Tensioning device of spiral superconducting coil

Abstract

The utility model provides a tensioning device of a spiral superconducting coil. The tensioning device of the spiral superconducting coil comprises a coil framework and a pressing assembly. The whole coil framework is columnar, the superconducting coil is wound on the coil framework in the axial direction of the coil framework, the compressing assembly sleeves the periphery of the superconducting coil in the axial direction of the coil framework, and the superconducting coil is clamped between the peripheral surface of the coil framework and the inner wall surface of the compressing assembly; in other words, the pressing assembly and the coil framework are located on the inner side and the outer side of the superconducting coil respectively, so that the superconducting coil is pressed and limited, and axial deformation or radial deformation of the superconducting coil can be prevented. The pressing assembly comprises a plurality of protection components which are sequentially arranged in the axial direction of the coil framework, the opposite ends of every two adjacent protection components are connected together in an inserted mode in the axial direction of the coil framework through a first insertion structure, the size of each single protection component is smaller, the single protection component is lighter, the assembling flexibility is improved, and the assembling efficiency is improved. And axial stress generated when the superconducting coil works can be dispersed through the plugging mode of the first plugging structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to superconducting coil technical field especially relates to a kind of tightening device of helical superconducting coil. BACKGROUND

[0002] Superconducting coil has zero resistance, high current-carrying capacity and other characteristics, can produce strong and stable magnetic field, and the Lorentz force produced by helically wound superconducting coil under magnetic field action will lead to the deformation of radial expansion and axial contraction of superconducting coil, in turn, lead to uneven stress of superconducting coil, produce eddy current and cause local temperature to be too high, affect magnetic field intensity.

[0003] In prior art, multiple turns of glass silk tape / stainless steel wire / brass wire / aluminum wire are usually bundled outside superconducting coil to overcome the deformation tension of superconducting coil and inhibit the radial and axial expansion or contraction deformation of superconducting coil, but this bundling method will cause uneven stress of superconducting coil, so that stable magnetic field cannot be formed, and the work load of bundling mode is large, and the reliability is low. SUMMARY

[0004] The utility model aims at solving the problems that the method of bundling superconducting coil in prior art will cause uneven stress of superconducting coil when radial and axial expansion or contraction deformation occurs, so that stable magnetic field cannot be formed, and the work load of bundling mode is large, and the reliability is low.

[0005] To solve the above technical problems, the utility model provides a kind of tightening device of helical superconducting coil, comprising: coil framework, compression assembly;Wherein coil framework is overall columnar, and superconducting coil is wound on coil framework along the axial direction of coil framework;Compression assembly is overall hollow cylinder, and is set to the outer periphery of superconducting coil along the axial direction of coil framework, and superconducting coil is clamped between the outer peripheral surface of coil framework and the inner wall surface of compression assembly;And compression assembly includes multiple protective components sequentially arranged along the axial direction of coil framework, each protective component is annular structure, and the opposite ends of adjacent two protective components are inserted together along the axial direction of coil framework by first plug-in structure, and the axial both sides ends of compression assembly are respectively fixedly connected with the corresponding axial end of coil framework.

[0006] The technical scheme is adopted, the compression assembly and the coil former are located at the inner side and the outer side of the superconducting coil respectively, thereby the superconducting coil is compressed and limited, the axial deformation or the radial deformation of the superconducting coil can be prevented, and the structure that the compression assembly is sleeved on the outer periphery of the superconducting coil along the axial direction of the coil former makes the inner wall surface of the compression assembly and the outer peripheral surface of the superconducting coil be in surface contact, the compression assembly can ensure that each part of the superconducting coil can be compressed on the coil former, the stress of the superconducting coil is uniform, and a stable magnetic field is formed. The single protection component in the plurality of protection components arranged along the axial direction of the coil former is smaller in size and more portable, assembly flexibility is improved, the stress along the axial direction generated during the operation of the superconducting coil can be dispersed through the first plug-in structure in the form of plug-in, and the connection reliability can be improved.

