A device for preventing swing of a tokamak device annular component during hoisting

Abstract

The application provides a Tokamak device annular member rotation hoisting anti-swing stabilizing device, and relates to the field of nuclear fusion engineering, which comprises a mounting mechanism and an anti-swing mechanism; the mounting mechanism comprises an annular plate, a plurality of fixing rods are symmetrically arranged on the annular plate, a plurality of fixing plates are arranged on the fixing rods and connected with a crane operating mechanism, and a plurality of hydraulic devices are symmetrically arranged on the annular plate; the anti-swing mechanism comprises a ring box arranged at the end of a hydraulic rod of the hydraulic device, a gear ring is rotatably arranged in the ring box, a plurality of toothed plates are arrayed and slidably arranged on the ring box, arc-shaped positioning plates for positioning the Tokamak device annular member are arranged at the ends of the toothed plates, a plurality of driven gears are arrayed and rotatably arranged in the ring box and engaged with the toothed plates and the gear ring respectively, a plurality of bottom supporting plates are arrayed and rotatably arranged at the bottom of the ring box, and pressure plates are used for cooperating with the pressure receiving portions of the bottom supporting plates. The application greatly improves the hoisting precision and installation efficiency of the annular member.

Description

Technical Field

[0001] This invention relates to the field of nuclear fusion engineering, specifically to a tokamak device ring component rotation hoisting anti-sway stabilization device. Background Technology

[0002] As the core equipment of a nuclear fusion reactor, the tokamak device contains large annular components such as a vacuum chamber shell, a magnet coil support ring, and inner and outer vacuum Dewar rings. These components are generally characterized by their large size, high weight, uneven structural rigidity, and extremely high installation precision requirements. During the construction or maintenance phases of the device, large lifting equipment is required for overall or segmental hoisting, transportation, and rotational attitude adjustment.

[0003] Currently, the hoisting of toroidal components (such as pole coils) in tokamak devices mainly employs the traditional method of using slings and cranes. However, due to the complex center of gravity distribution and large windward area of ​​the toroidal components, they are prone to horizontal swaying during hoisting and rotation due to uneven forces and inertia. This swaying not only makes it difficult to quickly and accurately align the components, severely affecting installation efficiency, but may also pose a safety hazard by causing collisions and damage to surrounding equipment or structures.

[0004] To address the stability issues during hoisting, existing technologies have proposed various solutions, but all have limitations:

[0005] The flipping tooling technology mainly addresses the balance problem of non-homogeneous components when flipping between horizontal and vertical states. It achieves force balance by adjusting the length of the slings. However, its open frame structure cannot provide circumferential constraints for ring-shaped components during hoisting and movement, and it is mainly used for attitude flipping rather than for full-process anti-swaying.

[0006] Walking anti-sway technology uses a four-sided screw support method to tighten the heavy object. Although it can prevent swaying during walking, its rigid tightening method cannot be adapted to the arc contour of the ring component and does not have the ability to adjust the rotation posture.

[0007] The lifting technology for irregularly shaped components uses an external balance beam to adjust the position of the lifting point to avoid interference, and works with a jacking mechanism to provide support during positioning. However, this solution only limits swaying through the jacking mechanism in the final positioning stage, and cannot provide continuous anti-sway constraint throughout the entire process of lifting, moving and rotating. Furthermore, it does not solve the circumferential swaying problem unique to ring-shaped components.

