CN105782458A - Dynamic seal device for star sensor calibration device in compound environment - Google Patents
Dynamic seal device for star sensor calibration device in compound environment Download PDFInfo
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- CN105782458A CN105782458A CN201410635212.7A CN201410635212A CN105782458A CN 105782458 A CN105782458 A CN 105782458A CN 201410635212 A CN201410635212 A CN 201410635212A CN 105782458 A CN105782458 A CN 105782458A
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Abstract
The invention belongs to the technical field of sealing, particularly relates to a dynamic seal device for a star sensor calibration device in a compound environment, and provides the dynamic seal device for the star sensor calibration device in the compound environment. The dynamic seal device comprises a high low temperature vacuum device (5), a magnetofluid sealing device (6), a magnetofluid coupling shaft (7) and a seal ring, wherein the high low temperature vacuum device (5) is used for providing a comprehensive environment for testing and calibration of a star sensor; the magnetofluid coupling shaft (7) achieves movable connection between the magnetofluid sealing device (6) and a rotary table position shaft (8); and the magnetofluid sealing device (6) achieves the sealed connection between the high low temperature vacuum device (5) and a rotary table. According to the dynamic seal device, the dynamic seal of the position shaft and the high low temperature vacuum device is achieved through the magnetofluid sealing device of a shaftless system, the over-positioning problem of a magnetofluid shafting and a rotary table position shafting is effectively solved, and a good dynamic seal effect is achieved while high location accuracy is guaranteed.
Description
Technical field
The invention belongs to technical field of sealing technology, be specifically related to a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment.
Background technology
Calibration for star sensor generally adopts fixed star simulator to calibrate, and namely sends parallel rays by star simulator, simulates fixed star light in space, and high-precision dual-axis turntable drives the probe of star sensor to rotate together.If needing to provide the combinational environment of star sensor calibration, it is necessary to consider to be placed in combinational environment by star sensor, high-precision dual-axis turntable realize rotational motion, therefore certainly exist the connection sealing problem between high/low temperature vacuum equipment and high precision turntable.
At present, the relevant report of high/low temperature vacuum equipment and turntable stage body coupling part sealing device not yet it is related to.
Summary of the invention
It is an object of the invention to provide a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment.
The present invention is achieved in that
A kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, including high/low temperature vacuum equipment, device for sealing magnetic fluid, magnetic fluid Coupling Shaft and sealing ring；Wherein, high/low temperature vacuum equipment is for providing the integrated environment of star sensor detection calibration, and turntable is arranged on high/low temperature vacuum equipment bottom, and workbench is arranged on inside high/low temperature vacuum equipment, and star sensor is arranged on the upper surface of workbench；Coupling Shaft is arranged on inside high/low temperature vacuum equipment, top is stretched into inside workbench, and bottom is connected with marble heat insulation loop top；Magnetic fluid Coupling Shaft is arranged in device for sealing magnetic fluid, and top is connected with bottom marble heat insulation loop, and bottom is connected with turntable azimuth axis, it is achieved the motion between device for sealing magnetic fluid with turntable azimuth axis is connected；Device for sealing magnetic fluid is arranged on inside high/low temperature vacuum equipment, outside magnetic fluid Coupling Shaft, it is achieved being tightly connected between high/low temperature vacuum equipment and turntable；Sealing ring is for realizing the sealing of device for sealing magnetic fluid and the sealing of high/low temperature vacuum equipment, device for sealing magnetic fluid and magnetic fluid Coupling Shaft and the sealing of marble heat insulation loop and magnetic fluid Coupling Shaft.
High/low temperature vacuum equipment as above is horizontal metal rounding tubular, has logical bottom it.
Workbench as above is metal rounding plate-like, has the through hole installing hole as Coupling Shaft in uniform 8 on its table top.
Coupling Shaft as above is metal shaft-like, and its top is stretched in the Coupling Shaft installing hole of workbench.
Magnetic fluid Coupling Shaft as above is the cylindrical shape with disc-shaped base, has uniform 6 through hole as the installing hole with device for sealing magnetic fluid rotating part, it is achieved the motion between device for sealing magnetic fluid with turntable azimuth axis is connected bottom it.
Device for sealing magnetic fluid as above is metal rounding tubulose.
