CN-115512923-B - Coil mounting structure, superconducting magnet and superconducting magnet assembling method

CN115512923BCN 115512923 BCN115512923 BCN 115512923BCN-115512923-B

Abstract

The invention discloses a coil mounting structure, a superconducting magnet and a superconducting magnet assembling method, wherein the coil mounting structure comprises a framework and a supporting device, wherein the framework is used for winding a coil, the supporting device comprises a connecting part and a positioning part, the connecting part is of a columnar structure, the positioning parts are respectively arranged at two ends of the connecting part, the framework is sleeved on the outer side surface of the connecting part, the two positioning parts are respectively used for being spliced on two Dewar end plates, and when the positioning parts are spliced on the Dewar end plates, the center of the framework is overlapped with the center of the Dewar end plates. The coil is installed by adopting the supporting device without a screw rod type pull rod, so that the number of the supporting devices is greatly reduced, the complexity of heat leakage and structures is reduced, the assembly efficiency is improved, the supporting device has a self-aligning function, and the concentricity can be adjusted without adjusting as long as the tolerance is controlled.

Inventors

FAN SHIYOU
ZHOU TAO
LI CHAO
LIU WEI
YANG ZHANFENG
LI YONG
LI MENG
WANG JIANBIN
MA PENG
GE ZHENGFU

Assignees

西安聚能超导磁体科技有限公司

Dates

Publication Date: 20260505
Application Date: 20220816

Claims (7)

1. A coil mounting structure, characterized by comprising: A framework (6) for winding a coil; The support device comprises a connecting part and positioning parts, wherein the connecting part is of a columnar structure, the positioning parts are respectively arranged at two ends of the connecting part, a framework (6) is sleeved on the outer side surfaces of the connecting part, the two positioning parts are respectively used for being inserted on the two Dewar end plates (3), after the positioning parts are inserted on the Dewar end plates (3), the center of the framework (6) coincides with the center of the Dewar end plates (3), positioning bosses are arranged on the outer side surfaces of the positioning parts, and the positioning bosses are used for arranging cold screen end plates (2); The tail end of the positioning boss is provided with a plurality of inserted bars; The device comprises a support device, two Dewar end plates (3), two Dewar inner cylinders (8) and two Dewar end plates (3), wherein the Dewar end plates (3) are respectively arranged on two sides of the support device, the two Dewar end plates (3) are connected together through the Dewar outer cylinders (4), slots are respectively arranged on the two Dewar end plates (3), and the two positioning parts are respectively inserted into the slots on the two Dewar end plates (3), the slots on the Dewar end plates (3) are blind slots, and one ends of the two Dewar end plates (3) which are located in the positioning parts are connected together through the Dewar inner cylinders (8); The cold screen end plates (2) are respectively positioned on two sides of the supporting device, the two cold screen end plates (2) are respectively positioned between the two Dewar end plates (3), the two cold screen end plates (2) are connected together through a cold screen outer cylinder (5), one ends of the two cold screen end plates (2) positioned in the positioning part are connected together through a cold screen inner cylinder (7), a positioning boss is arranged on the outer side face of the positioning part, the cold screen end plates (2) are arranged on the positioning boss, a plurality of inserting rods are arranged at the tail ends of the positioning boss, a plurality of inserting holes matched with the inserting rods in position and size are formed in the cold screen end plates (2), the number and the positions of inserting grooves in the Dewar end plates (3) are also matched with the inserting rods, and the inserting rods are inserted into the inserting grooves after passing through the inserting rods.
2. A coil mounting structure according to claim 1, wherein the supporting means comprises two supporting members (1) having the same structure, the supporting members (1) comprising sub-connecting portions and the positioning portions, the sub-connecting portions and the positioning portions being connected together, the bobbin (6) being provided on the sub-connecting portions of the two supporting members (1) so that the sub-connecting portions of the two supporting members (1) are spliced together to form the connecting portions.
3. A coil mounting structure according to claim 1, wherein mounting plates are provided at both ends of the connection portion, respectively, and the bobbin (6) is provided on a side surface between the two mounting plates on the connection portion.
4. A coil mounting structure according to claim 3, characterized in that the mounting plate and the armature (6) are connected together by a connecting assembly.
5. A superconducting magnet employing a coil mounting structure according to any one of claims 1-4, the superconducting magnet comprising: A framework (6) for winding a coil; The supporting device comprises a connecting part and a positioning part, wherein the connecting part is of a columnar structure, the positioning parts are respectively arranged at two ends of the connecting part, and the framework (6) is sleeved on the outer side surface of the connecting part; Dewar end plates (3) are respectively arranged on two sides of the supporting device, two Dewar end plates (3) are connected together through a Dewar outer cylinder (4), slots are formed in the two Dewar end plates (3), two positioning parts are respectively inserted into the slots of the two Dewar end plates (3), and after the positioning parts are inserted into the Dewar end plates (3), the center of the framework (6) is overlapped with the center of the Dewar end plates (3).
6. A method of assembling a superconducting magnet, applied to a superconducting magnet according to claim 5, comprising: Assembling the coil on the framework (6); -assembling the skeleton (6) on a support device; assembling cold screen end plates (2) on a supporting device, wherein the two cold screen end plates (2) are respectively positioned at two sides of the framework (6); The Dewar end plates (3) are assembled on the supporting device, and the two Dewar end plates (3) are respectively positioned on two sides of the cold screen end plate (2).
7. The method of assembling a superconducting magnet according to claim 6, further comprising: and installing the cold guide assembly, the refrigerator, the cold screen inner cylinder, the Dewar inner cylinder and the service assembly in sequence.

