A connection assembly for a tokamak device

Abstract

The application relates to the technical field of nuclear fusion, and discloses a connecting assembly of a tokamak device, which comprises a connecting bolt, a first connecting sleeve, a second connecting sleeve, a first spherical gasket, a second spherical gasket, a connecting nut and a limiting sleeve. The connecting bolt is in screw joint cooperation with the connecting nut, and the connecting nut can rotate around a first axis at least. The first connecting sleeve, the second connecting sleeve, the first spherical gasket and the second spherical gasket are arranged on the outer circumferential side of the connecting bolt and are arranged in a spaced mode. A first spherical surface is formed on the side of the first connecting sleeve away from the connecting nut, a second spherical surface is formed on the side of the second connecting sleeve facing the connecting nut, the first spherical gasket is arranged on the side of the first connecting sleeve away from the connecting nut, and the second spherical gasket is arranged on the side of the second connecting sleeve facing the connecting nut. The connecting assembly can reduce the shearing force borne by the connecting bolt and improve the reliability of the connecting structure between the vacuum chamber and the cladding.

Description

Technical Field

[0001] This invention relates to the field of nuclear fusion technology, and in particular to a connection component for a tokamak device. Background Technology

[0002] Tokamak devices are one of the most important components in nuclear fusion. Currently, tokamak devices typically consist of a vacuum chamber and a blanket. The vacuum chamber and blanket are usually connected by a rigid fastening structure, using flat washers and fasteners for a fixed connection. The two ends of the fasteners are directly attached to the end faces of the components. This connection structure has high rigidity, and the connection between the blanket and the vacuum chamber is maintained by the strength of the fasteners themselves.

[0003] When a tokamak device is in operation, the vacuum chamber will undergo irregular deformation due to thermal loads, electromagnetic loads, etc., and the vacuum chamber and cladding will experience relative displacement. This causes the fasteners connecting the vacuum chamber and cladding to be subjected to large radial shear forces, which can easily lead to deformation and breakage of the fasteners, thereby reducing the reliability or causing failure of the connection structure between the vacuum chamber and cladding. Summary of the Invention

[0004] The purpose of this invention is to provide a connection assembly for a tokamak device to solve the technical problem that, during the operation of the tokamak device, the fasteners between the vacuum chamber and the cladding are subjected to large radial shear forces, which easily lead to deformation and breakage of the fasteners, thereby reducing the reliability or causing failure of the connection structure between the vacuum chamber and the cladding.

[0005] To achieve the above objectives, the present invention provides a connecting assembly for a tokamak device, used for the cladding and a vacuum chamber, wherein the vacuum chamber is located behind the cladding, and includes a connecting bolt, a first connecting sleeve, a second connecting sleeve, a first spherical washer, a second spherical washer, a connecting nut, and a limiting sleeve, wherein...

[0006] The connecting nut is connected to the vacuum chamber and is at least able to rotate about a first axis relative to the connection position. The connecting bolt is screwed into the connecting nut. The first connecting sleeve, the second connecting sleeve, the first spherical washer, and the second spherical washer are sleeved on the outer periphery of the connecting bolt and spaced apart from the connecting bolt. The first connecting sleeve is used to connect with the cladding, and a first spherical surface is formed on the side of the first connecting sleeve away from the connecting nut. The second connecting sleeve is used to connect to the vacuum chamber, and a second spherical surface is formed on the side of the second connecting sleeve facing the connecting nut. The first spherical washer is located on the side of the first connecting sleeve away from the connecting nut, and the second spherical washer is located on the side of the second connecting sleeve facing the connecting nut. The mutually locked connecting bolt and the connecting nut can cause the first spherical washer to abut against the first spherical surface and the second spherical washer to abut against the second spherical surface. The first axis is perpendicular to the central axis of the connecting bolt.

[0007] Optionally, it also includes a first open tube, the outer side wall of the first connecting sleeve is provided with a first thread, the first thread is used to connect to the cladding, the outer side wall of the first connecting sleeve is provided with a first connecting groove extending in the front-back direction, the first open tube is provided in the first connecting groove, the first open tube is provided with a through end in the front-back direction, and can be radially pressed against the first connecting sleeve and the cladding to prevent relative displacement between the first connecting sleeve and the cladding.

[0008] It also includes a second open tube, the outer wall of the second connecting sleeve is provided with a second thread, the second thread is used to connect to the cladding, the outer wall of the second connecting sleeve is provided with a second connecting groove extending in the front-back direction, the second open tube is provided in the second connecting groove, the second open tube is provided with a through end in the front-back direction, and can be radially pressed against the second connecting sleeve and the vacuum chamber to prevent relative displacement between the second connecting sleeve and the vacuum chamber.

