CN106025484A - Scissors fork linkage type double-layer circular truss unfoldable antenna mechanism - Google Patents
Scissors fork linkage type double-layer circular truss unfoldable antenna mechanism Download PDFInfo
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- CN106025484A CN106025484A CN201610512070.4A CN201610512070A CN106025484A CN 106025484 A CN106025484 A CN 106025484A CN 201610512070 A CN201610512070 A CN 201610512070A CN 106025484 A CN106025484 A CN 106025484A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
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Abstract
The invention relates to a scissors fork linkage type double-layer circular truss unfoldable antenna mechanism. The scissors fork linkage type double-layer circular truss unfoldable antenna mechanism includes an inner-layer circular truss assembly, an outer-layer circular truss assembly and N inner and outer layer connection truss assemblies; each of the inner-layer circular truss assembly and the outer-layer circular truss assembly includes N folding and unfolding units, wherein adjacent folding and unfolding units are connected through two disk chucks; after being unfolded, each of the inner-layer circular truss assembly and the outer-layer circular truss assembly is a multi-faced circular truss structure; the inner-layer circular truss assembly and the outer-layer circular truss assembly are arranged concentrically; four disk chucks between the inner-layer circular truss assembly and the outer-layer circular truss assembly, which are located in a vertical plane, are connected together through one inner and outer layer connection truss assembly; the structure form and connection mode of the inner-layer folding and unfolding units are similar to the structure form and connection mode of the outer-layer folding and unfolding units; outer-layer rods are longer than inner-layer rods; and the length difference value of the outer-layer rods and the inner-layer rods can be designed according to the specific aperture and folding ratio of the unfoldable antenna. The scissors fork linkage type double-layer circular truss unfoldable antenna mechanism of the invention has the advantages of high rigidity, structural simplicity and high reliability. According to the scissors fork linkage type double-layer circular truss unfoldable antenna mechanism, the expansibility of modules is high, and the number of the modules can be changed randomly according to the requirements of the aperture of the antenna and the sizes of units. The scissors fork linkage type double-layer circular truss unfoldable antenna mechanism can be applied to communication satellites, space stations and space detectors.
Description
Technical field
The present invention relates to a kind of deployable antenna mechanism.
Background technology
Along with developing rapidly, in all kinds of aerospace engineering of the causes such as manned space flight, earth observation, survey of deep space and space communication
The size of the space mechanism needed is increasing, and with the demand of satisfied different space missions, but it is effective to be affected by spaceflight delivering tool
The restriction in appearance storehouse, space, needs design to have the big space fold-playing mechanism folding ratio, is in rugosity in transmitting and haulage stage
State is also drawn in trousers, reinflated to duty after spacecraft injection.Along with all kinds of aerospace projects
Progressively development and the continuous complication of aerospace system, the relevant design of space folding and unfolding mechanism has become following aerospace industry
The key foundation sex chromosome mosaicism of development, space folding and unfolding mechanism has become the aerospace such as manned space flight, earth observation field in recent years
Study hotspot.
Launching and tucked way according to development agency, development agency can be divided into hinged truss formula development agency, deformable material to open up
Mechanism and gas-filled unfolded development agency, hinged truss formula development agency is mainly made up of connecting rod and kinematic pair, and this type of mechanism has
Have gathering fold bigger, precision is high, repeatable gathering extensibility is good and the advantage of life-span length, be widely used in
The fields such as space station basic skeleton, space mast and heavy caliber folding exhibition antenna.
Large Deployable satellite antenna is the key technology in satellite development work, electronic reconnaissance, data relaying, over the ground navigation etc.
Task proposes high-gain requirement to satellite antenna, and directly increasing reflector bore is to improve the most effective approach of antenna gain,
Existing spaceborne Deployable antenna many employings hinged truss formula development agency, annular truss mechanism is widely used one, but
It is that existing annular truss class of establishment is less, and along with the increase of antenna aperture, antenna Stiffness is more serious, some
Annular truss deployable antenna uses tensioning zip to realize the raising of antenna mechanism integral rigidity, but tensioning zip is complex,
Wayward, also reduce integrally-built reliability, during launching, wrapping phenomena easily occurs, make annular truss antenna
Launch unsuccessfully, cause huge economic loss.Therefore, anufacturability is good, rigidity is high, fold the performances such as ratio is big to need proposition badly
Excellent development agency, with the demand of satisfied different space missions.
Summary of the invention
It is an object of the invention to solve existing annular truss mechanism rigidity the highest, and along with antenna aperture increases Stiffness
Serious and mechanism folds the problem smaller, reliability is relatively low, and then provides a kind of scissor coordinated type bilayer annular truss to open up
Kaitian's line mechanism.
