CN108183304A - A kind of Satellite Unfurlable Antenna truss structure based on main shaft - Google Patents
A kind of Satellite Unfurlable Antenna truss structure based on main shaft Download PDFInfo
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- CN108183304A CN108183304A CN201711455584.1A CN201711455584A CN108183304A CN 108183304 A CN108183304 A CN 108183304A CN 201711455584 A CN201711455584 A CN 201711455584A CN 108183304 A CN108183304 A CN 108183304A
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- foldable
- main shaft
- articulated joint
- stock
- truss structure
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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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- 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
- H01Q1/084—Pivotable antennas
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Abstract
The present invention relates to satellite communication fields, more particularly to a kind of Satellite Unfurlable Antenna truss structure based on main shaft, including a main shaft, two slidably spindle collars, two fixed main shaft rings, multiple foldable stocks, multiple foldable quarter butts, multiple short support arms, multiple braces of drawing money on credit, slidably spindle collar can slide to drive foldable stock folding and expansion along main shaft, short support arm and fixed main shaft ring are hinged, to support the stabilization of foldable stock, brace draw money on credit foldable quarter butt to be supported to keep being on same straight line with foldable stock in the deployed state.
Description
Technical field
The present invention relates to satellite communication field, more particularly to a kind of Satellite Unfurlable Antenna truss structure based on main shaft.
Background technology
With the development and popularization and application of space technology, space Large Deployable truss structure has been widely used in satellite
Antenna, solar energy sailboard etc., as spaceborne Large deployable antenna be widely used in aeronautical satellite, telecommunication satellite, in
After satellite, meteorological satellite and reconnaissance satellite etc..And since space industry transportation characterization, such as carrier rocket accommodate size, fortune
Loading capability limitation etc., satellite antenna need to be made foldable, it is desirable that antenna is folded up in launching phase and is fixed on delivery work
Have in payload bay, instruct it in space orbit by design requirement after spacecraft injection, then by ground control centre,
Expansion action is gradually completing, then locks and keeps being in working condition.
At present, satellite antenna expandable truss structure circularizes mostly or umbrella-type is unfolded, and loop configuration is by multiple
Together, the only one-dimensional development movement of one degree of freedom, lack central principal axis leads to monolithic stability to basic unit ring-shaped combination
Property it is poor, umbrella structure drives rib frame to be unfolded by pull rope, easily winds, and overall structure is unstable, and due to purlin
Mounting ring shape element number is more, and folded state integral diameter may be still larger, is not suitable for certain travel positions.
Invention content
For the deficiency of the above-mentioned state of the art, it is a primary object of the present invention to provide a kind of deployable based on main shaft to defend
Star antenna truss structure, component units and expansion mode are different from loop configuration, because there are main shafts, make integral frame more steady
Gu.
The technical solution adopted by the present invention is：A kind of Satellite Unfurlable Antenna truss structure based on main shaft, feature exist
In, tool, there are one main shaft, two slidably spindle collars, two fixed main shaft rings, multiple foldable stocks, multiple foldable short
Bar, multiple short support arms, multiple braces of drawing money on credit, the main shaft are the hollow cylinders for having certain wall thickness；It is described slidably to lead
Collar is to be set in the annulus that the cylindrical type outerface of spindle can be slided along main shaft, and ring body outside wall surface is circumferentially evenly distributed with multiple
Articulated joint I；The fixed main shaft ring is fixedly disposed at the annulus of the cylindrical type outerface of spindle, and ring body outside wall surface is circumferentially uniform
Multiple articulated joint I are distributed with；The foldable stock is the length section of the skeleton for the truss structure for forming support satellite antenna face, can
Fold stock one end and be equipped with the articulated joint II hinged with articulated joint I on spindle collar, the other end be equipped with it is described foldable
The articulated joint III that quarter butt links together is additionally provided with two hinge holes on the body of rod of foldable stock；The foldable quarter butt is
The short section of the skeleton of the truss structure in support satellite antenna face is formed, foldable quarter butt one end is equipped with and foldable stock articulated joint
Articulated joint IV hinged III, the other end are equipped with the device for fixed antenna wire side, are gone back on the body of rod of foldable quarter butt
Equipped with hinge hole；The short support arm is used to foldable stock be pushed to be unfolded and in antenna during the expansion of antenna truss structure
Foldable stock is supported to stablize under truss structure fully unfolded position, one end of short support arm is equipped with and the hinge on fixed main shaft ring
Articulated joint II hinged connector I, the other end are equipped with and are hinged on the hinge hole near with a distance from articulated joint II on foldable stock
Articulated joint V together；It is described draw money on credit brace for push foldable quarter butt stable during the expansion of antenna truss structure and
Support the stabilization of foldable quarter butt under antenna truss structure fully unfolded position, both ends are equipped with hinged bulb, one end with can
It folds the hinge hole near with a distance from articulated joint III on stock and carries out ball-joint, the other end and the hinge hole on foldable quarter butt
Carry out ball-joint.
