CN104466341B - Spherical antenna supporting mechanism - Google Patents
Spherical antenna supporting mechanism Download PDFInfo
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- CN104466341B CN104466341B CN201410538119.4A CN201410538119A CN104466341B CN 104466341 B CN104466341 B CN 104466341B CN 201410538119 A CN201410538119 A CN 201410538119A CN 104466341 B CN104466341 B CN 104466341B
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- scissor
- folding
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- variation
- hinged
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Abstract
The invention discloses a spherical antenna supporting mechanism. An existing metal mesh surface type antenna supporting mechanism is low in rigidity, unit mechanisms are complex and multiple folding and unfolding can not be achieved. A center sliding block is in threaded connection with a sliding lead screw; ordinary scissors poles at one ends of five first altered scissors fork assemblies are hinged to a center fixing block, limiting scissors poles at the same ends are hinged to the center sliding block, and ordinary scissors poles and limiting scissors poles at the other ends are hinged with first-level folding and unfolding hinged columns; one ordinary scissors fork unit of each second-level folding and unfolding mechanism is hinged to a first-level folding and unfolding hinged column on one first altered scissors fork assembly, one second altered scissors fork unit of each second-level folding and unfolding mechanism is spherically hinged to the first-level folding and unfolding hinged column on another adjacent first altered scissors fork assembly, and the other second altered scissors fork unit of each second-level folding and unfolding mechanism is hinged to another ordinary scissors fork unit of the adjacent second-level folding and unfolding mechanisms through two second-level folding and unfolding hinged columns. The spherical antenna supporting mechanism can be folded and unfolded repeatedly, and is good in rigidity and high in unfolding precision.
Description
Technical field
The invention belongs to aerospace field, it is related to a kind of facial antenna supporting mechanism of wire netting and in particular to a bulb
Surface antenna supporting mechanism.
Background technology
Space Deployable antenna is the important component part of spacecraft structure, is that the important physical of directly execution satellite function is put down
Platform, is all widely used in fields such as mobile communication, radio astronomy, earth observation and military surveillances.Wherein, wire netting
No matter surface antenna is respectively provided with preferable characteristic at storage rate, surface accuracy, the expansion aspect such as bore and operating frequency, has been widely used
In each generic task of space flight.Antenna supporting mechanism is the backrest part of space deployable antenna, for supporting metallic reflection net, guarantor
Hold structure precision and maintain structural stability.At present, to there is rigidity relatively low, basic for the facial antenna supporting mechanism of existing wire netting
Cellular construction is complicated, processing, manufacture, assembling and precision regulating cycle long, and the operation on orbit stage cannot realize repeatedly folding and
The defects such as expansion.
Content of the invention
The purpose of the present invention is for the deficiencies in the prior art, provides a kind of spherical antenna supporting mechanism, this spherical antenna
Supporting mechanism can achieve and repeats folding exhibition, fold than big, integral rigidity is good, it is high to repeat precision of expansion；And can edge according to actual needs
Sphere extends folding and unfolding mechanism.
The present invention includes drive mechanism, one-level folding and unfolding mechanism, one-level folding exhibition articulated column, two grades of folding and unfolding mechanism and two grades of folding exhibitions
Articulated column.
Described drive mechanism includes lead screw, harmonic speed reducer, motor and spacecraft celestial body connecting plate；Described electricity
Machine is fixed on spacecraft celestial body connecting plate, and is connected with brake；The output shaft of motor is solid with the input of harmonic speed reducer
Fixed；The outfan of described harmonic speed reducer and lead screw are fixed.
Described one-level folding and unfolding mechanism includes central slider, center fixed block and the first variation scissor assembly；In described
Heart slide block is threadeded with lead screw, and center fixed block and lead screw are fixed；The first described variation scissor assembly includes
The two first variation scissor units that end is hinged；First variation scissor unit include middle part be hinged commonly cut bar and limit
Bar is cut in position, and spacing bar of cutting is provided with limited block；Five first variation scissor assemblies are uniformly distributed along the circumference；Each first variation scissor assembly
The common Jian Ganyu center fixed block of one end is hinged, and with one end spacing, to cut bar hinged with central slider；Each first variation is cut
Fork the assembly other end commonly cut bar and spacing cut bar be all hinged with one-level folding exhibition articulated column；Each is hinged on commonly cuts on bar
One-level folding exhibition articulated column pass through two skew cables respectively be hinged on adjacent both sides first the spacing of scissor assembly that make a variation and cut on bar
One-level folding exhibition articulated column connect.
