CN108134215A - A kind of month base expandable truss formula cable mesh reflector antenna - Google Patents
A kind of month base expandable truss formula cable mesh reflector antenna Download PDFInfo
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- CN108134215A CN108134215A CN201711388879.1A CN201711388879A CN108134215A CN 108134215 A CN108134215 A CN 108134215A CN 201711388879 A CN201711388879 A CN 201711388879A CN 108134215 A CN108134215 A CN 108134215A
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- node
- rod piece
- floral disc
- circumferential
- truss formula
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/005—Damping of vibrations; Means for reducing wind-induced forces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
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- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of month base expandable truss formula cable mesh reflector antennas, it is characterised in that：Expandable truss formula support construction, cable mesh reflector, damping shock absorber, walking mechanism, the cable mesh reflector is stretched at the top of expandable truss formula support construction, the damping shock absorber is fixed on expandable truss formula support construction bottom node, and the walking mechanism is fixed on damping shock absorber bottom.Present invention can apply on lunar surface high-precision, the Practical Project of bigbore reflector antenna, suitable for lunar surface operating mode, meet working performance requirement, there is good storage to compare, overall stability and dynamic performance.Structure light wt of the present invention, form is simple, and flexible design is widely used, and has good dual-use market prospects.
Description
Technical field
The invention belongs to aerospace craft Structural Engineering correlative technology fields, and in particular to a kind of month deployable purlin of base
Posture cable mesh reflector antenna.
Background technology
Current moon base antenna scheme is to be based on dipole antenna, since its is simple in structure, can actually be met
The miniaturization of spacecraft payload, light-weighted requirement.But this kind of antenna is limited always by its antenna form, antenna
Gain and the ability for receiving signal are limited.In contrast, moon base reflector antenna orients aperture antenna and is arranged on lunar surface
On antenna new concept, have better directionality, the gain of bigger and better signal transmitting and receiving performance, meanwhile, the moon base reflection
Surface antenna is other than the advantage with aforementioned moon base low-frequency antenna, the not shielding by earth ionosphere and attenuation and artificial
The interference of electromagnetic signal, the wavelength band that can be received in addition to that can receive earth's surface, can also receive and differentiate faint cosmic radio radiation
Signal (frequency 107Hz~103Hz)；Month revolutions are synchronous with revolution, always with the same face towards the earth, can be observed on lunar surface
Its area is openr than ground, can receive more celestial body signals；The moon is more more stable than artificial satellite operating, and there is no artificial satellites
Tremble, menology gravity is only the 1/6 of earth's surface gravity, it is possible to provide more preferable boundary condition and more large platform.Compared to continental rise and spaceborne
There is reflector antenna the observation visual field of bigger and wavelength band, lunar surface mechanical environment to be more advantageous to realizing heavy caliber reflecting surface.
It can be formed more with China ground VLBI (Very Long Baseline Interferometry very long baselines interference technique) net
The big moon ground VLBI nets, either relay transmission, survey of deep space, military field or radio astronomy, space science field,
There is epoch-making meaning.Therefore, these above-mentioned advantages show that this new concept of moon base reflector antenna is a month base antenna development
Next major fields.
Month base reflector antenna is a new research field there is presently no application example, domestic and international correlative study and
Documents and materials are all seldom.Start with from reflector antenna deployable structure system, consider the lightweight of space deployable structure, high storage
Than and the requirements such as real work performance and topography of lunar surface and gravity environmental factor and be unfolded on lunar surface will
It asks, needs using rational deployable structure form.The deployable reflecting surface antenna technology that can be used for reference only has spaceborne reflecting surface
Antenna, and the operating mode of spaceborne reflector antenna has very big difference with lunar surface operating mode.
Therefore it is suitable for the moon base reflector antenna of lunar surface operating mode in order to obtain, and meets certain working performance and want
It asks, a kind of novel moon base expandable truss formula cable mesh reflector antenna structure form is proposed, to open up moon base reflector antenna
This engineering technology and field of scientific study.
Invention content
Present invention solves the technical problem that it is：To fill up the blank of the prior art, the present invention provides a kind of novel moon base
Expandable truss formula cable mesh reflector antenna structure passes through reasonable Arrangement expandable truss formula support construction topological relation, setting
Damping device and walking mechanism, to ensure that this antenna can smoothly be unfolded on lunar surface and with good mechanics stabilization
Property and working performance.
The technical scheme is that：A kind of month base expandable truss formula cable mesh reflector antenna, including expandable truss
Formula support construction 1, cable mesh reflector 2 and walking mechanism 4；1 top of expandable truss formula support construction connects with cable mesh reflector 2
It connects, bottom is connect with walking mechanism 4；Walking mechanism 4 is moved as expandable truss formula support construction 1 is unfolded in moonscape
It is dynamic；Expandable truss formula support construction 1 drives cable mesh reflector 2 to be carried out at the same time expansion upon deployment.
The present invention further technical solution be：The expandable truss formula support construction 1 includes center top floral disc section
Point 7, sliding floral disc node 8, centre bottom floral disc node 6, central upright stanchion 5 rod piece identical with several outer diameters；Three floral disc sections
Point generally one is discoid, and edge is uniformly provided with several radial protrusions, is equipped with axis pin in protrusion, axis pin axis is parallel to floral disc
It plane and is mutually perpendicular to floral disc node internal diameter, torsional spring is cased on each axis pin；Rod piece on floral disc node with projecting through pin
Axis is hinged, and rod piece can be rotated down along axis pin during gathering；If rod piece outer diameter is d, 7 internal diameter of center top floral disc node
For r1,8 internal diameter of sliding floral disc node is r2, and 6 internal diameter of centre bottom floral disc node is r3, r1 ＞ r2 ＞ r3, and r1 >=r2+d, r2 >=
R3+d, to ensure that rod piece along during axis pin rotation whole gatherings downwards, will not be touched mutually, all in vertical shape between rod piece.In
Floral disc node 7 and sliding floral disc node 8 are respectively and fixedly connected with and are gone here and there with 5 upper and lower ends of central upright stanchion, centre bottom floral disc node 6 at the top of the heart
It is connected on central upright stanchion 5.
The present invention further technical solution be：The identical rod piece of several outer diameters is divided into several groups, and each group includes
Rod piece quantity is identical, and the frame of each group of rod piece composition shape when being fully deployed is identical；Each group of rod piece is included radially
Chord member part 13, radial direction lower edge rod piece 12, elevationally outward radial direction diagonal brace rod piece 14, rod piece 9, circumferential upper cord member 19, circumferential lower edge
Rod piece 18 and circumferential vertical bar 15；Elevationally outward 9 upper and lower ends of rod piece respectively with outside top node 11 and exterior bottom section
Point 10 is affixed；13 one end of radial direction upper cord member is hinged with a protrusion on center top floral disc node 7, and the other end is pushed up with outside
Portion's node 11 is hinged；12 one end of radial direction lower edge rod piece is hinged with a protrusion on centre bottom floral disc node 6, and the protrusion with
The raised radial line direction that radial direction upper cord member 13 is connected on center top floral disc node 7 overlaps；12 other end of radial direction lower edge rod piece
It is hinged with exterior bottom node 10；Circumferential 15 upper and lower ends of vertical bar are respectively and fixedly connected with circumferential top node 17 and circumferential bottom is saved
Point 16；Circumferential upper cord member 19 and circumferential lower edge rod piece 18 are mutually parallel, circumferential 19 both ends of upper cord member respectively with outside top
Node 11 and circumferential top node 17 are hinged, and circumferential 18 both ends of lower edge rod piece are saved respectively with exterior bottom node 10 and circumferential bottom
Point 16 is hinged；When expandable truss formula support construction 1 is fully deployed, radial direction upper cord member 13, radial direction lower edge rod piece 12, outside are erected
Rectangle is formed to rod piece 9 and central upright stanchion 5,14 axis of radial direction diagonal brace rod piece is overlapped with rectangle diagonal.
The present invention further technical solution be：The expandable truss formula support construction 1 is when being fully deployed, several bars
The frame entirety of part composition is made of six identical equilateral triangle bodies in regular hexagon body, each equilateral triangle body by
Two groups of rod pieces are mutually butted to be formed, when expandable truss formula support construction 1 collapses, center top floral disc node 7 and centre bottom
Floral disc node 6 is moved upwards as central upright stanchion 5 is whole along its axis, sliding floral disc node 8 along 5 axis of central upright stanchion occur to
Lower relative motion；Rod piece carries out expansion gathering along respective axis pin respectively, and when complete collapse, all rod pieces are vertically.
The present invention further technical solution be：The walking mechanism includes damping shock absorber 3, wheel fork structure 21, three-dimensional
Wheel hub 22 and wheel 25；The wheel fork structure 21 is U-shaped, and 21 openend of wheel fork structure is connect with three-dimensional wheel hub 22, wheel 25
It is connect with three-dimensional wheel hub 22,21 blind end bottom outside of wheel fork structure passes through damping with 1 bottom of expandable truss formula support construction
Damper 3 connects.