[0007] According to another specific embodiment of the utility model, the utility model discloses a tightening device of helical superconducting coil, and the first plug-in structure includes the first plug-in part and the first plugged part that are respectively arranged at the opposite end of the two adjacent protection components and are plugged with each other along the axial direction of the coil former, wherein the first plug-in part includes a plurality of first protruding parts that are protruded on the end face of one of the two adjacent protection components along the axial direction of the coil former, and the plurality of first protruding parts are uniformly and spacedly arranged along the circumferential direction of the one protection component; the first plugged part includes a plurality of first grooves that extend inward from the end face of the other of the two adjacent protection components along the axial direction of the coil former, and the plurality of first grooves are uniformly and spacedly arranged along the circumferential direction of the other protection component; and the plurality of first protruding parts and the plurality of first grooves are one-to-one matched along the circumferential direction of the coil former.

[0008] The plurality of first protruding parts and the plurality of first grooves are uniformly and spacedly arranged along the circumferential direction of the two adjacent protection components respectively, that is, the first plug-in structure is arranged in the form of spacing along the circumferential direction of the compression assembly, thereby the connection stability between the adjacent protection components along the circumferential direction of the compression assembly is improved.

[0009] According to another specific embodiment of the utility model, the utility model discloses a tightening device of helical superconducting coil, and when viewed along the axial direction of the coil former, the inner contour of each first groove is dovetail-shaped, and the size gradually increases from the groove mouth to the groove bottom along the radial direction of the coil former, and the outer contour of each first protruding part is matched with the inner contour of the first groove.

[0010] The outer contour of the first protruding part is matched with the inner contour of the first groove, that is, the first protruding part is also dovetail-shaped, and the structure that the size of the groove bottom of the first groove is larger than the size of the groove mouth can make the first protruding part be plugged in the first groove and be locked with each other, thereby the first protruding part is prevented from being separated outward from the first groove along the radial direction of the coil former.

[0011] According to another specific embodiment of the utility model, the utility model discloses a tightening device of helical superconducting coil, and each protective component comprises a pair of protective members that are sleeved with each other at the outer periphery of the superconducting coil, and the opposite ends of the pair of protective members correspond to each other, and the two ends are mutually inserted through the second insertion structure along the axial direction of the coil framework and are mutually locked in the radial direction of the coil framework.

[0012] By further splitting each protective component into a pair of protective members that are correspondingly inserted in the circumferential direction of the superconducting coil, the assembly flexibility is improved, and the stress in the radial direction generated during the operation of the superconducting coil can be dispersed through the mutual insertion of the second insertion structure along the axial direction of the coil framework.

[0013] According to another specific embodiment of the utility model, the utility model discloses a tightening device of helical superconducting coil, and the second insertion structure comprises second protruding portions and second grooves that are arranged between the opposite ends, respectively; wherein the second protruding portion is a protruding portion that is protruded on the end face of one protective member towards the end face of the other protective member and extends along the axial direction of the coil framework; the second groove is opened on the end face of the other protective member, is matched with the second protruding portion and extends along the axial direction of the coil framework; and when viewed along the axial direction of the coil framework, the inner contour of each second groove is dovetail-shaped and gradually increases in size from the groove mouth to the groove bottom in the radial direction of the coil framework, and the outer contour of each second protruding portion is matched with the inner contour of the second groove.

[0014] By matching the outer contour of the second protruding portion with the inner contour of the second groove, i.e. the second protruding portion is also dovetail-shaped, the structure that the size of the groove bottom of the second groove is greater than the size of the groove mouth can enable the second protruding portion to be mutually locked after being inserted into the second groove, so that the second protruding portion is prevented from being separated outward from the second groove in the radial direction of the coil framework.

