Turnover device for superconducting coil of magnetic resonance magnet

Abstract

The utility model relates to the technical field of superconducting magnetic resonance magnets, in particular to a magnetic resonance magnet superconducting coil turnover device which comprises a base frame and a coil placing frame rotationally installed on the base frame, and a turnover avoiding area is arranged at the position, corresponding to the coil placing frame, of the base frame. The coil placing rack comprises an arc-shaped supporting plate and a tray which is arranged on the supporting plate and is matched with the superconducting coil; and a detachable hoop is fixedly mounted on the coil placement frame. The coil placing frame comprises two end plates arranged at intervals and a plurality of supporting plates fixed between the two end plates. A positioning baffle protruding upwards is fixed to the supporting plate. The tray comprises an arc plate matched with the shape of the superconducting coil and a positioning plate fixed on the upper side of the arc plate, and the positioning plate is matched with the shape of the superconducting coil; a limiting plate matched with the positioning baffle is arranged on the lower side of the arc plate. After the superconducting coil is fixed on the turnover device, the turnover of the superconducting coil is facilitated, and the turnover device has the advantages of simple structure, convenience in operation, high safety and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of superconducting magnetic resonance magnets, in particular to a magnetic resonance magnet superconducting coil flipping device. Background Art

[0002] The superconducting coil is the core component of the superconducting magnetic resonance magnet. The superconducting coil consists of a main coil and a secondary coil. The superconducting coil is wound by superconducting wire. The gaps between the superconducting wires in the superconducting coil must be filled with resin and cured to fix the superconducting wire. After the coil is energized, the superconducting wire will form a superconducting state at the temperature of liquid helium. After the superconducting state is formed, the superconducting wire has no resistance and no current loss. When the coil is energized, a stable strong magnetic field will be generated. If the superconducting wire vibrates, it will cause quenching and huge losses. Therefore, the gaps between the superconducting wires in the coil must be filled with resin and cured to ensure the fixation of the superconducting wire. After the superconducting coil resin is cured, it is strictly forbidden to damage the coil with impact force.

[0003] In the prior art, the secondary coil of the superconducting coil is located outside the main coil, and the secondary coil is an integrated type, and the main coil and the secondary coil are fixedly connected by a welding connection ring. The superconducting coil is precisely designed, and the relative position of the main coil and the secondary coil, the number of coil turns, etc. are strictly calculated. The accuracy directly determines the magnetic field accuracy and stability of the superconducting coil. Therefore, the assembly of the superconducting coil requires great rigor. If the relative position exceeds the allowable error during the assembly process, the coil is damaged by impact, etc., it will cause irreversible consequences and serious losses.

[0004] When assembling the superconducting coil, the superconducting coil needs to be flipped. In the prior art, the flipping of the superconducting coil requires the superconducting coil to be lifted by a crane, and then positioned and assembled by manual control, which requires the cooperation of multiple people. Therefore, it is difficult to control the consistency of multi-person collaboration during the assembly process, which can easily cause the superconducting coil to fall to the ground too fast, causing impact damage to the superconducting coil. If the superconducting coil suddenly falls to the ground, personnel may be injured if they fail to dodge in time; the risk of accidents is high. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a magnetic resonance magnet superconducting coil flipping device in view of the above shortcomings. After the superconducting coil is fixed to the flipping device, the superconducting coil can be conveniently flipped. The utility model has the advantages of simple structure, convenient operation and high safety.

[0006] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0007] A magnetic resonance magnet superconducting coil flipping device comprises a base frame and a coil placement frame rotatably mounted on the base frame, a flipping avoidance zone is provided on the base frame at a position corresponding to the coil placement frame; the coil placement frame comprises an arc-shaped support plate and a tray mounted on the support plate and adapted to the superconducting coil; a detachable clamp is fixedly mounted on the coil placement frame.

[0008] As an improvement, the coil placement frame includes two end plates arranged at intervals and a plurality of support plates fixed between the two end plates.

[0009] As an improvement, a positioning baffle protruding upward is fixed on the support plate; the tray includes an arc plate adapted to the shape of the superconducting coil and a positioning plate fixed on the upper side of the arc plate, and the positioning plate is adapted to the shape of the superconducting coil; a limiting plate adapted to the positioning baffle is provided on the lower side of the arc plate.