Two grades of described folding and unfolding mechanism include center articulated column, and the four two grades of scissor assemblies and two being uniformly distributed along the circumference
Individual second variation scissor assembly；Two grades of described scissor assemblies include two common scissor units that end is hinged；Commonly cut
Fork unit includes middle part be hinged two and commonly cuts bar；The second described variation scissor assembly includes the mutual ball-joint in end
Common scissor unit and the second variation scissor unit；Second variation scissor unit includes that arranged in a crossed manner two are scalable to cut bar group
Part；Described scalable bar assembly of cutting includes sleeve, spring and sliding bar；Described sliding bar is with sleeve by sliding pair even
Connect；Described spring is arranged in sleeve, and one end is fixed with sleeve, and the other end is fixed with sliding bar；On the articulated column of Liang Ge center
Lower setting, and the common scissor unit with four two grades scissor assembly one end and two second variation commonly the cutting of scissor assemblies
Fork unit is all hinged.
Five two grades of folding and unfolding mechanism are uniformly distributed along the circumference；Two grades of scissor assemblies that each two grades of folding and unfolding mechanism is arranged inwardly
The common scissor unit of the other end is hinged column articulated with the one-level folding exhibition on one first variation scissor assembly；The exhibition of each two grades foldings
Second variation scissor unit of the one second variation scissor assembly that mechanism is arranged inwardly is cut with another adjacent first variation
One-level folding exhibition articulated column ball-joint on fork assembly；Each two grades of folding and unfolding mechanism is arranged on another the second variation scissor of side
Second variation scissor unit of assembly is hinged column articulated with two two grades folding exhibitions；Two two grades foldings in each two grades of folding and unfolding mechanism
Exhibition articulated column is arranged on the common scissor unit of another two grades of scissor assembly other ends of side with two neighboring stages folding and unfolding mechanism
Hinged, and connected with two adjacent one-level folding exhibition articulated columns respectively by two skew cables being crisscross arranged；Each two grades foldings
The common scissor unit of two grades of scissor assembly other ends of other two that exhibition mechanism is arranged outwardly passes through two being crisscross arranged respectively
Skew cables are connected with adjacent two two grades folding exhibition articulated columns；Two two grades of scissors that each two grades of folding and unfolding mechanism is arranged outwardly
Two skew cables passing through between the common scissor unit of the assembly other end to be crisscross arranged connect.
The common scissor unit of the two two grades scissor assembly other ends that each two grades of folding and unfolding mechanism is arranged outwardly also can be opened
Put setting, for connecting three-level folding and unfolding mechanism.
Beneficial effects of the present invention:
1st, the present invention is driven by single power source, and overall structure is spherical symmetrical, using simple, can achieve and repeats folding exhibition,
And can globally extend folding and unfolding mechanism according to actual needs further.
2nd, small volume after the present invention draws in, light weight, after launching and drawing in, the folding ratio of volume is big, and about 40～50.
3rd, the brake of the present invention and spacing cut the effect that bar plays limitation locking, and combine suspension cable so that overall just
Degree preferably, repeats precision of expansion high.
4th, by the use of scissor-type mechanism as elementary cell, light weight, structure are simple for the present invention, processing, manufacture, assembling and essence
Degree regulating cycle is short.
Brief description
Overall structure axonometric chart when Fig. 1 launches for the present invention；
Overall structure axonometric chart when Fig. 2 draws in for the present invention；
Fig. 3 is the partial enlarged drawing at a in Fig. 1；
Fig. 4 is the axonometric chart of drive mechanism in the present invention；
Fig. 5 is the transmission principle figure of drive mechanism in the present invention；
Fig. 6 is axonometric chart when one-level folding and unfolding mechanism is launched in the present invention；
Fig. 7 is axonometric chart when one-level folding and unfolding mechanism is drawn in the present invention；
Fig. 8 is the assembling stereogram of the first variation scissor assembly and central slider and center fixed block in the present invention；
Fig. 9 is axonometric chart when two grades of folding and unfolding mechanism are launched in the present invention；
Figure 10 is axonometric chart when two grades of folding and unfolding mechanism are drawn in the present invention；
Figure 11 is the assembling stereogram of two grades of scissor assemblies and center articulated column in the present invention；
Figure 12 is the structural perspective of common scissor unit；
Figure 13 is the scalable structural perspective cutting bar assembly in the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in Figure 1,2 and 3, a kind of spherical antenna supporting mechanism, including drive mechanism, one-level folding and unfolding mechanism 1, one-level folding
Exhibition 7, two grades of folding and unfolding mechanism 10 of articulated column and two grades of folding exhibition articulated columns 11.