[0015] According to another specific embodiment of the utility model, the utility model discloses a tightening device of helical superconducting coil, and the second insertion structure comprises second clamping portions and second clamped portions that are arranged between the opposite ends, respectively; wherein the second clamping portion is a protruding portion that is protruded on the end face of one protective member towards the end face of the other protective member, and the end portion of the protruding portion is provided with a clamping hook; and the second clamped portion is a recess portion that is opened on the end face of the other protective member, and a clamping groove that is matched with the clamping hook is opened on the inner wall of the recess portion.

[0016] By matching the clamping hook with the clamping groove, the pair of protective members can be mutually locked in the radial direction of the coil framework.

[0017] According to another specific embodiment of the utility model, the utility model discloses the tightening device of spiral superconducting coil of the embodiment of the utility model, and the coil framework is cylindrical structure, and each protective component is semicircular arc plate structure.

[0018] According to another specific embodiment of the utility model, the utility model discloses the tightening device of spiral superconducting coil of the embodiment of the utility model, and the coil framework is cylindrical structure, and each protective component includes the circular ring protective component of sleeve joint in the outer periphery of superconducting coil.

[0019] According to another specific embodiment of the utility model, the utility model discloses the spiral superconducting coil of the embodiment of the utility model, and the axial both ends of coil framework form the skeleton end plate extending along the radial respectively, and the outer end of the protective component at both ends respectively in the axial direction of coil framework is formed with the step part of the adaptation of skeleton end plate, and the axial both ends of coil framework are fixedly connected through the step part of corresponding protective component and corresponding skeleton end plate through fastener respectively.

[0020] Adopt the technical scheme, and the protective component at the axial both ends of coil framework can be positioned in the axial both ends of coil framework through the mode of fastener fixed connection protective component and coil framework, and then make protective component compress and position superconducting coil, prevent superconducting coil from generating too big axial deformation.

[0021] The utility model discloses the beneficial effect: the compression assembly and coil framework are located at the inside and outside of superconducting coil respectively, thereby compress and position superconducting coil, can prevent superconducting coil from happening axial deformation or radial deformation, and the structure of compression assembly along the axial sleeve of coil framework is located at the outer periphery of superconducting coil makes the inner wall surface of compression assembly and the outer peripheral surface of superconducting coil be the form of surface contact, and compression assembly can guarantee that every part of superconducting coil can be compressed on coil framework, guarantee that superconducting coil is evenly stressed, to form stable magnetic field. Single protective component in the multiple protective components that set gradually along the axial of coil framework is smaller in volume, more portable, improves assembly flexibility, and the stress along the axial that can be dispersed through the form of the first insertion structure insertion when superconducting coil works, can also improve the reliability of connection. ACCURACY

[0022] Figure 1 The tightening device of spiral superconducting coil and the partial structure schematic view of superconducting coil are provided for the specific embodiment of the utility model;

[0023] Figure 2 The overall structure schematic view of spiral superconducting coil is provided for the specific embodiment of the utility model;

[0024] Figure 3 For Figure 2 The sectional view schematic view of A-A direction (also show superconducting coil in the drawing);

[0025] Figure 4 Fig. 1 is a structural schematic view of one of the protective components of the tensioning device of the spiral superconducting coil according to the embodiment of the present application;

[0026] Figure 5 Fig. 2 is a structural schematic view of another protective component of the tensioning device of the spiral superconducting coil according to the embodiment of the present application.

[0027] Explanation of reference signs:

[0028] 1, coil framework;

[0029] 10, framework end plate;

[0030] 2, superconducting coil;

[0031] 3, compression assembly;

[0032] 30, protective component; 301, protective component; 302, stepped portion; 31, first plug-in structure; 311, first protrusion; 312, first groove; 32, second plug-in structure; 321, second protrusion; 322, second groove; 33, fastener. DETAILED DESCRIPTION

[0033] In order to more clearly understand the spiral superconducting coil provided by the present application, the specific structure of the spiral superconducting coil will be described in detail below in combination with the drawings.