[0010] As an improvement, the clamp is semicircular, and both ends of the clamp are provided with a first fixing part, and both ends of the coil placement frame are provided with a second fixing part, and the first fixing part is detachably fixed to the second fixing part by a fastener.

[0011] As an improvement, a driving shaft and a driven shaft are respectively provided at both ends of the coil placement frame, and both the driving shaft and the driven shaft are rotatably mounted on the base frame.

[0012] As an improvement, a worm gear reduction mechanism is fixed on the base frame, a hand wheel is installed at the input end of the worm gear reduction mechanism, and the output end of the worm gear reduction mechanism is directly connected to the driving shaft. The worm gear reduction mechanism is a worm gear reduction mechanism with a self-locking mechanism.

[0013] As an improvement, a first locking hole and a second locking hole are provided at one end of the coil placement frame, a first pin hole matched with the first locking hole is provided on the base frame, and a second pin hole matched with the second locking hole is provided on the base frame.

[0014] As an improvement, the base frame is provided with a horizontally arranged, height-adjustable lower baffle, which supports the end of the superconducting magnetic resonance magnet from the bottom when in use.

[0015] As an improvement, the base frame is provided with a crossbeam, on which a vertically arranged screw rod is mounted, and the height of the screw rod is adjustable; the lower baffle is mounted on the screw rod.

[0016] The utility model adopts the above technical solution, and has the following advantages compared with the prior art:

[0017] 1. When the magnetic resonance magnet superconducting coil flipping device of the utility model is used, the superconducting coil is placed on the flipping tool, and the superconducting coil is fixed on the coil placement frame using a clamp to ensure that the superconducting coil will not fall when flipping.

[0018] 2. When the superconducting coil is flipped into place, use the lower baffle to support the end of the superconducting magnetic resonance magnet from the bottom to ensure that the coil is placed stably.

[0019] 3. When flipping, a worm gear reduction mechanism with a self-locking function is used to ensure that the superconducting coil will not fall rapidly due to its own gravity at any angle position during the reversal process. After reaching the flip target position, a locking pin is used between the first locking hole and the first pin hole, or between the second locking hole and the second pin hole to lock the flip mechanism.

[0020] 4. By replacing trays and clamps of different specifications and adjusting the height of the lower baffle, it can be used for assembling superconducting coils of different diameters or lengths. The superconducting coils can be easily flipped during welding to ensure welding and welding quality.

[0021] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a magnetic resonance magnet superconducting coil flipping device of the utility model;

[0023] Figure 2 for Figure 1 The structural diagram of the center coil placement rack;

[0024] Figure 3 for Figure 1 Structural diagram of the middle base frame;

[0025] Figure 4 for Figure 1 Structural diagram of the middle tray;

[0026] Figure 5 for Figure 1 Structural diagram of the middle hoop;

[0027] Figure 6 It is a simplified structural diagram of the superconducting coil;

[0028] Figure 7 The utility model is a reference for the use of a magnetic resonance magnet superconducting coil flip device. Figure 1 ;

[0029] Figure 8 The utility model is a reference for the use of a magnetic resonance magnet superconducting coil flip device. Figure 2 ;

[0030] Wherein: 1-base frame, 2-coil placement frame, 3-flip avoidance area, 4-support plate, 5-tray, 6-hoop, 7-first fixing part, 8-driving shaft, 9-driven shaft, 10-worm gear reduction mechanism, 11-handwheel, 12-first locking hole, 13-second locking hole, 14-first pin hole, 15-second pin hole, 16-end plate, 17-positioning baffle, 18-arc plate, 19-positioning plate, 20-limiting plate, 21-second fixing part, 22-lower baffle, 23-crossbeam, 24-screw, 30-superconducting coil. DETAILED DESCRIPTION

[0031] Example

[0032] like Figures 1 to 8 As shown together, a magnetic resonance magnet superconducting coil flipping device includes a base frame 1 and a coil placement frame 2 rotatably mounted on the base frame 1, and a flipping avoidance area 3 is provided on the base frame 1 at a position corresponding to the coil placement frame 2. The coil placement frame 2 includes a plurality of arc-shaped support plates 4 arranged at intervals and a tray 5 detachably mounted on the support plates 4 and adapted to the superconducting coil 30. A detachable clamp 6 is fixedly mounted on the coil placement frame 2, and the superconducting coil 30 can be fixed on the coil placement frame 2 by the clamp 6. As shown in FIG. Figure 5 As shown, the coil placement frame 2 includes two spaced end plates 16 and a plurality of support plates 4 fixed between the two end plates 16. In this embodiment, preferably, the number of the arc-shaped support plates 4 is five.

