CN208797855U - The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system - Google Patents
The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system Download PDFInfo
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- CN208797855U CN208797855U CN201821314239.6U CN201821314239U CN208797855U CN 208797855 U CN208797855 U CN 208797855U CN 201821314239 U CN201821314239 U CN 201821314239U CN 208797855 U CN208797855 U CN 208797855U
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Abstract
The utility model relates to be suitable for the poly- magnetic mechanism of permanent magnetism of high temperature superconducting magnetic suspension system, including sealing Dewar, the shaft that is installed through in sealing Dewar, be set in the permanent magnet fitted closely on the outside of shaft middle section and with shaft, be set on the outside of permanent magnet middle section and with the superconduction block material ring of permanent magnet clearance fit and the heat conduction ring being bonded on superconduction block material ring lateral wall.Gap between the permanent magnet and superconduction block material ring is greater than 0.The permanent magnet includes several permanent-magnetic clamps and several ferromagnetic rings, and permanent-magnetic clamp is alternately arranged with ferromagnetic ring, and the magnetizing direction of adjacent permanent magnet ring is opposite.The poly- magnetic mechanism of permanent magnetism described in the utility model suitable for high temperature superconducting magnetic suspension system has best axial force and radial force, can provide strong and stable external magnetic field strength, to enhance suspending efficiency, improve the stability of superconducting magnetic suspension system.
Description
Technical field
The utility model relates to high temperature superconducting magnetic suspension system technical fields, and in particular to be suitable for high-temperature superconducting magnetic levitation
The poly- magnetic mechanism of the permanent magnetism of system.
Background technique
The bulk of the phenomenon that complete diamagnetic characteristic and flux pinning of based superconductor, high temperature superconducting materia preparation can be steady
Surely (suspension) is suspended above or below permanent magnet, and after being applied to one initial torque of permanent magnet, it will be surrounded and block
The symmetry axis of material interaction force rotates, and the hts magnetic levitation bearing (SMB) made using this principle is applied to
In flywheel energy storage system, with no Mechanical Contact, self-stabilization, advantages of simple structure and simple.
Flywheel energy storage will improve its energy storage efficiency (including energy storage density, transfer efficiency), and flywheel must just be continuously improved
Revolving speed reduces the energy loss of bearing and windage, and effective method is exactly to realize the suspension high speed rotation of flywheel rotor, and one
Kind of method is suspended using electromagnetic force, another then be using super-conductive magnetic suspension technology, and Basic Mechanism is complete for superconductor
Diamagnetic characteristic, i.e. superconductor are in after superconducting state, and any magnetic field cannot all penetrate it in vivo, are not necessarily to any external force, permanent magnetism
Physical efficiency is suspended on superconductor.
Superconduction flywheel energy storage is exactly that super-conductive magnetic suspension is utilized to realize that frictionless bearing realizes a kind of high-speed rotating efficient storage
Energy technology, for electromagnetic repulsion force suspension, it has two big obvious technical advantages: first is that it is not necessarily to energy consumption and electromagnetic force
Size, which accurately controls, can be achieved with permanent suspension (as long as in superconducting state)；Second is that it has self-stable characteristic, that is, it is suspended in super
When being deflected by lateral active force, superconductor one kind distinctive the phenomenon that being called flux pinning, will generate rotor on conductor
Reaction force corrects deflection, therefore stability is high when high speed rotation, and electromagnetic suspension does not have this ability, and high speed is revolved
It is eliminated when turning very big from the momentum such as lateral impact force control difficulty.
Utility model content
The purpose of this utility model is to provide a kind of poly- magnetic mechanisms of the permanent magnetism suitable for high temperature superconducting magnetic suspension system, should
Mechanism can enhance suspending efficiency, improve the stability of superconducting magnetic suspension system.
To achieve the above object, the utility model uses following technical scheme:
The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system, including sealing Dewar, are installed through sealing Du
Shaft in watt, be set in the permanent magnet fitted closely on the outside of shaft middle section and with shaft, be set on the outside of permanent magnet middle section and
With the superconduction block material ring of permanent magnet clearance fit and the heat conduction ring being bonded on superconduction block material ring lateral wall.The permanent magnet with
Gap between superconduction block material ring is greater than 0.The permanent magnet includes several permanent-magnetic clamps and several ferromagnetic rings, permanent-magnetic clamp and ferromagnetic ring
It is alternately arranged, and the magnetizing direction of adjacent permanent magnet ring is opposite.