[0008] Therefore, existing technologies lack a dedicated anti-sway stabilization device that can provide circumferential multi-point constraint on the tokamak ring component, adapt to its arc profile, and allow for rotational attitude adjustment throughout the entire hoisting process (lifting, moving, rotating, and positioning). Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides a rotating hoisting anti-sway stabilization device for the ring component of a tokamak device. The device includes an installation mechanism and an anti-sway mechanism mounted on the installation mechanism. The ring component is guided to quickly enter through the funnel-shaped opening of the ring box. Combined with the multi-point anti-sway effect of the array-type arc-shaped positioning plates and the automatic unfolding support of the bottom support plate, which adapts to rotation, dual stability protection is achieved from both above and below. This eliminates the need for complex operations, avoids collision damage, and significantly improves the hoisting accuracy and installation efficiency of the ring component of the tokamak device.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A tokamak device annular component rotation hoisting anti-sway stabilization device includes an installation mechanism and an anti-sway mechanism. The installation mechanism includes an annular plate with symmetrically arranged fixing rods. Each fixing rod has a fixing plate connected to a crane running mechanism. Hydraulic devices are symmetrically arranged on the annular plate. The anti-sway mechanism includes an annular box located at the end of the hydraulic rod of the hydraulic device. A gear ring is rotatably installed inside the annular box. Gear plates are slidably mounted in an array on the annular box. The ends of the gear plates have arc-shaped positioning plates for positioning the annular component of the tokamak device. The inner ring box is rotatably mounted with driven gears that mesh with the toothed plate and the toothed ring respectively. The bottom of the ring box is rotatably mounted with a bottom support plate. The bottom support plate includes a pressure-bearing part, a connecting part, an inclined part and a U-shaped part along its long axis. The rotating shaft of the bottom support plate is set between the pressure-bearing part and the connecting part. The U-shaped opening of the U-shaped part is a wide opening that gradually increases in size. A support wheel is set inside the U-shaped opening of the U-shaped part. The diameter of the support wheel gradually decreases along its long axis. The bottom surface of the ring plate is arranged with pressure plates corresponding to the bottom support plate. The pressure plates are used to cooperate with the pressure-bearing part of the bottom support plate.

[0012] Furthermore, the top and bottom of the ring box are both open, and the opening at the bottom of the ring box is funnel-shaped.

[0013] Furthermore, the outer surface of the ring box is arrayed with movable holes, and a limiting groove is formed at the bottom of the movable holes. The toothed plate is located inside the movable holes, and a slider located inside the limiting groove is provided at the bottom of the toothed plate.

[0014] Furthermore, the pressure-bearing part is bent outward in an arc shape.

[0015] Furthermore, the bottom support plate is connected and fixed to the ring box via the rotation axis between the pressure-bearing part and the connecting part.

[0016] Furthermore, a mounting plate is provided inside the ring box, a motor is provided on the mounting plate, and a drive gear is provided at the end of the output shaft of the motor, the drive gear meshing with the gear ring.

[0017] Furthermore, the inclined portion is adapted to the flared opening at the bottom of the ring box.

[0018] Furthermore, the two fixed rods and the two hydraulic devices are evenly distributed on the annular plate.

[0019] Furthermore, the arc-shaped positioning plate moves synchronously with the toothed plate and gradually approaches the annular component, fitting against the outer surface of the annular component.

[0020] Furthermore, the pressure plate contacts the pressure-bearing part of the bottom support plate and applies pressure, driving the bottom support plate to rotate around the rotation axis, so that the U-shaped part guides the annular component and the bottom surface of the annular component enters the U-shaped opening, and the support wheel contacts the bottom of the annular component and provides support.

[0021] Beneficial effects:

[0022] 1. This invention utilizes an array of arc-shaped fitting and positioning plates within a ring-shaped housing to synchronously fit the outer surface of the ring-shaped component from multiple points around the circumference. Combined with the horizontal support of the bottom support plate, this forms a double-stabilized structure. This structure effectively counteracts horizontal swaying and vertical offset caused by uneven force, inertia, and wind load throughout the entire hoisting, lifting, horizontal movement, and rotation process, ensuring that the component's posture remains within the allowable deviation range and achieving smooth and controllable operation throughout the entire process.

[0023] 2. The bottom of the annular housing of the present invention adopts a flared opening design, which, together with the U-shaped wide-mouth gradually expanding guide structure of the bottom support plate, can quickly guide the annular component into the positioning area in the initial stage of hoisting without the need for repeated fine-tuning of alignment; at the same time, the synchronous movement design of the positioning plate driven by gear transmission ensures that the positioning force is evenly applied to the annular component from all sides, avoiding the offset caused by force on one side, greatly improving the alignment accuracy and efficiency, and meeting the millimeter-level installation accuracy requirements of the tokamak device.

