CN109580694B - Hot protective structure test fixture - Google Patents
Hot protective structure test fixture Download PDFInfo
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- CN109580694B CN109580694B CN201811449487.6A CN201811449487A CN109580694B CN 109580694 B CN109580694 B CN 109580694B CN 201811449487 A CN201811449487 A CN 201811449487A CN 109580694 B CN109580694 B CN 109580694B
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- test fixture
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- cover plate
- thermal protection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
The application belongs to the field of structural performance testing, and particularly relates to a thermal protection structure test fixture. The method comprises the following steps: anchor clamps platform (1), guide plate (2) and apron (3). A first groove (11) and a second groove (12) which are communicated with each other are formed in the clamp platform (1), the depth of the first groove (11) is larger than that of the second groove (12), and a liquid inlet hole (13) is formed in one end of the first groove (11); the guide plate (2) is arranged in the second groove (12), a third groove (21) is formed in the guide plate (2), and one end of the third groove (21) is communicated with the first groove (11); the cover plate (3) is arranged on the clamp platform (1) and forms a liquid containing cavity with the first groove (11). The hot protective structure test fixture can solve the problem of testing a hot-current coupling hot protective structure in the prior art, and is simple in structure and high in reliability.
Description
Technical Field
The application belongs to the field of structural performance testing, and particularly relates to a thermal protection structure test fixture.
Background
The serious pneumatic heating brings severe threat to the body structure and system of the high-Mach aircraft, and the success or failure of the development of the thermal protection structure directly determines the success or failure of the high-Mach aircraft.
At present, the thermal protection structures applied in engineering mainly comprise ceramic cover plates, metal honeycombs, ceramic tiles, flexible felt and the like, the structures are derived from the service environment of the aerospace craft, high temperature and large heat flow are used as design input, light weight and heat prevention effect are used as design targets, short-time high-temperature and large heat flow protection and temperature impact are paid much attention to, and the factors such as structure service life, oxidation resistance, vibration resistance level and the like are not considered in cooperation with the thermal protection effect, so that the mechanical property of the thermal protection structures is poor, the environmental adaptability is not strong, the space occupation is serious, the maintenance and repair are difficult, the structure service life is short, and the service range is very limited.
Compared with an aerospace thermal protection structure, the aerospace thermal protection structure has lower service temperature and heat flux density, but the comprehensive service environment of the aerospace thermal protection structure is more severe due to the additional service conditions such as bearing, vibration and oxidation, and the requirement of the aerospace thermal protection service environment cannot be met by directly using the aerospace thermal protection technology. The semi-active thermal protection structure manufactured based on the metal structure is an effective technical solution, but the structure is complex in configuration, fluid is coupled with a thermal environment, so that the test verification and examination are difficult, and the design of a special test examination clamp for realizing thermal-current coupling examination is very urgent.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The utility model aims at providing a hot protective structure test fixture to solve at least one problem that prior art exists.
The technical scheme of the application is as follows:
a thermally protected structural test fixture, comprising:
the clamp comprises a clamp platform, wherein a first groove and a second groove which are communicated with each other are arranged on the clamp platform, the depth of the first groove is greater than that of the second groove, and a liquid inlet hole is formed in one end of the first groove;
the guide plate is arranged in the second groove, a third groove is formed in the guide plate, and one end of the third groove is communicated with the first groove;
the cover plate is installed on the clamp platform, and a liquid containing cavity is formed between the cover plate and the first groove.
Optionally, the second groove is stepped, the depth close to one side of the first groove is larger than the depth far away from one side of the first groove, and the guide plate is stepped matched with the second groove.
Optionally, the cross section of the third groove is a triangle arranged periodically.
Optionally, the side length of the triangle is more than or equal to 3mm and less than or equal to 15 mm.
Optionally, the cross section of the third groove is in a semicircular shape arranged periodically.
Optionally, the cover plate is provided with a mounting hole, the clamp platform is provided with a threaded hole matched with the mounting hole, and the mounting hole and the threaded hole are fixed through a bolt.
Optionally, a sealing gasket is mounted between the cover plate and the clamp platform.
Optionally, the method further comprises: fastener and anchorage bar, fastener and anchorage bar cover are established the one end in feed liquor hole is kept away from to the anchor clamps platform is used for pressing from both sides tightly the anchor clamps platform.
Optionally, the fastener is U-shaped, two sidewalls are respectively provided with corresponding rectangular mounting holes, and two ends of the fastening rod are mounted in the rectangular mounting holes.
Optionally, a plurality of fixing holes are uniformly formed in the fastening rod, and a bolt is installed in each fixing hole and used for fixing the cover plate.
