CN117969298A - High-temperature magnetic levitation suspension guiding test device and method - Google Patents
High-temperature magnetic levitation suspension guiding test device and method Download PDFInfo
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- CN117969298A CN117969298A CN202311685129.6A CN202311685129A CN117969298A CN 117969298 A CN117969298 A CN 117969298A CN 202311685129 A CN202311685129 A CN 202311685129A CN 117969298 A CN117969298 A CN 117969298A
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- 238000005339 levitation Methods 0.000 title claims abstract description 35
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009864 tensile test Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000013500 data storage Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a high-temperature magnetic levitation suspension guiding test device and a method, comprising a base, a linear traversing module, a tensile testing machine and a Dewar fixing device; the permanent magnet track is connected to the linear traversing module, and the linear traversing module drives the permanent magnet track to move; the tensile testing machine comprises a vertical support, a vertical movable cross beam and a vertical driving motor, wherein the vertical support is fixed at the top of the base, and the vertical movable cross beam is connected to the vertical support and driven by the vertical driving motor to move vertically; the bottom of the vertical movable cross beam is connected with a low-temperature Dewar through a Dewar fixing device, the low-temperature Dewar is connected with a tension sensor through a heat insulation plate, and the tension sensor is fixed on one side of the Dewar fixing device through a sensor fixing piece and is electrically connected with an upper computer; the vertical driving motor controls the vertical movement of the vertical moving cross beam to control the suspension Gap of the low-temperature Dewar. The invention can effectively test the suspension force and the guiding force of the low-temperature Dewar at different positions in the permanent magnet track.
Description
Technical Field
The invention relates to the technical field of superconducting magnetic levitation, in particular to a levitation guiding test device and method for high-temperature magnetic levitation.
Background
The high-temperature superconductive magnetic levitation system has self-stable levitation and guiding capabilities, and has the advantages of simple structure, no need of electric power maintenance, energy conservation, environmental protection and the like. Has wide application prospect in the fields of ground ultra-high speed transportation, electromagnetic emission and the like.
The high-temperature superconductive magnetic levitation system has limited levitation and guidance performances, and the levitation and guidance performances are different at different positions of the permanent magnet track due to different magnetic field intensity distribution of the permanent magnet track. Most of the prior devices can only test one of levitation force and guiding force, and although a part of sensors can measure stress conditions in multiple directions at the same time, the cost is high.
In order to study the levitation force and guiding force characteristics of the low-temperature dewar at different positions of the permanent magnet track, the invention provides a levitation guiding test device and a levitation guiding test method of a high-temperature superconducting magnetic levitation system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a high-temperature magnetic levitation guiding test device and method, which can effectively test levitation force and guiding force of a low-temperature Dewar at different positions in a permanent magnet track.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A high-temperature magnetic levitation suspension guiding testing device comprises a base, a linear traversing module, a tensile testing machine and a Dewar fixing device;
The linear traversing module is arranged on the base, the permanent magnet track is connected to the linear traversing module, and the linear traversing module drives the permanent magnet track to move;
The tensile testing machine comprises a vertical support, a vertical movable cross beam and a vertical driving motor, wherein the vertical support is fixed at the top of the base, and the vertical movable cross beam is connected to the vertical support and driven by the vertical driving motor to move vertically;
the bottom of the vertical movable cross beam is connected with a low-temperature Dewar through a Dewar fixing device, the low-temperature Dewar is connected with a tension sensor through a heat insulation plate, and the tension sensor is fixed on one side of the Dewar fixing device through a sensor fixing piece and is electrically connected with an upper computer; the vertical driving motor controls the vertical movement of the vertical moving cross beam so as to control the suspension Gap of the low-temperature Dewar;
The relative position between the low-temperature Dewar and the permanent magnet track is changed by the tension tester and the linear traversing module, and the dynamic characteristics of the suspension force and the guiding force of the low-temperature Dewar passing through different positions of the permanent magnet track are measured by the tension sensor.
