CN107284692B - A kind of pyrolysis coupling expandable truss system suitable for space plate aerial - Google Patents
A kind of pyrolysis coupling expandable truss system suitable for space plate aerial Download PDFInfo
- Publication number
- CN107284692B CN107284692B CN201710405393.8A CN201710405393A CN107284692B CN 107284692 B CN107284692 B CN 107284692B CN 201710405393 A CN201710405393 A CN 201710405393A CN 107284692 B CN107284692 B CN 107284692B
- Authority
- CN
- China
- Prior art keywords
- truss
- freedom
- pedestal
- disc spring
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 20
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 79
- 210000004907 gland Anatomy 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 125000000852 azido group Chemical group *N=[N+]=[N-] 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000008646 thermal stress Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/222—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles for deploying structures between a stowed and deployed state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/42—Arrangements or adaptations of power supply systems
- B64G1/44—Arrangements or adaptations of power supply systems using radiation, e.g. deployable solar arrays
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Support Of Aerials (AREA)
Abstract
A kind of pyrolysis coupling expandable truss system suitable for space plate aerial, including rectangular frame and expandable truss with hot decoupling ability；The pyrolysis coupling function of under(-)chassis connector can be used for discharging the plate aerial face internal degree of freedom, and the installation foundation of expandable truss is maintained not change under high/low temperature condition, it is ensured that in-orbit reliable expansion becomes stable girders support system.Expandable truss is collapsed in launching phase, bears the load of launching phase；It can reliably be unfolded after entering the orbit, provide enough expansion rigidity and precision for plate aerial.The present invention overcomes the existing Antenna support structure space severe temperatures irretentive technical deficiency of type face precision off field, can carry out pyrolysis coupling with antenna, discharges thermal stress, meets the needs of antenna is to high-precision, high rigidity deployable support construction.
Description
Technical field
The present invention relates to a kind of deployable sub-truss systems.
Background technique
Spacecraft large size load such as antenna, solar wing etc. needs folding to be collapsed into lesser volume in transmitting, bears each
The examination of kind mechanical environment condition；After entering the orbit, need to reach certain rigidity of structure after expansion locking, in vacuum high/low temperature ring
Need under border keep higher type face precision.
Launching phase, truss, which folds, to be collapsed at the antenna back side, is connected with aerial panel, is born the load of launching phase；It defends
After star is entered the orbit, truss expansion is locked into a spatial configuration, and the rigidity and precision for antenna are kept.Due to the in-orbit flight of antenna
When, the temperature field of whole system is severe and uneven, and the deformation of antenna and truss causes truss internal stress larger,
The deformation of aerial panel and truss is constrained each other, and precision is difficult to keep, and is not able to satisfy the in-orbit high thermal stability of high-precision antenna
It is required that.If temperature environment further change it is also possible to because internal stress it is excessive caused by truss structure destroy.
In ground large antenna product, also have in installation interface through release freedom degree come caused by acclimatization variation
Deformation.But it is this design first is that thermal adaptability require it is lower, second is that coupling stiffness require it is lower, be not able to satisfy vehicle launch
When the storage of large-scale planar array antenna is required and is born the requirement of launching phase load, while adaptive capacity to environment is limited.
Summary of the invention
The technical problem to be solved by the present invention is overcome the deficiencies in the prior art, the present invention provides a kind of suitable for space
The pyrolysis coupling expandable truss system of plate aerial realizes that the Large Spacecraft antenna wing collapses transmitting and is unfolded to be locked into after entering the orbit
The function of stable support structure overcomes the existing Antenna support structure space severe temperatures irretentive technology of type face precision off field
Deficiency can carry out pyrolysis coupling with antenna, discharge thermal stress, meet antenna to the need of high-precision, the deployable support construction of high rigidity
It asks.
