High-bearing-capacity and light-weight spherical storage box supporting and fastening device based on additive manufacturing
A technology of additive manufacturing and fastening device, which is applied in transportation and packaging, space navigation equipment, space navigation aircraft, etc. It can solve the problems of long length of belt I8 and belt II9, low bearing efficiency, and 11 size of reinforcing ribs. It can improve the layout flexibility, improve the load-carrying efficiency, and reduce the design constraints.
Pending Publication Date: 2021-12-21
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
[0007] (1) Defects of scheme one: it is necessary to set a waist flange specially used for connecting and fixing at the waist of the spherical storage tank 1, which increases the weight of the spherical storage tank 1; if the spherical storage tank 1 is fixed on the base, it requires The diameter and height dimensions must be greater than or equal to the radius of the spherical storage tank 1, resulting in a heavy base; if it is directly fixed on the structural member, in order to meet the installation needs of the spherical storage tank, the structural member needs to open a spherical storage tank with a diameter greater than or equal to 1. The diameter of the circular hole has more constraints on the structural design;
[0008] (2) Defects of Scheme 2: Since the bottom of the spherical tank 1 needs to bear the full weight of the spherical tank 1 and the propellant, the structure of the spherical tank 1 needs to be strengthened, which increases the weight of the spherical tank 1 , and the force on the bottom of the spherical storage tank 1 is likely to cause its structure to be unstable and damaged, so it is difficult to adapt to the mechanical environment of high impact and large overload;
[0009] (3) Defects of Scheme 3: Tape I8 and Tape II9 need to go around the spherical storage tank 1 for a week, resulting in long length and heavy weight of Tape I8 and Tape II9; Low efficiency, resulting in a structural weight-bearing ratio of the scheme (fastening device weight / total weight) ≥ 10%, low load-bearing efficiency
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[0032] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0033] This embodiment provides a high-load, light-weight spherical tank support and fastening device based on additive manufacturing, which overcomes the defects of the spherical tank support and fastening scheme in the prior art, and can install the spherical tank on a small plane structure Above all, the installation area can be smaller than the projected area of the spherical tank, and it has the advantages of reasonable setting of fixed points, small installation area, less design constraints on the structure near the spherical tank, and the ability to withstand the mechanical environment of high impact and large overload; at the same time, There is no need to arrange installation interfaces such as flanges on the spherical storage tank, so as to avoid extra weight increase of the spherical storage tank.
[0034] like Figure 4 and Figure 5 As sh...
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The invention discloses a high-bearing-capacity and light-weight spherical storage box supporting and fastening device based on additive manufacturing. The high-bearing-capacity and light-weight spherical storage box supporting and fastening device comprises a cross wrapping tape, a wrapping tape friction buffering cushion, a support friction buffering cushion and an integrated support. The integrated support is manufactured through additive manufacturing, and a spherical-bowl-shaped groove is formed in the upper end of the integrated support and used for containing the spherical storage box. Four mounting seats are uniformly arranged at the upper end of the integrated support in the circumferential direction, the cross wrapping tape is hooped on the outer surface of the spherical storage box, and four end parts of the cross wrapping tape are respectively fixed on the four mounting seats of the integrated support; and the wrapping tape friction buffering cushion is arranged between the cross wrapping tape and the spherical storage box, and the support friction buffering cushion is arranged between the integrated support and the spherical storage box.
Description
technical field [0001] The invention relates to the technical field of support and fastening of spherical tanks, in particular to a support and fastening device for spherical tanks with high load and light weight based on additive manufacturing. Background technique [0002] The design of the supports and fastening devices used in the installation of spherical tanks on spacecraft is related to the installation interface of the tanks, the nearby structural forms and the positional relationship between them. At present, there are mainly three types of support and fastening device schemes for spherical tanks on spacecraft: [0003] Option one, such as figure 1 As shown, it is fixed on a base or directly on a structural member (such as a load-bearing cylinder) through the waist flange 2 arranged at the waist of the spherical tank 1; [0004] Option two, such as figure 2 As shown, the bottom of the spherical tank 1 is fixed on the tank mount 7 by the bottom flange 6 of the sp...
Claims
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IPC IPC(8): B64G1/22
CPCB64G1/22
Inventor郭璠傅子敬田娜王闯周晓舟施华
OwnerBEIJING INST OF SPACECRAFT SYST ENG