CN110444852A - A kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device - Google Patents
A kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device Download PDFInfo
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- CN110444852A CN110444852A CN201910707896.XA CN201910707896A CN110444852A CN 110444852 A CN110444852 A CN 110444852A CN 201910707896 A CN201910707896 A CN 201910707896A CN 110444852 A CN110444852 A CN 110444852A
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- rib
- antenna
- straight pin
- unfolded
- limiting device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
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Abstract
Precisely it is unfolded the invention discloses the umbrella deployable antenna rib that easily assembles of one kind and limiting device, it includes hub base, straight pin, tabletting, fastening screw, straight pin is mounted in the pin hole of hub base, it is contacted with hub base line, tabletting is used to push down the both ends of straight pin, fastening screw and hub base are connected through a screw thread to fix tabletting, compress straight pin, and the aperture at four angles of hub base is used to fix with antenna deployment mechanism.The present invention provides a kind of antenna rib easily assembled for umbrella deployable antenna and precisely be unfolded and limiting device, is able to achieve antenna rib using straight pin axis as accurate expansion, the limit of rotary shaft, and have the advantages that easily assembly, processing technology height and be unfolded steady.
Description
Technical field
The invention belongs to satellite antenna technical fields, and in particular to the umbrella that one of satellite antenna technical field is easily assembled
Shape deployable antenna rib is precisely unfolded and limiting device, can be applied in the design of high-precision umbrella deployable antenna.
Background technique
The fast development of Space Science and Technology proposes increasingly higher demands, umbrella deployable antenna to spaceborne deployable antenna
In terms of storing the shape face under ratio, surface density, expanding performance and On orbit thermal environment, with advantage outstanding, by
The highest attention and research extensively of numerous international aerospace research mechanisms.
The expansion of umbrella deployable antenna rib is the key device for connecting unfolding mechanism and antenna structure with limiting device, is umbrella
Shape antenna rib can stablize the premise of expansion and precise positioning, and reliability determines the success or failure of antenna expansion.
2016, California Institute of Technology jet propulsion laboratory Jonathan F. Sauder et al. disclosed a kind of umbrella
The expansion of deployable antenna rib and limiting device Jonathan F. Sauder, Nacer Chahat, Richard Hodges,
Eva Peral, and Mark W. Thomson, Designing, Building, and Testing a Mesh Ka-
band Parabolic Deployable Antenna (KaPDA) for CubeSats, 54th AIAA Aerospace
Sciences Meeting, 4-8 January 2016, San Diego, California, USA.The device is in installation day
When line rib, need first to be installed antenna root rib and sharp rib, then antenna rib is mounted on by tooling the root hinge of wheel hub
On；The expansion of antenna rib and limiting device that the document proposes, need additional tooling during installation, increase assembly number, dress
With difficulty and rigging error.
Many and diverse therefore, it is necessary to solve above-mentioned installation step, assembly difficulty is big, and the precision of antenna is not easy to guarantee after the assembly is completed
The problem of, propose the new a kind of expansion of umbrella deployable antenna rib and limiting device.
Summary of the invention
It is an object of the invention to overcome the shortcomings of the above prior art, a kind of umbrella deployable antenna easily assembled is proposed
Rib is precisely unfolded and limiting device, and to solve current antenna rib expansion, installation step is many and diverse during installation with limiting device, dress
Big with difficulty, the precision of antenna is not easy the problem of guaranteeing and needing additional tooling after the assembly is completed.
The technical scheme is that a kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device, packet
Include hub base, straight pin, tabletting, fastening screw, it is characterised in that: the straight pin is mounted on the pin groove of hub base
In；The both ends of the fixed straight pin of the tabletting；The holding screw is spirally connected with hub base, compresses cylinder by tabletting
Pin.
The unfolding mechanism of the hub base and deployable antenna connects, and Feed Horn is concentric is fixedly connected, with
The Waveguide coaxial heart is slidably connected.
It is hinged between the straight pin and antenna rib.
The hub base includes cotter way, threaded hole, rib slot, unfolding mechanism hole, feed hole, waveguide aperture；Cotter way has three
Ten, 30 cotter way structures are identical, and 30 cotter ways are evenly arranged on cylinder boss, and depth is the diameter of straight pin；30 pairs
Threaded hole is evenly arranged on the middle position of two adjacent rib slots respectively, and outer ring threaded hole is slightly larger than inside；30 rib groove widths are day
Line rib thickness, each rib slot are opened in the middle position of cotter way；The unfolding mechanism hole at four angles is used to the expansion with deployable antenna
Mechanism connection；Two feed holes by screw with horn feed is concentric is fixedly connected；The waveguide aperture and the Waveguide coaxial heart at center
It is slidably connected.
The cotter way width is straight pin diameter, and both ends are semicircle.
The rib slot is the through-hole groove by linear cutter, and side is there are transition radian, two sides of boss and one
Front is plane, and front is the positioning surface of antenna rib, stops the rotation of antenna rib expansion direction, side is for preventing antenna rib
Roll to each side.
The antenna rib is fixed with cylinder boss in root two sides, cylinder boss when hub base rises, on root rib
It interacts with top board, completes the expansion process of antenna；The positioning surface of antenna rib rib slot is matched with pressing plate to stop antenna
The rotation of rib, rib slot two sides are used to stop rolling to each side for antenna rib, the positioning after completing the expansion of antenna rib.
Beneficial effects of the present invention: the present invention is by the antenna rib of umbrella antenna and hub base, straight pin, tabletting, tightening
Screw combines, and completes the expansion and positioning of antenna rib.It has the advantage that compared with prior art
1. the root rib of antenna is directly connected with straight pin by the present invention in the installation of antenna rib, then is incited somebody to action by tabletting, holding screw
Straight pin is fixed in the cotter way of hub base, simplifies installation step, reduces rigging error, and installation process is not necessarily to volume
Outer tooling has preferable economy.
2. present invention junction in the installation process of antenna rib only exists threaded connection, processability of product structure is preferable, can
By property height.Straight pin stabilization is installed in cotter way by tabletting by holding screw, and antenna root rib two sides are deepened by hub base
Rib slot is fixed, and ensure that the stability of antenna expansion process.
Detailed description of the invention
Below with reference to embodiment attached drawing, the present invention will be further described:
Fig. 1 is the overall schematic of apparatus of the present invention；
Fig. 2 is the decomposition diagram of apparatus of the present invention；
Fig. 3 is that the single rib of apparatus of the present invention collapses state schematic diagram；
Fig. 4 is the single rib deployed condition schematic diagram of apparatus of the present invention；
Fig. 5 is the hub base schematic diagram of apparatus of the present invention；
Fig. 6 is that inventive antenna rib and top board cooperate schematic diagram.
Description of symbols: 1, hub base；2, straight pin；3, tabletting；4, holding screw hub；5, Feed Horn；6, wave
It leads；7, antenna rib；8, cylinder boss；9, top board；11, cotter way；12, threaded hole；13, rib slot；14, unfolding mechanism hole；15, it presents
Source aperture；16, waveguide aperture.
Specific embodiment
A kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device, referring to Fig.1, Fig. 2, Fig. 3 and Fig. 4,
Fig. 3 and Fig. 4 is respectively that single antenna rib 7 collapses and fully unfolded position schematic diagram completely around straight pin 2.Including hub base 1,
Straight pin 2, tabletting 3, fastening screw 4.
It is mesoporous tetragonal structure in hub base 1 referring to Fig. 5, surrounding is opened among four Quad Sides there are four Quad Sides
Hole, hub base 1 specifically include cotter way 11, threaded hole 12, rib slot 13, unfolding mechanism hole 14, feed hole 15, waveguide aperture 16；Three
Ten identical cotter ways 11 are evenly arranged on cylinder boss, and depth is the diameter of straight pin 2；30 pairs of threaded holes 12 are evenly arranged on two respectively
The middle position of adjacent rib slot 13, external screw-thread hole is slightly larger than inside；30 13 width of rib slot are 7 thickness of antenna rib, each
Rib slot 13 is in the middle position of cotter way 11；The unfolding mechanism hole 14 at four angles is used to and the fixed company of the unfolding mechanism of deployable antenna
It connects；Two feed holes 15 by screw with horn feed 5 is concentric is fixedly connected；The waveguide aperture 16 at center and waveguide 6 are concentric
It is slidably connected；11 width of cotter way is 2 diameter of straight pin, and both ends are semicircle；The rib slot 13 is added by wire cutting
The through-hole groove of work, there are transition radians for side, and two sides of boss and a front are plane, and front is determining for antenna rib 7
Plane stops the rotation of 7 expansion direction of antenna rib, and side is for preventing rolling to each side for antenna rib 7.
