Launch platform structure based on splice of stopper and positioning method thereof

Abstract

The application provides a launching platform structure based on a jointing stop and a positioning method thereof, comprising a launching platform main body, the launching platform main body comprising a plurality of platform bodies which are sequentially jointed; two adjacent platform bodies are positioned through a jointing stop and are fixedly connected through a fastener, the jointing stop comprising a male jointing stop arranged on one of the two adjacent platform bodies and a female jointing stop arranged on the other, the shapes of the male jointing stop and the female jointing stop are matched with each other. The large-size launching platform is decomposed into a plurality of small assemblies for transportation and hoisting, thereby effectively reducing the difficulty of transportation and hoisting construction; the two adjacent platform bodies can be quickly positioned through the matching of the male jointing stop and the female jointing stop, and are locked and fixed through the fastener, thereby avoiding repeated adjustment in the installation process and facilitating the quick recovery and installation of the launching platform in the launching field; meanwhile, the load transmission mode at the jointing surface is changed from frictional force shearing transmission to pressure load transmission at the jointing stop, thereby improving the load bearing reliability of the launching platform structure.

Description

Technical Field

[0001] This invention relates to the field of rocket launch technology, specifically to a launch pad structure based on stop splicing and its positioning method. Background Technology

[0002] With the rapid development of commercial spaceflight and the increasing launch mass of rockets, the design mass of launch pads is also increasing. Excessive size and mass will bring difficulties in transportation and installation, requiring the launch pad structure to be disassembled into small components for easier transportation and installation. After the launch pad structure is transported to the launch site, it needs to be assembled.

[0003] To provide a good supporting surface, the installed launch pad structure must meet the required flatness, parallelism, and other installation accuracy requirements. However, the assembly and installation operations at the launch site are quite challenging. To ensure accuracy, repeated adjustments to the installation position are unavoidable during the installation process, hindering rapid installation of the launch pad at the launch site. By pre-converting the flatness, parallelism, and other accuracy requirements of the launch pad structure into the matching accuracy between the stops and the positioning accuracy of the locating pins, and ensuring that all accuracy requirements are met before each assembly component leaves the factory, the installation time of the launch pad structure at the work site can be effectively reduced. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of this invention is to provide a launch pad structure based on stop splicing and its positioning method.

[0005] The launch platform structure based on stop splicing provided by the present invention includes a launch platform body, wherein the launch platform body includes a plurality of platform bodies spliced ​​sequentially; The two adjacent platforms are positioned by a stop and fixedly connected by fasteners. The stop includes a convex stop on one of the two adjacent platforms and a concave stop on the other, and the shapes of the convex stop and the concave stop are adapted to each other.

[0006] Preferably, the platform body includes a first convex stop platform body, a first concave stop platform body, a second convex stop platform body, and a second concave stop platform body; The two ends of the first convex stop body are respectively connected to one end of the first concave stop body and one end of the second concave stop body through stop joints, and the two ends of the second convex stop body are respectively connected to the other end of the first concave stop body and the other end of the second concave stop body through stop joints.

[0007] Preferably, the first convex stop body and the first concave stop body are locked and fixed together by a first fastener; The first convex stop body and the second concave stop body are locked and fixed together by a second fastener; The second convex stop body and the second concave stop body are locked and fixed together by a third fastener. The second convex stop body and the first concave stop body are locked together by a fourth fastener.

[0008] Preferably, the splicing surfaces of the first convex stop body and the first concave stop body, the splicing surfaces of the first convex stop body and the second concave stop body, the splicing surfaces of the second convex stop body and the first concave stop body, and the splicing surfaces of the second convex stop body and the second concave stop body are all provided with stop structures.

[0009] Preferably, the upper and lower surfaces of the launch platform body are formed by splicing together the upper and lower surfaces of each platform body in a coplanar manner.

[0010] Preferably, the first convex stop body, the first concave stop body, the second convex stop body, and the second concave stop body are all independent metal structural components.