Sealing ring as above includes magnetic fluid seal stator circle and includes magnetic fluid seal stator circle, magnetic fluid Coupling Shaft sealing ring and magnetic fluid rotor seal ring；Wherein, magnetic fluid seal stator circle is arranged on outside device for sealing magnetic fluid, inside high/low temperature vacuum equipment, for realizing device for sealing magnetic fluid and the sealing of high/low temperature vacuum equipment；Magnetic fluid Coupling Shaft sealing ring is arranged on inside device for sealing magnetic fluid, outside magnetic fluid Coupling Shaft, for realizing device for sealing magnetic fluid and the sealing of magnetic fluid Coupling Shaft；Magnetic fluid rotor seal ring is arranged between magnetic fluid Coupling Shaft and marble heat insulation loop, for realizing marble heat insulation loop and the sealing of magnetic fluid Coupling Shaft.
The axiality of magnetic fluid Coupling Shaft as above and device for sealing magnetic fluid reaches 0.02mm.
The perpendicularity of the flange installed surface that the axiality of the axis of magnetic fluid Coupling Shaft as above and high/low temperature vacuum equipment flange shaft reaches 0.02mm, the axis of magnetic fluid Coupling Shaft and high/low temperature vacuum equipment reaches 0.02mm.
The axiality of high/low temperature vacuum equipment flange shaft as above and turntable azimuth axis reaches 0.02mm.
The beneficial effects of the present invention is:
The present invention realizes the dynamic seal (packing) of azimuth axis and high/low temperature vacuum equipment by the device for sealing magnetic fluid of shaftless system, effectively solve the mistake orientation problem of Magnetofluid shaft system and turntable azimuth axle simultaneously, while ensureing calibrating installation high position precision, reach good dynamic sealing effect.Shown under final the key technical indexes testing result such as table.
Accompanying drawing explanation
Fig. 1 is a kind of for the structural representation of the dynamic sealing device of star sensor calibrating installation under combinational environment of the present invention；
In figure, 1. star sensor, 2. workbench, 3. Coupling Shaft, 4. marble heat insulation loop, 5. high/low temperature vacuum equipment, 6. device for sealing magnetic fluid, 7. magnetic fluid Coupling Shaft, 8. turntable azimuth axis, 9. magnetic fluid seal stator circle, 10. magnetic fluid Coupling Shaft sealing ring, 11. magnetic fluid rotor seal rings.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, a kind of of the present invention is described for the dynamic sealing device of star sensor calibrating installation under combinational environment:
As it is shown in figure 1, a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, including high/low temperature vacuum equipment 5, device for sealing magnetic fluid 6, magnetic fluid Coupling Shaft 7 and sealing ring.Wherein, high/low temperature vacuum equipment 5 is horizontal metal rounding tubular, has through hole bottom it, and it is for providing the integrated environment of star sensor detection calibration.Turntable is arranged on high/low temperature vacuum equipment 5 bottom.Workbench 2 is metal rounding plate-like, has the through hole installing hole as Coupling Shaft 3 in uniform 8 on its table top, and it is internal that it is arranged on high/low temperature vacuum equipment 5, and star sensor 1 is arranged on the upper surface of workbench 2.Coupling Shaft 3 is metal shaft-like, and it is arranged in the Coupling Shaft installing hole that high/low temperature vacuum equipment 5 is internal, workbench 2 is stretched on top, and bottom is connected with marble heat insulation loop 4 top.Magnetic fluid Coupling Shaft 7 is the cylindrical shape with disc-shaped base, it is arranged in device for sealing magnetic fluid 6, top is connected with bottom marble heat insulation loop 4, bottom is connected with turntable azimuth axis 8, uniform 6 through hole is had as the installing hole with device for sealing magnetic fluid 6 rotating part, it is achieved the motion between device for sealing magnetic fluid 5 with turntable azimuth axis is connected bottom it.Device for sealing magnetic fluid 6 is metal rounding tubulose, and it is arranged on, and high/low temperature vacuum equipment 5 is internal, magnetic fluid Coupling Shaft 7 is outside, it is achieved being tightly connected between high/low temperature vacuum equipment 5 and turntable, it is achieved the movable sealing of test environment.Sealing ring includes magnetic fluid seal stator circle 9, magnetic fluid Coupling Shaft sealing ring 10 and magnetic fluid rotor seal ring 11.Wherein, magnetic fluid seal stator circle 9 is arranged on outside device for sealing magnetic fluid 6, inside high/low temperature vacuum equipment 5, for realizing device for sealing magnetic fluid 6 and the sealing of high/low temperature vacuum equipment 5, magnetic fluid Coupling Shaft sealing ring 10 is arranged on inside device for sealing magnetic fluid 6, outside magnetic fluid Coupling Shaft 7, for realizing device for sealing magnetic fluid 6 and the sealing of magnetic fluid Coupling Shaft 7, magnetic fluid rotor seal ring 11 is arranged between magnetic fluid Coupling Shaft 7 and marble heat insulation loop 4, for realizing marble heat insulation loop 4 and the sealing of magnetic fluid Coupling Shaft 7.