The technical scheme adopted by the invention is that: a kind of pyrolysis coupling expandable truss system suitable for space plate aerial
System, including expandable truss, rectangular frame；Rectangular frame includes that dissociate connector, two-freedom of pedestal connecting rod, single-degree-of-freedom is free
Connector, anchor tip；Single-degree-of-freedom, which is dissociated, to be connected between the free connector of connector, two-freedom and anchor tip by pedestal connecting rod
It connects；Rectangular frame is connect by anchor tip, the free connector of single-degree-of-freedom, the free connector of two-freedom with antenna structure plate；Its
In, anchor tip and antenna structure plate are connected, and the free connector of single-degree-of-freedom is released respectively along antenna width direction, length direction
Single-degree-of-freedom constraint, the two-freedom connector that dissociates releases along antenna structure board width and two freedom degrees of length direction about
Beam；Expandable truss includes four bars, and four bar one end are mounted on external fixation device same position by rotatable mechanism,
The other end dissociate connector, the anchor tip of connector, two-freedom that dissociate respectively with single-degree-of-freedom is connect by rotating device, deployable
Truss has the function of unfolded.
The single-degree-of-freedom is dissociated there are two connectors, is separately mounted on rectangular frame diagonal line two-end-point；Anchor tip,
The free connector of two-freedom is separately mounted on another diagonal line two-end-point of rectangular frame.
Two bars have unfolded function in the expandable truss, and another two bars are not foldable；Not folding two
Root bar is fixed on external fixation device；Dissociate with a single-degree-of-freedom connector, two respectively for the end of not folding two bars
The free connector of freedom degree passes through rotating device and connects；The end for having two connecting rods of unfolded function connects with fixation respectively
The free connector of head, another single-degree-of-freedom passes through rotating device and connects.
The anchor tip includes the first truss pedestal, the first tabletting, the first fixing screws, the first gland, the first joint
Bearing and the first connecting shaft；First oscillating bearing outer ring is mounted in the first truss pedestal installation through-hole and by installation through-hole
Step structure positioning；First gland is flange arrangement, is mounted in the first truss pedestal installation through-hole, ring flange and the first purlin
Frame pedestal is fixed, and flange arrangement barrel end compresses the first oscillating bearing outer ring；First one end of the connecting shaft is fixed on antenna structure
On plate, the other end is inserted into the first oscillating bearing inner ring, the first joint shaft from the side that the first truss pedestal does not install the first gland
Inner ring is held to position by the shaft shoulder；The first connection axial end and the first oscillating bearing inner ring are pushed down in first tabletting；First fixing screws
In the first gland centre bore, across the through-hole of the first tabletting, by being threadably mounted at the first connecting shaft along the through-hole of axis
Interior, head compresses the first tabletting.
The single-degree-of-freedom connector that dissociates includes the second connecting shaft, first end cover, the first disc spring tabletting, the second tabletting, the
Two glands, the second truss pedestal, the second fixing screws, the first free sliding block, second joint bearing, the first disc spring；First disc spring,
First disc spring tabletting is mounted in truss base installing hole, and first disc spring one end is pushed down in the first disc spring tabletting；First end cover installation
At the second truss base installing hole port, the first disc spring other end is compressed；First free sliding block is mounted on the installation of truss pedestal
In hole, the first disc spring tabletting is compressed, second joint bearing, second joint bearing outer ring one are installed in the first free center hole
Side passes through step structure positioning in the first free center hole；Second gland is mounted in the first free center hole, and one
The side pressure tight second joint bearing outer ring other side, the other end resist the second truss base installing hole top inner wall；Second connecting shaft
It is vertically fixed on antenna structure plate, passes through first end cover centre bore, the first disc spring, the first disc spring tabletting centre bore, end peace
In second joint bearing inner race, the second fixing screws are mounted on the second connecting shaft end and compress second by the second tabletting
Oscillating bearing；A raised word structure is mounted on the word on the second truss base installing hole side wall on first free sliding block outer wall
In slot.
The two-freedom connector that dissociates includes third connecting shaft, second end cover, the second disc spring tabletting, third tabletting, the
Three glands, third truss pedestal, third fixing screws, the second free sliding block, third oscillating bearing, the second disc spring；Second disc spring,
Second disc spring tabletting is mounted in truss base installing hole, and second disc spring one end is pushed down in the second disc spring tabletting；Second end cover installation
At third truss base installing hole port, the second disc spring other end is compressed；Second free sliding block is mounted on the installation of truss pedestal
In hole, the second disc spring tabletting is compressed, third oscillating bearing, third oscillating bearing outer ring one are installed in the second free center hole
Side passes through step structure positioning in the second free center hole；Third gland is mounted in the second free center hole, and one
The side pressure tight third oscillating bearing outer ring other side, the other end resist third truss base installing hole top inner wall；Third connecting shaft
It is vertically fixed on antenna structure plate, passes through second end cover centre bore, the second disc spring, the second disc spring tabletting centre bore, end peace
In third oscillating bearing inner ring, third fixing screws are mounted on third connecting shaft end and compress third by third tabletting
Oscillating bearing；Second free sliding block outer wall is cylindrical surface, and the second free sliding block occurs relatively in third truss base installing hole
Movement.