[0011] According to the positioning method of the launch pad structure based on stop splicing provided by the present invention, the positioning method includes the following steps: Step S1: Fix the first convex stop platform, and connect the first concave stop platform with the first convex stop platform through stop matching, so that the upper and lower surfaces of the first convex stop platform and the first concave stop platform meet the preset accuracy requirements. Step S2: Position the first convex stop body and the first concave stop body along the splicing direction using positioning pins. Step S3: After positioning is completed, install fasteners to fix the first convex stop body and the first concave stop body together, and pull out the positioning pin. Step S4: Repeat steps S1 to S3 to splice, position and fix the second concave stop body and the first convex stop body. Step S5: The second convex stop platform is spliced, positioned, and fixed with the first concave stop platform and the second concave stop platform through stop matching, thus completing the splicing of the main body of the launch platform.

[0012] Preferably, in step S1, the preset accuracy requirements are the flatness and parallelism requirements of the upper and lower surfaces of the launch pad body, and the flatness and parallelism accuracy are guaranteed by the stop matching accuracy and the positioning pin positioning accuracy.

[0013] Preferably, in step S2, the positioning pin is inserted into the corresponding pin hole for positioning along the splicing direction, which is the long side direction of each platform.

[0014] Preferably, in step S3, the positioning pin is pulled out after the fastener is installed. The positioning pin is removed after the splicing and positioning are completed. The fastener is a permanent connector.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention sets the main body of the launch pad as a combined structure composed of multiple pads spliced ​​together in sequence. Each pad is an independent component, which can be transported to the launch site separately after processing and then spliced ​​and assembled. This effectively reduces the difficulty of transporting and lifting the launch pad structure, and is especially suitable for the transportation and rapid on-site deployment of large-size launch pad structures.

[0016] 2. This invention sets mutually compatible convex and concave stops between adjacent platforms. During splicing, the convex and concave stops of adjacent platforms only need to be aligned and matched to complete the positioning of each platform along the splicing direction. The operation is simple and quick, avoiding the cumbersome process of repeatedly adjusting the installation position to meet the accuracy requirements in the traditional splicing method, and facilitating the rapid restoration and installation of the launch pad at the launch site.

[0017] 3. This invention converts the overall flatness, parallelism and other precision requirements of the launch pad structure into matching precision requirements between the stops and positioning precision requirements of the positioning pins. The matching precision between the stops and the positioning precision of the positioning pins can be guaranteed by machining. All precision requirements are met before each launch pad leaves the factory, eliminating the need for secondary processing or adjustment at the launch site, and further shortening the installation time at the launch site.

[0018] 4. When the launch pad structure is subjected to tensile and compressive loads perpendicular to the upper and lower surfaces, the present invention converts the load transfer method of frictional shearing on the splicing surface between adjacent platform bodies into compressive load transfer at the stop, which improves the reliability of load transfer and the overall load-bearing capacity of the launch pad structure, and effectively ensures the structural safety of the launch pad during rocket launch. Attached Figure Description

[0019] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a schematic diagram of the structure of the splicing joint of the present invention.

[0020] The diagram shows: Detailed Implementation

[0021] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0022] This invention discloses a launch pad structure based on stop splicing, such as... Figure 1 , Figure 2 As shown, the system includes a launch pad body 1, which comprises multiple platforms assembled sequentially. Adjacent platforms are positioned by a stop joint and fixedly connected by fasteners. The stop joint includes a convex stop on one of the adjacent platforms and a concave stop on the other, the shapes of which are mutually adapted. The upper and lower surfaces of the launch pad body 1 are formed by the coplanar assembly of the upper and lower surfaces of each platform.

[0023] In a preferred embodiment, the platform includes a first convex stop platform 2, a first concave stop platform 3, a second convex stop platform 4, and a second concave stop platform 5. The two ends of the first convex stop platform 2 are respectively connected to one end of the first concave stop platform 3 and one end of the second concave stop platform 5 via stop joints. The two ends of the second convex stop platform 4 are respectively connected to the other ends of the first concave stop platform 3 and the second concave stop platform 5 via stop joints.