Description

Coil mounting structure, superconducting magnet and superconducting magnet assembling method Technical Field The present invention relates to the field of superconducting technology, and in particular, to a coil mounting structure, a superconducting magnet, and a method for assembling the superconducting magnet. Background The superconducting magnet is a core device of advanced equipment such as a maglev train, an electromagnetic gun and the like, and the performance of the superconducting magnet directly influences the quality of the whole equipment. At present, the coils of the superconducting magnet are positioned by means of a pull rod, and meanwhile, the coils are sufficiently supported by the pull rod. At present, materials with small heat conductivity coefficient and high tensile strength such as carbon fiber, titanium alloy and G10 are commonly adopted as pull rods, but due to the fact that the number of the pull rods is large, usually 8 radial pull rods and 6 axial pull rods, the cold quantity transferred by the pull rods is very large, at least one third of heat leakage is caused by the pull rods, the temperature of a coil cannot reach the temperature required by superconduction, the phenomenon of quenching is caused, the number of the pull rods is large, the structure is complex, the design and assembly process is complex, and the requirement on assembly personnel is high. Because the internal space of part of the magnet is very narrow, the complexity of the pull rod structure makes the contradiction between the heat leakage and the structural strength of the magnet more remarkable, and the design work is difficult to complete. And an increase in the number of tie rods means that the number of tie rods to be adjusted when adjusting concentricity between the mechanical center of the magnet and the center of the magnetic field is large, resulting in difficulty in concentricity adjustment. In addition, most of the current magnets are suspended in the air by means of crown blocks in the whole assembly process, the dependence on the crown blocks is unavoidable due to the limitation of the assembly sequence, but the crown blocks are very high in manufacturing cost and cannot be installed in a large quantity, and therefore the magnet assembly speed is limited. Disclosure of Invention The embodiment of the invention provides a coil mounting structure, a superconducting magnet and a superconducting magnet assembling method, which are used for solving the problems of serious heat leakage, difficult concentricity adjustment and dependence on crown blocks caused by a large number of pull rods for mounting coils in the prior art. In one aspect, an embodiment of the present invention provides a coil mounting structure including: The framework is used for winding the coil; the supporting device comprises a connecting part and positioning parts, wherein the connecting part is of a columnar structure, the positioning parts are respectively arranged at two ends of the connecting part, the framework is sleeved on the outer side face of the connecting part, the two positioning parts are respectively used for being inserted into the two Dewar end plates, and when the positioning parts are inserted into the Dewar end plates, the center of the framework is overlapped with the center of the Dewar end plates. In another aspect, an embodiment of the present invention further provides a superconducting magnet, including: The framework is used for winding the coil; the supporting device comprises a connecting part and a positioning part, the connecting part is of a columnar structure, the positioning parts are respectively arranged at two ends of the connecting part, and the framework is sleeved on the outer side surface of the connecting part; the two Dewar end plates are respectively arranged on two sides of the supporting device, the two Dewar end plates are connected together through the Dewar outer cylinder, slots are formed in the two Dewar end plates, the two positioning parts are respectively inserted into the slots in the two Dewar end plates, and when the positioning parts are inserted into the Dewar end plates, the center of the framework is overlapped with the center of the Dewar end plates. In another aspect, an embodiment of the present invention further provides a method for assembling a superconducting magnet, including: Assembling the coil on the framework; Assembling the framework on the supporting device; assembling cold screen end plates on a supporting device, wherein the two cold screen end plates are respectively positioned at two sides of a framework; The Dewar end plates are assembled on the supporting device, and the two Dewar end plates are respectively positioned at two sides of the cold screen end plate. The coil mounting structure, the superconducting magnet and the superconducting magnet assembling method have the following advantages: 1. the superconducting magnet adopting the coil mounting s