Rapid butt joint tool for carrier rocket storage tank bottom rack

Abstract

The utility model provides a rapid butt joint tool for a carrier rocket storage tank bottom rack. The rapid butt joint tool comprises an outer ring frame, a small end frame connecting part and a connecting frame. Wherein the outer ring frame is annular and is used for being in butt joint with a rear short shell of a storage box; the small end frame connecting part is arranged in the outer ring frame and is used for being in butt joint with a small end frame of a rack; and the connecting frame is used for connecting the outer ring frame and the small end frame connecting part. According to the butt joint tool, rapid butt joint of the rack and the bottom of the storage box can be achieved, and the work efficiency of butt joint assembly of the rack and the bottom of the storage box is improved.

Description

Technical Field

[0001] The utility model relates to the field of liquid launch vehicles, and particularly to a quick docking tooling for the bottom frame of a launch vehicle storage tank. Background Art

[0002] At present, for liquid rockets with a relatively large diameter, the engine is connected to the bottom of the storage tank through an engine frame. This connection method has a compact structure, can effectively shorten the length of the rocket body, and reduce the weight of the rocket body. The patent No. CN222558636U "A bottom structure of a storage tank with a frame" discloses a structural form for connecting an engine frame to the bottom of an ultra-thin wall stainless steel storage tank of a large-diameter liquid rocket. This structure mainly consists of a stainless steel storage tank bottom, a frame force transmission plate, a small end frame of the frame, a frame ring frame, bottom corner pieces of the tank, etc. The stainless steel storage tank bottom is welded by segments and a top cover, the bottom corner pieces of the tank are welded to the bottom of the tank, and after the frame force transmission plate, the small end frame of the frame and the ring frame are combined, they are connected to the bottom corner pieces of the tank. The engine is connected to the small end frame of the frame through a gimbal, and the engine transmits the thrust to the bottom of the storage tank through the small end frame of the frame, the frame force transmission plate and the corner pieces.

[0003] For a launch vehicle, the installation accuracy of the engine will affect the attitude control accuracy of the rocket body. Since the engine is connected to the small end frame of the frame, the installation accuracy of the small end frame of the frame will directly affect the position of the engine thrust line, the attitude control adjustment ability and the consumption of propellant fuel.

[0004] To improve the installation efficiency and installation accuracy of the engine frame, it is particularly important to design a quick docking tooling for the bottom frame of a launch vehicle storage tank. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a quick docking tooling for the bottom frame of a launch vehicle storage tank.

[0006] The utility model provides a quick docking tooling for the bottom frame of a launch vehicle storage tank, including: an outer ring frame, a small end frame connecting component and a connecting frame; wherein, the outer ring frame is annular and is used for docking with the rear short shell of the storage tank; the small end frame connecting component is arranged inside the outer ring frame and is used for docking with the small end frame of the frame; the connecting frame is used for connecting the outer ring frame and the small end frame connecting component.

[0007] According to an embodiment of the utility model, the connecting frame includes a plurality of radial brackets; each of the radial brackets is arranged along the radial direction of the outer ring frame, and the radial brackets are used for connecting the outer ring frame and the small end frame connecting component.

[0008] According to an embodiment of the utility model, the plurality of radial brackets are uniformly arranged along the circumferential direction of the outer ring frame.

[0009] According to an embodiment of the present utility model, the connecting frame further includes outer columns uniformly arranged circumferentially along the outer ring frame; each of the outer columns is arranged along the axial direction of the outer ring frame; the radial bracket is connected to the outer ring frame through the outer columns.

[0010] According to an embodiment of the present utility model, the connecting frame further includes a reinforcing frame; both ends of the reinforcing frame are respectively used for connecting the outer columns and the radial bracket.

[0011] According to an embodiment of the present utility model, the small end frame connecting component includes a plurality of inner columns; one end of each inner column is fixedly connected to the connecting frame, and the other end of each inner column is used for docking with the small end frame of the machine frame.

[0012] According to an embodiment of the present utility model, the small end frame connecting component further includes a small end frame connecting plate; the small end frame connecting plate is used for sequentially connecting one ends of the plurality of inner columns away from the connecting frame, and the small end frame connecting plate is used for docking with the small end frame of the machine frame.