[0009] Optionally, the first spherical surface is a forward-convex arc surface, and the rear side of the first spherical washer is provided as a third spherical surface, which is adapted to the first spherical surface;

[0010] The second spherical surface is an arc surface that convexes backward, and the front side of the second spherical washer is provided as a fourth spherical surface, which is adapted to the second spherical surface;

[0011] The interlocking connecting bolts and connecting nuts enable the first spherical surface to abut against the third spherical surface and the second spherical surface to abut against the fourth spherical surface.

[0012] Optionally, it further includes a first washer and a second washer sleeved on the outside of the connecting bolt. The first washer is located between the nut of the connecting bolt and the first spherical washer. The front end and the rear end of the first washer are respectively used to abut against the nut of the connecting bolt and the first spherical washer. The second washer is located between the first connecting sleeve and the second connecting sleeve. The second washer is at least partially located in the receiving groove of the vacuum chamber. The front end and the rear end of the second washer are respectively used to abut against the cladding and the bottom of the receiving groove.

[0013] Optionally, it also includes a rotating block, a base, and a connecting block. The limiting sleeve, the rotating block, and the base are arranged sequentially from front to back behind the second spherical washer. The limiting sleeve is fitted on the outside of the connecting nut and can prevent the connecting nut from rotating around the central axis of the connecting bolt. The rotating block is rotatably connected to the limiting sleeve and the connecting block so that the limiting sleeve and the connecting block can rotate relative to each other around the first axis and the second axis. The connecting block is located on the base and is used to connect to the vacuum chamber. The first axis, the second axis, and the central axis of the connecting bolt are perpendicular to each other.

[0014] Optionally, the limiting sleeve and the base are spaced apart in the front-rear direction, the rotating block is provided with a first rotating part and a second rotating part, the rear side of the limiting sleeve is provided with a first rotating groove, the front side of the base is provided with a second rotating groove, the first rotating part is rotatably connected to the first rotating groove around the first axis, and the second rotating part is rotatably connected to the second rotating groove around the second axis.

[0015] Optionally, the rear side of the limiting sleeve is provided with a first abutting groove corresponding to and adapted to the second rotating part, and the front side of the base is provided with a second abutting groove corresponding to and adapted to the first rotating part. The rotating block can rotate around the first axis until the second rotating part abuts against the first abutting groove, and the rotating block can rotate around the second axis until the first rotating part abuts against the second abutting groove.

[0016] Optionally, the front sidewall of the limiting sleeve is provided with a sleeve hole, which is adapted to the outer sidewall of the connecting nut, so that the connecting nut can slide along the central axis of the connecting bolt and prevent the connecting nut from rotating around the central axis of the connecting bolt.

[0017] Optionally, the rear sidewall of the base is provided with a first connecting hole, one end of the connecting block is inserted into the first connecting hole and the other end is inserted into the second connecting hole of the vacuum chamber, so as to at least prevent the base from rotating around the central axis of the second connecting hole.

[0018] Compared with the prior art, the connecting assembly of the tokamak device according to the present invention has the following advantages:

[0019] In the connecting assembly of this invention, a first spherical washer and a first connecting sleeve are fitted outside the connecting bolt. The first connecting sleeve is used to connect the cladding layer, and the first spherical washer is used to abut against the nut of the connecting bolt. A second spherical washer, a second connecting sleeve, and a connecting nut are fitted outside the connecting bolt and located in the second mounting hole of the vacuum chamber. The second connecting sleeve is used to connect the vacuum chamber, and the second spherical washer is used to abut against the connecting nut. When the connecting bolt and the connecting nut are locked, the first spherical washer abuts against the first spherical surface of the first connecting sleeve, and the second spherical washer abuts against the second spherical surface of the second connecting sleeve. Furthermore, the connecting nut can at least rotate around a point perpendicular to the connecting bolt. The rotation of the first axis of the connecting bolt causes the first and second connecting sleeves to rotate relative to each other when the cladding and vacuum chamber undergo relative displacement along the radial direction of the connecting bolt during the operation of the tokamak device. The spherical surface of the first spherical washer rubs against the first spherical surface, and the spherical surface of the second spherical washer rubs against the second spherical surface. The connecting nut and the connecting bolt rotate at least around the first axis to absorb a portion of the shear force through the aforementioned friction and displacement, thereby reducing the shear force on the connecting bolt, reducing the risk of deformation and breakage of the connecting bolt, and improving the reliability of the connection structure between the vacuum chamber and the cladding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the connection component of the present invention from one perspective.