[0034] The present application provides a kind of tensioning device of spiral superconducting coil, as shown in Figure 1 And Figure 2 It includes the coil framework 1 of whole column and the compression assembly 3 of the outer periphery of superconducting coil 2 along the axial direction of coil framework 1, and the compression assembly 3 is hollow cylinder structure, can completely cover the superconducting coil 2 in its inside, the effect of coil framework 1 and compression assembly 3 is to limit the superconducting coil 2 wound on coil framework 1 along the axial direction of coil framework 1 and protect, prevent superconducting coil 2 from axial deformation or radial deformation. Superconducting coil 2 is clamped between the outer peripheral surface of coil framework 1 and the inner wall surface of compression assembly 3, i.e. compression assembly 3 and coil framework 1 are located at the inner side and outer side of superconducting coil 2 respectively, so that axial deformation or radial deformation of superconducting coil 2 can be prevented. And compression assembly 3 includes a plurality of protective components 30 arranged in sequence along the axial direction of coil framework 1, and each protective component 30 is annular structure, and adjacent protective components 30 are inserted into each other in the form of dispersion, so that the stress along the axial direction generated by superconducting coil 2 during work can be dispersed. It should be noted that the axial direction of coil framework 1 is the X direction shown in Figure 1 、 Figure 4 And Figure 5 .

[0035] For the convenience of understanding, first explain the superconducting coil 2, superconducting coil 2 from the axial end of the coil skeleton 1 to the other end of the spiral winding, superconducting coil 2 as a whole is a plurality of annular coil along the axial direction of the coil skeleton 1 in turn arranged structure, superconducting coil 2 after energized by the Lorentz force generated by the magnetic field will make these coils produce along the radial direction of the coil skeleton 1 (Y direction in the figure) or along the axial direction of the coil skeleton 1 expansion, contraction of deformation trend. And the compression assembly 3 along the axial direction of the coil skeleton 1 is arranged outside the structure of the superconducting coil 2, the compression assembly 3 and the coil skeleton 1 clamping superconducting coil 2 way to limit the deformation of superconducting coil 2, and the inner wall surface of the compression assembly 3 and the outer surface of the superconducting coil 2, the inner surface of the superconducting coil 2 and the outer surface of the coil skeleton 1 are in the form of surface contact, the compression assembly 3 can ensure that every part of the superconducting coil 2 can be compressed on the coil skeleton 1, so that the superconducting coil 2 as a whole is pressed by the compression assembly 3, to ensure that the coil skeleton 1 and the compression assembly 3 are applied on the inside and outside of the superconducting coil 2 Limit force, ensure that the superconducting coil 2 is uniformly stressed to form a stable magnetic field. Figure 1

[0036] It should be noted that the overall structure of the coil skeleton 1 can be cylindrical or prismatic, the winding form of the superconducting coil 2 and the overall structure of the compression assembly 3 are consistent with the overall structure of the coil skeleton 1, which ensures that the compression assembly 3 can compress the superconducting coil 2 on the coil skeleton 1.

[0037] Further, the axial ends of the compression assembly 3 are respectively fixedly connected with the corresponding axial ends of the coil skeleton 1, that is, among the plurality of protective components 30 arranged along the axial direction of the coil skeleton 1 in turn, the two protective components 30 at both ends are respectively fixedly connected with the corresponding axial ends of the coil skeleton 1 to increase the structural stability, which can be connected by fasteners such as rivets, bolts, screws, etc., or by welding, bonding, etc. The opposite ends of the two adjacent protective components 30 are inserted into each other along the axial direction of the coil skeleton 1 through the first plug-in structure 31, the single protective component 30 is smaller and more portable, which improves the assembly flexibility, and the stress along the axial direction generated by the superconducting coil 2 during work can be dispersed through the plug-in form of the first plug-in structure 31. The number of protective components 30 can be two, three, four or more, for example, it can be five as shown in FIGS. Figure 1 Figure 2 The compression assembly 3 includes five protective components 30.

