CN210897577U

CN210897577U - Novel deployable space reflector antenna curved surface structure

Info

Publication number: CN210897577U
Application number: CN201922456959.7U
Authority: CN
Inventors: 刘金国; 赵鹏远; 吴晨晨
Original assignee: Shenyang Institute of Automation of CAS
Current assignee: Shenyang Institute of Automation of CAS
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-06-30
Anticipated expiration: 2029-12-31

Abstract

The utility model belongs to the technical field of can exhibition mechanism and specifically relates to a novel can exhibition space reflection face antenna curved surface structure, including bottom ring, apical ring and connection scissors fork mechanism, wherein the bottom ring includes that a plurality of bottom rings cut fork mechanism, and every bottom ring cuts fork mechanism one side and cuts fork mechanism through connecting articulated seat and adjacent bottom ring and be connected, and the opposite side is cut fork articulated seat and is cut fork mechanism with adjacent bottom ring through the bottom ring and be connected, and the apical ring includes that a plurality of apical rings cut fork mechanism, and cuts the fork articulated seat through the apical ring and connect between the fork mechanism adjacent apical ring, cuts the fork articulated seat through connecting the fork mechanism to every a pair of apical ring that corresponds on articulated seat of connection and the apical ring on the bottom ring and links to each other. The utility model discloses conveniently receive and expand the control, and mechanism rigidity is high, and the difficult emergence of expansion in-process is shaken, can repeatedly receive and expand.

Description

Novel deployable space reflector antenna curved surface structure

Technical Field

The utility model belongs to the technical field of deployable mechanism and specifically relates to a novel deployable space reflection surface antenna curved surface structure.

Background

In recent years, due to the high importance of all countries in the world, the aerospace industry has been developed greatly, and more aerospace engineering can be applied to large-scale on-orbit structures to complete various complex tasks. The large-scale reflector antenna is widely applied to the fields of space detection, radio astronomy, satellite communication and the like, has the characteristics of high gain and narrow beam, but is limited by the size requirement of a launch vehicle, the space reflector antenna is often folded into a smaller volume before being sent into space, and the space reflector antenna is unfolded into the large-scale space reflector antenna after entering the space. The reflecting surface form which is common at present is mostly an elliptic paraboloid. The scissor mechanism can quickly and conveniently realize large-scale conversion of shape and volume, and is widely applied to various fields such as buildings, engineering and design due to light weight and good mobility, but most of researches on the scissor mechanism are limited on a spherical structure at present, so that the application of the scissor mechanism is limited, and the scissor mechanism has huge potential in the aspect of profile design and is not developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel deployable space reflection face antenna curved surface structure, the convenient control of taking up and exhibition, and mechanism rigidity is high, and the difficult emergence of expansion in-process is shaken, can repeatedly take up and exhibit.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a novel can exhibition space plane of reflection antenna curved surface structure, including the end ring, the apical ring cuts fork mechanism with connecting, wherein the end ring includes that a plurality of end rings cut fork mechanism, and every end ring cuts fork mechanism one side and cuts fork mechanism through connecting articulated seat and adjacent end ring and be connected, the opposite side is cut the fork articulated seat through end ring and is cut fork mechanism and be connected with adjacent end ring, the apical ring includes that a plurality of apical rings cut fork mechanism, and cut through apical ring between the fork articulated seat and connect between the fork mechanism, the articulated seat of connecting on the end ring cuts the fork articulated seat through connecting and cuts the fork mechanism with apical ring that corresponds on the apical ring and link to each other.

The length of the bottom ring shear fork mechanism is greater than that of the top ring shear fork mechanism, and the connecting shear fork mechanism is reduced from outside to inside.

And middle hinged plates are arranged between the connecting hinged seat and the top ring scissors hinged seat.