Device for sealing magnetic fluid 6 adopts quill shaft form, gets rid of the conventional axle system form being made up of bearing, adopt the version of bearing-free on primary structure, is namely full of magnetic fluid medium between stator and the rotor of device for sealing magnetic fluid.In order to meet the alignment requirements of star sensor, turntable needs to provide high-precision azimuth rotation axle system, and the azimuth rotation axle system of turntable is made up of high-precision bearing.If device for sealing magnetic fluid adopts conventional bearing arrangement form, location will necessarily be produced with turntable is formed high accuracy axle system, thus turntable 0.5 cannot be ensured " high position precision.
During installation, the axiality of magnetic fluid Coupling Shaft 7 and device for sealing magnetic fluid 6 reaches 0.02mm, adopts the soket head cap screw of 6 M5 to be arranged in magnetic fluid Coupling Shaft 7 by device for sealing magnetic fluid 6, and by twoAlignment pin and magnetic fluid Coupling Shaft 7 position, it is ensured that in carrying situation, both keep geo-stationary, it is to avoid relative position variation occurs, affects the precision of axle system.Magnetic fluid Coupling Shaft sealing ring 10 is arranged between magnetic fluid Coupling Shaft 7 and device for sealing magnetic fluid 6 and realizes sealing.After both are fastenedly connected, parts are it can be used as to be installed on high/low temperature vacuum equipment 5 by the outer-hexagonal bolts of 8 M10, and by twoAlignment pin device for sealing magnetic fluid 6 and high/low temperature vacuum equipment 5 are positioned, it is to avoid in carrying situation, there is relative position change, affect the positioning precision of turntable shaft system.In installation process, the perpendicularity of the flange installed surface that the axiality of the axis of magnetic fluid Coupling Shaft 7 and high/low temperature vacuum equipment 5 flange shaft reaches 0.02mm, the axis of magnetic fluid Coupling Shaft 7 and high/low temperature vacuum equipment 5 reaches 0.02mm.Magnetic fluid seal stator circle 9 is arranged between device for sealing magnetic fluid 6 and high/low temperature vacuum equipment 5 and realizes sealing.
Above-mentioned being connected is arranged on turntable azimuth axis 8 by the soket head cap screw of 8 M8 partly as parts, and by twoAlignment pin magnetic fluid Coupling Shaft 7 and turntable azimuth axis 8 are positioned, it is to avoid in carrying situation, there is relative position change, affect the positioning precision of turntable shaft system.The axiality of high/low temperature vacuum equipment 5 flange shaft and turntable azimuth axis 8 reaches 0.02mm.
After the installation is complete, marble heat insulation loop 4 is arranged on the mover of device for sealing magnetic fluid by screw, is sealed by magnetic fluid rotor seal ring 11 between the two.Coupling Shaft 3 is arranged in marble heat insulation loop 4 by screw, workbench 2 is arranged on Coupling Shaft 3, finally product star sensor 1 to be measured is installed on the table.
During work: star sensor calibrating installation azimuth axis 8 rotates, the rotor driving magnetic fluid Coupling Shaft 7 and device for sealing magnetic fluid 6 rotates, and then drive marble heat insulation loop 4, Coupling Shaft 3, workbench 2 and star sensor 1 to rotate, and the stationary part of high/low temperature vacuum equipment 5 and device for sealing magnetic fluid 6 will keep geo-stationary, realize the effective sealing in motor process of the dynamic and static part by device for sealing magnetic fluid 6, realize the high position precision of calibrating installation rotation axis system simultaneously.
The present invention realizes the dynamic seal (packing) of azimuth axis and high/low temperature vacuum equipment by the device for sealing magnetic fluid of shaftless system, effectively solve the mistake orientation problem of Magnetofluid shaft system and turntable azimuth axle simultaneously, while ensureing calibrating installation high position precision, reach good dynamic sealing effect.Shown under final the key technical indexes testing result such as table.