Further, the permanent magnet, superconduction block material ring and heat conduction ring are respectively positioned in sealing Dewar, so that component operation exists
Vacuum environment；The middle section of the shaft is located in sealing Dewar, and upper and lower ends are pierced by the top and bottom of sealing Dewar respectively
And it seals.
Further, the shaft uses alloy steel material.
Further, the permanent-magnetic clamp uses NdFeB (neodymium iron boron) material.
Further, the superconduction block material ring uses non-ideal second type high temp superconduction YBa2Cu3O7-ΔMaterial has
Pinning effect realizes self-stabilization.
Further, the heat conduction ring uses oxygenless copper material, and heat conduction ring is by Low-temperature epoxy glue sticking in superconduction block material
On the lateral wall of ring.
Further, the sealing Dewar uses non-magnetic rustproof Steel material.
From the above technical scheme, it by using high-temperature superconducting magnetic levitation Three-dimensional numerical calculation program, studies permanent magnetism and turns
Sub- magnetic pole and high-temperature superconducting block seed crystal arranged relative structure, poly- magnet ring thickness, semidiameter inside and outside permanent-magnetic clamp, the working clearance,
Influence of the operating temperature to high-temperature superconducting magnetic levitation transverse bearing stiffness characteristics, chooses the optimal value of optimal structure and parameter
(section) optimizes high-temperature superconducting magnetic levitation transverse bearing to reach, so that mechanism described in the utility model has most preferably
Axial force and radial force can provide strong and stable external magnetic field strength to enhance suspending efficiency and improve super-conductive magnetic suspension
The stability of system.It, can using the poly- magnetic mechanism of the permanent magnetism suitable for high temperature superconducting magnetic suspension system described in the utility model
Make superconducting magnetic levita bearing working at a temperature of 60K, the suspending power of axis offset 10mm is greater than 3000N, and the suspending power provided is greater than
6000N。
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model.
Wherein:
1, shaft, 2, permanent magnet, 3, superconduction block material it is bad, 4, heat conduction ring, 5, sealing Dewar, 6, permanent-magnetic clamp, 7, ferromagnetic ring, 8,
Magnetizing direction.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system as Figure 1-Figure 2, including sealing Dewar 5,
The shaft 1 being installed through in sealing Dewar 5, the permanent magnet 2, the set that are set in 1 middle section of shaft outside and are fitted closely with shaft 1
Be located on the outside of 2 middle section of permanent magnet and with the superconduction block material ring 3 of 2 clearance fit of permanent magnet and be bonded in 3 outside of superconduction block material ring
Heat conduction ring 4 on wall.Gap between the permanent magnet 2 and superconduction block material ring 3 is greater than 0.The permanent magnet 2 includes several permanent magnetism
Ring 6 and several ferromagnetic rings 7, permanent-magnetic clamp 6 are alternately arranged with ferromagnetic ring 7, and the magnetizing direction of adjacent permanent magnet ring 6 is opposite.Shaft 1,
Permanent magnet 2 and superconduction block material ring 3 are coaxially disposed.
Further, the permanent magnet 2, superconduction block material ring 3 and heat conduction ring 4 are respectively positioned in sealing Dewar 5, so that component work
Make in vacuum environment；The middle section of the shaft 1 is located in sealing Dewar 5, and upper and lower ends are respectively from the top and bottom of sealing Dewar 5
Portion is pierced by and seals.Specifically, the top and bottom of sealing Dewar 5 are respectively equipped with through-hole, the upper and lower ends of shaft 1 respectively from
After the top and bottom of sealing Dewar 5 pass through, sealing element is equipped between 1 outer wall of shaft and through-hole wall, to guarantee to seal Dewar 5
Inside is vacuum environment.
Further, the shaft 1 uses high-strength alloy Steel material, to remain unchanged shape under defined revolving speed.
Gap between shaft and permanent magnet is 0, cooperation that the two is seamless.
Further, the permanent-magnetic clamp 6 uses NdFeB (neodymium iron boron) material.
Further, the superconduction block material ring 3 uses non-ideal second type high temp superconduction YBa2Cu3O7-ΔMaterial has
Pinning effect realizes self-stabilization.Permanent magnet and superconduction block material interannular have certain gap, the polarity and high-temperature superconductor of permanent magnet
Bulk ring Relative distribution arrangement architecture, superconduction block material ring axis center is consistent with ferromagnetic ring center, and superconduction block material ring can be by three groups
Or multiple groups are constituted.Permanent magnet is the magnetic field field source of superconduction block material ring and ferromagnetic ring adjusts Distribution of Magnetic Field and improves the uniform of magnetic field
Property, the magnetic pole of p-m rotor is assembled at ferromagnetic ring and formed to the magnetic line of force.Superconduction block material ring is generally by muti-piece high-temperature superconducting block
It is spliced.
