CN102563296B - Slidable support under low-temperature, vacuum and strong electromagnetic environments - Google Patents
Slidable support under low-temperature, vacuum and strong electromagnetic environments Download PDFInfo
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- CN102563296B CN102563296B CN201110456283.7A CN201110456283A CN102563296B CN 102563296 B CN102563296 B CN 102563296B CN 201110456283 A CN201110456283 A CN 201110456283A CN 102563296 B CN102563296 B CN 102563296B
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- slide plate
- cylinder supporting
- supporting drum
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- support
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Abstract
The invention provides a slidable support under low-temperature, vacuum and strong electromagnetic environments. The support mainly takes a slide plate and a cylindrical supporting barrel as supporting structure parts; one group of anti-loosening bolts with a composite material sleeve are connected with the slide plate and the cylindrical supporting barrel; the surface of a friction pair is made of a low-friction-coefficient material with a self-lubricating property; flanges at upper and lower ends of the cylindrical supporting barrel are used for realizing the connection between the structure parts of the support to realize the connection between the support and a supported part, so that the whole support can freely slide along the direction of a slide rail. According to the support provided by the invention, by utilizing the low-friction-coefficient material which has the characteristics that the strength is improved and the heat conduction capability is reduced at a low temperature as well as the low-friction-coefficient material has the self-lubricating property at a low-temperature and vacuum state, the slidable support can be reliably operated under the low-temperature, vacuum and strong electromagnetic conditions.
Description
Technical field
The present invention relates to superconduct physical unit design field, be specifically related to a kind ofly can bear 4.2-300K running temperature, there is lower heat by conduction load, lower permeability and gas efficiency, and can bear compared with the support of high pulling torque, vertical force, lateral force and thermal stress.
Background technique
Development and the following global problems such as energy crisis that face of reply for the technology of advancing science; many countries are all used for carrying out the correlative study of high-tech sector, such as the hadron colliding beam accelerator in European particle physics laboratory and large-scale superconducting tokamak device etc. at the large-scale superconduct physical unit of positive construction in the world in recent years.Feeder system is the core component of these superconduct physical units, it provides field current and cooling medium for superconducting magnet system, also be the connecting passage of device built in diagnostics device and extraneous relevant device, therefore, feeder system has vital effect in superconduct physical unit.In order to compensate the displacement producing due to temperature variation in feeder line working procedure, and bear the huge moment of torsion that produced by electromagnetic force and from the active force of other parts, changeover portion in feeder system has designed the support that along continuous straight runs can slide, it can meet low temperature, vacuum, maximal work environment under strong electromagnetic, can also meet lower heat by conduction load simultaneously, this has proposed a difficult problem for the design of supporting structure, at home in Related Research Domain, being difficult to find out can be for low temperature, vacuum, slidably supported design scheme under strong electromagnetic environment, the present invention provides a solution with regard to this difficult problem.
Summary of the invention
The invention provides the slidably support under a kind of low temperature, vacuum, strong electromagnetic environment.The main body of this support is slide plate and cylinder supporting drum, and its working method is the movement along horizontal slip track.The main body of described support adopts low gas efficiency, low thermal conductivity, low magnetic permeability and has at low temperatures high-intensity metallic material or high-intensity composite material, at surface of friction pair, adopt the low coefficient of friction material with self-lubricating property, solved its reliable operation problem under low temperature, vacuum, strong electromagnetic environment.
Technological scheme of the present invention is as follows:
A kind of low temperature, vacuum, slidably support under strong electromagnetic environment, comprise slide rail and the slide plate matching, cylinder supporting drum, cold screen, it is characterized in that: the middle part of described slide plate has a cavity, the bottom surface of described cavity has through hole, the surrounding of described through hole is provided with a plurality of bolt mounting holes, the two ends up and down of described cylinder supporting drum are respectively equipped with adpting flange, between bolt mounting holes in described lower adpting flange and slide plate cavity, be bolted, the sidewall of described cylinder supporting drum is provided with disc and supports, described support is provided with the cold screen of 80K outward, the top adpting flange of described cylinder supporting drum is connected to the cold matter member supporting for rest superconducting magnet feeder system.
The two ends, left and right of described slide plate have sliding limit triangular in shape, cross section.
Described cylinder supporting drum adopts less high-strength metal material or the high strength composite of thermal conductivity, and the cold screen of described 80K can reduce the radiation heat of 300K room temperature to the cold matter parts of 4.2K.
Wherein said bolt has been used the composite material sleeve with low thermal conductivity, and can prevent loosening double nut.
Wherein said bolt collar has lower thermal conductivity, long-pending for the direct contact surface reducing between metal parts, can play the effect that reduces heat by conduction load.
Wherein said slide plate and cylinder supporting drum: one end can be connected with 300K room temperature parts, the other end can be connected with 4.2K low temperature parts, and near cylinder supporting drum intermediate portion, the cold screen of welding supports the cold screen of 80K.
