CN106898455B - A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment - Google Patents
A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment Download PDFInfo
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- CN106898455B CN106898455B CN201710126900.4A CN201710126900A CN106898455B CN 106898455 B CN106898455 B CN 106898455B CN 201710126900 A CN201710126900 A CN 201710126900A CN 106898455 B CN106898455 B CN 106898455B
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- Prior art keywords
- magnetic flux
- toroidal magnet
- high vacuum
- high magnetic
- guideway
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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 structures in high magnetic flux toroidal magnet high vacuum environment, it is characterised in that：Include vacuum cavity, the high magnetic flux toroidal magnet inside vacuum cavity, it is connected by wire duct between the vacuum cavity and high magnetic flux toroidal magnet, it is set with bellows on the wire duct, it is set with guideway on wire duct below the bellows, by being rotatablely installed 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 high magnetic flux toroidal magnet high vacuum environment proposed by the present invention can ensure the vacuum environment inside vacuum cavity while conducting high magnetic flux toroidal magnet linear slide, it is ensured that high magnetic flux toroidal magnet 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 height
Motion seal structure in magnetic flux toroidal magnet high vacuum environment.
Background technology：
The plasma that high magnetic flux toroidal magnet is primarily used to study high magnetic flux toroidal magnet generation is produced with earth magnetic field
Magnetosheath plasma and the part of earth magnetosphere interaction are existing under the conditions of raw Plasma Interaction simulation different magnetic field
As especially sunny slope Magnetic reconnection process.And high magnetic flux toroidal magnet needs could work under vacuum conditions, so
Designing a kind of motion seal structure that can be used in high magnetic flux toroidal magnet high vacuum environment is very important.
Invention content：
The object of the invention is exactly to be provided a kind of for high magnetic flux toroidal magnet high vacuum to make up the defect of prior art
Motion seal structure in environment, to meet the vacuum environment needed for high magnetic flux toroidal magnet work.
The present invention is achieved by the following technical solutions：
A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment, it is characterised in that：Include true
Cavity body, the high magnetic flux toroidal magnet inside vacuum cavity lead between the vacuum cavity and high magnetic flux toroidal magnet
Wire duct connection is crossed, bellows is set on the wire duct, is set with and leads on the wire duct below the bellows
To axle sleeve, by being rotatablely installed between self-lubricating linear bearing between the guideway and wire duct, and guideway
Upper end is inside vacuum cavity, and lower end is outside vacuum cavity.
The high magnetic flux toroidal magnet lower end is welded with high vacuum knife-edge flange, and the bellows upper and lower end face is all welded
There are vacuum edge of a knife flange, the wire duct outer wall to be welded with two high vacuum knife-edge flanges up and down, the high magnetic flux annular magnetic
Body passes through the vacuum edge of a knife flange of lower end and the vacuum edge of a knife flanged joint of conduit upper end, the vacuum of the wire duct lower end
Edge of a knife flange then with the vacuum edge of a knife flanged joint of bellows upper end, the vacuum edge of a knife flange of bellows lower end on guideway
The flanged joint at end.
The shielding of the bellows, guideway, vacuum vacuum edge of a knife flange composition, can obstruct air and enter vacuum
Inside cavity keeps the vacuum environment inside vacuum cavity；
The self-lubricating linear bearing is bolted on guideway, and self-lubricating linear bearing inner ring sleeve is being led
On spool road.
Two groups of self-lubricating linear sliding bearings are installed inside the 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 using the self-lubricating property of bearing, avoids fluid lubricant from being polluted caused by vacuum cavity, can constrain
Wire duct only slides up and down in bearing inner ring, to play guiding role.
It is an advantage of the invention that：
A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment proposed by the present invention can pass
Ensure the vacuum environment inside vacuum cavity while leading high magnetic flux toroidal magnet linear slide, it is ensured that high magnetic flux toroidal magnet is just
Normal work.
Description of the drawings：
Fig. 1 is overall structure stereoscopic schematic diagram of the present invention.
Fig. 2 is the partial enlarged view of motion seal in structure of the invention.
Fig. 3 is the sectional view of motion seal component in structure of the invention.
Fig. 4 is the mounting structure schematic diagram when present invention uses.
Specific implementation mode：
Referring to attached drawing.