[0024] Among them, the first convex stop platform 2, the first concave stop platform 3, the second convex stop platform 4, and the second concave stop platform 5 are all independent metal structural components. Each platform is decomposed into several small-sized component structures, which reduces the overall structural size and the weight of each small component, thereby reducing the difficulty of transportation, lifting, and construction of the launch pad structure and improving economic efficiency.

[0025] like Figure 3 As shown, stop structures are provided on the splicing surfaces of the first convex stop platform 2 and the first concave stop platform 3, the splicing surface of the first convex stop platform 2 and the second concave stop platform 5, the splicing surface of the second convex stop platform 4 and the first concave stop platform 3, and the splicing surface of the second convex stop platform 4 and the second concave stop platform 5. The stop structures include convex stops and concave stops. When two adjacent platforms are spliced, the convex stop on one platform and the concave stop on the other platform cooperate with each other to achieve positioning between the platforms.

[0026] In a preferred embodiment, the first convex stop platform 2 and the first concave stop platform 3 are locked together by a first fastener 6. The first convex stop platform 2 and the second concave stop platform 5 are locked together by a second fastener 7. The second convex stop platform 4 and the second concave stop platform 5 are locked together by a third fastener 8. The second convex stop platform 4 and the first concave stop platform 3 are locked together by a fourth fastener 9. Each fastener locks adjacent platforms at different splicing positions, ensuring that the launch pad body 1 forms a stable assembly structure after splicing, capable of withstanding the load during launch.

[0027] This invention also discloses a positioning method for a launch pad structure based on stop-joint splicing, which, using the aforementioned launch pad structure based on stop-joint splicing, includes the following steps: Step S1: Fix the first convex stop platform 2, and connect the first concave stop platform 3 with the first convex stop platform 2 through stop matching, so that the upper and lower surfaces of the first convex stop platform 2 and the first concave stop platform 3 meet the preset accuracy requirements.

[0028] In a preferred embodiment, the preset accuracy requirements are the flatness and parallelism requirements of the upper and lower surfaces of the launch pad body 1. The flatness and parallelism accuracy are ensured by the matching accuracy of the stop and the positioning accuracy of the locating pins 10. For example, if the flatness requirement of the upper surface of the launch pad is 0.6mm, this can be converted to a stop matching accuracy of no more than 0.2mm, while simultaneously requiring the height dimensional accuracy of the first convex stop body 2 and the first concave stop body 3 to be no more than 0.2mm, thus ensuring that the accuracy of the upper surface of the launch pad structure does not exceed 0.6mm. Both the stop matching accuracy and the height dimensional accuracy of the platform body are guaranteed by machining and can be easily achieved.

[0029] Step S2: Position the first convex stop platform 2 and the first concave stop platform 3 along the splicing direction using positioning pins 10. Positioning pins 10 are inserted into corresponding pin holes for positioning along the splicing direction, which is the long side direction of each platform.

[0030] Step S3: After positioning is completed, install fasteners to fix the first convex stop body 2 and the first concave stop body 3, and pull out the positioning pin 10.

[0031] Step S4: Repeat steps S1 to S3 to splice, position and fix the second concave stop body 5 and the first convex stop body 2.

[0032] Step S5: The second convex stop platform 4 is spliced, positioned and fixed with the first concave stop platform 3 and the second concave stop platform 5 through stop matching, thus completing the splicing of the launch pad body 1.

[0033] In a preferred embodiment, the positioning pin 10 is pulled out after the fastener is installed. The positioning pin 10 is removed after the splicing and positioning are completed. The fastener is a permanent connector.

[0034] The above positioning method converts the overall flatness, parallelism, and other precision requirements of the launch pad structure into matching precision requirements between the stops and positioning pins. The matching precision between the stops and the positioning pins can be guaranteed by machining, ensuring that all precision requirements are met before each unit leaves the factory. This avoids repeated adjustments when the precision requirements are not suitable during the assembly and installation of the launch pad structure at the launch site, facilitating the rapid restoration and installation of the launch pad at the launch site. At the same time, when the launch pad structure 1 is subjected to tensile and compressive loads perpendicular to the upper and lower surfaces, the load transfer method of frictional shearing between adjacent units is converted into compressive load transfer at the stops, greatly improving the reliability of load transfer.