| Project | Measured result |
| Positional accuracy measurement | ±0.5″ |
| Vacuum | 1×10-3Pa |
| Temperature range | -60 DEG C～+80 DEG C |
Claims (10)
1. for a dynamic sealing device for star sensor calibrating installation under combinational environment, including high/low temperature vacuum equipment (5), device for sealing magnetic fluid (6), magnetic fluid Coupling Shaft (7) and sealing ring；Wherein, high/low temperature vacuum equipment (5) is for providing the integrated environment of star sensor detection calibration, turntable is arranged on high/low temperature vacuum equipment (5) bottom, it is internal that workbench (2) is arranged on high/low temperature vacuum equipment (5), and star sensor (1) is arranged on the upper surface of workbench (2)；It is internal that Coupling Shaft (3) is arranged on high/low temperature vacuum equipment (5) inside, workbench (2) is stretched on top, and bottom is connected with marble heat insulation loop (4) top；Magnetic fluid Coupling Shaft (7) is arranged in device for sealing magnetic fluid (6), top is connected with marble heat insulation loop (4) bottom, bottom is connected with turntable azimuth axis (8), it is achieved the motion between device for sealing magnetic fluid (5) with turntable azimuth axis (8) is connected；Device for sealing magnetic fluid (6) is arranged on high/low temperature vacuum equipment (5) inside, magnetic fluid Coupling Shaft (7) outside, it is achieved being tightly connected between high/low temperature vacuum equipment (5) and turntable；Sealing ring is used for the sealing of sealing and marble heat insulation loop (4) and the magnetic fluid Coupling Shaft (7) realizing device for sealing magnetic fluid (6) and the sealing of high/low temperature vacuum equipment (5), device for sealing magnetic fluid (6) and magnetic fluid Coupling Shaft (7).
2. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterised in that: described high/low temperature vacuum equipment (5) is horizontal metal rounding tubular, has logical bottom it.
3. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterized in that: described workbench (2) is metal rounding plate-like, its table top has uniform 8 through hole installing hole as Coupling Shaft (3).
4. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterized in that: described Coupling Shaft (3) is metal shaft-like, and its top is stretched in the Coupling Shaft installing hole of workbench (2).
5. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterized in that: described magnetic fluid Coupling Shaft (7) is the cylindrical shape with disc-shaped base, uniform 6 through hole is had as the installing hole with device for sealing magnetic fluid (6) rotating part, it is achieved the motion between device for sealing magnetic fluid (5) with turntable azimuth axis (8) is connected bottom it.
6. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterised in that: described device for sealing magnetic fluid (6) is metal rounding tubulose.
7. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterised in that: described sealing ring includes magnetic fluid seal stator circle (9) and includes magnetic fluid seal stator circle (9), magnetic fluid Coupling Shaft sealing ring (10) and magnetic fluid rotor seal ring (11)；Wherein, magnetic fluid seal stator circle (9) is arranged on device for sealing magnetic fluid (6) outside, high/low temperature vacuum equipment (5) inner side, is used for the sealing realizing device for sealing magnetic fluid (6) and high/low temperature vacuum equipment (5)；Magnetic fluid Coupling Shaft sealing ring (10) is arranged on device for sealing magnetic fluid (6) inner side, magnetic fluid Coupling Shaft (7) outside, is used for the sealing realizing device for sealing magnetic fluid (6) and magnetic fluid Coupling Shaft (7)；Magnetic fluid rotor seal ring (11) is arranged between magnetic fluid Coupling Shaft (7) and marble heat insulation loop (4), is used for the sealing realizing marble heat insulation loop (4) and magnetic fluid Coupling Shaft (7).
8. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterised in that: the axiality of described magnetic fluid Coupling Shaft (7) and device for sealing magnetic fluid (6) reaches 0.02mm.
9. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterized in that: the perpendicularity of the flange installed surface that the axis of described magnetic fluid Coupling Shaft (7) and the axiality of high/low temperature vacuum equipment (5) flange shaft reach 0.02mm, the axis of magnetic fluid Coupling Shaft (7) and high/low temperature vacuum equipment (5) reaches 0.02mm.
