Connection structure of tank ring cantilever management device

Abstract

The present invention provides a connection structure for a tank annular cantilever management device, comprising a tie rod assembly and connecting lugs. The tie rod assembly comprises a tie rod, a housing zipper, and a device zipper; the housing zipper and the device zipper are respectively disposed at each end of the tie rod. The tie rod assembly is connected to the cantilever of the management device at its furthest point from the inner arm of the tank housing via the device zipper, and the tie rod assembly is connected to the tank housing via the housing zipper. Connecting lugs are provided on the peripheral sidewalls of the management device and connect to bosses on the inner wall of the tank housing. This invention has the advantages of strong resistance to mechanical environments and adaptability to pressure-induced deformation of the tank housing. It can be used as a connection structure for management devices of spacecraft with irregular-shaped tanks in cantilevered configurations.

Description

Technical Field

[0001] The present invention relates to the field of spacecraft technology, and in particular to a connection structure of a tank annular cantilever management device, and in particular to a connection structure of a tank annular management device that has strong resistance to mechanical environments and can adapt to pressurized deformation of the tank shell. Background Art

[0002] In recent years, with the rapid development of spacecraft applications, especially in the fields of manned spaceflight and deep space exploration, the application areas are constantly expanding rapidly. This has put forward higher performance requirements for the power performance of spacecraft. Greater thrust is required and they need to fly farther. Directly, more propellant needs to be loaded and a larger tank capacity is required.

[0003] However, while increasing the tank volume, further reducing the spacecraft's weight and increasing thrust are necessary. This approach, which allows the tank to hold propellant while also providing load-bearing support, presents a promising solution. While achieving comprehensive system performance, the tank can easily lead to two outcomes: a larger volume or a special-shaped structure to support loads or optimize spatial layout.

[0004] The irregular large-volume structure of the tank poses a great design challenge to the management device inside the tank. Generally, the management device needs to be designed to follow the shape of the tank. The irregular tank structure often results in an irregular management device. On the one hand, the irregular management device must consider the deformation matching with the tank shell; on the other hand, it must consider solving the problem of the weak resistance to mechanical environment caused by the irregular structure of the management device. Summary of the Invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a connection structure of a tank annular cantilever management device.

[0006] According to the present invention, a connection structure of a tank annular cantilever management device includes: a tie rod assembly and a connecting lug, wherein the tie rod assembly includes a tie rod, a housing zipper, and a device zipper;

[0007] The housing zipper and the device zipper are respectively provided at both ends of the pull rod; the pull rod assembly is connected to the cantilever of the management device away from the inner arm of the tank housing at the farthest position through the device zipper, and the pull rod assembly is connected to the tank housing through the housing zipper;

[0008] The connecting lugs are provided on the peripheral side walls of the management device, and the connecting lugs are connected to the bosses on the inner wall of the tank shell.

[0009] Preferably, the housing zipper and the pull rod are connected and fixed by an expansion screw, and the device zipper and the pull rod are connected and fixed by an expansion screw.

[0010] Preferably, the position of the housing zipper connected to the tank housing is an inner surface of the flange of the tank housing.

[0011] Preferably, the pull rod assembly is provided in plurality.

[0012] Preferably, the number of the pull rod assemblies is 12 to 24.

[0013] Preferably, the connecting lug is an "L"-shaped structure.

[0014] Preferably, the thickness of the connecting lug is 2 to 4 mm.

[0015] Preferably, the total height of the connecting lugs is 30 to 50 mm.

[0016] Preferably, the connecting lugs are provided in plurality, and the plurality of connecting lugs are evenly distributed around the circumference of the management device close to the end of the tank shell by welding.

[0017] Preferably, the number of the connecting lugs is 12 to 24.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The structure of the present invention can protect the management device from damage by adapting to the pressure-increasing deformation of the tank shell, and can also improve the management device's ability to resist mechanical environments;

[0020] 2. The present invention connects the management device and the tank shell through a tie rod assembly. The management device is connected and fixed to the tank shell both at the position close to the shell and at the position far from the shell, so that the management device is no longer in a cantilever state, which can effectively improve the management device's ability to resist mechanical environments;

[0021] 3. The present invention provides a connecting lug, which is an "L"-shaped structure. Through reasonable wall thickness and height design, it can have the ability to produce a certain deformation within its strength range, and the deformed connecting lug material will not enter a yield state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the connection structure of the tank annular cantilever management device of the present invention;

[0024] Figure 2 A schematic structural diagram of a tie rod assembly of a connection structure of a storage tank annular cantilever management device according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of the connection lugs of the connection structure of the tank annular cantilever management device of the present invention.

