A fixture for fusion reactor sector components

Abstract

The application discloses a fixing device for a fusion reactor sector component, which comprises an inner jaw beam mechanism, an outer jaw beam mechanism, a hoop constraint mechanism and a fixing mechanism, the inner jaw beam mechanism is closely attached to the inner wall of a vacuum chamber, and the outer jaw beam mechanism is closely attached to a lower window; the outer jaw beam mechanism is connected with the inner jaw beam mechanism through a fastening screw mechanism; the hoop constraint mechanism is arranged on both sides of the outer jaw beam mechanism and is connected with the outer jaw beam mechanism and a hoop magnet respectively; the fixing mechanism is further provided with a pull rod mechanism, and the pull rod mechanism is hingedly connected with the outer jaw beam mechanism; the application realizes the tensioning and limiting in the radial direction through the pull rod mechanism and the fastening screw mechanism, the hoop constraint mechanism realizes the limiting in the hoop direction, the pull rod mechanism and the outer jaw beam mechanism are hingedly connected, the outer jaw beam mechanism has a certain adjustment allowance in the vertical direction, the movement in the vertical direction due to the elastic deformation of the vacuum chamber and the hoop magnet is allowed, the structural integrity of the sector component is ensured, and the installation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of nuclear engineering equipment technology, and specifically to a fixing device for fusion reactor sector components. Background Technology

[0002] A fusion device consists of tens of thousands of parts, and the sector component is one of the core components, a crucial link in the construction of the fusion device, and its assembly process is extremely complex. A fusion reactor sector component includes one vacuum chamber, one set of cold shields, and two toroidal magnets;

[0003] Since the toroidal magnet is mounted on the outside of the vacuum chamber, the center of gravity of the vacuum chamber and the sector components shifts during hoisting, causing the toroidal magnet to shift radially relative to the vacuum chamber. Furthermore, during sector lifting, the tilting of the sector components may cause circumferential movement between the toroidal magnet and the vacuum chamber. Secondly, the elastic deformation of the vacuum chamber and the toroidal magnet during sector component lifting will also cause relative vertical movement. To ensure the assembly quality of the sector components, radial and directional movements need to be restricted, while vertical movement cannot be restricted. Existing technologies typically use limiting blocks between the toroidal magnet and the vacuum chamber to restrict their relative movement; however, these blocks are difficult to install and disassemble, have poor limiting effect, and can easily cause permanent damage to the vacuum chamber and magnet during hoisting, thus affecting the overall installation progress and assembly quality of the equipment. Summary of the Invention

[0004] The main objective of this application is to provide a fixing device for fusion reactor sector components, aiming to overcome the shortcomings of low installation efficiency in the prior art.

[0005] This application achieves the above objectives through the following technical solutions:

[0006] A mounting device for a fusion reactor sector component, comprising:

[0007] An internal jaw beam mechanism, wherein the internal jaw beam mechanism is tightly fitted to the inner wall of the vacuum chamber;

[0008] An external jaw beam mechanism is provided, along the radial direction of the sector component, and the external jaw beam mechanism is in close contact with the lower window of the sector component;

[0009] A fastening screw mechanism, one end of which is connected to the inner jaw beam mechanism, and the other end of which passes through the lower window and is connected to the outer jaw beam mechanism;

[0010] A circumferential constraint mechanism is provided, along the radial direction of the sector component, and is positioned on both sides of the external jaw beam mechanism, respectively, and is tightly fitted and connected to the external jaw beam mechanism; each of the circumferential constraint mechanisms is connected to a circumferential magnet on the same side.

[0011] A fixing mechanism is connected to the circumferential magnet in the sector component. A tie rod mechanism is also hinged to the fixing mechanism, and the tie rod mechanism is hinged to the external jaw beam mechanism.

[0012] Optionally, the outer jaw beam mechanism is also provided with an inner frame, and the top and sides of the inner frame are provided with adaptive support modules that fit tightly against the inner wall of the lower window.

