A support device for superconducting magnet assembly

Abstract

The utility model relates to the technical field of superconducting magnets, and in particular to a support device for superconducting magnet assembly, comprising a support shaft and two positioning components arranged at intervals on the support shaft, a plurality of horizontally arranged connecting rods are arranged between the two positioning components; the positioning component comprises a support flange and a plurality of support blocks detachably mounted on the edge of the support flange, and an arc-shaped support step is arranged on the inner edge of the support block. The support block comprises a connecting portion and a supporting portion fixedly connected from the inside to the outside, and the inner side of the edge of the supporting portion is processed with the support step; a first fixing hole is arranged on the connecting portion, and a second fixing hole is arranged on the supporting flange at a position corresponding to the first fixing hole, and the connecting portion is detachably fixed on the supporting flange through the first fixing hole, the second fixing hole, bolts and nuts. The support device for superconducting magnet assembly can form a stable support for the liquid helium container of the superconducting magnet, and the support device is easy to dismantle; it has the advantages of simple structure and convenient disassembly and assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of superconducting magnets, in particular to a supporting device for assembling superconducting magnets. Background Art

[0002] Superconducting magnets are magnets that use superconducting wires as excitation coils. They have the advantages of high magnetic field intensity, good magnetic field uniformity, low energy consumption, high signal-to-noise ratio, and fast scanning speed. They are widely used in medical and scientific research testing.

[0003] like Figure 1 and Figure 2 As shown together, in the prior art, the superconducting magnet includes an outermost thermal radiation shielding layer 2 and a liquid helium container 1 installed inside the thermal radiation shielding layer 2, and the space between the thermal radiation shielding layer 2 and the liquid helium container 1 is a vacuum layer 3. When designing the superconducting magnet, one or more cold shield layers 7 will be arranged between the thermal radiation shielding layer 2 and the liquid helium container 1 according to actual conditions. The present invention is described by taking an example in which a cold shield layer 7 and a thermal radiation shielding layer 2 are arranged in sequence outside the liquid helium container 1. The thermal radiation shielding layer 2 includes an outer tube 5, an inner tube 6 and two end plates 4. The two end plates 4 connect the outer tube 5 and the inner tube 6 together from both ends. The structure of the cold shield layer 7 and the liquid helium container 1 is similar to that of the thermal radiation shielding layer 2, and also includes an inner tube and an outer tube, and an end plate (or an annular head) connecting the inner tube and the outer tube.

[0004] When assembling the superconducting magnet, the liquid helium container 1 is assembled first, and after passing the inspection, the thermal radiation shielding layer 2 and the liquid helium container 1 are assembled. After the liquid helium container 1 is supported by the tooling, the outer cylinder of the cold shield layer 7 and the outer cylinder 5 of the thermal radiation shielding layer 2 are assembled on the outside in turn, and then the end plate of the cold shield layer 7 and the end plate 4 of the thermal radiation shielding layer 2 are assembled. After the above assembly and fixation are completed, the support device of the liquid helium container 1 can be removed.

[0005] like Figure 1 and Figure 2 As shown together, the inner hole diameter of the end plate of the cold shield layer 7 and the inner hole diameter of the end plate 4 of the thermal radiation shielding layer 2 are both smaller than the inner hole diameter of the liquid helium container 1. When the support device is removed, there are disadvantages such as difficulty in disassembly, time-consuming and labor-intensive. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a support device for superconducting magnet assembly in view of the above shortcomings, which can form a stable support for the liquid helium container of the superconducting magnet and is easy to dismantle; it has the advantages of simple structure and convenient disassembly and assembly.

[0007] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0008] A support device for assembling a superconducting magnet comprises a support shaft and two positioning assemblies arranged on the support shaft at intervals, wherein a plurality of horizontally arranged connecting rods are arranged between the two positioning assemblies; the positioning assembly comprises a support flange and a plurality of support blocks detachably mounted on the edge of the support flange, wherein the inner edge of the support block is provided with an arc-shaped support step.

[0009] As an improvement, the support block includes a connecting part and a supporting part fixedly connected from the inside to the outside, and the supporting step is processed on the inner side of the edge of the supporting part; a first fixing hole is provided on the connecting part, and a second fixing hole is provided on the supporting flange at a position corresponding to the first fixing hole, and the connecting part is detachably fixed on the supporting flange by means of the first fixing hole, the second fixing hole, bolts and nuts.

[0010] As an improvement, a plurality of blocks are fixed on the support flange, the block is provided with a first fixing hole, and the block is provided at a position corresponding to the second fixing hole on the support flange. The block and the support block are respectively arranged on both sides of the support flange, and the bolts penetrate the first fixing hole, the second fixing hole and the first fixing hole on the connecting part in sequence, and the nut fixes the support block and the block on the support flange.

[0011] As an improvement, the number of the support blocks is four, and the four support blocks are evenly distributed on the support flange.