[0038] ​​It should be noted that the first plug-in structure 31 can include a slot opened at the opposite end of the two adjacent protective components 30 and a plug-in piece matched with the slot, that is, the corresponding slots of the same size and position can be opened at the opposite ends of the two adjacent protective components 30, and when the two adjacent protective components 30 are butt-jointed along the axial direction of the coil framework 1, the plug-in piece is inserted into the slot of one of the protective components 30, and then the slot of the other protective component 30 is matched with the other end of the plug-in piece along the axial direction of the coil framework 1.

[0039] The first plug-in structure 31 can also include a protrusion and a groove at the opposite ends of the two adjacent protective components 30 and plugged into each other along the axial direction of the coil framework 1. The protrusion and the groove can be annularly arranged around the circumference of the compression assembly 3, or a plurality of protrusions and grooves can be uniformly spaced around the circumference of the compression assembly 3, as long as the protrusion and the groove are matched one by one. When a plurality of protrusions and grooves are uniformly spaced around the circumference of the compression assembly 3, the protrusion can be a rod-shaped bolt, a block-shaped protrusion, or a tooth-shaped protrusion, and the shape of the groove is matched with the shape of the protrusion. Further, the longitudinal section of the protrusion can be approximately rectangular, or the tail shape with the size of one end near the center of the coil framework 1 larger than the size of the other end away from the center of the coil framework 1, and the dovetail plug-in structure can match and lock the two protective components 30. Moreover, a protrusion can be arranged at one end of the protrusion inserted into the groove, which protrudes radially towards the center of the coil framework 1, and a corresponding groove matched with the protrusion is arranged at the matched position in the groove, and the connection stability of the plug-in structure is improved by the matching and clamping of the protrusion and the groove.

[0040] In one of the specific embodiments of the present application, the first plug-in structure 31 includes a first plug-in part and a first plugged part arranged at the opposite ends of the two adjacent protective components 30 and plugged into each other along the axial direction of the coil framework 1, that is, one of the two adjacent protective components 30 is provided with the first plug-in part at the end, and the other protective component 30 is provided with the first plugged part at the end, and the two protective components 30 are connected to each other by the mutual plug-in of the first plug-in part and the first plugged part.

[0041] Specifically, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, the first plug-in part includes a plurality of first protrusions 311 protruding from the end face of one of the two adjacent protective components 30 along the axial direction of the coil framework 1, and the plurality of first protrusions 311 are uniformly and spacedly arranged along the circumferential direction of the one protective component 30, and the first protrusions 311 can be rod-shaped plugs, block-shaped protrusions, or tooth-shaped protrusions, and the longitudinal section of the first protrusions 311 can be approximately rectangular or dovetail-shaped, that is, the size of one end close to the center of the coil framework 1 is larger than the size of the other end away from the center of the coil framework 1, and the dovetail-shaped plug-in structure can adapt and lock the two protective components 30. As shown in Figure 1 and Figure 2 As shown, the first plug-in part includes a plurality of first protrusions 311 protruding from the end face of one of the two adjacent protective components 30 along the axial direction of the coil framework 1, and the plurality of first protrusions 311 are uniformly and spacedly arranged along the circumferential direction of the one protective component 30, and the first protrusions 311 can be rod-shaped plugs, block-shaped protrusions, or tooth-shaped protrusions, and the longitudinal section of the first protrusions 311 can be approximately rectangular or dovetail-shaped, that is, the size of one end close to the center of the coil framework 1 is larger than the size of the other end away from the center of the coil framework 1, and the dovetail-shaped plug-in structure can adapt and lock the two protective components 30. As shown in

[0042] It should be noted that the number of the first protrusions 311 and the first recesses 312 around the coil framework 1 can be two, three, four or more, for example Figure 3 As shown, the number is two.

