Fixing device of nuclear fusion preassembled assembly

Abstract

The invention relates to the field of nuclear fusion, and discloses a fixing device for a nuclear fusion preassembled assembly, and the fixing device comprises a magnet connecting assembly which comprises a first beam body and a magnet connecting part, the first beam body extends in a first direction, and the magnet connecting part is arranged on the first beam body; the vacuum chamber connecting assembly and the magnet connecting assembly are spaced in the second direction, the vacuum chamber connecting assembly comprises a second beam body and a vacuum chamber connecting part, the second beam body extends in the first direction, and the vacuum chamber connecting part is arranged on the second beam body; the beam body connecting assembly is arranged at the two ends of the second beam body in the first direction, is connected with the first beam body and comprises a first connecting piece, a second connecting piece and an elastic energy storage piece, the first connecting piece is movably connected with the second connecting piece and is detachably connected with the first beam body, and the second connecting piece is detachably connected with the second beam body; one end of the elastic energy storage piece is movably connected with the first connecting piece, and the other end is movably connected with the second connecting piece. The gap between the magnet and the vacuum chamber can be restrained, and the position precision between the magnet and the vacuum chamber is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of nuclear fusion technology, in particular to a fixing device for a nuclear fusion preassembled component. Background Art

[0002] During the construction of a tokamak nuclear fusion device, the entire assembly is cut and divided along the circumference to facilitate manufacturing and final assembly. Currently, the entire system is divided into eight sectors, each with a corresponding cold shield and toroidal field magnets. The vacuum chamber, cold shield, and toroidal field magnets corresponding to each sector are then assembled and assembled before being brought into the main engine hall for ring closing.

[0003] During the pre-assembly of the vacuum chamber, cold shield, and toroidal field magnet in the external pre-assembly hall, problems with the assembly of each sector can also be detected. After pre-assembly and qualified measurement and testing, the pre-assembled components of the vacuum chamber, cold shield, and toroidal field magnet are hoisted together and placed in the mainframe hall for vacuum chamber ring closure. The hoisting of the vacuum chamber, cold shield, and toroidal field magnet is heavy, and the precise dimensional control requirements of the vacuum chamber, cold shield, and toroidal field magnet are crucial. Therefore, ensuring the precise relative positioning of the vacuum chamber, cold shield, and toroidal field magnet during the hoisting process to prevent damage to the three components has become a pressing issue. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a device for securing a preassembled nuclear fusion assembly. The device can ensure high relative positional accuracy between the vacuum chamber and the magnet, thereby preventing damage from collision during installation.

[0005] According to an embodiment of the present invention, a fixing device for a nuclear fusion pre-assembly is used to fix the relative positions of a magnet and a vacuum chamber of a nuclear fusion device. The fixing device for the nuclear fusion pre-assembly includes: a magnet connection assembly, including a first beam and a magnet connection portion, the first beam extending along a first direction, and the magnet connection portion being provided on the first beam; a vacuum chamber connection assembly, spaced apart from the magnet connection assembly along a second direction, and including a second beam and a vacuum chamber connection portion, the second beam extending along the first direction, and the vacuum chamber connection portion being provided on the second beam, wherein the second direction is perpendicular to the first direction; a beam connection assembly, provided at both ends of the second beam in the first direction and connecting the first beam, and including a first connecting member, a second connecting member and an elastic energy storage member, the first connecting member being movably connected to the second connecting member and being detachably connected to the first beam, the second connecting member being detachably connected to the second beam, one end of the elastic energy storage member being movably connected to the first connecting member, and the other end being movably connected to the second connecting member.

[0006] According to the fixing device of the nuclear fusion pre-assembled assembly of the embodiment of the present invention, a rigid structure can be formed by the magnet connection assembly, the vacuum chamber connection assembly and the beam connection assembly, and the gap between the magnet and the vacuum chamber is constrained to ensure a high position accuracy between the magnet and the vacuum chamber, and avoid collision and damage to each other during the lifting process. The elastic energy storage component can absorb the impact load during the suspension and movement at a smaller amplitude, which is beneficial to improving the stability of the suspension and movement of the magnet and the vacuum chamber. Moreover, the beam connection assembly has a certain degree of freedom, which is conducive to better adapting the connection between the magnet connection assembly and the magnet, and the connection between the vacuum chamber connection assembly and the vacuum chamber, which can reduce the difficulty of installation.

[0007] In some embodiments of the present invention, the number of the magnet connecting parts is two along the first direction, and the magnet connecting parts include a first support beam and a magnet fastener, the first support beam extends along a third direction, the third direction, the second direction and the first direction are perpendicular to each other, the magnet fastener is provided on the first support beam, and multiple magnet fasteners are provided along the third direction.

[0008] In some embodiments of the present invention, both ends of the first support beam in the third direction are arranged to protrude relative to the first beam body.