As shown in Figure 1, 2, 3.A kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment, it is main to wrap
Include extraneous vacuum cavity 4, high magnetic flux toroidal magnet 6, wire duct 1, bellows 2, guideway 3 and self-lubricating straight line
Sliding bearing 5；High magnetic flux toroidal magnet separates on the whole in vacuum cavity internal work with the external world；High magnetic flux toroidal magnet 6
With 1 upper end of wire duct by high vacuum knife-edge flanged joint, ensure the unfailing performance of sealing；It is same as 1 outer wall of wire duct
It is welded with high vacuum knife-edge flange, the high vacuum knife-edge flanged joint with 2 upper end of bellows；2 lower end of bellows passes through Gao Zhen
The high vacuum knife-edge flanged joint of empty edge of a knife flange and 3 top of guideway；3 lower ending opening of guideway is outside vacuum cavity
Air in, outer wall is welded to connect with vacuum cavity, inside connect with self-lubricating linear sliding bearing 5；Linear slide bearing 5
Inner ring is in close contact with conduit 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 and can only be slided up and down in the inner ring of two groups of linear slide bearings, to rise
To guiding role；Due to the self-lubricating property of self-lubricating linear sliding bearing, good lubricant effect can be played, is avoided often
Advise pollution of the fluid lubricant to vacuum chamber.By with bellows 2, high vacuum knife-edge flange, guideway 3 and wire duct
The 1 closed narrow space formed, can completely cut off vacuum and air, make to ooze by the gap of self-lubricating linear bearing in atmospheric environment
The air entered can only enter in narrow confined space, without entering in vacuum cavity, to play the role of sealing；Institute
It can ensure that wire duct 1 moves up and down with the structure in the present invention, while can also play good sealing function, to realize fortune
The effect of dynamic sealing, to ensure that high magnetic flux toroidal magnet slides up and down in vacuum environment, to normally work.
Claims (3)
1. a kind of motion seal structure in high magnetic flux toroidal magnet high vacuum environment, it is characterised in that：It include vacuum
Cavity, the high magnetic flux toroidal magnet inside vacuum cavity, pass through between the vacuum cavity and high magnetic flux toroidal magnet
Wire duct connects, and is set with bellows on the wire duct, guiding is set on the wire duct below the bellows
Axle sleeve, by being rotatablely installed between self-lubricating linear bearing between the guideway and wire duct, and guideway is upper
End is inside vacuum cavity, and lower end is outside vacuum cavity；
The high magnetic flux toroidal magnet lower end is welded with high vacuum knife-edge flange, and the bellows upper and lower end face is respectively welded
High vacuum knife-edge flange, the wire duct outer wall are respectively welded high vacuum knife-edge flange, the high magnetic flux annular magnetic up and down
Body passes through the high vacuum knife-edge flange of lower end and the high vacuum knife-edge flanged joint of wire duct upper end, the wire duct lower end
High vacuum knife-edge flange then with the high vacuum knife-edge flanged joint of bellows upper end, the high vacuum knife-edge flange of bellows lower end
With the high vacuum knife-edge flanged joint of guideway upper end；
The shielding of the bellows, guideway, high vacuum knife-edge flange composition, barrier air enter inside vacuum cavity,
Keep the vacuum environment inside vacuum cavity.
2. the motion seal structure according to claim 1 in high magnetic flux toroidal magnet high vacuum environment, feature
It is：The self-lubricating linear bearing is bolted on guideway, and self-lubricating linear bearing inner ring sleeve is in conducting wire
On pipeline.
3. the motion seal structure according to claim 1 or 2 in high magnetic flux toroidal magnet high vacuum environment, special
Sign is：Two groups of self-lubricating linear bearings are installed inside the guideway, have one between two groups of self-lubricating linear bearings
Fixed interval, self-lubricating linear bearing outside are fixed on guideway, and inner ring surface is in close contact with wire duct outer wall, forms
Sliding motion pair can constrain wire duct and only be slided up and down in bearing inner ring, to play guiding role.
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 CN106898455A (en) | 2017-06-27 |
| CN106898455B true 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)
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| CN (1) | CN106898455B (en) |
Families Citing this family (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 |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152318B (en) * | 2011-05-04 | 2012-07-11 | 中国科学院等离子体物理研究所 | Robot drive mechanism used in high temperature vacuum environment |
| CN105003654B (en) * | 2015-05-20 | 2017-08-11 | 北京航空航天大学 | A kind of high-speed rotation drilling rod sealing structure of use 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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| Publication number | Publication date |
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| CN106898455A (en) | 2017-06-27 |
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