A tool for a toroidal field magnet set for a nuclear fusion device

Abstract

The invention discloses a tool for a toroidal field magnet set for a nuclear fusion device, belonging to a toroidal field magnet set tool, wherein the fixed tool comprises an annular guide rail coaxially mounted on the inner wall of a host hall, the annular guide rail is coaxially arranged with a central column erected in the host hall, a plurality of vacuum chamber hangers with one end mounted on the inner wall of the host hall are arranged in an inner annular array of the annular guide rail, the bottom end of the vacuum chamber hanger is used to hang the vacuum chamber sector to the corresponding welding assembly position; a radial beam arranged radially along the annular guide rail is also provided above the vacuum chamber hanger, one end of the radial beam is rotatably mounted in the top bearing of the central column, and the other end is mounted on the annular guide rail through a tail drive system, and can move in a circle along the top surface of the annular guide rail with the center of the central column, so that the toroidal field magnet hoisted below the radial beam is sleeved on the outside of the corresponding vacuum chamber sector. The invention can greatly improve the assembly efficiency and positioning accuracy of the toroidal field magnet of the nuclear fusion device.

Description

Technical Field

[0001] The invention relates to a toroidal field magnet set tool, in particular to a tool used for the toroidal field magnet set of a nuclear fusion device. Background Art

[0002] Energy is one of the most serious problems that all countries have to face at this stage. Nuclear fusion energy is a new type of clean energy, and controlled nuclear fusion is an important field that countries around the world are actively researching and exploring. Controlled nuclear fusion uses a fusion device called Tokamak to magnetically confine high-temperature plasma, causing the plasma to undergo a fusion reaction in a vacuum chamber, releasing huge amounts of energy, which is then converted into energy and eventually used by humans. The fusion device is composed of thousands of parts, the core of which is the superconducting magnet system and the vacuum chamber system. The superconducting magnet system is equipped with a central solenoid magnet, a toroidal field magnet, and a poloidal field magnet. The toroidal magnetic field generated by the toroidal field magnet is used to ensure the macroscopic overall stability of the plasma, and the toroidal magnetic field and the poloidal magnetic field generated by the plasma current are used to confine the plasma.

[0003] The shape of the toroidal field magnet is similar to a D-shaped coil, with a vacuum chamber wrapped inside. When welding and assembling it, the assembly process of the toroidal field magnet is very complicated, and the gap between the sectors of the vacuum chamber is very narrow. How to transport the toroidal field magnet to be installed to the nominal position to fit the vacuum chamber sector, and then complete the precise positioning of each other for welding and fixing, is a key step in the ring closing of the nuclear fusion device.

[0004] At present, in the process of assembling the toroidal field magnets of some nuclear fusion devices, a circular crane is used for assembly. The toroidal field magnets are hoisted to the main engine area of ​​the nuclear fusion device by a crane, and the toroidal field magnet load is transferred to the circular crane by changing the hook. Finally, the toroidal field magnets are rotated to a suitable angle by the circular crane and assembled from the outside of the vacuum chamber to the nominal position. The assembly precision of the circular crane is high but the efficiency is low. The toroidal field magnets need to rotate at a large angle, and there is a load transfer process during the assembly process, which is not safe. In addition, the design cycle of the circular crane is long and the production cost is high. Usually, the nuclear fusion device pre-assembles the toroidal field magnets and the vacuum chamber, as well as the vacuum chamber cold shield into an integral component offline through the sector pre-assembly tooling, and then hoisted to the main equipment installation area through the corresponding tooling. After the single sector is transferred to the area to be installed, other auxiliary tooling is still required to complete the final placement of the entire sector component. During the assembly process of the nuclear fusion device, if all integral components are used for installation, the delivery time of each component is relatively strict. The sub-components corresponding to the same component must all be pre-installed before assembly work can be carried out. The assembly cycle is long and the efficiency is low. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a tooling for the toroidal field magnet assembly of a nuclear fusion device. The tooling can provide a toroidal rotation assembly function for the toroidal field magnet, and can also provide displacement in multiple directions for the toroidal field magnet during the final positioning process, thereby improving the assembly efficiency and positioning accuracy of the toroidal field magnet of the nuclear fusion device.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a tooling for a toroidal field magnet set of a nuclear fusion device, comprising a fixed tooling for placing the toroidal field magnets, the fixed tooling comprising an annular guide rail coaxially mounted on the inner wall of a main engine hall, the annular guide rail being coaxially arranged with a central column erected in the main engine hall, a plurality of vacuum chamber hoists mounted on the inner wall of the main engine hall being arranged in an inner annular array of the annular guide rail, the bottom end of the vacuum chamber hoist being used for hoisting a vacuum chamber sector to a corresponding welding assembly position; A radial beam is also provided above the vacuum chamber lifting device and is radially arranged along the annular guide rail. One end of the radial beam is rotatably mounted in the top bearing of the center column, and the other end is mounted on the annular guide rail through a tail drive system. The radial beam can move in a circle along the top surface of the annular guide rail with the center of the center column as the center, so as to allow the annular field magnet hoisted below the radial beam to be placed on the outside of the corresponding vacuum chamber sector, so as to prepare for welding and assembly of the two.

