[0118] In other words, during the installation of the guide rail assembly 400 and the first center post 100, it is necessary to adjust the concentricity of the first guide rail 410, the second guide rail 420 and the first center post 100 so that the concentricity of the guide rail assembly 400 and the first center post 100 meets the design requirements. This ensures that the relative positions of the first guide rail 410, the second guide rail 420 and the first center post 100 are accurate, so that the final installation accuracy of the SSAT fixture 1000 can meet the requirements. Furthermore, it can prevent the rotating frame 300 from jamming during the movement of the rotating frame 300, thus enabling the rotating frame 300 to perform smooth and precise arc movements.

[0119] In a specific example, when installing the first central column 100 and the guide rail assembly 400 on the rigid component 910, the first guide rail 410 and the second guide rail 420 can be installed sequentially after the first central column 100 is installed in place. During the installation of the first guide rail 410 and the second guide rail 420, the concentricity of the first guide rail 410, the second guide rail 420 and the first central column 100 can be adjusted so that the relative positions of the first guide rail 410, the second guide rail 420 and the first central column 100 are accurate.

[0120] Specifically, the axis of the first central column 100 can be used as a reference. Through measurement and adjustment, the distance (radius) from each point on the first guide rail 410 and the second guide rail 420 to the axis of the first central column 100 can be made equal, thereby achieving the purpose of adjusting the concentricity of the guide rail assembly 400 and the first central column 100.

[0121] S22. Adjust the flatness of a single guide segment 430 and the coplanarity of multiple guide segments 430;

[0122] In other words, after the concentricity of the guide rail assembly 400 and the first center post 100 is adjusted, that is, after the installation position of the guide rail assembly 400 is determined, the flatness of a single guide segment 430 and the coplanarity of multiple guide segments 430 are adjusted.

[0123] By adjusting the flatness of a single guide segment 430, the upper surface of the guide segment 430 can meet the design requirements, which in turn makes the upper surface of the guide rail assembly 400 meet the design requirements. This facilitates the subsequent installation of the rotating frame 300 on the guide rail assembly 400, reducing the installation difficulty of the rotating frame 300 while ensuring the positional accuracy of the rotating frame 300 after installation.

[0124] Meanwhile, by adjusting the coplanarity of multiple guide segments 430, the surfaces of multiple guide segments 430 can be made to be on the same height plane, further preventing the rotating frame 300 from getting stuck during movement, and enabling the rotating frame 300 to perform smooth and precise arc movements.

[0125] In a specific example, the flatness of the guide section 430 and the coplanarity of multiple guide sections 430 can be adjusted by grinding the upper surface of the guide section 430.

[0126] S23. Use the pressure block 930 to fix the guide rail assembly 400 to the rigid member 910;

[0127] This refers to the process where, after the flatness of a single guide segment 430 and the coplanarity of multiple guide segments 430 are adjusted, the guide rail assembly 400 is fixedly connected to the rigid member 910 using the pressure block 930, so as to fix the guide rail assembly 400, improve the positional stability of the guide rail assembly 400, and thus enhance the working performance of the guide rail assembly 400.

[0128] At the same time, by using the pressure block 930 to fix the guide rail assembly 400, the difficulty of fixing the guide rail assembly 400 can be reduced.

[0129] In some embodiments, one end of the pressure block 930 is bolted to the guide rail assembly 400, and the other end of the pressure block 930 is bolted to the rigid member 910, so as to fix the guide rail assembly 400 to the rigid member 910 using the pressure block 930.

[0130] In some embodiments, such as Figure 5 As shown, the pressure block 930 includes multiple pressure blocks 930, which are arranged at intervals along the circumference of the guide rail assembly 400 to fix the guide rail assembly 400 to the rigid member 910 by using the cooperation of multiple pressure blocks 930, thereby improving the connection strength between the guide rail assembly 400 and the rigid member 910 and improving the positional stability of the guide rail assembly 400.

[0131] S24. Install limiting members 940 at both circumferential ends of the guide rail assembly 400 (the specific installation positions of the limiting members 940 can be found in [reference]). Figure 5 The limiting member 940 is used to limit the range of movement of the rotating frame 300 to prevent the rotating frame 300 from moving out of the guide rail assembly 400.