The present invention includes internal layer annular component truss, outer annular component truss and N number of ectonexine truss frame for connecting assembly；In described
Layer annular truss assembly includes N number of internal layer folding exhibition unit, and each internal layer folding exhibition unit close-packed arrays, between adjacent inner layer folding exhibition unit
Connecting by sharing two internal layer floral discs, thus form internal layer annular component truss, internal layer annular component truss is multiaspect after launching
Formula hoop truss structure；Described outer annular component truss includes N number of outer layer folding exhibition unit, and each outer layer folding opens up unit close-packed arrays,
By sharing two outer layer floral discs connections between adjacent outward layer folding exhibition unit, thus form outer annular component truss, outer annular
Component truss is how facial hoop truss structure after launching；Whole scissor coordinated type bilayer annular truss deployable antenna mechanism internal layer
Annular truss assembly and outer annular component truss are arranged concentrically, between internal layer annular component truss and outer annular component truss
It is positioned at four floral discs (including two internal layer floral discs and two outer layer floral discs) of vertical plane by an ectonexine truss frame for connecting
Assembly connects.
Described internal layer folding exhibition unit, it includes two internal layer scissors rods, four internal layer connecting rods and four internal layer floral discs；Said two
Internal layer scissors rod structure is identical, is connected by revolute pair in the middle of two internal layer scissors rods, forms internal layer scissor folding rod；Institute
Stating four internal layer bar linkage structures identical, two is one group, and one end is connected by revolute pair, and four internal layer connecting rods form two altogether
Group internal layer folding connecting rod；Described four internal layer disc chuck structures are identical, and each internal layer floral disc all has three forks, one of them
Prop up fork and be provided with a monosymmetric open slot, i.e. single cavity mouth props up fork, and two other fork respectively sets two open slots, the most double
Notch props up fork, and two double flute mouths prop up fork and also prop up the plane of symmetry of fork pockets mouth as symmetry with single cavity mouth, and two double flute mouths prop up each notch of fork
The plane of symmetry and single cavity mouth to prop up the angle of the fork pockets mouth plane of symmetry be (90+180/N) °；Single cavity mouth props up the open slot of fork in inserting
Outer layer truss frame for connecting is also connected by revolute pair, and two are propped up the double flute mouth of fork near single cavity mouth and prop up the open slot of fork for inserting internal layer
Folding connecting rod is also connected by revolute pair, and two other double flute mouth propping up fork away from single cavity mouth props up the open slot of fork for inserting internal layer
Scissor folding rod is also connected by revolute pair, and four internal layer floral discs are symmetrically distributed in internal layer and can open up on four summits of unit；Described
Four ends of internal layer scissor folding rod insert double flute mouth on four internal layer floral discs respectively and prop up in the open slot that fork props up fork away from single cavity mouth, logical
Crossing four revolute pairs to be connected with four internal layer floral discs, four revolute pair axis are rolled over being connected two internal layer scissors rod composition internal layer scissors
The revolute pair axis of folded bar is parallel；Often group internal layer folding connecting rod two ends insert respectively parallel two inner side floral disc on double flute mouth prop up
Fork props up near single cavity mouth in the open slot of fork, is connected with two internal layer floral discs by two revolute pairs, two revolute pair axis and company
The revolute pair axis connecing two internal layer connecting rod composition internal layer folding connecting rods is parallel；Internal layer folding connecting rod in same internal layer folding exhibition unit
The most parallel with the revolute pair axis on internal layer scissor folding rod.
Described outer layer folding exhibition unit, it includes two outer layer scissors rods, four outer layer connecting rods and four outer layer floral discs；Said two
Outer layer scissors rod structure is identical, is connected by revolute pair in the middle of two outer layer scissors rods, forms outer layer scissor folding rod；Institute
Stating four outer layer bar linkage structures identical, two is one group, and one end is connected by revolute pair, and four outer layer connecting rods form two altogether
Group outer layer folding connecting rod；Described four outer layer disc chuck structures are identical, and each outer layer floral disc all has three forks, one of them
Prop up fork and be provided with a monosymmetric open slot, i.e. single cavity mouth props up fork, and two other fork respectively sets two open slots, the most double
Notch props up fork, and two double flute mouths prop up fork and also prop up the plane of symmetry of fork pockets mouth as symmetry with single cavity mouth, and two double flute mouths prop up each notch of fork
The plane of symmetry and single cavity mouth to prop up the angle of the fork pockets mouth plane of symmetry be (90-180/N) °, the open slot that single cavity mouth props up fork is inside and outside for inserting
Layer truss frame for connecting is also connected by revolute pair, and two the double flute mouths propping up fork near single cavity mouth prop up the open slot of fork for inserting outer layer folding
Folded connecting rod is also connected by revolute pair, and two other double flute mouth props up the open slot of fork for inserting outer layer scissor folding rod and by turning
Dynamic pair connects, and four outer layer floral discs are symmetrically distributed in outer layer and can open up on four summits of unit；The four of described outer layer scissor folding rod
End inserts during double flute mouth props up the open slot that fork props up fork away from single cavity mouth on four outer layer floral discs respectively, by four revolute pairs with four
Outer layer floral disc connects, and four revolute pair axis are put down with the revolute pair axis being connected two outer layer scissors rod composition outer layer scissor folding rods
OK；Often the two ends of group outer layer folding connecting rod are inserted double flute mouth on parallel two outer layer floral disc respectively and are propped up fork and prop up fork near single cavity mouth
In open slot, being connected with two outer layer floral discs by two revolute pairs, two revolute pair axis form with being connected two outer layer connecting rods
The revolute pair axis of outer layer folding connecting rod is parallel；Same outer layer folding is opened up on the outer layer folding connecting rod in unit and outer layer scissor folding rod
Revolute pair axis the most parallel.