[0013] Optionally, the internal jaw beam mechanism includes an internal jaw beam, and both ends of the internal jaw beam are rotatably connected to adjusting pads along the length direction of the internal jaw beam. The adjusting pads are provided with adaptive support modules that fit tightly against the inner wall of the vacuum chamber.

[0014] Optionally, the external jaw beam mechanism includes an external jaw beam, both ends of which are provided with radial limiting pads and circumferential limiting pads adapted to the lower window; the top of the external jaw beam is provided with an adaptive support module that fits tightly against the lower window.

[0015] Optionally, the fastening screw mechanism includes at least two sets of screw mechanisms, each screw mechanism including several double-ended screws, and each double-ended screw is arranged coaxially; any two adjacent double-ended screws are connected by a connecting sleeve thread; the double-ended screws at both ends are respectively connected to the inner jaw beam and the outer jaw beam.

[0016] Optionally, the circumferential constraint mechanism includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate being connected by a plurality of double-ended screws; both the first clamping plate and the second clamping plate are provided with an adaptive support module that is in close contact with the circumferential magnet; the outer jaw beam is provided with an adaptive support module that is in close contact with the second clamping plate.

[0017] Optionally, the adaptive support module includes a radial spherical sliding bearing, one end of which is connected to an external mounting structure, and the other end of which is connected to a support pad for fitting the external structure.

[0018] Optionally, the fixing mechanism includes a fixing beam, both ends of which are provided with fixing plates for connecting circumferential magnets; the fixing beam is also provided with a fork-shaped connecting rod; the fork-shaped connecting rod is provided with a sensing shaft adapted to the pull rod mechanism.

[0019] Optionally, the tie rod mechanism includes several connecting screws, all of which are arranged coaxially; any two adjacent connecting screws are connected by connecting sleeve threads, and each connecting sleeve has a locking nut at both ends; each connecting screw at both ends is provided with a hinge arm.

[0020] Optionally, each arm is provided with a spherical hinge, and the outer jaw beam is provided with a pin. The pin is rotatably connected to the spherical hinge on the same side, and the sensing shaft is rotatably connected to the other spherical hinge.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] This application includes an internal jaw beam mechanism and an external jaw beam mechanism, wherein the internal jaw beam is tightly fitted to the inner wall of the vacuum chamber along the radial direction of the sector component, and the external jaw beam mechanism is tightly fitted to the lower window of the sector component; the external jaw beam mechanism is also provided with a fastening screw mechanism, the other end of which passes through the lower window and is connected to the internal jaw beam mechanism; the fixing device further includes a circumferential constraint mechanism and a fixing mechanism, along the radial direction of the sector component, the circumferential constraint mechanisms are respectively placed on both sides of the external jaw beam mechanism and are tightly fitted and connected to the external jaw beam mechanism respectively; each of the circumferential constraint mechanisms is respectively connected to a circumferential magnet on the same side; the fixing mechanism is connected to the circumferential magnet in the sector component, and the fixing mechanism is also provided with a pull rod mechanism, which is hinged to the external jaw beam mechanism.

[0023] The invention consists of two parts, an inner and an outer part. The inner part is composed of an inner jaw beam mechanism, a fastening screw mechanism, an internal frame mechanism, and an outer jaw device mechanism, and is fixed inside the vacuum chamber. That is, the inner jaw beam mechanism is tightly fitted to the inner wall of the vacuum chamber, and the outer jaw beam mechanism is tightly fitted to the lower window of the sector component. The inner jaw beam and the outer jaw beam are tightened by the fastening screw mechanism. After tightening, the inner jaw beam mechanism and the outer jaw beam mechanism clamp the vacuum chamber from both ends in the radial direction, thereby realizing the fixed connection between the inner part and the vacuum chamber.