The pedestal connecting rod is carbon fibre pipe fitting.
The first truss pedestal, the second truss pedestal are connected by pedestal connecting rod between third truss pedestal.
The advantages of the present invention over the prior art are that:
(1) expandable truss of the invention is a spatial four-bar mechanism, it can be achieved that collapsing function to the expansion of slab construction,
And Shi Keyu celestial body is collapsed in parallel close to storage is small in size；Meet spaceborne large-scale load to high rigidity, high-precision, greatly storage ratio
The demand of deployable supporting mechanism has the bearing capacity of launching phase, while meeting in-orbit high-precision and high thermal stability
It is required that.
(2) rectangular frame of the invention passes through 1 group of anchor tip, the free connector of 2 groups of single-degree-of-freedoms, 1 group of two-freedom trip
It is connect from connector with antenna structure plate.Wherein, anchor tip and antenna structure plate are connected, the free connector difference of 2 groups of single-degree-of-freedoms
It releases and is constrained along the single-degree-of-freedom of antenna length and width direction, the free connector of two-freedom releases wide along antenna structure plate
Two freedom degrees of degree and length direction constrain；In the case where lock state is unfolded, expandable truss and rectangular frame may make up one
Stable quadrangular truss structure, configuration is simple, but structural support rigidity with higher.
(3) rectangular frame of the invention is connect by 4 groups of free connectors with antenna structure plate, and passes through disc spring in junction
Group, which pre-tightens, realizes biggish coupling stiffness, while ensure that the connection precision along antenna structure plate normal direction.
(4) present invention is suitable for needing the space large size flat plane antenna of in-orbit expansion on spacecraft, can provide height after expansion
Rigidity, high-precision structural support, and good plane can be kept in severe temperature alternating environment.
Detailed description of the invention
Fig. 1 is the schematic diagram of the medium-sized face degree freedom degree release of the present invention
Fig. 2 is mechanism deploying status diagram of the present invention；
Fig. 3 is mechanism rounding state schematic diagram of the present invention；
Fig. 4 is the structure chart of anchor tip of the present invention；
Fig. 5 is the structure chart of the free connector of single-degree-of-freedom of the present invention；
Fig. 6 is the truss understructure figure of the free connector of single-degree-of-freedom of the present invention；
Fig. 7 is that the free connector of single-degree-of-freedom of the present invention removes the structure chart after truss pedestal；
Fig. 8 is the truss understructure figure of the free connector of two-freedom of the present invention；
Fig. 9 is the structure chart of the free connector of two-freedom of the present invention.
Specific embodiment
As shown in Figure 1, being expandable truss unfolded state, as shown in Fig. 2, being expandable truss rounding state.
A kind of pyrolysis coupling expandable truss system suitable for space plate aerial, including expandable truss 3, rectangular frame
5；Rectangular frame 5 includes that pedestal connecting rod, single-degree-of-freedom are dissociated connector 2,7, and two-freedom dissociates connector 4, anchor tip 1；First
Single-degree-of-freedom connector 2, the second single-degree-of-freedom dissociate connector 4 and the anchor tip 1 of connector 7, two-freedom that dissociate that dissociate passes through pedestal
Connecting rod connection, is separately mounted on four angle points of rectangular frame 5.Connecting shaft and antenna structure plate 6 in four connectors are connected,
Truss pedestal 11,26,46 in four connectors is linked into an integrated entity by pedestal connecting rod, rectangular frame 5 is constituted, as deployable
The installation foundation of truss.Pedestal connecting rod is carbon fibre pipe fitting.