[0132] In this step, the rotating frame 300 can be prevented from causing the cold screen sector and TF magnet to move out of the preset range, thus facilitating the correct assembly of the three components—vacuum chamber sector, cold screen sector, and TF magnet—using the SSAT fixture 1000.

[0133] In some implementations, the limiting member 940 is a limiting plate, which is located on the upper surface of the guide rail assembly 400 and protrudes from the upper surface of the guide rail assembly 400. The two ends of the limiting plate are respectively located on the radially opposite sides of the guide rail assembly 400 and are respectively fixedly connected to the rigid member 910, so as to limit the movement range of the rotating frame 300 by using the limiting member 940.

[0134] The fixed connection between the limiting plate and the rigid member 910 mentioned here can be a bolt connection.

[0135] In some embodiments, such as Figure 2 As shown, after the first center post 100 and the guide rail assembly 400 are installed on the rigid member 910, the following steps are also included:

[0136] S25. Install wear-resistant part 950 on the upper surface of guide rail assembly 400 (the specific installation location of wear-resistant part 950 can be found in [reference]). Figure 6 (To understand).

[0137] It should be noted that, since a rotating frame 300 is mounted on the guide rail assembly 400, a wear-resistant part 950 can be installed between the guide rail assembly 400 and the rotating frame 300 by installing a wear-resistant part 950 on the upper surface of the guide rail assembly 400. The wear-resistant part 950 can reduce the coefficient of friction, thereby reducing the friction between the guide rail assembly 400 and the rotating frame 300, improving the movement efficiency of the rotating frame 300, and also preventing the guide rail assembly 400 and the rotating frame 300 from wearing each other, thus extending the service life of the guide rail assembly 400 and the rotating frame 300.

[0138] In some embodiments, the wear-resistant part 950 can be fixedly installed on the upper surface of the guide rail assembly 400 by bolts, so as to realize the installation of the wear-resistant part 950 on the upper surface of the guide rail assembly 400, reduce the installation difficulty of the wear-resistant part 950 and improve the positional stability of the wear-resistant part 950, thereby ensuring the working performance of the wear-resistant part 950.

[0139] In some embodiments, the wear-resistant component 950 is a high-strength wear-resistant steel plate to improve its working performance.

[0140] In the specific example, the material of wear-resistant part 950 is NM400, which means that the material of wear-resistant part 950 is a wear-resistant steel plate with a Brinell hardness value of not less than 400HBW.

[0141] In some embodiments, the thickness of the wear-resistant part 950 ranges from 20mm to 30mm. A thinner wear-resistant part 950 will affect its performance; a thicker wear-resistant part 950 will increase its usage cost.

[0142] Based on this, this application sets the thickness range of the wear-resistant part 950 to 20mm~30mm, which can reduce the cost of using the wear-resistant part 950 while ensuring its working performance.

[0143] In specific examples, the thickness of wear-resistant part 950 is 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm or 30mm, etc.

[0144] In some embodiments, such as Figure 7 and Figure 8 As shown, the second central column 200 includes a first central column 210, a second central column 220, a third central column 230, a fourth central column 240, and a fifth central column 250. In other words, the second central column 200 is composed of multiple central column sections. Due to the relatively high overall height of the second central column 200, the above-mentioned design reduces the difficulty of processing, transporting, and installing it.

[0145] In the description of this invention, features defined with "first", "second", "third", "fourth" and "fifth" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or importance.

[0146] In some embodiments, such as Figure 2 As shown, when installing the second center post 200 on top of the first center post 100, the following steps are included:

[0147] S41. A second cantilever beam 520 is fitted onto one end of the central column 210 of the first section;

[0148] This step not only enables the installation of the second cantilever beam 520 on the second central column 200, but also reduces the difficulty of installing the second cantilever beam 520.

[0149] S42. Install the first central column 210 onto the top of the first central column 100 and control the second cantilever beam 520 to be set close to the first central column 100, and adjust the concentricity of the first central column 210 relative to the first central column 100 and its verticality relative to the ground.

