CN205301097U - Superconductive strand low temperature capability test device - Google Patents
Superconductive strand low temperature capability test device Download PDFInfo
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- CN205301097U CN205301097U CN201521028148.2U CN201521028148U CN205301097U CN 205301097 U CN205301097 U CN 205301097U CN 201521028148 U CN201521028148 U CN 201521028148U CN 205301097 U CN205301097 U CN 205301097U
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- superconducting strand
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- cryogenic property
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Abstract
The utility model discloses a superconductive strand low temperature capability test device, including the inside dewar that provides low temperature environment, with dewar seal installation's jib and protective shield of radiation, arrange in the inside jib below of dewar stress loading device, establish extensimeter and the external signal acquisition sensor parts that superconductive strand is met an emergency are tested to a pair of current lead between stress loading device and the external superconductive power and centre gripping being used for on stress loading device, on stress loading device is arranged in to superconductive strand test sample, provide test current by current lead, the extensimeter measurement size of meeting an emergency, external signal acquisition sensor gathers test data to obtain the performance curve of superconductive strand. The utility model discloses a device can overcome that the structure is complicated, with high costs among the prior art, the axial strain loading is inhomogeneous and the practicality is poor, measurement accuracy low grade defect to realize that measurement accuracy is high, the axial strain loading is reasonable even, advantage that simple structure and practicality are good.
Description
Technical field
This utility model relates to superconductor test and Superconductive electric technology field, in particular to a kind of low-temperature superconducting strand strain and critical current properties test device.
Background technology
Development along with science and technology, superconductor technology is more and more applied in scientific research, low temperature superconducting material is Nb3Sn, NbTi etc. especially, has been widely used in large-scale nuclear fusion device, superconduction nuclear magnetic resonance device, high-energy particle accelerator device, nuclear magnetic resonance spectrometer etc. The Superconducting Strand being made up of superconductor is normally operated in highfield, the extreme environments such as big electric current and extremely low temperature, be subject in actual motion colding and heat succeed each other the complex environment of the multi-scenarios method such as change, electromagnetism Lorentz force and mechanical stress simultaneously, and the comprehensive function of these external factor can cause that the superconducting characteristic (referring mainly to critical current) of Superconducting Strand produces notable degeneration. So that the hydraulic performance decline of superconducting magnet, bring potential safety hazard to the stable operation of superconducting magnet apparatus. Therefore, in order to safely and effectively design superconducting magnet, it is necessary to the performance under the true operating condition of Superconducting Strand is carried out experimentation, thus the safely and effectively design for superconducting magnet apparatus provides strong support.
At present, external relevant experiment has be carried out for many years, domestic also have the experiment test device that some are relevant, but according to literature survey, state's build-in test device ubiquity measurement apparatus is complicated, cost is high, axial strain loads uneven, certainty of measurement is low, and measurement error is big, and cannot efficiently be rapidly performed by the shortcoming such as experimentation of different operating mode. It is simple that this utility model has principle, easy to operate with certainty of measurement is high, error is little and quickly carries out the characteristics such as multi-state experimentation, it is possible to meets the efficient testing requirement fast and accurately of engineering Superconducting Strand performance.
Utility model content
The purpose of this utility model is in that, for the problems referred to above, it is provided that a kind of Superconducting Strand cryogenic property test device, it is achieved the advantage of high efficiency, rapidity, accuracy and brief and practical.
For achieving the above object, the technical solution adopted in the utility model is:
One Superconducting Strand cryogenic property test device, it is characterised in that: include suspension rod and the protective shield of radiation of the internal Dewar that low temperature environment is provided and the sealing installation of described Dewar, be placed in the stress loading device below the internal suspension rod of Dewar, a pair current feed being located between described stress loading device and extraneous superconduction power supply and extensometer and the external signal collection sensor element for the testing Superconducting Strand strain that are clamped on stress loading device; Superconducting Strand test sample is placed on stress loading device, current feed provide test electric current, and strain size measured by extensometer, and external signal gathers sensor acquisition test data, thus obtaining the performance curve of Superconducting Strand.