[0009] In some embodiments of the present invention, two vacuum chamber connecting parts are provided along the first direction, and the vacuum chamber connecting part includes a second support beam and a vacuum chamber fastener. The second support beam extends along a third direction, and the third direction, the second direction and the first direction are perpendicular to each other. The vacuum chamber fastener is provided on the second support beam and is provided in plurality along the third direction.

[0010] In some embodiments of the present invention, the vacuum chamber fastener includes a base, an adjustment block, a joint shaft, an adapter, and a connector. The base is connected to the second support beam, the adjustment block is adjustably arranged on the base, the joint shaft is adjustably arranged on the adjustment block, the adapter is hinged to the joint shaft, and the connector is arranged on the adapter.

[0011] In some embodiments of the present invention, the adjustment block is positionally adjustable along the second direction and rotationally adjustable around the first direction relative to the base; the joint axis is retractable along a direction perpendicular to the adjustment block relative to the adjustment block; and the adapter is rotationally adjustable around the first direction relative to the joint axis.

[0012] In some embodiments of the present invention, the first connecting member is bent relative to the first beam body toward a side away from the center of the fixing device of the nuclear fusion pre-assembled component, and the second connecting member is bent relative to the second beam body toward a side away from the center of the fixing device of the nuclear fusion pre-assembled component, and is hingedly connected to the first connecting member around a third direction, and the third direction, the second direction and the first direction are perpendicular to each other; one end of the elastic energy storage member is hingedly connected to the first connecting member around the third direction, and the other end is hingedly connected to the second connecting member around the third direction.

[0013] In some embodiments of the present invention, a plane perpendicular to the first direction is made, the first connecting member and the second connecting member are arranged at an angle to the second direction in the extension direction of the orthographic projection of the plane, and the orthographic projection of the elastic energy storage member extends along the extension direction.

[0014] In some embodiments of the present invention, the fixing device of the nuclear fusion pre-assembly includes a middle preload assembly, and the middle preload assembly includes a support frame and an adjustable connecting member. The support frame is connected to the middle position of the second beam body, and the adjustable connecting member is adjustable in length along the second direction, and one end is hinged to the support frame, and the other end is hinged to the first beam body.

[0015] In some embodiments of the present invention, the middle preload assembly further includes a force detection member, which is provided at a force-bearing position between the adjustable connecting member and the second beam body, or the force detection member is provided at a force-bearing position between the adjustable connecting member and the first beam body.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 This is a schematic diagram of the use of a fixing device for a nuclear fusion pre-assembled assembly in conjunction with a magnet and a vacuum chamber provided in some embodiments of the present invention; Figure 2 is a schematic diagram of the three-dimensional structure of a fixing device for a nuclear fusion preassembled component provided by some embodiments of the present invention; Figure 3 is a top view of a fixing device for a nuclear fusion preassembled component provided by some embodiments of the present invention; Figure 4 is a side view of a nuclear fusion pre-assembled assembly provided by some embodiments of the present invention; Figure 5 is a schematic diagram of the three-dimensional structure of a vacuum chamber fastener provided by some embodiments of the present invention; Figure 6 is a top view of a middle preload assembly provided by some embodiments of the present invention; Figure 7 is a schematic diagram of the internal structure of an adjustable connector provided in some embodiments of the present invention; Figure 8 is a schematic structural diagram of an elastic energy storage element provided by some embodiments of the present invention; Figure 9 Schematic diagram of the internal structure of the elastic energy storage element provided in some embodiments of the present invention.

[0018] Reference numerals: 100. Fixing device for nuclear fusion pre-assembled components; 10. Magnet connection assembly; 11. First beam; 12. Magnet connection portion; 121. First support beam; 122. Magnet fastener; 20. Vacuum chamber connection components; 21. Second beam; 22. Vacuum chamber connection portion; 221. Second support beam; 222. Vacuum chamber fastener; 2201. Base; 2201a. Adjustment hole; 2202. Adjustment block; 2203. Joint shaft; 2204. Adapter; 2205. Connector; 22051. Bottom plate; 22052. Columnar member; 2206. Adjustment bolt; 2207. Threaded fastener; 30. Beam connection assembly; 31. First connecting member; 32. Second connecting member; 33. Elastic energy storage member; 331. First spring shaft; 331a. First limit ring; 331b. Second limit ring; 332. Spring; 333. Pressing plate; 334. Spacer; 335. Fitting flange; 336. Limiting flange; 337. Second spring shaft; 33a. Limiting space; 40. Middle preload assembly; 41. Support frame; 42. Adjustable connector; 421. Threaded sleeve; 422. Screw; 423. Spherical bearing; 43. Articulated lug; 200, magnet; 300, vacuum chamber; a. First extension line; b. Second extension line. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0022] In the description of the present invention, unless otherwise specified, "plurality" means two or more. In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] The fixing device 100 of the nuclear fusion pre-assembled component of the embodiment of the present invention is used to fix the relative positions of the magnet 200 and the vacuum chamber 300 of the nuclear fusion device. After the vacuum chamber 300, the cold shield and the magnet 200 are assembled as a whole, the whole needs to be hoisted into the main engine hall. During the hoisting process, there is a certain gap between the vacuum chamber 300 and the magnet 200. Since the cold shield is fixed on the vacuum chamber 300, it is only necessary to fix the relative positions of the magnet 200 and the vacuum chamber 300 during the assembly process. The fixing device 100 of the nuclear fusion pre-assembled component of the present invention can fix the vacuum chamber 300 and the magnet 200 so that the gap between the vacuum chamber 300 and the magnet 200 will not disappear, and collisions can be avoided, thereby ensuring the reliability of the vacuum chamber 300 and the magnet 200 during suspension and movement.

