CN216902424U

CN216902424U - Assembly type low-leakage heat connection support structure and low-temperature superconducting magnet with same

Info

Publication number: CN216902424U
Application number: CN202123170560.6U
Authority: CN
Inventors: 王亮; 王晓明; 毛凯; 谭浩; 刘志; 史福特; 沈胜兵
Original assignee: Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
Current assignee: Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-07-05
Anticipated expiration: 2031-12-16

Abstract

The utility model provides a mountable low-heat-leakage connection support structure and a low-temperature superconducting magnet with the same, and the mountable low-heat-leakage connection support structure comprises a first end part connecting piece, a second end part connecting piece and a middle connecting component, wherein the first end part connecting piece comprises a first supporting body and a first connecting part, one end of the first supporting body is connected with an inner groove of a magnet, the other end of the first supporting body is connected with one end of the first connecting part, the first connecting part is provided with a first cavity, the second end part connecting piece comprises a second supporting body and a second connecting part, one end of the second supporting body is connected with an outer groove of the magnet, the other end of the second supporting body is connected with one end of the second connecting part, the second connecting part is provided with a second cavity, the first end part connecting piece, the second end part connecting piece and the middle connecting component are of a disc-shaped structure, the middle connecting component is provided with a middle cavity, one end of the middle connecting component is connected with the first connecting part, and the other end of the middle connecting component is connected with the other end of the second connecting part. By applying the technical scheme of the utility model, the technical problem that the magnet supporting structure in the prior art is difficult to give consideration to both structural strength and heat leakage is solved.

Description

Assembly type low-heat-leakage connection supporting structure and low-temperature superconducting magnet with same

Technical Field

The utility model relates to the technical field of magnetic-levitation train superconducting magnet structures, in particular to an assembled low-heat-leakage connection supporting structure and a low-temperature superconducting magnet with the same.

Background

The low-temperature superconducting magnet comprises an inner groove and an outer groove, wherein a superconducting magnet coil is placed in the inner groove, the inner groove is cooled to a low-temperature environment of about 4.2K by liquid helium usually, and the outside of the outer groove is in a room-temperature environment of 300K; in order to ensure stable operation of the inner tank coil, a low temperature environment needs to be maintained, so a high vacuum and high heat shielding structure is generally arranged between the inner tank and the outer tank, and the inner tank and the outer tank connecting piece are designed to be a low heat leakage structure, so that heat transfer from the outer tank to the inner tank is reduced as much as possible. Since the driving force of the superconducting magnet is generated by the coil in the inner tank after being excited and transmitted to the outer tank, the connection support structure between the inner tank and the outer tank needs to have sufficient rigidity and strength. At present, the basic design ideas include that a low-thermal-conductivity material is adopted, material distribution on a heat transfer path is reduced, the heat transfer path is prolonged, and the like, and the low-thermal-conductivity material is preferably used, however, under the condition that the material is fixed, the reduction of the material inevitably affects the connection strength and rigidity of the structure, and the prolongation of the heat transfer path also affects the rigidity, so that the work focus is to design a connection structure form which can give consideration to both low heat leakage and high strength.

Domestic patent (CN201936715U) 'a low-temperature superconducting magnet low-heat-leakage rod falling structure' discloses a suspender structure with high-temperature end connecting threads and low-temperature connecting threads arranged at two ends, but under the condition of the same material, a solid structure has no advantages in the aspects of improving bearing capacity and reducing heat leakage. The patent (CN104779030A) "a superconducting magnet suspension support structure" includes that the structural strength is improved by the axial support rod and the radial support rod, the structure is relatively complex, and the space utilization rate is low. The patent (CN203323885U) "radial vibration and impact resistant cold platform support structure" discloses a support structure composed of an auxiliary support ring and four inclined strut type low heat leakage ceramic rods, the cross section of the connection structure is small, heat leakage is low, and the connection structure is not suitable for transferring large load and cannot be applied to the driving force of superconducting magnets. The patent (CN201953843U) "an axial connecting rectangular pipe" discloses a low heat leakage structure formed by connecting a composite material cylinder and a metal material flange, and the heat leakage is difficult to be reduced to a sufficient level under the condition of a small axial distance. For the scheme that patent CN201953843U related both ends are metal construction, the thermal conductivity is higher, and under small-size space, the combined material section of thick bamboo transfer path is short, and the heat leakage is difficult to reduce to enough low, and the structure can not fully use the design space, reduces the structure heat transfer. Therefore, the support structure of the low-temperature superconducting magnet provided by the prior art cannot simultaneously solve the problems of structural strength and heat leakage.

SUMMERY OF THE UTILITY MODEL

The utility model provides an assembled low-heat-leakage connection supporting structure and a low-temperature superconducting magnet with the same, and the assembled low-heat-leakage connection supporting structure can solve the technical problem that the low-temperature superconducting magnet supporting structure in the prior art is difficult to give consideration to both structural strength and heat leakage.