[0043] In another specific embodiment of the present application, as shown in Figure 3 As shown, when viewed along the axial direction of the coil framework 1, the inner contour of each first recess 312 is dovetail-shaped, that is, the size gradually increases from the slot opening to the slot bottom along the radial direction of the coil framework 1, and the outer contour of each first protrusion 311 is adapted to the inner contour of the first recess 312, that is, the first protrusion 311 is also dovetail-shaped, and the structure that the size of the slot bottom of the first recess 312 is larger than the size of the slot opening can lock the first protrusion 311 and the first recess 312 after the first protrusion 311 is plugged into the first recess 312, so as to prevent the first protrusion 311 from being separated from the first recess 312 along the radial direction of the coil framework 1.

[0044] In another specific embodiment of the present application, as shown in Figures 1-3As shown, each protection component 30 comprises a pair of protection members 301 which are sleeved to the outer periphery of the superconducting coil 2 opposite to each other, i.e. each protection component 30 is divided into two opposite parts in the radial direction of the coil framework 1, the opposite ends of the pair of protection members 301 correspond to each other, and the space surrounded in the middle is used for mounting the coil framework 1 and the superconducting coil 2, the opposite ends of the two opposite protection members 301 are inserted into each other through the second insertion structure 32 along the axial direction of the coil framework 1, and are locked to each other in the radial direction of the coil framework 1 to prevent the two protection members 301 from falling off. By further splitting each protection component 30 into a pair of protection members 301 which are correspondingly inserted into each other in the circumferential direction of the superconducting coil 2, on the one hand, the assembly flexibility is improved, and on the other hand, the form of being inserted into each other through the second insertion structure 32 along the axial direction of the coil framework 1 can disperse the radial stress generated by the superconducting coil 2 during operation.

[0045] It should be noted that the second insertion structure 32 can comprise dovetail grooves opened at the opposite ends of the two opposite protection members 301 and dovetail pins (both ends of the dovetail pin inserted into the dovetail groove are dovetail-shaped) matched with the dovetail grooves, i.e. the dovetail grooves corresponding in size and position are opened at the opposite ends of the two opposite protection members 301, and when the two opposite protection members 301 are butted along the axial direction of the coil framework 1, the two ends of the dovetail pin are inserted into the dovetail grooves of the corresponding protection members 301.

[0046] The second insertion structure 32 can also comprise protrusions and grooves which are inserted into each other in the radial direction of the coil framework 1 at the opposite ends of the two opposite protection members 301, the protrusions can be dovetail-shaped protrusions extending along the axial direction of the coil framework 1, can be ball head structures protruding in the radial direction of the coil framework 1, or can be hook structures protruding in the radial direction of the coil framework 1, and the shape of the groove is matched with the shape of the protrusion so that the two are locked in the radial direction of the coil framework 1.

[0047] In another specific embodiment of the present application, as shown in Figures 1-5 The second insertion structure 32 comprises second protrusions 321 and second grooves 322 respectively arranged between the opposite ends; as shown in Figure 2 and Figure 5 The second protrusion 321 is a protrusion which is protruded from the end face of one protection member 301 towards the end face of the other protection member 301 and extends along the axial direction of the coil framework 1; as shown in Figure 2 and Figure 4As shown, the second groove 322 is arranged on the end face of the other protection member 301, and is adapted to the second protruding part 321 and extends along the axial direction of the coil former 1. Since the protection members 30 are inserted into each other along the axial direction of the coil former 1 through the first insertion structure 31, the second protruding part 321 and the second groove 322 are also arranged to extend along the axial direction of the coil former 1 to improve the connection reliability.

[0048] As shown in the drawings, Figure 3 As shown, when viewed along the axial direction of the coil former 1, the inner contour of each second groove 322 is dovetail-shaped, and the size gradually increases in the radial direction of the coil former 1 from the groove mouth to the groove bottom. The outer contour of each second protruding part 321 is adapted to the inner contour of the second groove 322, that is, the second protruding part 321 is also dovetail-shaped. The structure that the size of the groove bottom is greater than the size of the groove mouth can make the second protruding part 321 be inserted into the second groove 322 and be locked with each other, so as to prevent the second protruding part 321 from being separated outward in the radial direction of the coil former 1.

