CN209979361U - Low-temperature mechanical performance test platform for composite material support piece - Google Patents
Low-temperature mechanical performance test platform for composite material support piece Download PDFInfo
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- CN209979361U CN209979361U CN201920338884.XU CN201920338884U CN209979361U CN 209979361 U CN209979361 U CN 209979361U CN 201920338884 U CN201920338884 U CN 201920338884U CN 209979361 U CN209979361 U CN 209979361U
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Abstract
The utility model discloses a low temperature mechanical properties test platform of combined material support piece, which is characterized in that, including low temperature dewar (11), mounting flange (5) is equipped with, sealing flange (4) are equipped with to the bottom of low temperature dewar (11), be equipped with a support flange (6) in low temperature dewar (11), support flange (6) bottom is connected on mounting flange (5) through a plurality of adiabatic supports (7), support flange (6) and the inner bag (15) bottom flange joint of low temperature dewar (11); a composite material supporting piece (9) is arranged in the inner container (15), the lower end of the composite material supporting piece (9) is installed on a boss of the supporting flange (6), the upper end of the composite material supporting piece is connected with the lower end of a guide rod ((12)) positioned in the inner container (15), the upper end of the guide rod ((12)) is led out from the sealing flange (4) and is connected with a force generating device, and a liquid injection pipe (14) communicated with the inner container (15) is arranged on the top end of the low-temperature Dewar (11).
Description
Technical Field
The utility model relates to a support piece mechanical properties test equipment, especially adopt combined material's support piece for superconducting magnet mechanical properties test at low temperature environment belongs to combined material low temperature mechanical properties test technical field.
Background
Superconducting devices are one of the important devices of particle accelerators, and are mainly used for restraining, accelerating and testing high-energy particles in devices. When the superconducting magnet is not cooled, the superconducting magnet is at room temperature and is represented as a conventional conductor; when cooled by cryogenic fluid, the temperature may be below-268 ℃, and thus reach a superconducting state, becoming a superconducting magnet and placed inside a thermostat with cryogenic fluid. The wall surface of the thermostat is at room temperature, and in order to maintain the low-temperature superconducting performance of the magnet, a composite material with good mechanical performance and low thermal conductivity at low temperature is used as a support member, and a superconducting magnet weighing several tons is supported on the wall of the thermostat, wherein one end of the support member is connected with the wall of the thermostat and is at room temperature, and the other end of the support member is connected with a superconducting magnet cooling pool and is at low temperature. The low-temperature mechanical property of the composite material support is closely related to the material, the design structure of the support and the low-temperature. The low-temperature mechanical property of the existing composite material support is tested by adopting a universal tensile machine with a low-temperature device, the test requirement of ultralow temperature of-195 ℃ cannot be met, the space is limited, and the tensile stroke is generally small. The utility model discloses can be used for combined material support piece at-195 ℃ long-time utmost point low temperature environment and the mechanical properties test of big tensile/compression stroke.
SUMMERY OF THE UTILITY MODEL
The utility model discloses develop a combined material support piece low temperature mechanical properties test platform to solve the test machine that has low temperature equipment at present and can not satisfy long-time, the utmost point low temperature test requirement under the-195 ℃ of temperature, and tensile stroke is generally less, can not satisfy jumbo size support piece's tensile/compression test's problem.
The utility model adopts the technical proposal that:
a low-temperature mechanical performance testing platform of a composite material support piece is characterized by comprising a low-temperature Dewar 11, wherein a fixing flange 5 is arranged at the bottom end of the low-temperature Dewar 11, a sealing flange 4 is arranged at the top end of the low-temperature Dewar 11, a supporting flange 6 is arranged in the low-temperature Dewar 11, the bottom of the supporting flange 6 is connected to the fixing flange 5 through a plurality of heat insulation supports 7, and the supporting flange 6 is connected with a flange at the bottom end of an inner container 15 of the low-temperature Dewar 11; a composite material supporting piece 9 is arranged in the inner container 15, the lower end of the composite material supporting piece 9 is installed on a boss of the supporting flange 6, the upper end of the composite material supporting piece 9 is connected with the lower end of a guide rod 12 positioned in the inner container 15, the upper end of the guide rod 12 is led out from the sealing flange 4 and is connected with a force generating device, and a liquid injection pipe 14 communicated with the inner container 15 is arranged on the top end of the low-temperature Dewar 11.
Further, the force generation device comprises a support truss 1, a servo electric cylinder 2 and a support plate 3, the support plate 3 is located on the support truss 1, the servo electric cylinder 2 is fixed between the support plate 3 and the support truss 1, and the servo electric cylinder 2 is connected with the upper end of a guide rod 12 through a connecting flange 8.
Further, the lower end of the guide rod 12 is connected with the composite material support 9 through a flange.
Further, the flange 8 is a loop flange and is arranged at the top end of the guide rod 12.
Further, the guide rod 12 and the servo electric cylinder 2 are connected by a movable sealing structure.
Furthermore, a normal temperature sealing positioning block 17 with a braising plate is assembled at the joint of the top end of the low-temperature Dewar 11 and the guide rod 12.