The present invention further technical solution be：The quantity of the walking mechanism is more than or equal to 3, and installation site ensures device
It can keep flat and stablize forward.
Invention effect
The technical effects of the invention are that：(1) suitable for lunar surface operating mode, meet working performance requirement.It is damped by setting
Vibration insulating system and walking mechanism can meet the requirement being unfolded on lunar surface；The topology design of expandable truss support construction is more
Menology gravity is utilized well improves driveability and the dynamic performance being unfolded on lunar surface.
(2) good storage ratio.It is designed by rational structural topology and the optimum layout chord member and montant length, it can be with
A good storage ratio is obtained, to meet the limitation of fairing of launch vehicle space and the requirement of expansion bore.
(3) good overall stability.Pass through the preload of radial direction diagonal brace rod piece and circumferential each node and rod piece and torsional spring
The design of power and node limiting plate forms a complete deployable structure with good overall stability.
(4) good dynamic performance regulating power.By setting damping shock absorber and cable mesh reflector and deployable
The tuning of lattice supporting framework so that complete structural system is formed in reflector antenna working condition and is cooperated, is protected
Card has good dynamic performance.
(5) structure design is flexible, is widely used.Can specific antenna structure be carried out according to different payload demands
Design, is easy to adjusted design parameter, flexibility and changeability, while the reflection of bore bigger can be expanded by multiple combination of monomers
Surface antenna has good market prospects.
Description of the drawings
Fig. 1 is the unfolded state shaft side figure of a kind of month base expandable truss formula cable mesh reflector antenna of the invention；
Fig. 2 is the exhibition of the expandable truss support construction of a kind of month base expandable truss formula cable mesh reflector antenna of the invention
Open state shaft side figure；
Fig. 3 is the receipts of the expandable truss support construction of a kind of month base expandable truss formula cable mesh reflector antenna of the invention
Hold together state shaft side figure；
Fig. 4 is in the expandable truss support construction of a kind of month base expandable truss formula cable mesh reflector antenna of the invention
Between be unfolded process shaft side figure；
Fig. 5 is the list of the expandable truss support construction of a kind of month base expandable truss formula cable mesh reflector antenna of the invention
Principle of Process schematic diagram is unfolded in Pin rectangular frames；
Fig. 6 is the walking principle signal of the walking mechanism of a kind of month base expandable truss formula cable mesh reflector antenna of the invention
Figure
Fig. 7 is that seven combination of monomers of a kind of month base expandable truss formula cable mesh reflector antenna of the invention are extended to more
Heavy caliber reflecting surface lattice supporting framework schematic diagram.
Fig. 8 is rod piece and node and perimeter bar, the connection diagram of radial direction rod piece in outside in contraction process
Fig. 9 is that center sliding floral disc node and center top floral disc node contact with each other schematic diagram upon deployment
Figure 10 is 7 structure diagram of floral disc node
Figure 11 is the structure diagram of interior joint 10 of the present invention
Figure 12 is the structure diagram of interior joint 11 of the present invention
Figure 13 is the structure diagram of interior joint 16 of the present invention
Figure 14 is the structure diagram of interior joint 17 of the present invention
Figure 15 is the structure diagram of medial end portions connector 20 of the present invention
In figure：In 1- expandable truss formulas support construction, 2- cable mesh reflectors, 3- damping shock absorbers, 4- walking mechanisms, 5-
Heart vertical guide rod piece, 6- centre bottom floral discs node, 7- center top floral discs node, 8- centers sliding floral disc node, outside 9-
Side vertical bar, 10- exterior bottoms node, 11- outside tops node, 12- radial direction lower edges rod piece, 13- radial directions upper cord member,
14- radial direction diagonal braces rod piece, 15- circumferential directions vertical bar, 16- circumferential directions bottom node, 17- circumferential directions top node, 18- circumferential direction lower booms
Part, 19- circumferential directions upper cord member, 20- end couplings, 21- wheel forks structure, 22- three-dimensionals wheel hub, 23- main axles, 24- wheel shaft,
25- wheels.
Specific embodiment
Referring to Fig. 1-Figure 15, the present invention relates to a kind of month base expandable truss formula cable mesh reflector antenna, including deployable
Formwork Support for External structure, cable mesh reflector, damping shock absorber and walking mechanism, the cable mesh reflector are stretched in expandable truss
At the top of formula support construction, the damping shock absorber is fixed on expandable truss formula support construction bottom node, the walking mechanism
It is fixed on damping shock absorber bottom.
