CN111532416A - Modular rigid ceramic tile assembly - Google Patents
Modular rigid ceramic tile assembly Download PDFInfo
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- CN111532416A CN111532416A CN202010397214.2A CN202010397214A CN111532416A CN 111532416 A CN111532416 A CN 111532416A CN 202010397214 A CN202010397214 A CN 202010397214A CN 111532416 A CN111532416 A CN 111532416A
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- ceramic tile
- hole
- metal
- modular rigid
- bottom plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/40—Sound or heat insulation, e.g. using insulation blankets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/40—Sound or heat insulation, e.g. using insulation blankets
- B64C1/403—Arrangement of fasteners specially adapted therefor, e.g. of clips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
The application discloses a modular rigid ceramic tile assembly. Comprises a single ceramic tile preform and a fixing structure for integrating the single ceramic tile preform; the method specifically integrates a single ceramic tile prefabricated body on a fixed structure, realizes standardized and modularized assembly of the ceramic tile prefabricated body, and provides an expansion platform for realizing environmental parameter measurement; the ceramic tile is arranged on the metal base plate, and a strain isolation pad is arranged between the ceramic tile and the metal base plate and is used as a transition layer between the ceramic tile and the metal base plate to release strain of the two materials caused by different linear expansion coefficients; the hole site of metal bottom plate aligns with the locating hole one by one at the ring frame corner edge of metal framework, and reuse fixed inserted sheet to fix, and the dead lever of fixed inserted sheet inserts in corresponding hole site and the locating hole, further utilizes fastening screw to fix the connecting hole on the inserted sheet with metal framework rigid coupling, realizes the fixed effect of fixed inserted sheet, reduces the ceramic tile risk of droing.
Description
Technical Field
The present disclosure relates generally to the field of aircraft structural heat protection and insulation technologies, and in particular, to a modular rigid ceramic tile assembly.
Background
The rigid ceramic tile is used on the windward side of the space shuttle for the first time, the problems of heat prevention and heat insulation are separated, the rigid ceramic tile is a great innovation in the world space history, and the sequence of the hypersonic aerocraft using the ceramic heat prevention tile in a large scale is uncovered. The rigid ceramic tile adopted by the space shuttle solves the problems of quality, thermal expansion, connection, sealing and the like which cannot be solved by the metal thermal protection at that time, but has the problems of brittleness, water absorption, high maintenance cost and the like. From the 20 th century and the 80 th's to date, enhanced, heat-resistant, durable, upgraded ceramic tiles have been continuously introduced and applied to space shuttles and later hypersonic flight vehicles, but these upgrades have focused primarily on improvements in material properties, with no significant improvement in the assembly process, maintenance performance, and other capabilities of the rigid ceramic tiles.
Specifically, in the aspect of an assembly process, taking a rigid heat insulation tile (a ceramic tile for a space shuttle) as an example, the existing ceramic heat insulation tile scheme has no exception that a large number of ceramic tiles need to be adhered to the surface of an aircraft, and the design needs to be optimized according to the topology of the outer surface of the aircraft, and each ceramic tile cannot be greatly restricted due to the material property and the machinability, so that huge assembly workload for forming the heat insulation layer by building tens of thousands of heat insulation tiles is formed. The assembly of a large number of parts can lead to process stability problems, which in turn increases the risk of falling.
In the aspect of quick replacement, the ground finishing time between two launches considered to be ideal at the beginning of design of the space shuttle only needs 1 to 2 weeks, actually, due to a series of operations such as ground inspection and replacement of the heat-proof tile, the interval between two flight tasks is at least prolonged to 2 months, and the traditional ceramic tile installation is limited by the pasting mode and cannot meet the requirements of quick deployment, quick response and short launching interval of the future spacecraft.
In the aspect of fault location, because the ceramic tile is directly pasted on the surface of the cabin skin, if a temperature sensor in the cabin encounters data abnormality, the fault can only be located to a general region, resolution fineness cannot be further increased, and the ceramic tile cannot be directly located to a certain ceramic tile, so that extremely low maintenance efficiency is caused.
In the aspect of environmental perception, traditional ceramic tile only plays and prevents thermal-insulated effect, and the aircraft is equipped with temperature sensor at some key positions and is used for monitoring inside temperature, can't form the different sections of full arrow, three-dimensional temperature field that becomes more meticulous, and if sensor quantity is numerous, inside is walked the line complicacy moreover, has more restricted the fineness to full arrow temperature collection.