[0024] Reference below Figures 1-9 , describing a fixing device 100 for a nuclear fusion preassembled component according to an embodiment of the present invention.

[0025] like Figure 1 and Figure 2 As shown, a fixing device 100 for a nuclear fusion pre-assembled assembly according to an embodiment of the present invention includes a magnet connection assembly 10, a vacuum chamber connection assembly 20, and a beam connection assembly 30. The magnet connection assembly 10 includes a first beam 11 and a magnet connection portion 12. The first beam 11 extends along a first direction, and the magnet connection portion 12 is provided on the first beam 11. The vacuum chamber connection assembly 20 is spaced apart from the magnet connection assembly 10 along a second direction and includes a second beam 21 and a vacuum chamber connection portion 22. The second beam 21 extends along the first direction, and the vacuum chamber connection portion 22 is provided on the second beam 21. The second direction is perpendicular to the first direction. The beam connection assembly 30 is arranged at both ends of the first direction of the second beam body 21 and connected to the first beam body 11, and includes a first connection member 31, a second connection member 32 and an elastic energy storage member 33. The first connection member 31 is movably connected to the second connection member 32 and is detachably connected to the first beam body 11. The second connection member 32 is detachably connected to the second beam body 21. One end of the elastic energy storage member 33 is movably connected to the first connection member 31, and the other end is movably connected to the second connection member 32.

[0026] In the above technical solution, the first beam 11 and the second beam 21 may be beam structures, and may be, but are not limited to, square steel structures, I-beam structures, etc. The first beam 11 and the second beam 21 may be straight beams, or curved or arc-shaped beams. When the first beam 11 and the second beam 21 are curved or arc-shaped beams, the first beam 11 and the second beam 21 extend substantially along the first direction.

[0027] The magnet connection portion 12 may refer to a structure fixedly connected to the magnet 200, and one or more of these may be provided on the first beam 11. The vacuum chamber connection portion 22 may refer to a structure fixedly connected to the vacuum chamber 300, and one or more of these may be provided on the second beam 21. The magnet connection portion 12 and the vacuum chamber connection portion 22 may be, but are not limited to, a bolt connection structure, a pin connection structure, a snap-on connection structure, or the like. The structures of the magnet connection portion 12 and the vacuum chamber connection portion 22 may be the same or different.

[0028] The first direction and the second direction may refer to two directions perpendicular to each other. Figure 2 , the first direction may be the left-right direction, and the second direction may be the front-back direction.

[0029] The first connecting member 31 and the second connecting member 32 may refer to components that play a connecting role, and may be, but not limited to, a plate structure, a beam structure, a column structure, etc. Figure 2 , the first connecting member 31 and the second connecting member 32 can both be cross-beam structures. The movable connection direction of the first connecting member 31 and the second connecting member 32 can be, but not limited to, hinged connection, ball joint connection, etc. The detachable connection between the first connecting member 31 and the first beam body 11, and the detachable connection between the second connecting member 32 and the second beam body 21 can be, but not limited to, bolt connection, clamping, riveting, etc. Optionally, refer to Figure 2 The first connecting member 31 and the first beam body 11 can be connected by bolts, and the second connecting member 32 and the second beam body 21 can also be connected by bolts.

[0030] The elastic energy storage member 33 may be a structure or component capable of elastically compressing and storing energy. Alternatively, the elastic energy storage member 33 may be a spring structure. The elastic contraction displacement of the elastic energy storage member 33 is relatively small and may be smaller than the gap between the magnet 200 and the vacuum chamber 300.