[0013] According to an embodiment of the present utility model, it further includes an annular intermediate ring frame; the intermediate ring frame is arranged inside the outer ring frame, and the small end frame connecting component is arranged inside the intermediate ring frame; the intermediate ring frame is sequentially connected to each of the radial brackets, and an end face in the axial direction of the intermediate ring frame is provided with an intermediate column extending along its axial direction; the intermediate column is used for docking with the force transmission plate of the machine frame.

[0014] According to an embodiment of the present utility model, it further includes an annular inner ring frame; the inner ring frame is arranged inside the intermediate ring frame, and the small end frame connecting component is arranged inside the inner ring frame; the inner ring frame is sequentially connected to each of the radial brackets.

[0015] According to an embodiment of the present utility model, the connecting frame is detachably connected to the outer ring frame and the small end frame connecting component.

[0016] According to the quick docking tooling for the bottom frame of the launch vehicle storage tank of the present utility model, by first combining a plurality of machine frame force transmission plates with the small end frame of the machine frame and then docking with the bottom of the storage tank, the quick docking of the machine frame and the bottom of the storage tank is realized, and the working efficiency of the docking and assembly of the machine frame and the bottom of the storage tank is improved.

[0017] It should be understood that the above general description and the following specific embodiments are only exemplary and explanatory, and cannot limit the scope claimed by the present utility model. Description of the Drawings

[0018] The following drawings are part of the specification of the present utility model, which illustrate exemplary embodiments of the present utility model. The attached drawings, together with the description in the specification, are used to explain the principle of the utility model.

[0019] Figure 1 It is a three-dimensional view of the quick docking tooling for the bottom frame of the carrier rocket tank and the docking of the frame with the bottom of the tank in an embodiment of the present utility model;

[0020] Figure 2 It is a three-dimensional view of the quick docking tooling for the bottom frame of the carrier rocket tank in an embodiment of the present utility model;

[0021] Figure 3 It is a top view of the quick docking tooling for the bottom frame of the carrier rocket tank in an embodiment of the present utility model;

[0022] Figure 4 It is a front view of the quick docking tooling for the bottom frame of the carrier rocket tank in an embodiment of the present utility model;

[0023] Figure 5 It is a schematic diagram of a bottom structure of a tank with a frame in the prior art.

[0024] Explanation of reference numerals:

[0025] 1 - Docking tooling; 2 - Bottom of the tank; 3 - Rear short shell of the tank; 4 - Frame force transfer plate; 5 - Small end frame of the frame; 6 - Bottom corner piece; 101 - Outer ring frame; 102 - Intermediate ring frame; 103 - Inner ring frame; 104 - Outer side column; 105 - Intermediate column; 106 - Inner side column; 107 - Small end frame connection plate; 108 - Radial support; 109 - Reinforcement frame. Detailed implementation manners

[0026] The features and exemplary embodiments of various aspects of the present utility model will be described in detail below. In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the attached drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present utility model and are used to exemplarily illustrate the principle of the present utility model, and are not configured to limit the present utility model. In addition, the components in the drawings are not necessarily drawn to scale. For example, the dimensions of some components or regions in the drawings may be enlarged for other components or regions to help understand the embodiments of the present utility model.

[0027] The orientation terms used in the following description are all the directions shown in the figures, and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that unless otherwise specified, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the terms "comprising", "including", "having" or any other variant thereof are intended to cover non-exclusive inclusion, so that a structure or component including a series of elements not only includes those elements, but also other elements that are not explicitly listed or are inherent to the structure or component. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the article or device including the elements.

[0029] Spatial relationship terms such as "below", "beneath", "under", "low", "above", "over", "high", etc. are used to facilitate description and to explain the positioning of one element relative to a second element. These terms are intended to cover different orientations of the device, except for orientations different from those shown in the figures. Additionally, for example, "one element is on / under another element" can mean that the two elements are in direct contact, or that there are other elements between the two elements. Furthermore, terms such as "first", "second", etc. are also used to describe each element, region, part, etc., and do not particularly refer to order or sequence, and should not be construed as limiting. Similar terms throughout the description denote similar elements.

[0030] In the following description of the present invention, in certain scenario descriptions, only "rocket", "launch vehicle", "spacecraft", "space launch vehicle" or "missile" may be used. This is only for convenience of description, and its connotation is not limited to the specific words used. Generally, the launch vehicle of the present invention includes both space launch vehicles for launching satellites, spacecraft or other detectors, and various missiles, rockets, etc. used for carrying payloads, as well as similar products that can send payloads into the air. Those skilled in the art should not limit the launch vehicle to only one of a rocket or a missile according to the specific words used in the description scenario, so as to narrow the protection scope of the present invention.