[0007] Furthermore, the annular track includes a plurality of arc-shaped track segments arranged in a circular array, each arc-shaped track segment is mounted on a supporting corbel fixed on the inner wall of the main engine hall, a corresponding arc-shaped track segment is fixedly mounted above two adjacent supporting corbels, and the arc-shaped track segment is connected to two adjacent supporting corbels at its two ends.

[0008] Furthermore, the vacuum chamber hanger includes a crossbeam and a longitudinal beam, wherein the crossbeam is fixedly installed across two adjacent supporting brackets, and the crossbeam is fixedly connected to one end of the longitudinal beam radially arranged along the annular guide rail, and the other end of the longitudinal beam is fixed to the central column, and a plurality of first suspension rods are vertically fixed below the longitudinal beam, and the bottom end of the first suspension rod is used for detachably fixing to the vacuum chamber sector.

[0009] Furthermore, a centering shaft is installed perpendicularly to one end of the radial beam, and the centering shaft is installed in the top bearing for coaxial rotation; a mounting seat of the tail drive system is fixed to the lower surface of the other end of the radial beam, and the bottom of the mounting seat has a Π-shaped mounting groove, and a pair of load-bearing rollers are rotatably installed in the mounting groove, and the wheel axle of the load-bearing roller is transmission-connected to the output shaft of a reducer fixed to the side of the mounting seat, so that when the reducer is started, the load-bearing roller moves in a circle on the top surface of the annular guide rail.

[0010] Furthermore, a steel rail used for heavy-load railway lines is fixed to the top end surface of the annular guide rail, the cross-section of the steel rail is I-shaped and is coaxially arranged with the center column, and the top end surface of the steel rail is in rolling contact with the load-bearing roller; two limiting rollers are relatively provided at the groove ends of the mounting groove, and the limiting roller is located below between the two load-bearing rollers and in rolling contact with the upper side wall of the steel rail.

[0011] Furthermore, a vertical alignment box is slidably provided on the radial beam, and a sliding block is vertically slidably installed on each of the two opposite sides inside the vertical alignment box. A bearing is installed in the center of the sliding block, and a supporting tube is rotatably installed between the two bearings. A U-shaped bolt is sleeved on the supporting tube, and the U-shaped bolt is connected to a vertically arranged second suspension rod, and the bottom end of the second suspension rod is used to connect to the annular magnetic field body; at least two Z-direction jacks for supporting the two sliding blocks are also provided in the vertical alignment box.

[0012] Furthermore, a transmission block is connected to the outer side wall of the vertical alignment box, the bottom end surface of the transmission block is flush with the bottom end surface of the vertical alignment box, a Y-direction jack is provided opposite to the free end of the transmission block away from the vertical alignment box, and an X-direction jack is provided on each of the two opposite sides of the free end; the vertical alignment box is provided with two spaced-apart vertical alignment boxes, the two vertical alignment boxes are connected together by a connecting beam, and the connecting beam is slidably arranged on the surface of the radial beam.

[0013] Furthermore, the transmission block includes a rectangular block and a trapezoidal block which are integrally arranged, one side of the rectangular block overlaps with the smaller bottom surface of the trapezoidal block as a whole, the two X-direction jacks are used to respectively contact and connect with the two opposite side surfaces of the rectangular block, and the side of the rectangular block facing away from the trapezoidal block is used to contact and connect with the Y-direction jack, all jacks always keep contact and connect with the rectangular block of the transmission block at the same time, and when the jack in any direction is telescopically moved, the jacks in other directions shall not be telescopically moved; among the two relatively arranged X-direction jacks, the extension of one of the X-direction jacks is equal to the contraction of the other X-direction jack, and among the two relatively arranged Y-direction jacks, the extension of one of the Y-direction jacks is equal to the contraction of the other Y-direction jack.

[0014] Furthermore, all jacks are hydraulic jacks, which include a hydraulic cylinder, a piston column, and a pressure spring. The piston column is axially slidably installed in the hydraulic cylinder, and one end of the piston column extends out of one end of the hydraulic cylinder. The other end of the hydraulic cylinder has an interface connected to a high-pressure pipeline. The pressure spring is sleeved between the inner wall of one end of the hydraulic cylinder and the piston plate of the piston rod; each high-pressure pipeline connected to the hydraulic cylinder is respectively provided with a flow solenoid valve, and the flow solenoid valve controls the input / output of a set amount of hydraulic oil into the corresponding hydraulic cylinder; for two hydraulic jacks arranged opposite to each other, hydraulic oil is input into the hydraulic jack in the extended state, and hydraulic oil is output from the hydraulic jack in the contracted state, and the amount of hydraulic oil input is equal to the amount of hydraulic oil output.