Described two slidably spindle collar articulated joint I are staggeredly set on main shaft, make each of slidably spindle collar
Articulated joint I is corresponded among another slidably two articulated joint I of spindle collar just, so that is connect with articulated joint I can
Folding stock can pass through among another slidably two adjacent articulated joint I of spindle collar just, by this method, in antenna purlin
Under frame structure folding state, slidably the foldable stock of all articulated joint I connections can towards consistent and each on spindle collar
It folds stock and both passes through another slidably among two adjacent articulated joint I of spindle collar, so as to make two slidably main shafts
The foldable stock of ring is arranged in a crossed manner, and is not interfere with each other during expansion；Fixation is arranged described two fixed main shaft rings respectively
In main shaft by two close end, the articulated joint I of each fixed main shaft ring with away from the articulated joint I on its slidably spindle collar farther out
It is overlapped in axial direction.
Foldable stock, foldable quarter butt, draw money on credit brace and short support arm the body of rod be circular pin or square pole.
The articulated joint IV of the articulated joint III of foldable stock one end and foldable quarter butt one end is by only can be at 0~180 °
In the range of the mode that relatively rotates it is hinged, so as to be a length when foldable stock and foldable quarter butt are fully deployed
Arm configuration ensures antenna truss stability of strutting system.
The articulated joint V of short support arm has certain camber, so that itself and hinge near apart from articulated joint II on foldable stock
When connecing hole and linking together, short support arm can be folded into the parallel state being close together with foldable stock.With short support arm
On articulated joint I slidably spindle collars corresponding with the foldable stock that the short support arm connects on hinged fixed main shaft ring
Articulated joint I is overlapped along the axial direction of main shaft.
Draw money on credit brace both ends hinged bulb by flexural pivot connection device respectively on foldable stock from articulated joint III away from
Ball-joint is carried out from the hinge hole near hinge hole and foldable quarter butt, so that brace of drawing money on credit can be in multiple degrees of freedom bias internal one
Determine angle, the flexural pivot connection device, which has, to be inserted in rotatable tip axis in hinge hole and connect the flexural pivot that brace of drawing money on credit is hinged bulb
Connect shell.Foldable stock and another foldable stock corresponding with foldable quarter butt per the connection of root long support arm are connected to not
On same slidably spindle collar, and in connection two articulated joint I are disposed adjacent.
The quantity of articulated joint I is preferably 8 on the slidably spindle collar and fixed main shaft ring, the foldable stock
Quantity for 16, the quantity of the foldable quarter butt is 16, and the quantity of the short support arm is 16, the brace of drawing money on credit
Quantity be 16.
The expansion process of the Satellite Unfurlable Antenna truss structure based on main shaft uses gear-rack drive mechanism, packet
A gear and two racks are included, the main shaft upper semisection and lower semisection are respectively provided with strip hole, and the rack is opposite one on the other
It is arranged on inside main shaft, and there is the tip being affixed to through main shaft strip hole on slidably spindle collar, each rack passes through
The tip is fixedly connected with a slidably spindle collar, and the gear is arranged among two racks, to drive two racks along main shaft
It is axially opposing separate or be relatively close to, so as to drive two slidably spindle collar along the axially opposing separate of main shaft or be connected to each other
Closely.