According to the present invention there is provided a mountable low leakage heat connecting support structure comprising: the first end connecting piece is of a disc-shaped structure and comprises a first supporting body and a first connecting part, one end of the first supporting body is connected with the magnet inner groove, the other end of the first supporting body is connected with one end of the first connecting part, and the first connecting part is provided with a first cavity; the second end connecting piece is of a disc-shaped structure and comprises a second supporting body and a second connecting part, one end of the second supporting body is connected with the outer groove of the magnet, the other end of the second supporting body is connected with one end of the second connecting part, and the second connecting part is provided with a second cavity; middle coupling assembling, middle coupling assembling is disc structure, and middle coupling assembling has middle cavity, and middle coupling assembling's one end is connected with the other end of first connecting portion, and middle coupling assembling's the other end is connected with the other end of second connecting portion.

Furthermore, the middle connecting component is provided with a plurality of middle connecting pieces, any middle connecting piece is provided with a middle cavity, the middle connecting pieces are sequentially connected, and the number of the middle connecting pieces can be adjusted according to the space between the magnet inner groove and the magnet outer groove by the assembled low-heat-leakage connecting and supporting structure.

Furthermore, any middle connecting piece is of a disc-shaped structure and comprises an inner middle connecting body and an outer middle connecting body, the middle cavity is arranged inside the inner middle connecting body, the middle connecting piece is also provided with an interlayer cavity, and the interlayer cavity is arranged between the inner middle connecting body and the outer middle connecting body.

Further, the inner intermediate connector comprises a first intermediate arc segment, a second intermediate arc segment, a third intermediate arc segment, a fourth intermediate arc segment, a first intermediate connection segment, a second intermediate connection segment, a third intermediate connection segment and a fourth intermediate connection segment, the first intermediate arc segment and the third intermediate arc segment are symmetrically arranged relative to the central axis of the intermediate connector, the second intermediate arc segment and the fourth intermediate arc segment are symmetrically arranged relative to the central axis of the intermediate connector, the first intermediate connection segment and the third intermediate connection segment are symmetrically arranged relative to the central axis of the intermediate connector, and the second intermediate connection segment and the fourth intermediate connection segment are symmetrically arranged relative to the central axis of the intermediate connector; the outer middle connector comprises a fifth middle arc line section and a sixth middle arc line section, the fifth middle arc line section and the sixth middle arc line section are symmetrically arranged relative to the central axis of the middle connector and are connected with each other, the first middle connecting section is respectively connected with the first middle arc line section and the fifth middle arc line section, the second middle connecting section is respectively connected with the second middle arc line section and the fifth middle arc line section, the third middle connecting section is respectively connected with the third middle arc line section and the sixth middle arc line section, and the fourth middle connecting section is respectively connected with the fourth middle arc line section and the sixth middle arc line section.

Furthermore, any middle connecting piece comprises a middle reinforcing piece, the middle reinforcing piece is arranged in the interlayer cavity and is respectively connected with the inner middle connecting body and the outer middle connecting body, and the middle reinforcing piece is used for improving the structural strength of the middle connecting piece.

Further, first connecting portion include the inboard connector of first end and the outside connector of second end, first cavity sets up between the inboard connector of first end and the outside connector of second end, the inboard connector of first end includes first end arc segment, the outside connector of second end includes second end arc segment, third end arc segment, first end linkage segment, second end linkage segment, third end linkage segment and fourth end linkage segment, the both ends of first end arc segment are equallyd divide and are connected with first supporter respectively, first end linkage segment, second end arc segment and second end linkage segment are connected with first end arc segment after connecting gradually, third end linkage segment, third end arc segment and fourth end linkage segment are connected with first end arc segment after connecting gradually.

Further, the second connecting portion includes the inboard connector of third end and the outside connector of fourth end, the second cavity sets up between the inboard connector of third end and the outside connector of fourth end, the inboard connector of third end includes fourth end arc segment, the outside connector of fourth end includes fifth end arc segment, sixth end arc segment, fifth end linkage segment, sixth end linkage segment, seventh end linkage segment and eighth end linkage segment, the both ends of fourth end arc segment are equallyd divide and are connected with the second supporter respectively, fifth end linkage segment, sixth end arc segment and sixth end linkage segment are connected with fourth end arc segment after connecting gradually, seventh end linkage segment, sixth end arc segment and eighth end linkage segment are connected with fourth end arc segment after connecting gradually.

Furthermore, the first end connecting piece also comprises a first end reinforcing piece, the first end reinforcing piece is arranged in the first cavity and is respectively connected with the first end inner side connecting body and the second end outer side connecting body, and the first end reinforcing piece is used for improving the structural strength of the first end connecting piece; the second end connecting piece further comprises a second end reinforcing piece, the second end reinforcing piece is arranged in the second cavity and is connected with the third end inner side connecting body and the fourth end outer side connecting body respectively, and the second end reinforcing piece is used for improving the structural strength of the second end connecting piece.

According to another aspect of the present invention, there is provided a cryogenic superconducting magnet comprising a mountable low-leakage thermal connection support structure as described above, a magnet inner groove and a magnet outer groove, the mountable low-leakage thermal connection support structure being provided between the magnet inner groove and the magnet outer groove, the mountable low-leakage thermal connection support structure being for enabling load transfer between the magnet inner groove and the magnet outer groove.