[0031] In the fixing device 100 of the nuclear fusion pre-assembled component of the above structure, the magnet connecting portion 12 can be connected to the magnet 200, for example, the magnet connecting portion 12 is fixedly connected to the coil box outside the magnet. The vacuum chamber connecting portion 22 can be connected to the vacuum chamber 300, for example, the vacuum chamber connecting portion 22 is connected to the hole inside the vacuum chamber 300. Then, the beam connecting assembly 30 is connected to the first beam 11 and the second beam 21. Since the first connecting member 31 is movably connected to the second connecting member 32, there is a good degree of freedom between the first connecting member 31 and the second connecting member 32, which is convenient for connecting the first beam 11 and the second beam 21, and can also reduce the weight of a single component and reduce the difficulty of installation. The elastic energy storage member 33 connects the first connecting member 31 and the second connecting member 32, and can also improve the overall rigidity of the beam connecting assembly 30, thereby improving the overall rigidity of the fixing device 100 of the nuclear fusion pre-assembled component. Moreover, during the suspension and movement process, since the first connecting member 31 and the second connecting member 32 are movably connected, the elastic energy storage member 33 is also movably connected to the first connecting member 31 and the second connecting member 32. Therefore, the elastic energy storage member 33 can absorb the impact load and effectively suppress the lifting vibration to ensure the safety of the magnet 200 and the vacuum chamber 300.

[0032] According to the fixing device 100 of the nuclear fusion pre-assembled assembly of the embodiment of the present invention, a rigid structure can be formed by the magnet connection assembly 10, the vacuum chamber connection assembly 20 and the beam connection assembly 30, and the gap between the magnet 200 and the vacuum chamber 300 is constrained to ensure that there is a high position accuracy between the magnet 200 and the vacuum chamber 300, and to avoid collision and damage to each other during the lifting process. The elastic energy storage component 33 can absorb the impact load during the suspension and movement process at a smaller amplitude, which is beneficial to improving the stability of the suspension and movement of the magnet 200 and the vacuum chamber 300. Moreover, the beam connection assembly 30 has a certain degree of freedom, which is conducive to better adapting to the connection between the magnet connection assembly 10 and the magnet 200, and the connection between the vacuum chamber connection assembly 20 and the vacuum chamber 300, which can reduce the difficulty of installation.

[0033] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the magnet connecting part 12 is set to two along the first direction, and the magnet connecting part 12 includes a first support beam 121 and a magnet fastener 122. The first support beam 121 extends along the third direction. The third direction, the second direction and the first direction are perpendicular to each other. The magnet fastener 122 is provided on the first support beam 121, and multiple magnet fasteners 122 are provided along the third direction.

[0034] Alternatively, the magnet connection portions 12 may be provided at both ends of the first beam 11 in the first direction. Alternatively, the two magnet connection portions 12 may be spaced a certain distance from both ends of the first beam 11 in the first direction, and may simply be spaced apart along the first direction. It is understood that providing two magnet connection portions 12 increases the number of connection locations with the magnet 200 and improves the reliability of securing the magnet 200.

[0035] The first support beam 121 may be, but is not limited to, a plate structure, a tube structure, or a columnar structure, and the first support beam 121 may be a hollow structure or a solid structure. Alternatively, the first support beam 121 may be a square steel. Alternatively, the first support beam 121 may also be an I-beam. As an example, the third direction may refer to Figure 2 The first support beam 121 extends along the third direction, that is, the first support beam 121 and the first beam body 11 are vertically connected, so that the first support beam 121 and the first beam body 11 can be connected to form a T-shaped structure or a cross-shaped structure, which can improve the overall structural rigidity and enhance the overall support stability and reliability of the fixing device 100 for the nuclear fusion pre-assembled component.

[0036] The magnetic fastener 122 may be, but is not limited to, a bolt, a stud, a pin, a snap-on block, or the like. Figure 2 As shown, the magnetic fasteners 122 are bolt groups, and are arranged in two along the third direction on the first support beam 121. Each bolt group includes two rows spaced apart along the first direction, and each row has multiple bolts along the third direction.

[0037] In the above technical solution, the above structure can improve the structural strength of the magnet connecting part 12 and increase the connection position with the magnet 200, which can improve the connection strength and connection reliability between the magnet connecting part 12 and the magnet 200, and is conducive to more firmly fixing the magnet 200.

[0038] In some embodiments of the present invention, Figure 2 As shown, the ends of the first support beam 121 in the third direction are arranged to protrude relative to the first beam body 11. This arrangement allows for less obstruction at both ends of the first support beam 121 in the third direction, facilitating connection between the magnet connector 12 and the magnet 200, reducing connection difficulty and improving installation efficiency. Furthermore, this structure also allows the center of gravity of the magnet connector assembly 10 to be biased upward, closer to the center of gravity of the magnet 200, thereby improving the stability of the magnet 200 during suspension and movement.

[0039] In some embodiments of the present invention, Figures 2 to 4As shown, two vacuum chamber connecting parts 22 are provided along the first direction. The vacuum chamber connecting parts 22 include a second support beam 221 and a vacuum chamber fastener 222. The second support beam 221 extends along the third direction. The third direction, the second direction and the first direction are perpendicular to each other. The vacuum chamber fastener 222 is provided on the second support beam 221 and is provided in plurality along the third direction.