Described ectonexine truss frame for connecting assembly, connects scissors rod and a roller including two, and said two connects scissors rod structure
Identical, connect in the middle of scissors rod and be provided with chute, two are connected to be linked together by roller in the middle of scissors rods and form connection and cut
Fork folding rod, roller can connect in the chute on scissors rods at two and rolls, connect four ends of scissor folding rod insert respectively institute its
Two internal layer floral discs in the vertical plane of place and the single cavity mouth of two outer layer floral discs prop up in the open slot of fork and by four revolute pairs
Connecting, four revolute pair axis are the most parallel.
Described internal layer folding exhibition unit is similar with outer layer folding exhibition unit structural form and connected mode, but scantling is different, described
Outer layer scissors rod in outer layer folding exhibition unit and the outer layer connecting rod all ratio internal layer scissors rod in internal layer folding exhibition unit and internal layer length of connecting rod,
Its length difference is adjustable, can be designed according to the concrete bore of deployable antenna and folding ratio.
The present invention compared with prior art has the advantage that
1, the rigidity of the present invention is higher, can fully meet the use rigidity requirement of space large caliber deployable antenna；
2, the present invention has the advantage that motion is flexible, folding is bigger.
3, present configuration is simple, it is easy to accomplish engineering manufacture.
4, present invention employs modular design philosophy, module number can according to antenna aperture and the demand of cell size with
Meaning changes, and module autgmentability is strong, can realize modularized production, thus effectively reduce manufacturing cost and difficulty.
5, embodiment of the present invention is simple, and reliability is high, can be applicable on communications satellite, space station and space probe.
Accompanying drawing explanation
Fig. 1 is the fully deployed three-dimensional simplified schematic diagram of scissor coordinated type bilayer annular truss deployable antenna mechanism of the present invention；
Fig. 2 is that the scissor coordinated type bilayer annular truss deployable antenna mechanism of the present invention draws three-dimensional simplified schematic diagram completely in；
Fig. 3 is the internal layer annular component truss solid simplified schematic diagram of the present invention；
Fig. 4 is the outer annular component truss solid simplified schematic diagram of the present invention；
Fig. 5 is that the internal layer folding exhibition unit of the present invention launches three-dimensional simplified schematic diagram；
Fig. 6 is that the internal layer folding exhibition unit of the present invention draws three-dimensional simplified schematic diagram in；
Fig. 7 is that the outer layer folding exhibition unit of the present invention launches three-dimensional simplified schematic diagram；
Fig. 8 is the ectonexine truss frame for connecting assembly solid simplified schematic diagram of the present invention；
Fig. 9 is the internal layer floral disc solid simplified schematic diagram of the present invention；
Figure 10 is the outer layer floral disc solid simplified schematic diagram of the present invention；
Figure 11 is the roller solid simplified schematic diagram of the present invention.
In figure: A: internal layer folding exhibition unit, B: outer layer folding exhibition unit, C: ectonexine truss frame for connecting assembly；1: the first internal layer flower
Dish, 2: the first internal layer scissors rods, 3: the second internal layer floral discs, 4: the first internal layer connecting rods, 5: the second internal layer connecting rods, 6: the three
Internal layer floral disc, 7: the second internal layer scissors rods, 8: the four internal layer floral discs, 9: the three internal layer connecting rods, 10: the four internal layer connecting rods,
11: the first outer layer floral discs, 12: the first outer layer connecting rods, 13: the second outer layer connecting rods, 14: the second outer layer floral discs, 15: the three
Outer layer floral disc, 16: the first outer layer scissors rods, 17: the three outer layer connecting rods, 18: e a fourth external layer connecting rod, 19: the second outer layers are cut
Fork arm, 20: e a fourth external layer floral disc, 21: the first connect scissors rods, 22: the second connect scissors rods, 23: roller.