[0026] The figure shows:

[0027] Tie rod assembly 1 Connecting lug 2

[0028] Pull rod 11 Management device 3

[0029] Shell zipper 12 Tank shell 4

[0030] Device zipper 13 DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figures 1 to 3 As shown, this embodiment provides a connection structure for a tank annular cantilever management device, comprising a tie rod assembly 1 and a connecting lug 2. The tie rod assembly 1 includes a tie rod 11, a housing zipper 12, and a device zipper 13, respectively disposed at each end of the tie rod 11. The tie rod assembly 1 is connected to the management device 3 at the farthest point of the cantilever, away from the inner arm of the tank housing 4, via the device zipper 13. The tie rod assembly 1 is connected to the tank housing 4 via the housing zipper 12. The connecting lug 2 is provided on the peripheral sidewall of the management device 3 and connects to a boss on the inner wall of the tank housing 4. The housing zipper 12 is connected to the tank housing 4 at the inner surface of the flange of the tank housing 4.

[0034] Multiple tie rod assemblies 1 are provided. The number of tie rod assemblies 1 is 12 to 24. Multiple connecting lugs 2 are provided. The multiple connecting lugs 2 are evenly distributed around the circumference of the management device 3 near the end of the tank shell 4 by welding. The number of connecting lugs 2 is 12 to 24.

[0035] The housing zipper 12 and the pull rod 11 are connected and fixed by expansion screws, and the device zipper 13 and the pull rod 11 are connected and fixed by expansion screws.

[0036] The connecting lug 2 is an L-shaped structure. The thickness of the connecting lug 2 is 2 to 4 mm. The total height of the connecting lug 2 is 30 to 50 mm.

[0037] Working principle:

[0038] The management device 3 is connected to the tank shell 4 by the housing zipper 12 and the device zipper 13 of the pull rod assembly 1. The management device 3 is a rigid structure. The management device 3 is connected and fixed to the tank shell 4 at both the position close to the tank shell 4 and the position far away from the tank shell 4, so that the management device 3 is no longer in a cantilever state, which can effectively improve the management device's resistance to mechanical environments.

[0039] The connecting lug is an "L"-shaped structure. Through reasonable wall thickness and height design, it can have the ability to produce a certain deformation within its strength range. At the same time, the deformed connecting lug material will not enter the yield state.

[0040] Example 2:

[0041] like Figures 1 to 3 As shown, this embodiment provides a connection structure of a tank annular cantilever management device, which consists of a tie rod assembly 1 and a connecting lug 2. The tie rod assembly 1 consists of a tie rod 11, a shell zipper 12, and a device zipper 13.

[0042] A pull rod assembly 1 consists of a pull rod 11, a housing zipper 12, and a device zipper 13. Two zippers are respectively connected to the two ends of a pull rod 11, and the pull rod 11 and the zipper are fixed with expansion screws.

[0043] The pull rod assembly 1 is connected to the management device 3 at the farthest position of the cantilever away from the inner arm of the tank shell 4 through one end of the device zipper 13, and the shell zipper 12 is connected to the tank shell 4.

[0044] The position of the housing fastener 12 connected to the tank housing 4 is the inner surface of the flange of the tank housing 4.

[0045] One end of the pull rod assembly 1 is connected to the management device 3 at the farthest position of the cantilever of the inner arm away from the tank shell 4, and the other end is connected to the tank shell 4.

[0046] The number of the pull rod assemblies 1 is 12 to 24. The connecting lugs 2 are L-shaped structures with a thickness of 2 to 4 mm, and the total height of the connecting lugs 2 is 30 to 50 mm. The number of the connecting lugs 2 is 12 to 24.

[0047] Example 3:

[0048] Those skilled in the art may understand this embodiment as a more specific description of Embodiment 1 and Embodiment 2.

[0049] like Figure 1 As shown, the connection structure of the tank annular cantilever structure management device of this embodiment is composed of a pull rod assembly 1 and a connecting lug 2.