[0024] 3. The bottom support plate of this invention features a gradually changing diameter support roller within its U-shaped opening. The support surface remains horizontal and can rotate synchronously with the annular component. This design provides stable vertical support while significantly reducing rotational resistance, allowing the component to be flexibly adjusted in rotational posture within the device without causing frictional damage to the component surface. This resolves the technical contradiction of simultaneously achieving anti-sway and rotational functions.

[0025] 4. The bottom support plate of this invention adopts an automatic unfolding / retracting design. Through the linkage between the pressure plate on the bottom surface of the annular base plate and the pressure-bearing section of the support plate, it automatically unfolds to provide support during hoisting and automatically resets during lowering, without the need for additional manual operation or complex control programs, reducing the risk of human intervention. At the same time, the arc-shaped positioning plate and the gradually changing diameter support wheel both adopt a flexible contact design that adapts to the contour of the annular component. Combined with the guided entry method, it effectively avoids collision damage between components and devices during hoisting, comprehensively improving operational safety. Attached Figure Description

[0026] Figure 1 This is a front view structural schematic diagram of a tokamak device ring component rotation hoisting anti-sway stabilization device according to the present invention;

[0027] Figure 2 This is a schematic diagram of the anti-sway mechanism of the present invention;

[0028] Figure 3 This is an exploded view of the anti-sway mechanism of the present invention;

[0029] Figure 4 This is a front view of the annular box structure of the present invention;

[0030] Figure 5 This is a bottom view of the annular box structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the bottom support plate of the present invention;

[0032] Figure 7 This is a schematic diagram of the toothed plate structure of the present invention;

[0033] Figure 8 This is a schematic diagram illustrating the usage state of a tokamak device ring component rotation hoisting anti-sway stabilization device according to the present invention.

[0034] The reference numerals in the attached drawings are as follows: 100, mounting mechanism; 101, annular plate; 102, fixing rod; 103, fixing plate; 104, hydraulic equipment; 105, pressure plate; 200, anti-sway mechanism; 201, ring box; 2011, movable hole; 202, gear ring; 203, gear plate; 231, slider; 204, arc-shaped positioning plate; 205, driven gear; 206, motor; 207, bottom support plate; 2071, pressure-bearing part; 2072, connecting part; 2073, inclined part; 2074, U-shaped part; 2075, support wheel. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0036] like Figure 1 , Figure 8As shown, a tokamak device annular component rotation hoisting anti-sway stabilization device according to the present invention includes an installation mechanism 100 and an anti-sway mechanism 200 disposed on the installation mechanism 100. The installation mechanism 100 includes an annular plate 101, on which fixed rods 102 are symmetrically arranged, and on the fixed rods 102 are fixed plates 103 connected to the crane running mechanism. Hydraulic devices 104 are symmetrically arranged on the annular plate 101. The two fixed rods 102 and the two hydraulic devices 104 are evenly distributed on the annular plate 101. The hydraulic devices 104 are existing devices and include hydraulic rods, which will not be described in detail here.

[0037] like Figure 2 , Figure 3 As shown, the anti-sway mechanism 200 includes an annular box 201 disposed at the end of the hydraulic rod of the hydraulic device 104. A gear ring 202 is rotatably mounted inside the annular box 201. A gear plate 203 is slidably mounted in an array on the annular box 201. An arc-shaped positioning plate 204 for positioning the annular component of the tokamak device is disposed at the end of the gear plate 203. Driven gears 205 that mesh with the gear plate 203 and the gear ring 202 are rotatably mounted in an array inside the annular box 201. This invention guides the annular component of the tokamak device to enter quickly through the opening of the annular box 201. The array of arc-shaped positioning plates 204 fits against the annular component of the tokamak device at multiple points, thereby preventing swaying. A bottom support plate 207 is rotatably mounted in an array at the bottom of the annular box 201. Pressure plates 105 corresponding to the bottom support plate 207 are arranged in an array on the bottom surface of the annular plate 101. The 207 bottom support plate automatically unfolds and rotates, providing double stability from both above and below. It eliminates the need for complex operations, avoids collision damage, and significantly improves the accuracy and efficiency of hoisting the ring components of the tokamak device.