As shown in Fig. 2, straight pin 2 is mounted in the pin groove of hub base 1；The two of the fixed straight pin 2 of the tabletting 3
End；The holding screw 4 and 1 screw connection of hub base, straight pin 2 is compressed by tabletting 3.
As shown in Figure 3 and Figure 4, the hub base 1 is connect with the unfolding mechanism of deployable antenna, with Feed Horn 5
Concentric to be fixedly connected, and waveguide 6 is concentric is slidably connected.It is hinged between straight pin 2 and antenna rib 7.
Referring to Fig. 6, the antenna rib 7 is fixed with cylinder boss 8 in root two sides, when hub base 1 rises, on root rib
Cylinder boss and top board 9 interact, complete the expansion process of antenna；The positioning surface of 7 rib slot 13 of antenna rib and 8 phase of pressing plate
Cooperate the rotation to stop antenna rib, 13 two sides of rib slot are used to stop rolling to each side for antenna rib 7, complete antenna rib 7 and are unfolded
Positioning afterwards.
To sum up, straight pin is mounted in the pin hole of hub base in the present invention, is contacted with hub base line, tabletting is used to
The both ends of straight pin are pushed down, fastening screw is threadedly coupled for fixing tabletting with hub base, compresses straight pin, realize antenna rib
Stablize expansion and high-precision limit using straight pin axis as rotary shaft, the aperture at four angles of hub base is used to and antenna exhibition
Opening mechanism is fixed, and the aperture at center is connect with Feed Horn, waveguide.
Since the root rib of antenna is directly connected with straight pin by the present invention when antenna rib is installed, then pass through tabletting, tightening
Straight pin is fixed in the cotter way of hub base by screw, simplifies installation step, reduces rigging error, and installation process
Without additional tooling, there is preferable economy.
Present invention junction in the installation process of antenna rib only exists threaded connection, and processability of product structure is preferable, reliably
Property it is high.Straight pin stabilization is installed in cotter way by tabletting by holding screw, the intensification that antenna root rib two sides pass through hub base
Rib slot is fixed, the stability after ensure that antenna expansion process and expansion.
Therefore, the present invention solves that the expansion of existing antenna rib is many and diverse with the installation step of limiting device, and assembly difficulty is big, fills
It is not easy the problems such as guaranteeing with the precision for completing aft antenna, with high-precision, easy assembly, processing technology is high and structure is reliably excellent
Point can be applied in the design of high-precision umbrella deployable antenna.
There is no the part described in detail to belong to the well known conventional means of the industry in present embodiment, does not chat one by one here
It states.The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all and sheet
Invent it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (7)
1. the umbrella deployable antenna rib that one kind is easily assembled precisely is unfolded and limiting device, including hub base (1), straight pin
(2), tabletting (3), fastening screw (4), it is characterised in that: the straight pin (2) is mounted on the pin groove of hub base (1)
In；The both ends of the tabletting (3) fixed straight pin (2)；The holding screw (4) is spirally connected with hub base (1), passes through pressure
Piece (3) compresses straight pin (2).
2. the umbrella deployable antenna rib that one kind according to claim 1 is easily assembled precisely is unfolded and limiting device, special
Sign is: the hub base (1) is connect with the unfolding mechanism of deployable antenna, even with the concentric fixation of Feed Horn (5)
It connects, and waveguide (6) is concentric is slidably connected.
3. the umbrella deployable antenna rib that one kind according to claim 1 is easily assembled precisely is unfolded and limiting device, special
Sign is: hinged between the straight pin (2) and antenna rib (7).
4. the umbrella deployable antenna rib that one kind according to claim 1 is easily assembled precisely is unfolded and limiting device, special
Sign is: the hub base (1) includes cotter way (11), threaded hole (12), rib slot (13), unfolding mechanism hole (14), feed
Hole (15), waveguide aperture (16)；Cotter way (11) has 30, and 30 cotter way (11) structures are identical, and 30 cotter ways (11) are uniformly distributed
On cylinder boss, depth is the diameter of straight pin (2)；30 pairs of threaded holes (12) are evenly arranged on two adjacent rib slots (13) respectively
Middle position, outer ring threaded hole is slightly larger than inside；30 rib slot (13) width are antenna rib (7) thickness, each rib slot (13)
It is opened in the middle position of cotter way (11)；The unfolding mechanism hole (14) at four angles is used to connect with the unfolding mechanism of deployable antenna；
Two feed holes (15) by screw with horn feed (5) is concentric is fixedly connected；The waveguide aperture (16) at center and waveguide (6) are same
Axle center is slidably connected.