[0015] Furthermore, the interfaces of the two X-direction jacks on the same side are connected together by a first high-pressure pipeline with a T-shaped layout, and the interfaces of the two Y-direction jacks arranged opposite to each other are connected together by a second high-pressure pipeline with a [-shaped layout. The first high-pressure pipeline, the second high-pressure pipeline, and the third high-pressure pipeline connected to the hydraulic cylinder of the Z-direction jack are all connected to a regulating valve; the regulating valve of the present invention includes a valve body and a rotating part installed in the valve body, the interior of the valve body has a cylindrical cavity, and the outer wall has a circular array with three oil pipes, and the three oil pipes are respectively connected to the three high-pressure pipelines; the rotating part includes a hollow column core, the outer wall of the column core has a circular array with three connecting columns, and one of the connecting columns is a tubular structure connected to the hollow structure of the column core, and one end of the column core is rotatably and sealingly extended out of one end of the valve body , fix a knob, and after the other end of the column core rotates and seals to extend out of the other end of the valve body, a hydraulic oil pump-in main pipe is coaxially fixed, so that every time the knob is rotated 120°, only one high-pressure pipeline is connected to the hydraulic oil pump-in main pipe; a jumper arm is fixed between each pair of jacks arranged opposite to each other, and the jumper arm rigidly connects the extended ends of the piston rods of the two jacks together, so that the hydraulic oil in the jack in a contracted state is squeezed out by the jumper arm pushing its piston rod back, and the corresponding high-pressure pipelines are closed when the respective flow solenoid valves detect that the outflow and inflow flows are equal to the set values.

[0016] The present invention provides a tooling for the toroidal field magnet assembly of a nuclear fusion device, which has the following beneficial effects: in order to ensure that the nuclear fusion device is assembled quickly and accurately in preparation for welding and fixing, the present invention hoists the toroidal field magnet to be installed to the corresponding installation position, first completes the corresponding toroidal assembly work in the main engine hall of the main engine area, and finally accurately positions the toroidal field magnet, while providing sufficient degrees of freedom for position adjustment of the toroidal field magnet, thereby improving assembly efficiency, having a simple structure, low production cost, and a short cycle.

[0017] Specifically, in the present invention, a fixed fixture, an adjustment fixture formed by radial quantities, and an annular guide rail are combined together, the structure is simple, easy to process and manufacture, the main body can be welded with steel, the structure has high strength and large load, and can complete the hoisting and transportation of the toroidal field magnet; driven by the tail drive system at the tail of the radial beam, the toroidal field magnet can be quickly installed in an annular manner. At the same time, with the cooperation of multiple structures such as the vertical alignment box, multiple azimuth jacks, and the inner and outer sides of the toroidal field magnet, the assembly of the toroidal field magnet of the nuclear fusion device is provided with the ability to move in multiple directions, and at the same time, the position adjustment action of the toroidal field magnet assembly can be assisted, effectively improving the assembly efficiency of the toroidal field magnet of the nuclear fusion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a partial cross-sectional structural diagram of the tooling when the toroidal field magnet is mounted; Figure 2 For the general Figure 1 Schematic diagram of the structure after the vacuum chamber sectors and toroidal field magnets are removed; Figure 3 This is a partial three-dimensional diagram of the top of the tooling; Figure 4 It is a three-dimensional diagram of the radial beam and its accessory structure; Figure 5 It is the matching structure diagram of radial beam and annular guide rail; Figure 6 for Figure 5 A magnified view of the structure at center A; Figure 7 This is a diagram of the coordination structure between the tail drive system and the annular guide rail; Figure 8 A control schematic diagram of each hydraulic jack; Fig. 9 It is a structural diagram of a hydraulic jack; Fig.10 A cross-sectional view of a regulating valve; Fig.11 A specific structural diagram of the jumper arm.

[0019] In the figure: radial beam 1, handrail 2, stepping pedal 3, tail drive system 4, mounting seat 401, load-bearing roller 402, reducer 403, limit roller 404, annular guide rail 5, arc track segment 501, vertical alignment box 6, sliding block 7, hydraulic jack 8, hydraulic cylinder 801, piston rod 802, pressure spring 803, interface 804, upper U-bolt 9, second suspension rod 10, lower U-bolt 11, lifting assembly 12, main engine hall 13, Vacuum chamber sector 14, vacuum chamber hanger 15, central column 16, toroidal field magnet 17, supporting corbel 18, cross beam 19, first hanger 20, connecting beam 21, rectangular block 22, centering shaft 23, bearing tube 24, X-direction jack 25, Y-direction jack 26, rail 27, flow solenoid valve 28, first high-pressure pipeline 29, second high-pressure pipeline 30, valve body 31, column core 32, connecting column 33, oil pipeline 34, knob 35, jumper arm 36. DETAILED DESCRIPTION

[0020] This specification will clearly and completely express the technical solutions in the following examples based on the drawings of the embodiments of the present invention. The implementation methods described in this specification are only some of the embodiments of the present invention, not all of them. All other embodiments extended and inspired by those skilled in the art based on these embodiments in this application without creative work should fall within the scope of protection of the present invention.