[0150] This step ensures the accuracy of the position of the first central column 210.

[0151] S43. Install the second central column 220 on top of the first central column 210, and adjust the concentricity of the second central column 220 relative to the first central column 100 and its verticality relative to the ground.

[0152] This step ensures the accuracy of the position of the second section center column 220.

[0153] S44. Install the third central column 230 on top of the second central column 220, and adjust the concentricity of the third central column 230 relative to the first central column 100 and its verticality relative to the ground.

[0154] This step ensures the accuracy of the position of the central column 230 in the third section.

[0155] S45. A second cantilever beam 520 is fitted onto the end of the third section central column 230 that is away from the second section central column 220.

[0156] This step not only enables the installation of multiple second cantilever beams 520 on the second central column 200, but also reduces the difficulty of installing the second cantilever beams 520.

[0157] S46. Install a second cantilever beam 520 at one end of the fourth central column 240, install the fourth central column 240 to the top of the third central column 230 and control the second cantilever beam 520 to be close to the third central column 230, and adjust the concentricity of the fourth central column 240 relative to the first central column 100 and its verticality relative to the ground.

[0158] In this step, not only can multiple second cantilever beams 520 be set on the second central column 200, reducing the difficulty of setting the second cantilever beams 520, but the positional accuracy of the fourth central column 240 can also be guaranteed.

[0159] S47. Install the fifth central column 250 on top of the fourth central column 240, and adjust the concentricity of the fifth central column 250 relative to the first central column 100 and its verticality relative to the ground.

[0160] This step ensures the accuracy of the position of the fifth section's central column 250.

[0161] In summary, each section of the second center column 200 requires concentricity and verticality measurements during installation. Only after the concentricity and verticality requirements are met can the next section be installed, in order to ensure the overall positional accuracy of the second center column 200.

[0162] In some embodiments, when installing the second cantilever beam 520, it is necessary to pre-tighten the second cantilever beam 520 to ensure the positional accuracy of the second cantilever beam 520.

[0163] Optionally, adjacent central columns can be fixedly connected by bolts, which reduces the installation difficulty of the second central column 200 and improves the structural stability of the second central column 200, thereby enhancing its working performance.

[0164] In some embodiments, such as Figure 4 , Figure 7 and Figure 8As shown, the outer column assembly 600 includes a first column 610 and a second column 620. The outer column assembly 600 and the first central column 100 are arranged along a first direction, and the first column 610 and the second column 620 are arranged along a second direction, which intersects with the first direction. The cooperation of the first column 610 and the second column 620 helps to ensure the structural strength of the outer column assembly 600 itself, improves the working performance of the outer column assembly 600, and allows the outer column assembly 600 to be disassembled into multiple structural components, reducing the difficulty of processing, transportation, and installation of the outer column assembly 600.

[0165] In some embodiments, such as Figure 3 As shown, when installing the outer column assembly 600 on the side of the guide rail assembly 400 away from the first central column 100, the following steps are included:

[0166] S51. Measure and adjust the concentricity of the first column 610 and the second column 620 relative to the first central column 100 and their verticality relative to the ground.

[0167] This step ensures the positional accuracy of the first column 610 and the second column 620, which helps improve the structural accuracy of the SSAT fixture 1000 and ensures that the final installation accuracy of the SSAT fixture 1000 meets the requirements.

[0168] S52, Fix the first column 610 and the second column 620;

[0169] This step ensures the positional stability of the first column 610 and the second column 620.

[0170] In some embodiments, combined with Figure 4 and Figure 5 As shown, the bottom of the first column 610 and the second column 620 are both provided with rigid components 910 so that the ground on which the first column 610 and the second column 620 are installed can meet the load-bearing requirements, which facilitates the improvement of the structural stability of the first column 610 and the second column 620, thereby improving the structural stability of the SSAT fixture 1000 and ensuring the performance of the SSAT fixture 1000.

[0171] Optionally, the first column 610 and the second column 620 are both fixedly installed on the corresponding rigid member 910 by bolts. This reduces the installation difficulty of the first column 610 and the second column 620, and also improves the positional stability of the first column 610 and the second column 620, thereby improving the working performance of the first column 610 and the second column 620.