Foldable stock and hinge hole location determination rule on foldable quarter butt：Short support arm and foldable stock hinge position
When putting on foldable stock the sum of the length of articulated joint II and short support arm lengths and being equal to antenna truss structure folded state
Slidably spindle collar and the length away from it between remote fixed main shaft ring, so as to which antenna truss structure is in folding state
When, short support arm can be folded to foldable stock and fit together completely；It draws money on credit brace and foldable stock link position
Length of the hinge hole apart from articulated joint III on foldable stock is hinged on foldable quarter butt with hinge hole on foldable quarter butt
The equal length of head IV.Short support arm and the length for brace of drawing money on credit all are according to foldable length during antenna truss fully unfolded position
Angle (half of antenna expanded angle) is determining between bar and main shaft, i.e., in the case where the expanded angle of design determines, adopts
With the determining hinge hole of above-mentioned rule, then short support arm and the distance for brace of drawing money on credit can all be determined.
The one end of the main shaft both ends and foldable quarter butt far from articulated joint IV is equipped with the auxiliary soft net of fixed antenna metal
Device, such as threaded hole, to coordinate with other fixing pieces.
The longitudinal drag-line parallel with main shaft can be used under unfolded state, between the soft wire side of upper and lower two metals, drawing is provided mutually
Power, so that the soft wire side shape of the metal of spherical cambered surface is more stable.
Compared with prior art, the advantage of the invention is that：With main shaft, the stress point that arm is unfolded all focuses on main shaft
On, make antenna truss structure whole more firm；Compared with hoop truss structure, folded state has smaller contracted diameter, using tooth
The expansion of rack drives skeletons is taken turns, is stablized and is not susceptible to card and the failures such as twines；Compared with umbrella-type truss structure, the present invention is mutual by upper and lower two parts
Mutually support, mutually driving expansion, structure is more stablized, and can provide two antenna surfaces.
Description of the drawings
Fig. 1 is inventive antenna truss structure fully unfolded position schematic diagram；
When Fig. 2 is that the deployable antenna truss structure of the present invention only retains 8 support frames for being biased to top radiation expansion
Structure diagram；
Fig. 3 is unit status change schematic diagram during the expansion of inventive antenna truss structure；
Fig. 4 is that slidably spindle collar schematic diagram, wherein Fig. 4-1 are that slidably spindle collar front view, Fig. 4-2 are Fig. 4-1
A direction views；
Fig. 5 is another slidably spindle collar schematic diagram, wherein Fig. 5-1 be another slidably spindle collar front view,
Fig. 5-2 is the B direction views of Fig. 5-1；
Fig. 6 is two fixed main shaft plane of a loop schematic diagrames；
Fig. 7 is main axle structure schematic diagram；
Fig. 8 is foldable long rod structure schematic diagram；
Fig. 9 is foldable quarter butt structure diagram；
Figure 10 is long support arm configuration schematic diagram；
Figure 11 is short support arm structure diagram, and wherein Figure 11-1 is that short support arm dimensional structure diagram, Figure 11-2 are
Short support arm plane schematic diagram；
Figure 12 is the attachment structure schematic diagram of partial view I and III parts in Fig. 1, represents draw money on credit brace and hinge hole
Ball-joint structure diagram；
Figure 13 is the attachment structure schematic diagram of partial view II parts in Fig. 1, and wherein Figure 13-1 is foldable stock and can
Fold quarter butt articulated joint structure diagram, Figure 13-2 is the articulated structure unfolded state floor map, Figure 13-3 is that this is hinged
Structure folded state floor map；
Figure 14 is the attachment structure schematic diagram of partial view IV parts in Fig. 1, wherein Figure 14-1 be foldable stock with it is short
Support arm articulated structure folded state floor map, Figure 14-2 are foldable stock and short support arm articulated structure unfolded state
Floor map；
Figure 15 is two rack structure schematic diagrames；
Figure 16 is gear-rack drive structure diagram；
Longitudinal drag-line schematic diagram between two soft nets of antenna metal of Figure 17；
In figure：1- main shafts, 2- slidably spindle collars, 3- fixed main shaft rings, the foldable stocks of 4-, the foldable quarter butts of 5-, 6-
Short support arm, 7- draw money on credit brace, 8- articulated joints I, 9- articulated joint II, 10- articulated joint III, 11- articulated joint IV, 12- articulated joint V,
13- hinge holes, 14- flexural pivot connection devices, 15- tips hole, 16- hinge holes, 17- bar holes, 18- are hinged bulb, 19- racks, 20- spiral shells
Pit, 21- gears, 22- drag-lines, the soft wire side of 23- metals.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
Illustrate the implementation of the present invention by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Refering to attached drawing, structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating specification
Revealed content so that those skilled in the art understands and reads, is not limited to the enforceable restriction item of the present invention
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, it should all still fall and obtain and can contain in disclosed technology contents
In the range of lid.Meanwhile cited position restriction term in this specification, be merely convenient to narration understand rather than to
The enforceable range of the present invention is limited, relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as
The enforceable scope of the present invention.