[0021] Figure 2 This is a structural schematic diagram of the connection component of the present invention from another perspective.

[0022] Figure 3 This is a cross-sectional view of the connecting component of the present invention.

[0023] Figure 4 This is a schematic diagram of the connection between the limiting sleeve, the rotating block, and the base of the present invention.

[0024] Figure 5 This is an exploded view of the limiting sleeve, rotating block, and base of the present invention.

[0025] Figure 6 This is a schematic diagram of the limiting sleeve of the present invention.

[0026] Figure 7 A cross-sectional view of the connection component of the tokamak device of the present invention.

[0027] Figure 8 Figure 7 Sectional view of AA.

[0028] Figure 9 This is a flowchart of the assembly method of the tokamak device of the present invention.

[0029] Reference numerals: 1. Connecting bolt; 11. Nut; 2. First connecting sleeve; 21. First spherical surface; 22. First connecting groove; 3. Second connecting sleeve; 31. Second spherical surface; 32. Second connecting groove; 4. First spherical washer; 41. Third spherical surface; 5. Second spherical washer; 51. Fourth spherical surface; 6. Connecting nut; 7. Limiting sleeve; 71. First rotating groove; 72. First abutting groove; 73. Sleeve hole; 8. Rotating block; 81. First rotating part; 82. Second rotating part; 9. Base; 91. Second rotating groove; 92. Second abutting groove; 93. First connecting hole; 10. Connecting block; 20. First open tube; 30. Second open tube; 40. First washer; 50. Second washer; 100. Cladding layer; 1001. First mounting hole; 200. Vacuum chamber; 2001. Second mounting hole; 2002. Receiving groove; 2003. Second connecting hole. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] In the description of this invention, it should be understood that the terms "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are 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, and therefore should not be construed as a limitation of this invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] Example 1:

[0034] like Figures 1 to 9As shown, a connecting assembly for a tokamak device according to the present invention is used for connecting a cladding 100 and a vacuum chamber 200, wherein the vacuum chamber 200 is located behind the cladding 100. The assembly includes a connecting bolt 1, a first connecting sleeve 2, a second connecting sleeve 3, a first spherical washer 4, a second spherical washer 5, a connecting nut 6, and a limiting sleeve 7. The connecting nut 6 is connected to the vacuum chamber 200 and is at least rotatable about a first axis relative to the connection position. The connecting bolt 1 is screwed into the connecting nut 6. The first connecting sleeve 2, the second connecting sleeve 3, the first spherical washer 4, and the second spherical washer 5 are sleeved on the outer periphery of the connecting bolt 1 and spaced apart from it. The first connecting sleeve 2 is used to connect with the cladding 100. The first connecting sleeve 2 has a first spherical surface 21 formed on the side away from the connecting nut 6. The second connecting sleeve 3 is used to connect to the vacuum chamber 200, and the second connecting sleeve 3 has a second spherical surface 31 formed on the side facing the connecting nut 6. The first spherical washer 4 is disposed on the side of the first connecting sleeve 2 away from the connecting nut 6, and the second spherical washer 5 is disposed on the side of the second connecting sleeve 3 facing the connecting nut 6. The mutually locked connecting bolt 1 and connecting nut 6 enable the first spherical washer 4 to abut against the first spherical surface 21 and the second spherical washer 5 to abut against the second spherical surface 31. The first axis is perpendicular to the central axis of the connecting bolt 1.

[0035] In the above technical solution, the first spherical washer 4 and the first connecting sleeve 2 are sleeved outside the connecting bolt 1. The first connecting sleeve 2 is used to connect the cladding 100, and the first spherical washer 4 is used to abut against the nut 11 of the connecting bolt 1. The second spherical washer 5, the second connecting sleeve 3, and the connecting nut 6 are sleeved outside the connecting bolt 1 and located inside the second mounting hole 2001 of the vacuum chamber 200. The second connecting sleeve 3 is used to connect the vacuum chamber 200, and the second spherical washer 5 is used to abut against the connecting nut 6. When the connecting bolt 1 and the connecting nut 6 are locked, the first spherical washer 4 abuts against the first spherical surface 21 of the first connecting sleeve 2, and the second spherical washer 5 abuts against the second spherical surface 31 of the second connecting sleeve 3, and the connecting nut 6 can at least The connecting nut 6 and the connecting bolt 1 can rotate about a first axis perpendicular to the central axis of the connecting bolt 1. This allows the first connecting sleeve 2 and the second connecting sleeve 3 to rotate relative to each other when the cladding 100 and the vacuum chamber 200 undergo relative displacement along the radial direction of the connecting bolt 1 during the operation of the tokamak device. The spherical surface of the first spherical washer 4 rubs against the first spherical surface 21, and the spherical surface of the second spherical washer 5 rubs against the second spherical surface 31. The connecting nut 6 and the connecting bolt 1 rotate at least about the first axis to absorb a portion of the shear force through the aforementioned friction and displacement, thereby reducing the shear force on the connecting bolt 1, reducing the risk of deformation and breakage of the connecting bolt 1, and improving the reliability of the connection structure between the vacuum chamber 200 and the cladding 100.