[0172] S53. A support beam 630 is installed between the first column 610 and the second column 620, and the two ends of the support beam 630 are respectively connected to the first column 610 and the second column 620.

[0173] In this step, the support beam 630 can be used to support the first column 610 and the second column 620, so that the relative position of the first column 610 and the second column 620 is stable, which facilitates the improvement of the overall structural stability of the outer column assembly 600 and the improvement of the working performance of the outer column assembly 600.

[0174] The two ends of the supporting beam 630 can be connected to the first column 610 and the second column 620 respectively by bolts.

[0175] S54. Install a radial beam support 640 on the upper surface of the supporting beam 630. The radial beam support 640 is used to support the hoisting mechanism (the specific installation position of the radial beam support 640 can be found in [reference]). Figure 9 );

[0176] In this step, the first column 610, the second column 620 and the supporting beam 630 can be used to support the radial beam support 640, thereby improving the positional stability of the radial beam support 640. Since the radial beam support 640 is used to support the hoisting mechanism, the positional stability of the hoisting mechanism is improved, so as to ensure the working performance of the hoisting mechanism.

[0177] Meanwhile, by installing the radial beam support 640 onto the upper surface of the support beam 630, the installation difficulty of the radial beam support 640 can be reduced.

[0178] In some embodiments, the radial beam support 640 can be bolted to the upper surface of the support beam 630 to further reduce the installation difficulty of the radial beam support 640.

[0179] In some embodiments, one end of the lifting mechanism is connected to the radial beam support 640, and the other end is connected to the second central column 200. The lifting mechanism is used at least for lifting vacuum chamber sectors. This reduces the difficulty of lifting vacuum chamber sectors, thereby facilitating the precise combination of vacuum chamber sectors, cold screen sectors, and TF magnets using the SSAT fixture 1000.

[0180] S55. An auxiliary boom 650 is installed on the side of the support beam 630 facing the first central column 100. The auxiliary boom 650 is used to lift the TF magnet.

[0181] This step reduces the difficulty of hoisting the TF magnet and facilitates the precise combination of the vacuum chamber sector, cold screen sector, and TF magnet using the SSAT 1000 fixture.

[0182] In summary, when installing the first column 610 and the second column 620, it is also necessary to measure the concentricity and verticality. Only after the measurement meets the requirements can the support beam 630 and the radial beam support 640 be installed. Finally, the auxiliary boom 650 is installed to enable the installation of the outer column assembly 600 on the side of the guide rail assembly 400 away from the first central column 100, thus ensuring the installation accuracy of the outer column assembly 600.

[0183] In some embodiments, such as Figure 9 As shown, both the first column 610 and the second column 620 include multiple column sections 660, which are stacked sequentially along the axial direction of the first central column 100. In other words, both the first column 610 and the second column 620 are composed of multiple column sections 660. Since the overall height of both the first column 610 and the second column 620 is relatively high, this arrangement reduces the difficulty of processing, transporting, and installing the first column 610 and the second column 620.

[0184] It should be noted that during the specific installation of the first column 610 and the second column 620, the bottommost column 660 is installed first. During the installation of the bottommost column 660, it is necessary to measure and adjust the concentricity of the bottommost column 660 relative to the first central column 100 and its verticality relative to the ground. Then, the bottommost column 660 is fixedly installed on the corresponding rigid component 910. After the bottommost column 660 is installed in place, the other columns 660 are installed in sequence. During the installation of each column 660, the concentricity and verticality to the ground need to be measured. Only after the requirements for concentricity and verticality to the ground are met can the next column 660 be installed to ensure the overall positional accuracy of the first column 610 and the second column 620.

[0185] In some embodiments, such as Figure 9 As shown, both the first column 610 and the second column 620 include three columns 660. A support beam 630 is installed between the second column 660 of the first column 610 and the second column 660 of the second column 620 to ensure that the support beam 630 has a certain height. This ensures that the radial beam support 640 and the auxiliary boom 650 installed on the support beam 630 have a certain height, thus ensuring the working performance of the radial beam support 640 and the auxiliary boom 650.