[0049] In another specific embodiment of the present application, the second insertion structure 32 comprises a second clamping part and a second clamped part arranged between each pair of opposite end portions. The second clamping part is a protruding part protruding from the end face of one protection member 301 towards the end face of the other protection member 301. The second clamped part is a recess arranged on the end face of the other protection member 301. Two opposite protection members 301 are inserted into each other in the radial direction of the coil former 1 through the insertion of the protruding part and the recess. In order to lock them in the radial direction of the coil former 1, a clamping hook can be arranged at the end portion of the protruding part, and a clamping groove adapted to the clamping hook can be arranged on the inner wall of the recess. The clamping hook is locked by being pressed into the clamping groove of the recess or being inserted into the clamping groove along the axial direction of the coil former 1. That is, the clamping hook and the clamping groove can be used to lock each pair of protection members 301 in the radial direction of the coil former 1. It should be noted that the clamping hook can be arranged on one side of the protruding part or on both sides, and the position of the clamping groove can be arranged according to the position of the clamping hook.

[0050] In another specific embodiment of the present application, as shown in the drawings, Figures 1-5 The coil former 1 is in a cylindrical structure. Each protection member 301 is in a semicircular arc plate structure.

[0051] In another specific embodiment of the utility model, the coil framework 1 is cylindrical structure, each protection component 30 includes the circular ring protection member of sleeve joint in the outer periphery of superconducting coil 2, namely each circular ring protection member is the integral circular ring structure, is directly set in the outer periphery of superconducting coil 2, and the first insertion structure 31 is inserted between the axially adjacent two circular ring protection members of coil framework 1, compared with each protection component 301 is semicircular arc plate structure, need not the second insertion structure 32 and is inserted in the radial direction of coil framework 1, can improve the structural reliability of protection component 30.

[0052] In another specific embodiment of the utility model, as shown in Figure 1 The axial both ends of coil framework 1 form the framework end plate 10 extending in the radial direction respectively, and the framework end plate 10 can form a blocking effect on the two ends of superconducting coil 2. Figure 5 As shown in The outer end of protection component 30 at both ends of coil framework 1 in the axial direction is formed with the step portion 302 matched with the framework end plate 10 respectively, the framework end plate 10 of coil framework 1 can be clamped into the step portion 302, and the axial both ends of coil framework 1 are fixedly connected with the corresponding framework end plate 10 through the step portion 302 of the corresponding protection component 30 and the fastener 33 respectively, and the fastener 33 can be rivet, bolt, screw and the like.

[0053] It should be noted that, in addition to the specific embodiment of the utility model described above, other advantages and effects of the utility model can be easily understood by those skilled in the art from the content disclosed in the specification. Although the description of the utility model will be introduced together with the preferred embodiment, this does not mean that the features of the utility model are limited to this embodiment. On the contrary, the purpose of introducing the utility model with the embodiment is to cover other options or modifications that can be extended based on the claims of the utility model. In order to provide a deep understanding of the utility model, many specific details will be included in the following description. The utility model can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the utility model, some specific details will be omitted in the description. It should be noted that, in the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0054] It should be noted that, in this specification, similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0055] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0056] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0058] Although the utility model has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by those skilled in the art that the above is a further detailed description of the utility model in combination with specific embodiments, and cannot be considered as a limitation on the specific implementation of the utility model. Those skilled in the art can make various changes in form and details, including making a number of simple inferences or substitutions, without departing from the spirit and scope of the utility model.