The expandable truss formula support construction building block includes：Center vertical guide rod piece, centre bottom floral disc
Node, center top floral disc node, elevationally outward center sliding floral disc node, rod piece, exterior bottom node, outside top section
Point, radial direction lower edge rod piece, radial direction upper cord member, radial direction diagonal brace rod piece, circumferential vertical bar, circumferential bottom node, circumferential top
Node, circumferential lower edge rod piece, circumferential upper cord member, end coupling, axis pin, torsional spring, connection column.
The expandable truss formula support construction, topological characteristic are：
The center vertical guide rod piece both ends and centre bottom floral disc node, center top floral disc node Joint, together
When rod piece in the middle part of put on center sliding and floral disc node and ensure that it can be slided along bar axis direction；The rod piece both ends elevationally outward
With exterior bottom node, outside top node Joint；Wherein three floral disc nodes generally one are discoid, and edge is uniformly set
There are several radial protrusions, transition is carried out by arc-shaped slot between protrusion and protrusion.
The affixed end coupling in radial direction lower edge rod piece both ends, and pass through axis pin and centre bottom floral disc node, outer
Side bottom node is hinged；The affixed end coupling in radial direction upper cord member both ends, and pass through axis pin and spent with center top
Disk node, outside top node are hinged；The affixed end coupling in radial direction diagonal brace rod piece both ends, and pass through axis pin in
Heart sliding floral disc node, exterior bottom node are hinged；The axis pin axis is respectively along circumferential position where respective nodes
Tangential direction；
The center vertical guide rod piece, elevationally outward rod piece, radial direction lower edge rod piece, radial direction upper cord member, radial direction diagonal brace
Rod piece is connected by respective nodes, forms single Pin rectangular frames with diagonal diagonal brace；Bottom, top and the cunning at the center
It is circumference equal dividing six direction to move floral disc node, connects corresponding rod piece respectively, forms six list Pin rectangles radially
Frame, and share same center vertical guide rod piece；
The circumferential direction vertical bar both ends and circumferential bottom node, circumferential top node are affixed；The circumferential direction lower edge rod piece
The affixed end coupling in both ends, and pass through axis pin and be hinged with exterior bottom node, circumferential bottom node；The circumferential direction is winded up
The affixed end coupling in rod piece both ends, and pass through axis pin and be hinged with outside top node, circumferential top node；The axis pin
Axis is respectively along the diametric(al) of circumferential position where respective nodes；By accordingly connecting, by the six Pin rectangular frames
Circumferentially form whole truss structure.
Expandable truss formula support construction type of drive is：The centre bottom floral disc node, center top floral disc section
Torsional spring is respectively provided at the axis pin of point and center sliding node, ensures radial direction bottom rod piece, radial top rod piece and radial direction respectively tiltedly
The driving force that strut member can be rotated up along corresponding axis pin；The circumferential bottom node and the pin of circumferential top node
Torsional spring is respectively provided at axis, ensures the drive that circumferential lower edge rod piece and circumferential upper cord member can be rotated up along respective pins axis respectively
Power.
Expandable truss formula support construction, the motion mode that expansion is collapsed are：All nodes and vertical bar
It does not relatively rotate during the motion；Under rounding state, all chord members and diagonal brace all keep vertical direction, together
The center sliding floral disc node of Shi Suoshu is in the middle part of the vertical guide rod piece of center, all center floral disc nodes and circumferential direction
Node is upwards collected through and all lateral nodes are packed up downwards；
During expansion, under torsional spring precompressed elasticity power drive, each chord member is rotated along respective axis pin；The center
It slides floral disc node and upward Relative sliding occurs along center vertical guide rod piece；Described simultaneously all center floral disc nodes and
Circumferential node occurs entirety and moves downward, and whole move radially outwards occurs for all lateral nodes；
Final fully unfolded position is provided with postive stop baffle at the node of all chord member respective hinges, by vertical
Direction rotates 90 ° and is locked in place to horizontal；Center sliding floral disc node slide onto at the top of the vertical guide rod piece of center and with
Center top floral disc node is in contact, and the radial direction diagonal brace rod piece is correspondingly positioned on the diagonal of each list Pin rectangular frames at this time；
All bottom nodes are in same bottom plane and all top nodes are in same top planes.