[0031] For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only provided to provide a better understanding of the present invention by showing examples of the present invention.

[0032] Figure 1 This is a perspective view of a rapid docking tool for a carrier rocket tank bottom frame, and the docking of the frame with the tank bottom according to an embodiment of the utility model; Figure 2 This is a perspective view of a quick docking tool for a carrier rocket tank bottom frame according to an embodiment of the present utility model; Figure 3 This is a top view of a quick docking tool for a carrier rocket tank bottom frame according to one embodiment of the utility model; Figure 4 This is a front view of a quick docking tool for a carrier rocket tank bottom frame according to one embodiment of the utility model; Figure 5 It is a schematic diagram of a tank bottom structure with a frame in the prior art.

[0033] like Figure 1 and Figure 2 As shown, the present invention provides a rapid docking tool for a launch vehicle tank bottom frame, comprising an outer ring frame 101, a small end frame connecting component, and a connecting bracket. The outer ring frame 101 is annular and is used to dock with the tank rear short shell 3. The small end frame connecting component is disposed within the outer ring frame 101 and is used to dock with the small end frame 5 of the frame. The connecting bracket connects the outer ring frame 101 and the small end frame connecting component.

[0034] The docking tool 1 of this embodiment is used to connect the engine frame and the tank bottom (for example, Figure 5 The process of docking the frame and the tank bottom shown is as follows: first, the small end frame connecting component is fixedly connected to the small end frame 5 of the frame; secondly, one end of the frame force transmission plate 4 is fixedly connected to the small end frame 5 of the frame (for example, by bolt connection), and the frame ring frame is fixedly connected to the frame force transmission plate 4 to form the frame and the docking tooling assembly; then, the outer ring frame 101 is docked with the end surface of the tank rear short shell 3 of the tank bottom 2 to position the small end frame 5 of the frame and the frame force transmission plate 4; then, the tank bottom angle piece 6 is positioned according to the position of the frame force transmission plate 4; then, the frame and the docking tooling assembly are evacuated, and the tank bottom angle piece is fixedly connected to the tank rear short shell 3 (for example, by welding); finally, the frame and the docking tooling assembly are re-aligned with the end surface of the tank rear short shell 3, and the frame force transmission plate 4, the frame ring frame and the tank bottom angle piece 6 are connected and fixed.

[0035] This docking fixture rapidly assembles frame components (including the frame force transmission plates, frame small end frames, and frame ring frames) with the tank bottom 2 by first assembling multiple frame force transmission plates 4 with the frame small end frames 5 and then docking them with the tank bottom. This improves the efficiency of the frame-to-tank bottom docking assembly process and ensures the precise installation position of the frame small end frames 5 and the engine relative to the tank rear short case 3, thereby enhancing the precision and efficiency of rocket control. This docking fixture boasts a simple structure, easy operation, low cost, high positioning accuracy, and is reusable. For example, it can be welded from carbon steel to enhance its rigidity.

[0036] like Figure 2 and Figure 3 As shown, according to one embodiment of the present invention, the connecting frame includes a plurality of radial supports 108. Each radial support 108 is arranged along the radial direction of the outer ring frame 101, and the radial support 108 is used to connect the outer ring frame 101 and the small end frame connecting component.

[0037] According to an embodiment of the present invention, a plurality of radial supports 108 are evenly arranged along the circumferential direction of the outer ring frame 101 .

[0038] According to an embodiment of the present invention, the ends of the plurality of radial supports 108 away from the outer ring frame 101 are connected to each other.

[0039] In this embodiment, for example, one end of the plurality of radial supports 108 is connected to the outer ring frame 101, and the other ends of the plurality of radial supports 108 are connected to each other to form an integral structure. The small end frame connecting component is arranged in the middle of the radial supports 108 or near the center of the integral structure.

[0040] like Figure 2 As shown, according to one embodiment of the present invention, in addition to the radial supports 108, the connecting frame further includes outer columns 104 uniformly arranged along the circumference of the outer ring frame 101. Each outer column 104 is arranged along the axial direction of the outer ring frame 101. The radial supports 108 are connected to the outer ring frame 101 through the outer columns 104. For example, Figure 2 As shown, the radial support 108 and the outer column 104 are arranged on the same side of the outer ring frame 101 .