The invention has at least the following beneficial technical effects:
the hot protective structure test fixture can solve the problem of testing a hot-current coupling hot protective structure in the prior art, and is simple in structure and high in reliability.
Drawings
FIG. 1 is a schematic view of a thermal protection structure test fixture according to one embodiment of the present application;
FIG. 2 is a schematic view of a fixture platform of a thermal protection structure test fixture according to one embodiment of the present application;
FIG. 3 is a schematic view of a deflector of a thermal protection structure test fixture according to one embodiment of the present application;
FIG. 4 is an enlarged view at A of FIG. 3;
FIG. 5 is a schematic view of a cover plate of a thermal protection structure test fixture according to one embodiment of the present application;
FIG. 6 is a fastener schematic of a thermal protection structure test fixture according to one embodiment of the present application;
FIG. 7 is a schematic view of a fastening rod of a thermal protection structure test fixture according to one embodiment of the present application;
wherein:
1-a clamp platform; 11-a first groove; 12-a second groove; 13-liquid inlet hole; 2-a flow guide plate; 21-a third groove; 3-cover plate; 31-mounting holes; 4-a fastener; 41-rectangular mounting holes; 5-fastening the rod; 51-fixed orifices.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 7.
The application provides a hot protective structure test fixture can include: clamp platform 1, guide plate 2 and apron 3.
Specifically, a first groove 11 and a second groove 12 which are communicated with each other are arranged on the clamp platform 1, the depth of the first groove 11 is greater than that of the second groove 12, and a liquid inlet hole 13 is arranged at one end of the first groove 11; the guide plate 2 is arranged in the second groove 12, a third groove 21 is arranged on the guide plate 2, and one end of the third groove 21 is communicated with the first groove 11; the cover plate 3 is fastened on the clamp platform 1, and forms a liquid containing cavity with the first groove 11.
Further, in an embodiment of this application, second recess 12 is the stairstepping, and is close to the degree of depth of first recess 11 one side and is greater than the degree of depth of keeping away from first recess 11 one side, and guide plate 2 is the stairstepping with second recess 12 looks adaptation.
In one embodiment of the present application, the third grooves 21 on the baffle 2 may be arranged as triangles with periodically arranged cross sections, and the side length L of the triangle is 3mm ≦ L ≦ 15 mm.
In another embodiment of the present application, the third grooves 21 on the baffle 2 may also be arranged in a semicircular shape with a cross section arranged periodically.
In the hot protective structure test fixture of this application, set up mounting hole 31 on apron 3, be provided with the screw hole with mounting hole 31 looks adaptation on the anchor clamps platform 1, pass through the bolt fastening between mounting hole 31 and the screw hole, realize apron 3 lock joint on anchor clamps platform 1. It will be appreciated that a sealing gasket is mounted between the cover plate 3 and the clamp platform 1.
Further, the thermal protection structure test fixture in the present application may further include: fastener 4 and anchorage bar 5, fastener 4 and anchorage bar 5 cover are established in the one end of keeping away from liquid inlet hole 13 of anchor clamps platform 1 for press from both sides tight anchor clamps platform 1. In this embodiment, the fastening member 4 is U-shaped, two side walls are respectively provided with corresponding rectangular mounting holes 41, and two ends of the fastening rod 5 are mounted in the rectangular mounting holes 41 and combined with the fastening member 4 to form a fastening ring. And, a plurality of fixing holes 51 are uniformly provided on the fastening rod 5, and a bolt is installed in each fixing hole 51 for fixing the cover plate 3.
The hot protective structure test fixture can solve the problem of testing a hot-current coupling hot protective structure in the prior art, and is simple in structure and high in reliability.
The above description is only for the specific embodiments of the present application, but the scope of the present application 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 application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. A thermal protection structure test fixture, comprising:
the clamp comprises a clamp platform (1), wherein a first groove (11) and a second groove (12) which are communicated with each other are formed in the clamp platform (1), the depth of the first groove (11) is larger than that of the second groove (12), and a liquid inlet hole (13) is formed in one end of the first groove (11);
the guide plate (2) is installed in the second groove (12), a third groove (21) is formed in the guide plate (2), the cross section of the third groove (21) is in a triangular shape or a semicircular shape which are periodically arranged, and one end of the third groove (21) is communicated with the first groove (11);
the cover plate (3) is mounted on the clamp platform (1), a liquid containing cavity is formed between the cover plate (3) and the first groove (11), a mounting hole (31) is formed in the cover plate (3), a threaded hole matched with the mounting hole (31) is formed in the clamp platform (1), and the mounting hole (31) and the threaded hole are fixed through a bolt;
further comprising: the clamp platform comprises a fastening piece (4) and a fastening rod (5), wherein the fastening piece (4) and the fastening rod (5) are sleeved at one end, far away from the liquid inlet hole (13), of the clamp platform (1) and are used for clamping the clamp platform (1);
the fastening piece (4) is U-shaped, two side walls are respectively provided with corresponding rectangular mounting holes (41), and two ends of the fastening rod (5) are mounted in the rectangular mounting holes (41);
a plurality of fixing holes (51) are uniformly formed in the fastening rod (5), and a bolt is installed in each fixing hole (51) and used for fixing the cover plate (3).