Embodiment when 8 foldable stocks are connected on each slidably spindle collar is shown below：
As shown in Figure 1, it is a kind of the complete of Satellite Unfurlable Antenna truss structure based on main shaft provided by the present invention
Unfolded state schematic diagram, a foldable stock and a foldable quarter butt form a support frame, in total 16 support ribs
Frame wherein 8 are circumferentially biased to top radiation expansion centered on main shaft, is in addition circumferentially biased to lower section spoke for 8 centered on main shaft
Expansion is penetrated, the skeleton for being biased to radiation expansion below the skeleton and deviation adjacent thereto of top radiation expansion provides mutually support,
To form stable deployed configuration.
As shown in Fig. 2, it is that the deployable antenna truss structure of the present invention only retains 8 supports for being biased to top radiation expansion
Structure diagram during skeleton, every support frame are all made of foldable stock 4 and foldable quarter butt 5, foldable stock 4 with
Slidably spindle collar 2 is hinged, and slidably spindle collar 2 is set on main shaft 1, and short branch is also associated on foldable stock 4
Brace 6, foldable stock 4 to be supported to be biased to the angle of top, short 6 other end of support arm is hinged on one with fixed main shaft ring 3
It rises.Another 8 support frames are hinged on another slidably radiation circumferentially deploying below deviation symmetrical on spindle collar 2, two
Slidably 2 relative rotation of spindle collar, 22.5 ° of settings, make the articulated joint I of its periphery be staggered, so that every is biased to lower section and is unfolded
Two support frames being unfolded all above deviation adjacent thereto of support frame among pass through.
As shown in figure 3, it is unit status change schematic diagram during the expansion of inventive antenna truss structure, with reference to this
Illustrate expansion process：From driving mechanism drive under folded state close to two of 1 both ends of main shaft slidably spindle collar 2 to master
The middle slip of axis 1, so as to foldable stock 4 be supported to gradually spread out under the cooperation of short support arm 6, court during every two folded states
To opposite adjacent foldable stock 4 during expansion, gradually contract far from distance between the slidably endpoint of spindle collar 2
It is small, but be connected to foldable stock 4 and foldable quarter butt 5 and (be hinged on one with another foldable folding of stock 4 under folded state
Rise) on brace 7 of drawing money on credit length it is constant, under 7 impetus of brace of drawing money on credit, foldable quarter butt 5 also gradually spread out until and
The foldable stock 4 hinged with it is in same linear state.
As shown in Figure 4,5, it is two slidably 2 schematic diagrames of spindle collar, Fig. 4-1 is slidably spindle collar front view, figure
4-2 is the A direction views of Fig. 4-1, Fig. 5-1 be another slidably spindle collar front view, Fig. 5-2 be Fig. 5-1 B direction views.
Each slidably 2 periphery of spindle collar is circumferentially evenly distributed with 8 articulated joint I 8, also has tip hole 15 in ring body, to master
Rack 19 inside axis 1 by tip axis connection together.Attached drawing 6 is the floor map of two fixed main shaft rings 3, each fixed
3 periphery of spindle collar is also axially evenly distributed with 8 articulated joints, and also have in ring body makes its phase to fix the fixed main shaft ring 3
To the tip hole 15 that main shaft 1 does not rotate, the dowel across 1 outer wall of main shaft and tip hole 15 can be used in fixed form.