The connection column is fixed on the top node of the expandable truss formula support construction, the cable mesh reflector
It is stretched on connection column and adjusts rope net tension and form required reflector type face；It can be by adjusting post height with control cord
The tension level of net and reflector type face.
The damping shock absorber both ends are respectively and fixedly connected with expandable truss formula support construction and walking mechanism, are unfolded with adjusting
Vibration in journey ensures all bottom nodes of expandable truss formula support construction after being fully deployed all in same bottom plane
On.
The walking mechanism includes wheel fork structure, three-dimensional wheel hub, main axle, secondary wheel shaft, wheel, and three wheels lead to
It crosses secondary wheel shaft with outside two panels three-dimensional wheel hub to be connected, three wheel shafts form a positive triangle shape, and the main axle passes through three-dimensional
Hub centre is connected with wheel fork structure；Ensureing that wheel can be moved along respective next round shaft rotation, three-dimensional wheel hub can be rotated along main axle,
So as to walking and throwing over barrier on rugged lunar surface；
With damping shock absorber bottom Joint at the top of the walking mechanism, plane where walking mechanism wheel is along deployable purlin
The radial direction of frame support structure, to ensure the expansion of lattice supporting framework.
The present apparatus is specifically described below for each attached drawing：
Month base expandable truss formula cable mesh reflector antenna chief component includes (see Fig. 1)：Expandable truss formula branch
Support structure 1, cable mesh reflector 2, damping shock absorber 3, walking mechanism 4.Cable mesh reflector 2 is stretched in expandable truss formula support knot
The top of structure 1.Damping shock absorber 3 is fixed on 1 bottom node of expandable truss formula support construction.Walking mechanism 4 is fixed on damping
The bottom of damper 3.
The building block of expandable truss formula support construction 1 has (see Fig. 2)：Center vertical guide rod piece 5, centre bottom flower
Disk node 6, center top floral disc node 7, elevationally outward center sliding floral disc node 8, rod piece 9, exterior bottom node 10, outside
Top node 11, radial direction lower edge rod piece 12, radial direction upper cord member 13, radial direction diagonal brace rod piece 14, circumferential vertical bar 15, circumferential bottom
Portion's node 16, circumferential top node 17, circumferential lower edge rod piece 18, circumferential upper cord member 19, end coupling 20 and axis pin, torsion
Spring, connection column.
The topological relation of expandable truss formula support construction 1 has (see Fig. 2)：5 both ends of center vertical guide rod piece and center
Bottom floral disc node 6,7 Joint of center top floral disc node, while center sliding floral disc node 8 is put in the middle part of rod piece and is ensured
It can be slided along bar axis direction；9 both ends of rod piece and exterior bottom node 10,11 Joint of outside top node elevationally outward.
The affixed end coupling 20 in 12 both ends of radial direction lower edge rod piece, and pass through axis pin and centre bottom floral disc node 6, outer
Side bottom node 10 is hinged；The affixed end coupling 20 in 13 both ends of radial direction upper cord member, and pass through axis pin and center top
Floral disc node 7, outside top node 11 are hinged；The affixed end coupling 20 in 14 both ends of radial direction diagonal brace rod piece, and pass through pin
Axis is hinged with center sliding floral disc node 8, exterior bottom node 10；These axis pin axis are respectively along where respective nodes
The tangential direction of circumferential position.
Center vertical guide rod piece 5, elevationally outward rod piece 9, radial direction lower edge rod piece 12, radial direction upper cord member 13, radial direction are tiltedly
Strut member 14 is connected by respective nodes, forms single Pin rectangular frames with diagonal diagonal brace；Bottom, top and the cunning at center
It is circumference equal dividing six direction to move floral disc node 6,7,8, connects corresponding rod piece respectively, forms six list Pin radially
Rectangular frame, and share same center vertical guide rod piece 5.
Circumferential 15 both ends of vertical bar and circumferential bottom node 16, circumferential top node 17 are affixed；Circumferential lower edge rod piece 18
The affixed end coupling 20 in both ends, and pass through axis pin and be hinged with exterior bottom node 10, circumferential bottom node 16；In circumferential direction
The affixed end coupling 20 in 19 both ends of chord member part, and pass through axis pin and cut with scissors with outside top node 11,17 phase of circumferential top node
It connects；These axis pin axis are respectively along the diametric(al) of circumferential position where respective nodes；By accordingly connecting, by described six
Pin rectangular frames circumferentially form whole truss structure 1.