Further, the low-temperature Dewar 11 is a Dewar with a vacuum interlayer, and a space between the outer vacuum cylinder and the inner cylinder is vacuumized.
Furthermore, the outer surface of the inner cylinder body is wrapped with a plurality of layers of composite nylon mesh cloth and a single-layer silver aluminum film.
Furthermore, temperature detectors are arranged at the upper end and the lower end of the composite material supporting piece 9, and a heater is arranged at the upper end of the composite material supporting piece 9.
Further, the fixing flange 5 is connected with a support base 10 of a low-temperature dewar 11.
The utility model discloses a combined material support piece's low temperature mechanical properties test platform includes servo electronic jar, brace table and low temperature dewar. The servo electric cylinder is a power source for testing the low-temperature mechanical property of the composite material support piece; the support table provides connection support for low-temperature mechanical performance test of the composite material support; the low-temperature dewar provides a low-temperature environment for the test of the sample so as to meet the test requirements of samples with different sizes in the low-temperature environment. The whole size height of the low-temperature Dewar is 1366mm, the area occupied by the bottom is a circular area with the diameter of 150mm, and the main components from inside to outside comprise a composite material support piece, a bottom support, an inner cylinder body, an outer vacuum cylinder body and an outer vacuum cylinder body ear. The low-temperature Dewar is provided with an upper flange and a lower flange, the upper flange is provided with a liquid level meter interface of low-temperature liquid, a low-temperature fluid infusion interface, a temperature sensor wire interface, a safety valve and an exhaust valve interface, and the four interfaces are directly connected with the inner cylinder; the vacuum pump comprises an evacuation valve interface and a pressure transmitter interface, wherein the two interfaces are connected with the interlayer of the outer vacuum cylinder body. The lower flange is connected with the fixed bottom plate of the supporting platform.
The utility model discloses an adjustable servo electronic jar with speed of stroke is as the force source, exerts through the guide bar effect combined material support piece and draws pressure, sets for the test that the stroke realized different size combined material support piece through the regulation, realizes the loading of slow or pulsed/uninstallation power through adjusting afterburning speed.
Low temperature dewar for taking the interbedded dewar of vacuum, evacuation between outer vacuum barrel and the interior barrel, the surface parcel 30 layers of compound nylon screen cloth of interior barrel and individual layer silver degree aluminium film are as the heat-insulating material, for combined material support piece provides long-time stable-195 ℃ low temperature environment, the dewar bottom sets up combined material support piece fixed station, is connected to a supporting bench bottom plate.
The guide rod is connected with servo electronic jar and adopts portable seal structure of living.
The utility model has the advantages that:
the utility model discloses an adopt components of a whole that can function independently structure, convenient to detach and combined material support piece's installation, interior barrel can satisfy the test of the pressure mechanical properties that draws/of big stroke, and the long-time stable-195 ℃ low temperature environment of vacuum insulation measure guarantee to realize the long-range real-time display function of internal liquid level of inner tube, temperature and pressure.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a general schematic view of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a left side view of the present invention;
fig. 4 is a cross-sectional view of the low-temperature dewar of the present invention.
The device comprises a support truss 1, a servo electric cylinder 2, a support plate 3, a sealing flange 4, a fixing flange 5, a support flange 6, a heat insulation support 7, a flange 8, a composite material support 9, a support base 10, a low-temperature Dewar 11, a guide rod 12, a low-temperature Dewar 13, a liquid injection pipe 14, an inner container 15, an outer vacuum chamber 16 and a normal-temperature sealing positioning block 17.
Detailed Description
As shown in fig. 1-4, the platform for testing the low-temperature mechanical performance of the composite material support comprises a low-temperature dewar 11, wherein two ends of the low-temperature dewar 11 are respectively provided with a fixed flange 5 and a sealing flange 4, the fixed flange 5 is connected with a support base 10 of the low-temperature dewar 11, a composite material support 9 is installed on a support flange 6, the bottom of the support flange 6 is provided with 4 heat-insulating supports 7, the heat-insulating supports 7 are welded on the fixed flange 5, the support flange 6 is connected with a bottom end flange of an inner container 15 of the low-temperature dewar 11, and a boss of the support flange 6 is positioned in the inner container 15; a composite material supporting piece 9 is arranged in the inner container 15, the lower end of the composite material supporting piece 9 is arranged on a boss of a supporting flange 6, the upper end of the composite material supporting piece 9 is connected with the lower end of a guide rod 12 positioned in the inner container 15, the composite material supporting piece is led out of a sealing flange 4 of the low-temperature Dewar through the guide rod 12 and is connected with a force generating device, the force generating device comprises a supporting truss 1, a supporting plate 3 and a supporting plate 3, the supporting plate 3 is positioned on the supporting truss 1, a servo electric cylinder 2 with adjustable stroke and force is fixed on the supporting plate 3 and the supporting truss 1, the servo electric cylinder 2 with adjustable stroke and force is connected with the guide rod 12 through a connecting flange 8, the end part of the guide rod 12 is connected with a flange with a high-strength bolt, and the other end of the; the top end 13 of the low-temperature Dewar 11 is welded with a liquid injection pipe 14 which is communicated with the inner container 15, and the low-temperature fluid is injected into the inner container 15 of the low-temperature Dewar 11 through the liquid injection pipe 14.