[0024] Meanwhile, since the fixing mechanism is directly and tightly connected to the circumferential magnet and connected to the external jaw beam through a tie rod mechanism, and the tie rod mechanism is hinged to the external jaw beam, the fixing mechanism can limit the integral component formed by the internal jaw beam mechanism and the external jaw beam mechanism in the radial direction, thereby forcibly connecting all components into a whole in the radial direction.

[0025] While the circumferential constraint mechanism is connected to the circumferential magnets on the same side, it also abuts tightly against the sidewalls of the outer jaw beam, thereby restricting the circumferential movement between the circumferential magnets and the vacuum chamber.

[0026] The linkage mechanism connects the inner and outer parts together. The two ends of the linkage mechanism are spherical bearing structures, which ensure that all degrees of freedom except radial degree of freedom can move relatively vertically at both ends of the linkage mechanism. This allows for vertical movement due to the elastic deformation of the vacuum chamber and the circumferential magnet itself, ensuring the structural stability of the sector component during assembly, avoiding rework caused by changes in the position of different components, and improving the installation efficiency of the sector component.

[0027] Secondly, compared with the prior art, the internal jaw beam mechanism of this application is located in the vacuum chamber, the external jaw beam mechanism is attached to the lower window end face, the fixing mechanism is directly connected to the ring magnet, and the various components are connected to each other through the fastening screw mechanism and the pull rod mechanism. The above-mentioned components are attached to the outer or inner wall of the fan-shaped component and are no longer set between the components. Therefore, the disassembly difficulty of the entire device is low, which is conducive to improving the disassembly efficiency and installation efficiency of the equipment. Attached Figure Description

[0028] Figure 1 A schematic diagram of a fixing device for a fusion reactor sector component provided in an embodiment of this application;

[0029] Figure 2 An exploded view of a fixing device for a fusion reactor sector component provided in an embodiment of this application;

[0030] Figure 3 A cross-sectional view of a fixing device for a fusion reactor sector component provided in an embodiment of this application;

[0031] Figure 4 A diagram illustrating the working state of a fixing device for a fusion reactor sector component, provided in an embodiment of this application.

[0032] Figure 5 This is a schematic diagram of the internal jaw beam mechanism;

[0033] Figure 6 This is a schematic diagram of the external jaw beam mechanism;

[0034] Figure 7 This is a schematic diagram of the circumferential constraint mechanism;

[0035] Figure 8 This is a structural diagram of the fixing mechanism;

[0036] Figure 9 This is a schematic diagram of the segment arm structure;

[0037] Reference numerals: 1-Internal jaw beam mechanism, 2-External jaw beam mechanism, 3-Fasting screw mechanism, 4-Circumferential constraint mechanism, 5-Fixing mechanism, 6-Tie rod mechanism, 7-Inner frame, 8-Adaptive support module, 9-Double-ended screw, 10-Connecting sleeve, 11-Spherical hinge, 101-Internal jaw beam, 102-Adjusting pad, 201-External jaw beam, 202-Radial limiting pad, 203-Circumferential limiting pad, 204-Pin, 401-First clamping plate, 402-Second clamping plate, 501-Fixing beam, 502-Fixing plate, 503-Fork connecting rod, 504-Induction shaft, 601-Connecting screw, 602-Locking nut, 603-Segment arm, 801-Radial spherical sliding bearing, 802-Supporting pad, 110-Vacuum chamber, 111-Lower window, 112-Circumferential magnet.

[0038] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "robot coordinate system and / or m" as an example, it includes the robot coordinate system solution, the m solution, or a solution where both the robot coordinate system and m are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] Implementation method 1:

[0044] Reference Figures 1 to 9This embodiment, as an optional embodiment of this application, discloses a fixing device for a fusion reactor sector component, including an inner jaw beam 101 mechanism 1 and an outer jaw beam 201 mechanism 2. The inner jaw beam 101 mechanism 1 includes an inner jaw beam 101. Along the length direction of the inner jaw beam 101, a rotating shaft is provided at both ends of the inner jaw beam 101, and an adjusting pad 102 is rotatably connected to the two rotating shafts.