Therefore, the modularized rigid ceramic tile assembly is provided for solving the problems that the rigid ceramic tile assembly is large in quantity and easy to fall off, rapid deployment of a spacecraft in the future cannot be met, fault location is not accurate, maintenance efficiency is low, and the precision of full rocket temperature collection is affected.
Disclosure of Invention
In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a modular rigid ceramic tile assembly which realizes ceramic tile pre-processing and standardized assembly, reduces ceramic tile falling risk, enhances fault location capability, improves maintenance efficiency, provides an extended platform for realizing environmental parameter measurement, has a simple structure and is easy to realize.
In a first aspect, the present application provides a modular rigid ceramic tile assembly comprising: a single ceramic tile preform and a fixing structure for integrating the single ceramic tile preform;
the single ceramic tile preform comprises: the ceramic tile comprises a metal bottom plate and a ceramic tile arranged on the metal bottom plate; the cross section of the metal bottom plate is in a square structure, and hole sites are respectively arranged at four right angles of the metal bottom plate; the lower surface of the ceramic tile is provided with a strain isolation pad; the ceramic tile and the strain isolation pad are provided with arc-shaped hole position angles corresponding to the hole positions;
the fixing structure includes: a metal framework and a fixed inserting sheet; at least four ring frames are arranged on the metal framework; the edge of each ring frame is provided with four uniformly arranged positioning holes, and each positioning hole is adjacent to one corner of the corresponding ring frame; the four positioning holes are aligned with the four hole sites one by one; the lower surface of the fixed inserting piece is provided with a fixed rod which is sequentially inserted into the corresponding positioning hole and the hole site; the center of the fixing insertion piece is also provided with a connecting hole, and the connecting hole is connected with the metal framework through a fastening screw; the fixed inserting piece and the ceramic tile adjacent to the fixed inserting piece form a hole, and a ceramic tile blocking piece is arranged in the hole.
According to the technical scheme that this application embodiment provided, the lower surface of metal soleplate is provided with the sealing washer, just seted up on the sealing washer with the through-hole that the hole site corresponds the setting.
According to the technical scheme provided by the embodiment of the application, the fastening screw is sleeved with the washer.
According to the technical scheme provided by the embodiment of the application, the surface of the ceramic tile blocking piece is coated with silicon rubber.
According to the technical scheme provided by the embodiment of the application, the tile spacing belt is annularly arranged on the side wall of the ceramic tile blocking piece.
According to the technical scheme provided by the embodiment of the application, the cross section of the ceramic tile plug sheet is in a shape of a right-angle sector, a semicircle or a circle.
According to the technical scheme provided by the embodiment of the application, the ceramic tile is provided with the temperature sensor.
In summary, the present disclosure specifically discloses a specific structure of a modular rigid ceramic tile assembly. The method specifically integrates a single ceramic tile prefabricated body on a fixed structure, realizes standardized and modularized assembly of the ceramic tile prefabricated body, and provides an expansion platform for realizing environmental parameter measurement; the ceramic tile is arranged on a metal bottom plate for processing a single ceramic tile prefabricated body in advance, and the metal bottom plate is used as an aircraft skin and a back plate of the ceramic tile to provide a supporting function for the ceramic tile; a strain isolation pad is arranged between the ceramic tile and the metal bottom plate and is used as a transition layer between the ceramic tile and the metal bottom plate for releasing strain caused by different linear expansion coefficients of the two materials; the hole sites at the four right-angle positions of the metal base plate are aligned with the positioning holes at the edge positions of the ring frame of the metal framework one by one, then the fixing inserts are used for fixing, the fixing rods of the fixing inserts are inserted into the corresponding hole sites and the positioning holes, the fixing inserts with the appropriate number of fixing rods are selected according to actual needs, the connecting holes in the fixing inserts are further fixedly connected with the metal framework through fastening screws, the fixing effect of the fixing inserts is achieved, the falling risk of the ceramic tiles is reduced, and all the fixing inserts are controlled to apply the same tightening torque, so that each single ceramic tile prefabricated body is subjected to the same pressing force.
According to the technical scheme, the sealing ring is further arranged on the lower surface of the metal base plate, so that the metal base plate and the metal framework are buffered and sealed; and the sealing ring is provided with a through hole corresponding to the hole position for ensuring the normal fixation of the hole position.
This technical scheme furtherly is in order to prevent that fastening screw is not hard up, and the packing ring is established to the cover on fastening screw, and fastening screw's fastening effect is guaranteed to reinforcing fastening screw's frictional force.
According to the technical scheme, the ceramic tile blocking piece is further arranged at a hole formed between the fixing insertion piece and the ceramic tile adjacent to the fixing insertion piece and used for filling the hole smoothly, the shape of the ceramic tile blocking piece is selected according to actual needs, and the side wall of the ceramic tile blocking piece is coated with the inter-tile isolation belt, so that the ceramic tile blocking piece is prevented from wearing the side wall of the ceramic tile, and meanwhile, the filling effect of the ceramic tile blocking piece is improved; need scribble the silicon rubber on ceramic tile closure piece before the installation advances the hole, avoid ceramic tile closure piece to drop, when the thickness of ceramic tile closure piece is less than the height in hole, can fill the fibrofelt between ceramic tile closure piece and fixed inserted sheet, guarantee the roughness of hole department.
In the technical scheme, in order to further enhance the fault positioning capability, a temperature sensor is arranged on each ceramic tile, so that the fault position is accurately positioned, and the maintenance efficiency is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a modular rigid ceramic tile assembly.
Fig. 2 is a schematic structural view of a single ceramic tile preform.
Fig. 3 is a schematic structural view of the fixing insert.
Reference numbers in the figures: 1. a metal base plate; 2. a ceramic tile; 3. a strain isolation pad; 4. hole site; 5. a seal ring; 6. a metal skeleton; 7. positioning holes; 8. fixing the inserting sheet; 9. fastening screws; 10. a gasket; 11. connecting holes; 12. a hole; 13. a ceramic tile blocking sheet; 14. and a through hole.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
Referring to fig. 1 and 2, a schematic structural view of a first embodiment of a modular rigid ceramic tile assembly provided by the present application includes: a single ceramic tile preform and a fixing structure for integrating the single ceramic tile preform;
the single ceramic tile preform comprises: the ceramic tile comprises a metal bottom plate 1 and a ceramic tile 2 arranged on the metal bottom plate 1; the cross section of the metal bottom plate 1 is in a square structure, and hole sites 4 are respectively arranged at four right angles of the metal bottom plate; the lower surface of the ceramic tile 2 is provided with a strain isolation pad 3; the ceramic tile 2 and the strain isolation pad 3 are provided with arc-shaped hole position angles corresponding to the hole positions 4;
the fixing structure includes: a metal framework 6 and a fixed inserting sheet 8; at least four ring frames are arranged on the metal framework 6; the edge of each ring frame is provided with four uniformly arranged positioning holes 7, and each positioning hole 7 is arranged adjacent to one corner of the corresponding ring frame; the four positioning holes 7 and the four hole positions 4 are arranged in one-to-one alignment; the lower surface of the fixing insertion piece 8 is provided with a fixing rod which is sequentially inserted into the corresponding positioning hole 7 and the corresponding hole position 4; a connecting hole 11 is further formed in the center of the fixing insertion piece 8, and the connecting hole 11 is connected with the metal framework 6 through a fastening screw 9; the fixed inserting piece 8 and the ceramic tile 2 adjacent to the fixed inserting piece form a hole 12, and a ceramic tile blocking piece 13 is arranged in the hole 12.
In the embodiment, a single ceramic tile prefabricated body is integrated on a fixed structure, so that standardized and modularized assembly of the ceramic tile prefabricated body is realized, and an expansion platform is provided for realizing environmental parameter measurement;
the metal bottom plate 1 is used as an aircraft skin and a back plate of the ceramic tile 2 and provides a supporting function for the ceramic tile 2; the cross section of the fixing structure is in a square structure, and hole sites 4 are respectively arranged at four right angles of the fixing structure and are used for being installed on the fixing structure;
the ceramic tile 2 is arranged on the metal base plate 1 and used for machining a single ceramic tile prefabricated body in advance;
the strain isolation pad 3 is arranged on the lower surface of the ceramic tile 2, is positioned between the ceramic tile 2 and the metal base plate 1, is used as a transition layer between the ceramic tile 2 and the metal base plate 1, and is used for releasing strain of the two materials caused by different linear expansion coefficients; arc-shaped hole position angles arranged corresponding to the hole positions 4 are arranged on the ceramic tiles 2 and the strain isolation pads 3, and vacant positions for normal installation are reserved for the hole positions 4;
the metal framework 6 is used as a base of the fixing structure, at least four ring frames are arranged on the metal framework 6, four positioning holes 7 which are uniformly arranged are formed in the edge of each ring frame, and each positioning hole 7 is arranged adjacent to one corner of the corresponding ring frame and used for installing a single ceramic tile prefabricated body on the metal framework 6;
as shown in fig. 3, the fixing insertion sheet 8 is used for fixing the single ceramic tile preform on the metal framework 6, the fixing rods on the lower surface of the fixing insertion sheet are sequentially inserted into the corresponding positioning holes 7 and the corresponding hole sites 4, so as to fix the single ceramic tile preform, and the selection of the fixing insertion sheet 8 can be selected according to the number of the fixing rods required in practice;
the connecting hole 11 is arranged at the center of the fixing insertion piece 8 and is connected with the metal framework 6 through a fastening screw 9, so that the fixing insertion piece 8 is further fixed, and the falling risk of the ceramic tile is reduced; controlling all the fixing insertion sheets 8 to apply the same tightening torque so that each single ceramic tile prefabricated body is subjected to the same pressing force;
ceramic tile closure piece 13 sets up fixed inserted sheet 8 and adjacent rather than ceramic tile 2 forms in the hole 12 for fill hole 12, guarantee the roughness of this subassembly, and the cross sectional shape of ceramic tile closure piece 13 can be selected according to actual need, optionally, for example for right angle fan-shaped, semi-circular or circular.
In any preferred embodiment, a sealing ring 5 is disposed on the lower surface of the metal base plate 1, and a through hole 14 corresponding to the hole 4 is formed in the sealing ring 5.
In this embodiment, the sealing ring 5 is disposed on the lower surface of the metal base plate 1, and is provided with a through hole 14 disposed corresponding to the hole 4, and the sealing ring 5 has buffering and sealing effects on the space between the metal base plate 1 and the metal framework 6; and the through holes 14 are used to ensure proper fixation of the holes 4.
In any preferred embodiment, the fastening screw 9 is sleeved with a washer 10.
In this embodiment, the washer 10 is sleeved on the fastening screw 9, so as to enhance the friction force of the fastening screw, prevent the fastening screw from loosening and ensure the fastening effect of the fastening screw.
In any preferred embodiment, the surface of the ceramic tile 13 is coated with silicone rubber.
In this embodiment, the silicone rubber covers the surface of the ceramic tile 13 to prevent the ceramic tile 13 from falling off from the hole 12.
In any preferred embodiment, the side wall of the ceramic tile 13 is surrounded by a tile spacing strip.
In this embodiment, the distance zone between tiles is annularly disposed on the side wall of the ceramic tile blocking sheet 13, so as to prevent the ceramic tile blocking sheet 13 from wearing the side wall of the ceramic tile 2 when being installed, and to improve the compactness of the ceramic tile blocking sheet filled in the hole 12.
In any preferred embodiment, a temperature sensor is provided on the ceramic tile 2.
In the embodiment, the temperature sensor is arranged on the ceramic tile 2, when data is abnormal, the fault position is accurately positioned, and the single ceramic tile prefabricated body and the fixed structure are in a detachable connection mode, so that the fault ceramic tile is more effectively replaced, and the maintenance efficiency is improved; the temperature sensor is of the type, for example, a k-type thermocouple.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A modular rigid ceramic tile assembly, comprising: a single ceramic tile preform and a fixing structure for integrating the single ceramic tile preform;
the single ceramic tile preform comprises: the ceramic tile comprises a metal bottom plate (1) and ceramic tiles (2) arranged on the metal bottom plate (1); the cross section of the metal bottom plate (1) is in a square structure, and hole sites (4) are respectively arranged at four right angles of the metal bottom plate; the lower surface of the ceramic tile (2) is provided with a strain isolation pad (3); the ceramic tile (2) and the strain isolation pad (3) are provided with arc-shaped hole position angles corresponding to the hole positions (4);
the fixing structure includes: a metal framework (6) and a fixed inserting sheet (8); at least four ring frames are arranged on the metal framework (6); the edge of each ring frame is provided with four uniformly arranged positioning holes (7), and each positioning hole (7) is arranged adjacent to one corner of the corresponding ring frame; the four positioning holes (7) and the four hole positions (4) are arranged in one-to-one alignment; the lower surface of the fixing insertion piece (8) is provided with a fixing rod which is sequentially inserted into the corresponding positioning hole (7) and the hole site (4); a connecting hole (11) is further formed in the center of the fixing insertion piece (8), and the connecting hole (11) is connected with the metal framework (6) through a fastening screw (9); the fixed inserting piece (8) is adjacent to the ceramic tile (2) to form a hole (12), and a ceramic tile blocking piece (13) is arranged in the hole (12).
2. The modular rigid ceramic tile assembly according to claim 1, characterized in that a sealing ring (5) is provided on the lower surface of said metal base plate (1), and said sealing ring (5) is provided with a through hole (14) corresponding to said hole site (4).
3. A modular rigid ceramic tile assembly according to claim 1, characterized in that said fastening screws (9) are sleeved with washers (10).
4. A modular rigid ceramic tile assembly according to claim 1, wherein the surface of the ceramic tile patch (13) is coated with silicone rubber.
5. A modular rigid ceramic tile assembly according to claim 1, characterized in that the side wall of said ceramic tile patch (13) is annularly provided with tile distance strips.
6. A modular rigid ceramic tile assembly according to claim 1, characterized in that said ceramic tile patch (13) has a cross-sectional shape of a right-angled sector, a semi-circle or a circle.
7. A modular rigid ceramic tile assembly according to claim 1, characterized in that said ceramic tiles (2) are provided with temperature sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397214.2A CN111532416B (en) | 2020-05-12 | 2020-05-12 | Modular rigid ceramic tile assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397214.2A CN111532416B (en) | 2020-05-12 | 2020-05-12 | Modular rigid ceramic tile assembly |
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| CN111532416A true CN111532416A (en) | 2020-08-14 |
| CN111532416B CN111532416B (en) | 2021-06-08 |
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| US3945879A (en) * | 1974-08-30 | 1976-03-23 | Nasa | Apparatus for positioning modular components on a vertical or overhead surface |
| CN101791880A (en) * | 2009-12-30 | 2010-08-04 | 哈尔滨工业大学 | Cover plate formed by combining metal honeycomb structure and ceramics used for thermal protection system |
| US8147943B1 (en) * | 2009-03-26 | 2012-04-03 | The United States Of America As Represented By The Secretary Of The Air Force | Replaceable impact resistant thermal protection system |
| CN207921593U (en) * | 2018-02-02 | 2018-09-28 | 江苏派恩新型材料有限公司 | A kind of rigid thermal insulation tile of ceramics |
| CN109927943A (en) * | 2019-04-04 | 2019-06-25 | 北京卫星制造厂有限公司 | Recoverable airship solar heat protection and carrying integral structure |
| CN110183239A (en) * | 2019-04-22 | 2019-08-30 | 湖南远辉复合材料有限公司 | A kind of combined type preparation method of ceramic matric composite lattice structure |
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2020
- 2020-05-12 CN CN202010397214.2A patent/CN111532416B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3945879A (en) * | 1974-08-30 | 1976-03-23 | Nasa | Apparatus for positioning modular components on a vertical or overhead surface |
| US8147943B1 (en) * | 2009-03-26 | 2012-04-03 | The United States Of America As Represented By The Secretary Of The Air Force | Replaceable impact resistant thermal protection system |
| CN101791880A (en) * | 2009-12-30 | 2010-08-04 | 哈尔滨工业大学 | Cover plate formed by combining metal honeycomb structure and ceramics used for thermal protection system |
| CN207921593U (en) * | 2018-02-02 | 2018-09-28 | 江苏派恩新型材料有限公司 | A kind of rigid thermal insulation tile of ceramics |
| CN109927943A (en) * | 2019-04-04 | 2019-06-25 | 北京卫星制造厂有限公司 | Recoverable airship solar heat protection and carrying integral structure |
| CN110183239A (en) * | 2019-04-22 | 2019-08-30 | 湖南远辉复合材料有限公司 | A kind of combined type preparation method of ceramic matric composite lattice structure |
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| Title |
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| 鲁芹等: "高超声速飞行器陶瓷复合材料与热结构技术研究进展", 《硅酸盐学报》 * |
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