[0033] like Figure 1 , Figures 2 to 4 As shown together, a positioning baffle 17 protruding upward is fixed on the support plate 4; the tray 5 includes an arc plate 18 adapted to the shape of the superconducting coil 30 and two spaced positioning plates 19 fixed on the upper side of the arc plate 18, and the positioning plates 19 are adapted to the shape of the superconducting coil 30. A limit plate 20 adapted to the positioning baffle 17 is provided on the lower side of the arc plate 18.

[0034] like Figure 5 As shown, the hoop 6 is semicircular, and both ends of the hoop 6 are provided with a first fixing portion 7. Both ends of the coil placement frame 2 are provided with a second fixing portion 21, and the first fixing portion 7 is detachably fixedly mounted on the second fixing portion 21 of the coil placement frame 2 by a fastener.

[0035] A driving shaft 8 and a driven shaft 9 are respectively provided at both ends of the ring placing frame 2, and both the driving shaft 8 and the driven shaft 9 are rotatably mounted on the base frame 1. A worm gear reduction mechanism 10 is fixed on the base frame 1, a hand wheel 11 is installed at the input end of the worm gear reduction mechanism 10, and the output end of the worm gear reduction mechanism 10 is directly connected to the driving shaft 8.

[0036] A first locking hole 12 and a second locking hole 13 are provided at one end of the coil placement frame 2 , a first pin hole 14 matched with the first locking hole 12 is provided on the base frame 1 , and a second pin hole 15 matched with the second locking hole 13 is provided on the base frame 1 .

[0037] The base frame 1 is provided with a horizontally arranged lower baffle 22 with adjustable height, and the lower baffle supports the end of the superconducting magnetic resonance magnet from the bottom when in use. The base frame 1 is provided with a crossbeam 23, and a vertically arranged screw rod 24 is installed on the crossbeam 23, and the height of the screw rod 24 is adjustable; the lower baffle 22 is installed on the screw rod 24.

[0038] like Figure 7 As shown, when in use, first install the locking pin between the first locking hole and the first pin hole to lock the flip mechanism. Place the superconducting coil 30 on the coil placement rack 2, use the clamp 6 to hold the superconducting coil 30 from the upper side and fix the superconducting coil 30 on the coil placement rack 2. Adjust the height of the lower baffle 22, and support the end of the superconducting magnetic resonance magnet from the lower side of the lower baffle 22 to ensure that the coil is placed stably. After the superconducting coil 30 is fixed, it is convenient to assemble or weld the superconducting coil 30.

[0039] like Figure 8 As shown, when the superconducting coil 30 needs to be flipped, first pull out the locking pin between the first locking hole 12 and the first pin hole 14, and adjust the height of the lower baffle 22 so that the height of the lower baffle 22 is lowered and does not interfere with the flipping of the superconducting coil 30. Then, turn the hand wheel 11 to drive the coil placement frame 2 and the superconducting coil 30 to rotate together through the worm gear reduction mechanism 10. When it is turned to the target position, that is, when the superconducting coil 30 is placed vertically, install the locking pin between the second locking hole 13 and the second pin hole 15 to lock the flipping mechanism. Adjust the height of the lower baffle 22, and support the end of the superconducting magnetic resonance magnet from the bottom of the lower baffle 22 to ensure that the coil is placed stably. At this time, continue to assemble or weld the superconducting coil 30.

[0040] By replacing the trays 4 and the clamps 6 of different specifications and adjusting the height of the lower baffle 22, the superconducting coil flipping device can be used for assembling superconducting coils 30 of different diameters or lengths.