[0021] like Figure 1-Figure 2The tooling shown is used for the toroidal field magnet set of a nuclear fusion device, which is mainly used to weld and assemble the local and peripheral auxiliary connecting elements of the toroidal field magnet and the vacuum chamber sector after positioning, so as to form a complete nuclear fusion device. Specifically, the tooling includes a fixed tooling for placing the toroidal field magnet 17, and the fixed tooling includes an annular guide rail 5 coaxially installed on the inner wall of the main engine hall 13, and the annular guide rail 5 is coaxially arranged with the central column 16 erected in the main engine hall 13. In addition, in this embodiment, in the inner area of ​​the annular guide rail 5, a plurality of groups of vacuum chamber hangers 15 are arranged in an annular array, and these vacuum chamber hangers 15 surround the central column 16, one end of which is fixedly connected to the inside of the main engine hall 13, and the other end is fixedly connected to the central column 16. The vacuum chamber hanger 15 is mainly used to hang the vacuum chamber sector 14 to the corresponding welding assembly position, so that the toroidal field magnet 17 that performs a circular motion later is just sleeved on its outside. More specifically, above the vacuum chamber lifting device 15, there is also a radial beam 1 arranged radially along the annular guide rail 5. This radial beam 1 is a movable beam capable of circular motion, so as to fit the annular field magnet 17 on the outside of the vacuum chamber sector 14 that has reached the predetermined position. In practice, one end of the radial beam 1 is rotatably mounted in the top bearing of the center column 16, that is, it rotates around the center column 16, and the other end is mounted on the annular guide rail 5 through the tail drive system 4, and can move in a circle along the top surface of the annular guide rail 5 with the center of the center column 16 as the center of the circle, so that the annular field magnet 17 hoisted below the radial beam 1 can be quickly fitted on the outside of the corresponding vacuum chamber sector 14, completing the fitting positioning before welding assembly.

[0022] As a specific implementation structure, such as Figure 2-Figure 3 The annular track specifically includes a plurality of arc-shaped track segments 501 arranged in an annular array, each arc-shaped track segment 501 is mounted on a supporting bracket 18 fixed on the inner wall of the main engine hall 13, and one end of the vacuum chamber hanger 15 is also fixed on the supporting bracket 18. Specifically, a corresponding arc-shaped track segment 501 is fixedly mounted above two adjacent supporting brackets 18, and the arc-shaped track segment 501 is connected to two adjacent supporting brackets 18 at both ends thereof, so that the arc-shaped track segment 501 is installed across the two supporting brackets 18, forming a circular track structure that is not necessarily continuous.

[0023] like Figure 1-Figure 3In the structure shown, the vacuum chamber hanger 15 used includes a crossbeam 19 and a longitudinal beam, which are T-shaped structures. The crossbeam 19 is fixedly installed on two adjacent supporting brackets 18 in a cross-sectional manner. The crossbeam 19 is located at the inner lower part of the above-mentioned annular guide rail 5, and the crossbeam 19 is fixedly connected to one end of the longitudinal beam radially arranged along the annular guide rail 5, and the other end of the longitudinal beam is fixed to the central column 16 to achieve the fixed installation of the vacuum chamber hanger 15. Specifically, a plurality of first hangers 20 are vertically fixed below the longitudinal beam, and the bottom end of the first hanger 20 is used to be detachably fixed to the corresponding part of the vacuum chamber sector 14 by bolt connection or the like, so that the vacuum chamber sector 14 is hoisted to the designated position by the vacuum chamber hanger 15.

[0024] In the specific manufacturing process, a centering shaft 23 is installed perpendicularly to one end of the radial beam 1. The centering shaft 23 is installed in the top bearing in a coaxial rotational manner to realize the rotation of the radial beam 1 around the center column 16. On the lower surface of the other end of the radial beam 1, as shown in FIG. Figure 7 As shown, a mounting base 401 of a tail drive system 4 is fixed, and a Π-shaped mounting groove is specially fixedly installed at the bottom of the mounting base 401, with the groove opening of the mounting groove facing downward, and a pair of load-bearing rollers 402 are rotatably installed in the mounting groove. The axle of the load-bearing roller 402 needs to be connected to the output shaft of a reducer 403 fixed to the side of the mounting base 401 to drive the load-bearing wheel to roll, that is, when the reducer 403 equipped with a motor is started, the load-bearing roller 402 moves in a circle on the top surface of the annular guide rail 5, and then rotates with the corresponding annular field magnet 17 and is mounted on the vacuum chamber sector 14.

