Reusable heat-proof outsole for rocket

Abstract

The reusable rocket heatproof outsole comprises one-eighth heatproof plate bodies, the one-eighth heatproof plate bodies are spliced end to end to form an annular structure, and the one-eighth heatproof plate bodies comprise a first heatproof bottom plate, a second heatproof bottom plate, a third heatproof bottom plate and a fourth heatproof bottom plate. The one-eighth-circle heat-proof bottom plates are connected in a butt joint mode, the butt joint faces are connected through the heat-proof base plates, and it is guaranteed that disassembly and assembly are convenient. According to the engine peripheral edge heat-proof plate, the partitioning design is adopted, it is guaranteed that the heat-proof plate can be disassembled and reinstalled, the lap joint design is adopted between the heat-proof bottom plates, it is guaranteed that the heat release bottom plates are connected reliably, and heat cannot be lost to the inner structure of a rocket. The step hole is formed in the heat-proof base plate, the heat-proof base plate is installed on the rocket body through the fastening screw, the heat-proof filling block is installed above the fastening screw, the heat-proof filling block can effectively play a heat-proof role, high-temperature-resistant fastening screws do not need to be used, and the cost is effectively reduced.

Description

A reusable rocket heat shield Technical Field

[0001] This utility model relates to the field of rocket heat protection bottom technology, and in particular to a reusable rocket heat protection bottom. Background Technology

[0002] As humanity's exploration of space continues to deepen, the demand for space transportation capabilities is also increasing. Traditional rockets are single-use, and each launch requires the manufacture of a brand new rocket, which is very costly. Reusable rockets, on the other hand, can be recovered after completing a mission and reused after inspection and maintenance, which can significantly reduce the cost of each launch.

[0003] During launch, rockets face extreme heat flux and temperatures, as well as prolonged exposure to extreme aerodynamic heating environments, with the thermal shield at the rocket's base experiencing the highest temperatures. Existing thermal shields use disposable ablation insulation materials, requiring replacement after each flight, which is extremely costly.

[0004] Multiple engines are mounted in the center of the heat shield. To ensure reusability, the heat shield needs to be disassembled and reassembled after the engines are installed. Since the rocket's internal structure cannot withstand the high-temperature environment, the heat shield installation area must be sealed and insulated after installation to prevent high heat from flowing into the rocket's internal structure. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reusable rocket heat shield that meets the requirements of exceeding heat flow and ultra-high temperature during rocket launch, as well as the extreme aerodynamic heating environment of high heating capacity and prolonged exposure. It is capable of withstanding temperatures above 1600℃ for extended periods and features quick assembly and disassembly, enabling the reusability of the rocket's heat shield.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A reusable rocket heat shield includes an eighth-section heat shield plate, which is assembled end to end to form a ring structure. The eighth-section heat shield plate includes heat shield plate one, heat shield plate two, heat shield plate three, and heat shield plate four. Heat shield plate one, heat shield plate two, heat shield plate three, and heat shield plate four are spliced ​​end to end and connected to the rocket body structure by fastening screws. A sealing structure is provided at the joint of two adjacent eighth-section heat shield plates.

[0008] Preferably, the sealing structure includes a heat-insulating pad, and a settling groove is provided at the joint of one-eighth of the heat-insulating plate body. The fastening screws are located at the bottom of the settling groove, and the heat-insulating pad is located in the settling groove.

[0009] Preferably, the cross-sectional shape of the joint of the heat-resistant base plate one, heat-resistant base plate two, heat-resistant base plate three and heat-resistant base plate four is Z-shaped.

[0010] Preferably, the lap joints of the heat-resistant base plate one, heat-resistant base plate two, heat-resistant base plate three, heat-resistant base plate four and heat-resistant pad are all provided with a filling layer.

[0011] Preferably, the fastening screws are installed in the stepped holes of the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3 and heat-resistant base plate 4, and heat-resistant filler blocks are provided at the openings of the holes. A gap of 0.5 to 1.5 mm is left between the heat-resistant filler blocks and the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3 and heat-resistant base plate 4, and the gap is filled by a filler layer.

[0012] Preferably, the heat-resistant base plate one, heat-resistant base plate two, heat-resistant base plate three, heat-resistant base plate four, heat-resistant pad and heat-resistant filler block are made of the same material and have a temperature resistance of ≥1600℃.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Each of the eighth-circle heat-resistant base plates in this product is connected by a butt joint, and the butt joint surfaces are connected by heat-resistant pads, ensuring easy assembly and disassembly.

[0015] The heat shield around the engine in this practical application adopts a segmented design to ensure that it can be disassembled and reinstalled. Each heat shield base plate adopts an overlapping design to ensure that the connection between the heat-dissipating base plates is reliable and that heat will not be lost to the internal structure of the rocket.

[0016] The gap between the heat-resistant base plates is 0.5 to 1.5 mm to ensure that the heat-resistant plates will not squeeze adjacent heat-resistant plates when they expand due to high heat flow. The gaps are filled with high-temperature resistant silicone rubber, which is easy to deform and not easily crushed after expansion due to temperature rise.

[0017] This practical heat-resistant pad has stepped holes and is installed on the rocket body using fastening screws. A heat-resistant filler block is installed above the fastening screws. The heat-resistant filler block can effectively provide heat protection, eliminating the need for high-temperature resistant fastening screws and reducing costs. Attached Figure Description

[0018] To illustrate the technical solutions in the embodiments of this utility model or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 is a schematic diagram of the splicing of two one-eighth heat-resistant panels in this application.

[0020] Figure 2 is a schematic diagram of the connection between two one-eighth heat-resistant plates in this utility model;

[0021] Figure 3 is a schematic diagram of the connection of each heat-resistant base plate in this utility model.

[0022] In the diagram: 1. Heat-resistant base plate 1; 2. Heat-resistant base plate 2; 3. Heat-resistant base plate 3; 4. Heat-resistant base plate 4; 5. Heat-resistant filler block; 6. Heat-resistant pad; 7. Filler layer; 8. Fastening screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Referring to Figures 1-3, a reusable rocket heat shield includes an eighth-section heat shield body. The eighth-section heat shield body is assembled end to end to form a ring structure. The eighth-section heat shield body includes heat shield base plate 1, heat shield base plate 2, heat shield base plate 3, and heat shield base plate 4. The heat shield base plate 1, heat shield base plate 2, heat shield base plate 3, and heat shield base plate 4 are spliced ​​end to end and connected to the rocket body structure by fastening screws 8. A sealing structure is provided at the joint of two adjacent eighth-section heat shield bodies.

[0025] In this embodiment, the sealing structure includes a heat-insulating pad 6, and a settling groove is provided at the joint of one-eighth of the heat-insulating plate body. The fastening screw 8 is located at the bottom of the settling groove, and the heat-insulating pad 6 is located in the settling groove.

[0026] In this implementation plan, the cross-sectional shape of the joint of heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3 and heat-resistant base plate 4 is Z-shaped, and the overlap width is 5-20mm.

[0027] In this implementation plan, the lap joints of heat-insulating base plate 1, heat-insulating base plate 2, heat-insulating base plate 3, heat-insulating base plate 4 and heat-insulating pad 6 are all provided with a filling layer 7.

[0028] In this embodiment, the fastening screws 8 are installed in the stepped holes of the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4, and heat-resistant filler blocks 5 are provided at the openings of the holes. A gap of 0.5 to 1.5 mm is left between the heat-resistant filler blocks 5 and the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4. This gap is filled by the filler layer 7, which is made of high-temperature resistant silicone rubber.

[0029] In this implementation plan, the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, heat-resistant base plate 4, heat-resistant pad 6, and heat-resistant filler block 5 are made of the same material and have a temperature resistance of ≥1600℃.

[0030] As can be seen from the above embodiments, each of the eighth heat-resistant plates in this utility model adopts a butt joint design, which can ensure the individual removal of any one of the eighth heat-resistant plates. Moreover, the butt joint area adopts a recessed design, and the screws directly pass through the heat-resistant plate and connect to the arrow body structure. A heat-resistant pad is then glued on top, avoiding the need for additional protection of the screws. Furthermore, ordinary screws can be used, without the need to use expensive high-temperature resistant screws.

[0031] As can be seen from the above embodiments, the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4 are connected by an overlapping joint, which can effectively provide heat protection and prevent heat from being directly transmitted to the inside of the rocket body through the gaps due to inadequate sealing.

[0032] As can be seen from the above embodiments, the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4 are spaced 0.5 to 1.5 mm apart. This ensures that the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4 will not be squeezed when subjected to high temperature expansion, and also ensures that the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4 have local movement space due to the swing of the engine.

[0033] As can be seen from the above embodiments, heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4 have stepped holes opened at appropriate positions. Screws pass through heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4. The top of the screw is filled with heat-resistant filler block 5, which can effectively protect the screw from heat and avoid the use of expensive high-temperature resistant screws. A gap of 0.5 to 1.5 mm is left between the heat-resistant filler block 5 and the heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4, ensuring that the heat-resistant filler block 5 can be quickly removed and the screws can be removed, thus ensuring the quick assembly and disassembly of heat-resistant base plate 1, heat-resistant base plate 2, heat-resistant base plate 3, and heat-resistant base plate 4.

[0034] As can be seen from the above embodiments, the heat shield 6, the heat shield filling block 5, and the heat shield base plate 1, heat shield base plate 2, heat shield base plate 3, and heat shield base plate 4 can withstand temperatures ≥1600℃, which can ensure the effective protection of the rocket body by the heat shield base plate during rocket flight.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reusable rocket heat shield, comprising one-eighth heat shield panels, wherein the one-eighth heat shield panels are assembled end-to-end to form a ring structure, characterized in that... The eighth heat-resistant plate body includes heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3) and heat-resistant base plate four (4). The heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3) and heat-resistant base plate four (4) are spliced ​​end to end and connected to the arrow body structure by fastening screws (8). A sealing structure is provided at the joint of two adjacent eighth heat-resistant plates.

2. The reusable rocket heat shield according to claim 1, characterized in that, The sealing structure includes a heat-insulating pad (6), and a settling groove is provided at the joint of one-eighth of the heat-insulating plate body. The fastening screw (8) is located at the bottom of the settling groove, and the heat-insulating pad (6) is located in the settling groove.

3. The reusable rocket heat shield according to claim 2, characterized in that, The cross-sectional shape of the joint of the heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3) and heat-resistant base plate four (4) is Z-shaped.

4. A reusable rocket heat shield as described in claim 3, characterized in that, The overlapping seams of the heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3), heat-resistant base plate four (4) and heat-resistant pad (6) are all provided with a filling layer (7).

5. A reusable rocket heat shield as described in claim 4, characterized in that, The fastening screw (8) is installed in the stepped holes of the heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3) and heat-resistant base plate four (4), and a heat-resistant filling block (5) is provided at the opening of the hole. A gap of 0.5 to 1.5 mm is left between the heat-resistant filling block (5) and the heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3) and heat-resistant base plate four (4), and the gap is filled by the filling layer (7).

6. A reusable rocket heat shield as described in claim 5, characterized in that, The heat-resistant base plate one (1), heat-resistant base plate two (2), heat-resistant base plate three (3), heat-resistant base plate four (4), heat-resistant pad (6), and heat-resistant filler block (5) are made of the same material and have a temperature resistance of ≥1600℃.

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