10. according to claim 1 a kind of for the dynamic sealing device of star sensor calibrating installation under combinational environment, it is characterised in that: the axiality of described high/low temperature vacuum equipment (5) flange shaft and turntable azimuth axis (8) reaches 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635212.7A CN105782458B (en) | 2014-12-26 | 2014-12-26 | Dynamic sealing device for star sensor calibrating installation under combinational environment |
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| CN201410635212.7A CN105782458B (en) | 2014-12-26 | 2014-12-26 | Dynamic sealing device for star sensor calibrating installation under combinational environment |
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| CN105782458A true CN105782458A (en) | 2016-07-20 |
| CN105782458B CN105782458B (en) | 2017-12-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471466A (en) * | 2018-11-22 | 2019-03-15 | 北京航天计量测试技术研究所 | High-precision indexing mechanism with temperature control function |
| CN109798921A (en) * | 2019-02-22 | 2019-05-24 | 中国科学院光电技术研究所 | Calibration method in a kind of star sensor elements of interior orientation room |
| CN110185803A (en) * | 2019-05-21 | 2019-08-30 | 浙江工商大学 | Magnet fluid sealing axis with heat-insulated axis |
| CN115086534A (en) * | 2022-07-20 | 2022-09-20 | 中国科学院长春光学精密机械与物理研究所 | Composite dynamic sealing spherical nitrogen-filled photoelectric turntable suitable for medium-and-large-caliber optical equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2391058Y (en) * | 1999-06-04 | 2000-08-09 | 北京航空航天大学 | Combined sealing device |
| CN1949002A (en) * | 2005-10-12 | 2007-04-18 | 北京航空航天大学 | Internal and external element correcting method of star sensor |
| CN101013065A (en) * | 2006-03-21 | 2007-08-08 | 北京航空航天大学 | Pixel frequency based star sensor high accuracy calibration method |
| CN101358653A (en) * | 2007-08-03 | 2009-02-04 | 中芯国际集成电路制造(上海)有限公司 | Magnetic fluid heat insulation device and heat insulation system |
| CN101886978A (en) * | 2010-07-07 | 2010-11-17 | 四川大学 | Vacuum high/low temperature environmental simulation electromechanical transmission mechanism comprehensive performance experimental system |
| CN102735264A (en) * | 2012-06-18 | 2012-10-17 | 北京控制工程研究所 | Star sensor fault simulation system |
| CN103602956A (en) * | 2013-11-08 | 2014-02-26 | 南方科技大学 | Vacuum deposition system and rotary feed-in device thereof |
| CN203625463U (en) * | 2013-11-08 | 2014-06-04 | 南方科技大学 | Vacuum deposition system and rotary feed-in device thereof |
| CN203732035U (en) * | 2014-02-20 | 2014-07-23 | 北京航天计量测试技术研究所 | Rotary worktable |
-
2014
- 2014-12-26 CN CN201410635212.7A patent/CN105782458B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2391058Y (en) * | 1999-06-04 | 2000-08-09 | 北京航空航天大学 | Combined sealing device |
| CN1949002A (en) * | 2005-10-12 | 2007-04-18 | 北京航空航天大学 | Internal and external element correcting method of star sensor |
| CN101013065A (en) * | 2006-03-21 | 2007-08-08 | 北京航空航天大学 | Pixel frequency based star sensor high accuracy calibration method |
| CN101358653A (en) * | 2007-08-03 | 2009-02-04 | 中芯国际集成电路制造(上海)有限公司 | Magnetic fluid heat insulation device and heat insulation system |
| CN101886978A (en) * | 2010-07-07 | 2010-11-17 | 四川大学 | Vacuum high/low temperature environmental simulation electromechanical transmission mechanism comprehensive performance experimental system |
| CN102735264A (en) * | 2012-06-18 | 2012-10-17 | 北京控制工程研究所 | Star sensor fault simulation system |
| CN103602956A (en) * | 2013-11-08 | 2014-02-26 | 南方科技大学 | Vacuum deposition system and rotary feed-in device thereof |
| CN203625463U (en) * | 2013-11-08 | 2014-06-04 | 南方科技大学 | Vacuum deposition system and rotary feed-in device thereof |
| CN203732035U (en) * | 2014-02-20 | 2014-07-23 | 北京航天计量测试技术研究所 | Rotary worktable |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471466A (en) * | 2018-11-22 | 2019-03-15 | 北京航天计量测试技术研究所 | High-precision indexing mechanism with temperature control function |
| CN109471466B (en) * | 2018-11-22 | 2021-01-05 | 北京航天计量测试技术研究所 | High-precision indexing mechanism with temperature control function |
| CN109798921A (en) * | 2019-02-22 | 2019-05-24 | 中国科学院光电技术研究所 | Calibration method in a kind of star sensor elements of interior orientation room |
| CN109798921B (en) * | 2019-02-22 | 2022-07-19 | 中国科学院光电技术研究所 | Indoor calibration method for internal orientation elements of star sensor |
| CN110185803A (en) * | 2019-05-21 | 2019-08-30 | 浙江工商大学 | Magnet fluid sealing axis with heat-insulated axis |
| CN115086534A (en) * | 2022-07-20 | 2022-09-20 | 中国科学院长春光学精密机械与物理研究所 | Composite dynamic sealing spherical nitrogen-filled photoelectric turntable suitable for medium-and-large-caliber optical equipment |
| CN115086534B (en) * | 2022-07-20 | 2022-11-08 | 中国科学院长春光学精密机械与物理研究所 | Composite dynamic sealing spherical nitrogen-filled photoelectric turntable suitable for medium-and-large-caliber optical equipment |
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