[0035] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A launch pad structure based on stop splicing, characterized in that, It includes a launch pad body (1), which comprises multiple platforms connected sequentially; The two adjacent platforms are positioned by a stop and fixedly connected by fasteners. The stop includes a convex stop on one of the two adjacent platforms and a concave stop on the other, and the shapes of the convex stop and the concave stop are adapted to each other.

2. The launch pad structure based on stop splicing according to claim 1, characterized in that, The platform includes a first convex stop platform (2), a first concave stop platform (3), a second convex stop platform (4), and a second concave stop platform (5). The two ends of the first convex stop body (2) are respectively connected to one end of the first concave stop body (3) and one end of the second concave stop body (5) through stop joint splicing. The two ends of the second convex stop body (4) are respectively connected to the other end of the first concave stop body (3) and the other end of the second concave stop body (5) through stop joint splicing.

3. The launch pad structure based on stop splicing according to claim 2, characterized in that, The first convex stop body (2) and the first concave stop body (3) are locked and fixed together by the first fastener (6); The first convex stop body (2) and the second concave stop body (5) are locked and fixed together by a second fastener (7); The second convex stop body (4) and the second concave stop body (5) are locked together by a third fastener (8). The second convex stop body (4) and the first concave stop body (3) are locked together by a fourth fastener (9).

4. The launch pad structure based on stop splicing according to claim 2, characterized in that, The splicing surfaces of the first convex stop platform (2) and the first concave stop platform (3), the splicing surfaces of the first convex stop platform (2) and the second concave stop platform (5), the splicing surfaces of the second convex stop platform (4) and the first concave stop platform (3), and the splicing surfaces of the second convex stop platform (4) and the second concave stop platform (5) are all provided with stop structures.

5. The launch pad structure based on stop splicing according to claim 1, characterized in that, The upper and lower surfaces of the launch platform body (1) are formed by splicing together the upper and lower surfaces of each platform body.

6. The launch pad structure based on stop splicing according to claim 2, characterized in that, The first convex stop body (2), the first concave stop body (3), the second convex stop body (4) and the second concave stop body (5) are all independent metal structural parts.

7. A positioning method for a launch pad structure based on stop splicing, characterized in that, The positioning method using the launch pad structure based on stop splicing as described in any one of claims 1-6 includes the following steps: Step S1: Fix the first convex stop platform (2), and connect the first concave stop platform (3) with the first convex stop platform (2) through stop matching, so that the upper and lower surfaces of the first convex stop platform (2) and the first concave stop platform (3) meet the preset accuracy requirements. Step S2: Position the first convex stop body (2) and the first concave stop body (3) along the splicing direction using positioning pins (10); Step S3: After positioning is completed, install fasteners to fix the first convex stop body (2) and the first concave stop body (3) in place, and pull out the positioning pin (10). Step S4: Repeat steps S1 to S3 to splice, position and fix the second concave stop platform (5) and the first convex stop platform (2); Step S5: The second convex stop platform (4) is spliced, positioned and fixed with the first concave stop platform (3) and the second concave stop platform (5) through stop matching, thus completing the splicing of the launch platform body (1).

8. The positioning method for a launch pad structure based on stop splicing according to claim 7, characterized in that, In step S1, the preset accuracy requirements are the flatness and parallelism requirements of the upper and lower surfaces of the launch platform body (1). The flatness and parallelism accuracy are guaranteed by the stop matching accuracy and the positioning pin (10) positioning accuracy.

9. The positioning method for a launch pad structure based on stop splicing according to claim 7, characterized in that, In step S2, the positioning pin (10) is inserted into the corresponding pin hole for positioning along the splicing direction, which is the long side direction of each platform.

10. The positioning method for a launch pad structure based on stop splicing according to claim 7, characterized in that, In step S3, after installing the fastener, the positioning pin (10) is pulled out. The positioning pin (10) is removed after the splicing and positioning are completed. The fastener is a permanent connector.

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