[0040] Alternatively, the vacuum chamber connection portions 22 may be provided at both ends of the second beam 21 in the first direction. Alternatively, the two vacuum chamber connection portions 22 may be spaced a certain distance from both ends of the second beam 21 in the first direction, and may simply be spaced apart along the first direction. It will be appreciated that providing two vacuum chamber connection portions 22 increases the number of connection locations with the vacuum chamber 300 and improves the reliability of securing the vacuum chamber 300.

[0041] The second support beam 221 may be, but is not limited to, a plate structure, a tube structure, or a columnar structure, and the second support beam 221 may be a hollow structure or a solid structure. Alternatively, the second support beam 221 may be a square steel. Alternatively, the second support beam 221 may also be an I-beam. As an example, the third direction may refer to Figure 2 The second support beam 221 extends along the third direction, that is, the second support beam 221 is vertically connected to the second beam body 21, so that the second support beam 221 and the second beam body 21 are connected to form a T-shaped structure or a cross-shaped structure, which can improve the overall structural rigidity and enhance the overall support stability and reliability of the fixing device 100 for the nuclear fusion pre-assembled component.

[0042] The vacuum chamber fastener 222 may be, but is not limited to, a bolt, a stud, a pin, or a clamping block, etc. The vacuum chamber fastener 222 may be provided with one, two, three, etc., along the third direction. Figure 4 , the number of the vacuum chamber fasteners 222 may be two along the third direction.

[0043] In the above technical solution, the above structure can improve the structural strength of the vacuum chamber connecting portion 22 and increase the connection position with the vacuum chamber 300, thereby improving the connection strength and connection reliability between the vacuum chamber connecting portion 22 and the vacuum chamber 300, which is conducive to more firmly fixing the vacuum chamber 300.

[0044] In some embodiments of the present invention, Figure 5 As shown, the vacuum chamber fastener 222 includes a base 2201, an adjustment block 2202, a joint shaft 2203, an adapter 2204, and a connector 2205. The base 2201 is connected to the second support beam 221, the adjustment block 2202 is adjustably arranged on the base 2201, the joint shaft 2203 is adjustably arranged on the adjustment block 2202, the adapter 2204 is hinged to the joint shaft 2203, and the connector 2205 is arranged on the adapter 2204.

[0045] The adjustment block 2202 may be, but is not limited to, a plate-shaped structure, a block-shaped structure, a rod-shaped structure, etc. For example, Figure 5 The adjustment block 2202 is an adjustment plate. The joint shaft 2203 can be, but is not limited to, a threaded adjustment rod, a turnbuckle, etc. The adapter 2204 can be, but is not limited to, a hinged seat, etc.

[0046] In the above technical solution, the adjustment block 2202, the joint shaft 2203, and the adapter 2204 are all adjustable, thereby enabling the vacuum chamber fastener 222 as a whole to have a high degree of freedom, and the position of the connector 2205 can be flexibly adjusted to better match the hole position inside the vacuum chamber 300, thereby reducing the difficulty of assembly and improving assembly efficiency.

[0047] In some embodiments of the present invention, Figure 5 As shown, the adjustment block 2202 can be adjusted in position along the second direction and in rotation around the first direction relative to the base 2201; the joint shaft 2203 can be extended and retracted along a direction perpendicular to the adjustment block 2202 relative to the adjustment block 2202; and the adapter seat 2204 can be adjusted in rotation around the first direction relative to the joint shaft 2203.

[0048] As an example, the first direction may be Figure 5 The left and right directions, the second direction can be Figure 5 The front and back direction.

[0049] In the above technical solution, the adjustment block 2202 has two degrees of freedom adjustment relative to the base 2201, the joint shaft 2203 has one degree of freedom adjustment relative to the adjustment block 2202, and the adapter 2204 has one degree of freedom adjustment relative to the joint shaft 2203. As a result, the vacuum chamber fastener 222 as a whole has a higher degree of freedom, and can especially adapt to the curved wall structure inside the vacuum chamber 300, can better cooperate with the hole position inside the vacuum chamber 300, and can better fix the vacuum chamber 300.

[0050] In some embodiments of the present invention, Figure 5 As shown, adjustment holes 2201a are provided at both ends of the first direction of the base 2201, and the adjustment holes 2201a extend along the second direction. Adjustment bolts 2206 are provided at both ends of the first direction of the adjustment block 2202, and the adjustment bolts 2206 are passed through the adjustment holes 2201a. The base 2201 is provided with a threaded fastener 2207, and the threaded fastener 2207 is arranged along the second direction and one end stops at the adjustment block 2202.

[0051] It can be understood that by loosening the adjusting bolt 2206, the position of the adjusting block 2202 can be adjusted along the adjusting hole 2201a, and then the inclination angle of the adjusting block 2202 can be adjusted through the threaded fastener 2207. Finally, tightening the adjusting bolt 2206 can fix the position of the adjusting block 2202. In this way, the position of the adjusting block 2202 relative to the base 2201 in the second direction and the rotation angle around the first direction can be adjusted. This adjustment structure is relatively simple and can improve the adjustment reliability.