Rectangular frame 5 passes through anchor tip 1, the free connector 2 of the first single-degree-of-freedom, the free connector 7, two of the second single-degree-of-freedom
The free connector 4 of freedom degree is connect with antenna structure plate 6, and realizes biggish coupling stiffness by disc spring preload in junction,
It ensure that the connection precision along 6 normal direction of antenna structure plate.Wherein, anchor tip 1 and antenna structure plate 6 are connected, and first is single
The free connector 2 of freedom degree releases the single-degree-of-freedom constraint along antenna width direction, and the free connector 7 of the second single-degree-of-freedom releases
Single-degree-of-freedom along 6 length direction of antenna structure plate constrains, and the free connector 4 of two-freedom is released along 6 width of antenna structure plate
It is constrained with two freedom degrees of length direction, as shown in Figure 3.
Expandable truss 3 is a spatial four-bar mechanism.One end of four bars is concatenated by articulated manner in expandable truss 3
Together；There are two bars to have unfolded function, another two bars are not foldable；Not folding two bars are fixed on external solid
Determine on device (celestial body)；The end of not folding two bars is free with the free connector 7 of the second single-degree-of-freedom, two-freedom respectively
Connector 4 is connected by a hinge；The end for having two connecting rods of unfolded function is single freely with anchor tip 1, first respectively
Free connector 2 is spent to be connected by a hinge.
In the case where lock state is unfolded, expandable truss 3 and rectangular frame 5 may make up a stable rectangular pyramid truss knot
Structure, structural support rigidity with higher.In transmit state, two bars for having unfolded function fold, certainly by two
It is that axis pulls antenna structure plate 6 by the hinge spent between free connector 4 and the free connector 7 of the second single-degree-of-freedom and celestial body, it can
Expanded truss 3 is collapsed together with antenna structure plate 6 and is pressed on external fixation device (celestial body), bears the load of launching phase；
Expansion locking constitutes a stable rectangular pyramid truss structure after entering the orbit, and guarantees the expansion rigidity of antenna structure plate 6.
Anchor tip 1 is as shown in Figure 4.Anchor tip 1 includes the first truss pedestal 11, the fixed spiral shell of the first tabletting 12, first
Follow closely the 13, first gland 14, the first oscillating bearing 15 and the first connecting shaft 16；First oscillating bearing, 15 outer ring is mounted on the first truss
In 11 installation through-hole of pedestal and by the step structure positioning in installation through-hole, the first gland 14 is flange arrangement, is mounted on the
In one truss pedestal, 11 installation through-hole, ring flange is fixed by screw and the first truss pedestal 11, flange arrangement barrel end pressure
Tight first oscillating bearing, 15 outer ring；First connecting shaft, 16 one end is fixed on antenna structure plate 6, and the other end is from the first truss pedestal
11 do not install side insertion 15 inner ring of the first oscillating bearing of the first gland 14, and 15 inner ring of the first oscillating bearing is fixed by the shaft shoulder
Position；15 inner ring of 16 end face of the first connecting shaft and the first oscillating bearing is pushed down in first tabletting 12；First fixing screws 13 are located at first
In 14 centre bore of gland, across the through-hole of the first tabletting 12, by being threadably mounted at the first connecting shaft 16 along the through-hole of axis,
Head compresses the first tabletting 12；It is missed to adapt to 6 form variations of antenna structure plate and antenna structure plate 6 and the opposite of rectangular frame 5
Difference has used the first oscillating bearing 15, to ensure that rectangular frame 5 forms a preferable mounting plane.
As shown in figure 5, single-degree-of-freedom is dissociated, connector 2,7 includes the second connecting shaft 21, first end cover 22, the first disc spring tabletting
23, the second tabletting 24, the second gland 25, the second truss pedestal 26 as shown in Figure 6, the second fixing screws 27, the first free sliding block
28, second joint bearing 29, the first disc spring 210.As shown in fig. 7, being that the single-degree-of-freedom after the removal of truss pedestal 26 is dissociated to connect
First 2,7 structure chart.