As shown in fig. 7, being 1 structure diagram of main shaft, 1 cylindrical sidewall lower semisection of main shaft is opened there are one bar hole 17, with
There are two adjacent bar holes 17 for its opposite another side wall upper semisection distribution, and the length of bar hole 17 is no more than main shaft 1
Centre position, bar hole 17 are the connection outside seams that slidably tip axis of spindle collar 2 and internal rack 19 is passed through and slid along
Gap, therefore the length limitation of the bar hole 17 slidably maximum slidably range of spindle collar 2, with short support arm 6 foldable
Support Position on stock 4 is used for determining together the deployable angle of maximum of support frame.
As shown in figure 8, it is foldable 4 structure diagram of stock, one end is with articulated joint II 9, the other end with hinged
Head III 10, is additionally provided with hinge hole 16 at two on the body of rod, is used for articulated joint II 9 apart near hinge hole 16 and short support arm 6
It is hinged, it is used for connecting with brace 7 of drawing money on credit apart near hinge hole 16 with articulated joint III 10, distance L1 and short support arm 6 in figure
When the sum of length must not exceed antenna truss structure folded state slidably spindle collar with away from its apart from remote fixed main shaft ring it
Between length；As shown in figure 9, it is foldable 5 structure diagram of quarter butt, one end is with articulated joint IV 11, the other end with auxiliary
Help the threaded hole 20 of the soft net of fixed antenna metal, also have hinge hole 16 on the body of rod, between hinge hole 16 and articulated joint IV 11 away from
It is equal with the distance between hinge hole 16 and articulated joint III 10 L2 in attached drawing 8 from L3.
As shown in Figure 10, it is 7 structure diagram of brace of drawing money on credit, both ends have hinged bulb 18；As shown in figure 11, it is short
6 structure diagram of support arm, it is short 6 planar structure of support arm that wherein 11-1, which is short 6 dimensional structure diagram of support arm, Figure 11-2,
Schematic diagram, short 6 one end of support arm have certain curved with articulated joint II 9, the other end with articulated joint V 12, articulated joint V 12
Degree, makes articulated position offset the body of rod of short support arm 6, so as to make short support arm 6 and foldable stock 4 that can be folded to complete patch
It is combined.
As shown in figure 12, it is the attachment structure schematic diagram of partial view I and III parts in Fig. 1, wherein I is brace 7 of drawing money on credit
With foldable 5 connecting portion of quarter butt, III is draw money on credit brace 7 and foldable 4 connecting portion of stock, and two position connection structures are identical.
In figure, the tip axis of flexural pivot connection device 14 is rotatably inserted in hinge hole 16, the end of flexural pivot connection device 14 and 7 end of brace of drawing money on credit
18 flexural pivot of hinged bulb in portion is connected together.
As shown in figure 13, be the attachment structure schematic diagram of partial view II parts in Fig. 1, represent foldable stock 4 with can
5 connecting portion of quarter butt is folded, wherein Figure 13-1 is 5 articulated joint structure diagram of foldable stock 4 and foldable quarter butt, Figure 13-2
Be the bright face schematic diagram of the articulated structure fully unfolded position, Figure 13-3 it is the articulated structure folded state floor map.Such as figure
Shown, when foldable stock 4 and foldable quarter butt 5 are fully deployed, expanded angle maximum is defined as 180 °, the group both so as to make
It is combined into the support frame of a long straight rod-shaped；When foldable stock 4 and foldable 5 folding of quarter butt, the two is bent to parastate, with
Antenna truss structural volume when reducing folded state to greatest extent.
As shown in figure 14, be the attachment structure schematic diagram of partial view IV parts in Fig. 1, represent foldable stock 4 with it is short
6 connecting portion of support arm, wherein Figure 14-1 be foldable stock 4 with short 6 articulated structure folded state floor map of support arm,
Figure 14-2 is foldable stock 4 and short 6 articulated structure unfolded state floor map of support arm.As shown in the figure, at antenna truss
When folding state, short support arm 6 fits together completely with foldable stock.
