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Superconducting motor with torque tubes

A technology of superconducting motors and torque tubes, applied to electrical components, electromechanical devices, etc., can solve the problems of increasing the volume and weight of motors, and achieve the effects of compact structure, reduced heat leakage, and light weight

Active Publication Date: 2011-07-06
中国船舶重工集团公司第七一二研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the heat leakage is inversely proportional to the transfer path, in order to reduce the heat leakage, it is necessary to increase the length of the torque tube, which will inevitably increase the length of the motor rotor, thereby increasing the volume and weight of the motor

Method used

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  • Superconducting motor with torque tubes
  • Superconducting motor with torque tubes
  • Superconducting motor with torque tubes

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Example 1: Such as figure 1 , 2 Shown in , 3, be the superconducting motor that has torque tube of the present invention, it has a rotating shaft 1, torque tube 2, stator 5 and motor casing 6; Described torque tube 2 has two, is respectively fixed on two sides of rotating shaft 1 end, located in the vacuum Dewar vessel 3; the torque tube 2 is a flat ring, including the outer ring 2.1 and the inner ring 2.3 and the support 2.2 connecting the outer ring 2.1 and the inner ring 2.3; the outer ring 2.1 and the superconducting The end face of the magnet system 4 is fixedly connected; the inner ring 2.3 is fixedly connected to the rotating shaft 1 at normal temperature; the support member 2.2 is a support rib, or selected as a support plate; the material forming the torque tube 2 is at least the support member 2.2. . The outer ring 2.1 of the torque tube 2 is fixedly connected to the end face of the superconducting magnet system 4 through a connection key, or an interferen...

Embodiment 2

[0022] Example 2: The difference from the above-mentioned embodiments is that the heat insulating material used for the moment tube 2 of the integral component is an epoxy board or hard plastic that does not crack at 20K, does not become brittle, has high strength, and has good heat insulation performance.

Embodiment 3

[0023] Example 3: The difference from the above embodiment is that the heat insulating material used in the moment tube 2 of the integral component is not cracked or brittle under 20K, has high strength and good heat insulation performance, and is used for weaving and forming fiber materials and after forming. For impregnated low-temperature glue, the low-temperature glue is selected from DW3, JSF-6, ABS resin epoxy glue or epoxy resin.

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Abstract

The invention relates to a superconducting motor with torque tubes, belonging to the technical field of low-temperature transmission and motors. The superconducting motor comprises a rotary shaft, two torque tubes, a stator and a motor shell, wherein the two torque tubes are fixed at the two ends of the rotary shaft respectively; each torque tube is of a flat annular shape and comprises an outer ring, an inner ring and a support member for connecting the outer ring and the inner ring; the outer ring is fixedly connected with the end surface of a superconducting magnet system at low temperature; the inner ring is fixedly connected with the rotary shaft at normal temperature; the support member is a support rib or support plate; and for the materials forming each torque tube, at least the support member is made from a thermal insulation material. The invention has the advantages that: because each torque tube has the characteristics of high strength, low heat leakage and the like, the demands of the superconducting motor can be met better; and moreover, each torque tube does not occupy the axial length of the rotor, and the motor structure is more compact than that of the torque tube of the prior art, so that the entire motor has smaller volume and lighter weight.

Description

technical field [0001] The invention relates to a superconducting motor with a torque tube, which belongs to the technical field of low-temperature transmission and motors. Background technique [0002] Superconducting motors require superconducting magnets to always operate in a superconducting state at a deep low temperature. Usually, superconducting magnets are placed in an adiabatic vacuum environment. Therefore, they must be connected by a so-called torque tube with high strength and poor heat transfer performance. The rotor in the low temperature state and the shaft end in the normal temperature state, so as to realize the functions of heat insulation, bearing the weight of the rotor and transmitting torque. Therefore, the torque tube is an important part of the superconducting motor, which affects the size, volume, heat leakage effect and cooling power of the motor, and also plays an important role in the reliability of the superconducting motor. There are many kinds...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K55/00
Inventor 谢峰郑军代义军苏浩杨高
Owner 中国船舶重工集团公司第七一二研究所
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