Claims

1. A tensioning device for a solenoid coil, characterized in that The coil framework, the compression assembly, wherein The coil framework is in the shape of a column as a whole, and the superconducting coil is wound on the coil framework along the axial direction of the coil framework; The compression assembly is in the shape of a hollow cylinder as a whole, is sleeved on the outer periphery of the superconducting coil along the axial direction of the coil framework, and the superconducting coil is clamped between the outer peripheral surface of the coil framework and the inner wall surface of the compression assembly; and The compression assembly comprises a plurality of protection components arranged in sequence along the axial direction of the coil framework, each of the protection components is in the shape of a ring, the opposite ends of two adjacent protection components are inserted into each other through a first insertion structure along the axial direction of the coil framework, and the axial two side ends of the compression assembly are fixedly connected with the corresponding axial ends of the coil framework, respectively. The first insertion structure comprises first insertion parts and first inserted parts arranged on the opposite ends of two adjacent protection components and inserted into each other along the axial direction of the coil framework, wherein The first insertion part comprises a plurality of first protruding parts protruding from the end surface of one of the two adjacent protection components along the axial direction of the coil framework, and the plurality of first protruding parts are uniformly and spacedly arranged along the circumferential direction of the one protection component; 2. The tensioning device for a solenoid coil according to claim 1, wherein The first inserted part comprises a plurality of first grooves extending inwardly from the end surface of the other of the two adjacent protection components along the axial direction of the coil framework, and the plurality of first grooves are uniformly and spacedly arranged along the circumferential direction of the other protection component; and The plurality of first protruding parts and the plurality of first grooves are matched with each other along the circumferential direction of the coil framework. When viewed along the axial direction of the coil framework, the inner contour of each first groove is in the shape of a dovetail with the size gradually increasing from the groove mouth to the groove bottom along the radial direction of the coil framework, and the outer contour of each first protruding part is matched with the inner contour of the first groove. Each protection component comprises a pair of protection members sleeved on the outer periphery of the superconducting coil and opposite to each other, the opposite ends of the pair of protection members correspond to each other, and the opposite two ends are inserted into each other through a second insertion structure along the axial direction of the coil framework and are locked with each other along the radial direction of the coil framework.

3. The tensioning device for a solenoid coil as claimed in claim 2, wherein The second insertion structure comprises second protruding parts and second grooves arranged between the opposite ends, respectively; wherein 4. The tensioning device for a solenoid coil as claimed in claim 1, wherein The second protruding part is protruding from the end surface of one of the protection members towards the end surface of the other protection member and extends along the axial direction of the coil framework; 5. The tensioning device for a solenoid coil as claimed in claim 4, wherein The second groove is opened on the end surface of the other protection member, is matched with the second protruding part, and extends along the axial direction of the coil framework; and When viewed along the axial direction of the coil framework, the inner contour of each second groove is in the shape of a dovetail with the size gradually increasing from the groove mouth to the groove bottom along the radial direction of the coil framework, and the outer contour of each second protruding part is matched with the inner contour of the second groove. The second insertion structure comprises second clamping parts and second clamped parts arranged between the opposite ends, respectively; wherein ​ 6. The tensioning device for a solenoid coil as claimed in claim 4, wherein ​ The second clamping part is a protrusion provided on the end face of one of the protection members along the end face of the other protection member, and the end of the protrusion is provided with a clamping hook; The second clamped part is a recess provided on the end face of the other protection member, and a clamping groove matched with the clamping hook is provided on the inner wall of the recess.

7. A tensioning device for a solenoid coil according to claim 5 or 6, characterized in that The coil former has a cylindrical structure; and each of the protection members has a semi-circular arc plate structure.

8. The tensioning device for a solenoid coil as recited in claim 1, wherein The coil former has a cylindrical structure; and each of the protection members includes a circular ring-shaped protection member sleeved on the outer periphery of the superconducting coil.

9. The tensioning device for a solenoid coil as recited in claim 1, wherein The axial ends of the coil former are respectively formed with radially extending former end plates; and The outer ends of the protection members at the axial ends of the coil former are respectively formed with step portions matched with the former end plates, and the axial ends of the coil former are fixedly connected with the corresponding former end plates through the corresponding protection members and the corresponding step portions through fasteners.

Images