[0045] Meanwhile, both of the aforementioned adjusting pads 102 are provided with L-shaped support seats, and the support seats are provided with adaptive support modules 8, which are arranged in the vertical direction.

[0046] The adaptive support module 8 includes a radial spherical sliding bearing 801. One end of the radial spherical sliding bearing 801 is provided with a connecting rod, which is connected in series with the support base and then fixed by a nut. At the same time, a support washer 802 is also connected to the radial spherical sliding bearing 801.

[0047] A large number of mounting seats are provided on the inner wall of the vacuum chamber 110 of the sector component to enable the installation of the equipment within the vacuum chamber 110; the structure of the aforementioned mounting seats is regular.

[0048] During installation, two mounting seats are selected in the vacuum chamber 110 as mounting attachment points for the internal jaw beam 101 mechanism 1. The adjusting pad 102 is tightly fitted to the side of the corresponding mounting seat in the radial direction. During the docking process, the installation angle is adjusted by rotating the adjusting pad 102 to ensure that it is tightly fitted to the mounting seat. At the same time, in the vertical direction, the support pads 802 of each adaptive support module 8 are tightly fitted to the top surface of the corresponding mounting seat.

[0049] Since the support shim 802 is connected to the radial spherical sliding bearing 801, the support shim 802 can be adjusted at any angle within a conical region, thereby adapting to different end face structures of the mounting base and ensuring its tightness of fit.

[0050] Furthermore, the external jaw beam 201 mechanism 2 includes an external jaw beam 201, which includes a horizontal section and a connecting section. The horizontal section and the connecting section are spliced ​​together in a T-shaped structure, and the connecting section is connected to an inner frame beam coaxial with it by several connecting bolts.

[0051] Along the axial direction of the inner frame beam, adaptive support modules 8 are provided on the top and both sides of the inner frame beam; at least two adaptive support modules 8 are provided on the top of the connecting section of the outer jaw beam 201, and circumferential point pads are also provided on both sides of the connecting section.

[0052] The structure of each of the adaptive support modules 8 is exactly the same as that of the adaptive support module 8 disposed on the adjustment pad 102;

[0053] Several radial limiting pads 202 are also provided on the side where the horizontal section and the connecting section meet. Each radial limiting pad 202 is divided into two groups. The two groups of radial limiting pads 202 are placed on both sides of the connecting section and connected to the horizontal section respectively.

[0054] In use, the inner frame beam and the connecting section are inserted into the lower window at the same time. Since the support pad 802 can be adjusted at any angle within the conical range, no matter how the cross-sectional shape of the lower window changes, the support pad 802 of each of the adaptive support modules 8 can fit against each inner surface of the lower window respectively, thereby ensuring connection stability and reliability.

[0055] The reversing limiting pad is in contact with the inner wall of the lower window;

[0056] The horizontal section of the external jaw beam 201 is located outside the lower window. Along the radial direction of the fan-shaped component, the radial limiting pads 202 disposed on the side of the external jaw beam 201 are tightly fitted to the end face of the lower window.

[0057] Through the various adaptive support modules 8, radial limiting pads 202 and circumferential limiting pads 203, several stable connection points can be constructed between the inner wall and end face of the lower window to ensure the stability and reliability of the connection.

[0058] Furthermore, a fastening screw mechanism 3 is provided between the external jaw beam 201 mechanism 2 and the internal jaw beam 101 mechanism 1. The fastening screw mechanism 3 includes at least two sets of screw mechanisms. Each set of screw mechanisms has the same structure and includes several double-ended screws 9. Each double-ended screw 9 is coaxially spliced ​​together in sequence. A connecting sleeve 10 is provided between any two adjacent double-ended screws 9. The connecting sleeve 10 is connected to the two double-ended screws 9 respectively by threads with opposite directions.