As shown in figure 15, it is 19 structure diagram of rack, wherein Figure 15-1 is the dimensional structure diagram of rack 19, figure
15-2 is first 19 three-view diagram of rack, including Figure 15-2a be side view, Figure 15-2b be rearview, Figure 15-2c is vertical view,
Figure 15-3 is second 19 three-view diagram of rack, including Figure 15-3a be side view, Figure 15-3b be rearview, Figure 15-3c is to overlook
Figure.As shown in the figure, two racks 19 are formed all from the flank of tooth and with the curved rear with 1 cylinder wall surface of main shaft, one of them
Rack 19 only has a tip axis with the cooperation of 1 bar hole 17 of main shaft, another rack 19 has two and matches with 1 bar hole 17 of main shaft
The tip axis of conjunction.As shown in figure 16, be gear-rack drive structure diagram, 21 center of gear has driving hole, to transmission
Axis coordinates, and gear 21 drives two toothed racks 19 relatively close or separate when rotating, and rack 19 is by passing through the item on 1 wall shell of main shaft
Slidably spindle collar 2 is slided along main shaft 1 for the tip axis drive in shape hole 17, so as to drive the expansion of antenna truss support frame.
As shown in figure 17, longitudinal drag-line schematic diagram between two soft nets of antenna metal when being the expansion of antenna truss structure,
Between the soft wire side 23 of two metals, multiple tracks drag-line 22 is longitudinally connected with, the soft wire side 23 of metal is supplied to using the pulling force of drag-line 22
Necessity of spherical cambered surface is kept to pull power.
Illustrate each part dimension and each hinge hole location determination rule below by concrete numerical value embodiment, predetermined antenna is set
It is as follows to count parameter：Main axis length 1500mm, folded state antenna truss total length 2000mm will realize diameter under unfolded state
The antenna of 4800mm.Because actual installation space needs, slidably spindle collar apart from main shaft top need reserved certain space to
Fixed main shaft ring is installed, as reserved 150mm, foldable long pole length is 1600mm, and foldable quarter butt maximum length is
1000mm, when it is 4800mm to realize antenna deployment diameter, it also is contemplated that actual installation space needs, and sets slidably spindle collar
Maximum slidably to apart from main shaft midpoint 50mm, can push away to obtain foldable stock expansion at this time according to three side relational expression of right angled triangle
Afterwards 65 ° with the angle of main shaft, setting fixed main shaft ring apart from main shaft endpoint 50mm, so as on fixed main shaft ring with short support arm
Hinged articulated joint I can be acquired away from foldable stock vertical line distance, be represented with m, and the point that hangs down is away between articulated joint 2 on foldable stock
Distance can also acquire, and be represented with n, long away from the distance between hinge hole nearer articulated joint II and articulated joint II on foldable stock
The sum of length of degree and short support arm is equal to 1300mm, then short support arm lengths are represented byAnd numerical value x can root
According toIt acquires (m, n have been acquired)；Set on foldable quarter butt hinge hole apart from articulated joint IV away from
It is y from length value, has hereinbefore explained brace of drawing money on credit with the hinge hole of foldable stock link position on foldable stock
The length of articulated joint III and the equal length of hinge hole articulated joint IV on foldable quarter butt on foldable quarter butt are all
Y, therefore, brace distance of drawing money on credit can be acquired also according to angular relationship, and process is common horizontal solid geometry solution procedure, no longer
It repeats, only in this formulas for calculating：
After acquiring y values, the value of 2000-2y is long support arm lengths numerical value.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (9)
1. a kind of Satellite Unfurlable Antenna truss structure based on main shaft, which is characterized in that tool there are one main shaft (1), two can
Slide spindle collar (2), two fixed main shaft rings (3), multiple foldable stocks (4), multiple foldable quarter butts (5), multiple short branch
Brace (6), multiple braces of drawing money on credit (7), the main shaft (1) is the hollow cylinder for having certain wall thickness；The slidably main shaft
Ring (2) is to be set in the annulus that cylindrical type main shaft (1) outer surface can be slided along main shaft (1), and ring body outside wall surface is circumferential uniformly to divide
