Suspension device for a superconducting magnet

Abstract

The invention discloses a suspension device for a superconducting magnet, which comprises a room temperature container, a cold mass, a support rod and a pre-tightening rod. The cold mass is arranged inside the room temperature container, and a vacuum layer is arranged between the cold mass and the room temperature container. The inner surface of the room temperature container is symmetrically provided with at least two room temperature container reinforcements; one end of the two support rods is connected to the lower part of the room temperature container reinforcement, and the other end obliquely passes through the vacuum layer to connect with the cold mass; one end of the two pretension rods It is connected to the reinforced upper part of the room temperature container, and the other end obliquely passes through the vacuum layer to connect with the cold mass. The invention has the advantages of simple structure, convenient assembly, uniform stress, high reliability and low cost.

Description

technical field [0001] The invention relates to the field of magnetic resonance imaging, in particular to a suspension device for a superconducting magnet. Background technique [0002] In the superconducting magnet used for MRI, the superconducting coil is enclosed in the low-temperature cavity, and a vacuum interlayer is formed between the low-temperature cavity and the room temperature cavity, and the superconducting magnet suspension system passes through the vacuum interlayer to realize the translation of the superconducting magnet And rotation limit, to meet the use requirements. In the current embodiment, the superconducting magnet is suspended on a room temperature cavity with a beam structure. The suspension rod can be a straight rod or a ring rod of carbon fiber, glass fiber, stainless steel, titanium alloy. , or set the tie rods in the direction with a larger axial component to increase the stiffness of the superconducting magnet rotating along the vertical axis....

AI Technical Summary

Problems solved by technology

In the current embodiment, the superconducting magnet is suspended on a room temperature cavity with a beam structure. The suspension rod can be a straight rod or a ring rod of carbon fiber, glass fiber, stainless steel, titanium alloy. , or set the tie rods in the direction with a larger axial component to increase the stiffness of the superconducting magnet rotating along the vertical axis. These suspension systems are characterized by four or more suspension rods on the top to bear the weight of the magnet, and the bottom Four or more suspension rods exert preload; such a structure needs to set four or more holes on the room temperature shell to facilitate the installation of the suspension system, which has complex structure, low reliability, and economical Bad Sex Disadvantages

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