Further, the low-temperature superconducting magnet further comprises a first heat insulation gasket and/or a second heat insulation gasket, the first heat insulation gasket is arranged between the assembled low-leakage heat connection support structure and the inner magnet groove, and the second heat insulation gasket is arranged between the assembled low-leakage heat connection support structure and the outer magnet groove.

By applying the technical scheme of the utility model, the utility model provides the assembled low-heat-leakage connecting and supporting structure, the connecting and supporting structure is provided with the first end connecting piece, the second end connecting piece and the middle connecting component, the first end connecting piece, the second end connecting piece and the middle connecting component are all provided with the cavities, and the hollow section form is adopted, so that the section arrangement materials are less in the direction of heat transfer, the heat resistance is increased, and the heat transfer capacity of the structure is reduced; by arranging the first end connecting piece, the second end connecting piece and the middle connecting assembly into a disc-shaped structure, the structure can realize relatively uniform distribution of stress by utilizing the characteristic of circumferential transmission of the load of the disc-shaped structure under the condition of the same material using amount, has strong bearing capacity and can realize better connection strength and rigidity; in addition, the first end connecting member, the second end connecting member and the middle connecting member are all arranged in a hollow disc-shaped structure, so that a heat transfer path is prolonged. Therefore, compared with the prior art, the assembled low-heat-leakage connecting and supporting structure provided by the utility model can reduce the heat transfer capacity of the structure and realize better connecting strength and rigidity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 illustrates a schematic structural view of a mountable low leakage heat coupling support structure provided in accordance with an embodiment of the present invention;

FIG. 2 illustrates a cross-sectional view of an intermediate connection provided in accordance with an exemplary embodiment of the present invention;

FIG. 3 shows a front view of the intermediate linkage provided in FIG. 2;

FIG. 4 shows a side view of the intermediate linkage provided in FIG. 2;

FIG. 5 illustrates a schematic structural view of a first end connector provided in accordance with a specific embodiment of the present invention;

FIG. 6 shows a front view of the first end connector provided in FIG. 5;

FIG. 7 illustrates a schematic structural view of a second end connector provided in accordance with a specific embodiment of the present invention;

fig. 8 shows a side view of the second end connector provided in fig. 7.

Wherein the figures include the following reference numerals:

10. a first end connector; 11. a first support; 11a, a first connection hole; 12. a first connection portion; 12a, a first cavity; 12b, bolt connecting holes; 12c, a fabrication hole; 121. a first end inboard connector; 122. a second end outboard connector; 1221. a second end arc segment; 1222. a third end arc segment; 1223. a first end connection section; 1224. a second end connection section; 1225. a third end connection section; 1226. a fourth end connection section; 13. a first end stiffener; 20. a second end connector; 21. a second support; 21a, a second connecting hole; 22. a second connecting portion; 22a, a second cavity; 22b, bolt connecting holes; 22c, fabrication holes; 221. a third end inside connector; 222. a fourth end portion outer side connecting body; 2221. a fifth end arc segment; 2222. a sixth end arc segment; 2223. a fifth end connection section; 2224. a sixth end connection section; 2225. a seventh end connection section; 2226. an eighth end connection section; 23. a second end stiffener; 30. an intermediate connecting member; 30a, a middle cavity; 30b, an interlayer cavity; 30c, bolt connection holes; 30d, fabrication holes; 30e, a central axis of the intermediate connector; 31. an inboard intermediate connector; 311. a first intermediate arc segment; 312. a second intermediate arc segment; 313. a third intermediate arc segment; 314. a fourth intermediate arc segment; 315. a first intermediate connection section; 316. a second intermediate connection section; 317. a third intermediate connection section; 318. a fourth intermediate connection section; 32. an outer intermediate connector; 321. a fifth intermediate arc segment; 322. a sixth intermediate arc segment; 33. an intermediate reinforcement.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 8, according to an embodiment of the present invention, there is provided a assemblable low heat leakage connection support structure including a first end connection member 10, a second end connection member 20 and an intermediate connection member, the first end connection member 10 being a disc-shaped structure, the first end connection member 10 including a first support body 11 and a first connection portion 12, one end of the first support body 11 being connected to the magnet inner groove, the other end of the first support body 11 being connected to one end of the first connection portion 12, the first connection portion 12 having a first cavity 12a, the second end connection member 20 being a disc-shaped structure, the second end connection member 20 including a second support body 21 and a second connection portion 22, one end of the second support body 21 being connected to the magnet outer groove, the other end of the second support body 21 being connected to one end of the second connection portion 22, the second connection portion 22 having a second cavity 22a, the middle connecting assembly is of a disc-shaped structure and is provided with a middle cavity 30a, one end of the middle connecting assembly is connected with the other end of the first connecting part 12, and the other end of the middle connecting assembly is connected with the other end of the second connecting part 22.

