CN106898455A - A kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high - Google Patents
A kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high Download PDFInfo
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- CN106898455A CN106898455A CN201710126900.4A CN201710126900A CN106898455A CN 106898455 A CN106898455 A CN 106898455A CN 201710126900 A CN201710126900 A CN 201710126900A CN 106898455 A CN106898455 A CN 106898455A
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- China
- Prior art keywords
- vacuum
- magnetic flux
- toroidal magnet
- guideway
- wire duct
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/202—Electromagnets for high magnetic field strength
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high, it is characterised in that：Include vacuum cavity, the magnetic flux toroidal magnet high inside vacuum cavity, connected by wire duct between the vacuum cavity and magnetic flux toroidal magnet high, bellows is set with the wire duct, guideway is set with wire duct below the bellows, by rotating installation between self-lubricating linear bearing between the guideway and wire duct, and the upper end of guideway, inside vacuum cavity, lower end is outside vacuum cavity.A kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high proposed by the present invention can ensure the vacuum environment inside vacuum cavity while magnetic flux toroidal magnet linear slide high is conducted, it is ensured that magnetic flux toroidal magnet high normally works.
Description
Technical field：
The present invention relates to space plasma science analog system device field of engineering technology, relate generally to a kind of for magnetic flux high
Motion seal structure in toroidal magnet high vacuum environment.
Background technology：
Magnetic flux toroidal magnet high is primarily used to study what the plasma that magnetic flux toroidal magnet high produces was produced with magnetic field of the earth
The part phenomenon that magnetosheath plasma interacts with earth magnetosphere under the conditions of Plasma Interaction simulation different magnetic field, it is special
It is not sunny slope Magnetic reconnection process.And magnetic flux toroidal magnet high needs to work under vacuum conditions, so design
A kind of motion seal structure that can be used in magnetic flux toroidal magnet high vacuum environment high is very important.
The content of the invention：
The object of the invention is exactly to make up the defect of prior art, there is provided one kind is used for magnetic flux toroidal magnet high vacuum environment high
In motion seal structure, to meet the vacuum environment needed for magnetic flux toroidal magnet high work.
The present invention is achieved by the following technical solutions：
A kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high, it is characterised in that：Include vacuum chamber
Body, the magnetic flux toroidal magnet high inside vacuum cavity, by leading between the vacuum cavity and magnetic flux toroidal magnet high
Spool road is connected, and bellows is set with the wire duct, and the axis of guide is set with the wire duct below the bellows
Set, is installed by rotating between self-lubricating linear bearing between the guideway and wire duct, and guideway upper end
Inside vacuum cavity, lower end is outside vacuum cavity.
Described magnetic flux toroidal magnet lower end high is welded with high vacuum knife-edge flange, and the bellows upper and lower end face is all welded
There is vacuum edge of a knife flange, the wire duct outer wall is welded with upper and lower two high vacuum knife-edge flanges, the magnetic flux annular magnetic high
Body is connected by the vacuum edge of a knife flange of lower end with the vacuum edge of a knife flange of conduit upper end, the vacuum of the wire duct lower end
Edge of a knife flange is then connected with the vacuum edge of a knife flange of bellows upper end, on the vacuum edge of a knife flange and guideway of bellows lower end
The flange connection at end.
Described bellows, guideway, the shielding of vacuum vacuum edge of a knife flange composition, can intercept air and enter vacuum
Inside cavity, keeps the vacuum environment inside vacuum cavity；
Described self-lubricating linear bearing is bolted on guideway, and self-lubricating linear bearing inner ring sleeve is in conduit
On road.
Two groups of self-lubricating linear sliding bearings are installed inside described guideway, have between two groups of bearings it is certain between
Every self-lubricating linear sliding bearing outside is fixed on guideway, and inner ring surface is in close contact with wire duct outer wall, composition is slided
Dynamic kinematic pair, is lubricated, it is to avoid the pollution that fluid lubricant is caused to vacuum cavity using the self-lubricating property of bearing, can be constrained
Wire duct is only slided up and down in bearing inner ring, so as to play guide effect.