[0012] As an improvement, the support flange is provided with a center hole matched with the outer diameter of the support shaft, and the support shaft passes through the center hole.

[0013] As an improvement, a plurality of weight-reducing holes are provided on the supporting flange.

[0014] As an improvement, a mounting hole is provided on the support flange, and a connecting hole is provided on the end of the connecting rod. The connecting rod is detachably fixed on the mounting hole of the support flange through the connecting hole and a fastener.

[0015] The utility model adopts the above technical solution, and has the following advantages compared with the prior art:

[0016] The supporting device for superconducting magnet assembly of the utility model can be easily dismantled after the outer cylinder and end plate of the cold shield layer and the outer cylinder and end plate of the thermal radiation shield layer are assembled outside the liquid helium container; the supporting device has the advantages of simple structure, convenient disassembly and assembly, etc.

[0017] The supporting device for superconducting magnet assembly of the utility model can be used for supporting liquid helium containers of different sizes and models by replacing positioning components of different specifications and sizes, and has the advantages of good adaptability, low use cost, etc.

[0018] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a superconducting magnet in the prior art;

[0020] Figure 2 for Figure 1 Side view of

[0021] Figure 3 It is a three-dimensional schematic diagram of a supporting device for assembling a superconducting magnet according to the utility model;

[0022] Figure 4 This is a schematic structural diagram of a support device for superconducting magnet assembly according to the utility model;

[0023] Figure 5 for Figure 3 The structural diagram of the positioning component;

[0024] Figure 6 for Figure 3 A three-dimensional schematic diagram of the positioning component;

[0025] Figure 7 for Figure 5 A schematic diagram of the structure of the middle support block;

[0026] Figure 8 This is a reference diagram of a use state of a support device for superconducting magnet assembly of the utility model;

[0027] Wherein: 1-liquid helium container, 2-thermal radiation shielding layer outer cylinder, 3-vacuum layer, 4-end plate, 5-outer cylinder, 6-inner cylinder, 7-cold shield layer; 8-support shaft, 9-positioning assembly, 10-connecting rod, 11-support flange, 12-support block, 13-support step, 14-center hole, 15-weight reduction hole, 16-mounting hole, 17-connecting part, 18-support part, 19-first fixing hole, 20-second fixing hole, 21-stopper. DETAILED DESCRIPTION

[0028] For the sake of convenience of explanation and not for limitation, when the supporting device for superconducting magnet assembly of the present invention is used, the side close to the center of the superconducting magnet is defined as the inner side, and the opposite side is defined as the outer side. Example

[0029] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown together, a support device for superconducting magnet assembly includes a support shaft 8 and two positioning assemblies 9 spaced apart on the support shaft 8, and a plurality of horizontally arranged connecting rods 10 are arranged between the two positioning assemblies 9. A mounting hole 16 is arranged on the support flange 11, and connecting holes are arranged at both ends of the connecting rod 10. The connecting rod 10 is detachably fixedly mounted on the mounting hole 16 of the support flange 11 through the connecting holes and fasteners. Preferably, four connecting rods 10 are arranged between the two positioning assemblies 9 in this embodiment.

[0030] The support flange 11 is provided with a center hole 14 that matches the outer diameter of the support shaft 8, and the support shaft 8 passes through the center hole 14. The support flange 11 is provided with a plurality of weight-reducing holes 15. The outer diameter of the support flange 11 is smaller than the diameter of the inner hole on the end plate of the superconducting magnet cold shield layer. Preferably, in this embodiment, the number of the weight-reducing holes 15 is four, and the four weight-reducing holes 15 are evenly distributed around the center hole 14.

[0031] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown together, the positioning assembly 9 includes a support flange 11 and a plurality of arc-shaped support blocks 12 detachably mounted on the edge of the support flange 11, and an arc-shaped support step 13 is provided on the inner edge of the support block 12. Preferably, in this embodiment, the number of the support blocks 12 is four, and the four support blocks 12 are evenly distributed on the circumference of the support flange 11. In this embodiment, the support steps 13 on the four support blocks 12 are located on the circumference of the same circle and are adapted to the size of the inner aperture of the supported liquid helium container 1.

[0032] like Figure 5 , Figure 6 and Figure 7 As shown together, the support block 12 includes a connecting portion 17 and a supporting portion 18 that are fixedly connected from the inside to the outside, and the supporting step 13 is processed on the inner side of the edge of the supporting portion 18. A first fixing hole 19 is provided on the connecting portion 17, and a second fixing hole 20 is provided on the supporting flange 11 at a position corresponding to the first fixing hole 19. The connecting portion 17 is detachably fixedly mounted on the supporting flange 11 through the first fixing hole 19, the second fixing hole 20, bolts, and nuts.