It is furnished with multiple articulated joint I (8)；The fixed main shaft ring (3) is fixedly disposed at the annulus of cylindrical type main shaft (1) outer surface,
Ring body outside wall surface is circumferentially evenly distributed with multiple articulated joint I (8)；The foldable stock (4) is to form support satellite antenna face
Truss structure skeleton length section, foldable stock (4) one end is equipped with hinged with articulated joint I (8) on slidably spindle collar (2)
Articulated joint II (9) together, the other end are equipped with the articulated joint III (10) to link together with the foldable quarter butt (5), can
It folds and is additionally provided with two hinge holes (16) on the body of rod of stock (4)；The foldable quarter butt (5) is to form support satellite antenna face
Truss structure skeleton short section, foldable quarter butt (5) one end is equipped with hinged with foldable stock (4) articulated joint III (10)
Articulated joint IV (11) together, the other end are equipped with the device for fixed antenna wire side, are gone back on the body of rod of foldable quarter butt (5)
Equipped with hinge hole (16)；The short support arm (6) for antenna truss structure expansion during push foldable stock (4) open up
Open and foldable stock (4) supported to stablize under antenna truss structure fully unfolded position, one end of short support arm (6) be equipped with
Articulated joint II (9) hinged articulated joint I (8) on fixed main shaft ring (3), the other end be equipped with on foldable stock (4) from
Articulated joint II (9) is apart from the hinged articulated joint V (12) of near hinge hole (16)；The brace of drawing money on credit (7) is in day
Foldable quarter butt (5) is pushed to be unfolded during the expansion of line truss structure and support can under antenna truss structure fully unfolded position
Fold the stabilization of quarter butt (5), both ends are equipped with hinged bulb (18), one end on foldable stock (4) from articulated joint III
(10) ball-joint is carried out apart near hinge hole (16), the other end carries out flexural pivot with the hinge hole (16) on foldable quarter butt (5)
It connects.
2. the Satellite Unfurlable Antenna truss structure according to claim 1 based on main shaft, which is characterized in that described two
Slidably spindle collar (2) articulated joint I (8) is staggeredly set on main shaft (1), makes each hinged of slidably spindle collar (2)
Head I (8) is just corresponding among another slidably two articulated joint I (8) of spindle collar (2), described two fixed main shafts
Ring (3) respectively it is fixed be set in main shaft (1) by two close end, the articulated joint I (8) of each fixed main shaft ring (3) with away from its compared with
It is overlapped in articulated joint I (8) axial direction on remote slidably spindle collar (2).
3. the Satellite Unfurlable Antenna truss structure according to claim 2 based on main shaft, which is characterized in that foldable length
Bar (4), foldable quarter butt (5), brace of drawing money on credit (7) and short support arm (6) the body of rod be circular pin or square pole.
4. the Satellite Unfurlable Antenna truss structure according to claim 2 based on main shaft, which is characterized in that foldable length
The articulated joint III (10) of bar (4) one end and the articulated joint IV (11) of foldable quarter butt (5) one end are by only can be in 0-180 ° of range
The mode of interior relative rotation is hinged；The short support arm (6) is with foldable stock (4) to can be folded into parallel be tightly attached to
The articulated manner of state together links together；The hinged bulb (18) at brace of drawing money on credit (7) both ends is hinged with by flexural pivot
Put respectively on the hinge hole (16) and foldable quarter butt (5) near with a distance from articulated joint III (10) on foldable stock (4)
Hinge hole (16) carries out ball-joint, the foldable stock (4) and corresponding with foldable quarter butt (5) of connection per root long support arm (7)
Another foldable stock (4) be connected on different slidably spindle collars (2).
5. according to Satellite Unfurlable Antenna truss structure of the claim 1-4 any one of them based on main shaft, which is characterized in that
The quantity of articulated joint I (8) is all 8 on the slidably spindle collar (2) and fixed main shaft ring (3), the foldable stock (4)
Quantity for 16, the quantity of the foldable quarter butt (5) is 16, and the quantity of the short support arm (6) is 16, the length
The quantity of support arm (7) is 16.