[0052] Optionally, the threaded fastener 2207 may be, but is not limited to, a bolt, a threaded rod, or the like.

[0053] In some embodiments of the present invention, Figure 5 As shown, the connector 2205 includes a base plate 22051 and a columnar member 22052 . The base plate 22051 is connected to the adapter 2204 and is inclined relative to the adapter 2204 toward the side of the center of the fixing device 100 of the nuclear fusion pre-assembled component. The columnar member 22052 is arranged on the base plate 22051 .

[0054] In the above technical solution, the base plate 22051 is tilted relative to the adapter 2204 toward the side close to the center of the fixing device 100 of the nuclear fusion pre-assembled component. In this way, before the vacuum chamber fastener 222 is adjusted, the plug-in component 2205 can adapt to the curved wall inside the vacuum chamber 300, which is more conducive to the cooperation between the columnar component 22052 and the internal hole of the vacuum chamber 300.

[0055] Optionally, the columnar member 22052 may be provided as one or more on the bottom plate 22051. For example, referring to Figure 5 , two columnar members 22052 are provided on the bottom plate 22051. The columnar member 22052 can be, but is not limited to, a pin, a sleeve, and the like.

[0056] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the first connecting member 31 is bent relative to the first beam body 11 toward a side away from the center of the fixing device 100 of the nuclear fusion preassembled component, and the second connecting member 32 is bent relative to the second beam body 21 toward a side away from the center of the fixing device 100 of the nuclear fusion preassembled component, and is hingedly connected to the first connecting member 31 around a third direction; one end of the elastic energy storage member 33 is hingedly connected to the first connecting member 31 around the third direction, and the other end is hingedly connected to the second connecting member 32 around the third direction.

[0057] It can be understood that after the first connecting member 31 and the second connecting member 32 are connected, the overall shape is V-shaped or trumpet-shaped, and the opening between the first connecting member 31 and the second connecting member 32 is toward the center of the fixing device 100 of the nuclear fusion pre-assembled component. With this structure, when the magnet 200 and the vacuum chamber 300 are subjected to impact loads during suspension and movement, the first connecting member 31 and the second connecting member 32 can rotate relative to each other and allow the elastic energy storage member 33 to absorb the impact load, which can enhance the overall ability of the beam connection assembly 30 to withstand and absorb impact loads and improve the reliability of the relative position between the magnet 200 and the vacuum chamber 300.

[0058] Secondly, the first connecting member 31 and the second connecting member 32 are hingedly connected, and the elastic energy storage member 33 is hingedly connected to the first connecting member 31 and the second connecting member 32. This enables the beam connection assembly 30 as a whole to have a certain degree of mobility while also having good rigidity. Since the first beam 11 and the second beam 21 are connected through the beam connection assembly 30, this method is conducive to making the fixing device 100 of the nuclear fusion pre-assembled assembly have good rigidity as a whole, and can better fix the magnet 200 and the vacuum chamber 300, and maintain the stability and reliability of the gap between the magnet 200 and the vacuum chamber 300.

[0059] In some embodiments of the present invention, Figure 4 As shown, a plane perpendicular to the first direction is taken, the first connecting member 31 and the second connecting member 32 are arranged at an angle to the second direction in the extension direction of the orthographic projection of the plane, and the elastic energy storage member 33 extends along the extension direction in the orthographic projection of the plane.

[0060] Reference Figure 4 , the extension direction of the orthographic projection of the first connecting member 31 and the second connecting member 32 on the plane can be Figure 4 The first extension line a, the second direction can be Figure 4 That is, an angle is formed between the first extension line a and the second extension line b.

[0061] In the above technical solution, after the fixing device 100 of the nuclear fusion pre-assembled assembly fixes the magnet 200 and the vacuum chamber 300, no matter whether the impact load is in the first direction, the second direction or the third direction, the impact load can be absorbed by the elastic energy storage component 33 along the first connecting member 31 and the second connecting member 32, thereby suppressing the impact load in different directions and improving the stability and reliability of the magnet 200 and the vacuum chamber 300 during suspension and movement.

[0062] In some embodiments of the present invention, the first connecting member 31 and the second connecting member 32 are configured to extend in a direction of orthographic projection of the plane in parallel or substantially parallel to the center of gravity of the magnet 200 and the vacuum chamber 300 .

[0063] It is understandable that during normal assembly, the centers of gravity of the magnet 200 and the vacuum chamber 300 are not at the same horizontal height. Through the above scheme, after the magnet connecting assembly 10 connects the magnet 200 and the vacuum chamber connecting assembly 20 connects the vacuum chamber 300, the beam connecting assembly 30 can maintain the center of gravity of the magnet 200 and the vacuum chamber 300 at the expected position, which is beneficial to improving the assembly stability and reliability of the magnet 200 and the vacuum chamber 300.