[0050] Twenty-four connecting lugs 2 are welded evenly around the circumference of the management device 3 near the end of the tank shell 4. The tie rod assembly 1 is connected to the raised lug structure on the cantilevered portion of the management device, farthest from the shell, via expansion screws. The connecting lugs are then overlapped with bosses on the inner wall of the tank shell 4 and secured with expansion screws. The tie rod assembly 1 is also fixed to the end of the tank shell 4 using the expansion screws.

[0051] like Figure 2 As shown, the connection structure of the pull rod assembly 1 of the present invention is as follows. The pull rod assembly 1 consists of a pull rod 11, a shell zipper 12, and a device zipper 13. The pull rod 11 is fixedly connected to the shell zipper 12 and the device zipper 13 respectively by expansion screws.

[0052] In order to solve the shortcomings of poor mechanical environment resistance and weak shell deformation resistance of the annular management device of the annular tank under the cantilever structure, this embodiment provides a connection structure of the tank annular management device with strong mechanical environment resistance and adaptability to tank shell pressurization deformation.

[0053] One of the technical solutions of this embodiment is: strong resistance to mechanical environment: 1) The management device is connected to the boss on the inner wall of the tank shell through 24 connecting ears around the shell; 2) The management device is connected to the tank shell through 24 tie rod assemblies at the farthest part of the cantilever away from the shell, and the connection position of the tie rod assembly and the tank shell is on the inner side of the shell flange; the above solution can solve the problem of poor resistance to mechanical environment of the management device.

[0054] The principle of the above scheme is that the management device is a rigid structure, and is connected and fixed to the tank shell at the position close to the shell and the position far away from the shell, so that the management device is no longer in a cantilever state, which can effectively improve the management device's ability to resist mechanical environment

[0055] The second technical solution of this embodiment is to adapt to the pressure-induced deformation of the tank shell. The management device is connected to the tank shell via 24 L-shaped connecting lugs. This solution solves the problem of the management device being unable to adapt to the pressure-induced deformation of the tank shell.

[0056] The principle of the above solution is that the connecting lug is an "L"-shaped structure. Through reasonable wall thickness and height design, it can have the ability to produce a certain deformation within its strength range, and at the same time, the deformed connecting lug material will not enter a yield state.

[0057] The invention has the advantages of strong resistance to mechanical environment and adaptability to pressure-increased deformation of the tank shell, and can be used as a connecting structure for a management device of the cantilever state of a special-shaped tank of a spacecraft.

[0058] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0059] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A connection structure for a tank annular cantilever management device, characterized in that: include: A pull rod assembly (1) and a connecting lug (2), wherein the pull rod assembly (1) comprises a pull rod (11), a housing zipper (12) and a device zipper (13); The housing zipper (12) and the device zipper (13) are respectively arranged at both ends of the pull rod (11); the pull rod assembly (1) is connected to the farthest position of the cantilever of the management device (3) away from the inner arm of the tank housing (4) through the device zipper (13), and the pull rod assembly (1) is connected to the tank housing (4) through the housing zipper (12); The connecting lug (2) is provided on the peripheral side wall of the management device (3), and the connecting lug (2) is connected to the boss on the inner wall of the tank shell (4); The position of the housing fastener (12) connected to the tank housing (4) is the inner flange surface of the tank housing (4).

2. The connection structure of the tank annular cantilever management device according to claim 1, characterized in that: The housing zipper (12) and the pull rod (11) are connected and fixed via expansion screws, and the device zipper (13) and the pull rod (11) are connected and fixed via expansion screws.

3. The connection structure of the tank annular cantilever management device according to claim 1, characterized in that: The pull rod assembly (1) is provided in plurality.

4. The connection structure of the tank annular cantilever management device according to claim 3, characterized in that: The number of the pull rod assemblies (1) is 12 to 24.

5. The connection structure of the tank annular cantilever management device according to claim 1, characterized in that: The connecting lug (2) is an "L"-shaped structure.

6. The connection structure of the tank annular cantilever management device according to claim 5, characterized in that: The thickness of the connecting lug (2) is 2 to 4 mm.

7. The connection structure of the tank annular cantilever management device according to claim 5, characterized in that: The total height of the connecting lug (2) is 30-50 mm.

8. The connection structure of the tank annular cantilever management device according to claim 1, characterized in that: The connecting lugs (2) are provided in plurality, and the plurality of connecting lugs (2) are evenly distributed around the circumference of the management device (3) near the end of the tank shell (4) by welding.

9. The connection structure of the tank annular cantilever management device according to claim 8, characterized in that: The number of the connecting lugs (2) is 12 to 24.

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