[0038] like Figure 4 , Figure 7 As shown, the outer surface of the ring box 201 is arrayed with movable holes 2011. A limiting groove is formed at the bottom of each movable hole 2011. The toothed plate 203 is located within the movable holes 2011, and a slider 231 is positioned at the bottom of the toothed plate 203 within the limiting groove. The movable holes 2011 provide a channel for the sliding of the toothed plate 203. The limiting groove cooperates with the slider 231 to restrict and guide the sliding direction of the toothed plate 203. The arrayed movable holes 2011 correspond one-to-one with the toothed plates 203, ensuring that each toothed plate 203 can slide independently and stably. This prevents the toothed plates 203 from shifting, tilting, or falling off during sliding, ensuring that the toothed plates 203 and the driven gear 205 maintain a good meshing state, thereby ensuring the positioning accuracy of the arc-shaped positioning plate 204 for the annular component.

[0039] Preferred, such as Figure 5 As shown, the top and bottom of the ring box 201 are both open, and the opening at the bottom of the ring box 201 is funnel-shaped.

[0040] like Figure 6 As shown, the bottom support plate 207 includes a pressure-bearing portion 2071, a connecting portion 2072, an inclined portion 2073, and a U-shaped portion 2074 along its long axis. A rotation axis for the bottom support plate 207 is provided between the pressure-bearing portion 2071 and the connecting portion 2072. The pressure-bearing portion 2071 is curved outwards in an arc shape. The U-shaped opening of the U-shaped portion 2074 is a gradually widening opening. A support wheel 2075 is provided inside the U-shaped opening of the U-shaped portion 2074. The diameter of the support wheel 2075 gradually decreases along its long axis. The support surface (i.e., the working surface) of the support wheel 2075 is horizontal, meaning the contact area between the support wheel 2075 and the bottom of the tokamak device's annular component (the suspended object) is a horizontal plane. The bottom support plate 207 is connected and fixed to the ring box 201 via the rotation axis between the pressure-bearing portion 2071 and the connecting portion 2072.

[0041] like Figure 3 As shown, a mounting plate is provided inside the ring box 201, and a motor 206 is mounted on the mounting plate. A drive gear is located at the end of the output shaft of the motor 206, and the drive gear meshes with a gear ring 202. The motor 206 achieves precise power transmission through the meshing of the drive gear and the gear ring 202. Rotation of the gear ring 202 drives the driven gear 205 to rotate, which in turn drives the gear plate 203 to move. This allows the arc-shaped positioning plate 204 to move closer to the center of the ring box 201 to position the annular component of the tokamak device, preventing swaying of the annular component during hoisting and rotation.

[0042] Specifically, the opening at the top of the ring box 201 reduces the difficulty of installing the internal transmission components, and facilitates the later inspection and replacement of components such as the gear ring 202 and the driven gear 205. The flared opening at the bottom can guide the tokamak device's annular component to enter the ring box 201 quickly and accurately. When the tokamak device's annular component is hoisted up, it can prevent the tokamak device's annular component from colliding with the bottom of the ring box 201, thus improving the hoisting and alignment efficiency.

[0043] Furthermore, the bottom support plate 207 can rotate around the rotation axis, providing auxiliary support for the annular component of the tokamak device under specific conditions. The bottom support plate 207 rotates around the rotation axis between the pressure-bearing part 2071 and the connecting part 2072. The inclined part 2073 adapts to the flared shape of the bottom of the ring box 201. After rotation, the U-shaped opening of the U-shaped part 2074 guides the annular component to adapt to its shape, allowing the bottom surface of the annular component to enter the U-shaped opening. The support wheel 2075 inside the U-shaped part 2074 contacts the bottom of the annular component and provides support. The diameter of the support wheel 2075 gradually decreases along its long axis, and the support surface is horizontally set. This not only prevents the tokamak device's annular component from swinging due to deviation of the hoisting center of gravity, but also allows for rotational adjustment of the tokamak device's annular component, facilitating alignment before installation.