Detailed description of the invention
As Figure 1-Figure 4, scissor coordinated type bilayer annular truss deployable antenna mechanism comprises N number of internal layer folding exhibition unit A, N number of
Outer layer folding exhibition unit B and N number of ectonexine truss frame for connecting assembly C；Each internal layer folding exhibition unit A close-packed arrays, adjacent inner layer folding exhibition is single
By sharing two internal layer floral discs connections between unit, thus form internal layer annular component truss, after internal layer annular component truss launches
For how facial hoop truss structure；Each outer layer folding exhibition unit B close-packed arrays, by sharing two between adjacent outward layer folding exhibition unit
Outer layer floral disc connects, thus forms outer annular component truss, and outer annular component truss is how facial annular truss knot after launching
Structure；Whole scissor coordinated type bilayer annular truss deployable antenna mechanism's internal layer annular component truss and outer annular component truss are same
The heart is arranged, and four floral discs being positioned at vertical plane between internal layer annular component truss and outer annular component truss (include two
Individual internal layer floral disc and two outer layer floral discs) connected by an ectonexine truss frame for connecting assembly C.
As shown in Fig. 5, Fig. 6 and Fig. 9, the internal layer folding exhibition unit of scissor coordinated type bilayer annular truss deployable antenna mechanism, they are two years old
Individual internal layer scissors rod structure is identical, and centre is connected by revolute pair, forms internal layer scissor folding rod；Four internal layer connecting rod knots
Structure is identical, and two is one group, and one end is connected by revolute pair, and four internal layer connecting rods form two groups of internal layer folding connecting rods altogether；
Four internal layer disc chuck structures are identical, and each internal layer floral disc all has three forks, and one of them fork is provided with both sides pair
The open slot claimed, i.e. single cavity mouth props up fork, two other fork respectively sets two open slots, i.e. double flute mouth and props up fork, and two double flutes
A mouthful fork also props up the plane of symmetry of fork pockets mouth as symmetry with single cavity mouth, and two double flute mouths prop up pitch the plane of symmetry of each notch and single cavity mouth props up fork
The angle of the notch plane of symmetry is (90+180/N) °；Single cavity mouth props up the open slot of fork for inserting ectonexine truss frame for connecting and by turning
Dynamic pair connects, and two are propped up the double flute mouth of fork near single cavity mouth and prop up the open slot of fork for inserting internal layer folding connecting rod and passing through revolute pair
Connecting, two other double flute mouth propping up fork away from single cavity mouth props up the open slot of fork for inserting internal layer scissor folding rod and by rotating
Secondary connection, four internal layer floral discs are symmetrically distributed in internal layer and can open up on four summits of unit；Four ends of described internal layer scissor folding rod
On four internal layer floral discs of insertion, double flute mouth props up in the open slot that fork props up fork away from single cavity mouth respectively, by four revolute pairs and four
Layer floral disc connects, and four revolute pair axis are parallel with the revolute pair axis connecting two internal layer scissors rod composition internal layer scissor folding rods；
Often the two ends of group internal layer folding connecting rod are inserted double flute mouth on the floral disc of parallel two inner side respectively and are propped up fork and prop up the opening of fork near single cavity mouth
In groove, being connected with two internal layer floral discs by two revolute pairs, two revolute pair axis form internal layers with being connected two internal layer connecting rods
The revolute pair axis of folding connecting rod is parallel；Internal layer folding opens up turning on two groups of internal layer folding connecting rods in unit and internal layer scissor folding rod
Dynamic secondary axis is the most parallel.
Connecting composition internal layer scissor folding rod by revolute pair in the middle of first internal layer scissors rod 2 and the second internal layer scissors rod 7, internal layer is cut
Four ends of fork folding rod insert the first internal layer floral disc the 1, second internal layer floral disc the 3, the 3rd internal layer floral disc 6 and the 4th internal layer floral disc 8 respectively
Upper double flute mouth props up in the open slot that fork props up fork away from single cavity mouth, is connected with four internal layer floral discs by revolute pair, and internal layer scissor folds
Five revolute pair axis on bar are the most parallel；First internal layer connecting rod 4 and second internal layer connecting rod 5 one end connect composition the by revolute pair
One internal layer folding connecting rod, the 3rd internal layer connecting rod 9 and the 4th internal layer connecting rod 10 one end connect composition the second internal layer by revolute pair and fold even
Bar, the two ends of the first internal layer folding connecting rod are inserted double flute mouth on the second internal layer floral disc 3 and the 3rd internal layer floral disc 6 respectively and are propped up fork near single
Notch props up in the open slot of fork, is connected with two internal layer floral discs by revolute pair, three revolute pairs on the first internal layer folding connecting rod
Axis is the most parallel, and the two ends of the second internal layer folding connecting rod are inserted double flute mouth on the first internal layer floral disc 1 and the 4th internal layer floral disc 8 respectively and propped up
Fork props up near single cavity mouth in the open slot of fork, is connected with two internal layer floral discs by revolute pair, three on the second internal layer folding connecting rod
Individual revolute pair axis is the most parallel；Revolute pair on internal layer scissor folding rod, the first internal layer folding connecting rod and the second internal layer folding connecting rod
Axis is the most parallel.