By applying the configuration mode, the connection support structure with low heat leakage can be assembled, and the connection support structure is provided with the first end connecting piece, the second end connecting piece and the middle connecting component which are all provided with the cavities; by arranging the first end connecting piece, the second end connecting piece and the middle connecting assembly into a disc-shaped structure, the structure can realize relatively uniform distribution of stress by utilizing the characteristic of circumferential transmission of the load of the disc-shaped structure under the condition of the same material using amount, has strong bearing capacity and can realize better connection strength and rigidity; in addition, the first end connecting member, the second end connecting member and the middle connecting member are all arranged in a hollow disc-shaped structure, so that a heat transfer path is prolonged. Therefore, compared with the prior art, the assembled low-heat-leakage connecting and supporting structure provided by the utility model can reduce the heat transfer capacity of the structure and realize better connecting strength and rigidity.

Further, in the present invention, in order to expand the applicable range of the connection support structure, the intermediate connection assembly may be configured as a plurality of intermediate connection members 30, any one of the intermediate connection members 30 has an intermediate cavity 30a, the plurality of intermediate connection members 30 are connected in sequence, and the number of the intermediate connection members 30 may be adjusted according to the space between the inner and outer magnet slots. Under this kind of configuration, through with structural design for the assembled form, can be according to the size of connecting the support space, the suitable intermediate junction spare of change size and quantity has improved the range of application and the adjustment space of structure.

Specifically, in the present invention, the first end connecting piece 10, the second end connecting piece 20 and the middle connecting assembly are all provided with bolt connecting holes and fabrication holes, and bolts sequentially pass through the bolt connecting holes 12b on the first end connecting piece 10 and the bolt connecting holes 30c on the middle connecting assembly to realize the connection between the first end connecting piece 10 and the middle connecting assembly; bolts are sequentially passed through the bolt coupling holes 30c of the middle coupling member and the bolt coupling holes 22b of the second end coupling member 20 to accomplish the coupling of the middle coupling member and the second end coupling member 20. Through all set up the fabrication hole on first end connection spare 10, second end connection spare 20 and intermediate junction subassembly, can lighten structure weight, realize bearing structure's lightweight. In addition, the first end connector 10 is provided with a first connection hole 11a, the first end connector 10 is connected with the magnet inner groove through the first connection hole 11a, the second end connector 20 is provided with a second connection hole 21a, and the second end connector 20 is connected with the magnet outer groove through the second connection hole 21 a. The first end connector 10, the second end connector 20 and the intermediate connecting assembly are all hollow in section.

As shown in fig. 2 to 4, in order to ensure low heat leakage and achieve good connection strength and rigidity, any one of the intermediate connection members 30 may be configured to have a disk-shaped structure, each of the intermediate connection members 30 includes an inner intermediate connection member 31 and an outer intermediate connection member 32, an intermediate cavity 30a is provided inside the inner intermediate connection member 31, and the intermediate connection member 30 further has a sandwich cavity 30b provided between the inner intermediate connection member 31 and the outer intermediate connection member 32.

Specifically, as shown in fig. 2, the inner intermediate connector 31 includes a first intermediate arc line segment 311, a second intermediate arc line segment 312, a third intermediate arc line segment 313, a fourth intermediate arc line segment 314, a first intermediate connector segment 315, a second intermediate connector segment 316, a third intermediate connector segment 317, and a fourth intermediate connector segment 318, the first intermediate arc line segment 311 and the third intermediate arc line segment 313 are symmetrically disposed with respect to the central axis 30e of the intermediate connector 30, the second intermediate arc line segment 312 and the fourth intermediate arc line segment 314 are symmetrically disposed with respect to the central axis of the intermediate connector 30, the first intermediate connector segment 315 and the third intermediate connector segment 317 are symmetrically disposed with respect to the central axis of the intermediate connector 30, and the second intermediate connector segment 316 and the fourth intermediate connector segment 318 are symmetrically disposed with respect to the central axis of the intermediate connector 30; the outer intermediate connector 32 includes a fifth intermediate arc segment 321 and a sixth intermediate arc segment 322, the fifth intermediate arc segment 321 and the sixth intermediate arc segment 322 are symmetrically disposed with respect to the central axis of the intermediate connector 30 and are connected to each other, the first intermediate connector 315 is connected to the first intermediate arc segment 311 and the fifth intermediate arc segment 321, the second intermediate connector 316 is connected to the second intermediate arc segment 312 and the fifth intermediate arc segment 321, the third intermediate connector 317 is connected to the third intermediate arc segment 313 and the sixth intermediate arc segment 322, and the fourth intermediate connector 318 is connected to the fourth intermediate arc segment 314 and the sixth intermediate arc segment 322, respectively.

In this configuration, the intermediate connection member is a hollow disc-shaped structure, bolt connection holes and process holes are provided at both sides of the intermediate connection member 30, the intermediate connection member 30 is designed in a hollow disc shape, and a heat transfer path is extended; the structure is in a hollow section form, and the section arrangement materials are less along the heat transfer direction, so that the thermal resistance is increased, and the heat transfer capacity of the structure is reduced; by utilizing the characteristic of circumferential load transmission of the disc-shaped structure, under the condition of the same material using amount, the structure can realize relatively uniform distribution of stress, has strong bearing capacity and can realize better connection strength and rigidity.

In the present invention, in order to further improve the structural load-bearing capacity, any one of the intermediate connection members 30 may be configured to include an intermediate reinforcement 33, the intermediate reinforcement 33 being disposed in the interlayer cavity 30b and connected to the inner intermediate connection body 31 and the outer intermediate connection body 32, respectively, the intermediate reinforcement 33 being for improving the structural strength of the intermediate connection member 30. As a specific embodiment of the present invention, each of the intermediate connecting members 30 includes a plurality of intermediate reinforcing members 33, the plurality of intermediate reinforcing members 33 are disposed in the interlayer cavity 30b and are respectively connected to the inner intermediate connecting body 31 and the outer intermediate connecting body 32, and any two adjacent intermediate reinforcing members 33 are disposed at an included angle.

Further, in the present invention, in order to ensure low heat leakage and achieve better connection strength and rigidity, the first connection portion 12 may be configured to include a first end portion inner connection body 121 and a second end portion outer connection body 122, the first cavity 12a is disposed between the first end portion inner connection body 121 and the second end portion outer connection body 122, the first end portion inner connection body 121 includes a first end portion arc line segment, the second end portion outer connection body 122 includes a second end portion arc line segment 1221, a third end portion arc line segment 1222, a first end portion connection segment 1223, a second end portion connection segment 1224, a third end portion connection segment 1225 and a fourth end portion connection segment 1226, both ends of the first end portion arc line segment are respectively connected to the first support body 11, the first end portion connection segment 1223, the second end portion arc line segment 1221 and the second end portion connection segment 1224 are sequentially connected to each other and then connected to the first end portion arc line segment, the third end connection 1225, the third end arc 1222 and the fourth end connection 1226 are connected in sequence and then connected to the first end arc.

In the configuration mode, the first end connecting piece is of a hollow disc-shaped structure, bolt connecting holes and process holes are formed in two sides of the first end connecting piece, and the first end connecting piece is designed to be in a hollow disc shape, so that a heat transfer path is prolonged; the structure is in a hollow section form, and the section arrangement materials are less along the heat transfer direction, so that the thermal resistance is increased, and the heat transfer capacity of the structure is reduced; by utilizing the characteristic of circumferential load transmission of the disc-shaped structure, under the condition of the same material using amount, the structure can realize relatively uniform distribution of stress, has strong bearing capacity and can realize better connection strength and rigidity.

Specifically, as shown in fig. 5, the first end connection member is a half hollow disc-shaped structure with a flange, a bolt connection hole and a fabrication hole are provided on the side with the contracted size, the fabrication hole is an installation abdicating hole and can reduce the weight, and the bolt connection hole is used for installing a bolt to connect the middle connection member; and a bolt connecting hole is formed in the edge of one side of the size outer expanding and used for installing a bolt for connecting the inner groove of the magnet.

Further, in the present invention, in order to ensure low heat leakage and achieve better connection strength and rigidity, the second connection portion 22 may be configured to include a third end inner connector 221 and a fourth end outer connector 222, the second cavity 22a is disposed between the third end inner connector 221 and the fourth end outer connector 222, the third end inner connector 221 includes a fourth end arc segment, the fourth end outer connector 222 includes a fifth end arc segment 2221, a sixth end arc segment 2222, a fifth end connection segment 2223, a sixth end connection segment 2224, a seventh end connection segment 2225 and an eighth end connection segment 2226, both ends of the fourth end arc segment are respectively connected to the second support 21, the fifth end connection segment 2223, the sixth end arc segment 2222 and the sixth end connection segment 2224 are sequentially connected to each other and then connected to the fourth end arc segment, the seventh end connecting section 2225, the sixth end arc section 2222 and the eighth end connecting section 2226 are connected in sequence and then connected to the fourth end arc section.

In the configuration mode, the second end connecting piece is of a hollow disc-shaped structure, bolt connecting holes and process holes are formed in two sides of the second end connecting piece, and the second end connecting piece is designed to be in a hollow disc shape, so that a heat transfer path is prolonged; the structure is in a hollow section form, and the section arrangement materials are less along the heat transfer direction, so that the thermal resistance is increased, and the heat transfer capacity of the structure is reduced; by utilizing the characteristic of circumferential load transmission of the disc-shaped structure, under the condition of the same material using amount, the structure can realize relatively uniform distribution of stress, has strong bearing capacity and can realize better connection strength and rigidity.

Specifically, as shown in fig. 7, the second end connection member is a half hollow disc-shaped structure with a flange, a bolt connection hole and a fabrication hole are provided on the side with the contracted size, the fabrication hole is an installation abdicating hole and can reduce the weight, and the bolt connection hole is used for installing a bolt to connect the intermediate connection member; and a bolt connecting hole is formed in the edge of one side of the size outer expanding and used for installing a bolt connecting magnet outer groove.