Further, the heat conduction ring 4 uses oxygenless copper material, and heat conduction ring 4 is by Low-temperature epoxy glue sticking in superconducting block
On the lateral wall of material ring 3, heat conduction ring makes superconduction block material ring have good heat-conducting effect.
Further, the sealing Dewar 5 uses non-magnetic rustproof Steel material.
High temperature superconducting magnetic suspension system needs certain space displacement amount to motivate its suspending power, needs to its suspension
It can be carried out accurate calculating and optimization.Axial rigidity and radial rigidity be in high-temperature superconducting magnetic levitation transverse bearing practical application the most
Important characteristic.The poly- magnetic mechanism of permanent magnetism described in the utility model suitable for high temperature superconducting magnetic suspension system, using permanent magnet
For superconduction block material ring magnetic field field source and ferromagnetic ring adjusts and Distribution of Magnetic Field and improves magnetic field's regularity, the magnetic line of force is at ferromagnetic ring
The magnetic pole for assembling and being formed p-m rotor realizes suspension and self-stabilization using the diamagnetism and pinning effect of superconductor.This reality
There is strong external magnetic field strength, axially and radially bearing capacity with the novel mechanism, had both axial bearing and radial axle
The compound action held.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (7)
1. being suitable for the poly- magnetic mechanism of permanent magnetism of high temperature superconducting magnetic suspension system, it is characterised in that: including sealing Dewar, through installation
In the permanent magnet for sealing the shaft in Dewar, being set on the outside of shaft middle section and being fitted closely with shaft, it is set in permanent magnet
Section outside and with the superconduction block material ring of permanent magnet clearance fit and the heat conduction ring being bonded on superconduction block material ring lateral wall；It is described
Gap between permanent magnet and superconduction block material ring is greater than 0；The permanent magnet includes several permanent-magnetic clamps and several ferromagnetic rings, permanent-magnetic clamp
It is alternately arranged with ferromagnetic ring, and the magnetizing direction of adjacent permanent magnet ring is opposite.
2. the poly- magnetic mechanism of the permanent magnetism according to claim 1 suitable for high temperature superconducting magnetic suspension system, it is characterised in that: institute
Permanent magnet, superconduction block material ring and heat conduction ring is stated to be respectively positioned in sealing Dewar；The middle section of the shaft is located in sealing Dewar, up and down
Both ends are pierced by and seal at the top and bottom of sealing Dewar respectively.
3. the poly- magnetic mechanism of the permanent magnetism according to claim 1 suitable for high temperature superconducting magnetic suspension system, it is characterised in that: institute
Shaft is stated using alloy steel material.
4. the poly- magnetic mechanism of the permanent magnetism according to claim 1 suitable for high temperature superconducting magnetic suspension system, it is characterised in that: institute
Permanent-magnetic clamp is stated using NdFeB material.
5. the poly- magnetic mechanism of the permanent magnetism according to claim 1 suitable for high temperature superconducting magnetic suspension system, it is characterised in that: institute
Superconduction block material ring is stated using non-ideal second type high temp superconduction YBa2Cu3O7-ΔMaterial.
6. the poly- magnetic mechanism of the permanent magnetism according to claim 1 suitable for high temperature superconducting magnetic suspension system, it is characterised in that: institute
Heat conduction ring is stated using oxygenless copper material, heat conduction ring is by Low-temperature epoxy glue sticking on the lateral wall of superconduction block material ring.
7. the poly- magnetic mechanism of the permanent magnetism according to claim 1 suitable for high temperature superconducting magnetic suspension system, it is characterised in that: institute
Sealing Dewar is stated using non-magnetic rustproof Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821314239.6U CN208797855U (en) | 2018-08-15 | 2018-08-15 | The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821314239.6U CN208797855U (en) | 2018-08-15 | 2018-08-15 | The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system |
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| CN208797855U true CN208797855U (en) | 2019-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988689A (en) * | 2018-08-15 | 2018-12-11 | 中国电子科技集团公司第十六研究所 | The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system |
-
2018
- 2018-08-15 CN CN201821314239.6U patent/CN208797855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988689A (en) * | 2018-08-15 | 2018-12-11 | 中国电子科技集团公司第十六研究所 | The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system |
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