Torsional spring is respectively provided at the axis pin of centre bottom floral disc node 6, center top floral disc node 7 and center sliding node 8,
Ensure that radial direction bottom rod piece 12, radial top rod piece 13 and radial direction diagonal brace rod piece 14 can upwards turn along corresponding axis pin respectively
Dynamic driving force；Torsional spring is respectively provided at the axis pin of circumferential bottom node 16 and circumferential top node 17, ensures circumferential lower edge respectively
The driving force that rod piece 18 and circumferential upper cord member 19 can be rotated up along respective pins axis.
The motion mode that the expansion of expandable truss formula support construction 1 is collapsed has (see Fig. 2,3,4,5)：
All nodes (i.e. 6,7,8,10,11,16,17) and vertical bar (i.e. 5,9,15) do not occur during the motion
It relatively rotates；Under rounding state (see Fig. 3), all chord members (i.e. 12,13,18,19) and diagonal brace 14 all keep vertical direction, simultaneously
Center sliding floral disc node 8 is in 5 middle part of center vertical guide rod piece, all center floral disc nodes (i.e. 6,7,8) and circumferential section
Point (i.e. 16,17) is upwards collected through and all lateral nodes (i.e. 10,11) are packed up downwards (see Fig. 3).
In expansion process (see Fig. 4,5), under torsional spring precompressed elasticity power drive, each chord member (i.e. 12,13,18,19) edge
Respective axis pin rotation；Along center vertical guide rod piece 5 upward Relative sliding occurs for center sliding floral disc node 8；Own simultaneously
Center floral disc node (i.e. 6,7,8) and circumferential node (i.e. 16,17) occur entirety and move downward, and all lateral nodes (i.e. 10,
11) whole move radially outwards occurs.
Final fully unfolded position (see Fig. 2) is provided at the node of all chord member (i.e. 12,13,18,19) respective hinges
Postive stop baffle rotates 90 ° by vertical direction and is locked in place to horizontal；Center sliding floral disc node 8 slides onto center vertical guide
5 top of rod piece is simultaneously in contact with center top floral disc node 7, and the radial direction diagonal brace rod piece 14 is correspondingly positioned at each list Pin rectangles at this time
On the diagonal of frame；All bottom nodes (i.e. 6,10,16) in same bottom plane and all top nodes (i.e. 7,11,
17) in same top planes.
2 form of cable mesh reflector is fixed on deployable with being usually used in the consistent of spaceborne cable mesh reflector antenna, connection column
The top node (i.e. 7,11,17) of Formwork Support for External structure 1, cable mesh reflector are stretched on connection column and adjust rope net tension
Reflector type face needed for being formed；It can be by adjusting post height with the tension level of control cord net and reflector type face.
3 both ends of damping shock absorber are respectively and fixedly connected with expandable truss formula support construction 1 and walking mechanism 4, are unfolded with adjusting
Vibration in journey ensures 1 all bottom nodes of expandable truss formula support construction (i.e. 6,10,16) after being fully deployed all same
In one bottom plane.
Walking mechanism building block includes (see Fig. 6)：Wheel fork structure 21, three-dimensional wheel hub 22, main axle 23, secondary wheel shaft 24,
Wheel 25.Three wheels 25 are connected by secondary wheel shaft 24 with outside two panels three-dimensional wheel hub 22, and three wheel shafts 24 are forming one just
Triangle, main axle 23 are connected across 22 center of three-dimensional wheel hub with wheel fork structure 21；Ensure that wheel 25 can be along respective next round
Axis 24 rotates, and three-dimensional wheel hub 22 can be rotated along main axle 23, so as to which barrier is walked and crossed on rugged lunar surface
Hinder object.Radial direction of the 25 place plane of wheel of walking mechanism 4 along expandable truss support construction 1, to ensure lattice supporting framework 1
Expansion.
It can be by suitably splicing and combining, bigger mouth that seven 1 combination of monomers of expandable truss support construction are extended to
Diameter reflecting surface lattice supporting framework (see Fig. 7).
Node in the present invention is intended for the significant components that component is connect with component, according to the component connected not
Together, shape is slightly different.In the present embodiment, go to illustrate different node structures with reference to the accompanying drawings.
Referring to Figure 11, the first node 10 is the square body on the oblique edge of a wing of both sides band, wherein symmetrical axis direction side is two
Grade is stepped, axis pin is equipped on every step, two axis pin axis are mutually parallel, and hang down with the square body axis of symmetry
Directly；Square body bigger diameter end is provided with through-hole on the direction vertical with rectangular body axis；The oblique edge of a wing in square body both sides is equipped with protrusion,
Axis pin is equipped in raised, torsional spring is cased on each axis pin, the axis and rectangular body axis of square body both sides axis pin are at an angle.