5. the umbrella deployable antenna rib that one kind according to claim 4 is easily assembled precisely is unfolded and limiting device, special
Sign is: cotter way (11) width is straight pin (2) diameter, and both ends are semicircle.
6. the umbrella deployable antenna rib that one kind according to claim 4 is easily assembled precisely is unfolded and limiting device, special
Sign is: the rib slot (13) is the through-hole groove by linear cutter, and there are transition radian, two sides of boss and one for side
A front is plane, and front is the positioning surface of antenna rib (7), stops the rotation of antenna rib (7) expansion direction, side is for hindering
Only antenna rib is rolled to each side.
7. the umbrella deployable antenna rib that one kind according to claim 3 is easily assembled precisely is unfolded and limiting device, special
Sign is: the antenna rib (7) is fixed with cylinder boss (8) in root two sides, circle when hub base (1) rises, on root rib
Column boss and top board (9) interact, and complete the expansion process of antenna；The positioning surface and pressing plate of antenna rib (7) rib slot (13)
(8) rotation to stop antenna rib is matched, rib slot (13) two sides are used to stop rolling to each side for antenna rib (7), complete day
Positioning after line rib (7) expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707896.XA CN110444852A (en) | 2019-08-01 | 2019-08-01 | A kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707896.XA CN110444852A (en) | 2019-08-01 | 2019-08-01 | A kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110444852A true CN110444852A (en) | 2019-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910707896.XA Pending CN110444852A (en) | 2019-08-01 | 2019-08-01 | A kind of umbrella deployable antenna rib easily assembled is precisely unfolded and limiting device |
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| CN (1) | CN110444852A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994118A (en) * | 2019-11-18 | 2020-04-10 | 西安电子科技大学 | Rope-driven umbrella-shaped Cassegrain antenna main and auxiliary surface stable unfolding mechanism |
| CN113206359A (en) * | 2021-03-27 | 2021-08-03 | 西安电子科技大学 | Central hub coaxially connected with waveguide feed source and application |
| CN113381161A (en) * | 2021-05-24 | 2021-09-10 | 西安电子科技大学 | Single-folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846044A (en) * | 2016-04-07 | 2016-08-10 | 西安交通大学 | Foldable expandable umbrella antenna structure framework and expansion method |
| WO2017151689A1 (en) * | 2016-02-29 | 2017-09-08 | L'garde, Inc. | Compactable rf membrane antenna |
-
2019
- 2019-08-01 CN CN201910707896.XA patent/CN110444852A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017151689A1 (en) * | 2016-02-29 | 2017-09-08 | L'garde, Inc. | Compactable rf membrane antenna |
| CN105846044A (en) * | 2016-04-07 | 2016-08-10 | 西安交通大学 | Foldable expandable umbrella antenna structure framework and expansion method |
Non-Patent Citations (2)
| Title |
|---|
| NACER CHAHAT: "《The Deep-Space Network Telecommunication CubeSat Antenna: Using the deployable Ka-band mesh reflector antenna》", 《 IEEE ANTENNAS AND PROPAGATION MAGAZINE》 * |
| 王垒: "《形面可调抛物面展开天线设计与分析》", 《中国优秀硕士学位论文数据库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994118A (en) * | 2019-11-18 | 2020-04-10 | 西安电子科技大学 | Rope-driven umbrella-shaped Cassegrain antenna main and auxiliary surface stable unfolding mechanism |
| CN110994118B (en) * | 2019-11-18 | 2021-07-02 | 西安电子科技大学 | Rope-driven umbrella-shaped Cassegrain antenna main and auxiliary surface stable unfolding mechanism |
| CN113206359A (en) * | 2021-03-27 | 2021-08-03 | 西安电子科技大学 | Central hub coaxially connected with waveguide feed source and application |
| CN113381161A (en) * | 2021-05-24 | 2021-09-10 | 西安电子科技大学 | Single-folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly |
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Application publication date: 20191112 |