[0041] In this embodiment, the radial bracket 108 is connected to the outer ring frame 101 through the outer column 104, which can form a space adapted to the engine frame, so that the docking tooling can adapt to the shape of the engine frame.

[0042] like Figure 2 As shown, according to one embodiment of the present invention, in addition to the radial support and the outer column 104, the connecting frame further includes a reinforcing frame 109. The two ends of the reinforcing frame 109 are used to connect the outer column 104 and the radial support 108 respectively.

[0043] In this embodiment, for example, one end of the reinforcing frame 109 can be connected to the middle part of the radial support 108, and the other end of the reinforcing frame 109 is connected to the middle part of the outer column 104 or a position of the outer column 104 close to the outer ring frame 101 to enhance the structural strength of the connecting frame.

[0044] As Figure 3 and Figure 4 shown, according to an embodiment of the present invention, the small end frame connecting component includes a plurality of inner columns 106. One end of the inner column 106 is fixedly connected to the connecting frame (for example, connected to the radial support 108), and the other end of the inner column 106 is used to dock with the small end frame 5 of the machine frame.

[0045] In this embodiment, for example, the plurality of inner columns 106 can be arranged in one-to-one correspondence with the radial supports 108. One end of the inner column 106 is connected to the radial support 108, and the whole is a structure extending along the axial direction of the outer ring frame 101.

[0046] As Figure 3 and Figure 4 shown, according to an embodiment of the present invention, in addition to the inner column 106, the small end frame connecting component further includes a small end frame connecting plate 107. The small end frame connecting plate 107 is used to sequentially connect one ends of the plurality of inner columns 106 far from the connecting frame, and the small end frame connecting plate 107 is used to dock with the small end frame 5 of the machine frame.

[0047] According to an embodiment of the present invention, in addition to the outer ring frame 101, the small end frame connecting component and the connecting frame, the docking tooling further includes an annular middle ring frame 102. The middle ring frame 102 is arranged inside the outer ring frame 101, and the small end frame connecting component is arranged inside the middle ring frame 102. The middle ring frame 102 is sequentially connected to each radial support 108, and a middle column 105 extending along its axial direction is arranged on one end face in the axial direction of the middle ring frame 102. The middle column 105 is used to dock with the machine frame force transmission plate 4.

[0048] In this embodiment, for example, the middle column 105 can be used to connect to the middle part of the machine frame force transmission plate 4. For example, one end face in the axial direction of the middle ring frame 102 is connected to each radial support 108.

[0049] According to an embodiment of the present invention, in addition to the outer ring frame 101, the middle ring frame 102, the small end frame connecting component and the connecting frame, the docking tooling further includes an annular inner ring frame 103. The inner ring frame 103 is arranged inside the middle ring frame 102, and the small end frame connecting component is arranged inside the inner ring frame 103. The inner ring frame 103 is sequentially connected to each radial support 108.

[0050] In this embodiment, for example, one side of the inner ring frame 103 close to the radial support 108 is sequentially connected to the radial support 108 to increase the structural strength of the docking tooling.

[0051] According to an embodiment of the present invention, the connecting frame is detachably connected to the outer ring frame 101 and the small end frame connecting member.

[0052] In this embodiment, for example, the connections between the outer ring frame 101 and the outer side columns 104, between the outer side columns 104 and the radial supports 108, and between the inner side columns 106 and the small end frame connecting plate 107 are all detachable connections. For example, by increasing or decreasing the number of outer side columns 104 according to the stiffness requirements of the docking tooling. For example, it is also possible to adapt to scenarios with different axial dimensions of the rack, different lengths and circumferential positions of the rack force transfer plate 4, or to adapt to the scenario where the rack requires different installation heights when the bottom of the storage tank undergoes axial deformation by replacing the small end frame connecting plates 107 with different thicknesses (axial dimensions), adjusting the circumferential position and length of the intermediate columns 105, etc., thereby improving the adaptability of the docking tooling.