[0186] In some embodiments, such as Figure 4 As shown, the rotating frame 300 includes a rotating platform 310, a support frame 320, a first adjustment unit 330, and a second adjustment unit 340. The rotating platform 310 is mounted on the guide rail assembly 400. This allows the rotating frame 300 to be mounted on the guide rail assembly 400, reducing the difficulty of installing the rotating frame 300.

[0187] Optionally, such as Figure 4 As shown, the support frame 320 and the first adjustment unit 330 are spaced apart and mounted on the rotating platform 310. The support frame 320 is suitable for mounting the TF magnet and the cold screen sector, and the support frame 320 is connected to the cantilever beam assembly 500. The guide rail assembly 400 and the cantilever beam assembly 500 cooperate to guide the movement of the support frame 320. This enables the guidance of the movement of the TF magnet and the cold screen sector, effectively improving the positional accuracy of the TF magnet and the cold screen sector during movement, and facilitating the precise combination of the vacuum chamber sector, the cold screen sector, and the TF magnet using the SSAT fixture 1000.

[0188] Optionally, such as Figure 4 As shown, the second adjustment unit 340 is mounted on the support frame 320. Both the first adjustment unit 330 and the second adjustment unit 340 are used to adjust the positions of the TF magnet and the cold screen sector on the support frame 320. This ensures that the positions of the TF magnet and the cold screen sector on the support frame 320 are accurate, thereby enabling the precise combination of the vacuum chamber sector, the cold screen sector, and the TF magnet using the SSAT fixture 1000.

[0189] In some embodiments, the first adjustment unit 330 and the second adjustment unit 340 work together to achieve adjustment of the TF magnet and the cold screen sector in six degrees of freedom, thereby maximizing the positional accuracy of the TF magnet and the cold screen sector.

[0190] In some embodiments, such as Figure 3 As shown, the steps for mounting the rotating frame 300 on the guide rail assembly 400 include:

[0191] S91. The rotary platform 310 is movably connected to the guide rail assembly 400;

[0192] In this step, it is convenient to connect the rotating frame 300 to the guide rail assembly 400, and it is also convenient to fix the support frame 320 and the first adjustment unit 330 in the future, so that the rotating frame 300 as a whole can move along the extension direction of the guide rail assembly 400.

[0193] S92. The support frame 320 and the first adjustment unit 330 are spaced apart on the rotating platform 310 and the support frame 320 is connected to the cantilever beam assembly 500.

[0194] In this step, the rotating frame 300 and the cantilever beam assembly 500 can be connected to each other so that the rotating frame 300 can be guided to move by the guide rail assembly 400 and the cantilever beam assembly 500.

[0195] Meanwhile, by placing the support frame 320 and the first adjustment unit 330 on the rotating platform 310 at intervals, the rotating platform 310 can support the support frame 320 and the first adjustment unit 330, while also allowing the first adjustment unit 330 to be placed close to the support frame 320, so as to adjust the position of the TF magnet and the cold screen sector on the support frame 320.

[0196] It should be noted that the support frame 320 connecting the cantilever beam assembly 500 mentioned here can be the support frame 320 connecting the first cantilever beam 510, or the support frame 320 connecting the second cantilever beam 520, or the support frame 320 connecting both the first cantilever beam 510 and the second cantilever beam 520. No specific restrictions are made here.

[0197] The connection between the support frame 320 and the cantilever beam assembly 500, as well as the connection between the support frame 320, the first adjustment unit 330, and the rotating platform 310, can all be made by bolting.

[0198] It should also be noted that during the installation of the support frame 320, the flatness and verticality of the support frame 320 also need to be measured. After the flatness and verticality measurements are completed, the support frame 320 is then connected to the cantilever beam assembly 500.

[0199] S93. The second adjustment unit 340 is installed on the support frame 320.

[0200] In this step, the second adjustment unit 340 can be positioned close to the support frame 320 to facilitate the adjustment of the position of the TF magnet and the cold screen sector on the support frame 320 using the second adjustment unit 340.