Further, the linear traversing module comprises a linear motor and a screw rod servo system driven by the linear motor, and the permanent magnet track is used for fixing the top of a sliding seat of the screw rod servo system through a permanent magnet track substrate.
Further, the linear motor is connected to the horizontal plate through the motor fixing piece, one end of the motor fixing piece is fixedly connected with the horizontal plate, and the other end of the motor fixing piece is fixedly connected with the side part of the linear motor.
Furthermore, the permanent magnet tracks are arranged in a Halbach array structure along the transverse direction by adopting permanent magnets.
Furthermore, the two stressed side walls of the low-temperature dewar are respectively reinforced by epoxy resin, so that the damage to the low-temperature dewar caused by overlarge stress is prevented.
Further, the Dewar fixing device comprises a flange interface and a flange connecting plate, wherein the flange interface is used for fixing the flange connecting plate below the vertical moving beam, four optical axis supporting seats are fixed below the flange connecting plate, an optical axis guide rail is respectively fixed between the two transverse optical axis supporting seats, two optical axis bearings are respectively connected between each optical axis guide rail in a sliding manner, and each optical axis bearing is respectively fixed at the top of the low-temperature Dewar.
The invention discloses a testing method of a suspension guiding testing device of a high-temperature superconductive magnetic levitation system, which comprises the following steps:
S1: the high-temperature superconducting materials are arranged at the bottom of the low-temperature dewar according to a preset arrangement, and are locked through a pressing plate, so that the linear traversing module is controlled, and the relative position of the permanent magnet track and the low-temperature dewar is controlled;
S2: the vertical driving motor is used for adjusting the height of the vertical moving cross beam, and the vertical height of the low-temperature Dewar is fixed according to the preset field cooling height;
S3: injecting liquid nitrogen into the low-temperature Dewar to ensure that the high-temperature superconducting material is completely soaked in the liquid nitrogen, and performing field cooling on the high-temperature superconducting material;
s4: when the high-temperature superconducting material is completely in a superconducting state, starting a tension tester, and controlling the vertical moving beam to move by the tension tester according to a preset program to further drive the Dewar to move;
s5: in the movement process of the Dewar, the upper computer collects displacement data of the Dewar and suspension force and guide force data collected by the tension sensor;
s6: and after the experiment is finished, carrying out data storage processing on the acquired data.
By adopting the technical scheme, the invention has the beneficial effects that: the low-temperature Dewar is fixed on the optical axis bearing, is connected with the tension sensor through the heat insulation plate, and measures the levitation force and the guiding force of the low-temperature Dewar at different positions of the permanent magnet track through the tension sensor; the two side walls of the low-temperature Dewar are reinforced, so that the safety in the measuring process is improved; the heat insulating plate is a low-temperature-resistant heat insulating material, so that the tension sensor is prevented from being influenced by low temperature due to long-time testing, and the friction coefficient between components is small, so that the testing precision is effectively ensured.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic transverse view of the present invention;
FIG. 2 is a front view of a dewar fixture and cryogenic dewar connection;
Fig. 3 is a schematic diagram of a measurement process.
Description of the embodiments
As shown in FIGS. 1-3, the high-temperature magnetic levitation suspension guiding test device comprises a base 3, a linear traversing module 1, a tensile testing machine 2 and a Dewar fixing device 205.
The linear traversing module 1 is arranged on the base 3, the permanent magnet track 102 is connected to the linear traversing module 1, and the linear traversing module 1 drives the permanent magnet track 102 to move.
The tensile testing machine 2 comprises a vertical support 201, a vertical movable cross beam 202 and a vertical driving motor 203, wherein the vertical support 201 is fixed at the top of the base 3, and the vertical movable cross beam 202 is connected to the vertical support 201 and driven by the vertical driving motor 203 to move vertically;
The bottom of the vertical movable beam 202 is connected with the low-temperature dewar 206 through a dewar fixing device 205, the low-temperature dewar 206 is connected with a tension sensor 404 through a heat insulation plate 407, and the tension sensor 404 is fixed on one side of the dewar fixing device 205 through a sensor fixing piece 405 and is electrically connected with an upper computer; the vertical driving motor 203 controls the vertical movement of the vertical moving beam 202 to control the levitation Gap of the cryogenic dewar 206; the heat insulation board 407 is a heat insulation material with low temperature resistance, so that the tension sensor 404 is not affected by low temperature due to long-time testing, and the friction coefficient between components is small, thereby effectively ensuring the testing precision.