In the present invention, in order to further improve the structural load-bearing capacity, the first end connector 10 may be configured to further include a first end reinforcement 13, the first end reinforcement 13 being disposed in the first cavity 12a and connected to the first end inner connection body 121 and the second end outer connection body 122, respectively, the first end reinforcement 13 being for improving the structural strength of the first end connector 10; the second end connector 20 further comprises a second end reinforcement 23, the second end reinforcement 23 is disposed in the second cavity 22a and is connected to the third end inner side connector and the fourth end outer side connector, respectively, and the second end reinforcement 23 is used for improving the structural strength of the second end connector 20. As an embodiment of the present invention, each first end connector 10 includes a plurality of first end reinforcements 13, the plurality of first end reinforcements 13 are disposed in the first cavity 12a and are respectively connected to the first end inner connecting body 121 and the second end outer connecting body 122, and any two adjacent first end reinforcements 13 are disposed at an included angle. Any second end connecting piece 20 comprises a plurality of second end reinforcing pieces 23, the second end reinforcing pieces 23 are arranged in the second cavity 22a and are respectively connected with a third end inner side connecting piece and a fourth end outer side connecting piece, and any two adjacent second end reinforcing pieces 23 are arranged at an included angle.

In the utility model, the assembled low heat leakage connection support structure comprises two end connecting pieces which are arranged at two sides of the structure and are respectively connected with the inner groove and the outer groove of the magnet, and the size and the width of the two end connecting pieces can be different according to the size of the installation space. The intermediate connectors may be several, and the outer dimensions and widths may be different between the two end connectors. The sections of the end connecting pieces and the middle connecting pieces are both of hollow structures, and the end connecting pieces and the middle connecting pieces are of inner and outer layers of reinforced hollow structures. The end faces of the two ends of the two end connecting pieces are of a plane structure and can be clamped on the inner groove or the outer groove of the magnet by a bolt fixing structure. The axial size and the radial size of the middle connecting piece and the end connecting piece can be adjusted as long as the middle connecting hole is ensured to correspond. Different from the prior art, the designed connecting and supporting structure is formed by assembling a plurality of connecting units together, and the middle connecting piece or the end connecting piece can be replaced according to the actual installation space.

By applying the configuration mode, the low-temperature superconducting magnet is provided, and because the connection support structure provided by the utility model is provided with the first end part connecting piece, the second end part connecting piece and the middle connecting component, the first end part connecting piece, the second end part connecting piece and the middle connecting component are all provided with the cavities, the hollow section form is adopted, the material is less in section arrangement along the heat transfer direction, the thermal resistance is increased, and the heat transfer capacity of the structure is reduced; by arranging the first end connecting piece, the second end connecting piece and the middle connecting assembly into a disc-shaped structure, the structure can realize relatively uniform distribution of stress by utilizing the characteristic of circumferential transmission of the load of the disc-shaped structure under the condition of the same material using amount, has strong bearing capacity and can realize better connection strength and rigidity; in addition, the first end connecting member, the second end connecting member and the middle connecting member are all arranged in a hollow disc-shaped structure, so that a heat transfer path is prolonged. Therefore, the connection support structure is used for the low-temperature superconducting magnet, and the working performance of the low-temperature superconducting magnet can be greatly improved.

In the present invention, to further reduce heat conduction, the cryogenic superconducting magnet may be configured to further comprise a first thermally insulating spacer disposed between the fittable low leakage thermal connection support structure and the inner magnet slot and/or a second thermally insulating spacer disposed between the fittable low leakage thermal connection support structure and the outer magnet slot. In addition, as another embodiment of the present invention, the low-temperature superconducting magnet further includes a third thermal insulating spacer, and the third thermal insulating spacer is disposed between any two adjacent intermediate connecting members 30.

For a further understanding of the present invention, the detailed description of the mountable low leakage heat connecting support structure provided by the present invention is provided with reference to fig. 1 to 8.

As shown in fig. 1 to 8, according to an embodiment of the present invention, there is provided a assemblable low heat leakage connection support structure including a first end connection member 10, a second end connection member 20, and two intermediate connection members 30, the first end connection member 10 having a disk-shaped structure, the first end connection member 10 including a first support body 11 and a first connection portion 12, one end of the first support body 11 being connected to the magnet inner groove, the other end of the first support body 11 being connected to one end of the first connection portion 12, the first connection portion 12 having a first cavity 12a, the second end connection member 20 having a disk-shaped structure, the second end connection member 20 including a second support body 21 and a second connection portion 22, one end of the second support body 21 being connected to the magnet outer groove, the other end of the second support body 21 being connected to one end of the second connection portion 22, the second connection portion 22 having a second cavity 22a, the two intermediate connecting members 30 are each of a disc-shaped structure, the intermediate connecting members 30 have an intermediate cavity 30a, one end of the first intermediate connecting member 30 is connected with the other end of the first connecting portion 12, the other end of the second intermediate connecting member 30 is connected with one end of the second intermediate connecting member 30, and the other end of the second intermediate connecting member 30 is connected with the other end of the second connecting portion 22.