Referring to Figure 12, second of node 11 generally U-shaped, openend is equipped with axis pin, is cased with torsional spring on axis pin, is closing
One upper lateral part at end is equipped with axis pin, is cased with torsional spring on axis pin, axis pin axis is vertical with U-shaped node axis.
Referring to Figure 13, the third generally convex of node 16 is equipped with through-hole, and bottom is equipped with axis pin, axis pin along axis
On be cased with torsional spring.
Referring to Figure 14, the 4th kind of generally convex of node 17, and bottom are equipped with axis pin, and torsional spring, axis pin are cased on axis pin
Axis is parallel with convex node axis.
Referring to Figure 15, the generally square body of end coupling 20 is wherein arranged with two protrusions, two protrusions in one side
On have through-hole, and the axis of two through-holes overlaps.
Detailed complete explanation is carried out to the specific embodiment of the present invention and working characteristics above, but described interior
Hold be only the present invention better embodiment, it is impossible to be considered as the practical range of the present invention, not limiting the present invention.It is every
According to the variation that the present patent application range is done and improvement etc., should all belong within the patent covering scope of the present invention.Except saying
Described in bright book outside technical characteristic, remaining technical characteristic is technology known to those skilled in the art, in order to protrude the wound of the present invention
New feature, details are not described herein for above-mentioned technical characteristic.
Claims (6)
1. a kind of month base expandable truss formula cable mesh reflector antenna, which is characterized in that including expandable truss formula support construction
(1), cable mesh reflector (2) and walking mechanism (4)；At the top of expandable truss formula support construction (1) with cable mesh reflector (2) even
It connects, bottom is connect with walking mechanism (4)；Walking mechanism (4) is with expandable truss formula support construction (1) expansion and in moon table
It moves in face；Expandable truss formula support construction (1) drives cable mesh reflector (2) to be carried out at the same time expansion upon deployment.
2. a kind of month base expandable truss formula cable mesh reflector antenna as described in claim 1, which is characterized in that described to open up
It opens Formwork Support for External structure (1) and includes center top floral disc node (7), sliding floral disc node (8), centre bottom floral disc node
(6), central upright stanchion (5) rod piece identical with several outer diameters；Three floral disc nodes generally one are discoid, and edge is uniformly provided with
Several radial protrusions, protrusion is interior to be equipped with axis pin, and axis pin axis is parallel to floral disc plane and is mutually perpendicular to floral disc node internal diameter, often
Torsional spring is cased on a axis pin；Rod piece is hinged with the axis pin that projects through on floral disc node, and rod piece can be along pin during gathering
Axis rotates down；If rod piece outer diameter is d, center top floral disc node (7) internal diameter is r1, and sliding floral disc node (8) internal diameter is r2,
Centre bottom floral disc node (6) internal diameter is r3, r1 ＞ r2 ＞ r3, and r1 >=r2+d, r2 >=r3+d, to ensure that rod piece is rotated along axis pin
When all collapsing downwards, will not mutually it be touched between rod piece, all in vertical shape.Center top floral disc node (7) and sliding flower
Disk node (8) is respectively and fixedly connected with is serially connected with central upright stanchion (5) with central upright stanchion (5) upper and lower ends, centre bottom floral disc node (6)
On.
3. a kind of month base expandable truss formula cable mesh reflector antenna as claimed in claim 2, which is characterized in that described several
The identical rod piece of outer diameter is divided into several groups, and each group identical comprising rod piece quantity, and the frame of each group of rod piece composition is complete
Shape is identical during expansion；Each group of rod piece includes radial direction upper cord member (13), radial direction lower edge rod piece (12), radial direction diagonal brace rod piece
(14), rod piece (9), circumferential upper cord member (19), circumferential lower edge rod piece (18) and circumferential direction vertical bar (15) elevationally outward；Outside
Vertical bar (9) upper and lower ends are affixed with outside top node (11) and exterior bottom node (10) respectively；Radial direction upper cord member
(13) one end is hinged with a protrusion on center top floral disc node (7), and the other end is hinged with outside top node (11)；Diameter
It is hinged to lower boom part (12) one end and a protrusion on centre bottom floral disc node (6), and the protrusion is spent with center top
The raised radial line direction that radial direction upper cord member (13) is connected on disk node (7) overlaps；Radial direction lower edge rod piece (12) other end with it is outer
Side bottom node (10) is hinged；Circumferential vertical bar (15) upper and lower ends are respectively and fixedly connected with circumferential top node (17) and circumferential bottom
Node (16)；Circumferential upper cord member (19) and circumferential lower edge rod piece (18) are mutually parallel, circumferential upper cord member (19) both ends difference
It is hinged with outside top node (11) and circumferential top node (17), circumferential lower edge rod piece (18) both ends respectively with exterior bottom section
Point (10) and circumferential bottom node (16) are hinged；When expandable truss formula support construction (1) is fully deployed, radial direction upper cord member
(13), radial direction lower edge rod piece (12), elevationally outward rod piece (9) and central upright stanchion (5) composition rectangle, radial direction diagonal brace rod piece (14) axis
Line is overlapped with rectangle diagonal.