As illustrated in fig. 7 and fig. 10, the outer layer folding of scissor coordinated type bilayer annular truss deployable antenna mechanism opens up unit, outside two
Layer scissors rod structure is identical, and centre is connected by revolute pair, forms outer layer scissor folding rod；Four outer layer bar linkage structures are complete
Exactly the same, two is one group, and one end is connected by revolute pair, and four outer layer connecting rods form two groups of outer layer folding connecting rods altogether；Four
Outer layer disc chuck structure is identical, and each outer layer floral disc all has three forks, one of them fork be provided with one monosymmetric
Open slot, i.e. single cavity mouth props up fork, two other fork respectively sets two open slots, i.e. double flute mouth and props up fork, and two double flute mouths prop up
Fork also props up the plane of symmetry of fork pockets mouth as symmetry with single cavity mouth, and two double flute mouths prop up pitch the plane of symmetry of each notch and single cavity mouth props up fork pockets mouth
The angle of the plane of symmetry is (90-180/N) °, and single cavity mouth props up the open slot of fork for inserting ectonexine truss frame for connecting and being connected by revolute pair
Connect, prop up two double flute mouths of fork near single cavity mouth and prop up the open slot of fork for inserting outer layer folding connecting rod and being connected by revolute pair,
Two other double flute mouth props up the open slot of fork for inserting outer layer scissor folding rod and being connected by revolute pair, four outer layer floral discs pair
Claim to be distributed in outer layer can open up on four summits of unit；Four ends of described outer layer scissor folding rod insert on four outer layer floral discs respectively
Double flute mouth props up in the open slot that fork props up fork away from single cavity mouth, is connected with four outer layer floral discs by four revolute pairs, four revolute pairs
Axis is parallel with the revolute pair axis connecting two outer layer scissors rod composition outer layer scissor folding rods；Often organize the two of outer layer folding connecting rod
End inserts double flute mouth on parallel two outer layer floral disc respectively and props up in the open slot that fork props up fork near single cavity mouth, by two revolute pairs
It is connected with two outer layer floral discs, two revolute pair axis and the revolute pair axis being connected two outer layer connecting rod composition outer layer folding connecting rods
Parallel；Two groups of outer layer folding connecting rods in outer layer folding exhibition unit are the most parallel with the revolute pair axis on outer layer scissor folding rod.
Composition outer layer scissor folding rod, outer layer is connected by revolute pair in the middle of first outer layer scissors rod 16 and the second outer layer scissors rod 19
Four ends of scissor folding rod insert the first outer layer floral disc the 11, second outer layer floral disc the 14, the 3rd outer layer floral disc 15 and e a fourth external layer respectively
During on floral disc 20, double flute mouth props up the open slot that fork props up fork away from single cavity mouth, being connected with four outer layer floral discs by revolute pair, outer layer is cut
Five revolute pair axis on fork folding rod are the most parallel；First outer layer connecting rod 12 and second outer layer connecting rod 13 one end are by revolute pair even
Connect composition the first outer layer folding connecting rod, the 3rd outer layer connecting rod 17 and e a fourth external layer connecting rod 18 one end and connect composition second by revolute pair
Outer layer folding connecting rod, double flute on the first outer layer floral disc 11 and the second outer layer floral disc 14 is inserted at the two ends of the first outer layer folding connecting rod respectively
Mouth fork props up near single cavity mouth in the open slot of fork, is connected with two outer layer floral discs by revolute pair, on the first outer layer folding connecting rod
Three revolute pair axis the most parallel, the two ends of the second outer layer folding connecting rod insert respectively the 3rd outer layer floral disc 15 and e a fourth external layer flower
During on dish 20, double flute mouth props up the open slot that fork props up fork near single cavity mouth, it is connected with two outer layer floral discs by revolute pair, the second outer layer
Three revolute pair axis on folding connecting rod are the most parallel；Outer layer scissor folding rod, the first outer layer folding connecting rod and the second outer layer fold
Revolute pair axis on connecting rod is the most parallel.
As shown in Figure 8 and Figure 11, the ectonexine truss frame for connecting assembly of scissor coordinated type bilayer annular truss deployable antenna mechanism, its
All have chute on first connection scissors rod 21 and the second connection scissors rod 22, connect composition by roller 23 and connect scissor folding rod,
Roller 23 can connect scissors rod 21 and second first and connect rolling in the chute on scissors rod 22, connects four ends of scissor folding rod
The single cavity mouth inserting the 3rd internal layer floral disc the 6, the 4th internal layer floral disc the 8, second outer layer floral disc 14 and the 3rd outer layer floral disc 15 respectively props up fork
Open slot in and connected by four revolute pairs, connect four revolute pair axis on scissor folding rod the most parallel.