[0053] The process of docking the engine rack with the bottom of the storage tank using the docking tooling provided by an embodiment of the present invention is as follows:

[0054] S01: Connect the rack to the docking tooling, specifically as follows:

[0055] First, fixedly connect the small end frame 5 of the rack to the small end frame connecting plate 107 (for example, by fixing with positioning pins and bolts); then, fixedly connect one end of the rack force transfer plate 4 to the small end frame of the rack, fixedly connect the middle part of the rack force transfer plate 4 to the intermediate column 105 (for example, by fixing with bolts), and fixedly connect the rack ring frame to the rack force transfer plate 4 to form a combination of the rack and the docking tooling;

[0056] S02: Dock the combination of the rack and the docking tooling to the rear short shell 3 of the storage tank through the outer ring frame 101;

[0057] S03: Locate the installation position of the bottom corner piece 6 of the tank according to the positions of the rack force transfer plate 4 and the rack ring frame;

[0058] S04: Withdraw the combination of the rack and the docking tooling from the rear short shell 3 of the storage tank, and fixedly connect the bottom corner piece 6 to the rear short shell 3 of the storage tank (for example, by welding);

[0059] S05: Re-dock the combination of the rack and the docking tooling to the end face of the rear short shell 3 of the storage tank; process the connection holes of the rack force transfer plate 4 and the rack ring frame through the connection holes of the bottom corner piece 6, and fixedly connect the connection holes of the bottom corner piece 6 to the connection holes of the rack force transfer plate 4 and the rack ring frame (for example, by connecting with bolts or rivets);

[0060] S06: Remove the connectors between the docking fixture 1 and the small end frame 5 of the frame, the force transmission plate 4 of the frame, and the short rear shell 3 of the tank, and remove the docking fixture 1 from the tank to complete the rapid assembly of the tank bottom and the frame.

[0061] The above embodiments of the present invention can be combined with each other and have corresponding technical effects.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rapid docking tooling for the bottom frame of a launch vehicle propellant tank, characterized in that, Comprising: An outer ring frame, a small end frame connecting component, and a connecting frame; wherein, the outer ring frame is annular and is used for docking with the rear short shell of the storage tank. The small end frame connecting component is arranged inside the outer ring frame and is used for docking with the small end frame of the rack; the connecting frame is used for connecting the outer ring frame and the small end frame connecting component.

2. The docking tooling according to claim 1, characterized in that, The connecting frame includes a plurality of radial brackets; each of the radial brackets is arranged along the radial direction of the outer ring frame, and the radial brackets are used for connecting the outer ring frame and the small end frame connecting component.

3. The docking tooling according to claim 2, wherein The plurality of radial brackets are uniformly arranged along the circumferential direction of the outer ring frame.

4. The docking tooling according to claim 3, characterized in that, The connecting frame further includes outer side columns uniformly arranged along the circumferential direction of the outer ring frame; each of the outer side columns is arranged along the axial direction of the outer ring frame; the radial brackets are connected to the outer ring frame through the outer side columns.

5. The docking tooling according to claim 4, wherein The connecting frame further includes a reinforcing frame; both ends of the reinforcing frame are respectively used for connecting the outer side columns and the radial brackets.

6. The docking tooling according to claim 1, characterized in that, The small end frame connecting component includes a plurality of inner side columns; one end of each inner side column is fixedly connected to the connecting frame, and the other end of the inner side column is used for docking with the small end frame of the rack.

7. The docking tooling according to claim 6, characterized in that, The small end frame connecting component further includes a small end frame connecting plate; the small end frame connecting plate is used for sequentially connecting one ends of the plurality of inner side columns away from the connecting frame, and the small end frame connecting plate is used for docking with the small end frame of the rack.

8. The docking tooling according to claim 2, wherein It further includes an annular intermediate ring frame; the intermediate ring frame is arranged inside the outer ring frame, and the small end frame connecting component is arranged inside the intermediate ring frame; the intermediate ring frame is sequentially connected to each of the radial brackets, and one end face in the axial direction of the intermediate ring frame is provided with an intermediate column extending along its axial direction; the intermediate column is used for docking with the force transmission plate of the rack.

9. The docking tooling according to claim 8, wherein It further includes an annular inner ring frame; the inner ring frame is arranged inside the intermediate ring frame, and the small end frame connecting component is arranged inside the inner ring frame; the inner ring frame is sequentially connected to each of the radial brackets.

10. The docking tooling according to claim 1, characterized in that The connecting frame is detachably connected to the outer ring frame and the small end frame connecting component.

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