[0059] A number of connecting holes are provided on both the inner jaw beam 101 and the outer jaw beam 201. The number of connecting holes is the same as the number of sets of screw mechanisms. One end of each screw mechanism is inserted into the corresponding connecting hole on the outer jaw beam 201 and fixed by a nut. The other end passes through the lower window and is inserted into each connecting hole on the inner jaw beam 101 and fixed by a nut.

[0060] This application cleverly connects the inner jaw beam 101 and the outer jaw beam 201 into a whole through the cooperation of the fastening screw mechanism 3 and the lower window. At the same time, the distance between two adjacent double-headed screws 9 can be adjusted by rotating the connecting sleeve 10, thereby adjusting the tension between the outer jaw beam 201 and the inner jaw beam 101 and adjusting the tightness of the connection to meet different fastening requirements. Moreover, its adjustment method is simple and reliable.

[0061] Furthermore, the fixing device also includes a ring constraint mechanism and a fixing mechanism 5, wherein the ring constraint mechanism 4 includes two identical constraint mechanisms, which are respectively placed on both sides of the external jaw beam 201 mechanism 2 along the radial direction of the sector component.

[0062] The two sets of constraint mechanisms have the same structure, both including a first clamping plate 401 and a second clamping plate 402. The first clamping plate 401 and the second clamping plate 402 are connected by several double-ended screws 9, and both ends of the double-ended screws 9 are provided with fastening nuts.

[0063] Both the first clamping plate 401 and the second clamping plate 402 are provided with adaptive support modules 8, and each of the adaptive support modules 8 is arranged in the vertical direction; along the length direction of the external jaw beam 201, adaptive support modules 8 are provided at both ends of its horizontal section.

[0064] During installation, the adaptive support modules 8 on the first clamping plate 401 and the second clamping plate 402 are tightly attached to the bottom surface of the circumferential magnet, and the first clamping plate 401 and the second clamping plate 402 are tightened by the double-headed screw 9 and tightly attached to the circumferential magnet 112 in the radial direction.

[0065] The side of the second clamping plate 402 facing the external jaw beam 201 is in close contact with the adaptive support module 8 on the same side of the external jaw beam 201;

[0066] Since the internal jaw beam 101 mechanism 1 and the external jaw beam 201 mechanism 2 are connected to the vacuum chamber 110 and the lower window 111, and the circumferential constraint mechanism 4 is connected to the circumferential magnet 112 and is also closely fitted to the external jaw beam 201 through the adaptive support module 8, a stable limiting support structure is formed between the vacuum chamber 110 and the circumferential magnet 112, thereby connecting the two into one, avoiding misalignment between the vacuum chamber 110 and the circumferential magnet 112 along the circumferential direction;

[0067] Furthermore, the fixing mechanism 5 includes a fixing beam 501, and fixing plates 502 are provided at both ends of the fixing beam 501 along the length direction of the fixing beam 501. The fixing plates 502 are connected to the two circumferential magnets 112 by bolts, thereby installing the entire fixing beam 501 onto the circumferential magnets 112.

[0068] Meanwhile, a fork lug connecting rod 503 is also provided in the middle of the fixed beam 501. One end of the fork lug connecting rod 503 is fixedly connected to the fixed beam 501 by a nut. A sensing shaft 504 is also provided on the fork lug connecting rod 503.

[0069] A tie rod mechanism 6 is also provided between the fixed beam 501 and the outer jaw beam 201. The tie rod mechanism 6 has several connecting screws 601, and each connecting screw 601 is arranged coaxially. A connecting sleeve 10 is provided between any two adjacent connecting screws 601. The connecting sleeve 10 is connected to the adjacent connecting screws 601 by connecting threads with opposite directions. Each end of each connecting sleeve 10 is provided with a locking nut 602. Each connecting screw 601 at both ends is provided with a hinge arm 603. Each hinge arm 603 is provided with a spherical hinge 11.