[0025] As one of the specific implementation details, such as Figure 7 As shown, the top end surface of the annular guide rail 5 in this embodiment is fixed with a steel rail 27 used in a heavy-load railway line, which has a strong bearing capacity. The cross section of the steel rail 27 is an I-shaped, and the axis where the center of the curved path of the steel rail 27 is located is coaxially arranged with the center column 16, and the top end surface of the steel rail 27 is in rolling contact with the load-bearing roller 402. In addition, two limiting rollers 404 are relatively arranged at the notch ends of the mounting groove, and the two limiting rollers 404 are located below between the two load-bearing rollers 402, and are in rolling contact with the upper side wall of the steel rail 27, thereby guiding the tail drive system 4 and the end of the radial beam 1 to make a circular motion on the annular guide rail 5.

[0026] like Figure 4-Figure 6In the structure shown, the radial beam 1 is also provided with a vertical alignment box 6 in a sliding manner, that is, the vertical alignment box 6 can slide on the beam box surface of the radial beam 1, and a sliding block 7 is vertically slidably installed on each of the two opposite sides inside the vertical alignment box 6, and a bearing is installed in the center of the sliding block 7. A bearing tube 24 is rotatably installed between the two bearings, that is, the bearing tube 24 is lifted or lowered by two jacks located below the sliding block 7. During manufacturing, an upper U-bolt is sleeved on the bearing tube 24, and the upper U-bolt is connected to the vertically arranged second suspension rod 10. The U-bolt is mainly used to facilitate installation and improve the load-bearing capacity. The bottom end of the second suspension rod 10 is used to connect to the annular magnetic field body, as shown in FIG. Figure 5 As shown, the open end of the lower U-bolt 11 is hinged on the corresponding lifting assembly 12, and the lifting assembly 12 is a connecting element designed according to the adaptability of the annular field magnet 17, which is convenient for fixing the U-bolt to the annular field magnet 17. In addition, during the manufacturing process, as mentioned above, at least two Z-direction jacks for supporting the two sliding blocks 7 need to be provided in the vertical alignment box 6 to realize the lifting and lowering of the second suspension rod 10.

[0027] More specifically, if Figure 4 As shown, a transmission block is also connected to the outer wall of the vertical alignment box 6 to drive the vertical alignment box 6. The bottom end surface of the transmission block is flush with the bottom end surface of the vertical alignment box 6, which is convenient for sliding on the beam box surface of the radial beam 1 to adjust the position. Figure 4 A Y-direction jack 26 is provided at the free end of the transmission block away from the vertical alignment box, that is, Figure 4 Among the several jacks, two opposite sides near the free end are each provided with an X-direction jack 25, and the two jacks located in the length direction of the radial beam 1 are Y-direction jacks 26. Specifically in practice, the vertical alignment box 6 is provided with two spaced apart from each other, each connected to a second hoisting device to connect different parts of the toroidal field magnet 17, stably realizing hoisting and transportation. To improve firmness and reliability, the two vertical alignment boxes 6 are connected together by a connecting beam 21, and the connecting beam 21 is slidably arranged on the surface of the radial beam 1, so that it slides on the surface of the radial beam 1 together with the vertical alignment box 6, and then the position of the toroidal field magnet 17 is finely adjusted, so that it is more accurately mounted on the vacuum chamber sector 14.

[0028] Continue reading Figure 4The transmission block in this embodiment includes a rectangular block 22 and a trapezoidal block which are integrally arranged, wherein one side of the rectangular block 22 overlaps with the smaller bottom surface of the trapezoidal block as a whole, and two X-direction jacks 25 are used to contact and engage with two opposite side surfaces of the rectangular block 22, respectively, to push the rectangular block 22 to move, and then push the vertical alignment box 6 and the annular field magnet 17 hoisted below to move. In addition, the side of the rectangular block 22 facing away from the trapezoidal block is used to contact and engage with the Y-direction jack 26, pushing the annular field magnet 17 to move along the length direction of the radial beam 1. In the above structural design, it is necessary to ensure that all jacks are always in contact with the rectangular block 22 of the transmission block at the same time to avoid that if one of them is not in contact, the vertical alignment box 6 may move in the corresponding direction. Moreover, when the jacks in any direction are telescopically moved, the jacks in the other directions must not be telescopically moved, otherwise the state of the displacement adjustment in the current direction may be seriously interfered with. For example, when the vertical alignment box 6 is moved along the X direction, if the Y-direction jack 26 does not contact the end face of the rectangular block 22, it may cause the vertical alignment box 6 to move slightly in the Y direction when moving in the X direction, resulting in inaccurate position adjustment, or when the Z axis also moves together, due to the heavy weight, it may cause vibration, which will also affect the displacement adjustment in the current direction. Therefore, for this heavy lifting, this embodiment uses this simple and ingenious way to achieve independent adjustment of each direction one by one. Moreover, in the present design, it is also necessary to make the extension of one of the two relatively disposed X-direction jacks 25 equal to the contraction of the other X-direction jack 25, and to make the extension of one of the two relatively disposed Y-direction jacks 26 equal to the contraction of the other Y-direction jack 26. In this way, the extension and contraction are always kept in sync, thereby ensuring that the vertical alignment box always maintains the clamping positioning in the corresponding direction during the translation process, and the movement control is more precise.