Described slidably cold screen, is characterized in that: it can be free to slide to compensate along slide guide direction the displacement that in process of expansion and contraction, cold screen produces.
Wherein said cylinder supporting drum not only has lower capacity of heat transmission, also has higher intensity.
Described slide plate has the low coefficient of friction material of self-lubricating property on the surface contacting with sliding rail, has reduced the surface friction drag of friction pair.
Described slide plate has recessed curved cavity, is not only convenient to be connected with cylinder supporting drum, also increases the path of heat conduction.
The feature that the present invention has is simple in structure, mechanical strength is high, the capacity of heat transmission is lower, but because it is operated under the environment of low temperature, vacuum, strong electromagnetic, therefore be applicable to the displacement that in vacuum system, cryogenic device or superconduct physical unit, compensation causes owing to expanding with heat and contract with cold, can also bear the load such as larger torsional moment, single force simultaneously.The present invention, under the help of cryogenic technique, materials science, provides a kind of slidably support that can reliably working under low temperature, vacuum, strong electromagnetic environment, and this supported design method all will have reference significance in vacuum technique, cryogenic technique, superconductor technology field.
Accompanying drawing explanation
Fig. 1 is STRUCTURE DECOMPOSITION schematic diagram of the present invention.
Fig. 2 is mounting structure schematic diagram of the present invention.
Embodiment
Shown in Fig. 1, Fig. 2:
---the cold screen 14 of 80k---the cold matter parts 15 of 4.2K---300K room temperature 16---moment of torsion 17---vertical force 18---lateral force that label in Fig. 2 is: 13
A kind of low temperature, vacuum, slidably support under strong electromagnetic environment, the slide plate 1 that comprises slide rail and match, cylinder supporting drum 2, cold screen 3, the middle part of described slide plate 1 has a cavity 4, the bottom surface of described cavity 4 has through hole 5, the surrounding of described through hole 5 is provided with a plurality of bolt mounting holes 6, the two ends up and down of described cylinder supporting drum 2 are respectively equipped with adpting flange 7, 8, between described lower adpting flange 8 and bolt mounting holes 6 in slide plate cavity 4, by bolt 9, be connected, pad 13 between combined of described flange 8 and cavity 4 reduces both area of contact, the sidewall of described cylinder supporting drum 2 is provided with disc and supports 10, the outer cold screen 3 of 80K that is provided with of described support 10.The top adpting flange of described cylinder supporting drum is connected to the support of the cold matter parts of rest superconducting magnet feeder system.
The two ends, left and right of described slide plate 1 have sliding limit 11 triangular in shape, cross section.
Described cylinder supporting drum 2 adopts less high-strength metal material or the high strength composite of thermal conductivity, and the cold screen 3 of described 80K can reduce the radiation heat of 300K room temperature to the cold matter parts of 4.2K.
Wherein said bolt 9 has been used the composite material sleeve 12 of low thermal conductivity, and can prevent loosening double nut.
Wherein said composite material sleeve 12 has lower thermal conductivity, long-pending for the direct contact surface reducing between metal parts, can play the effect that reduces heat by conduction load.
Wherein said slide plate 1 and cylinder supporting drum 2: one end can be connected with 300K room temperature parts by slide rail, the other end can be connected with 4.2K low temperature parts, and near cylinder supporting drum 2 intermediate portions, the cold screen of welding supports on 10 and has the cold screen 3 of 80K.
Wherein said whole sliding support, not only has lower gas efficiency, and has lower permeability, under low temperature, vacuum, strong electromagnetic environment, can bear larger thermal stress, can also bear the load such as larger moment of torsion, single force.
Wherein said cold screen 3 can be free to slide to compensate along slide guide direction the displacement that in process of expansion and contraction, cold screen 3 produces.
Wherein said cylinder supporting drum 2 not only has lower capacity of heat transmission, also has higher intensity.
The low coefficient of friction material that described slide plate 1 has self-lubricating property on the surface contacting with sliding rail has reduced surface friction drag.
Described slide plate 1 has the structure of cavity, is not only convenient to be connected with cylinder supporting drum 2, also increases the path of heat conduction.
The above is only preferred embodiments of the present invention, not to any pro forma restriction of the present invention.In fact, so long as be desirably under low temperature, vacuum, strong electromagnetic environment, bear compared with high pulling torque and external force, and require the as far as possible little support of heat by conduction load by supporting, can be designed with reference to technological scheme of the present invention.In every case being the content that does not depart from technological scheme of the present invention, is only the simple modification of described structure being done according to technical spirit of the present invention, or equivalent variations and modification, within all still belonging to the scope of technical solution of the present invention.