The force source adopts a servo electric cylinder 2 with adjustable stroke and force, and the stretching or compression tests of different displacements and forces are realized by adjusting the stroke and setting the force. The low-temperature mechanical performance test of the composite material support 9 is realized by means of a low-temperature Dewar 11, an inner container 15 of the low-temperature Dewar 11 provides a low-temperature environment of-195 ℃, an outer vacuum chamber 16 of the low-temperature Dewar 11 provides an insulated environment for cooling and tension or pressure tests, and a support truss 1 provides mechanical support during long-time low-temperature tension or compression tests.
Temperature detectors are arranged at the upper end and the lower end of a composite material supporting piece 9 in the low-temperature Dewar 11, and a heater is arranged at the upper end of the supporting piece 9.
The top end of the guide rod 12 is provided with a loose flange.
And a normal temperature sealing positioning block 17 with a braising plate is assembled at the joint of the top end of the low-temperature Dewar 11 and the guide rod 12.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The low-temperature mechanical performance testing platform of the composite material support piece is characterized by comprising a low-temperature Dewar (11), wherein a fixing flange (5) is arranged at the bottom end of the low-temperature Dewar (11), a sealing flange (4) is arranged at the top end of the low-temperature Dewar (11), a supporting flange (6) is arranged in the low-temperature Dewar (11), the bottom of the supporting flange (6) is connected to the fixing flange (5) through a plurality of heat insulation supports (7), and the supporting flange (6) is in flange connection with the bottom end of an inner container (15) of the low-temperature Dewar (11); a composite material supporting piece (9) is arranged in the inner container (15), the lower end of the composite material supporting piece (9) is installed on a boss of the supporting flange (6), the upper end of the composite material supporting piece is connected with the lower end of a guide rod (12) located in the inner container (15), the upper end of the guide rod (12) is led out from the sealing flange (4) and is connected with a force generating device, and a liquid injection pipe (14) communicated with the inner container (15) is arranged on the top end of the low-temperature Dewar (11).
2. The cryogenic mechanical property test platform of composite material support piece according to claim 1, characterized in that the force generating device comprises a support truss (1), a servo electric cylinder (2) and a support plate (3), the support plate (3) is located on the support truss (1), the servo electric cylinder (2) is fixed between the support plate (3) and the support truss (1), and the servo electric cylinder (2) is connected with the upper end of the guide rod (12) through a connecting flange (8).
3. The platform for testing the cryogenic mechanical properties of a composite support according to claim 2, wherein the lower end of the guide rod (12) is connected to the composite support (9) by a flange.
4. The platform for testing the cryogenic mechanical properties of a composite material support according to claim 2, wherein the flange (8) is a loop flange and is arranged at the top end of the guide rod (12).
5. The platform for testing the cryogenic mechanical properties of a composite material support according to claim 2, wherein the guide rod (12) is connected with the servo electric cylinder (2) by a movable sealing structure.
6. The platform for testing the low-temperature mechanical properties of the composite material support part according to claim 1, wherein a normal-temperature sealing positioning block (17) with a braising plate is assembled at the joint of the top end of the low-temperature Dewar (11) and the guide rod (12).
7. The platform for testing cryogenic mechanical properties of a composite support according to claim 1, wherein the cryogenic dewar (11) is a dewar with a vacuum interlayer, and a vacuum is pumped between the outer vacuum cylinder and the inner cylinder.
8. The platform for testing the cryogenic mechanical properties of a composite support according to claim 7, wherein the outer surface of the inner cylinder body is wrapped with a plurality of layers of composite nylon mesh cloth and a single layer of silver aluminum thin film.
9. The cryogenic mechanical property test platform of a composite material support piece according to claim 1, wherein temperature detectors are arranged at the upper end and the lower end of the composite material support piece (9), and a heater is arranged at the upper end of the composite material support piece (9).
10. Cryogenic mechanical testing platform of the mechanical properties of composite supports according to claim 1, characterized in that the fixing flange (5) is connected to the support base (10) of the cryogenic dewar (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920338884.XU CN209979361U (en) | 2019-03-18 | 2019-03-18 | Low-temperature mechanical performance test platform for composite material support piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920338884.XU CN209979361U (en) | 2019-03-18 | 2019-03-18 | Low-temperature mechanical performance test platform for composite material support piece |
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| CN209979361U true CN209979361U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359001A (en) * | 2020-03-04 | 2021-09-07 | 中国科学院理化技术研究所 | Chip testing system |
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2019
- 2019-03-18 CN CN201920338884.XU patent/CN209979361U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359001A (en) * | 2020-03-04 | 2021-09-07 | 中国科学院理化技术研究所 | Chip testing system |
| CN113359001B (en) * | 2020-03-04 | 2022-07-22 | 中国科学院理化技术研究所 | Chip testing system |
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