[0044] The pressure plate 105 is used to cooperate with the pressure-receiving portion 2071 of the bottom support plate 207. The pressure plates 105 arranged in an array on the bottom surface of the annular plate 101 will contact and apply pressure to the pressure-receiving portion 2071 of the bottom support plate 207 rotatably mounted in an array at the bottom of the annular box 201. When the annular component of the tokamak device rises together with the anti-sway mechanism 200, the pressure can drive the bottom support plate 207 to rotate, that is, the pressure plates 105 arranged in an array on the bottom surface of the annular plate 101 will contact and apply pressure to the pressure-receiving portion 2071 of the bottom support plate 207 rotatably mounted in an array at the bottom of the annular box 201. The pressure-receiving portion 2071 is curved outward in an arc shape to facilitate the pressure of the pressure plate 105. The bottom support plate 207 rotates around the rotation axis between the pressure-receiving portion 2071 and the connecting portion 2072. The array of bottom support plates 207 can provide uniform support force from the bottom of the annular component of the tokamak device. After rotation, the U-shaped opening of the U-shaped section 2074 guides the annular component of the tokamak device, allowing it to adapt to the shape of the annular component. This enables the bottom surface of the annular component to enter the U-shaped opening. The support wheel 2075 inside the U-shaped section 2074 contacts the bottom of the annular component and provides support. The diameter of the support wheel 2075 gradually decreases along its long axis, and its support surface is horizontal. This prevents the annular component from swaying due to a deviation in the hoisting center of gravity and allows for rotational adjustment of the annular component, further enhancing stability during hoisting and preventing sagging or displacement due to gravity. The design of the pressure plate 105 and the bottom support plate 207 allows for automatic switching between the supported and retracted states of the bottom support plate 207. In this configuration, the pressure plates 105 arranged on the bottom surface of the annular plate 101 will contact and apply pressure to the pressure-bearing part 2071 of the bottom support plate 207 rotatably mounted on the bottom of the annular box 201. The pressure-bearing part 2071 is bent outward in an arc shape to facilitate the pressure of the pressure plate 105. The bottom support plate 207 rotates around the rotation axis between the pressure-bearing part 2071 and the connecting part 2072. The inclined part 2073 adapts to the flared shape of the bottom of the annular box 201. After rotation, the U-shaped wide opening of the U-shaped part 2074 guides the annular component to adapt to the shape of the annular component, so that the bottom surface of the annular component enters the U-shaped opening. The support wheel 2075 inside the U-shaped part 2074 contacts the bottom of the annular component and provides support. No additional manual operation is required, which improves the ease of use of the device.

[0045] The pressure-bearing part 2071 is used to withstand the pressure applied by the pressure plate 105. The arc-shaped design of the pressure-bearing part 2071 facilitates the pressure plate 105 to apply pressure to the bottom support plate 207 in the vertical state. The inclined part 2073 can be adapted to the horn shape of the bottom of the ring box 201. When the bottom support plate 207 is rotated under pressure, the bottom surface of the poloidal field coil (i.e., the ring component of the tokamak device) can be located inside the U-shaped opening of the U-shaped part 2074. The wide U-shaped opening of the U-shaped part 2074 can guide the U-shaped part 2074 to be located below and outside the poloidal field coil, preventing the U-shaped part 2074 from colliding with it. The support wheel 2075 inside the U-shaped part 2074 can support the poloidal field coil of the tokamak device, which can prevent the swing caused by the deviation of the center of gravity during hoisting. Secondly, because the diameter of the support wheel 2075 gradually decreases and the support surface is set horizontally, the support wheel 2075 can be adapted to the poloidal field coil of the tokamak device for rotational adjustment, which facilitates the alignment of the poloidal field coil of the tokamak device before installation.

[0046] The working process of the anti-sway stabilizing device for rotating and hoisting the annular component of a tokamak device according to the present invention is as follows: In use, firstly, the entire anti-sway stabilizing device is firmly connected to the crane running mechanism through the fixing plate 103 at the end of the fixing rod 102 on the annular plate 101 in the installation mechanism 100, ensuring that the device moves synchronously with the crane and is stably connected during the hoisting process. Then, the crane is started to hoist the device to the top of the annular component of the tokamak device to be hoisted. The crane's lifting device passes through the installation mechanism 100 and the anti-sway mechanism 200 provided on the installation mechanism 100 and connects to the annular component of the tokamak device, and then the hoisting work is carried out.