The relative position between the low-temperature dewar 206 and the permanent magnetic track 102 is changed by the tension tester 2 and the linear traversing module 1, and the dynamic characteristics of the levitation force and the guiding force of the low-temperature dewar 206 at different positions of the permanent magnetic track 102 are measured by the tension sensor 404.
The linear traversing module1 comprises a linear motor 104 and a screw rod servo system driven by the linear motor 104, wherein a permanent magnet track 102 is fixed on the top of a sliding seat of the screw rod servo system through a permanent magnet track substrate 102. The linear motor 104 is connected to the horizontal plate 105 through the motor fixing member 103, one end of the motor fixing member 103 is fixedly connected with the horizontal plate 105, and the other end of the motor fixing member 103 is fixedly connected with the side portion of the linear motor 104.
The permanent magnet tracks 102 are arranged in a Halbach array structure in the transverse direction by adopting permanent magnets.
The two stressed side walls of the low-temperature dewar 206 are respectively reinforced by epoxy resin, so that damage to the low-temperature dewar 206 caused by excessive stress is prevented.
The Dewar fixing device 205 comprises a flange interface 207 and a flange connection plate 401, the flange interface 207 fixes the flange connection plate 401 below the vertical moving beam 202, four optical axis supporting seats 406 are fixed below the flange connection plate 401, an optical axis guide rail 402 is respectively fixed between two transverse optical axis supporting seats 406, two optical axis bearings 403 are respectively connected between each optical axis guide rail 402 in a sliding manner, and each optical axis bearing 403 is respectively fixed at the top of the low-temperature Dewar 206 to fix the low-temperature Dewar 206 with different sizes.
As shown in FIG. 3, a test method of a levitation guiding test device of a high-temperature superconductive magnetic levitation system comprises the following steps:
S1: the high-temperature superconducting materials 208 are arranged at the bottom of the low-temperature dewar 206 according to a preset arrangement, and are locked by the pressing plate, so that the linear traversing module1 is controlled, and the relative positions of the permanent magnet track 102 and the low-temperature dewar 206 are controlled;
S2: the vertical height of the low-temperature dewar 206 is fixed according to the preset field cooling height by adjusting the height of the vertical movable cross beam 202 through the vertical driving motor 203;
s3: injecting liquid nitrogen into the low-temperature Dewar 206 to ensure that the high-temperature superconducting material 208 is completely soaked in the liquid nitrogen, and performing field cooling on the high-temperature superconducting material 208;
S4: waiting until the high-temperature superconducting material 208 completely enters a superconducting state, starting the tension tester 2, and controlling the vertical moving beam 202 to move by the tension tester 2 according to a preset program to further drive the Dewar to move;
S5: in the Dewar moving process, an upper computer collects displacement data of the Dewar and levitation force and guide force data collected by a tension sensor 404;
s6: and after the experiment is finished, carrying out data storage processing on the acquired data.
While particular embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that various changes and modifications may be made to this embodiment without departing from the spirit and scope of the invention, but these changes and modifications are within the scope of the invention.
Claims (7)
1. A high-temperature magnetic levitation suspension guiding testing device is characterized in that: comprises a base, a linear traversing module, a tension tester and a Dewar fixing device;
The linear traversing module is arranged on the base, the permanent magnet track is connected to the linear traversing module, and the linear traversing module drives the permanent magnet track to move;
The tensile testing machine comprises a vertical support, a vertical movable cross beam and a vertical driving motor, wherein the vertical support is fixed at the top of the base, and the vertical movable cross beam is connected to the vertical support and driven by the vertical driving motor to move vertically;
the bottom of the vertical movable cross beam is connected with a low-temperature Dewar through a Dewar fixing device, the low-temperature Dewar is connected with a tension sensor through a heat insulation plate, and the tension sensor is fixed on one side of the Dewar fixing device through a sensor fixing piece and is electrically connected with an upper computer; the vertical driving motor controls the vertical movement of the vertical moving cross beam so as to control the suspension Gap of the low-temperature Dewar;
The relative position between the low-temperature Dewar and the permanent magnet track is changed by the tension tester and the linear traversing module, and the dynamic characteristics of the suspension force and the guiding force of the low-temperature Dewar passing through different positions of the permanent magnet track are measured by the tension sensor.