Described Superconducting Strand cryogenic property test device, it is characterised in that: described protective shield of radiation is located between stress loading device and Dewar.
Described Superconducting Strand cryogenic property test device, it is characterised in that: described stress loading device includes placing and the sample pad plate member of fixing test sample, the backing plate that supports sample backing plate support parts, are placed in and support power transmission shaft below parts and Worm and worm-wheel gearing and support the bottom support disc parts of whole stress loading device.
Described Superconducting Strand cryogenic property test device, it is characterized in that: described sample pad plate member includes the sample backing plate of the Os Canitis head dummy of two symmetrically placed Wedge grippings, a big at both ends and small in middle, the two ends of sample backing plate are fixed on backing plate respectively through Wedge gripping and are supported on parts, and extensometer is clamped on sample backing plate; Test sample is welded on sample backing plate when test, and sample backing plate is fixed by screw and Wedge gripping, and sample is loaded test electric current by being connected with current feed by Wedge gripping.
Described Superconducting Strand cryogenic property test device, it is characterised in that: described sample backing plate is detachable, needs to change different materials according to test.
Described Superconducting Strand cryogenic property test device, it is characterized in that: described backing plate supports parts and includes two support slippers, one of them is fixing support slipper, another be can on bottom disc movable slider slidably, movable slider is connected with Worm and worm-wheel gearing by power transmission shaft.
Described Superconducting Strand cryogenic property test device, it is characterised in that: there is the screw thread that size is certain described power transmission shaft and movable slider coupling part, support transmission shaft support and are fixed on bottom disc, have bearing to be connected between support with power transmission shaft.
Described Superconducting Strand cryogenic property test device, it is characterised in that: described suspension rod adopts hollow pipe form.
Described Superconducting Strand cryogenic property test device, it is characterised in that: connect with movable slider guide post arranged below below described bottom disc.
Described Superconducting Strand cryogenic property test device, it is characterised in that: the test information of described signals collecting sensor acquisition includes the Superconducting Strand electric current under electric current differently strained, different, voltage and temperature.
Current feed one end is placed in the outside and extraneous superconduction power supply of Dewar and is connected, and one end is connected with stress loading device, intermediate location employing variable cross-section form.
Described Superconducting Strand cryogenic property test device, it is characterised in that cooled cryostat adopts and soaks the type of cooling.
The utility model has the advantages that:
The superconducting characteristic of the Superconducting Strand of the different-diameters such as Nb3Sn, NbTi that superconducting magnet in current engineering is commonly used can be carried out the experimentation of complete series by device of the present utility model, thus overcoming, measurement apparatus in existing testing scheme is complicated, cost is high, axial stress loads uneven, certainty of measurement is low, measurement error is big, and cannot efficiently be rapidly performed by the shortcoming such as experimentation of different operating mode;Other feature and advantage of the present utility model will be set forth in the following description, and, part from description it is clear that or by enforcement this utility model and understand.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and becomes a part for description, is used for setting forth this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model.
Fig. 1 is the structural representation of Superconducting Strand cryogenic property test device.
Fig. 2 is the structural representation of stress loading device.
In conjunction with accompanying drawing, in this utility model embodiment, accompanying drawing labelling is as follows:
1-Dewar; 2-protective shield of radiation; 3-stress loading device 4-suspension rod; 5-test sample; 6-sample backing plate; 7-sample pad board clamp; 8-support slipper; 9-movable slider; 10-power transmission shaft; 11-worm and gear; 12-bottom disc; 13-current feed; 14-extensometer; 15-power transmission shaft props up bracer; 16-guide post.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.
In view of the defect existed in prior art, as depicted in figs. 1 and 2, it is provided that a kind of Superconducting Strand cryogenic property test device, strain and critical current test device particularly for the Superconducting Strand low temperature close to actual condition. This Superconducting Strand cryogenic property test device, principle is simple, easy to operate, certainty of measurement is high, error is little, and can quickly carry out the characteristics such as multi-state experimentation, it is possible to meet the performance test demand of conventional Superconducting Strand in engineering, have important practical significance and scientific research meaning.