It is an advantage of the invention that：
A kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high proposed by the present invention can be high in conduction
Ensure the vacuum environment inside vacuum cavity while magnetic flux toroidal magnet linear slide, it is ensured that magnetic flux toroidal magnet high is normal
Work.
Brief description of the drawings：
Fig. 1 is overall structure schematic perspective view of the present invention.
Fig. 2 is the partial enlarged drawing of motion seal in structure of the present invention.
Fig. 3 is the sectional view of motion seal part in structure of the present invention.
Fig. 4 is the mounting structure schematic diagram when present invention is used.
Specific embodiment：
Referring to accompanying drawing.
As shown in Figure 1, 2, 3.A kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high, main bag
Include the vacuum cavity 4 in the external world, magnetic flux toroidal magnet 6 high, wire duct 1, bellows 2, guideway 3 and self-lubricating straight line
Sliding bearing 5；Magnetic flux toroidal magnet high separates on the whole in vacuum cavity internal work with the external world；Magnetic flux toroidal magnet 6 high
It is connected by high vacuum knife-edge flange with the upper end of wire duct 1, it is ensured that the unfailing performance of sealing；It is same with the outer wall of wire duct 1
High vacuum knife-edge flange is welded with, the high vacuum knife-edge flange with the upper end of bellows 2 is connected；The lower end of bellows 2 passes through Gao Zhen
Empty edge of a knife flange is connected with the high vacuum knife-edge flange on the top of guideway 3；The lower ending opening of guideway 3 is outside vacuum cavity
Air in, outer wall is welded to connect with vacuum cavity, inside be connected with self-lubricating linear sliding bearing 5；Linear slide bearing 5
Inner ring is in close contact with conduit and constitutes sliding friction pair, has larger interval between two groups of linear slide bearings, can support
Wire duct 1, while can also constrain wire duct 1 can only be slided up and down in two groups of inner ring of linear slide bearing, so as to rise
To guide effect；Due to the self-lubricating property of self-lubricating linear sliding bearing, good lubricant effect can be played, it is to avoid often
Pollution of the rule fluid lubricant to vacuum chamber.By with bellows 2, high vacuum knife-edge flange, guideway 3 and wire duct
The 1 closed narrow space for being formed, can completely cut off vacuum and air, make to be oozed by the gap of self-lubricating linear bearing in atmospheric environment
The air for entering can only enter in narrow confined space, without entering into vacuum cavity, so as to play a part of sealing；Institute
Can ensure that wire duct 1 moves up and down with the structure in the present invention, while good sealing function can be also played, so as to realize fortune
The effect of dynamic sealing, to ensure that magnetic flux toroidal magnet high is slided up and down in vacuum environment, so as to normally work.
Claims (5)
1. a kind of motion seal structure in magnetic flux toroidal magnet high vacuum environment high, it is characterised in that：Include vacuum
Cavity, the magnetic flux toroidal magnet high inside vacuum cavity, pass through between the vacuum cavity and magnetic flux toroidal magnet high
Wire duct is connected, and bellows is set with the wire duct, and guiding is set with the wire duct below the bellows
Axle sleeve, is installed by rotating between self-lubricating linear bearing between the guideway and wire duct, and guideway is upper
Inside vacuum cavity, lower end is outside vacuum cavity at end.
2. the motion seal structure in magnetic flux toroidal magnet high vacuum environment high according to claim 1, its feature
It is：Described magnetic flux toroidal magnet lower end high is welded with high vacuum knife-edge flange, and the bellows upper and lower end face is all welded with
Vacuum edge of a knife flange, the wire duct outer wall is welded with upper and lower two high vacuum knife-edge flanges, the magnetic flux toroidal magnet high
It is connected with the vacuum edge of a knife flange of conduit upper end by the vacuum edge of a knife flange of lower end, the vacuum cutter of the wire duct lower end
Mouth flange is then connected with the vacuum edge of a knife flange of bellows upper end, vacuum edge of a knife flange and the guideway upper end of bellows lower end
Flange connection.