2. The high temperature magnetic levitation guiding test device according to claim 1, wherein: the linear traversing module comprises a linear motor and a screw rod servo system driven by the linear motor, and the permanent magnet track is used for fixing the top of a sliding seat of the screw rod servo system through a permanent magnet track substrate.
3. The high temperature magnetic levitation guiding test device as set forth in claim 2, wherein: the linear motor is connected to the horizontal plate through the motor fixing piece, one end of the motor fixing piece is fixedly connected with the horizontal plate, and the other end of the motor fixing piece is fixedly connected with the side part of the linear motor.
4. The high temperature magnetic levitation guiding test device according to claim 1, wherein: the permanent magnet tracks are arranged by adopting permanent magnets along the transverse direction according to a Halbach array structure.
5. The high temperature magnetic levitation guiding test device according to claim 1, wherein: the two stressed side walls of the low-temperature dewar are respectively reinforced by epoxy resin, so that the damage to the low-temperature dewar caused by overlarge stress is prevented.
6. The high temperature magnetic levitation guiding test device according to claim 1, wherein: the Dewar fixing device comprises a flange interface and a flange connecting plate, wherein the flange interface is used for fixing the flange connecting plate below the vertical moving cross beam, four optical axis supporting seats are fixed below the flange connecting plate, an optical axis guide rail is respectively fixed between the two transverse optical axis supporting seats, two optical axis bearings are respectively connected between each optical axis guide rail in a sliding mode, and each optical axis bearing is respectively fixed at the top of the low-temperature Dewar.
7. The method for testing the levitation guide testing device of the high-temperature superconductive magnetic levitation system according to any one of claims 1 to 6, wherein the method comprises the following steps: the test method comprises the following steps:
S1: the high-temperature superconducting materials are arranged at the bottom of the low-temperature dewar according to a preset arrangement, and are locked through a pressing plate, so that the linear traversing module is controlled, and the relative position of the permanent magnet track and the low-temperature dewar is controlled;
S2: the vertical driving motor is used for adjusting the height of the vertical moving cross beam, and the vertical height of the low-temperature Dewar is fixed according to the preset field cooling height;
S3: injecting liquid nitrogen into the low-temperature Dewar to ensure that the high-temperature superconducting material is completely soaked in the liquid nitrogen, and performing field cooling on the high-temperature superconducting material;
s4: when the high-temperature superconducting material is completely in a superconducting state, starting a tension tester, and controlling the vertical moving beam to move by the tension tester according to a preset program to further drive the Dewar to move;
s5: in the movement process of the Dewar, the upper computer collects displacement data of the Dewar and suspension force and guide force data collected by the tension sensor;
s6: and after the experiment is finished, carrying out data storage processing on the acquired data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311685129.6A CN117969298A (en) | 2023-12-08 | 2023-12-08 | High-temperature magnetic levitation suspension guiding test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311685129.6A CN117969298A (en) | 2023-12-08 | 2023-12-08 | High-temperature magnetic levitation suspension guiding test device and method |
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| Publication Number | Publication Date |
|---|---|
| CN117969298A true CN117969298A (en) | 2024-05-03 |
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| CN202311685129.6A Pending CN117969298A (en) | 2023-12-08 | 2023-12-08 | High-temperature magnetic levitation suspension guiding test device and method |
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| CN (1) | CN117969298A (en) |
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- 2023-12-08 CN CN202311685129.6A patent/CN117969298A/en active Pending
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