As shown in Fig. 1-Fig. 9, internal layer folding exhibition unit A is identical with outer layer folding exhibition unit B version and connected mode, but component
Size is different, and the first outer layer scissors rod 16 and the second outer layer scissors rod 19 are all than the first internal layer scissors rod 2 and the second internal layer scissors rod 7
Long, first outer layer connecting rod the 12, second outer layer connecting rod the 13, the 3rd outer layer connecting rod 17 and e a fourth external layer connecting rod 18 are all than the first internal layer
Connecting rod the 4, second internal layer connecting rod the 5, the 3rd internal layer connecting rod 9 and the 4th internal layer connecting rod 10 are long, and its length difference is adjustable, can basis
The concrete bore of deployable antenna and folding ratio are designed.
Claims (7)
1. a scissor coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: scissor coordinated type bilayer annular purlin
Frame deployable antenna mechanism includes internal layer annular component truss, outer annular component truss and N number of ectonexine truss frame for connecting assembly；
Described internal layer annular component truss includes N number of internal layer folding exhibition unit, and each internal layer folding exhibition unit close-packed arrays, adjacent inner layer folding exhibition is single
By sharing two internal layer floral discs connections between unit, thus form internal layer annular component truss, after internal layer annular component truss launches
For how facial hoop truss structure；Described outer annular component truss includes N number of outer layer folding exhibition unit, and each outer layer folding exhibition unit is tight
Solid matter arranges, and by sharing two outer layer floral discs connections between adjacent outward layer folding exhibition unit, thus forms outer annular component truss,
Outer annular component truss is how facial hoop truss structure after launching；Whole scissor coordinated type bilayer annular truss deployable antenna
Mechanism's internal layer annular component truss and outer annular component truss are arranged concentrically, internal layer annular component truss and outer annular truss group
Four floral discs being positioned at vertical plane between part, including two internal layer floral discs and two outer layer floral discs, by an ectonexine
Truss frame for connecting assembly connects；Described internal layer folding exhibition unit, it includes two internal layer scissors rods, four internal layer connecting rods and four internal layers
Floral disc；Said two internal layer scissors rod structure is identical, is connected by revolute pair in the middle of two internal layer scissors rods, forms internal layer
Scissor folding rod；Described four internal layer bar linkage structures are identical, and two is one group, and one end is connected by revolute pair, in four
Layer connecting rod forms two groups of internal layer folding connecting rods altogether；Described four internal layer disc chuck structures are identical, and each internal layer floral disc all has three
Propping up fork, one of them fork is provided with a monosymmetric open slot, i.e. single cavity mouth props up fork, and two other fork respectively sets two
Individual open slot, i.e. double flute mouth prop up fork, and single cavity mouth props up the open slot of fork for inserting ectonexine truss frame for connecting and being connected by revolute pair,
Two are propped up the double flute mouth of fork near single cavity mouth and prop up the open slot of fork for inserting internal layer folding connecting rod and being connected by revolute pair, additionally
Two are propped up the double flute mouth of fork away from single cavity mouth and prop up the open slot of fork for inserting internal layer scissor folding rod and being connected by revolute pair, four
Individual internal layer floral disc is symmetrically distributed in internal layer and can open up on four summits of unit；Four ends of described internal layer scissor folding rod insert four respectively
During on individual internal layer floral disc, double flute mouth props up the open slot that fork props up fork away from single cavity mouth, it is connected with four internal layer floral discs by four revolute pairs,
Four revolute pair axis are parallel with the revolute pair axis connecting two internal layer scissors rod composition internal layer scissor folding rods；Often group internal layer folding
The two ends of folded connecting rod are inserted double flute mouth on the floral disc of parallel two inner side respectively and are propped up in the open slot that fork props up fork near single cavity mouth, pass through
Two revolute pairs are connected with two internal layer floral discs, and two revolute pair axis form internal layer folding connecting rods with being connected two internal layer connecting rods
Revolute pair axis is parallel；Described outer layer folding exhibition unit, it includes two outer layer scissors rods, four outer layer connecting rods and four outer layer flowers
Dish；Said two outer layer scissors rod structure is identical, is connected by revolute pair in the middle of two outer layer scissors rods, and composition outer layer is cut
Fork folding rod；Described four outer layer bar linkage structures are identical, and two is one group, and one end is connected by revolute pair, four outer layers
Connecting rod forms two groups of outer layer folding connecting rods altogether；Described four outer layer disc chuck structures are identical, and each outer layer floral disc all has three
Fork, one of them fork is provided with a monosymmetric open slot, i.e. single cavity mouth props up fork, and two other fork respectively sets two
Open slot, i.e. double flute mouth prop up fork, and single cavity mouth props up the open slot of fork for inserting ectonexine truss frame for connecting and being connected by revolute pair,
Two the double flute mouths propping up fork near single cavity mouth prop up the open slot of fork for inserting outer layer folding connecting rod and being connected by revolute pair, additionally
Two double flute mouths prop up the open slot of fork for inserting outer layer scissor folding rod and being connected by revolute pair, and four outer layer floral disc symmetries are divided
Cloth can be opened up on four summits of unit at outer layer；Four ends of described outer layer scissor folding rod insert double flute on four outer layer floral discs respectively
Mouth fork props up away from single cavity mouth in the open slot of fork, is connected with four outer layer floral discs by four revolute pairs, four revolute pair axis
Parallel with the revolute pair axis connecting two outer layer scissors rod composition outer layer scissor folding rods；Often the two ends of group outer layer folding connecting rod are divided
Do not insert double flute mouth on parallel two outer layer floral disc and prop up in the open slot that fork props up fork near single cavity mouth, by two revolute pairs and two
Individual outer layer floral disc connects, and two revolute pair axis are parallel with the revolute pair axis connecting two outer layer connecting rod composition outer layer folding connecting rods；
Described ectonexine truss frame for connecting assembly, connects scissors rod and a roller including two, and it is complete that said two connects scissors rod structure
Identical, two are connected middle being linked together by roller of scissors rod and form connection scissor folding rod, connect the four of scissor folding rod
End insert respectively the single cavity mouth of two internal layer floral discs in its place vertical plane and two outer layer floral discs prop up in the open slot of fork also
Being connected by four revolute pairs, four revolute pair axis are the most parallel.