[0064] In some embodiments of the present invention, Figure 2 、 Figure 3 and Figure 6 As shown, the fixing device 100 of the nuclear fusion pre-assembled component includes a middle preload component 40, and the middle preload component 40 includes a support frame 41 and an adjustable connecting member 42. The support frame 41 is connected to the middle position of the second beam body 21, and the adjustable connecting member 42 is adjustable in length along the second direction, and one end is hinged to the support frame 41, and the other end is hinged to the first beam body 11.

[0065] The adjustable connecting member 42 may be, but is not limited to, an adjustment mechanism consisting of a turnbuckle, a sleeve, and a double-screw rod.

[0066] It is understood that the central preload assembly 40 can connect the first beam 11 and the second beam 21, and cooperate with the beam connection assembly 30 to further improve the overall structural rigidity of the nuclear fusion pre-assembly fixture 100, thereby improving the reliability of the fixation of the magnet 200 and the vacuum chamber 300. The adjustable connection 42 has an adjustment function, thereby adjusting the preload force of the central preload assembly 40 between the first beam 11 and the second beam 21, thereby better supporting the first beam 11 and the second beam 21.

[0067] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the adjustable connecting member 42 includes a threaded sleeve 421, a screw 422 and a joint bearing 423. The two ends of the threaded sleeve 421 in the length direction are threadedly connected to the screw 422. Each screw 422 is connected to the joint bearing 423. One of the two joint bearings 423 is connected to the support frame 41 through the hinge ear 43, and the other is connected to the first beam body 11 through the hinge ear 43.

[0068] In the above technical solution, the distance between the two spherical bearings 423 can be adjusted by rotating the threaded sleeve 421 and the screw 422 relative to each other, thereby achieving adjustable length of the entire adjustable connector 42. The two spherical bearings 423 are connected to the support frame 41 and the first beam 11 via the hinged lugs 43, which provide a high degree of freedom and facilitate connection to the first beam 11 and the second beam 21.

[0069] In some embodiments of the present invention, Figure 6As shown, at least two adjustable connectors 42 are provided along the first direction. It is understood that increasing the number of adjustable connectors 42 can enhance the reliability and stability of the connection between the support frame 41 and the first beam 11. Furthermore, the above solution can also reduce the weight of a single adjustable connector 42. Since the nuclear fusion device is relatively large in size, the weight and size of the adjustable connector 42 are also relatively large. By reducing the weight of a single adjustable connector 42, the installation difficulty can be reduced and construction efficiency can be improved.

[0070] In some embodiments of the present invention, the middle preload assembly 40 further includes a force detection component, which is disposed at a force-bearing position between the adjustable connecting member 42 and the second beam body 21 , or the force detection component is disposed at a force-bearing position between the adjustable connecting member 42 and the first beam body 11 .

[0071] The force detection member may refer to a detection component or device such as a sensor capable of detecting force. For example, the force detection member may be a strain gauge. As an example, the force-bearing position between the adjustable connecting member 42 and the second beam 21 and the force-bearing position between the adjustable connecting member 42 and the first beam 11 may both refer to the rotation axis position of the joint bearing 423 and the hinge ear 43.

[0072] In the above technical solution, the force condition between the adjustable connecting member 42 and the supporting frame 41 can be detected by the force detection member, so that the force condition of the first beam 11 and the second beam 21 can be monitored in real time through a remote receiving device or platform, and the speed of the magnet 200 and the vacuum chamber 300 during suspension and movement can be adjusted in time, which can improve the safety and reliability of the magnet 200 and the vacuum chamber 300 during suspension and movement.

[0073] In some embodiments of the present invention, Figure 8 and Figure 9 As shown, the elastic energy storage member 33 includes a first spring shaft 331, a spring 332, a pressure plate 333, a pad 334, a set flange 335, a limiting flange 336, and a second spring shaft 337. The first spring shaft 331 is hinged to the first connecting member 31, the pressure plate 333 is arranged on the first spring shaft 331, there are at least two springs 332 and they are sleeved on the first spring shaft 331 and are located on the side of the pressure plate 333 away from the first connecting member 31. A pad 334 is provided between at least one group of adjacent two springs 332, the set flange 335 is sleeved on the first spring shaft 331, the set flange 335 and the limiting flange 336 are connected and together form a limited space 33a, the second spring shaft 337 is connected to the limiting flange 336 and is hinged to the second connecting member 32. The first spring shaft 331 is provided with a first limiting retaining ring 331 a and a second limiting retaining ring 331 b . The first limiting retaining ring 331 a abuts against the pressing plate 333 , and the second limiting retaining ring 331 b is located in the limiting space 33 a .

[0074] In the above technical solution, the elastic energy storage member 33 adopts the above structure and can absorb the impact load through compression of the spring 332, which has a simple structure and high working reliability.