[0029] As a recommended design solution, Figure 8 As shown, all jacks are hydraulic jacks 8, such as Fig. 9As shown in the schematic diagram, the hydraulic jack 8 used includes a hydraulic cylinder, a piston column, and a pressure spring 803. The piston column is axially slidably installed in the hydraulic cylinder, and one end of the piston column extends out of one end of the hydraulic cylinder. The other end of the hydraulic cylinder has an interface 804 connected to the high-pressure pipeline. The pressure spring 803 is sleeved between the inner wall of one end of the hydraulic cylinder and the piston plate of the piston rod 802, and is compressed when the hydraulic oil pushes the piston rod 802. In addition, a flow solenoid valve 28 is provided on the high-pressure pipeline connected to each hydraulic cylinder. The flow solenoid valve 28 controls the input / output of a set amount of hydraulic oil into the corresponding hydraulic cylinder, that is, the corresponding extension and shortening of the hydraulic jack 8 is realized. Among them, for the two hydraulic jacks 8 arranged opposite to each other, the hydraulic jack 8 in the extended state is input with hydraulic oil, and the hydraulic jack 8 in the contracted state is output with hydraulic oil, and the amount of hydraulic oil input is equal to the amount of hydraulic oil output. In this way, by equal control of the amount of hydraulic oil, it can be ensured that the length of one jack is extended is the same as the length of the other jack, so as to maintain the same degree of contact with the rectangular block 22, thereby preventing the rectangular block 22 from shaking under the restriction of the jack and affecting the current displacement adjustment of some other direction.

[0030] More specifically, in this embodiment, if Figure 8 The interfaces 804 of the two X-direction jacks 25 on the same side are connected together through a first high-pressure pipeline 29 arranged in a T-shape, and the interfaces 804 of the two Y-direction jacks 26 arranged opposite to each other are connected together through a second high-pressure pipeline 30 arranged in a [ ] shape. The first high-pressure pipeline 29 and the second high-pressure pipeline 30, as well as the third high-pressure pipeline connected to the hydraulic cylinder of the Z-direction jack, are all connected to the same regulating valve, and the three high-pressure pipelines are controlled by the regulating valve. Specifically, refer to Fig. 9The regulating valve here includes a valve body 31 and a rotating part installed in the valve body 31. The valve body 31 has a cylindrical cavity inside for injecting hydraulic oil, and the outer wall of the valve body 31 has three oil delivery pipes 34 in an annular array. The three oil delivery pipes 34 are respectively connected to three high-pressure pipelines so that hydraulic oil can be input to the corresponding high-pressure pipelines. Among them, the rotating part includes a hollow column core 32, and the outer wall of the column core 32 has three connecting columns 33 in an annular array, and one of the connecting columns 33 is a tubular structure connected to the hollow structure of the column core 32. After one end of the column core 32 is rotated and sealed to extend out of one end of the valve body 31, a knob 35 is fixed to facilitate rotating the column core 32 through the knob 35. After the other end of the column core 32 is rotated and sealed to extend out of the other end of the valve body 31, a hydraulic oil pumping main pipe (not shown in the figure) is coaxially fixed, and the hydraulic oil pumping main pipe is connected to the oil tank. During operation, when the knob 35 is rotated 120°, only one high-pressure pipeline is connected to the hydraulic oil pump main pipe, so that the jack can work in only one direction at a time. In addition, more specifically, a jumper arm 36 is fixed between each pair of jacks arranged opposite to each other. For example, the jumper arm 36 between the two X-direction jacks 25 has a structure as shown in FIG. Fig.11 As shown. The jumper arm 36 rigidly connects the extended ends of the piston rods 802 of the two jacks together, and then makes the two piston rods 802 move synchronously, so that the hydraulic oil in the jack in the contracted state can be pushed back by the jumper arm 36 to push its piston rod 802 back and squeezed out, and when the flow solenoid valves 28 of the corresponding high-pressure pipelines detect the outflow and inflow flow, they are closed when they are equal to the set value. In this way, on the one hand, the jumper arm 36 directly ensures that the movement of the two XY-direction jacks 2625 set in the same direction is the same, and on the other hand, the hydraulic oil reflux control structure is simplified, and it is ensured that when the other piston rod 802 is driven by the jumper arm 36 and retreats to the predetermined position in its hydraulic cylinder, the outflow of hydraulic oil in the hydraulic cylinder is just enough to make the hydraulic oil retained in the hydraulic cylinder fully fill the area between the piston and the hydraulic cylinder at this time, so as to better ensure the consistency of the telescopic length of the two piston rods 802.