[0033] In this embodiment, preferably, a plurality of stoppers 21 are fixed on the support flange 11, and the stoppers 21 are provided with first fixing holes 19. The stoppers 21 are provided at positions corresponding to the second fixing holes 20 on the support flange 11, and the stoppers 21 and the support blocks 12 are respectively arranged on both sides of the support flange 11, and the bolts sequentially penetrate the first fixing hole 19, the second fixing hole 20 and the first fixing hole 19 on the stopper 21 of the connecting portion 17, and the nuts fix the support blocks 12 and the stoppers 21 on the support flange 11. In this embodiment, preferably, five first fixing holes 19 are provided on each support block 12, wherein the first fixing holes 19 at both ends and the first fixing hole 19 in the middle are both round holes, and the round holes can ensure the installation position of the support block 12. The other two first fixing holes 19 are long holes, which can facilitate the fixed installation of the support block 12 on the support flange 11, and the processing accuracy requirements of the long holes are relatively low.

[0034] like Figure 8 As shown, first, when the support device is used to assemble the superconducting magnet, the support device is placed in the center hole of the liquid helium container 1, and the positioning assembly 9 fixes the liquid helium container 1 on the support shaft 8 from both ends. Specifically, the support step 13 on the support block 12 is clamped on the center hole of the liquid helium container 1 from the end, the arc surface of the support step 13 fits the center hole of the liquid helium container 1, and the support step 13 is located on the inner side of the center hole of the liquid helium container 1. After the liquid helium container 1 is fixed on the support shaft 8, the outer cylinder of the superconducting magnet cold shield layer, the outer cylinder of the thermal radiation shield layer, and the cold shield layer end plate and the thermal radiation shield layer end plate are assembled. After the assembly is completed, the support block 12 and the stopper 21 are first removed from the support flange 11, and then the entire set of support devices are removed. Since the outer diameter of the support flange 11 is smaller than the aperture of the inner hole on the end plate of the superconducting magnet cold shield layer, the support device is easy to disassemble and assemble.

[0035] In summary, the utility model provides a support device for superconducting magnet assembly. After the outer cylinder and end plate of the cold shield layer and the outer cylinder and end plate of the thermal radiation shield layer are assembled outside the liquid helium container 1, the support device can be easily disassembled. It has the advantages of simple structure and convenient assembly and disassembly. The support device for superconducting magnet assembly of the utility model can be used for supporting liquid helium containers of different sizes and models by replacing positioning components of different specifications and sizes, and has the advantages of good adaptability and low use cost.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support device for superconducting magnet assembly, characterized in that: The invention comprises a support shaft (8) and two positioning assemblies (9) arranged at intervals on the support shaft (8), wherein a plurality of horizontally arranged connecting rods (10) are arranged between the two positioning assemblies (9); the positioning assembly (9) comprises a support flange (11) and a plurality of support blocks (12) detachably mounted on the edge of the support flange (11), wherein the inner edge of the support block (12) is provided with an arc-shaped support step (13).

2. The superconducting magnet assembly support device according to claim 1, characterized in that: The support block (12) comprises a connecting portion (17) and a supporting portion (18) which are fixedly connected from the inside to the outside, and the supporting step (13) is processed on the inner side of the edge of the supporting portion (18); a first fixing hole (19) is provided on the connecting portion (17), and a second fixing hole (20) is provided on the supporting flange (11) at a position corresponding to the first fixing hole (19); the connecting portion (17) is detachably fixedly mounted on the supporting flange (11) via the first fixing hole (19), the second fixing hole (20), bolts and nuts.

3. The superconducting magnet assembly support device according to claim 2, characterized in that: A plurality of stoppers (21) are also fixed to the support flange (11), the stoppers (21) are provided with first fixing holes (19), and the stoppers (21) are provided at positions corresponding to the second fixing holes (20) on the support flange (11). The stoppers (21) and the support blocks (12) are respectively arranged on both sides of the support flange (11), and bolts are sequentially passed through the first fixing hole (19) and the second fixing hole (20) of the connecting portion (17) and the first fixing hole (19) on the stoppers (21), and nuts are used to fix the support blocks (12) and the stoppers (21) on the support flange (11).

4. The superconducting magnet assembly support device according to claim 1, characterized in that: The number of the support blocks (12) is four, and the four support blocks (12) are evenly distributed on the support flange (11).

5. The superconducting magnet assembly support device according to any one of claims 1 to 4, characterized in that: The support flange (11) is provided with a center hole (14) that matches the outer diameter of the support shaft (8), and the support shaft (8) passes through the center hole (14).

6. The superconducting magnet assembly support device according to claim 5, characterized in that: The supporting flange (11) is provided with a plurality of weight-reducing holes (15).

7. The superconducting magnet assembly support device according to any one of claims 1 to 4, characterized in that: The support flange (11) is provided with a mounting hole (16), the end of the connecting rod (10) is provided with a connecting hole, and the connecting rod (10) is detachably fixedly mounted on the mounting hole (16) of the support flange (11) via the connecting hole and a fastener.

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