[0075] Optionally, in the axial direction of the first spring shaft 331, the size of the limiting space 33a is smaller than the size of the gap between the magnet 200 and the vacuum chamber 300. The axial direction of the first spring shaft 331 can refer to Figure 9 In this way, the first spring shaft 331 can be prevented from moving too much and causing collision, and the magnet 200 and the vacuum chamber 300 can be prevented from colliding during the process of absorbing the impact load.

[0076] Throughout this specification, references to terms such as "some embodiments," "optionally," "further," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

[0077] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A fixing device for a nuclear fusion preassembled assembly, used to fix the relative position of a magnet and a vacuum chamber of a nuclear fusion device, characterized in that: The fixing device of the nuclear fusion pre-assembled component includes: A magnet connection assembly includes a first beam body and a magnet connection portion, wherein the first beam body extends along a first direction, and the magnet connection portion is provided on the first beam body; a vacuum chamber connection assembly, spaced apart from the magnet connection assembly along a second direction, and comprising a second beam and a vacuum chamber connection portion, wherein the second beam extends along the first direction, and the vacuum chamber connection portion is provided on the second beam, wherein the second direction is perpendicular to the first direction; A beam connection assembly is provided at both ends of the second beam in the first direction and connects the first beam, and includes a first connecting member, a second connecting member and an elastic energy storage member. The first connecting member is movably connected to the second connecting member and is detachably connected to the first beam. The second connecting member is detachably connected to the second beam. One end of the elastic energy storage member is movably connected to the first connecting member, and the other end is movably connected to the second connecting member.

2. The fixing device for a nuclear fusion preassembled component according to claim 1, characterized in that: The magnet connecting parts are set to two along the first direction, and the magnet connecting parts include a first support beam and a magnet fastener, the first support beam extends along a third direction, the third direction, the second direction and the first direction are perpendicular to each other, the magnet fastener is arranged on the first support beam, and multiple magnet fasteners are arranged along the third direction.

3. The fixing device for a nuclear fusion preassembled component according to claim 2, characterized in that: Both ends of the first support beam in the third direction are arranged to protrude relative to the first beam body.

4. The fixing device for a nuclear fusion preassembled component according to claim 1, characterized in that: The vacuum chamber connecting parts are provided with two along the first direction, and the vacuum chamber connecting parts include a second support beam and a vacuum chamber fastener. The second support beam extends along a third direction, and the third direction, the second direction and the first direction are perpendicular to each other. The vacuum chamber fastener is provided on the second support beam and is provided in plurality along the third direction.

5. The fixing device for a nuclear fusion preassembled component according to claim 4, characterized in that: The vacuum chamber fastener includes a base, an adjustment block, a joint shaft, an adapter, and a connector. The base is connected to the second support beam, the adjustment block is adjustably arranged on the base, the joint shaft is adjustably arranged on the adjustment block, the adapter is hinged on the joint shaft, and the connector is arranged on the adapter.

6. The fixing device for a nuclear fusion preassembled component according to claim 5, characterized in that: The adjustment block is positionally adjustable relative to the base along the second direction and rotationally adjustable around the first direction; The joint axis is retractable relative to the adjustment block in a direction perpendicular to the adjustment block; The adapter is rotatable relative to the joint axis around the first direction.

7. The fixing device for a nuclear fusion preassembled component according to claim 1, characterized in that: The first connecting member is bent relative to the first beam body toward a side away from the center of the fixing device of the nuclear fusion preassembled component, and the second connecting member is bent relative to the second beam body toward a side away from the center of the fixing device of the nuclear fusion preassembled component, and is hingedly connected to the first connecting member around a third direction, and the third direction, the second direction and the first direction are perpendicular to each other; one end of the elastic energy storage member is hingedly connected to the first connecting member around the third direction, and the other end is hingedly connected to the second connecting member around the third direction.

8. The fixing device for a nuclear fusion preassembled component according to claim 7, characterized in that: A plane is perpendicular to the first direction, the first connecting member and the second connecting member are arranged at an angle to the second direction in the extension direction of the orthographic projection of the plane, and the orthographic projection of the elastic energy storage member extends along the extension direction.

9. The fixing device for a nuclear fusion preassembled component according to claim 1, characterized in that: The fixing device of the nuclear fusion pre-assembled component includes a middle preload component, and the middle preload component includes a support frame and an adjustable connecting member. The support frame is connected to the middle position of the second beam body, and the adjustable connecting member is adjustable in length along the second direction, and one end is hinged to the support frame and the other end is hinged to the first beam body.

10. The fixing device for a nuclear fusion preassembled component according to claim 9, characterized in that: The middle preload assembly further includes a force detection member, which is provided at a force-bearing position between the adjustable connecting member and the second beam body, or the force detection member is provided at a force-bearing position between the adjustable connecting member and the first beam body.

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