As shown in Fig. 1,2,4 and 5, drive mechanism includes lead screw 2, harmonic speed reducer 3, motor 5 and spacecraft celestial body
Connecting plate 6；Motor 5 is fixed on spacecraft celestial body connecting plate 6, and is connected with brake 4；The output shaft of motor 5 and harmonic wave subtract
The input of fast device 3 is fixed；The outfan of harmonic speed reducer 3 is fixing with lead screw 2.
As shown in Fig. 1,4,6,7 and 8, one-level folding and unfolding mechanism 1 includes central slider 1-1, center fixed block 1-2 and first change
Different scissor assembly；Central slider 1-1 is threadeded with lead screw 2, and center fixed block 1-2 is fixing with lead screw 2；First change
Different scissor assembly includes the two first variation scissor units that end is hinged；First variation scissor unit includes middle part and is hinged
Commonly cut bar 1-3 and spacing cut bar 1-4, the spacing bar 1-4 that cuts is provided with limited block；Five first variation scissor assemblies are circumferentially equal
Cloth；Each first variation scissor assembly one end commonly cut that Gan1-3Yu center fixed block 1-2 is hinged, spacing with one end cuts bar
1-4 is hinged with central slider 1-1；The bar 1-3 and spacing bar 1-4 that cuts that commonly cuts of each first variation scissor assembly other end all cuts with scissors
It is connected to one-level folding exhibition articulated column 7；Each is hinged on the one-level folding exhibition articulated column 7 commonly cutting on bar 1-3 and passes through 8 points of two skew cables
Do not connect with the spacing one-level folding exhibition articulated column 7 cut on bar 1-4 being hinged on adjacent both sides first variation scissor assembly.Center is slided
Block 1-1 slides with respect to center fixed block 1-2, thus realize one-level folding and unfolding mechanism 1 and folding and launch, is folding and is launching process
In limitation locking is carried out by brake 4 and the spacing limited block cutting bar 1-4.
As shown in Fig. 1,2,9,10,11,12 and 13, two grades of folding and unfolding mechanism 10 include center articulated column 9, and circumferentially equal
Four two grades of scissor assemblies 13 of cloth and two second variation scissor assemblies；Two grades of scissor assemblies 13 include two that end is hinged
Individual common scissor unit 14；Common scissor unit includes two that middle part is hinged and commonly cuts bar 1-3；Second variation scissor assembly
Common scissor unit 14 including the mutual ball-joint in end and the second variation scissor unit；Second variation scissor unit includes intersecting
Scalable cut bar assembly 12 for two of setting；Scalable bar assembly 12 of cutting includes sleeve 12-1, spring 12-2 and sliding bar 12-3；
Sliding bar 12-3 is connected by sliding pair with sleeve 12-1；Spring 12-2 is arranged in sleeve 12-1, and one end is solid with sleeve 12-1
Fixed, the other end is fixed with sliding bar 12-3；Liang Ge center articulated column 9 is setting up and down, and with four two grades scissor assembly 13 one end
Common scissor unit and two second variation scissor assemblies common scissor unit all hinged.
As shown in Figure 1,2 and 3, five two grades of folding and unfolding mechanism 10 are uniformly distributed along the circumference；Each two grades of folding and unfolding mechanism is arranged inwardly
The common scissor unit of one two grades scissor assembly 13 other ends with one first variation scissor assembly on one-level folding exhibition hinge
Connect post 7 hinged；Second variation scissor unit of arrange inwardly one second variation scissor assembly of each two grades of folding and unfolding mechanism with
One-level folding exhibition articulated column 7 ball-joint on another adjacent the first variation scissor assembly；Each two grades of folding and unfolding mechanism is arranged on
Second variation scissor unit of another the second variation scissor assembly of side is hinged with two two grades folding exhibition articulated columns 11；Each
Two two grades folding exhibition articulated columns 11 in two grades of folding and unfolding mechanism and two neighboring stages folding and unfolding mechanism are arranged on another two grades of side
The common scissor unit of scissor assembly 13 other end is hinged, and by two skew cables 8 that are crisscross arranged respectively with adjacent two
Individual one-level folding exhibition articulated column 7 connects；Two grades of scissor assembly 13 other ends of the other two that each two grades of folding and unfolding mechanism is arranged outwardly
Common scissor unit pass through two skew cables 8 that are crisscross arranged respectively and open up articulated columns 11 with adjacent two two grades foldings to connect；
Pass through staggered between the common scissor unit of two two grades scissor assembly 13 other ends that each two grades of folding and unfolding mechanism is arranged outwardly
Two skew cables 8 of setting connect.Two two grades scissor assembly 13 other ends that each two grades of folding and unfolding mechanism is arranged outwardly general
Logical scissor unit also can open setting, for connecting three-level folding and unfolding mechanism.