[0070] The connecting section of the external jaw beam 201 is also provided with a pin 204, which is rotatably connected to the spherical hinge 11 on the corresponding segment arm 603. The other segment arm 603 is connected to the sensing shaft 504 through the spherical hinge 11 on it. A stress sensor is also provided between the sensing shaft 504 and the fixed beam 501.

[0071] In use, the fixed beam is connected to the circumferential magnet 112, and the pull rod mechanism connects the outer jaw beam to the fixed beam along the radial direction of the fan-shaped component, thereby connecting the vacuum chamber 110, the lower window 111 and the circumferential magnet 112 into a whole in the radial direction, further improving the radial limiting function.

[0072] The internal jaw beam mechanism is placed in the vacuum chamber, and its adjustment pad and adaptive support module abut against the mounting base on the inner wall of the vacuum chamber. The lower window of the sector component of the external jaw beam mechanism is tightly fitted, and the internal jaw beam and the external jaw beam are tightened by a fastening screw mechanism. After tightening, the internal jaw beam mechanism and the external jaw beam mechanism clamp the vacuum chamber from both ends in the radial direction, thereby achieving radial limiting.

[0073] The invention consists of two parts, an inner and an outer part. The inner part is composed of an inner jaw beam mechanism, a fastening screw mechanism, an internal frame mechanism, and an outer jaw device mechanism, and is fixed inside the vacuum chamber. That is, the inner jaw beam mechanism is tightly fitted to the inner wall of the vacuum chamber, and the outer jaw beam mechanism is tightly fitted to the lower window of the sector component. The inner jaw beam and the outer jaw beam are tightened by the fastening screw mechanism. After tightening, the inner jaw beam mechanism and the outer jaw beam mechanism clamp the vacuum chamber from both ends in the radial direction, thereby realizing the fixed connection between the inner part and the vacuum chamber.

[0074] Meanwhile, since the fixing mechanism is directly and tightly connected to the circumferential magnet and connected to the external jaw beam through a tie rod mechanism, and the tie rod mechanism is hinged to the external jaw beam, the fixing mechanism can limit the integral component formed by the internal jaw beam mechanism and the external jaw beam mechanism in the radial direction, thereby forcibly connecting all components into a whole in the radial direction.

[0075] While the circumferential constraint mechanism is connected to the circumferential magnets on the same side, it also abuts tightly against the sidewalls of the outer jaw beam, thereby restricting the circumferential movement between the circumferential magnets and the vacuum chamber.

[0076] The linkage mechanism connects the inner and outer parts together. The two ends of the linkage mechanism are spherical bearing structures, which ensure that all degrees of freedom except radial degree of freedom can move relatively vertically at both ends of the linkage mechanism. This allows for vertical movement due to the elastic deformation of the vacuum chamber and the circumferential magnet itself, ensuring the structural stability of the sector component during assembly, avoiding rework caused by changes in the position of different components, and improving the installation efficiency of the sector component.

[0077] Secondly, compared with the prior art, the internal jaw beam mechanism of this application is located in the vacuum chamber, the external jaw beam mechanism is attached to the lower window end face, the fixing mechanism is directly connected to the ring magnet, and the various components are connected to each other through the fastening screw mechanism and the pull rod mechanism. The above-mentioned components are attached to the outer or inner wall of the fan-shaped component and are no longer set between the components. Therefore, the disassembly difficulty of the entire device is low, which is conducive to improving the disassembly efficiency and installation efficiency of the equipment.