[0201] The second adjustment unit 340 can be fixedly connected to the support frame 320 by bolts.

[0202] In some embodiments, such as Figure 3 As shown, after the rotating frame 300 is mounted on the guide rail assembly 400, the following is also included:

[0203] S94. Install a control component, which is used to control the operation of the first adjustment unit 330 and the second adjustment unit 340.

[0204] In this step, the control difficulty of the first adjustment unit 330 and the second adjustment unit 340 can be reduced, so that the first adjustment unit 330 and the second adjustment unit 340 can be used in conjunction to adjust the six degrees of freedom of the TF magnet and the cold screen sector, thereby maximizing the positional accuracy of the TF magnet and the cold screen sector.

[0205] In some embodiments, the control components include a control cabinet, a hydraulic cylinder, and a control valve, all of which are mounted on a support frame 320 to facilitate the use of the control cabinet, hydraulic cylinder, and control valve to control the operation of the first adjustment unit 330 and the second adjustment unit 340.

[0206] S95, Install pedestrian platform 970 (the specific installation location of pedestrian platform 970 can be found in [reference]). Figure 4 );

[0207] It should be noted that, due to the large size of the SSAT fixture 1000, the pedestrian platform 970 is mainly used for workers to walk on, so as to facilitate the installation and maintenance of the SSAT fixture 1000.

[0208] In some embodiments, the pedestrian platform 970 includes a straight elevator, a ladder, etc.

[0209] It should also be noted that, Figure 4 The image only shows the pedestrian platform 970 installed on the connecting beam 700. However, in a specific example, the pedestrian platform 970 can be installed at any position on the SSAT fixture 1000, such as on the first column 610 and the second column 620, or on the support frame 320 of the rotating frame 300. No specific restrictions are made here.

[0210] S96. Debug the SSAT fixture 1000.

[0211] This step effectively ensures that the installation accuracy of the SSAT fixture 1000 after installation meets the requirements, thus facilitating the correct assembly of the vacuum chamber sector, cold shield sector, and TF magnet using the SSAT fixture 1000.

[0212] It should be noted that the commissioning of SSAT fixture 1000 includes, but is not limited to, visual inspection, no-load commissioning, static load test, dynamic load test and stability test, in order to effectively ensure the working performance of SSAT fixture 1000. The installation of SSAT fixture 1000 is only completed after all tests are completed.

[0213] The visual inspection should include at least the following:

[0214] First, check the connection points inside the SSAT tooling 1000 for any missing or uninstalled bolts;

[0215] Second, check all structural components (such as the first center column 100, the second center column 200, the rotating frame 300, and the guide rail assembly 400) for collisions, scratches, paint peeling, or obvious deformation caused during installation.

[0216] Third, check the surface of the piston rods of all hydraulic cylinders for dents, rust, etc.

[0217] Fourth, confirm that the locking blocks of the first adjustment unit 330 and the second adjustment unit 340 are in the released state and there is no jamming;

[0218] Fifth, check that the pedestrian platform 970 is securely installed and the protective cage is intact;

[0219] Sixth, check whether any paint damage caused during installation has been repaired as required to prevent rust.

[0220] No-load commissioning mainly involves starting the hydraulic pump, checking whether the motor rotation is correct, checking for any abnormal noises during operation, debugging the movement of the first adjustment unit 330 and the second adjustment unit 340 in various directions, and conducting operational tests on the control cabinet.

[0221] The static load test mainly involves hoisting the vacuum chamber sector and the cold shield sector onto the SSAT fixture 1000 and moving them into place. Then, the TF magnet is hoisted onto the SSAT fixture 1000 and kept under static load for 30 minutes. All major load-bearing structures (first column 610, second column 620, support beam 630, and support frame 320, etc.) are checked for abnormal deformation, cracks, or abnormal noises. The test also checks for visible cracks in key welds, loose bolt connections, relative slippage, and cracks between the rigid component 910 and the ground.

[0222] The dynamic load test mainly checks whether the movement of the cantilever beam assembly 500 is smooth, whether there is any jamming, abnormal noise or crawling, and whether the contact between the rotating platform 310 and the guide rail assembly 400 is uniform and good during the rotation of the TF magnet.