The utility model discloses an advantage does with positive effect:

1. the utility model is a space single-degree-of-freedom mechanism, which can realize the whole folding and unfolding of the mechanism by only 1 motor in principle, and is convenient to control;

2. the utility model is provided with the top ring and the bottom ring which are in a space closed loop structure, the rigidity of the mechanism in the process of expansion and after expansion is high, the vibration is not easy to occur in the process of expansion, and the utility model is more suitable for being used as the expansion structure of a large-caliber antenna;

3. all the connecting hinges of the utility model do not need to be provided with elastic elements to store elastic potential energy, so that no obvious impact vibration exists in the unfolding process;

4. the utility model discloses can drive and realize repeated exhibition of receiving and releasing.

Drawings

Figure 1 is a schematic structural diagram of the present invention,

figure 2 is an enlarged view at a in figure 1,

fig. 3 is a schematic view of the working state model of the present invention.

Wherein, 1 is connecting scissors fork mechanism, 2 is the bottom ring, 201 is bottom ring scissors fork mechanism, 202 is the articulated seat of bottom ring scissors fork, 203 is connecting articulated seat, 3 is the apical ring, 301 is top ring scissors fork mechanism, 302 is the articulated seat of apical ring scissors fork, 4 is middle articulated slab.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a bottom ring 2, apical ring 3 and connection are cut fork mechanism 1, wherein bottom ring 2 includes that a plurality of bottom rings cut fork mechanism 201, and every bottom ring is cut fork mechanism 201 one side and is cut fork mechanism 201 through connecting articulated seat 203 and adjacent bottom ring and be connected, the opposite side is cut fork articulated seat 202 and is cut fork mechanism 201 with adjacent bottom ring through bottom ring and be connected, apical ring 3 includes that a plurality of apical rings cut fork mechanism 301, and cut through apical ring between the fork mechanism 301 and cut the fork articulated seat 302 and connect, every pair of apical ring that corresponds on articulated seat 203 of every pair of apical ring is cut fork articulated seat 302 and is cut fork mechanism 1 through connecting on the bottom ring 2 and cut fork mechanism 1.

As shown in fig. 1, the length of the bottom ring scissors mechanism 201 is greater than that of the top ring scissors mechanism 301, and the connecting scissors mechanism 1 is reduced in diameter from outside to inside.

As shown in fig. 2, an intermediate hinge plate 4 is provided between the connecting hinge seat 203 and the top ring scissors hinge seat 302 for connecting with the corresponding connecting scissors mechanism 1.

The utility model discloses a theory of operation does:

as shown in fig. 1, when the connecting scissors mechanism 1 is contracted, the top ring 3 can be retracted into the bottom ring 2, and the bottom ring 2 and the top ring 3 can be further contracted, as shown in fig. 3, when the utility model is expanded, the top ring 3 is expanded and raised, the bottom ring 2 is also expanded, and simultaneously, each connecting scissors mechanism 1 can form an approximate arc surface shape to support the top ring 3. Because the utility model relates to a for space single degree of freedom mechanism, only need 1 motor just can realize the whole exhibition of taking up of mechanism in principle, convenient control.

Claims

1. The utility model provides a novel deployable space reflector antenna curved surface structure which characterized in that: including end ring (2), apical ring (3) and connection are cut fork mechanism (1), wherein end ring (2) are cut fork mechanism (201) including a plurality of end rings, and every end ring is cut fork mechanism (201) one side and is cut fork mechanism (201) through connecting articulated seat (203) and adjacent end ring and be connected, the opposite side is cut fork articulated seat (202) and is cut fork mechanism (201) through end ring and be connected with adjacent end ring, apical ring (3) are cut fork mechanism (301) including a plurality of apical rings, and cut fork articulated seat (302) through apical ring between the fork mechanism (301) and connect between the adjacent apical ring, connect articulated seat (203) on end ring (2) and apical ring (3) and go up corresponding apical ring and cut fork articulated seat (302) and link to each other through connecting and cutting fork mechanism (1).

2. The novel deployable spatial reflector antenna curved surface structure of claim 1, wherein: the length of the bottom ring shear fork mechanism (201) is greater than that of the top ring shear fork mechanism (301), and the connecting shear fork mechanism (1) is reduced from outside to inside.

3. The novel deployable spatial reflector antenna curved surface structure of claim 1, wherein: and middle hinged plates (4) are arranged between the connecting hinged seat (203) and the top ring scissors fork hinged seat (302).