[0041] In this embodiment, the structure and use of the superconducting coil flipping device are described by taking the superconducting coil 30 in the horizontal and vertical positions as examples. In actual application, locking holes and pin holes can be set at multiple positions according to the assembly requirements of the superconducting coil 30, so that the superconducting coil 30 can stay at the required position and be positioned, so as to facilitate the assembly of the superconducting coil 30.

[0042] When the superconducting coil flipping device is used, the worm gear reduction mechanism 10 is used to ensure the stability of the superconducting coil 30 during rotation. The superconducting coil 30 can be stopped and locked at the target position, thereby enhancing the stability of the superconducting coil 30 and ensuring that the superconducting coil 30 will not flip itself due to its own gravity, causing injuries to personnel and damage to the coil. When the superconducting coil flipping device is used, one person can flip it, greatly reducing labor, increasing work efficiency, and ensuring the safety of the staff and the coil.

[0043] In summary, the utility model provides a magnetic resonance magnet superconducting coil flipping device, which facilitates the flipping of the superconducting coil after the superconducting coil is fixed to the flipping device, and has the advantages of simple structure, convenient operation, high safety, etc.

[0044] 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 magnetic resonance magnet superconducting coil flipping device, characterized in that: The invention comprises a base frame (1) and a coil placement frame (2) rotatably mounted on the base frame (1); a turning avoidance area (3) is provided at a position on the base frame (1) corresponding to the coil placement frame (2); the coil placement frame (2) comprises an arc-shaped support plate (4) and a tray (5) mounted on the support plate (4) and adapted to the superconducting coil; and a detachable clamp (6) is fixedly mounted on the coil placement frame (2).

2. The magnetic resonance magnet superconducting coil flipping device according to claim 1, characterized in that: The coil placement frame (2) comprises two end plates (16) arranged at intervals and a plurality of support plates (4) fixed between the two end plates (16).

3. The magnetic resonance magnet superconducting coil flipping device according to claim 2, characterized in that: A positioning baffle (17) protruding upward is fixed on the support plate (4); the tray (5) comprises an arc plate (18) adapted to the shape of the superconducting coil and a positioning plate (19) fixed on the upper side of the arc plate (18), the positioning plate (19) adapted to the shape of the superconducting coil; a limit plate (20) adapted to the positioning baffle (17) is provided on the lower side of the arc plate (18).

4. The magnetic resonance magnet superconducting coil flipping device according to claim 1, characterized in that: The hoop (6) is semicircular, and both ends of the hoop (6) are provided with a first fixing portion (7); both ends of the coil placement frame (2) are provided with a second fixing portion (21), and the first fixing portion (7) is detachably fixed to the second fixing portion (21) by means of a fastener.

5. The magnetic resonance magnet superconducting coil flipping device according to claim 1, characterized in that: A driving shaft (8) and a driven shaft (9) are respectively provided at both ends of the coil placement frame (2), and the driving shaft (8) and the driven shaft (9) are both rotatably mounted on the base frame (1).

6. The magnetic resonance magnet superconducting coil flipping device according to claim 5, characterized in that: A worm gear reduction mechanism (10) is fixed on the base frame (1), a hand wheel (11) is installed at the input end of the worm gear reduction mechanism (10), and an output end of the worm gear reduction mechanism (10) is directly connected to the driving shaft (8).

7. The magnetic resonance magnet superconducting coil flipping device according to claim 1, characterized in that: A first locking hole (12) and a second locking hole (13) are provided at one end of the coil placement frame (2); a first pin hole (14) matched with the first locking hole (12) is provided on the base frame (1); and a second pin hole (15) matched with the second locking hole (13) is provided on the base frame (1).

8. The magnetic resonance magnet superconducting coil flipping device according to any one of claims 1 to 7, characterized in that: The base frame (1) is provided with a horizontally arranged lower baffle (22) whose height is adjustable.

9. The magnetic resonance magnet superconducting coil flipping device according to claim 8, characterized in that: The base frame (1) is provided with a crossbeam (23), on which a vertically arranged screw rod (24) is mounted, and the height of the screw rod (24) is adjustable; the lower baffle plate (22) is mounted on the screw rod (24).

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