The assembly type low heat leakage connection supporting structure is an assembly type structure and is arranged between the magnet inner groove and the magnet outer groove. The assembled connecting and supporting structure is mainly used for being installed between the magnet inner groove and the magnet outer groove, and transmitting driving force and braking force generated by the coil to the outer groove from the inner groove, so that acceleration and deceleration of the whole vehicle are realized.

The assembly type connecting and supporting magnet is formed by assembling two end connecting pieces and two middle connecting pieces, and the two end connecting pieces are respectively connected to an inner groove and an outer groove of the magnet; the intermediate connectors are connected to the end connectors.

The cross-section of the intermediate link 30 is as shown in fig. 2 to 4, a bolt connection hole and an installation process hole are formed on the intermediate link 30, and the two intermediate links 30 are connected to each other by a bolt installed in the bolt connection hole. The end connecting piece is fixed on the inner groove and the outer groove of the magnet through bolts in the bolt connecting holes.

The attachable support structure may be made of a metal material or a composite material, depending on the structural insulation requirements. And a heat insulation material with low heat conductivity can be arranged between the two adjacent middle connecting pieces or end connecting pieces and the inner and outer grooves of the magnet, so that the heat insulation capability of the structure is improved. For reducing structure heat leakage, but assembled connection supporting structure section structural design is hollow structure, and the section is two-layer structure and adds the muscle form. The plurality of connecting and assembling structures have curved sections, so that the heat transfer path is prolonged, the materials of the sections perpendicular to the heat transfer path are less, the thermal resistance is increased, the heat conducting capacity of the structure is reduced, and therefore, the heat leakage is low. In the whole connecting and supporting part assembling structure, when the axial force and the radial force are transmitted from one part to the other part, the uniform distribution of the load can be realized in any direction by utilizing the characteristics of the disc-shaped connecting part, so that the structure has stronger bearing capacity.

In summary, the utility model provides an assembled low heat leakage connection support structure, which is provided with a first end connection piece, a second end connection piece and a middle connection assembly, wherein the first end connection piece, the second end connection piece and the middle connection assembly are all provided with cavities, and the hollow section form has the advantages that the material distribution of the section along the heat transfer direction is less, the thermal resistance is increased, and the heat transfer capacity of the structure is reduced; by arranging the first end connecting piece, the second end connecting piece and the middle connecting assembly into a disc-shaped structure, the structure can realize relatively uniform distribution of stress by utilizing the characteristic of circumferential transmission of the load of the disc-shaped structure under the condition of the same material using amount, has strong bearing capacity and can realize better connection strength and rigidity; in addition, all set up first end connection spare, second end connection spare and middle coupling assembling into hollow disc structure, prolonged the heat transfer route to can guarantee better joint strength and rigidity, bearing structure actual cross sectional area is less, has effectively reduced the structure heat leakage quantity. Therefore, compared with the prior art, the assembled low-heat-leakage connecting and supporting structure provided by the utility model can reduce the heat transfer capacity of the structure and realize better connecting strength and rigidity.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mountable low leakage heat connecting support structure, comprising:

the first end connecting piece (10), the first end connecting piece (10) is of a disc-shaped structure, the first end connecting piece (10) comprises a first supporting body (11) and a first connecting part (12), one end of the first supporting body (11) is connected with an inner groove of a magnet, the other end of the first supporting body (11) is connected with one end of the first connecting part (12), and the first connecting part (12) is provided with a first cavity (12 a);

a second end connector (20), wherein the second end connector (20) has a disc-shaped structure, the second end connector (20) comprises a second support body (21) and a second connecting part (22), one end of the second support body (21) is connected with the outer groove of the magnet, the other end of the second support body (21) is connected with one end of the second connecting part (22), and the second connecting part (22) is provided with a second cavity (22 a);

middle coupling assembling, middle coupling assembling is disc structure, middle coupling assembling has middle cavity (30a), middle coupling assembling's one end with the other end of first connecting portion (12) is connected, middle coupling assembling's the other end with the other end of second connecting portion (22) is connected.

2. The assemblable low-leakage connecting support structure of claim 1, wherein the intermediate connecting member has a plurality of intermediate connecting members (30), any one of the intermediate connecting members (30) has the intermediate cavity (30a), and the plurality of intermediate connecting members (30) are connected in sequence, and the assemblable low-leakage connecting support structure can adjust the number of the intermediate connecting members (30) according to a space between the magnet inner groove and the magnet outer groove.

3. The assemblable low leakage heat connecting support structure of claim 2, wherein any one of said intermediate connecting members (30) has a disk-shaped configuration, said intermediate connecting members (30) each comprising an inner intermediate connecting body (31) and an outer intermediate connecting body (32), said intermediate cavity (30a) being provided inside said inner intermediate connecting body (31), said intermediate connecting member (30) further having a sandwich cavity (30b), said sandwich cavity (30b) being provided between said inner intermediate connecting body (31) and said outer intermediate connecting body (32).