4. a kind of month base expandable truss formula cable mesh reflector antenna as described in claims 1 or 2 or 3, which is characterized in that institute
Expandable truss formula support construction (1) is stated when being fully deployed, the frame entirety of several rod piece compositions is in regular hexagon body, by six
A identical equilateral triangle body composition, each equilateral triangle body are mutually butted by two groups of rod pieces and are formed, expandable truss formula
When support construction (1) collapses, center top floral disc node (7) and centre bottom floral disc node (6) are with central upright stanchion (5) entirety
It is moved upwards along its axis, along central upright stanchion (5) axis downward relative motion occurs for sliding floral disc node (8)；Rod piece edge respectively
Respective axis pin carries out expansion gathering, and when complete collapse, all rod pieces are vertically.
5. a kind of month base expandable truss formula cable mesh reflector antenna as described in claim 1, which is characterized in that the walking
Mechanism includes damping shock absorber (3), wheel fork structure (21), three-dimensional wheel hub (22) and wheel (25)；The wheel fork structure (21) is U
Shape, wheel fork structure (21) openend are connect with three-dimensional wheel hub (22), and wheel (25) is connect with three-dimensional wheel hub (22), wheel fork structure
(21) blind end bottom outside is connect with expandable truss formula support construction (1) bottom by damping shock absorber (3).
6. a kind of month base expandable truss formula cable mesh reflector antenna as claimed in claim 5, which is characterized in that the walking
The quantity of mechanism is more than or equal to 3, and installation site ensures that device can keep flat and stablize forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388879.1A CN108134215A (en) | 2017-12-21 | 2017-12-21 | A kind of month base expandable truss formula cable mesh reflector antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388879.1A CN108134215A (en) | 2017-12-21 | 2017-12-21 | A kind of month base expandable truss formula cable mesh reflector antenna |
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| CN108134215A true CN108134215A (en) | 2018-06-08 |
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ID=62392026
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|---|---|---|---|
| CN201711388879.1A Pending CN108134215A (en) | 2017-12-21 | 2017-12-21 | A kind of month base expandable truss formula cable mesh reflector antenna |
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| CN (1) | CN108134215A (en) |
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| CN109638404A (en) * | 2018-10-31 | 2019-04-16 | 西安电子科技大学 | A kind of novel three-layer network shape deployable antenna truss structure with wave beam forming |
| CN109659701A (en) * | 2018-12-17 | 2019-04-19 | 西北工业大学 | A kind of truss-like synchronization deployable antenna |
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| CN114447614A (en) * | 2022-01-11 | 2022-05-06 | 西安电子科技大学 | Annular net-shaped deployable antenna and application |
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| CN109638404A (en) * | 2018-10-31 | 2019-04-16 | 西安电子科技大学 | A kind of novel three-layer network shape deployable antenna truss structure with wave beam forming |
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| CN110828964A (en) * | 2019-09-30 | 2020-02-21 | 中国空间技术研究院 | Torsion spring driven single-layer regular hexagon conical deployable truss antenna structure |
| CN110828964B (en) * | 2019-09-30 | 2022-03-04 | 中国空间技术研究院 | Torsion spring driven single-layer regular hexagon conical deployable truss antenna structure |
| CN110767977A (en) * | 2019-10-12 | 2020-02-07 | 西安电子科技大学 | Vertical cable adjusting device for cable net antenna |
| CN114447614A (en) * | 2022-01-11 | 2022-05-06 | 西安电子科技大学 | Annular net-shaped deployable antenna and application |
| CN114447614B (en) * | 2022-01-11 | 2023-03-24 | 西安电子科技大学 | Annular net-shaped deployable antenna and application |
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Application publication date: 20180608 |