[0047] As the tokamak device's annular component (such as a poloidal field coil) is lifted, the hydraulic device 104 is activated. The hydraulic rod of the hydraulic device 104 drives the annular box 201 to move downward. The trumpet-shaped opening at the bottom of the annular box 201 guides the annular component to enter the annular box 201 quickly and smoothly, avoiding collision between the component and the bottom of the annular box 201 during the lifting process.

[0048] When the annular component enters the annular box 201, the hydraulic device 104 operates, causing the annular box 201 to rise along with the annular component. Simultaneously, the motor 206 on the mounting plate inside the annular box 201 is activated. The output shaft of the motor 206 drives the drive gear to rotate. The drive gear meshes with the gear ring 202, causing the gear ring 202 to rotate inside the annular box 201. The gear ring 202 then meshes with the driven gear 205, which is rotatably mounted in an array inside the annular box 201, thereby driving the driven gear 205 to rotate synchronously. The driven gear 205 meshes with the toothed plates 203, which are slidably mounted in an array on the annular box 201, driving the toothed plates 203 along the outer surface of the annular box 201. The movable hole 2011 of the array slides, and the slider 231 at the bottom of the toothed plate 203 slides in the limiting groove at the bottom of the movable hole 2011, limiting and guiding the sliding direction of the toothed plate 203 to ensure that the toothed plate 203 moves smoothly. The arc-shaped positioning plate 204 at the end of the toothed plate 203 moves synchronously with the toothed plate 203, gradually approaching the ring component and fitting with the outer surface of the ring component to form an all-round, multi-point positioning, adapting to the contour shape of the ring component, increasing the positioning contact area, and applying positioning force synchronously from all sides to counteract the effects of inertia and gravity, and prevent the ring component from swaying during hoisting, moving and rotating.

[0049] Simultaneously, when the annular component rises together with the anti-sway mechanism 200, the pressure plates 105 arrayed on the bottom surface of the annular plate 101 will contact and apply pressure to the pressure-bearing portion 2071 of the bottom support plate 207 rotatably mounted on the bottom of the annular box 201. The pressure-bearing portion 2071 bends outward in an arc shape to facilitate the pressure of the pressure plate 105. The bottom support plate 207 rotates around the rotation axis between the pressure-bearing portion 2071 and the connecting portion 2072. The inclined portion 2073 adapts to the flared shape of the bottom of the annular box 201. After rotation, the U-shaped wide opening of the U-shaped portion 2074 guides the annular component so that it can adapt to the shape of the annular component. The ring component is positioned so that its bottom surface enters the U-shaped opening. The support wheel 2075 inside the U-shaped part 2074 contacts the bottom of the ring component and provides support. The diameter of the support wheel 2075 gradually decreases along its long axis and the support surface is horizontal. This not only prevents the ring component from swinging due to the deviation of the hoisting center of gravity, but also allows for rotation adjustment of the ring component, facilitating alignment before installation. The multi-point arc positioning and bottom array support form a dual stability, eliminating the need to manually switch the bottom positioning state and ensuring that the ring component always maintains a stable posture. This enables rapid and accurate alignment and significantly improves the installation efficiency of the ring component of the tokamak device.

[0050] In summary, this invention, through the design of the ring box and positioning plate structure, utilizes the flared opening at the bottom of the ring box to guide the annular component quickly and smoothly into the ring box, avoiding collisions between the component and the bottom of the ring box during hoisting and significantly improving initial alignment efficiency. Combined with the gear ring, driven gear, and gear plate transmission structure within the ring box, the arc-shaped positioning plate at the end of the gear plate can fit snugly against the outer surface of the annular component, forming an all-around, multi-point positioning system. This arc-shaped design adapts to the contour of the annular component, increasing the positioning contact area, and the array layout ensures that the positioning force acts synchronously on the component from all sides, effectively preventing the annular component of the tokamak device from swaying during hoisting, movement, and rotation, keeping the component stable at all times. This provides a core guarantee for rapid and accurate alignment, greatly improving the installation efficiency of the annular component of the tokamak device and solving the current problem of horizontal swaying of annular components due to uneven force and inertia.