4. The attachable low heat leak connecting support structure according to claim 3, wherein said inner intermediate connecting body (31) comprises a first intermediate arc segment (311), a second intermediate arc segment (312), a third intermediate arc segment (313), a fourth intermediate arc segment (314), a first intermediate connecting segment (315), a second intermediate connecting segment (316), a third intermediate connecting segment (317) and a fourth intermediate connecting segment (318), said first intermediate arc segment (311) and said third intermediate arc segment (313) being symmetrically arranged with respect to a central axis of said intermediate connecting member (30), said second intermediate arc segment (312) and said fourth intermediate arc segment (314) being symmetrically arranged with respect to a central axis of said intermediate connecting member (30), said first intermediate connecting segment (315) and said third intermediate connecting segment (317) being symmetrically arranged with respect to a central axis of said intermediate connecting member (30), the second intermediate connection section (316) and the fourth intermediate connection section (318) are symmetrically arranged with respect to a central axis of the intermediate connection member (30); the outer intermediate connector (32) comprises a fifth intermediate arc segment (321) and a sixth intermediate arc segment (322), the fifth middle arc line segment (321) and the sixth middle arc line segment (322) are symmetrically arranged relative to the central axis of the middle connecting piece (30) and are connected with each other, the first intermediate connecting section (315) is connected with the first intermediate arc segment (311) and the fifth intermediate arc segment (321) respectively, the second intermediate connecting section (316) is respectively connected with the second intermediate arc segment (312) and the fifth intermediate arc segment (321), the third intermediate connecting section (317) is respectively connected with the third intermediate arc segment (313) and the sixth intermediate arc segment (322), the fourth intermediate connection section (318) is connected to the fourth intermediate arc segment (314) and the sixth intermediate arc segment (322), respectively.

5. The assemblable low leakage heat connection support structure of claim 4, wherein any of said intermediate connection members (30) comprises an intermediate reinforcement member (33), said intermediate reinforcement member (33) being disposed within said sandwich cavity (30b) and being connected to said inner intermediate connection body (31) and said outer intermediate connection body (32), respectively, said intermediate reinforcement member (33) being adapted to increase the structural strength of said intermediate connection member (30).

6. The structure according to any one of claims 1 to 5, characterized in that said first connection portion (12) comprises a first end inner connection body (121) and a second end outer connection body (122), said first cavity (12a) being arranged between said first end inner connection body (121) and said second end outer connection body (122), said first end inner connection body (121) comprising a first end arc segment, said second end outer connection body (122) comprising a second end arc segment (1221), a third end arc segment (1222), a first end connection segment (1223), a second end connection segment (1224), a third end connection segment (1225) and a fourth end connection segment (1226), both ends of said first end arc segment being connected to said first support body (11), respectively, said first end connection segment (1223) and said fourth end connection segment (1226), The second end arc segment (1221) and the second end connecting segment (1224) are connected in sequence and then are connected with the first end arc segment, and the third end connecting segment (1225), the third end arc segment (1222) and the fourth end connecting segment (1226) are connected in sequence and then are connected with the first end arc segment.

7. The structure according to claim 6, characterized in that said second connection portion (22) comprises a third inner end connection body (221) and a fourth outer end connection body (222), said second cavity (22a) being arranged between said third inner end connection body (221) and said fourth outer end connection body (222), said third inner end connection body (221) comprising a fourth arc segment, said fourth outer end connection body (222) comprising a fifth arc segment (2221), a sixth arc segment (2222), a fifth end connection segment (2223), a sixth end connection segment (2224), a seventh end connection segment (2225) and an eighth end connection segment (2226), both ends of said fourth arc segment being connected to said second support body (21), said fifth end connection segment (2223) and said fourth end connection segment (2223) respectively, The sixth end arc segment (2222) and the sixth end connecting segment (2224) are connected in sequence and then connected with the fourth end arc segment, and the seventh end connecting segment (2225), the sixth end arc segment (2222) and the eighth end connecting segment (2226) are connected in sequence and then connected with the fourth end arc segment.

8. The assemblable low leakage heat connection support structure of claim 6, wherein said first end connector (10) further comprises a first end reinforcement (13), said first end reinforcement (13) being disposed within said first cavity (12a) and being connected to said first end inner connector (121) and said second end outer connector (122), respectively, said first end reinforcement (13) being for increasing the structural strength of said first end connector (10); the second end connecting piece (20) further comprises a second end reinforcing piece (23), the second end reinforcing piece (23) is arranged in the second cavity (22a) and is respectively connected with the third end inner side connecting body (221) and the fourth end outer side connecting body (222), and the second end reinforcing piece (23) is used for improving the structural strength of the second end connecting piece (20).

9. A cryogenic superconducting magnet comprising a mountable low-leakage thermal connection support structure according to any one of claims 1 to 8, an inner magnet slot and an outer magnet slot, the mountable low-leakage thermal connection support structure being provided between the inner and outer magnet slots for enabling load transfer between the inner and outer magnet slots.

10. A cryogenic superconducting magnet according to claim 9, further comprising a first insulating spacer disposed between the fittable low leakage thermal connection support structure and the inner magnet slot and/or a second insulating spacer disposed between the fittable low leakage thermal connection support structure and the outer magnet slot.