With reference to Fig. 1 and Fig. 2, according to this utility model example, the Superconducting Strand cryogenic property test device of the present embodiment, including the Dewar 1 with low temperature environment, the suspension rod 4 and protective shield of radiation 2 installed is sealed with described cooled cryostat, it is placed in the stress loading device 3 below the internal suspension rod of Dewar, a pair current feed 13 between described stress loading device 3 and extraneous superconduction power supply, and the extensometer 14 of test Superconducting Strand strain and outside signals collecting sensor element. Test sample 5 is placed on stress loading device, and test sample 5 is provided test electric current by current feed 13 by extraneous superconduction power supply, and strain size measured by extensometer 14, and external signal gathers sensor element collecting test data.
Here, test information spinner to include the Superconducting Strand electric current under differently strained condition, voltage and temperature. Cooled cryostat 1 adopts the immersion type type of cooling. Suspension rod 4 adopts hollow pipe form.
Wherein, above-mentioned stress loading device 3, including for placing and the sample backing plate 6 of fixing test sample, the backing plate supporting sample backing plate supports parts (backing plate supports parts and includes support slipper 8 and movable slider 9), it is placed in worm and gear 11 and power transmission shaft 10 that the offer axial strain in the middle of parts is provided, it is clamped in the extensometer 14 on sample backing plate 6, and supports the bottom disc 12 of whole stress loading. Have, at power transmission shaft 10 and movable slider 9 connecting portion, the screw thread that size is certain, support that the support of power transmission shaft 10 is fixed on bottom disc 12, between support with power transmission shaft 10, have bearing to be connected.
Above-described embodiment Superconducting Strand cryogenic property test device, mainly include cooled cryostat 1, four, suspension rod, radiation shield is a set of, sample backing plate is some, sample is some, current feed a pair, worm and gear one pair, extensometer one, outer superconduction power supply one and outside acquisition system a set of.
Use the Superconducting Strand cryogenic property test device of above-described embodiment, first test sample 5 is welded on sample backing plate 6, package unit is placed in cooled cryostat 1, and device is cooled to the low temperature environment that experiment is required by the tube for transfusion liquid helium then passing through Dewar 1 upper flanges. Under the environment of externally-applied magnetic field, rotate worm and gear 11, by screw drive movable slider 9 transverse shifting on power transmission shaft 10, drive sample backing plate 6 and test sample 5 to carry out axial tension, it is achieved the strain loading to sample; Sample is carried out current load by current feed 13 by external power source, extensometer 14 gathers axial strain signal, gathered sensor element by external signal simultaneously and will carry out data acquisition, gather differently strained under Superconducting Strand electric current, voltage and temperature etc., eventually through analytical calculation, it is achieved the cryogenic property test of Superconducting Strand.
The Superconducting Strand cryogenic property test device of above-described embodiment, realizes the sample test environment under different operating mode by changing sample backing plate 6; By the worm and gear 11 of the high transmission ratio in stress loading device 3 and power transmission shaft 10 screw thread, it is achieved the high-resolution of Superconducting Strand axial strain is applied; Uniformly effectively applying of axial strain is realized by sound slide block and guide post; Extensometer 14 is adopted to realize the high precision collecting of strain measurement. Can simply, economic, the Superconducting Strand cryogenic property test realizing limited magnetic field space accurately, rapidly and efficiently, the engineering design and application for its Superconducting Strand provides technical support.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this utility model, although this utility model being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (10)
1. a Superconducting Strand cryogenic property test device, it is characterised in that: include suspension rod and the protective shield of radiation of the internal Dewar that low temperature environment is provided and the sealing installation of described Dewar, be placed in the stress loading device below the internal suspension rod of Dewar, a pair current feed being located between described stress loading device and extraneous superconduction power supply and extensometer and the external signal collection sensor element for the testing Superconducting Strand strain that are clamped on stress loading device; Superconducting Strand test sample is placed on stress loading device, current feed provide test electric current, and strain size measured by extensometer, and external signal gathers sensor acquisition test data, thus obtaining the performance curve of Superconducting Strand.
2. Superconducting Strand cryogenic property test device as claimed in claim 1, it is characterised in that: described protective shield of radiation is located between stress loading device and Dewar.