[0051] This invention also designs a bottom support plate structure. The bottom support plate forms a linkage with the pressure plate on the bottom surface of the annular plate through the pressure-bearing part. When the annular component rises together with the anti-sway mechanism, the pressure plate naturally squeezes the arc-shaped pressure-bearing part of the bottom support plate, driving the bottom support plate to automatically rotate and unfold around the rotation axis. When the hoisting is completed or the device is lowered, the pressure is released and the bottom support plate can naturally reset and retract under gravity. This design can realize the automatic switching between the supported state and the retracted state without additional manual operation or complex control programs, which greatly simplifies the operation process and avoids the efficiency reduction or operation error that may be caused by manual intervention.

[0052] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sway-prevention and stabilizing device for rotating and hoisting annular components of a tokamak device, characterized in that, The device includes an installation mechanism and an anti-sway mechanism. The installation mechanism includes an annular plate with symmetrically arranged fixing rods. Each fixing rod has a fixing plate connected to the crane's running mechanism. Hydraulic equipment is symmetrically arranged on the annular plate. The anti-sway mechanism includes an annular box located at the end of the hydraulic rod of the hydraulic equipment. A gear ring is rotatably installed inside the annular box. Gear plates are slidably mounted in an array on the annular box. An arc-shaped positioning plate for positioning the annular components of the tokamak device is located at the end of each gear plate. Driven gears meshing with the gear plates and gear ring are rotatably mounted in an array inside the annular box. A bottom support plate is rotatably mounted in an array at the bottom of the annular box. The bottom support plate includes a pressure-bearing part, a connecting part, an inclined part, and a U-shaped part along its long axis. A rotating shaft for the bottom support plate is located between the pressure-bearing part and the connecting part. The U-shaped part has a gradually widening opening. A support wheel is located inside the U-shaped opening of the U-shaped part. The diameter of the support wheel gradually decreases along its long axis. Pressure plates corresponding to the bottom support plate are arranged in an array on the bottom surface of the annular plate. The pressure plates cooperate with the pressure-bearing part of the bottom support plate.

2. The tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 1, characterized in that, The ring box has openings at both the top and bottom, with the bottom opening being funnel-shaped.

3. The tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 1, characterized in that, The outer surface of the ring box is arrayed with movable holes, and the bottom of the movable holes is provided with a limiting groove. The toothed plate is located in the movable holes, and the bottom of the toothed plate is provided with a slider located in the limiting groove.

4. The anti-sway stabilizing device for rotating and hoisting annular components of a tokamak device according to claim 1, characterized in that, The pressure-bearing part bends outward in an arc shape.

5. A tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 1, characterized in that, The bottom support plate is connected and fixed to the ring box via the rotation axis between the pressure part and the connecting part.

6. The anti-sway stabilizing device for rotating and hoisting annular components of a tokamak device according to claim 1, characterized in that, An installation plate is installed inside the ring box, and a motor is installed on the installation plate. A drive gear is installed at the end of the output shaft of the motor, and the drive gear meshes with the gear ring.

7. A tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 2, characterized in that, The inclined section is adapted to the flared opening at the bottom of the ring box.

8. A tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 1, characterized in that, Two fixed rods and two hydraulic devices are evenly distributed on the annular plate.

9. A tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 1, characterized in that, The arc-shaped positioning plate moves synchronously with the toothed plate and gradually approaches the annular component, fitting against the outer surface of the annular component.

10. A tokamak device annular component rotation hoisting anti-sway stabilizing device according to claim 1, characterized in that, The pressure plate contacts the pressure-bearing part of the bottom support plate and applies pressure, driving the bottom support plate to rotate around the rotation axis, so that the U-shaped part guides the ring component and the bottom surface of the ring component enters the U-shaped opening, and the support wheel contacts the bottom of the ring component and provides support.

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