First disc spring 210, the first disc spring tabletting 23 are mounted in 26 mounting hole of truss pedestal, and the first disc spring tabletting 23 is pushed down
First disc spring, 210 one end；First end cover 22 is mounted at 26 mounting hole port of the second truss pedestal, and it is another to compress the first disc spring 210
One end；First free sliding block 28 is mounted in 26 mounting hole of truss pedestal, compresses the first disc spring tabletting 23, installation the in centre bore
Two oscillating bearings 29,29 outer ring side of second joint bearing is by step structure positioning in the first free 28 centre bore of sliding block, separately
Side is compressed by the second gland 25 being mounted on the first free 28 centre bore of sliding block；Second gland 25 is cylindrical structure, is led to
Being threadably mounted in the first free 28 centre bore of sliding block on side wall is crossed, end plane resists 26 mounting hole top of the second truss pedestal
Portion's inner wall；Second connecting shaft 21 is vertically fixed on antenna structure plate 6, pass through 22 centre bore of first end cover, the first disc spring 210,
First disc spring tabletting, 23 centre bore, end are mounted in 29 inner ring of second joint bearing, and the second fixing screws 27 are mounted on second
21 end of connecting shaft simultaneously compresses second joint bearing 29 by the second tabletting 24；
Second connecting shaft 21 and 29 inner ring of second joint bearing, the second tabletting 24,27 one of the second fixing screws, with second
It can relatively rotate between 29 outer ring of oscillating bearing, the first free sliding block 28 and second end cover 25, to adapt to antenna plate shape
The relative error of shape deviation and antenna plate and frame.When the extraneous load formed by transmitting, thermal environment is less than the first disc spring 210
When preload, the relative position of the second truss pedestal 26 and the second connecting shaft 21 and antenna structure plate 6 is fixed.Work as the external world
When load is greater than the preload of the first disc spring 210, between the second truss pedestal 26 and the second connecting shaft 21 and antenna structure plate 6
Generation Relative sliding, release the internal stress in truss rod, it is ensured that the base shape of truss installa-tion.
Fig. 5 is the free connector of single-degree-of-freedom, the first free sliding block 28, as shown in fig. 7, a word structure quilt raised on outer wall
Flat recess constraint on second truss pedestal, 26 mounting hole side wall, as shown in fig. 6, limiting free sliding block 28 can only occur along a word
Left and right displacement occurs for slot direction.
As shown in figure 9, two-freedom dissociates, connector 4 includes third connecting shaft 41, second end cover 42, the second disc spring tabletting
43, third tabletting 44, third gland 45, third truss pedestal 46, third fixing screws 47, the second free sliding block 48, third are closed
Bearings 49, the second disc spring 410；Second disc spring 410, the second disc spring tabletting 43 are mounted in 46 mounting hole of truss pedestal, and second
410 one end of the second disc spring is pushed down in disc spring tabletting 43；Second end cover 42 is mounted at 46 mounting hole port of third truss pedestal, is compressed
Second disc spring, 410 other end；Second free sliding block 48 is mounted in 46 mounting hole of truss pedestal, compresses the second disc spring tabletting 43,
Third oscillating bearing 49 is installed, 49 outer ring side of third oscillating bearing passes through the second free cunning in second free 48 centre bore of sliding block
Step structure positions in 48 centre bore of block；Third gland 45 is mounted in the second free 48 centre bore of sliding block, and one end compresses third
The 49 outer ring other side of oscillating bearing, the other end resist 46 mounting hole top inner wall of third truss pedestal；Third connecting shaft 41 is vertical
It is fixed on antenna structure plate 6, passes through 42 centre bore of second end cover, the second disc spring 410,43 centre bore of the second disc spring tabletting, end
Portion is mounted in 49 inner ring of third oscillating bearing, and third fixing screws 47 are mounted on 41 end of third connecting shaft and by third pressure
Piece 44 compresses third oscillating bearing 49；Second free 48 outer wall of sliding block is cylindrical surface, the second free sliding block 48 and third truss bottom
There are gap between 46 mounting holes of seat, the second free sliding block 48 is mounted in 46 mounting hole of third truss pedestal, and opposite fortune occurs
It is dynamic.
Two-freedom dissociates, and connector 4 is consistent with the free structure of connector 2,7 of single-degree-of-freedom, and difference is: two-freedom trip
Only the second of the free connector 4 of installation circular hole, two-freedom dissociates on third truss pedestal 46 (as shown in Figure 8) from connector 4
Sliding block 48 is cylindrical shape, and the second free sliding block 48 is mounted in 46 mounting hole of third truss pedestal, so that two-freedom connector 4
In 46 mounting hole of third truss pedestal in-plane moving occurs for the second free sliding block 48.
Space solid lubrication is used on the part interface of opposite sliding.It, can be with by the rigidity Design of disc spring 210,410
Skid force effectively between the opposite moving parts of control two.