3. Superconducting Strand cryogenic property test device as claimed in claim 1 or 2, it is characterised in that: described stress loading device includes placing and the sample pad plate member of fixing test sample, the backing plate that supports sample backing plate support parts, are placed in and support power transmission shaft below parts and Worm and worm-wheel gearing and support the bottom support disc parts of whole stress loading device.
4. Superconducting Strand cryogenic property test device as claimed in claim 3, it is characterized in that: described sample pad plate member includes the sample backing plate of the Os Canitis head dummy of two symmetrically placed Wedge grippings, a big at both ends and small in middle, the two ends of sample backing plate are fixed on backing plate respectively through Wedge gripping and are supported on parts, Wedge gripping is connected with current feed, and extensometer is clamped on sample backing plate.
5. Superconducting Strand cryogenic property test device as claimed in claim 4, it is characterised in that: described sample backing plate is detachable, needs to change different materials according to test.
6. Superconducting Strand cryogenic property test device as claimed in claim 3, it is characterized in that: described backing plate supports parts and includes two support slippers, one of them is fixing support slipper, another be can on bottom disc movable slider slidably, movable slider is connected with Worm and worm-wheel gearing by power transmission shaft.
7. Superconducting Strand cryogenic property test device as claimed in claim 6, it is characterized in that: the screw thread that described power transmission shaft and movable slider coupling part have size certain, support transmission shaft support and be fixed on bottom disc, between support with power transmission shaft, have bearing to be connected.
8. Superconducting Strand cryogenic property test device as claimed in claim 1, it is characterised in that: described suspension rod adopts hollow pipe form.
9. Superconducting Strand cryogenic property test device as claimed in claim 7, it is characterised in that: connect with movable slider guide post arranged below below described bottom disc.
10. Superconducting Strand cryogenic property test device as claimed in claim 1, it is characterised in that: the test information of described signals collecting sensor acquisition includes the Superconducting Strand electric current under electric current differently strained, different, voltage and temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028148.2U CN205301097U (en) | 2015-12-09 | 2015-12-09 | Superconductive strand low temperature capability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028148.2U CN205301097U (en) | 2015-12-09 | 2015-12-09 | Superconductive strand low temperature capability test device |
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| Publication Number | Publication Date |
|---|---|
| CN205301097U true CN205301097U (en) | 2016-06-08 |
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| CN201521028148.2U Expired - Fee Related CN205301097U (en) | 2015-12-09 | 2015-12-09 | Superconductive strand low temperature capability test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445114A (en) * | 2015-12-09 | 2016-03-30 | 中国科学院合肥物质科学研究院 | Testing apparatus for low-temperature performance of superconductive strand |
| CN106940273A (en) * | 2017-01-17 | 2017-07-11 | 中国科学院合肥物质科学研究院 | A kind of critical performance testing device of Superconducting Strand bending strain |
| CN111983533A (en) * | 2020-08-02 | 2020-11-24 | 南京大学 | Superconducting testing device applied to various low-temperature platforms |
| CN112285452A (en) * | 2020-09-10 | 2021-01-29 | 河北工业大学 | Device and method for measuring low-temperature characteristics of electrical parameters |
-
2015
- 2015-12-09 CN CN201521028148.2U patent/CN205301097U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445114A (en) * | 2015-12-09 | 2016-03-30 | 中国科学院合肥物质科学研究院 | Testing apparatus for low-temperature performance of superconductive strand |
| CN106940273A (en) * | 2017-01-17 | 2017-07-11 | 中国科学院合肥物质科学研究院 | A kind of critical performance testing device of Superconducting Strand bending strain |
| CN106940273B (en) * | 2017-01-17 | 2019-07-02 | 中国科学院合肥物质科学研究院 | A kind of critical performance testing device of Superconducting Strand bending strain |
| CN111983533A (en) * | 2020-08-02 | 2020-11-24 | 南京大学 | Superconducting testing device applied to various low-temperature platforms |
| CN112285452A (en) * | 2020-09-10 | 2021-01-29 | 河北工业大学 | Device and method for measuring low-temperature characteristics of electrical parameters |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20161209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |