CN108679299B

CN108679299B - Double-layer valve support of on-orbit spacecraft

Info

Publication number: CN108679299B
Application number: CN201810760175.0A
Authority: CN
Inventors: 朱运盛; 申静静; 吴天宇; 肖开阳; 徐磊; 董大柯; 曹志刚
Original assignee: Shanghai Institute of Space Propulsion
Current assignee: Shanghai Institute of Space Propulsion
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2020-05-29
Anticipated expiration: 2038-07-11
Also published as: CN108679299A

Abstract

The invention provides a double-layer valve support of an in-orbit spacecraft, which comprises a lower support (1), an upper support (2) and a clamp (3); the lower support (1), the upper support (2) and the hoop (3) are sequentially overlapped and connected through a fastening piece (5); one or more first mounting spaces (6) are formed between the opposite surfaces of the lower support (1) and the upper support (2); one or more second mounting spaces (7) are formed between the opposite surfaces of the upper support (2) and the clamp (3); the lower support (1) and the upper support (2) are made of nylon; the outer surfaces of the lower support (1) and the upper support (2) are covered by aluminum-plated films (4). The valve is stacked by adopting the double-layer support, so that the space utilization rate is improved, and the weight of the valve is greatly reduced compared with that of the traditional support while the valve works on the track for a long time.

Description

Double-layer valve support of on-orbit spacecraft

Technical Field

The invention relates to the field of spaceflight, in particular to a double-layer valve support of an in-orbit spacecraft, and particularly relates to a light-weight double-layer valve support aiming at long-term in-orbit.

Background

Spacecraft are designed to have longer and longer in-orbit life, and for some large-size spacecraft such as space stations, a great deal of demand is placed on a valve support, so that the valve support needs to be lighter and can work in-orbit for a long time. The valve support in the past uses the valve tiling to give first place to, adopts aluminum alloy to make more, and the design is ripe, but space utilization is not high and the quality is slightly heavier. The large-scale spacecraft needs to work on orbit for a long time, has strict requirements on the weight of a system, and needs to adopt new materials to realize great weight reduction while optimizing the configuration design. Compared with the prior art, the nylon has small density and high strength, can replace aluminum alloy to realize light weight, but the non-metallic material can be rapidly aged in a space environment. For a large-scale spacecraft, most of valves are arranged in a cabin, and most of atomic oxygen is isolated outside the cabin, so that the problem of rapid aging of nylon in a space environment can be effectively solved after the outer surface of the nylon is coated with an aluminized film. Therefore, the novel valve support can greatly reduce the weight compared with the traditional support while realizing long-term on-orbit work.

Disclosure of Invention

In view of the defects in the prior art, the invention aims to provide a double-layer valve support of an in-orbit spacecraft.

The double-layer valve support of the in-orbit spacecraft is characterized by comprising a lower support, an upper support and a clamp; the lower support, the upper support and the hoop are sequentially overlapped and connected through a fastening piece; one or more first mounting spaces are formed between the opposite surfaces of the lower support and the upper support; one or more second installation spaces are formed between the opposite surfaces of the upper support and the clamping hoop.

Preferably, the lower support and the upper support are made of nylon.

Preferably, the outer surfaces of the lower support and the upper support are covered by aluminum-plated films.

Preferably, there are one or more arc recess on the side of going up of undersetting, there are one or more arc recess on the downside of undersetting, the arc recess one-to-one of side on the position of the arc recess of the upper ledge downside and the undersetting, has injectd one or more first installation space jointly after the side of going up of undersetting and the downside of undersetting are connected.

Preferably, the upper side surface of the upper support is provided with one or more arc-shaped grooves, each arc-shaped groove is connected with or is connected with a part of the corresponding clamp, and the upper side surface of the upper support and the clamps jointly define one or more second installation spaces.

Preferably, the upper side surface of the lower support is connected with the lower side surface of the upper support; the last side and one or more clamp connection of upper bracket, fastener run-through connection clamp, upper bracket, undersetting.

Preferably, one or more of the fasteners extend from the underside of the lower support to form a free end.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention adopts the double-layer support to stack the valves, thereby effectively improving the space utilization rate.

2. The valve support is made of nylon, can be produced in large scale by adopting traditional cutting processing, can be rapidly produced by adopting additive manufacturing modes such as 3D printing and the like, and realizes light weight of the valve support.

3. The valve support is coated by the aluminized film, so that the problem of rapid aging of nylon in a space environment is effectively solved, and the valve support is lightened and works on the rail for a long time.

Drawings

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

FIG. 1 is a schematic structural diagram of the present invention.

The figures show that:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

The double-layer valve support of the in-orbit spacecraft is characterized by comprising a lower support 1, an upper support 2 and a clamp 3; the lower support 1, the upper support 2 and the hoop 3 are sequentially overlapped and connected through a fastening piece 5; one or more first installation spaces 6 are formed between the opposite surfaces of the lower support 1 and the upper support 2; one or more second mounting spaces 7 are formed between the opposite faces of the upper support 2 and the yoke 3.

The lower support 1 and the upper support 2 are made of nylon, wherein the nylon can be produced in a large batch by adopting traditional cutting processing, and the nylon can be rapidly produced by adopting additive manufacturing modes such as 3D printing and the like. The outer surfaces of the lower support 1 and the upper support 2 are covered by aluminum-plated thin films 4.

There are one or more arc recess on the side of going up of undersetting 1, there are one or more arc recess on the downside of upper bracket 2, the arc recess one-to-one of side on the position of the arc recess of 2 downside of upper bracket and undersetting 1, has injectd one or more first installation space 6 jointly after the side of going up of undersetting 1 and the downside of upper bracket 2 are connected. The upper side of upper bracket 2 has one or more arc recess, and each arc recess connects respective clamp 3 or connects respectively corresponding part in clamp 3, the upper side of upper bracket 2 has limited one or more second installation space 7 with clamp 3 together.

The upper side surface of the lower support 1 is connected with the lower side surface of the upper support 2; the upper flank of upper bracket 2 is connected with one or more clamp 3, fastener 5 runs through and connects clamp 3, upper bracket 2, undersetting 1. One or more fasteners 5 extend from the lower side of the lower support 1 to form a free end, wherein a gap between the free end and the lower side of the lower support 1 forms a fixing seat mounting space.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A double-layer valve support of an in-orbit spacecraft is characterized by comprising a lower support (1), an upper support (2) and a clamp (3); the lower support (1), the upper support (2) and the hoop (3) are sequentially overlapped and connected through a fastening piece (5); one or more first mounting spaces (6) are formed between the opposite surfaces of the lower support (1) and the upper support (2); one or more second mounting spaces (7) are formed between the opposite surfaces of the upper support (2) and the clamp (3);

one or more arc-shaped grooves are formed in the upper side surface of the lower support (1), one or more arc-shaped grooves are formed in the lower side surface of the upper support (2), the arc-shaped grooves in the lower side surface of the upper support (2) correspond to the arc-shaped grooves in the upper side surface of the lower support (1) in a one-to-one mode, and one or more first installation spaces (6) are jointly defined after the upper side surface of the lower support (1) is connected with the lower side surface of the upper support (2);

the upper side surface of the upper support (2) is provided with one or more arc-shaped grooves, each arc-shaped groove is connected with the corresponding clamp (3) or is connected with one part of the corresponding clamp (3), and the upper side surface of the upper support (2) and the clamps (3) jointly define one or more second installation spaces (7);

the upper side surface of the lower support (1) is connected with the lower side surface of the upper support (2); the side of going up of upper bracket (2) is connected with one or more clamp (3), fastener (5) run through and connect clamp (3), upper bracket (2), undersetting (1).

2. The double-deck valve seat of an in-orbit spacecraft of claim 1, wherein the lower seat (1) and the upper seat (2) are made of nylon.

3. The double-deck valve support of the in-orbit spacecraft of claim 1, wherein the outer surfaces of the lower support (1) and the upper support (2) are covered with an aluminum-plated film (4).

4. The double-deck valve support of an in-orbit spacecraft of claim 1, wherein one or more of the fasteners (5) extend from the underside of the lower support (1) to form free ends.