Scissor the most according to claim 1 coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: first
Composition internal layer scissor folding rod is connected by revolute pair in the middle of internal layer scissors rod and the second internal layer scissors rod, internal layer scissor folding rod
Four ends insert double flute mouth on the first internal layer floral disc, the second internal layer floral disc, the 3rd internal layer floral disc and the 4th internal layer floral disc respectively and prop up fork far
Prop up in the open slot of fork from single cavity mouth, be connected with four internal layer floral discs by revolute pair, five rotations on internal layer scissor folding rod
Secondary axis is the most parallel；First internal layer connecting rod and second internal layer connecting rod one end connect composition the first internal layer folding connecting rod by revolute pair,
3rd internal layer connecting rod and the 4th internal layer connecting rod one end connect composition the second internal layer folding connecting rod by revolute pair, and the first internal layer folds even
The two ends of bar are inserted double flute mouth on the second internal layer floral disc and the 3rd internal layer floral disc respectively and are propped up in the open slot that fork props up fork near single cavity mouth,
Being connected with two internal layer floral discs by revolute pair, three revolute pair axis on the first internal layer folding connecting rod are the most parallel, the second internal layer
The two ends of folding connecting rod are inserted double flute mouth on the first internal layer floral disc and the 4th internal layer floral disc respectively and are propped up fork and prop up the opening of fork near single cavity mouth
In groove, being connected with two internal layer floral discs by revolute pair, three revolute pair axis on the second internal layer folding connecting rod are the most parallel；The
Composition outer layer scissor folding rod, outer layer scissor folding rod is connected by revolute pair in the middle of one outer layer scissors rod and the second outer layer scissors rod
Four ends insert double flute mouth on the first outer layer floral disc, the second outer layer floral disc, the 3rd outer layer floral disc and e a fourth external layer floral disc respectively and prop up fork
Propping up away from single cavity mouth in the open slot of fork, be connected with four outer layer floral discs by revolute pair, five on outer layer scissor folding rod turn
Dynamic secondary axis is the most parallel；First outer layer connecting rod and second outer layer connecting rod one end connect composition the first outer layer folding connecting rod by revolute pair,
3rd outer layer connecting rod and e a fourth external layer connecting rod one end connect composition the second outer layer folding connecting rod by revolute pair, and the first outer layer folds even
The two ends of bar are inserted double flute mouth on the first outer layer floral disc and the second outer layer floral disc respectively and are propped up in the open slot that fork props up fork near single cavity mouth,
Being connected with two outer layer floral discs by revolute pair, three revolute pair axis on the first outer layer folding connecting rod are the most parallel, the second outer layer
The two ends of folding connecting rod are inserted double flute mouth on the 3rd outer layer floral disc and e a fourth external layer floral disc respectively and are propped up fork and prop up the opening of fork near single cavity mouth
In groove, being connected with two outer layer floral discs by revolute pair, three revolute pair axis on the second outer layer folding connecting rod are the most parallel；The
One connection scissors rod and second connects scissors rod and connects composition connection scissor folding rod by roller, connects four ends of scissor folding rod
The single cavity mouth inserting the 3rd internal layer floral disc, the 4th internal layer floral disc, the second outer layer floral disc and the 3rd outer layer floral disc respectively props up the opening of fork
Connect in groove and by four revolute pairs, connect four revolute pair axis on scissor folding rod the most parallel.
Scissor the most according to claim 1 and 2 coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: with
Each internal layer folding connecting rod in one internal layer folding exhibition unit is the most parallel with the revolute pair axis on internal layer scissor folding rod.
Scissor the most according to claim 1 and 2 coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: with
Each outer layer folding connecting rod in one outer layer folding exhibition unit is the most parallel with the revolute pair axis on outer layer scissor folding rod.
Scissor the most according to claim 1 and 2 coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: institute
State two double flute mouths of internal layer floral disc and outer layer floral disc to prop up fork and prop up the plane of symmetry of fork pockets mouth as symmetry with single cavity mouth, two in internal layer floral disc
Double flute mouth props up to be pitched the angle that the plane of symmetry of each notch and single cavity mouth prop up the fork pockets mouth plane of symmetry and is 90+180/N °；In outer layer floral disc
Two double flute mouths prop up and pitch the angle that the plane of symmetry of each notch and single cavity mouth prop up the fork pockets mouth plane of symmetry and be 90-180/N °.
Scissor the most according to claim 1 and 2 coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: institute
Stating and be provided with chute in the middle of connection scissors rod, described roller rolls in said two connects the chute on scissors rod.
Scissor the most according to claim 1 and 2 coordinated type bilayer annular truss deployable antenna mechanism, it is characterised in that: institute
State the outer layer scissors rod in outer layer folding exhibition unit and outer layer connecting rod all than the internal layer scissors rod in internal layer folding exhibition unit and internal layer connecting rod
Long, its length difference is adjustable, is designed according to the concrete bore of deployable antenna and folding ratio.
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Cited By (11)
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| CN106695798A (en) * | 2017-02-28 | 2017-05-24 | 中国地质大学（武汉） | Two-layer two-ring connecting rod deployable units and space deployable mechanism based on same |
| CN108281747A (en) * | 2018-03-13 | 2018-07-13 | 燕山大学 | Cut hinge coordinated type Planar Mechanisms bilayer annular truss deployable antenna mechanism |
| CN108843964A (en) * | 2018-07-11 | 2018-11-20 | 燕山大学 | One kind can open up composite structure substantially |
| CN109119739A (en) * | 2018-07-20 | 2019-01-01 | 广西大学 | One kind being based on three structure state transformation space development agency of scissor unit |
| CN109687091A (en) * | 2019-01-18 | 2019-04-26 | 燕山大学 | Pyramid packing forms annular truss deployable antenna mechanism |
| CN110707412A (en) * | 2019-10-16 | 2020-01-17 | 中国地质大学（武汉） | High-folding-ratio double-layer annular deployable antenna mechanism based on straight quadrangular unit |
| CN111009715A (en) * | 2019-12-31 | 2020-04-14 | 中国科学院沈阳自动化研究所 | Novel deployable space reflector antenna curved surface structure and design method |
| CN112531315A (en) * | 2020-11-27 | 2021-03-19 | 浙江大学 | Synchronous unfolding mechanism for satellite-borne phased-array antenna |
| CN113241513A (en) * | 2021-05-11 | 2021-08-10 | 北京航空航天大学 | Folding and unfolding assembly and antenna supporting mechanism with same |
| CN113488780A (en) * | 2021-06-21 | 2021-10-08 | 深圳市中天迅通信技术股份有限公司 | Antenna with synchronously unfolded main surface and auxiliary surface |
| CN115513636A (en) * | 2022-09-30 | 2022-12-23 | 燕山大学 | Three-ring truss expandable antenna mechanism based on scissor connection |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695798A (en) * | 2017-02-28 | 2017-05-24 | 中国地质大学（武汉） | Two-layer two-ring connecting rod deployable units and space deployable mechanism based on same |
| CN108281747A (en) * | 2018-03-13 | 2018-07-13 | 燕山大学 | Cut hinge coordinated type Planar Mechanisms bilayer annular truss deployable antenna mechanism |
| CN108843964A (en) * | 2018-07-11 | 2018-11-20 | 燕山大学 | One kind can open up composite structure substantially |
| CN109119739A (en) * | 2018-07-20 | 2019-01-01 | 广西大学 | One kind being based on three structure state transformation space development agency of scissor unit |
| CN109687091A (en) * | 2019-01-18 | 2019-04-26 | 燕山大学 | Pyramid packing forms annular truss deployable antenna mechanism |
| CN110707412A (en) * | 2019-10-16 | 2020-01-17 | 中国地质大学（武汉） | High-folding-ratio double-layer annular deployable antenna mechanism based on straight quadrangular unit |
| CN111009715A (en) * | 2019-12-31 | 2020-04-14 | 中国科学院沈阳自动化研究所 | Novel deployable space reflector antenna curved surface structure and design method |
| CN112531315A (en) * | 2020-11-27 | 2021-03-19 | 浙江大学 | Synchronous unfolding mechanism for satellite-borne phased-array antenna |
| CN113241513A (en) * | 2021-05-11 | 2021-08-10 | 北京航空航天大学 | Folding and unfolding assembly and antenna supporting mechanism with same |
| CN113488780A (en) * | 2021-06-21 | 2021-10-08 | 深圳市中天迅通信技术股份有限公司 | Antenna with synchronously unfolded main surface and auxiliary surface |
| CN115513636A (en) * | 2022-09-30 | 2022-12-23 | 燕山大学 | Three-ring truss expandable antenna mechanism based on scissor connection |
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