The operation principle of this spherical antenna supporting mechanism:
During this spherical antenna supporting mechanism launches, motor 5 drives lead screw 2 to rotate forward, and central slider 1-1 is being slided
Center fixed block 1-2 is close on leading screw 2 move, the first variation scissor assembly outwards launches so that one-level folding exhibition articulated column 7 is outside
Mobile, one-level folding exhibition articulated column 7 orders about five two grades of folding and unfolding mechanism 10 to launch；Brake 4 and the spacing bar 1-4 that cuts play limiting lock
Fixed effect, when fully deployed, what the spacing limited block cutting bar 1-4 withstood the first variation scissor unit commonly cuts bar 1-3, owns
Suspension cable 8 is in tensioning state, makes this spherical antenna supporting mechanism become a rigid structure.This spherical antenna supporting mechanism is rolled over
When folded, motor 5 drives lead screw 2 to invert.
Claims (2)
1. a kind of spherical antenna supporting mechanism, including drive mechanism, one-level folding and unfolding mechanism, one-level folding exhibition articulated column, the exhibition of two grades of foldings
Mechanism and two grades folding exhibition articulated columns it is characterised in that:
Described drive mechanism includes lead screw, harmonic speed reducer, motor and spacecraft celestial body connecting plate；Described motor is solid
It is scheduled on spacecraft celestial body connecting plate, and be connected with brake；The output shaft of motor is fixed with the input of harmonic speed reducer；Institute
State the outfan of harmonic speed reducer and lead screw is fixed；
Described one-level folding and unfolding mechanism includes central slider, center fixed block and the first variation scissor assembly；Described center is slided
Block is threadeded with lead screw, and center fixed block and lead screw are fixed；The first described variation scissor assembly includes end
Two first variation scissor units being hinged；What the first variation scissor unit included that middle part is hinged commonly cuts bar and spacing cuts
Bar, spacing bar of cutting is provided with limited block；Five first variation scissor assemblies are uniformly distributed along the circumference；Each first variation scissor assembly one end
Common Jian Ganyu center fixed block hinged, with one end spacing, to cut bar hinged with central slider；Each first variation scissor group
The part other end commonly cut bar and spacing cut bar be all hinged with one-level folding exhibition articulated column；Each is hinged on the one-level commonly cutting on bar
Folding exhibition articulated column pass through two skew cables respectively be hinged on adjacent both sides first make a variation scissor assembly spacing cut on bar one
Level folding exhibition articulated column connects；
Two grades of described folding and unfolding mechanism include center articulated column, and four two grades of scissor assemblies being uniformly distributed along the circumference and two
Two variation scissor assemblies；Two grades of described scissor assemblies include two common scissor units that end is hinged；Common scissor list
Commonly cut bar for two be hinged in the middle part of unit's inclusion；The second described variation scissor assembly includes the common of the mutual ball-joint in end
Scissor unit and the second variation scissor unit；Second variation scissor unit includes that arranged in a crossed manner two are scalable to cut bar assembly；
Described scalable bar assembly of cutting includes sleeve, spring and sliding bar；Described sliding bar is connected by sliding pair with sleeve；Institute
The spring stated is arranged in sleeve, and one end is fixed with sleeve, and the other end is fixed with sliding bar；Divide on the articulated column of Liang Ge center
Put, and the common scissor list of the common scissor unit with four two grades scissor assembly one end and two second variation scissor assemblies
Unit is all hinged；
Five two grades of folding and unfolding mechanism are uniformly distributed along the circumference；Two grades of scissor assemblies that each two grades of folding and unfolding mechanism is arranged inwardly are another
The common scissor unit at end is hinged column articulated with the one-level folding exhibition on one first variation scissor assembly；Each two grades of folding and unfolding mechanism
Second variation scissor unit of the one second variation scissor assembly arranging inwardly and another adjacent the first variation scissor group
One-level folding exhibition articulated column ball-joint on part；Each two grades of folding and unfolding mechanism is arranged on another the second variation scissor assembly of side
Second variation scissor unit with two two grades folding open up hinged column articulated；Two two grades folding exhibition hinges in each two grades of folding and unfolding mechanism
The common scissor unit connecing another two grades of scissor assembly other ends that post is arranged on side with two neighboring stages folding and unfolding mechanism is hinged,
And connected with two adjacent one-level folding exhibition articulated columns respectively by two skew cables being crisscross arranged；Each two grades of folding and unfolding mechanism
The common scissor unit of two grades of scissor assembly other ends of the other two arranging outwardly passes through two oblique pulls being crisscross arranged respectively
Rope is connected with adjacent two two grades folding exhibition articulated columns；Two two grades of scissor assemblies that each two grades of folding and unfolding mechanism is arranged outwardly are another
Two skew cables passing through between the common scissor unit of one end to be crisscross arranged connect；
During expansion, motor drives lead screw to rotate forward, and central slider is close to center fixed block in lead screw and moves, the
One variation scissor assembly outwards launches so that one-level folding exhibition articulated column is displaced outwardly, and one-level folding exhibition articulated column orders about five two grades
Folding and unfolding mechanism is launched；Brake and spacing cut the effect that bar plays limitation locking, when fully deployed, the spacing limited block top cutting bar
That lives the first variation scissor unit commonly cuts bar, and all suspension cables are in tensioning state；During folding, motor drives lead screw anti-
Turn.
2. a kind of spherical antenna supporting mechanism according to claim 1 it is characterised in that: each two grades of folding and unfolding mechanism is outwardly
The common scissor unit of the two two grades scissor assembly other ends of setting also can open setting, for connecting three-level folding and unfolding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538119.4A CN104466341B (en) | 2014-10-13 | 2014-10-13 | Spherical antenna supporting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538119.4A CN104466341B (en) | 2014-10-13 | 2014-10-13 | Spherical antenna supporting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104466341A CN104466341A (en) | 2015-03-25 |
| CN104466341B true CN104466341B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410538119.4A Expired - Fee Related CN104466341B (en) | 2014-10-13 | 2014-10-13 | Spherical antenna supporting mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN104466341B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526246A (en) * | 2016-01-22 | 2016-04-27 | 佛山市禾才科技服务有限公司 | Contractible shear mode set half-round surface and arc surface |
| CN107237548A (en) * | 2016-03-28 | 2017-10-10 | 佛山市禾才科技服务有限公司 | A kind of variable-sized triangle safety barrier |
| CN107237549A (en) * | 2016-03-28 | 2017-10-10 | 佛山市禾才科技服务有限公司 | A kind of variable-sized quadrangle safety barrier |
| CN108649313B (en) * | 2017-12-27 | 2020-01-31 | 哈尔滨工业大学（深圳） | deployable curved surface truss mechanism based on rigid-flexible mixed shear fork mechanism |
| CN109108575A (en) * | 2018-08-06 | 2019-01-01 | 滁州市经纬装备科技有限公司 | A kind of spherical antenna bracket production technology |
| CN110504522B (en) * | 2019-08-30 | 2020-06-26 | 燕山大学 | Flat plate folding and unfolding unit and flat plate folding and unfolding antenna mechanism |
| CN114914657A (en) * | 2022-04-21 | 2022-08-16 | 燕山大学 | Single-degree-of-freedom scissor linkage type telescopic rib type folding and unfolding antenna mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924266A (en) * | 2010-06-12 | 2010-12-22 | 上海大学 | Spherical three-degree-of-freedom parallel mechanism antenna structure system |
| CN204216200U (en) * | 2014-10-13 | 2015-03-18 | 浙江理工大学 | spherical antenna supporting mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027303A (en) * | 1998-07-10 | 2000-01-25 | Nippon Telegr & Teleph Corp <Ntt> | Support structure |
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2014
- 2014-10-13 CN CN201410538119.4A patent/CN104466341B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924266A (en) * | 2010-06-12 | 2010-12-22 | 上海大学 | Spherical three-degree-of-freedom parallel mechanism antenna structure system |
| CN204216200U (en) * | 2014-10-13 | 2015-03-18 | 浙江理工大学 | spherical antenna supporting mechanism |
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| Publication number | Publication date |
|---|---|
| CN104466341A (en) | 2015-03-25 |
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Granted publication date: 20170125 Termination date: 20171013 |