[0036] Specifically, the nut 11 of the connecting bolt 1 is at least partially corresponding to the first spherical washer 4, and the connecting nut 6 is at least partially corresponding to the second spherical washer 5.

[0037] As an example of this embodiment, it also includes a first open tube 20, the outer wall of the first connecting sleeve 2 is provided with a first thread for connecting to the cladding 100, the outer wall of the first connecting sleeve 2 is provided with a first connecting groove 22 extending in the front-rear direction, the first open tube 20 is disposed in the first connecting groove 22, the first open tube 20 is provided with a through end in the front-rear direction and can be radially pressed against the first connecting sleeve 2 and the cladding 100 to prevent relative displacement between the first connecting sleeve 2 and the cladding 100; it also includes a second open tube 30, the outer wall of the second connecting sleeve 3 is provided with a second thread for connecting to the cladding 100, the outer wall of the second connecting sleeve 3 is provided with a second connecting groove 32 extending in the front-rear direction, the second open tube 30 is disposed in the second connecting groove 32, the second open tube 30 is provided with a through end in the front-rear direction and can be radially pressed against the second connecting sleeve 3 and the vacuum chamber 200 to prevent relative displacement between the second connecting sleeve 3 and the vacuum chamber 200.

[0038] The break is designed to facilitate the insertion of the open tube into the connecting groove. Before assembly, the width of the break of the open tube is relatively large. After the open tube is inserted into the connecting groove, it is squeezed, which reduces the width of the break. The open tube tends to return to its original shape. The first open tube 20 applies radial elastic force to the first connecting groove 22 and the cladding 100, so that the first connecting sleeve 2 and the cladding 100 maintain a stable connection and prevent the threaded connection from loosening. The second open tube 30 applies radial elastic force to the second connecting groove 32 and the vacuum chamber 200, so that the second connecting sleeve 3 and the vacuum chamber 200 maintain a stable connection and prevent the threaded connection from loosening.

[0039] In addition, multiple first connecting grooves 22 and second connecting grooves 32 can be provided along the circumference of connecting bolt 1, and the number of first open tubes 20 and second open tubes 30 can be multiple.

[0040] As an example of this embodiment, the first spherical surface 21 is a forward-convex arc surface, and the rear side of the first spherical washer 4 is a third spherical surface 41, which is adapted to the first spherical surface 21; the second spherical surface 31 is a rearward-convex arc surface, and the front side of the second spherical washer 5 is a fourth spherical surface 51, which is adapted to the second spherical surface 31; the mutually locking connecting bolt 1 and connecting nut 6 enable the first spherical surface 21 to abut against the third spherical surface 41 and the second spherical surface 31 to abut against the fourth spherical surface 51.

[0041] The first spherical surface 21 and the third spherical surface 41 abut against each other, and the second spherical surface 31 and the fourth spherical surface 51 abut against each other, so that the connecting nut 6 can rotate around the first axis and adapt to the radial relative displacement between the vacuum chamber 200 and the cladding 100.

[0042] As an example of this embodiment, it further includes a first washer 40 and a second washer 50 sleeved on the outside of the connecting bolt 1. The first washer 40 is located between the nut 11 of the connecting bolt 1 and the first spherical washer 4. The front end and the rear end of the first washer 40 are respectively used to abut against the nut 11 of the connecting bolt 1 and the first spherical washer 4. The second washer 50 is located between the first connecting sleeve 2 and the second connecting sleeve 3. The second washer 50 is at least partially located in the receiving groove 2002 of the vacuum chamber 200. The front end and the rear end of the second washer 50 are respectively used to abut against the cladding 100 and the bottom of the receiving groove 2002.

[0043] By using first washers 40 and second washers 50 of different thicknesses, it is possible to adapt to connecting bolts 1 of different lengths and adjust the size of the gap between the cladding 100 and the vacuum chamber 200.

[0044] As an example of this embodiment, it also includes a rotating block 8, a base 9, and a connecting block 10. The limiting sleeve 7, the rotating block 8, and the base 9 are arranged sequentially from front to back behind the second spherical washer 5. The limiting sleeve 7 is sleeved on the outside of the connecting nut 6 and can prevent the connecting nut 6 from rotating around the central axis of the connecting bolt 1. The rotating block 8 is rotatably connected to the limiting sleeve 7 and the connecting block 10 so that the limiting sleeve 7 and the connecting block 10 can rotate relative to each other around the first axis and the second axis. The connecting block 10 is disposed on the base 9 and is used to connect to the vacuum chamber 200. The first axis, the second axis, and the central axis of the connecting bolt 1 are perpendicular to each other.

[0045] The limiting sleeve 7, rotating block 8, base 9, and connecting block 10 are all located behind the second spherical washer 5 and can be installed in the second mounting hole 2001 on the front side wall of the vacuum chamber 200. The base 9 is connected to the vacuum chamber 200 through the connecting block 10, and the limiting sleeve 7 and the base 9 are connected through the rotating block 8, so that the limiting sleeve 7 and the base 9 can rotate relative to each other around the first axis and the second axis. The limiting sleeve 7 is sleeved on the outside of the connecting nut 6 to prevent the connecting nut 6 from rotating around the axis of the connecting bolt 1. This ensures that when the operator tightens the connecting bolt 1 on the side of the cladding 100 to achieve the fastening operation, the connecting nut 6 will not rotate with the connecting bolt 1 around the axis of the connecting bolt 1, thus ensuring that the connecting nut 6 can move axially along the connecting bolt 1. When the cladding 100 and the vacuum chamber 200 undergo relative displacement along the radial direction of the connecting bolt 1, and the connecting bolt 1 and the connecting nut 6 rotate around the center of the sphere, the limiting sleeve 7 can rotate along with them. In summary, the limiting sleeve 7, rotating block 8, base 9 and connecting block 10 can be first installed in the first mounting hole 1001 on the front side wall of the vacuum chamber 200, and then the connecting nut 6 and the connecting bolt 1 with the spherical washer are installed in relation to the limiting sleeve 7 to achieve assembly, so that the vacuum chamber 200 can be normally installed and tightened with the connecting bolt 1 with the spherical washer without the through hole.

[0046] As an example of this embodiment, the limiting sleeve 7 and the base 9 are spaced apart in the front-to-back direction. The rotating block 8 is provided with a first rotating part 81 and a second rotating part 82. The rear side of the limiting sleeve 7 is provided with a first rotating groove 71, and the front side of the base 9 is provided with a second rotating groove 91. The first rotating part 81 is rotatably connected to the first rotating groove 71 around the first axis, and the second rotating part 82 is rotatably connected to the second rotating groove 91 around the second axis.

[0047] Since there is a gap between the limiting sleeve 7 and the base 9, the limiting sleeve 7 and the base 9 can rotate relative to each other around the first axis and the second axis via the rotating block 8. When they rotate to a certain extent around the first axis or the second axis, the limiting sleeve 7 and the base 9 come into contact with each other to prevent them from continuing to rotate relative to each other.

[0048] In addition, the central axis of the first rotating part 81 is collinear with the first axis, and the first rotating part 81 is a cylindrical component. The central axis of the second rotating part 82 is collinear with the second axis, and the second rotating part 82 is a cylindrical component.

[0049] In addition, two of each of the first rotating part 81, the second rotating part 82, the first rotating groove 71, and the second rotating groove 91 can be arranged opposite each other.

[0050] As an example of this embodiment, the rear side of the limiting sleeve 7 is provided with a first abutting groove 72 corresponding to and adapted to the second rotating part 82, and the front side of the base 9 is provided with a second abutting groove 92 corresponding to and adapted to the first rotating part 81. The rotating block 8 can rotate around the first axis until the second rotating part 82 abuts against the first abutting groove 72, and the rotating block 8 can rotate around the second axis until the first rotating part 81 abuts against the second abutting groove 92.

[0051] Specifically, when the limiting sleeve 7 and the base 9 abut together, the first rotating part 81 and the first abutting groove 72 abut together; when the limiting sleeve 7 and the base 9 abut together, the second rotating part 82 and the second abutting groove 92 abut together, thereby increasing the contact area when abutting together, reducing the pressure generated by abutting together, and improving the durability of the component.

[0052] As an example of this embodiment, the front side wall of the limiting sleeve 7 is provided with a sleeve hole 73, which is adapted to the outer side wall of the connecting nut 6, so that the connecting nut 6 can slide along the central axis of the connecting bolt 1 and prevent the connecting nut 6 from rotating around the central axis of the connecting bolt 1.

[0053] When the connecting bolt 1 rotates, the wall of the sleeve hole 73 abuts against the outer wall of the connecting nut 6 along its circumference to prevent it from rotating, so that the connecting nut 6 will not rotate with the connecting bolt 1, ensuring that the connecting bolt 1 can be tightened.

[0054] Alternatively, the sleeve 73 can be a hexagonal hole.

[0055] As an example of this embodiment, the rear side wall of the base 9 is provided with a first connecting hole 93. One end of the connecting block 10 is inserted into the first connecting hole 93 and the other end is inserted into the second connecting hole 2003 of the vacuum chamber 200, so as to at least prevent the base 9 from rotating around the central axis of the second connecting hole 2003, so as to ensure that the connecting block 10, the base 9, the rotating block 8, the limiting sleeve 7 and the connecting nut 6 will not rotate with the rotation of the connecting bolt 1.

[0056] The first mounting hole 1001 and the second mounting hole 2001 can be rectangular holes, and the connecting block 10 can be a cuboid pin.

[0057] In addition, the connecting block 10 can be fixedly connected to the first connecting hole 93 and the second connecting hole 2003.

[0058] Example 2:

[0059] Reference Figures 7 to 8As shown, this embodiment relates to a tokamak device, including a vacuum chamber 200, a cladding 100, and the aforementioned connecting assembly. The rear sidewall of the cladding 100 is provided with a first mounting hole 1001. The first spherical washer 4 and the first connecting sleeve 2 are disposed in the first mounting hole 1001, and the first connecting sleeve 2 is connected to the first mounting hole 1001. The front sidewall of the vacuum chamber 200 is provided with a second mounting hole 2001. The second connecting sleeve 3, the second spherical washer 5, the limiting sleeve 7, the rotating block 8, the base 9, and the connecting block 10 are disposed in the second mounting hole 2001, and the second connecting sleeve 3 and the connecting block 10 are connected to the second mounting hole 2001. The connecting bolt 1 extends into the first mounting hole 1001 and the second mounting hole 2001.

[0060] As an example of this embodiment, the front sidewall of the vacuum chamber 200 is provided with a receiving groove 2002, which surrounds the second mounting hole 2001 and is connected to the second mounting hole 2001.

[0061] As an example of this embodiment, the bottom of the second mounting hole 2001 is provided with a second mounting hole 2001.

[0062] As an example of this embodiment, the first mounting hole 1001 can penetrate the cladding 100 to facilitate tightening the connecting bolt 1.

[0063] Example 3:

[0064] Reference Figure 9 As shown, this embodiment relates to an assembly method for the aforementioned tokamak device, comprising the following steps:

[0065] S1. Pass the connecting bolt 1 through the first spherical washer 4 and the first connecting sleeve 2, extend the end of the connecting bolt 1 with the nut 11 into the first mounting hole 1001 of the cladding 100, and install the first spherical washer 4 and the first connecting sleeve 2 into the first mounting hole 1001 of the cladding 100.

[0066] S2. Insert the connecting block 10, base 9, rotating block 8, limiting sleeve 7, connecting nut 6, second spherical washer 5 and second connecting sleeve 3 into the second mounting hole 2001 of the vacuum chamber 200, and connect the connecting block 10 and the second connecting sleeve 3 to the second mounting hole 2001.

[0067] S3. Pass the connecting bolt 1 through the second connecting sleeve 3 and the second spherical washer 5, and thread it onto the connecting nut 6;

[0068] S4. Rotate the connecting bolt 1 so that the nut 11, the first spherical washer 4, the first connecting sleeve 2, the second connecting sleeve 3, the second spherical washer 5 and the connecting nut 6 of the connecting bolt 1 come into contact.

[0069] In the above technical solution, the limiting sleeve 7, rotating block 8, base 9 and connecting block 10 are first set in the first mounting hole 1001 on the front side wall of the vacuum chamber 200. Then, the connecting nut 6 and the connecting bolt 1 with the spherical washer are installed in the corresponding limiting sleeve 7 to achieve assembly, so that the vacuum chamber 200 can be normally installed and tightened with the connecting bolt 1 with the spherical washer without the through hole.

[0070] As an example of this embodiment, fixed setting and fixed connection refer to the fixed relative positional relationship of two components, including but not limited to fixing by connectors, fixing by welding, fixing by adhesive, fixing by integral molding, and fixing by snap-fit ​​connection.

[0071] As an example of this embodiment, detachable connection and detachable setting refer to the fact that two components can be repeatedly and multiple times disassembled and assembled without damage or serious deformation, including but not limited to fixing by connectors and fixing by snap-fit ​​connection.

[0072] As an example of this embodiment, sliding connection and sliding setting refer to the connection between two connected components, where one component can slide along a fixed trajectory on the other component, including but not limited to connecting by sliding a slider into a groove or connecting by inserting a slider rod into a hole whose size and profile match the slider rod.

[0073] As an example of this embodiment, a rotatable connection or rotatable setting refers to the fact that two connected components can rotate, including but not limited to connections through bearings or connections through clearance fits.

[0074] As one example of this embodiment, the connectors include, but are not limited to, fasteners, straps, ropes, pneumatic connectors, hydraulic connectors, flanges, Velcro, and buttons.

[0075] In summary, the embodiments of the present invention provide a connecting component for a tokamak device, the technical effects of which are as follows:

[0076] In the connecting assembly of the present invention, a first spherical washer 4 and a first connecting sleeve 2 are fitted outside the connecting bolt 1. The first connecting sleeve 2 is used to connect the cladding 100, and the first spherical washer 4 is used to abut against the nut 11 of the connecting bolt 1. A second spherical washer 5, a second connecting sleeve 3, and a connecting nut 6 are fitted outside the connecting bolt 1 and located inside the second mounting hole 2001 of the vacuum chamber 200. The second connecting sleeve 3 is used to connect the vacuum chamber 200, and the second spherical washer 5 is used to abut against the connecting nut 6. When the connecting bolt 1 and the connecting nut 6 are locked, the first spherical washer 4 abuts against the first spherical surface 21 of the first connecting sleeve 2, the second spherical washer 5 abuts against the second spherical surface 31 of the second connecting sleeve 3, and the connecting nut 6 can at least The connecting nut 6 and the connecting bolt 1 can rotate about a first axis perpendicular to the central axis of the connecting bolt 1. This allows the first connecting sleeve 2 and the second connecting sleeve 3 to rotate relative to each other when the cladding 100 and the vacuum chamber 200 undergo relative displacement along the radial direction of the connecting bolt 1 during the operation of the tokamak device. The spherical surface of the first spherical washer 4 rubs against the first spherical surface 21, and the spherical surface of the second spherical washer 5 rubs against the second spherical surface 31. The connecting nut 6 and the connecting bolt 1 rotate at least about the first axis to absorb a portion of the shear force through the aforementioned friction and displacement, thereby reducing the shear force on the connecting bolt 1, reducing the risk of deformation and breakage of the connecting bolt 1, and improving the reliability of the connection structure between the vacuum chamber 200 and the cladding 100.

[0077] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A connecting assembly for a tokamak device, for a cladding (100) and a vacuum chamber (200), the vacuum chamber (200) being located behind the cladding (100), characterized in that, Includes connecting bolt (1), first connecting sleeve (2), second connecting sleeve (3), first spherical washer (4), second spherical washer (5), connecting nut (6), and limiting sleeve (7), wherein, The connecting nut (6) is connected to the vacuum chamber (200) and can rotate about a first axis relative to the connection position. The connecting bolt (1) is screwed into the connecting nut (6). The first connecting sleeve (2), the second connecting sleeve (3), the first spherical washer (4), and the second spherical washer (5) are sleeved on the outer periphery of the connecting bolt (1) and spaced apart from the connecting bolt (1). The first connecting sleeve (2) is used to connect with the cladding (100), and a first spherical surface (21) is formed on the side of the first connecting sleeve (2) away from the connecting nut (6). The second connecting sleeve (3) is used to connect to the vacuum chamber (200). The second connecting sleeve (3) has a second spherical surface (31) on the side facing the connecting nut (6), the first spherical washer (4) is located on the side of the first connecting sleeve (2) away from the connecting nut (6), the second spherical washer (5) is located on the side of the second connecting sleeve (3) facing the connecting nut (6), and the mutually locked connecting bolt (1) and connecting nut (6) enable the first spherical washer (4) to abut against the first spherical surface (21) and the second spherical washer (5) to abut against the second spherical surface (31), wherein the first axis is perpendicular to the central axis of the connecting bolt (1).

2. The connecting assembly of the tokamak device according to claim 1, characterized in that, It also includes a first open tube (20), the outer side wall of the first connecting sleeve (2) is provided with a first thread, the first thread is used to connect to the cladding (100), the outer side wall of the first connecting sleeve (2) is provided with a first connecting groove (22) extending in the front-back direction, the first open tube (20) is provided in the first connecting groove (22), the first open tube (20) is provided with a through end in the front-back direction, and can be radially pressed against the first connecting sleeve (2) and the cladding (100) to prevent the relative displacement of the first connecting sleeve (2) and the cladding (100); It also includes a second open tube (30), the outer wall of the second connecting sleeve (3) is provided with a second thread, the second thread is used to connect to the cladding (100), the outer wall of the second connecting sleeve (3) is provided with a second connecting groove (32) extending in the front-back direction, the second open tube (30) is provided in the second connecting groove (32), the second open tube (30) is provided with a through end in the front-back direction, and can be radially pressed against the second connecting sleeve (3) and the vacuum chamber (200) to prevent relative displacement between the second connecting sleeve (3) and the vacuum chamber (200).

3. The connecting assembly of the tokamak device according to claim 1, characterized in that, The first spherical surface (21) is a convex arc surface facing forward, and the rear side of the first spherical washer (4) is set as a third spherical surface (41), which is adapted to the first spherical surface (21). The second spherical surface (31) is a rearward convex arc surface, and the front side of the second spherical washer (5) is set as a fourth spherical surface (51), which is adapted to the second spherical surface (31). The interlocking connecting bolts (1) and connecting nuts (6) enable the first spherical surface (21) to abut against the third spherical surface (41) and the second spherical surface (31) to abut against the fourth spherical surface (51).

4. The connecting assembly of the tokamak device according to claim 1, characterized in that, It also includes a first washer (40) and a second washer (50) sleeved on the outside of the connecting bolt (1). The first washer (40) is located between the nut (11) of the connecting bolt (1) and the first spherical washer (4). The front end and the rear end of the first washer (40) are respectively used to abut against the nut (11) of the connecting bolt (1) and the first spherical washer (4). The second washer (50) is located between the first connecting sleeve (2) and the second connecting sleeve (3). The second washer (50) is at least partially located in the receiving groove (2002) of the vacuum chamber. The front end and the rear end of the second washer (50) are respectively used to abut against the cladding (100) and the bottom of the receiving groove (2002).

5. The connecting assembly of the tokamak device according to claim 1, characterized in that, It also includes a rotating block (8), a base (9) and a connecting block (10). The limiting sleeve (7), the rotating block (8) and the base (9) are arranged sequentially from front to back behind the second spherical washer (5). The limiting sleeve (7) is sleeved on the outside of the connecting nut (6) and can prevent the connecting nut (6) from rotating around the central axis of the connecting bolt (1). The rotating block (8) is rotatably connected to the limiting sleeve (7) and the connecting block (10) so that the limiting sleeve (7) and the connecting block (10) can rotate relative to each other around the first axis and the second axis. The connecting block (10) is located on the base (9) and is used to connect to the vacuum chamber. The first axis, the second axis and the central axis of the connecting bolt (1) are perpendicular to each other.

6. The connecting assembly of the tokamak device according to claim 5, characterized in that, The limiting sleeve (7) and the base (9) are spaced apart in the front-to-back direction. The rotating block (8) is provided with a first rotating part (81) and a second rotating part (82). The rear side of the limiting sleeve (7) is provided with a first rotating groove (71), and the front side of the base (9) is provided with a second rotating groove (91). The first rotating part (81) is rotatably connected to the first rotating groove (71) around the first axis, and the second rotating part (82) is rotatably connected to the second rotating groove (91) around the second axis.

7. The connecting assembly of the tokamak device according to claim 6, characterized in that, The rear side of the limiting sleeve (7) is provided with a first abutting groove (72) corresponding to and adapted to the second rotating part (82), and the front side of the base (9) is provided with a second abutting groove (92) corresponding to and adapted to the first rotating part (81). The rotating block (8) can rotate around the first axis until the second rotating part (82) abuts against the first abutting groove (72), and the rotating block (8) can rotate around the second axis until the first rotating part (81) abuts against the second abutting groove (92).

8. The connecting assembly of the tokamak device according to claim 5, characterized in that, The front side wall of the limiting sleeve (7) is provided with a sleeve hole (73), which is adapted to the outer side wall of the connecting nut (6), so that the connecting nut (6) can slide along the central axis of the connecting bolt (1) and prevent the connecting nut (6) from rotating around the central axis of the connecting bolt (1).

9. The connecting assembly of the tokamak device according to claim 5, characterized in that, The rear side wall of the base (9) is provided with a first connecting hole (93). One end of the connecting block (10) is inserted into the first connecting hole (93) and the other end is inserted into the second connecting hole (2003) of the vacuum chamber (200) to at least prevent the base (9) from rotating around the central axis of the second connecting hole (2003).

Images