[0031] It should be explained here that, in this specification, terms such as first and second are only used to distinguish one feature from another, and do not mean that there is a certain relationship or order between these technical features. The terms "including" and "comprising" refer to the inclusion of one or some technical means or features, specifically meaning that there are other existing or non-existing technical features that have not been included. The discussion in the above embodiments is only a representative example for the present invention, and is by no means the only restrictive constraint feature. A person of ordinary skill in the art should understand that, without departing from the technical content recorded in all the claims of this application, some simple substitutions and modifications can be made, thereby changing or becoming equivalent to other specific embodiments and application scenarios. However, no matter how the adaptability is changed, these embodiments will inevitably fall within the scope of protection of the present invention.

Claims

1. A tool for a toroidal field magnet set for a nuclear fusion device, comprising a fixing tool for placing a toroidal field magnet (17), characterized in that: The fixed tooling comprises an annular guide rail (5) coaxially mounted on the inner wall of the main machine hall (13), the annular guide rail (5) being coaxially arranged with a central column (16) erected in the main machine hall (13), and a plurality of groups of vacuum chamber hangers (15) having one end fixed to the inner wall of the main machine hall (13) being arranged in an annular array in the inner area of ​​the annular guide rail (5), the vacuum chamber hangers (15) being used to hang the vacuum chamber sectors (14) to corresponding welding assembly positions; A radial beam (1) is also provided above the vacuum chamber lifting device (15) and is arranged radially along the annular guide rail (5). One end of the radial beam (1) is rotatably mounted in a top bearing of a central column (16), and the other end of the radial beam (1) is mounted on the annular guide rail (5) through a tail drive system (4). The radial beam (1) can move in a circle along the top surface of the annular guide rail (5) with the center of the central column (16) as the center of the circle, so as to cover the annular field magnet (17) suspended below the radial beam (1) on the outside of the corresponding vacuum chamber sector (14) for welding.

2. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 1, characterized in that: The circular track comprises a plurality of arc-shaped track segments (501) arranged in an annular array, each arc-shaped track segment (501) being mounted on a supporting bracket (18) fixed on the inner wall of the main engine hall (13), a corresponding arc-shaped track segment (501) being fixedly mounted above two adjacent supporting brackets (18), and the arc-shaped track segment (501) is connected to two adjacent supporting brackets (18) at its two ends.

3. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 2, characterized in that: The vacuum chamber hanger (15) includes a cross beam (19) and a longitudinal beam, wherein the cross beam (19) is fixedly installed across two adjacent supporting brackets (18), and the cross beam (19) is fixedly connected to one end of the longitudinal beam radially arranged along the annular guide rail (5), and the other end of the longitudinal beam is fixed to the central column (16), and a plurality of first suspension rods (20) are vertically fixed below the longitudinal beam, and the bottom end of the first suspension rod (20) is used for detachably fixing to the vacuum chamber sector (14).

4. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 1, characterized in that: A centering shaft (23) is installed perpendicularly to one end of the radial beam (1), and the centering shaft (23) is installed in the top bearing in a coaxial rotational manner; a mounting seat (401) of the tail drive system (4) is fixed to the lower surface of the other end of the radial beam (1), and the bottom of the mounting seat (401) has a Π-shaped mounting groove, and a pair of load-bearing rollers (402) are rotatably installed in the mounting groove, and the wheel axles of the load-bearing rollers (402) are drivingly connected to the output shaft of a reducer (403) fixed to the side of the mounting seat (401), so that when the reducer (403) is started, the load-bearing rollers (402) move in a circle on the top surface of the annular guide rail (5).

5. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 4, characterized in that: A steel rail (27) used in a heavy-load railway line is fixed to the top end surface of the annular guide rail (5); the cross section of the steel rail (27) is I-shaped and is coaxially arranged with the central column (16); the top end surface of the steel rail (27) is in rolling contact with the load-bearing roller (402); two limiting rollers (404) are arranged opposite to each other at the groove ends of the installation groove; the limiting rollers (404) are located below between the two load-bearing rollers (402) and are in rolling contact with the upper side wall of the steel rail (27).

6. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 4, characterized in that: The radial beam (1) is also provided with a vertical alignment box (6) in a sliding manner. A sliding block (7) is vertically slidably installed on each of the two opposite sides inside the vertical alignment box (6). A bearing is installed in the center of the sliding block (7). A supporting tube (24) is rotatably installed between the two bearings. A U-shaped bolt is sleeved on the supporting tube (24). The U-shaped bolt is connected to a vertically arranged second suspension rod (10). The bottom end of the second suspension rod (10) is used to connect to a toroidal magnetic field body. At least two Z-direction jacks for supporting the two sliding blocks (7) are also provided in the vertical alignment box (6).

7. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 6, characterized in that: A transmission block is also connected to the outer side wall of the vertical alignment box (6), the bottom end surface of the transmission block is flush with the bottom end surface of the vertical alignment box (6), a Y-direction jack (26) is arranged opposite to the free end of the transmission block away from the vertical alignment box, and an X-direction jack (25) is respectively arranged on two opposite sides of the free end; the vertical alignment box (6) is provided with two spaced-apart vertical alignment boxes (6), the two vertical alignment boxes (6) are connected together by a connecting beam (21), and the connecting beam (21) is arranged on the surface of the radial beam (1) in a sliding manner.

8. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 7, characterized in that: The transmission block comprises a rectangular block (22) and a trapezoidal block which are integrally arranged. One side of the rectangular block (22) overlaps with the smaller bottom surface of the trapezoidal block to form an integral whole. The two X-direction jacks (25) are used to respectively contact and connect with the two opposite side surfaces of the rectangular block (22). The side of the rectangular block (22) facing away from the trapezoidal block is used to contact and connect with the Y-direction jack (26). All jacks are always in contact and connect with the rectangular block (22) of the transmission block at the same time. When the jack in any direction is telescopically moved, the jacks in other directions are not allowed to telescopically move. Among the two X-direction jacks (25) arranged oppositely, the extension amount of one X-direction jack (25) is equal to the contraction amount of the other X-direction jack (25). Among the two Y-direction jacks (26) arranged oppositely, the extension amount of one Y-direction jack (26) is equal to the contraction amount of the other Y-direction jack (26).

9. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 8, characterized in that: All jacks are hydraulic jacks (8), and the hydraulic jacks (8) include a hydraulic cylinder, a piston rod, and a pressure spring (803). The piston rod is axially slidably mounted in the hydraulic cylinder, and one end of the piston rod extends out of one end of the hydraulic cylinder. The other end of the hydraulic cylinder has an interface (804) connected to a high-pressure pipeline. The pressure spring (803) is sleeved between the inner wall of one end of the hydraulic cylinder and the piston plate of the piston rod (802); A flow solenoid valve (28) is provided on the high-pressure pipeline connected to each hydraulic cylinder, and the flow solenoid valve (28) controls the input / output of a set amount of hydraulic oil into the corresponding hydraulic cylinder; For the two hydraulic jacks (8) arranged opposite to each other, the hydraulic jack (8) in the extended state is supplied with hydraulic oil, and the hydraulic jack (8) in the contracted state is supplied with hydraulic oil, and the amount of the input hydraulic oil is equal to the amount of the output hydraulic oil.

10. A tooling for a toroidal field magnet set for a nuclear fusion device according to claim 9, characterized in that: The interfaces (804) of the two X-direction jacks (25) located on the same side are connected together via a first high-pressure pipeline (29), and the interfaces (804) of the two Y-direction jacks (26) arranged opposite to each other are connected together via a second high-pressure pipeline (30), and the first high-pressure pipeline (29), the second high-pressure pipeline (30), and the third high-pressure pipeline connected to the hydraulic cylinder of the Z-direction jack are all connected to the same regulating valve; The regulating valve comprises a valve body (31) and a rotating part installed in the valve body (31), the interior of the valve body (31) has a cylindrical cavity, the outer wall of the valve body (31) has three oil delivery pipes (34) in an annular array, and the three oil delivery pipes (34) are respectively connected to three high-pressure pipelines; the rotating part comprises a hollow column core (32), the outer wall of the column core (32) has three connecting columns (33) in an annular array, and one of the connecting columns (33) is a tubular structure connected to the hollow structure of the column core (32), one end of the column core (32) is rotated and sealed to extend out of one end of the valve body (31), and a knob (35) is fixed thereto, and the other end of the column core (32) is rotated and sealed to extend out of the other end of the valve body (31), and a hydraulic oil pumping main pipe is coaxially fixed thereto, so that every time the knob (35) is rotated 120°, only one high-pressure pipeline is connected to the hydraulic oil pumping main pipe; A jumper arm (36) is fixed between each pair of jacks arranged opposite to each other, and the jumper arm (36) rigidly connects the extended ends of the piston rods (802) of the two jacks together, so that the hydraulic oil in the jack in a contracted state is pushed back by the jumper arm (36) to push its piston rod (802) back and is squeezed out, and the corresponding high-pressure pipeline's respective flow solenoid valves (28) are closed when they detect that the outflow and inflow flows are equal to the set values.

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