Claims (1)
1. a low temperature, vacuum, slidably support under strong electromagnetic environment, comprise slide rail and the slide plate matching, cylinder supporting drum, cold screen, it is characterized in that: the middle part of described slide plate has a cavity, the bottom surface of described cavity has through hole, the surrounding of described through hole is provided with a plurality of bolt mounting holes, the two ends up and down of described cylinder supporting drum are respectively equipped with top adpting flange and bottom adpting flange, between bolt mounting holes in described bottom adpting flange and slide plate cavity, be bolted, the bottom adpting flange of described cylinder supporting drum and slide plate pocket surfaces separate by the pad of bolt intermediate portion, the sidewall of described cylinder supporting drum is provided with disc and supports, described disc supports the outer cold screen of 80K that is provided with, the top adpting flange of described cylinder supporting drum is for the cold matter parts of rest superconducting magnet feeder system,
The two ends, left and right of described slide plate have sliding limit triangular in shape, cross section;
Described cylinder supporting drum adopts less high-strength metal material or the high strength composite of thermal conductivity, and the cold screen of 80K that described thermal conductivity is larger can reduce the radiation heat of 300K room temperature to the cold matter parts of 4.2K;
Described bolt has been used with composite material sleeve, and can prevent loosening double nut;
Described compound material bolt sleeve has lower thermal conductivity, long-pending for the direct contact surface reducing between metal parts, can play the effect that reduces heat by conduction load;
Described slide plate is connected with 300K room temperature parts by slide rail with cylinder supporting drum one end, and the other end is connected with 4.2K low temperature parts;
The metallic material that described slide plate has self-lubricating property on the surface contacting with slide rail has reduced surface friction drag; The cavity of described slide plate is not only convenient to be connected with cylinder supporting drum, has also increased the path of heat conduction;
The lower surface of described slide plate cavity upper surface and cylinder supporting drum lower flange separates by the pad at bolt middle part, has reduced these two surperficial direct contact surfaces long-pending, has increased heat conducting path, has reduced heat by conduction load;
Described cold screen is free to slide to compensate along slide rail direction the displacement that in process of expansion and contraction, cold screen produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456283.7A CN102563296B (en) | 2011-12-30 | 2011-12-30 | Slidable support under low-temperature, vacuum and strong electromagnetic environments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456283.7A CN102563296B (en) | 2011-12-30 | 2011-12-30 | Slidable support under low-temperature, vacuum and strong electromagnetic environments |
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| Publication Number | Publication Date |
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| CN102563296A CN102563296A (en) | 2012-07-11 |
| CN102563296B true CN102563296B (en) | 2014-05-07 |
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| CN201110456283.7A Expired - Fee Related CN102563296B (en) | 2011-12-30 | 2011-12-30 | Slidable support under low-temperature, vacuum and strong electromagnetic environments |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645403B (en) * | 2012-04-16 | 2015-11-18 | 中国科学院等离子体物理研究所 | The device of friction factor under measurement low temperature, vacuum, strong electromagnetic environment |
| CN103903830B (en) * | 2014-03-10 | 2016-05-18 | 中国科学院等离子体物理研究所 | Cold supporting construction in superconducting magnet feeder system |
| CN104332185B (en) * | 2014-08-30 | 2016-09-28 | 中国科学院等离子体物理研究所 | The leading experiment porch of following fusion reactor divertor parts military service performance |
| CN108120649B (en) * | 2017-11-28 | 2020-01-17 | 中国科学院合肥物质科学研究院 | Experimental device for be used for studying slide support friction behavior |
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| US4781034A (en) * | 1987-06-10 | 1988-11-01 | Universities Research Association, Inc. | Cryogenic support system |
| CN2455995Y (en) * | 2000-12-29 | 2001-10-24 | 中国科学院等离子体物理研究所 | High temperature differential flexible support |
| CN1470798A (en) * | 2003-06-04 | 2004-01-28 | 中国科学院等离子体物理研究所 | Low-temperature support apparatus |
| CN201162918Y (en) * | 2007-12-04 | 2008-12-10 | 北京卫星环境工程研究所 | Hot test stand of large platform spacecraft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100109824A1 (en) * | 2008-11-06 | 2010-05-06 | Wang Nmr Inc | Unitary multi-cell concentric cylindrical box girder coldmass apparatus for open air mri to avoid superconducting magnet quench |
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|---|---|---|---|---|
| US4781034A (en) * | 1987-06-10 | 1988-11-01 | Universities Research Association, Inc. | Cryogenic support system |
| CN2455995Y (en) * | 2000-12-29 | 2001-10-24 | 中国科学院等离子体物理研究所 | High temperature differential flexible support |
| CN1470798A (en) * | 2003-06-04 | 2004-01-28 | 中国科学院等离子体物理研究所 | Low-temperature support apparatus |
| CN201162918Y (en) * | 2007-12-04 | 2008-12-10 | 北京卫星环境工程研究所 | Hot test stand of large platform spacecraft |
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| "HT27U 超导托卡马克冷质部件支撑结构分析";陈先忠;《核科学与工程》;20030615;第23卷(第2期);第161-164页 * |
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| "ITER过渡馈线辅助支撑结构设计及传热计算";王建青;《原子能科学技术》;20090815;第43卷(第8期);第716-718页 * |
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