3. the motion seal structure in magnetic flux toroidal magnet high vacuum environment high according to claim 2, its feature
It is：Described bellows, guideway, the shielding of vacuum vacuum edge of a knife flange composition, can intercept air and enter vacuum chamber
Internal portion, keeps the vacuum environment inside vacuum cavity.
4. the motion seal structure in magnetic flux toroidal magnet high vacuum environment high according to claim 1, its feature
It is：Described self-lubricating linear bearing is bolted on guideway, and self-lubricating linear bearing inner ring sleeve is in wire
On pipeline.
5. according to claim 1 or 4 for the motion seal structure in magnetic flux toroidal magnet high vacuum environment high, it is special
Levy and be：Two groups of self-lubricating linear sliding bearings are installed inside described guideway, have between two groups of bearings it is certain between
Every self-lubricating linear sliding bearing outside is fixed on guideway, and inner ring surface is in close contact with wire duct outer wall, composition is slided
Dynamic kinematic pair, can constrain wire duct and only be slided up and down in bearing inner ring, so as to play guide effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126900.4A CN106898455B (en) | 2017-03-06 | 2017-03-06 | A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126900.4A CN106898455B (en) | 2017-03-06 | 2017-03-06 | A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106898455A true CN106898455A (en) | 2017-06-27 |
| CN106898455B CN106898455B (en) | 2018-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710126900.4A Active CN106898455B (en) | 2017-03-06 | 2017-03-06 | A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment |
Country Status (1)
| Country | Link |
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| CN (1) | CN106898455B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108986611A (en) * | 2018-08-17 | 2018-12-11 | 中国科学技术大学 | A kind of space magnetic field joins phenomena simulation device again |
| CN109785718A (en) * | 2019-01-24 | 2019-05-21 | 哈尔滨工业大学 | A kind of ground simulator and method for simulating earth magnetic tail three-dimensional magnetic reconnection |
| CN115988725A (en) * | 2023-02-17 | 2023-04-18 | 哈尔滨工业大学 | Magnet position adjusting mechanism for high-vacuum plasma environment |
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| CN102152318A (en) * | 2011-05-04 | 2011-08-17 | 中国科学院等离子体物理研究所 | Robot drive mechanism used in high temperature vacuum environment |
| CN105003654A (en) * | 2015-05-20 | 2015-10-28 | 北京航空航天大学 | High-speed rotation drill rod sealing structure adopting magnetic fluid and bellows |
| CN106272386A (en) * | 2016-09-22 | 2017-01-04 | 中国科学院合肥物质科学研究院 | A kind of hinge type double freedom modular mechanical arm for EAST device |
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2017
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152318A (en) * | 2011-05-04 | 2011-08-17 | 中国科学院等离子体物理研究所 | Robot drive mechanism used in high temperature vacuum environment |
| CN105003654A (en) * | 2015-05-20 | 2015-10-28 | 北京航空航天大学 | High-speed rotation drill rod sealing structure adopting magnetic fluid and bellows |
| CN106272386A (en) * | 2016-09-22 | 2017-01-04 | 中国科学院合肥物质科学研究院 | A kind of hinge type double freedom modular mechanical arm for EAST device |
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| 史善爽等: "EAST真空隔断结构设计与热力耦合分析", 《核聚变与等离子体物理》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108986611A (en) * | 2018-08-17 | 2018-12-11 | 中国科学技术大学 | A kind of space magnetic field joins phenomena simulation device again |
| CN109785718A (en) * | 2019-01-24 | 2019-05-21 | 哈尔滨工业大学 | A kind of ground simulator and method for simulating earth magnetic tail three-dimensional magnetic reconnection |
| CN109785718B (en) * | 2019-01-24 | 2021-01-12 | 哈尔滨工业大学 | Ground simulation device and method for simulating three-dimensional magnetic reconnection of earth magnetic tail |
| CN115988725A (en) * | 2023-02-17 | 2023-04-18 | 哈尔滨工业大学 | Magnet position adjusting mechanism for high-vacuum plasma environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106898455B (en) | 2018-08-14 |
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