[0078] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fixing device for a fusion reactor sector component, characterized in that, include: An internal jaw beam mechanism (1) is tightly fitted to the inner wall of the vacuum chamber; The external jaw beam mechanism (2) is in close contact with the lower window of the sector component along the radial direction of the sector component; A fastening screw mechanism (3) is provided, one end of which is connected to the inner jaw beam mechanism (1), and the other end of which passes through the lower window and is connected to the outer jaw beam mechanism (2). The circumferential constraint mechanism (4) is located on both sides of the external jaw beam mechanism (2) along the radial direction of the sector component, and is tightly connected to the external jaw beam mechanism (2); each of the circumferential constraint mechanisms (4) is connected to the circumferential magnet on the same side. A fixing mechanism (5) is connected to the circumferential magnet in the fan-shaped component. A pull rod mechanism (6) is also hinged to the fixing mechanism (5). The pull rod mechanism (6) is hinged to the external jaw beam mechanism (2).

2. The fixing device for a fusion reactor sector component according to claim 1, characterized in that, The outer jaw beam mechanism (2) is also provided with an inner frame (7), and the inner frame (7) is provided with an adaptive support module (8) that fits tightly against the inner wall of the lower window.

3. A fixing device for a fusion reactor sector component according to claim 1, characterized in that, The internal jaw beam mechanism (1) includes an internal jaw beam (101). Along the length of the internal jaw beam (101), both ends of the internal jaw beam (101) are rotatably connected to an adjusting pad (102). An adaptive support module (8) that fits tightly against the inner wall of the vacuum chamber is provided on the adjusting pad (102).

4. A fixing device for a fusion reactor sector component according to claim 3, characterized in that, The external jaw beam mechanism (2) includes an external jaw beam (201), both ends of which are provided with radial limiting pads (202) and circumferential limiting pads (203) adapted to the lower window; the top of the external jaw beam (201) is provided with an adaptive support module (8) that fits tightly to the lower window.

5. A fixing device for a fusion reactor sector component according to claim 4, characterized in that, The fastening screw mechanism (3) includes at least two sets of screw mechanisms, each screw mechanism including several double-ended screws (9), and each double-ended screw (9) is arranged coaxially; any two adjacent double-ended screws (9) are connected by a connecting sleeve (10) threaded connection; the double-ended screws (9) at both ends are connected to the inner jaw beam (101) and the outer jaw beam (201) respectively.

6. A fixing device for a fusion reactor sector component according to claim 4, characterized in that, The circumferential constraint mechanism (4) includes a first clamping plate (401) and a second clamping plate (402), the first clamping plate (401) and the second clamping plate (402) are connected by a plurality of double-ended screws (9); both the first clamping plate (401) and the second clamping plate (402) are provided with an adaptive support module (8) that is in close contact with the circumferential magnet; the outer jaw beam (201) is provided with an adaptive support module (8) that is in close contact with the second clamping plate (402).

7. A fixing device for a fusion reactor sector component according to any one of claims 2, 3, 4 or 6, characterized in that, The adaptive support module (8) includes a radial spherical sliding bearing (801), one end of which is connected to an external mounting structure, and the other end of which is connected to a support pad (802) for fitting the external structure.

8. A fixing device for a fusion reactor sector component according to claim 4, characterized in that, The fixing mechanism (5) includes a fixing beam (501), and both ends of the fixing beam (501) are provided with fixing plates (502) for connecting circumferential magnets; the fixing beam (501) is also provided with a fork-ear connecting rod (503); the fork-ear connecting rod (503) is provided with a sensing shaft (504) adapted to the pull rod mechanism (6).

9. A fixing device for a fusion reactor sector component according to claim 8, characterized in that, The pull rod mechanism (6) includes a plurality of connecting screws (601), each of which is coaxially arranged; any two adjacent connecting screws (601) are connected by connecting sleeves (10) through threads, and each connecting sleeve (10) is provided with a locking nut (602) at both ends; and each connecting screw (601) at both ends is provided with a hinge (603).

10. A fixing device for a fusion reactor sector component according to claim 9, characterized in that, Each of the arm segments (603) is provided with a spherical hinge (11), and the outer jaw beam (201) is provided with a pin (204). The pin (204) is rotatably connected to the spherical hinge (11) on the same side, and the sensing shaft (504) is rotatably connected to another spherical hinge (11).

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