When system is in-orbit undergoes severe and complicated thermal environment or when antenna itself operational heat, antenna structure plate 6 will not
It can avoid stretching in ground generating surface or dilatancy, antenna structure plate 6 and expandable truss mechanism be since heterogeneity phantom unevenness will
Unmatched thermal deformation occurs, the sliding by 4 free connectors along the direction that freedom degree discharges is discharged heat and answered by system at this time
Power guarantees that the distortion due to caused by thermal stress does not occur and even destroys for antenna structure plate 6 and expandable truss 3, maintains truss
The type face of mechanism is to maintain the pointing accuracy of antenna array.
Unspecified part of the present invention belongs to technology well known to those skilled in the art.
Claims (8)
1. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial, which is characterized in that including expandable truss
(3), rectangular frame (5)；Rectangular frame (5) includes pedestal connecting rod, single-degree-of-freedom is dissociated connector (2,7), two-freedom dissociates and connects
Head (4), anchor tip (1)；Single-degree-of-freedom is dissociated between connector (2,7), two-freedom free connector (4) and anchor tip (1)
It is connected by pedestal connecting rod；Rectangular frame (5) is dissociated connector (2,7) by anchor tip (1), single-degree-of-freedom, two-freedom is swum
It is connect from connector (4) with antenna structure plate (6)；Wherein, anchor tip (1) and antenna structure plate (6) are connected, and single-degree-of-freedom is free
Connector (2,7) releases the single-degree-of-freedom constraint along antenna width direction, length direction respectively, and two-freedom dissociates connector (4)
It releases and is constrained along two freedom degrees of antenna structure plate (6) width and length direction；Expandable truss (3) includes four bars,
Four bar one end are mounted on external fixation device same position by rotatable mechanism, and the other end is free with single-degree-of-freedom respectively
Connector (2,7), two-freedom dissociate connector (4), anchor tip (1) is connected by rotating device, and expandable truss (3) has exhibition
Unfold azido functional.
2. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 1, feature
Be: the single-degree-of-freedom is dissociated there are two connector (2,7), is separately mounted on rectangular frame (5) diagonal line two-end-point；It is fixed
Connector (1), two-freedom free connector (4) are separately mounted on another diagonal line two-end-point of rectangular frame (5).
3. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 1 or 2, special
Sign is: two bars have unfolded function in the expandable truss (3), and another two bars are not foldable；It is not folding
Two bars are fixed on external fixation device；Dissociate with a single-degree-of-freedom connector respectively for the end of not folding two bars
(2,7), two-freedom free connector (4) pass through rotating device and connect；The end part for having two connecting rods of unfolded function
It is connect with anchor tip (1), another single-degree-of-freedom free connector (2,7) by rotating device.
4. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 1 or 2, special
Sign is: the anchor tip (1) includes the first truss pedestal (11), the first tabletting (12), the first fixing screws (13), first
Gland (14), the first oscillating bearing (15) and the first connecting shaft (16)；First oscillating bearing (15) outer ring is mounted on the first truss
In pedestal (11) installation through-hole and pass through the step structure positioning in installation through-hole；First gland (14) is flange arrangement, installation
In first truss pedestal (11) installation through-hole, ring flange and the first truss pedestal (11) are fixed, flange arrangement barrel end pressure
Tight first oscillating bearing (15) outer ring；First connecting shaft (16) one end is fixed on antenna structure plate (6), and the other end is from the first purlin
Frame pedestal (11) does not install side insertion the first oscillating bearing (15) inner ring of the first gland (14), and the first oscillating bearing (15) is interior
Circle is positioned by the shaft shoulder；The first connecting shaft (16) end face and the first oscillating bearing (15) inner ring are pushed down in first tabletting (12)；First
Fixing screws (13) are located in the first gland (14) centre bore, pass through the through-hole of the first tabletting (12), by being threadably mounted at the
For one connecting shaft (16) along the through-hole of axis, head compresses the first tabletting (12).
5. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 4, feature
Be: the single-degree-of-freedom dissociate connector (2,7) include the second connecting shaft (21), first end cover (22), the first disc spring tabletting
(23), the second tabletting (24), the second gland (25), the second truss pedestal (26), the second fixing screws (27), the first free sliding block
(28), second joint bearing (29), the first disc spring (210)；First disc spring (210), the first disc spring tabletting (23) are mounted on truss
In pedestal (26) mounting hole, the first disc spring (210) one end is pushed down in the first disc spring tabletting (23)；First end cover (22) is mounted on second
At truss pedestal (26) mounting hole port, the first disc spring (210) other end is compressed；First free sliding block (28) is mounted on truss bottom
In seat (26) mounting hole, the first disc spring tabletting (23) is compressed, second joint bearing is installed in the first free sliding block (28) centre bore
(29), second joint bearing (29) outer ring side passes through step structure positioning in the first free sliding block (28) centre bore；Second pressure
Lid (25) is mounted in the first free sliding block (28) centre bore, and one end compresses second joint bearing (29) outer ring other side, another
End resists second truss pedestal (26) mounting hole top inner wall；Second connecting shaft (21) is vertically fixed on antenna structure plate (6),
Across first end cover (22) centre bore, the first disc spring (210), first disc spring tabletting (23) centre bore, end is mounted on the second pass
In bearings (29) inner ring, the second fixing screws (27) are mounted on the second connecting shaft (21) end and are pressed by the second tabletting (24)
Tight second joint bearing (29)；A raised word structure is mounted on the second truss pedestal (26) on first free sliding block (28) outer wall
In flat recess on mounting hole side wall.
6. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 5, feature
Be: the two-freedom dissociate connector (4) include third connecting shaft (41), second end cover (42), the second disc spring tabletting (43),
Third tabletting (44), third gland (45), third truss pedestal (46), third fixing screws (47), the second free sliding block (48),
Third oscillating bearing (49), the second disc spring (410)；Second disc spring (410), the second disc spring tabletting (43) are mounted on truss pedestal
(46) in mounting hole, the second disc spring (410) one end is pushed down in the second disc spring tabletting (43)；Second end cover (42) is mounted on third truss
At pedestal (46) mounting hole port, the second disc spring (410) other end is compressed；Second free sliding block (48) is mounted on truss pedestal
(46) in mounting hole, the second disc spring tabletting (43) is compressed, third oscillating bearing is installed in the second free sliding block (48) centre bore
(49), third oscillating bearing (49) outer ring side passes through step structure positioning in the second free sliding block (48) centre bore；Third pressure
Lid (45) is mounted in the second free sliding block (48) centre bore, and one end compresses third oscillating bearing (49) outer ring other side, another
End resists third truss pedestal (46) mounting hole top inner wall；Third connecting shaft (41) is vertically fixed on antenna structure plate (6),
Across second end cover (42) centre bore, the second disc spring (410), second disc spring tabletting (43) centre bore, end is mounted on third pass
In bearings (49) inner ring, third fixing screws (47) are mounted on third connecting shaft (41) end and are pressed by third tabletting (44)
Tight third oscillating bearing (49)；Second free sliding block (48) outer wall is cylindrical surface, and the second free sliding block (48) is at third truss bottom
Relative motion occurs in seat (46) mounting hole.
7. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 1 or 2, special
Sign is: the pedestal connecting rod is carbon fibre pipe fitting.
8. a kind of pyrolysis coupling expandable truss system suitable for space plate aerial according to claim 5 or 6, special
Sign is: the first truss pedestal (11), the second truss pedestal (26) pass through pedestal connecting rod between third truss pedestal (46)
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405393.8A CN107284692B (en) | 2017-05-31 | 2017-05-31 | A kind of pyrolysis coupling expandable truss system suitable for space plate aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405393.8A CN107284692B (en) | 2017-05-31 | 2017-05-31 | A kind of pyrolysis coupling expandable truss system suitable for space plate aerial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107284692A CN107284692A (en) | 2017-10-24 |
| CN107284692B true CN107284692B (en) | 2019-09-06 |
Family