6. the Satellite Unfurlable Antenna truss structure according to claim 5 based on main shaft, which is characterized in that foldable length
Bar (4) is determined with hinge hole (16) position on foldable quarter butt (5) by following rules：Short support arm (6) and foldable stock (4)
Articulated position on foldable stock (4) the sum of the length of articulated joint II (9) and short support arm (6) length be equal to antenna purlin
Slidably spindle collar (2) and the length away from it between remote fixed main shaft ring (3) during frame structure folded state；It draws money on credit brace
(7) with the articulated position of foldable stock (4) on foldable stock (4) length of articulated joint III (10) with it is foldable short
The equal length of hinge hole (16) articulated joint IV (11) on foldable quarter butt (5) on bar (5).
7. the Satellite Unfurlable Antenna truss structure according to claim 6 based on main shaft, which is characterized in that described to be based on
The expansion process of the Satellite Unfurlable Antenna truss structure of main shaft uses gear-rack drive mechanism, including a gear (21) and
Two racks (19), main shaft (1) upper semisection and lower semisection are respectively provided with bar hole (17), the rack (19) phase one on the other
To being arranged on, main shaft (1) is internal, and is affixed on slidably spindle collar (2) with the bar hole (17) through main shaft (1)
The tip, each rack (19) is fixedly connected with slidably spindle collar (2) by the tip, and the gear (21) is arranged on two racks
(19) it is intermediate, two racks (19) to be driven along the axially opposing separate of main shaft (1) or to be relatively close to, so as to drive two can slide
Dynamic spindle collar (2) along the axially opposing separate of main shaft (1) or is relatively close to.
8. the Satellite Unfurlable Antenna truss structure according to claim 7 based on main shaft, which is characterized in that the main shaft
(1) one end of the separate articulated joint IV (11) of both ends and foldable quarter butt (5) is equipped with the device of the auxiliary soft net of fixed antenna metal,
Such as threaded hole (20).
9. the Satellite Unfurlable Antenna truss structure according to claim 8 based on main shaft, which is characterized in that unfolded state
Under, the longitudinal drag-line (22) parallel with main shaft can be used between the soft wire side of upper and lower two metals (23), pulling force is provided mutually, so that
The soft wire side of antenna metal (23) shape of spherical cambered surface is more stable.
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| CN201711455584.1A CN108183304B (en) | 2017-12-28 | 2017-12-28 | A kind of Satellite Unfurlable Antenna truss structure based on main shaft |
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| CN201711455584.1A CN108183304B (en) | 2017-12-28 | 2017-12-28 | A kind of Satellite Unfurlable Antenna truss structure based on main shaft |
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| CN108183304B CN108183304B (en) | 2019-01-08 |
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| EP0807991A1 (en) * | 1996-05-15 | 1997-11-19 | Trw Inc. | Telescoping deployable antenna reflector and method of deployment |
| EP1077506A1 (en) * | 1999-06-18 | 2001-02-21 | TRW Inc. | Compact mesh stowage for deployable perimeter truss reflectors |
| CN107453017A (en) * | 2017-07-24 | 2017-12-08 | 西安电子科技大学 | A kind of space plane film antenna deployable mechanism |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61157102A (en) * | 1984-12-28 | 1986-07-16 | Nec Corp | Expansion type antenna reflecting mirror |
| US4825225A (en) * | 1987-01-27 | 1989-04-25 | Waters Terrance J | Hyperboloidal deployable space antenna |
| EP0807991A1 (en) * | 1996-05-15 | 1997-11-19 | Trw Inc. | Telescoping deployable antenna reflector and method of deployment |
| EP1077506A1 (en) * | 1999-06-18 | 2001-02-21 | TRW Inc. | Compact mesh stowage for deployable perimeter truss reflectors |
| CN107453017A (en) * | 2017-07-24 | 2017-12-08 | 西安电子科技大学 | A kind of space plane film antenna deployable mechanism |
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| Publication number | Publication date |
|---|---|
| CN108183304B (en) | 2019-01-08 |
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Effective date of registration: 20221101 Address after: 201615 Room 301-34, Building 6, No. 1158, Jiuting Central Road, Jiuting Town, Songjiang District, Shanghai Patentee after: Shanghai Gesi Aerospace Technology Co.,Ltd. Address before: Room 318, Science and Technology Finance Center, No. 39 Yingcui Road, High tech Zone, Jining City, Shandong Province, 273519 Patentee before: Zhao Fangtao |