[0223] The stability test is conducted after the vacuum chamber sector, cold shield sector, and TF magnet are installed, rotated, and the SSAT fixture 1000 dynamic load test is passed. The main process is to place the vacuum chamber sector, cold shield sector, and TF magnet on the SSAT fixture 1000 for 24 hours after the assembly is completed and observe the changes (e.g., using a laser tracker to check whether the position of the TF magnet has deviated).

[0224] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0225] Other configurations of the mounting method for the SSAT tooling 1000 for a tokamak according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0226] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0227] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for installing an SSAT tooling for a tokamak, characterized in that, The SSAT fixture is used to combine the vacuum chamber sector, the cold shield sector, and the TF magnet. The SSAT fixture includes a first central column (100), a second central column (200), a rotating frame (300), a guide rail assembly (400), a cantilever beam assembly (500), an outer column assembly (600), a connecting beam (700), a magnet support column (800), and a cold shield support column (900). The cantilever beam assembly (500) includes a first cantilever beam (510) and a second cantilever beam (520). The installation method of the SSAT fixture includes the following steps: Rigid components are pre-embedded in the ground (910); The first central column (100) and the guide rail assembly (400) are mounted on the rigid member (910), and the guide rail assembly (400) is sleeved on the outer periphery of the first central column (100); The first cantilever beam (510) is installed on the top of the first central column (100), and one end of the first cantilever beam (510) is sleeved on the outer periphery of the first central column (100); A second center column (200) is installed on top of the first center column (100), and a plurality of second cantilever beams (520) are provided on the second center column (200) at intervals along its axial direction. The outer column assembly (600) is installed on the side of the guide rail assembly (400) away from the first central column (100), and the outer column assembly (600) is mounted on the rigid member (910); The connecting beam (700) is installed between the second central column (200) and the outer column assembly (600); The magnet support columns (800) are installed on opposite sides of the guide rail assembly (400). The cold screen support column (900) is installed on the side of the guide rail assembly (400) away from the first central column (100). The rotating frame (300) is mounted on the guide rail assembly (400), and the rotating frame (300) is connected to the cantilever beam assembly (500).

2. The installation method of the SSAT tooling for tokamak according to claim 1, characterized in that, Before mounting the first center post (100) and guide rail assembly (400) on the rigid member (910), the following steps are also included: Adjust the flatness of the rigid component (910); A pad (920) is installed on the upper surface of the rigid member (910).

3. The installation method of the SSAT tooling for a tokamak according to claim 2, characterized in that, The pad (920) is a low-alloy high-strength structural steel plate.

4. The installation method of the SSAT fixture for tokamak according to claim 1, characterized in that, The guide rail assembly (400) includes a first guide rail (410) and a second guide rail (420). The first guide rail (410) is spaced apart and sleeved on the outer periphery of the second guide rail (420). The first guide rail (410) and / or the second guide rail (420) include a plurality of guide segments (430) connected sequentially along their circumference. When installing the first center post (100) and the guide rail assembly (400) on the rigid member (910), the following steps are included: Adjust the concentricity of the guide rail assembly (400) and the first center column (100); Adjust the flatness of a single guide segment (430) and the coplanarity of multiple guide segments (430); The guide rail assembly (400) is fixedly connected to the rigid member (910) using a pressure block (930). Limiting members (940) are installed at both circumferential ends of the guide rail assembly (400). The limiting members (940) are used to limit the range of movement of the rotating frame (300) to prevent the rotating frame (300) from moving out of the guide rail assembly (400).

5. The installation method of the SSAT tooling for a tokamak according to claim 1, characterized in that, After mounting the first center post (100) and the guide rail assembly (400) on the rigid member (910), the following steps are also included: A wear-resistant component (950) is mounted on the upper surface of the guide rail assembly (400).

6. The method for installing the SSAT fixture for a tokamak according to claim 5, characterized in that, The wear-resistant part (950) is a high-strength wear-resistant steel plate; and / or, the thickness of the wear-resistant part (950) is in the range of 20mm to 30mm.