ID=60094709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405393.8A Active CN107284692B (en) | 2017-05-31 | 2017-05-31 | A kind of pyrolysis coupling expandable truss system suitable for space plate aerial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284692B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112533B (en) * | 2019-06-05 | 2021-08-03 | 哈尔滨工业大学 | Rigid-flexible combined supported inflatable unfolding type Z-shaped folding array antenna |
| CN111409862B (en) * | 2020-03-10 | 2022-08-12 | 上海卫星工程研究所 | Structure and method for mounting load and star sensor of satellite |
| CN112429275B (en) * | 2020-12-10 | 2022-07-29 | 北京空间机电研究所 | Spacing formula space rotation locking and releasing mechanism |
| CN113734467A (en) * | 2021-11-05 | 2021-12-03 | 北京微焓科技有限公司 | Satellite solar wing |
| CN115626308B (en) * | 2022-09-28 | 2024-09-20 | 西安空间无线电技术研究所 | Gravity unloading system of two-stage unfolding double-shaft tracking satellite-borne antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167165A (en) * | 2011-04-11 | 2011-08-31 | 哈尔滨工业大学 | Seven-revolute pair extensible unit and space extensible mechanism using same |
| CN102358435A (en) * | 2011-08-18 | 2012-02-22 | 哈尔滨工业大学 | Truss unit capable of being foldable to launch and being convenient to assemble on orbit |
| CN105799950A (en) * | 2016-03-18 | 2016-07-27 | 燕山大学 | Single-degree-of-freedom overconstrained shear-type deployable unit and space deployable mechanisms composed of same |
| CN105923170A (en) * | 2016-04-26 | 2016-09-07 | 北京空间飞行器总体设计部 | Repeatable folding and unfolding truss structure and cell element thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7963084B2 (en) * | 2005-08-29 | 2011-06-21 | Donald Merrifield | Deployable triangular truss beam with orthogonally-hinged folding diagonals |
-
2017
- 2017-05-31 CN CN201710405393.8A patent/CN107284692B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167165A (en) * | 2011-04-11 | 2011-08-31 | 哈尔滨工业大学 | Seven-revolute pair extensible unit and space extensible mechanism using same |
| CN102358435A (en) * | 2011-08-18 | 2012-02-22 | 哈尔滨工业大学 | Truss unit capable of being foldable to launch and being convenient to assemble on orbit |
| CN105799950A (en) * | 2016-03-18 | 2016-07-27 | 燕山大学 | Single-degree-of-freedom overconstrained shear-type deployable unit and space deployable mechanisms composed of same |
| CN105923170A (en) * | 2016-04-26 | 2016-09-07 | 北京空间飞行器总体设计部 | Repeatable folding and unfolding truss structure and cell element thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107284692A (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107284692B (en) | A kind of pyrolysis coupling expandable truss system suitable for space plate aerial | |
| Ma et al. | Recent advances in space-deployable structures in China | |
| EP3290344B1 (en) | Toroidal support structures | |
| CN102167165B (en) | Seven-revolute pair extensible unit and space extensible mechanism using same | |
| CN107685880B (en) | Expandable combined unit and large-scale space expandable mechanism composed of same | |
| Thomson | The AstroMesh deployable reflector | |
| CN103840245B (en) | A kind of plane formula expandable truss and stepwise development method thereof | |
| US10407189B1 (en) | Spacecraft exoskeleton truss structure | |
| CN106450649A (en) | H-structure spaceborne-antenna unfoldable mechanism | |
| CN104078741A (en) | Novel scissor-based annular array extensible mechanism | |
| CN107449581B (en) | Free degree release device for wind tunnel free flight experiment | |
| Nanjangud et al. | Towards robotic on-orbit assembly of large space telescopes: Mission architectures, concepts, and analyses | |
| CN110562499B (en) | Wall-mounted main frequency adjustable variable-section one-rocket multi-satellite launching moonlet structure | |
| CN114435627B (en) | Satellite structure and satellite assembly method | |
| CN113675574B (en) | Bidirectional flat plate folding and unfolding unit and bidirectional flat plate folding and unfolding antenna mechanism | |
| Shore et al. | A new generation of deployable optics for Earth observation using small satellites | |
| CN104816841B (en) | Satellite unlocks separator | |
| CN112298607B (en) | Modularized satellite platform for realizing high agility maneuvering capability | |
| CN113581491A (en) | 6U cube star with standardized platform | |
| CN115610701A (en) | Extensible three-dimensional foldable truss bearing structure for space | |
| RU2349517C1 (en) | Passive docking assembly | |
| Zheng et al. | A novel space large deployable paraboloid structure with power and communication integration | |
| CN212267874U (en) | On-orbit deployable main bearing structure suitable for microsatellite | |
| CN110758773B (en) | Spacecraft and spring pre-tightening high-rigidity locking device thereof | |
| Raffin et al. | CFRP platform and hexapod mount for the Array of MIcrowave Background Anisotropy (AMiBA) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |