Transfer device and transfer method of Dewar base

Abstract

The present invention relates to the field of transportation of fusion reactor components, and discloses a transportation device and a method for transporting a dewar base. The transportation device includes: a support seat, a support mechanism, and a moving mechanism. There are multiple support seats; the support mechanism includes a bracket, and multiple first support units and multiple second support units arranged on the bracket. The bracket is placed on multiple support seats. The multiple first support units are arranged at intervals along the circumferential direction, and are adjustable in height in the vertical direction and are used to support the skirt section. The multiple second support units are arranged at intervals along the circumferential direction, and are adjustable in height in the vertical direction and are used to support the base head; the moving mechanism is arranged below the bracket and can be raised and lowered in the vertical direction. The transportation device of the present invention can keep the dewar base in a horizontal state during transportation, and can also prevent the dewar base from deformation, meeting the higher requirements of the dynamic load coefficient and the eccentric load coefficient of the dewar base during transportation.

Description

Technical Field

[0001] The present invention relates to the field of fusion reactor component transportation, in particular to a transportation device and a transportation method of a dewar base. Background Art

[0002] The Dewar base is a key component in the installation of the nuclear fusion device. It is the support and installation basis for all important equipment of the main system of the nuclear fusion device. It plays an important role as a safety barrier for the main system of the nuclear fusion device. The deformation of the Dewar base during transportation has a significant impact on the main structure and the installation of important components.

[0003] Due to the large overall dimensions of the Dewar base (φ18.8×4.6m), heavy weight (approximately 360t), high installation accuracy (±3mm), dynamic load coefficient of 1.1, and eccentric load coefficient of 1.1, the transport vehicle enters the Dewar base and lifts the entire structure evenly at a lifting speed of 0.1m / min. The speed of the transport vehicle entering and exiting the Dewar base is controlled at 0.1km / h; the transport speed during transportation is less than 1km / h. This places higher demands on the transfer tools, tooling, and methods to ensure that the Dewar base meets the requirements for dynamic load coefficient and eccentric load coefficient during transportation. Currently, there is no reliable transfer device that meets these requirements. Summary of the Invention

[0004] The present invention aims to address the existing problem of a lack of reliable transfer devices to prevent deformation of the dewar base during transportation. To this end, one objective of the present invention is to provide a transfer device that can maintain the dewar base in a horizontal position during transportation, preventing deformation and meeting the higher requirements for dynamic load coefficient and eccentric load coefficient of the dewar base during transportation.

[0005] The present invention also aims to provide a method for transferring the dewar base to apply the above-mentioned transfer device.

[0006] According to an embodiment of the present invention, a transfer device is used to transfer a dewar base of a nuclear fusion device, wherein the dewar base includes a skirt section and a base head, and comprises: a support seat, wherein there are multiple support seats; a support mechanism, wherein the support mechanism includes a bracket, and multiple first support units and multiple second support units arranged on the bracket, wherein the bracket is placed on multiple support seats, wherein the multiple first support units are arranged at intervals along the circumferential direction, and are adjustable in height in the vertical direction and are used to support the skirt section, and the multiple second support units are arranged at intervals along the circumferential direction, and are adjustable in height in the vertical direction and are used to support the base head; and a moving mechanism, wherein the moving mechanism is arranged below the bracket and can be raised and lowered in the vertical direction.

[0007] According to the transfer device of the embodiment of the present invention, the first support unit and the second support unit can respectively adjust the height of the skirt section and the base head in the vertical direction, and fix the Dewar base, which can prevent the skirt section and the base head from deformation, and can also make the skirt section and the base head in a horizontal state, avoid the Dewar base from offsetting and tilting during the transfer process, and improve the accuracy of the Dewar base in the horizontal direction. The moving mechanism can adjust the height of the bracket in the vertical direction, make the bracket in a horizontal state, and perform a secondary adjustment on the Dewar base in the horizontal direction, further improving the accuracy of the Dewar base in the horizontal direction. It can be understood that the above-mentioned transfer device can be used to adjust the skirt section and the base head of the Dewar base from multiple aspects and multiple positions, thereby meeting the higher requirements of the Dewar base for the dynamic load coefficient and the eccentric load coefficient during the transfer process.

[0008] In some embodiments of the present invention, the skirt section includes a skirt and a lower planar flange, and the lower planar flange is located below the skirt; the first support unit includes: a skirt support portion, the skirt support portion is adjustable in height in the vertical direction, and is used to support the skirt; a flange support portion, the flange support portion and the skirt support portion are spaced apart, the height of the flange support portion is less than the height of the skirt support portion, and the height is adjustable in the vertical direction, and is used to support the lower planar flange.

[0009] In some embodiments of the present invention, the skirt support portion includes a first pillar, a first support, a first lifting member and a first bolt assembly, the first pillar is arranged on the bracket, the first lifting member can make the first support move in the vertical direction relative to the first pillar, the first bolt assembly can movably connect the first support and the first pillar, and can keep the first support and the first pillar relatively fixed; the flange support portion includes a second pillar, a second support, a second lifting member and a second bolt assembly, the second pillar is arranged on the bracket, and the height is less than the height of the first pillar, the second lifting member can make the second support move in the vertical direction relative to the second pillar, the second bolt assembly can movably connect the second support and the second pillar, and can keep the second support and the second pillar relatively fixed.

[0010] In some embodiments of the present invention, the base head includes a connected head bottom and a head edge, and the head edge is arranged around the circumference of the head bottom; the second support unit includes: a bottom support part, the bottom support part is adjustable in height in the vertical direction, and is used to support the head bottom; an edge support part, the edge support part is arranged on a side of the bottom support part close to the first support unit, and the edge support part is adjustable in height in the vertical direction, and is used to support the head edge.

[0011] In some embodiments of the present invention, the bottom support portion includes a third pillar, a third support, a third lifting member and a third bolt assembly, the third pillar is arranged on the bracket, the third lifting member can make the third support move in the vertical direction relative to the third pillar, the third bolt assembly can movably connect the third support and the third pillar, and can keep the third support and the third pillar relatively fixed; the edge support portion includes a fourth pillar, a fourth support, a fourth lifting member and a fourth bolt assembly, the fourth pillar is arranged on the bracket, the fourth lifting member can make the fourth support move in the vertical direction relative to the fourth pillar, the fourth bolt assembly can movably connect the fourth support and the fourth pillar, and can keep the fourth support and the fourth pillar relatively fixed.

[0012] In some embodiments of the present invention, the third support is provided with a first contoured support surface, which matches the bottom surface shape of the bottom of the head; the fourth support is provided with a second contoured support surface, which matches the outer surface shape of the edge of the head.

[0013] In some embodiments of the present invention, the plurality of support seats are divided into a first group, a second group and a third group, the first group, the second group and the third group are spaced apart along a first direction, a first aisle is formed between the first group and the second group, and a second aisle is formed between the second group and the third group, the first group, the second group and the third group each include at least two support seats, the first aisle and the second aisle extend along a second direction, and the second direction is perpendicular to the first direction; there are two movable mechanisms, the two movable mechanisms extend along the second direction, and one is arranged in the first aisle and the other is arranged in the second aisle.

[0014] In some embodiments of the present invention, the first group, the second group and the third group include at least three support seats, and the at least three support seats in the first group, the second group and the third group are spaced apart along the first direction and the second direction, and the number of support seats in the first group and the third group is less than the number of support seats in the second group.

[0015] In some embodiments of the present invention, the moving mechanism includes a power locomotive, a six-axis module transporter and two four-axis module transporters, and the power locomotive, the six-axis module transporter and the two four-axis module transporters are arranged along the second direction and connected in sequence.

[0016] According to an embodiment of the present invention, a method for transporting a dewar base is provided. The dewar base is applied to a nuclear fusion device and includes any of the transport devices described above. The method includes: placing the bracket of the support mechanism on a plurality of support seats; placing the dewar base on the support mechanism so that the skirt section of the dewar base is supported on a plurality of first support units, and the base head is supported on a plurality of second support units, and the dewar base is adjusted to a horizontal level by the plurality of first support units and the plurality of second support units; moving the moving mechanism to the bottom of the bracket and .... The moving mechanism is lifted as a whole to separate the assembly composed of the supporting mechanism and the Dewar base from the multiple support seats; the moving mechanism is controlled to move along a predetermined trajectory, and the posture state of the Dewar base is monitored in real time, and the multiple first support units and the multiple second support units are adjusted in real time to keep the Dewar base level; the multiple support seats are placed at the target position for the transfer of the Dewar base; after the moving mechanism moves to the target position, the moving mechanism is lowered as a whole to replace the bracket and the Dewar base on the multiple support seats, and the moving mechanism is controlled to move out from under the bracket.

[0017] According to the method for transferring the Dewar base of an embodiment of the present invention, deformation of the skirt section and the base head of the Dewar base can be avoided by using the first support unit and the second support unit, and the horizontal accuracy of the skirt section and the base head of the Dewar base can also be adjusted. The moving mechanism can make secondary adjustments to the horizontal accuracy of the Dewar base to meet the high installation accuracy requirements of the Dewar base. The moving mechanism is controlled to move along a predetermined trajectory, and the position state of the Dewar base is monitored in real time. The multiple first support units and the multiple second support units are adjusted in real time to keep the Dewar base horizontal, further improving the horizontal accuracy of the Dewar base.

[0018] 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

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a Dewar base provided in some embodiments of the present invention;

[0021] Figure 2 A schematic diagram of a three-dimensional structure of a transfer device and a Dewar base used in conjunction with each other according to some embodiments of the present invention;

[0022] Figure 3A schematic diagram of a portion of the structure of a transfer device provided in some embodiments of the present invention;

[0023] Figure 4 A top view of a support mechanism provided for some embodiments of the present invention;

[0024] Figure 5 for Figure 3 A local enlarged view of location I;

[0025] Figure 6 for Figure 3 A partial enlarged view of location II;

[0026] Figure 7 for Figure 3 A partial enlarged view of point III;

[0027] Figure 8 for Figure 3 A partial enlarged view of IV;

[0028] Figure 9 A schematic diagram of a three-dimensional structure of multiple support bases provided in some embodiments of the present invention;

[0029] Figure 10 A schematic diagram of the three-dimensional structure of a moving mechanism provided in some embodiments of the present invention;

[0030] Figure 11 A flow chart of a method for transporting a Dewar base is provided for some embodiments of the present invention Figure 1 ;

[0031] Figure 12 Flow chart of the method for transporting the Dewar base provided in some embodiments of the present invention Figure 2 .

[0032] Reference numerals:

[0033] 100. Transfer device;

[0034] 10. Support base; 11. First group; 12. Second group; 13. Third group; 14. First aisle; 15. Second aisle;

[0035] 20. Support mechanism;

[0036] 21. Bracket;

[0037] 211. First supporting unit; 21101. Barrier gasket;

[0038] 2111, skirt support portion; 21111, first pillar; 21112, first support; 21113, first jacking member; 21114, first bolt assembly;

[0039] 2112, flange support; 21121, second support; 21122, second support; 21123, second jacking member; 21124, second bolt assembly;

[0040] 212. Second supporting unit;

[0041] 2121, bottom support portion; 2121a, first contoured support surface; 21211, third pillar; 21212, third support; 21213, third jacking member; 21214, third bolt assembly;

[0042] 2122, edge support portion; 2122a, second contoured support surface; 21221, fourth pillar; 21222, fourth support; 21223, fourth jacking member; 21224, fourth bolt assembly;

[0043] 30. Mobile mechanism;

[0044] 31. Power locomotive; 32. Six-axle module transporter; 33. Four-axle module transporter;

[0045] 200, Dewar base; 210, skirt section; 2101, skirt; 2102, lower plane flange; 220, base head; 2201, head bottom; 2202, head edge. DETAILED DESCRIPTION

[0046] 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.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "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.

[0048] 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.

[0049] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0050] 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.

[0051] Reference below Figures 1-10 , describing a transfer device 100 according to an embodiment of the present invention.

[0052] like Figures 1 to 4 As shown, the transfer device 100 of the embodiment of the present invention can be applied to transfer the dewar base 200 of a nuclear fusion device, and the dewar base 200 includes a skirt section 210 and a base head 220. The transfer device 100 includes: a support base 10, a support mechanism 20 and a moving mechanism 30.

[0053] There are multiple support bases 10. The support mechanism 20 may include a bracket 21, and multiple first support units 211 and multiple second support units 212 provided on the bracket 21. The bracket 21 is placed on multiple support bases 10. The multiple first support units 211 are arranged at intervals along the circumferential direction and are vertically height-adjustable and used to support the skirt section 210. The multiple second support units 212 are arranged at intervals along the circumferential direction and are vertically height-adjustable and used to support the base head 220. The moving mechanism 30 is provided below the bracket 21 and can be raised and lowered in the vertical direction.

[0054] The support base 10 can be a mechanism that supports the support mechanism 20, and can be understood as a pier, a leg, or other components. The number of support bases 10 can be, but is not limited to, two, four, six, eight, ten, twelve, fourteen, sixteen, eighteen, twenty, twenty-two, twenty-four, and the like. For example, referring to Figure 9 , the number of the support bases 10 can be twenty-four.

[0055] The support mechanism 20 may refer to a mechanism that supports the Dewar base 200, and the inner contour of the support mechanism 20 is similar to the outer contour of the Dewar base 200. The support mechanism 20 may be made of, but not limited to, alloy steel, stainless steel, aluminum alloy, composite material, etc. In the above scheme, the support mechanism 20 may include a bracket 21, which may be a plate-like structure, and the shape may be, but not limited to, a circle, a polygon, an irregular shape, etc. For example, referring to Figure 4When it is a polygon, it can be an octagon, which is similar to a circle, can save materials and reduce processing costs.

[0056] The first supporting unit 211 may refer to a mechanism for supporting the skirt segment 210, and the number may be, but is not limited to, two, four, six, eight, ten, twelve, fourteen, sixteen, eighteen, twenty, twenty-two, twenty-four, etc. Figure 3 "Vertical direction" can refer to the vertical direction. The first support units 211 are spaced apart to evenly support the weight of the skirt section 210 and prevent structural deformation caused by localized stress concentration. Because each first support unit 211 is vertically adjustable, multiple first support units 211 can be used to support and adjust the skirt section 210 from multiple positions, thereby adjusting the skirt section 210 to a horizontal position.

[0057] Second support units 212 may be mechanisms that support the base head 220. The number of second support units 212 may be, but is not limited to, two, four, six, eight, ten, twelve, fourteen, sixteen, eighteen, twenty, twenty-two, twenty-four, or the like. A certain distance is maintained between each second support unit 212 to evenly support the weight of the base head 220 and avoid structural deformation caused by localized stress concentration. Because each second support unit 212 is vertically adjustable, multiple second support units 212 can be used to support and adjust the base head 220 from multiple positions, thereby adjusting the base head 220 to a horizontal position.

[0058] Among them, multiple first support units 211 can be spaced along the circumferential direction to form a first annular structure, and multiple second support units 212 can be spaced along the circumferential direction to form a second annular structure. The second annular structure and the first annular structure can be concentric, and the second annular structure is located on the inner side of the first annular structure.

[0059] The moving mechanism 30 can refer to a movable mechanism, and can also adjust the position of the bracket 21 in the up and down direction. When the bracket 21 is placed on multiple support seats 10, since the moving mechanism 30 can be raised and lowered in the vertical direction, the moving mechanism 30 can move to the lower side of the bracket 21 at a lower height, and after rising, lift up the entire bracket 21 and the Dewar base 200, so that the bracket 21 can be separated from the support seat 10, and the moving mechanism 30 can transport the Dewar base 200 with the support mechanism 20. After reaching the target position, the multiple support seats 10 can be rearranged, and the moving mechanism 30 can be lowered to a certain height so that the bracket 21 can be re-supported on the multiple support seats 10 and the Dewar base 200 can be temporarily placed.

[0060] According to the transfer device 100 of the embodiment of the present invention, the first support unit 211 and the second support unit 212 can respectively adjust the vertical height of the skirt section 210 and the base head 220, and fix the dewar base 200. This can prevent the skirt section 210 and the base head 220 from deformation, and can also keep the skirt section 210 and the base head 220 in a horizontal state, preventing the dewar base 200 from shifting and tilting during transfer, thereby improving the horizontal accuracy of the dewar base 200. The moving mechanism 30 can adjust the vertical height of the bracket 21, keeping the bracket 21 in a horizontal state, and perform secondary horizontal adjustment on the dewar base 200, further improving the horizontal accuracy of the dewar base 200. It can be understood that the above-mentioned transfer device 100 can adjust the skirt section 210 and the base head 220 of the dewar base 200 from multiple aspects and positions, thereby meeting the higher requirements of the dynamic load coefficient and the eccentric load coefficient of the dewar base 200 during transfer.

[0061] In some embodiments of the present invention, reference Figure 1 、 Figures 4 to 6 The skirt section 210 includes a skirt 2101 and a lower plane flange 2102, and the lower plane flange 2102 is located below the skirt 2101; the first support unit 211 includes: a skirt support portion 2111 and a flange support portion 2112, the skirt support portion 2111 is height-adjustable in the vertical direction, and is used to support the skirt 2101; the flange support portion 2112 and the skirt support portion 2111 are spaced apart, the height of the flange support portion 2112 is less than the height of the skirt support portion 2111, and is height-adjustable in the vertical direction, and is used to support the lower plane flange 2102.

[0062] The skirt support portion 2111 and the flange support portion 2112 are arranged at intervals along the circumferential direction. The skirt support portion 2111 and the flange support portion 2112 can be arranged in the radial direction of the first annular structure surrounded by the plurality of first support units 211, located on the same straight line, or staggered in the circumferential direction of the first annular structure. For example, referring to Figure 4 The skirt support portion 2111 and the flange support portion 2112 are arranged at intervals on the same straight line.

[0063] In the above technical solution, by arranging multiple flange support portions 2112 and multiple skirt support portions 2111 at intervals along the circumference, the height of the flange support portions 2112 is smaller than that of the skirt support portions 2111, thereby adapting to the shape of the Dewar base 200 and evenly bearing the weight of the skirt 2101 and the lower planar flange 2102, effectively reducing the risk of deformation of the skirt 2101 and the lower planar flange 2102, further improving the support effect of the first support unit 211 on the skirt segment 210, reducing the risk of deformation of the Dewar base 200 during transportation, and improving the reliability of the transfer device 100. Furthermore, the flange support portions 2112 and the skirt support portions 2111 are vertically height-adjustable, ensuring that the skirt 2101 and the lower planar flange 2102 are in a horizontal state, further improving the leveling effect of the Dewar base 200.

[0064] In some embodiments of the present invention, reference Figure 5 and Figure 6 The skirt support portion 2111 includes a first pillar 21111, a first support 21112, a first lifting member 21113 and a first bolt assembly 21114. The first pillar 21111 is provided on the bracket 21. The first lifting member 21113 can make the first support 21112 move in the vertical direction relative to the first pillar 21111. The first bolt assembly 21114 can movably connect the first support 21112 and the first pillar 21111, and can keep the first support 21112 and the first pillar 21111 relatively fixed. The flange support portion 211 2 includes a second pillar 21121, a second support 21122, a second lifting member 21123 and a second bolt assembly 21124. The second pillar 21121 is provided on the bracket 21 and has a height less than that of the first pillar 21111. The second lifting member 21123 enables the second support 21122 to move vertically relative to the second pillar 21121. The second bolt assembly 21124 can movably connect the second support 21122 and the second pillar 21121 and can keep the second support 21122 and the second pillar 21121 relatively fixed.

[0065] The first lifting member 21113 may refer to a mechanism that enables the first support 21112 to be adjusted in the vertical direction, and may be, but not limited to, a jack, a hydraulic cylinder, a screw, etc. Figure 5 , the first lifting member 21113 can be a jack.

[0066] The first bolt assembly 21114 may refer to a mechanism for connecting the first support 21112 and the first pillar 21111, and may be composed of a gasket, a bolt, and a nut. Figure 5, the bolt is connected to the first support 21112, and the first pillar 21111 is provided with a through hole in the vertical direction, and coaxial gaskets are provided at both ends of the through hole. Multiple nuts can be sleeved on the bolt, and then passed through the through hole on the first pillar 21111, and the bolt is tightened with the nuts. Among them, the number of nuts at both ends of the through hole can be consistent or inconsistent. After the first lifting member 21113 adjusts the height of the first support 21112 relative to the first pillar 21111, the nuts at both ends of the through hole of the bolt in the first bolt assembly 21114 can be locked, thereby keeping the relative positions of the first support 21112 and the first pillar 21111 fixed. In the skirt support part 2111 of the above structure, both the first bolt assembly 21114 and the first lifting member 21113 can be adjusted, thereby achieving two adjustments.

[0067] The second lifting member 21123 may refer to a mechanism that enables the second support 21122 to be adjusted in the vertical direction, and may be, but not limited to, a jack, a hydraulic cylinder, a screw, and the like.

[0068] The second bolt assembly 21124 may refer to a mechanism for connecting the second support 21122 and the second pillar 21121, and may be composed of a gasket, a bolt, and a nut. Figure 6 , the bolt is connected to the second support 21122, and the second pillar 21121 is provided with a through hole in the vertical direction, and coaxial gaskets are provided at both ends of the through hole. A nut can be sleeved on the bolt, and then passed through the through hole on the second pillar 21121, and the bolt is tightened with the nut. Among them, the number of nuts at both ends of the through hole can be consistent or inconsistent. After the second lifting member 21123 adjusts the height of the second support 21122 relative to the second pillar 21121, the nuts at both ends of the through hole of the bolt in the second bolt assembly 21124 can be locked, thereby keeping the relative position of the second support 21122 and the second pillar 21121 fixed. In the flange support part 2112 of the above structure, both the second bolt assembly 21124 and the second lifting member 21123 can be adjusted, thereby achieving double adjustment.

[0069] In the above technical solution, the skirt support portion 2111 includes a first support 21111, a first support 21112, a first lifting member 21113, and a first bolt assembly 21114. The flange support portion 2112 includes a second support 21121, a second support 21122, a second lifting member 21123, and a second bolt assembly 21124. The simple structures of the skirt support portion 21111 and the flange support portion 2112 can save costs and improve the reliability of the transfer device 100. Furthermore, the vertical displacement of the first support 21112 and the second support 21122 can be easily adjusted, thereby improving the efficiency of transferring the dewar base 200.

[0070] In some embodiments of the present invention, reference Figure 1 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 8 The base head 220 includes a connected head bottom 2201 and a head edge 2202, and the head edge 2202 is arranged around the circumference of the head bottom 2201; the second support unit 212 includes: a bottom support part 2121 and an edge support part 2122, the bottom support part 2121 is height-adjustable in the vertical direction, and is used to support the head bottom 2201; the edge support part 2122 is arranged on the side of the bottom support part 2121 close to the first support unit 211, and the edge support part 2122 is height-adjustable in the vertical direction, and is used to support the head edge 2202.

[0071] The plurality of second support units 212 can be spaced apart along the circumferential direction to form a second annular structure, the bottom support portion 2121 and the edge support portion 2122 can be spaced apart along the circumferential direction of the second annular structure, and the bottom support portion 2121 and the edge support portion 2122 can also be distributed in the radial direction of the second annular structure and located on the same straight line. Figure 4 , the bottom support portion 2121 and the edge support portion 2122 are not on the same straight line and are arranged at intervals from each other.

[0072] In the above technical solution, the bottom 2201 and the edge 2202 of the head can be supported by multiple bottom support portions 2121 and multiple edge support portions 2122 arranged at intervals along the circumference, reducing the risk of deformation of the bottom 2201 and the edge 2202 of the head during transportation, ensuring that the dewar base 200 does not deviate during transportation, and evenly bearing the weight of the bottom 2201 and the edge 2202 of the head, reducing the risk of deformation of the dewar base 200 during transportation, thereby improving the reliability of the transfer device 100. At the same time, the bottom support portion 2121 and the edge support portion 2122 are vertically height-adjustable, ensuring that the bottom 2201 and the edge 2202 of the head are in a horizontal state, ensuring the horizontal accuracy of the bottom 2201 and the edge 2202 of the head, and further improving the leveling effect of the dewar base 200.

[0073] In some embodiments of the present invention, reference Figure 7 and Figure 8The bottom support portion 2121 includes a third pillar 21211, a third support 21212, a third lifting member 21213 and a third bolt assembly 21214. The third pillar 21211 is provided on the bracket 21. The third lifting member 21213 can make the third support 21212 move in the vertical direction relative to the third pillar 21211. The third bolt assembly 21214 can movably connect the third support 21212 and the third pillar 21211, and can keep the third support 21212 and the third pillar 21211 relatively fixed. ;The edge support portion 2122 includes a fourth pillar 21221, a fourth support 21222, a fourth lifting member 21223 and a fourth bolt assembly 21224. The fourth pillar 21221 is arranged on the bracket 21. The fourth lifting member 21223 can make the fourth support 21222 move in the vertical direction relative to the fourth pillar 21221. The fourth bolt assembly 21224 can movably connect the fourth support 21222 and the fourth pillar 21221, and can keep the fourth support 21222 and the fourth pillar 21221 relatively fixed.

[0074] The third lifting member 21213 may refer to a mechanism that enables the third support 21212 to be adjusted in vertical displacement, and may be, but not limited to, a jack, a hydraulic cylinder, a screw, etc. Figure 5 The third lifting member 21213 can be a jack.

[0075] The third bolt assembly 21214 may refer to a mechanism for connecting the third support 21212 and the third pillar 21211, and may be composed of a gasket, a bolt, and a nut. Figure 7 , the bolt is connected to the third support 21212, and the third pillar 21211 is provided with a through hole in the vertical direction, and coaxial gaskets are provided at both ends of the through hole. Multiple nuts can be sleeved on the bolt, and then passed through the through hole on the third pillar 21211, and the bolt is tightened with nuts. Among them, the number of nuts at both ends of the through hole can be consistent or inconsistent. After the third lifting member 21213 adjusts the height of the third support 21212 relative to the third pillar 21211, the nuts at both ends of the through hole of the bolt in the third bolt assembly 21214 can be locked, thereby keeping the relative positions of the third support 21212 and the third pillar 21211 fixed. In the bottom support part 2121 of the above structure, both the third bolt assembly 21214 and the third lifting member 21213 can be adjusted, thereby achieving double adjustment.

[0076] The fourth lifting member 21223 may refer to a mechanism that enables the fourth support 21222 to be adjusted in the vertical direction, and may be, but not limited to, a jack, a hydraulic cylinder, a screw, and the like.

[0077] The fourth bolt assembly 21224 may refer to a mechanism for connecting the fourth support 21222 and the fourth pillar 21221, and may be composed of a gasket, a bolt, and a nut. Figure 6 , the bolt is connected to the fourth support 21222, and the fourth pillar 21221 is provided with a through hole in the vertical direction, and coaxial gaskets are provided at both ends of the through hole. Multiple nuts can be sleeved on the bolt, and then passed through the through hole on the fourth pillar 21221, and the bolt is tightened with nuts. Among them, the number of nuts at both ends of the through hole of the bolt can be consistent or inconsistent. After the fourth lifting member 21223 adjusts the height of the fourth support 21222 relative to the fourth pillar 21221, the nuts at both ends of the through hole of the bolt in the fourth bolt assembly 21224 can be locked, thereby keeping the relative position of the fourth support 21222 and the fourth pillar 21221 fixed. In the edge support part 2122 of the above structure, both the fourth bolt assembly 21224 and the fourth lifting member 21223 can be adjusted, thereby achieving two adjustments.

[0078] In the above technical solution, the bottom support portion 2121 includes a third pillar 21211, a third support 21212, a third lifting member 21213, and a third bolt assembly 21214. The edge support portion 2122 includes a fourth pillar 21221, a fourth support 21222, a fourth lifting member 21223, and a fourth bolt assembly 21224. The simple structures of the bottom support portion 2121 and the edge support portion 2122 can save costs and improve the reliability of the transfer device 100. Furthermore, the vertical displacement of the third support 21212 and the fourth support 21222 can be easily adjusted, thereby improving the efficiency of transferring the dewar base 200.

[0079] In some embodiments of the present invention, reference Figure 7 and Figure 8 The third support 21212 is provided with a first contoured support surface 2121a, which matches the bottom surface shape of the head bottom 2201; the fourth support 21222 is provided with a second contoured support surface 2122a, which matches the outer surface shape of the head edge 2202.

[0080] The first contoured support surface 2121a may refer to a contoured surface that can completely fit with the head bottom 2201, and may be, but is not limited to, a spherical surface, a conical surface, or a specific curved surface.

[0081] The second contoured support surface 2122a may refer to a contoured surface that can completely fit with the head edge 2202, and may be, but not limited to, a spherical surface, a conical surface, or a specific curved surface.

[0082] In the above technical solution, the first contoured support surface 2121a is completely aligned with the bottom surface of the head bottom 2201, achieving surface contact rather than point contact, avoiding local stress concentration and preventing deformation of the head bottom 2201. The second contoured support surface 2122a is completely aligned with the head edge 2202, achieving surface contact rather than point contact, avoiding local stress concentration and preventing deformation of the head edge 2202. Together with the first contoured support surface 2121a, it forms a three-dimensional support system of "bottom support + lateral restraint", ensuring the stability of the Dewar base 200 during transportation and improving the reliability of the transfer device 100.

[0083] In some embodiments of the present invention, reference Figures 5 to 8 The first support 21112 , the second support 21122 , the third support 21212 and the fourth support 21222 are all provided with a blocking gasket 21101 .

[0084] The barrier gasket 21101 can be made of, but is not limited to, bakelite, rubber, fiberglass resin, ceramic, polytetrafluoroethylene, or the like. In the above technical solution, the barrier gasket 21101 can block electrochemical corrosion between the support mechanism 20 and the Dewar base 200 and provide insulation protection. It can also prevent impurity contamination, such as material contamination, caused by metal contact between the support mechanism 20 and the Dewar base 200, thereby improving the reliability of the transfer device 100.

[0085] In some embodiments of the present invention, reference Figure 9 , multiple support seats 10 are divided into a first group 11, a second group 12 and a third group 13, the first group 11, the second group 12 and the third group 13 are arranged at intervals along the first direction, a first aisle 14 is formed between the first group 11 and the second group 12, and a second aisle 15 is formed between the second group 12 and the third group 13, the first group 11, the second group 12 and the third group 13 each include at least two support seats 10, the first aisle 14 and the second aisle 15 extend along the second direction, and the second direction is perpendicular to the first direction; there are two moving mechanisms 30, the two moving mechanisms 30 extend along the second direction, and one is arranged in the first aisle 14, and the other is arranged in the second aisle 15.

[0086] "First Direction", you can refer to Figure 9 In the left and right directions, the size of the first aisle 14 and the second aisle 15 in the first direction is larger than the size of the moving mechanism 30 in the first direction. The “second direction” can refer to Figure 9 The first aisle 14 and the second aisle 15 can refer to Figure 9 The dotted box in .

[0087] The number of the first group 11 can be, but is not limited to, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, etc. The number of the second group 12 can be, but is not limited to, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, etc. The number of the third group 13 can be, but is not limited to, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, etc. For example, referring to Figure 9 , the first group 11 can be seven, the second group 12 can be nine, and the third group 13 can be seven.

[0088] In the above technical solution, the first group 11, the second group 12, and the third group 13 are spaced apart along the first direction and include at least two support bases 10, forming a multi-point load-bearing network, distributing the weight pressure of the dewar base 200, avoiding single-point overload, and stably supporting the dewar base 200, ensuring that the dewar is hoisted in a horizontal state, thereby improving the reliability of the transfer device 100. The first aisle 14 and the second aisle 15 extend along the second direction, providing access channels for the two mobile mechanisms 30. This can prevent the mobile mechanisms 30 from interfering with the multiple support bases 10 during movement, and can also provide the multiple mobile mechanisms 30 with a larger support surface, which can better support the entire bracket 21, thereby improving the stability and reliability of the support mechanism 20 and the dewar base 200 during transfer.

[0089] In some embodiments of the present invention, reference Figure 9 The first group 11, the second group 12 and the third group 13 include at least three support bases 10, and the at least three support bases 10 of the first group 11, the second group 12 and the third group 13 are arranged at intervals along the first direction and the second direction. The number of support bases 10 in the first group 11 and the third group 13 is less than the number of support bases 10 in the second group 12.

[0090] In the above technical solution, the first group 11, the second group 12, and the third group 13 include at least three support bases 10, ensuring that the first group 11, the second group 12, and the third group 13 are spaced apart along the first and second directions. The number of support bases 10 in the first and third groups 11, 13 is smaller than that in the second group 12. This allows for a greater number of support bases 10 at the center of the Dewar base 200, thus bearing the majority of the weight of the Dewar base 200 and ensuring its stability. Furthermore, the number of support bases 10 can be reduced, saving costs.

[0091] In some embodiments of the present invention, reference Figure 10The moving mechanism 30 includes a power locomotive 31, a six-axis module transporter 32 and two four-axis module transporters 33. The power locomotive 31, the six-axis module transporter 32 and the two four-axis module transporters 33 are arranged along the second direction and are connected in sequence.

[0092] The power locomotive 31 may be a PPU power locomotive. A PPU power locomotive (usually referred to as a Power Pack Unit Locomotive or Powered Pusher Unit) is a power unit that can work independently or collaboratively, and drives heavy loads to move on tracks, flat ground or specific routes by providing strong traction or thrust.

[0093] The six-axle modular transporter 32 and the four-axle modular transporter 33 are two special engineering vehicles used for transporting super-heavy and large-sized cargo. The six-axle modular transporter 32 has independent steering on all wheels, supports lateral translation, rotation on the spot, and serpentine movement, and has a small minimum turning radius. The four-axle modular transporter 33 has lower steering flexibility (usually front-axle steering or limited all-wheel steering) and a larger minimum turning radius. Among them, each wheel of the power locomotive 31, the six-axle modular transporter 32, and the four-axle modular transporter 33 can be hydraulically height-adjusted, and the hydraulic adjustment compensation stroke is 700mm (i.e., adjustable within the range of ±350mm). By adjusting the hydraulic compensation height of the tires of each axle, the transporter can be transported on an inclined surface with the vehicle plate surface level.

[0094] In the above technical solution, the mobile mechanism 30 comprises a power locomotive 31, a six-axle module transporter 32, and two four-axle module transporters 33 (total weight during transfer: 610 tons). This increases the ground-bearing area to ensure that the load-bearing capacity of the pre-assembly hall floor is met during transfer to the pre-assembly hall. The power locomotive 31, serving as the main drive unit, provides high torque output and intelligent speed regulation (e.g., variable frequency control), ensuring smooth starting and braking, avoiding load shifting due to inertial shock, and improving the reliability of the transfer device 100. The six-axle module transporter 32 and the four-axle module transporter 33 can adjust the hydraulic compensation height of the tires on each axle to enable the mobile mechanism 30 to transport on inclined surfaces and maintain a level vehicle surface, ensuring the horizontal accuracy of the dewar base 200 and improving the reliability of the transfer device 100. Furthermore, the six-axle module transporter 32, connected to the power locomotive 31, enables flexible turning, enhancing the versatility of the transfer device 100.

[0095] refer to Figure 11 According to an embodiment of the present invention, a method for transporting a Dewar base 200 is provided. The Dewar base 200 is applied to a nuclear fusion device and includes any of the transport devices 100 described above. The method includes:

[0096] Step S1: placing the bracket 21 of the support mechanism 20 on the plurality of support bases 10;

[0097] The bracket 21 of the support mechanism 20 is placed on the multiple support seats 10 by, but not limited to, hoisting, slide rail / guide rail installation, hydraulic / mechanical jacking, robotic arm / automatic installation, etc.

[0098] Step S2: placing the Dewar base 200 on the support mechanism 20, so that the skirt section 210 of the Dewar base 200 is supported on the multiple first support units 211, and the base head 220 is supported on the multiple second support units 212, and the Dewar base 200 is adjusted to a horizontal position by the multiple first support units 211 and the multiple second support units 212;

[0099] Place the Dewar base 200 on the support mechanism 20. Then, based on on-site measurement data, adjust the vertical position of the skirt section 210 using the first support unit 211 to keep it horizontal. Adjust the vertical position of the base head 220 using the second support unit 212 to keep it horizontal, and then secure the Dewar base 200.

[0100] The Dewar base 200 may be placed on the support mechanism 20 by, but is not limited to, hoisting, slide rail / guide rail installation, hydraulic / mechanical lifting, robotic arm / automatic installation, and the like.

[0101] Step S3, moving the moving mechanism 30 to the bottom of the bracket 21, and lifting the moving mechanism 30 as a whole so that the assembly composed of the supporting mechanism 20 and the Dewar base 200 is separated from the multiple support seats 10;

[0102] Step S4: Control the moving mechanism 30 to move along a predetermined trajectory, monitor the posture of the Dewar base 200 in real time, and adjust the plurality of first support units 211 and the plurality of second support units 212 in real time to keep the Dewar base 200 level;

[0103] Step S5: placing multiple support bases 10 at target positions for transfer of the Dewar base 200;

[0104] Step S6: After the moving mechanism 30 moves to the target position, the moving mechanism 30 is lowered as a whole so that the bracket 21 and the Dewar base 200 are re-placed on the multiple support seats 10, and the moving mechanism 30 is controlled to move out from under the bracket 21.

[0105] According to the method for transporting the Dewar base 200 of the embodiment of the present invention, the first support unit 211 and the second support unit 212 can prevent the skirt section 210 and the base head 220 of the Dewar base 200 from being deformed, and the accuracy of the skirt section 210 and the base head 220 of the Dewar base 200 in the horizontal direction can also be adjusted. The moving mechanism 30 can make a secondary adjustment to the accuracy of the Dewar base 200 in the horizontal direction to meet the high installation accuracy requirements of the Dewar base 200. The moving mechanism 30 is controlled to move along a predetermined trajectory, and the posture state of the Dewar base 200 is monitored in real time. The multiple first support units 211 and the multiple second support units 212 are adjusted in real time to keep the Dewar base 200 level, thereby further improving the accuracy of the Dewar base 200 in the horizontal direction. It is understandable that the above-mentioned method for transporting the Dewar base 200 can adjust the skirt section 210 and the base head 220 of the Dewar base 200 from multiple aspects and multiple positions, thereby meeting the higher requirements of the dynamic load coefficient and the eccentric load coefficient of the Dewar base 200 during the transportation process.

[0106] In some embodiments of the present invention, reference Figure 12 The steps of placing the Dewar base 200 on the support mechanism 20, supporting the skirt section 210 of the Dewar base 200 on a plurality of first support units 211, and supporting the base head 220 on a plurality of second support units 212, and adjusting the Dewar base 200 to a horizontal position by the plurality of first support units 211 and the plurality of second support units 212 include:

[0107] Place the Dewar base 200 on the support mechanism 20;

[0108] The skirt 2101 of the Dewar base 200 is supported on a plurality of skirt support portions 2111, the lower plane flange 2102 is supported on a plurality of flange support portions 2112, the head bottom 2201 is supported on a plurality of bottom support portions 2121, and the head edge 2202 is supported on a plurality of edge support portions 2122;

[0109] The Dewar base 200 is adjusted to a horizontal level by a plurality of skirt support portions 2111 , a plurality of flange support portions 2112 , a plurality of bottom support portions 2121 and a plurality of edge support portions 2122 .

[0110] In the above technical solution, the flange support portion 2112 and the bottom support portion 2121 can be used to fix the skirt 2101 and the lower flat flange 2102, and the horizontal precision of the skirt 2101 and the lower flat flange 2102 can also be adjusted. The bottom support portion 2121 and the edge support portion 2122 can be used to fix the head bottom 2201 and the head edge 2202, and the horizontal precision of the head bottom 2201 and the head edge 2202 can also be adjusted, further improving the horizontal precision of the Dewar base 200.

[0111] In some embodiments of the present invention, before the step of placing the bracket 21 of the support mechanism 20 on the plurality of support seats 10 , the method includes: optionally adding spacers to the plurality of support seats 10 to adjust the bracket 21 to a level through the plurality of support seats 10 .

[0112] In the above technical solution, the gasket can compensate for the unevenness of the support base 10 and the mounting surface, ensure the accuracy of the support base 10 in the horizontal direction, and improve the reliability of the transfer device 100.

[0113] The following combination Figures 2 to 10 , describing a specific embodiment of the transfer device 100 of the present invention.

[0114] The transfer device 100 is used to transfer the dewar base 200 of the nuclear fusion device. The dewar base 200 includes a skirt section 210 and a base head 220. The skirt section 210 includes a skirt 2101 and a lower plane flange 2102. The base head 220 includes a connected head bottom 2201 and a head edge 2202.

[0115] The transfer device 100 includes a support base 10 , a support mechanism 20 and a moving mechanism 30 .

[0116] There are twenty-four support bases 10, which are divided into a first group 11, a second group 12, and a third group 13. The first group 11 and the third group 13 include seven support bases 10, and the second group 12 includes nine support bases 10. The first group 11, the second group 12, and the third group 13 are spaced apart along a first direction, a first aisle 14 is formed between the first group 11 and the second group 12, and a second aisle 15 is formed between the second group 12 and the third group 13. The first aisle 14 and the second aisle 15 extend along a second direction, which is perpendicular to the first direction.

[0117] The support mechanism 20 includes a bracket 21, and thirty-two first support units 211 and thirty-two second support units 212 provided on the bracket 21. The bracket 21 is placed on twenty-four support bases 10. The thirty-two first support units 211 are spaced apart along the circumference and are vertically adjustable in height. They are used to support the skirt section 210. The thirty-two second support units 212 are spaced apart along the circumference and are vertically adjustable in height. They are used to support the base head 220. The first support units 211 include a flange support portion 2112 and a skirt support portion 2111. The second support units 212 include a bottom support portion 2121 and an edge support portion 2122.

[0118] The skirt support portion 2111 is vertically adjustable and is used to support the skirt 2101. The skirt support portion 2111 includes a first support 21111, a first support 21112, a first lifting member 21113, and a first bolt assembly 21114. The first support 21111 is provided on the bracket 21. The first lifting member 21113 allows the first support 21112 to move vertically relative to the first support 21111. The first bolt assembly 21114 movably connects the first support 21112 and the first support 21111, and can keep the first support 21112 and the first support 21111 relatively fixed.

[0119] The flange support portion 2112 is spaced apart from the skirt support portion 2111. The flange support portion 2112 is shorter than the skirt support portion 2111 and is vertically adjustable, thereby supporting the lower planar flange 2102. The flange support portion 2112 includes a second support 21121, a second support 21122, a second lifting member 21123, and a second bolt assembly 21124. The second support 21121 is disposed on the bracket 21 and is shorter than the first support 21111. The second lifting member 21123 allows the second support 21122 to move vertically relative to the second support 21121. The second bolt assembly 21124 movably connects the second support 21122 and the second support 21121, thereby maintaining the second support 21122 and the second support 21121 relatively fixed.

[0120] The bottom support portion 2121 is vertically adjustable and is used to support the bottom portion 2201 of the end cap. The bottom support portion 2121 includes a third support column 21211, a third support 21212, a third lifting member 21213, and a third bolt assembly 21214. The third support column 21211 is mounted on the bracket 21. The third lifting member 21213 allows the third support 21212 to move vertically relative to the third support column 21211. The third bolt assembly 21214 movably connects the third support column 21212 and the third support column 21211, maintaining the relative fixity between the third support column 21212 and the third support column 21211. The third support column 21212 is provided with a first contoured support surface 2121a that matches the shape of the bottom surface of the end cap 2201.

[0121] The edge support portion 2122 is disposed on a side of the bottom support portion 2121 near the first support unit 211. The edge support portion 2122 is vertically adjustable and is used to support the head edge 2202. The edge support portion 2122 includes a fourth pillar 21221, a fourth support 21222, a fourth lifting member 21223, and a fourth bolt assembly 21224. The fourth pillar 21221 is disposed on the bracket 21. The fourth lifting member 21223 allows the fourth support 21222 to move vertically relative to the fourth pillar 21221. The fourth bolt assembly 21224 movably connects the fourth support 21222 and the fourth pillar 21221, and can maintain the fourth support 21222 and the fourth pillar 21221 relatively fixed. The fourth support 21222 is provided with a second contoured support surface 2122 a , and the second contoured support surface 2122 a matches the outer surface shape of the head edge 2202 .

[0122] The mobile mechanism 30 is located below the bracket 21 and can be raised and lowered vertically. Two mobile mechanisms 30 are provided, extending along the second direction. One is located within the first aisle 14, and the other is located within the second aisle 15. The mobile mechanism 30 includes a power locomotive 31, a six-axle module transporter 32, and two four-axle module transporters 33. The power locomotive 31, the six-axle module transporter 32, and the two four-axle module transporters 33 are arranged along the second direction and are sequentially connected.

[0123] 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.

[0124] 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 transfer device for transferring a dewar base of a nuclear fusion device, wherein the dewar base comprises a skirt section and a base head, and is characterized in that: The transfer device comprises: Support base, wherein there are multiple support bases; A support mechanism, comprising a bracket, and a plurality of first support units and a plurality of second support units provided on the bracket, wherein the bracket is placed on a plurality of support seats, the plurality of first support units being arranged at intervals along the circumferential direction, and being vertically height-adjustable and used to support the skirt segment, and the plurality of second support units being arranged at intervals along the circumferential direction, and being vertically height-adjustable and used to support the base head; The moving mechanism is arranged below the bracket and can be raised and lowered in a vertical direction.

2. The transfer device according to claim 1, characterized in that The skirt section includes a skirt and a lower plane flange, and the lower plane flange is located below the skirt; the first supporting unit includes: A skirt support portion, wherein the skirt support portion is adjustable in height in a vertical direction and is used to support the skirt; The flange support portion is spaced apart from the skirt support portion, the height of the flange support portion is smaller than the height of the skirt support portion, and the height is adjustable in the vertical direction, for supporting the lower plane flange.

3. The transfer device according to claim 2, characterized in that The skirt support portion includes a first pillar, a first support, a first lifting member, and a first bolt assembly. The first pillar is provided on the bracket. The first lifting member can move the first support in a vertical direction relative to the first pillar. The first bolt assembly can movably connect the first support and the first pillar and can keep the first support and the first pillar relatively fixed. The flange support portion includes a second pillar, a second support, a second lifting member and a second bolt assembly. The second pillar is arranged on the bracket and its height is less than that of the first pillar. The second lifting member can make the second support move in the vertical direction relative to the second pillar. The second bolt assembly can movably connect the second support and the second pillar, and can keep the second support and the second pillar relatively fixed.

4. The transfer device according to claim 1, characterized in that The base head includes a head bottom and a head edge that are connected, and the head edge is arranged around the circumference of the head bottom; The second supporting unit includes: A bottom support portion, the bottom support portion is adjustable in height in the vertical direction and is used to support the bottom of the head; An edge support portion is provided on a side of the bottom support portion close to the first support unit, and the edge support portion is height-adjustable in the vertical direction for supporting the edge of the head.

5. The transfer device according to claim 4, characterized in that: The bottom support portion includes a third pillar, a third support, a third lifting member, and a third bolt assembly. The third pillar is provided on the bracket. The third lifting member can move the third support in a vertical direction relative to the third pillar. The third bolt assembly can movably connect the third support and the third pillar and can keep the third support and the third pillar relatively fixed. The edge support portion includes a fourth pillar, a fourth support, a fourth lifting member and a fourth bolt assembly. The fourth pillar is arranged on the bracket. The fourth lifting member can move the fourth support in the vertical direction relative to the fourth pillar. The fourth bolt assembly can movably connect the fourth support and the fourth pillar, and can keep the fourth support and the fourth pillar relatively fixed.

6. The transfer device according to claim 5, characterized in that The third support is provided with a first contoured support surface, which matches the bottom surface shape of the bottom of the head; the fourth support is provided with a second contoured support surface, which matches the outer surface shape of the edge of the head.

7. The transfer device according to claim 1, characterized in that The plurality of support seats are divided into a first group, a second group, and a third group. The first group, the second group, and the third group are spaced apart along a first direction. A first aisle is formed between the first group and the second group, and a second aisle is formed between the second group and the third group. The first group, the second group, and the third group each include at least two support seats. The first aisle and the second aisle extend along a second direction, and the second direction is perpendicular to the first direction. There are two moving mechanisms, which extend along the second direction, with one being located in the first aisle and the other being located in the second aisle.

8. The transfer device according to claim 7, characterized in that The first group, the second group and the third group include at least three support seats, and the at least three support seats in the first group, the second group and the third group are arranged at intervals along the first direction and the second direction. The number of support seats in the first group and the third group is less than the number of support seats in the second group.

9. The transfer device according to claim 7 or 8, characterized in that: The moving mechanism includes a power locomotive, a six-axis module transporter and two four-axis module transporters. The power locomotive, the six-axis module transporter and the two four-axis module transporters are arranged along the second direction and are connected in sequence.

10. A method for transporting a dewar base, wherein the dewar base is applied to a nuclear fusion device, characterized in that: Using the transfer device according to any one of claims 1 to 9, the method comprises: placing the bracket of the support mechanism on a plurality of support seats; Placing the Dewar base on the support mechanism so that the skirt section of the Dewar base is supported on a plurality of the first support units, and the base head is supported on a plurality of the second support units, and adjusting the Dewar base to a horizontal level by the plurality of the first support units and the plurality of the second support units; Moving the moving mechanism to the bottom of the bracket and lifting the moving mechanism as a whole so that the assembly composed of the supporting mechanism and the Dewar base is separated from the plurality of supporting seats; Controlling the moving mechanism to move along a predetermined trajectory, monitoring the position state of the Dewar base in real time, and adjusting the plurality of first support units and the plurality of second support units in real time to keep the Dewar base level; Placing a plurality of the support bases at target positions for transfer of the Dewar base; After the moving mechanism moves to the target position, the moving mechanism is lowered as a whole to place the bracket and the Dewar base back on the plurality of support seats, and the moving mechanism is controlled to move out from under the bracket.

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