7. The method for installing the SSAT fixture for a tokamak according to claim 1, characterized in that, The second central column (200) includes a first central column section (210), a second central column section (220), a third central column section (230), a fourth central column section (240), and a fifth central column section (250); when installing the second central column (200) on top of the first central column (100), the following steps are included: The second cantilever beam (520) is fitted onto one end of the first central column (210); Install the first section of the central column (210) onto the top of the first central column (100) and control the second cantilever beam (520) to be set close to the first central column (100), and adjust the concentricity of the first section of the central column (210) relative to the first central column (100) and its verticality relative to the ground. Install the second central column (220) on top of the first central column (210), and adjust the concentricity of the second central column (220) relative to the first central column (100) and its verticality relative to the ground. Install the third central column (230) on top of the second central column (220), and adjust the concentricity of the third central column (230) relative to the first central column (100) and its verticality relative to the ground. The second cantilever beam (520) is fitted onto the end of the third central column (230) away from the second central column (220); The second cantilever beam (520) is fitted onto one end of the fourth central column (240), the fourth central column (240) is installed on the top of the third central column (230), and the second cantilever beam (520) is positioned close to the third central column (230). The concentricity of the fourth central column (240) relative to the first central column (100) and its verticality relative to the ground are adjusted. A fifth central column (250) is installed on top of the fourth central column (240), and the concentricity of the fifth central column (250) relative to the first central column (100) and its verticality relative to the ground are adjusted.

8. The method for installing the SSAT fixture for a tokamak according to claim 1, characterized in that, The outer column assembly (600) includes a first column (610) and a second column (620). The outer column assembly (600) and the first central column (100) are arranged along a first direction, and the first column (610) and the second column (620) are arranged along a second direction, which intersects with the first direction. When the outer column assembly (600) is installed on the side of the guide rail assembly (400) away from the first central column (100), the following steps are included: Measure and adjust the concentricity of the first column (610) and the second column (620) relative to the first central column (100) and their verticality relative to the ground; Fix the first column (610) and the second column (620); A support beam (630) is installed between the first column (610) and the second column (620), with the two ends of the support beam (630) connected to the first column (610) and the second column (620) respectively. A radial beam support (640) is installed on the upper surface of the supporting beam (630), the radial beam support (640) being used to support the hoisting mechanism; An auxiliary boom (650) is installed on the side of the support beam (630) facing the first central column (100), and the auxiliary boom (650) is used to lift the TF magnet.

9. The method for installing the SSAT fixture for a tokamak according to claim 8, characterized in that, Both the first column (610) and the second column (620) include multiple column sections (660), which are stacked sequentially along the axial direction of the first central column (100).

10. The method for installing the SSAT tooling for a tokamak according to claim 1, characterized in that, The rotating frame (300) includes a rotating platform (310), a support frame (320), a first adjustment unit (330), and a second adjustment unit (340). The rotating platform (310) is mounted on the guide rail assembly (400). The support frame (320) and the first adjustment unit (330) are spaced apart on the rotating platform (310). The support frame (320) is adapted to mount the TF magnet and the cold screen sector, and the support frame (320) is connected to the cantilever beam assembly (500). The guide rail assembly (400) and the cantilever beam assembly (500) cooperate to guide the movement of the support frame (320). The second adjustment unit (340) is mounted on the support frame (320). Both the first adjustment unit (330) and the second adjustment unit (340) are used to adjust the position of the TF magnet and the cold screen sector on the support frame (320). When installing the rotating frame (300) on the guide rail assembly (400), the following steps are included: The rotating platform (310) is movably connected to the guide rail assembly (400); The support frame (320) and the first adjustment unit (330) are spaced apart on the rotating platform (310), and the support frame (320) is connected to the cantilever beam assembly (500). The second adjustment unit (340) is mounted on the support frame (320).

11. The method for installing the SSAT fixture for a tokamak according to claim 10, characterized in that, After mounting the rotating frame (300) on the guide rail assembly (400), the following steps are also included: Install a control component, which is used to control the operation of the first adjustment unit (330) and the second adjustment unit (340); Install the pedestrian platform (970); The SSAT fixture was debugged.

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