2. The thermal protection structure test fixture according to claim 1, wherein the second groove (12) is stepped, and the depth of the side close to the first groove (11) is greater than the depth of the side far from the first groove (11), and the deflector (2) is stepped to match the second groove (12).
3. The thermal protection structure test fixture of claim 1, wherein the triangle has a side length of 3mm ≦ L ≦ 15 mm.
4. The thermal protection structure test fixture according to claim 1, characterized in that a sealing gasket is mounted between the cover plate (3) and the fixture platform (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811449487.6A CN109580694B (en) | 2018-11-30 | 2018-11-30 | Hot protective structure test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811449487.6A CN109580694B (en) | 2018-11-30 | 2018-11-30 | Hot protective structure test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN109580694A CN109580694A (en) | 2019-04-05 |
| CN109580694B true CN109580694B (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811449487.6A Active CN109580694B (en) | 2018-11-30 | 2018-11-30 | Hot protective structure test fixture |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112098127A (en) * | 2020-09-08 | 2020-12-18 | 山东工业陶瓷研究设计院有限公司 | Assembly fixture that area detected |
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| SU513295A1 (en) * | 1974-06-17 | 1976-05-05 | Одесский ордена Трудового Красного Знамени политехнический институт | Cryochamber to Fatigue Testing Machine |
| JPS586330A (en) * | 1981-07-03 | 1983-01-13 | Hitachi Heating Appliance Co Ltd | Heating cooker |
| CN101586475A (en) * | 2008-12-23 | 2009-11-25 | 张金山 | Clustered shunt type thermal protection for turbine rotor blade of aeroengine |
| CN201926633U (en) * | 2010-11-19 | 2011-08-10 | 东华大学 | Novel thermal protective performance testing and evaluating device of thermal protective equipment |
| CN203443426U (en) * | 2013-08-15 | 2014-02-19 | 甘肃蓝科石化高新装备股份有限公司 | Super-high temperature gas cooler |
| CN104776973A (en) * | 2015-03-24 | 2015-07-15 | 中国科学院力学研究所 | Cooling device applied to high Mach number nozzle throat and construction method of cooling device |
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| CN108423154A (en) * | 2018-03-13 | 2018-08-21 | 中国科学技术大学 | Hypersonic aircraft leading edge thermal protection method based on gradient porous material |
| CN108767366A (en) * | 2018-06-01 | 2018-11-06 | 辽宁比科新能源股份有限公司 | A kind of air-cooled heat dissipation structure of power battery pack |
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2018
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| SU513295A1 (en) * | 1974-06-17 | 1976-05-05 | Одесский ордена Трудового Красного Знамени политехнический институт | Cryochamber to Fatigue Testing Machine |
| JPS586330A (en) * | 1981-07-03 | 1983-01-13 | Hitachi Heating Appliance Co Ltd | Heating cooker |
| CN101586475A (en) * | 2008-12-23 | 2009-11-25 | 张金山 | Clustered shunt type thermal protection for turbine rotor blade of aeroengine |
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| CN203443426U (en) * | 2013-08-15 | 2014-02-19 | 甘肃蓝科石化高新装备股份有限公司 | Super-high temperature gas cooler |
| CN104776973A (en) * | 2015-03-24 | 2015-07-15 | 中国科学院力学研究所 | Cooling device applied to high Mach number nozzle throat and construction method of cooling device |
| CN105548239A (en) * | 2016-02-02 | 2016-05-04 | 通标标准技术服务有限公司安吉分公司 | Thermal protection performance tester |
| CN108423154A (en) * | 2018-03-13 | 2018-08-21 | 中国科学技术大学 | Hypersonic aircraft leading edge thermal protection method based on gradient porous material |
| CN108767366A (en) * | 2018-06-01 | 2018-11-06 | 辽宁比科新能源股份有限公司 | A kind of air-cooled heat dissipation structure of power battery pack |
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| CN109580694A (en) | 2019-04-05 |
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