CN107741334A - The large-scale folding exhibition antenna experimental rig of microgravity - Google Patents
The large-scale folding exhibition antenna experimental rig of microgravity Download PDFInfo
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- CN107741334A CN107741334A CN201710991108.5A CN201710991108A CN107741334A CN 107741334 A CN107741334 A CN 107741334A CN 201710991108 A CN201710991108 A CN 201710991108A CN 107741334 A CN107741334 A CN 107741334A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
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Abstract
The invention provides a kind of large-scale folding exhibition antenna experimental rig of microgravity, round guide is fixedly mounted on the underface of crossbeam using regulating bolt and adjusting sleeve, and line slideway is fixed on below round guide by regulating bolt, the limited block other end is installed in line slideway one end counterweight pulley is installed, two linear sliders are front and rear to be arranged on line slideway, and in driving mechanism installing plate bottom, mounting plane is provided with encoder component, driving pulley support, pressure sensor assembly and drive mechanism.Encoder swing arm is installed in encoder component installation axle；Driving pulley support is mounted below driving pulley, is bolted one section from two groups of dynamic synchronous pulley components and two groups of timing belt installing mechanisms, two groups of drive mechanism pull bars and is fixedly mounted on timing belt, the other end links together with height adjusting block.The present invention is reasonable in design, and operation quality is good, and operation reliably meets the folding exhibition test requirements document of large-scale antenna microgravity.
Description
Technical field
The present invention relates to space flight mechanical field, specifically a kind of large-scale folding exhibition antenna experimental rig of microgravity.
Background technology
In the space product R＆D process in China, large-scale antenna folding exhibition experiment process is one basic essential
Content of the test.Because the spacecraft in space is in state of weightlessness when track is run, therefore exist for the large-scale antenna of research and development
Can smoothly deploy in space be researching antenna structural reliability a key factor, therefore just need on ground to face large-scale day
Line carries out certain expansion experiment, and then preferably artificial antenna is referred to as testing in the microgravity state of space orbital environment.Together
When, the expansion movement locus of satellite antenna is also to test the key factor that ground-support equipment considers.At present, for large-scale
Labyrinth antenna expansion testing equipment it is more rare, under normal circumstances and selection air-flotation type developing test device to one
A little small-sized antenna expansion carry out microgravity test.Air-flotation type developing test device is had some limitations simultaneously, and structure is moved
It is the problems such as dynamic inconvenient, precision is relatively low, inapplicable to be applied to large-scale antenna expansion experiment process.Therefore, it is same currently without finding
The similar large-scale antenna of the present invention rolls over the explanation or report for art of giving full play to one's skill, and is also not yet collected into domestic similar data.
The content of the invention
The present invention is in order to solve problem of the prior art, there is provided a kind of large-scale folding exhibition antenna experimental rig of microgravity, uses
In the deficiency for solving to lack corresponding large-scale folding exhibition antenna experimental rig in the prior art, solves Large-scale satellite antenna in ground weight
The problem of microgravity state of force environment Imitating environment track.The apparatus structure is reasonable in design, and operation quality is good, and operation can
Lean on, meet the folding exhibition test requirements document of large-scale antenna microgravity.
The present invention include crossbeam, round guide, line slideway, regulating bolt, adjusting sleeve, height adjusting block, linear slider, from
Dynamic synchronous pulley component, fixing bolt, passive and synchronous belt wheel, limited block, encoder component, driving pulley support, driving pulley,
Encoder swing arm, pressure sensor assembly, active steel wire around wheel, drive mechanism, antenna, passive activity pulley, by movable slider,
Sliding bearing, driving mechanism installing plate, drive mechanism pull bar, synchronous tape drive mechanism, counterweight pulley, balancing weight, timing belt peace
Mounting mechanism, timing belt, steel wire rope.
The round guide is fixedly mounted on the underface of crossbeam using regulating bolt and adjusting sleeve, and line slideway passes through tune
Section is bolted to below round guide, and the arc structure coordinated with round guide is designed with line slideway upper surface, with more preferable
Guarantee structure stability, the limited block other end is installed in line slideway one end counterweight pulley is installed, preferably to rise
To spacing and guiding steel wire rope effect；Two linear sliders are front and rear to be arranged on line slideway, and below linear slider
Height adjusting block is installed, driving mechanism installing plate is installed below height adjusting block, is pacified in driving mechanism installing plate bottom
Dress Plane Installation has encoder component, driving pulley support, pressure sensor assembly and drive mechanism.And in encoder component
Encoder swing arm is installed in installation axle, there are 2 millimeters of circular holes of diameter on the encoder swing arm, and the first steel wire penetrating should
Circular hole；Driving pulley support is mounted below driving pulley, and active steel wire is provided with drive mechanism front end around wheel, the active steel
The U-shaped steel wire rope groove of 1.5 mm wides corresponding to being provided with filament winding wheel, the main purpose of the mm wide of structure design 1.5 be in order to
Vibratory impulse of the steel wire rope in winding process is reduced, first steel wire rope one end is fixed on active steel wire on wheel and needed for winding
Length, afterwards the first steel wire rope, afterwards around driving pulley, again pass through encoder around pulley below pressure sensor assembly
Swing arm, it is connected in end in the mounting hole on antenna；4 sliding bearings are fixedly mounted on by movable slider, in order to more preferable
The frictional force that moves horizontally of reduction, 4 sliding bearing outer surfaces and round guide outer surface are tangent, and in order to avoid antenna
Gravity and balancing weight are provided with two groups of pulleys, Er Qie to being had an impact by the motion process of movable slider on by movable slider
It is lifted with immediately below it by the second steel wire rope and passive activity pulley is installed, the 3rd steel is installed below passive activity pulley
Cord, the 3rd steel wire rope other end are fixed together with antenna mounting locations, while second steel wire rope one end is connected to balancing weight
On, it is fixed on around being bypassed after counterweight pulley by movable slider and the passive activity pulley other end on limited block, with preferably real
Now to the gravitational equilibrium of antenna；Two groups of dynamic synchronous pulley components and two groups of timing belt installing mechanisms are fixed on horizontal stroke by fixing bolt
Beam upper surface, two groups of synchronization tape drive mechanisms are fixed together respectively at two groups and timing belt installing mechanism, two groups of drivings
Mechanism pull bar is bolted one section and is fixedly mounted on timing belt, and the other end links together with height adjusting block, and then
Timing belt is driven to work by synchronous tape drive mechanism.
As preferable, two assembly pulleys installed on movable slider, its mounting distance is slided equal to passive activity
U-type groove diameter of movement on wheel, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley is in parallel, preferably ensures
Mechanism kinematic stability.
The U-type groove that width is 1.5 mm wides is provided with wheel as preferable, described active steel wire, is preferably ensured
The active steel wire can continue to keep each circle steel wire to be superimposed during the first steel wire rope of the wheel in 1 millimeter of coiling diameter,
Without staggeredly, preferably to reduce the vibration of structure, improving the stability of antenna expansion.
As preferable, the balancing weight by the second steel wire rope around after two-stage pulley around passive activity pulley again
Secondary bypass is fixed on limited block by one pulley of neck on movable slider, and purpose in this way is preferably to balance
Gravity, motion process of the limited block on round guide is fixed on without influenceing pulley.
As preferable, connected between multigroup regulating bolt and adjusting sleeve using spiral, be exactly to be between the structure
Preferably ensure that round guide and line slideway can be guaranteed at horizontal level, the normal fortune entered without influenceing whole device
It is dynamic.
As preferable, the pressure sensor assembly needs to keep having certain precompression, in order to worked
The change of pressure value can more be accurately controlled the rotating of drive mechanism in journey, to realize that being wound in for the first steel wire rope is released
Put, the progress of exhibition experiment is rolled over more preferable auxiliary antenna.
Beneficial effect of the present invention is：
1st, realize and experiment is opened up to the folding of large-scale antenna, realize the purpose of large-scale antenna microgravity folding exhibition experiment.
2nd, invention achieves preferably meet large-scale antenna to carry out the required analog orbit ring of expansion experiment on ground
The requirement of border microgravity state, tested for the microgravity test of the important space equipment such as spacecraft, space manipulator and antenna
It is significant.
3rd, this is reasonable in design, and operation quality is good, and operation is reliable, and generalization degree is high, has fully met large-scale antenna
The requirement of microgravity folding exhibition experiment.
Brief description of the drawings
Fig. 1 is front view of the present invention；
Fig. 2 is the axonometric drawing of the present invention；
Fig. 3 is the active suspension centre structure principle chart of the present invention.
Each label in figure：1- crossbeams, 2- round guides, 3- line slideways, 4- regulating bolts, 5- adjusting sleeves, 6- are highly adjusted
Block, 7- linear sliders, the driven synchronous pulley components of 8-, 9- fixing bolts, the passive and synchronous belt wheels of 10-, 11- limited blocks, 12- codings
Device assembly, 13- driving pulleys support, 14- driving pulleys, 15- encoders swing arm, 16- pressure sensor assemblies, 17- are actively
Steel wire is around wheel, 18- drive mechanisms, 19- antennas, 20- passive activities pulley, 21- by movable slider, 22- sliding bearings, 23- actives
Mechanism's installing plate, 14- drive mechanisms pull bar, 25- synchronizations tape drive mechanism, 26- counterweights pulley, 27- balancing weights, 28- timing belts
Installing mechanism, 29- timing belts.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The invention provides a kind of microgravity large-scale folding exhibition antenna experimental rig, its structure as shown in Figure 1, Figure 2 and Figure 3,
Including crossbeam 1, round guide 2, line slideway 3, regulating bolt 4, adjusting sleeve 5, height adjusting block 6, linear slider 7, driven synchronization
Pulley assemblies 8, fixing bolt 9, passive and synchronous belt wheel 10, limited block 11, encoder component 12, driving pulley support 13, active
Pulley 14, encoder swing arm 15, pressure sensor assembly 16, active steel wire are around wheel 17, drive mechanism 18, antenna 19, passive
Movable pulley 20, by movable slider 21, sliding bearing 22, driving mechanism installing plate 23, drive mechanism pull bar 24, timing belt driving machine
Structure 25, counterweight pulley 26, balancing weight 27, timing belt installing mechanism 28, timing belt 29.
The round guide 2 is fixedly mounted on the underface of crossbeam 1, and line slideway 3 using regulating bolt 4 and adjusting sleeve 5
The lower section of round guide 2 is fixed on by regulating bolt 4, the other end of limited block 11 is installed in the one end of line slideway 3 counterweight is installed
Pulley 26, preferably to play a part of spacing and guiding steel wire rope；Two linear sliders 7 are front and rear to be arranged on line slideway 3,
And height adjusting block 6 is installed below linear slider 7, driving mechanism installing plate 23 is installed below height adjusting block 6,
Encoder component 12, driving pulley support 13, pressure sensor group are installed in the bottom mounting plane of driving mechanism installing plate 23
Part 16 and drive mechanism 18.And encoder swing arm 15 is installed in the installation axle of encoder component 12, the encoder is swung
There are 2 millimeters of circular holes of diameter on arm 15, and the first steel wire penetrating circular hole；Driving pulley support 13 is mounted below driving pulley
14, active steel wire is installed in the front end of drive mechanism 18 around wheel 17, the active steel wire is provided with corresponding 1.5 mm wides on wheel 17
U-shaped steel wire rope groove, the main purpose of the mm wide of structure design 1.5 is the vibration in order to reduce steel wire rope in winding process
Impact, length on wheel 17 and needed for winding that first steel wire rope one end is fixed on active steel wire, the first steel wire rope is around overvoltage afterwards
The lower section pulley of force sensor module 16, afterwards around driving pulley 14, again passes through encoder swing arm 15, is connected in end
In mounting hole on antenna 19；Sliding bearing 22 is fixedly mounted on by movable slider 21, and in order to avoid antenna gravity and
Balancing weight 27 is provided with two groups of pulleys to being had an impact by the motion process of movable slider 21 on by movable slider 21, and at it
Underface is lifted with by the second steel wire rope and is provided with passive activity pulley 20, and the 3rd is provided with below passive activity pulley 20
Steel wire rope, the 3rd steel wire rope other end are fixed together with the installation site of antenna 19, while second steel wire rope one end is connected to and matched somebody with somebody
On pouring weight 27, limited block 11 is fixed on by movable slider 21 and the other end of passive activity pulley 20 around being bypassed after counterweight pulley 26
On, preferably to realize the gravitational equilibrium to antenna 19；Two groups of dynamic synchronous pulley components 8 and two groups of timing belt installing mechanisms 28 are logical
Cross fixing bolt 9 and be fixed on the upper surface of crossbeam 1, two groups of synchronization tape drive mechanisms 25 are respectively at two groups and timing belt installing mechanism 28
It is fixed together, two groups of drive mechanism pull bars 24 are bolted one section and are fixedly mounted on timing belt 29, the other end
Linked together with height adjusting block 6, and then drive timing belt 29 to work by synchronous tape drive mechanism 25.
On this basis, the present invention has following several embodiments：
Embodiment 1
Described two assembly pulleys installed on movable slider 21, its mounting distance are equal to the U-type groove on passive activity pulley 20
Diameter of movement, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley 20 is in parallel, more preferable assurance mechanism motion
Stability.
Embodiment 2
As preferable, two assembly pulleys installed on movable slider 21, its mounting distance is equal to passive activity pulley
U-type groove diameter of movement on 20, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley 20 is in parallel, more preferably really
Protect mechanism kinematic stability.
The U-type groove that width is 1.5 mm wides is provided with wheel 17 as preferable, described active steel wire, more preferably really
Protecting the active steel wire can continue to keep each circle steel wire to fold during the first steel wire rope of the wheel 17 in 1 millimeter of coiling diameter
Add, without staggeredly, preferably to reduce the vibration of structure, improving the stability of antenna expansion.
Embodiment 3
As preferable, two assembly pulleys installed on movable slider 21, its mounting distance is equal to passive activity pulley
U-type groove diameter of movement on 20, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley 20 is in parallel, more preferably really
Protect mechanism kinematic stability.
The U-type groove that width is 1.5 mm wides is provided with wheel 17 as preferable, described active steel wire, more preferably really
Protecting the active steel wire can continue to keep each circle steel wire to fold during the first steel wire rope of the wheel 17 in 1 millimeter of coiling diameter
Add, without staggeredly, preferably to reduce the vibration of structure, improving the stability of antenna expansion.
The arc structure coordinated with round guide 2 is designed with as preferable, the described upper surface of line slideway 3.
Embodiment 4
As preferable, two assembly pulleys installed on movable slider 21, its mounting distance is equal to passive activity pulley
U-type groove diameter of movement on 20, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley 20 is in parallel, more preferably really
Protect mechanism kinematic stability.
The U-type groove that width is 1.5 mm wides is provided with wheel 17 as preferable, described active steel wire, more preferably really
Protecting the active steel wire can continue to keep each circle steel wire to fold during the first steel wire rope of the wheel 17 in 1 millimeter of coiling diameter
Add, without staggeredly, preferably to reduce the vibration of structure, improving the stability of antenna expansion.
The arc structure coordinated with round guide 2 is designed with as preferable, the described upper surface of line slideway 3.
As preferable, connected between multigroup regulating bolt 4 and adjusting sleeve 5 using spiral, be exactly between the structure
In order to preferably ensure that round guide 2 and line slideway 3 can be guaranteed at horizontal level, enter without influenceing the normal of whole device
Motion.
Embodiment 5
As preferable, two assembly pulleys installed on movable slider 21, its mounting distance is equal to passive activity pulley
U-type groove diameter of movement on 20, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley 20 is in parallel, more preferably really
Protect mechanism kinematic stability.
The U-type groove that width is 1.5 mm wides is provided with wheel 17 as preferable, described active steel wire, more preferably really
Protecting the active steel wire can continue to keep each circle steel wire to fold during the first steel wire rope of the wheel 17 in 1 millimeter of coiling diameter
Add, without staggeredly, preferably to reduce the vibration of structure, improving the stability of antenna expansion.
The arc structure coordinated with round guide 2 is designed with as preferable, the described upper surface of line slideway 3.
As preferable, connected between multigroup regulating bolt 4 and adjusting sleeve 5 using spiral, be exactly between the structure
In order to preferably ensure that round guide 2 and line slideway 3 can be guaranteed at horizontal level, enter without influenceing the normal of whole device
Motion.
As preferable, the pressure sensor assembly 16 needs to keep having certain precompression, in order to work
During the change of pressure value can more be accurately controlled the rotating of drive mechanism 18, to realize the winding of the first steel wire rope
In release, the progress tested is opened up with the more preferable folding of auxiliary antenna 19.
Embodiment 6
As preferable, two assembly pulleys installed on movable slider 21, its mounting distance is equal to passive activity pulley
U-type groove diameter of movement on 20, and then the 3rd steel wire rope for ensuring to bypass in passive activity pulley 20 is in parallel, more preferably really
Protect mechanism kinematic stability.
The U-type groove that width is 1.5 mm wides is provided with wheel 17 as preferable, described active steel wire, more preferably really
Protecting the active steel wire can continue to keep each circle steel wire to fold during the first steel wire rope of the wheel 17 in 1 millimeter of coiling diameter
Add, without staggeredly, preferably to reduce the vibration of structure, improving the stability of antenna expansion.
The arc structure coordinated with round guide 2 is designed with as preferable, the described upper surface of line slideway 3.
As preferable, connected between multigroup regulating bolt 4 and adjusting sleeve 5 using spiral, be exactly between the structure
In order to preferably ensure that round guide 2 and line slideway 3 can be guaranteed at horizontal level, enter without influenceing the normal of whole device
Motion.
As preferable, the pressure sensor assembly 16 needs to keep having certain precompression, in order to work
During the change of pressure value can more be accurately controlled the rotating of drive mechanism 18, to realize the winding of the first steel wire rope
In release, the progress tested is opened up with the more preferable folding of auxiliary antenna 19.
It is tangent as preferable, the described outer surface of sliding bearing 22 and the outer surface of round guide 2.
Concrete application approach of the present invention is a lot, and described above is only the preferred embodiment of the present invention, it is noted that for
For those skilled in the art, under the premise without departing from the principles of the invention, some improvement can also be made, this
A little improve also should be regarded as protection scope of the present invention.
Claims (7)
- A kind of 1. large-scale folding exhibition antenna experimental rig of microgravity, it is characterised in that：Including crossbeam（1）, round guide（2）, straight line leads Rail（3）, regulating bolt（4）, adjusting sleeve（5）, height adjusting block（6）, linear slider（7）, driven synchronous pulley component（8）, it is solid Determine bolt（9）, passive and synchronous belt wheel（10）, limited block（11）, encoder component（12）, driving pulley support（13）, it is actively sliding Wheel（14）, encoder swing arm（15）, pressure sensor assembly（16）, active steel wire is around wheel（17）, drive mechanism（18）, antenna （19）, passive activity pulley（20）, by movable slider（21）, sliding bearing（22）, driving mechanism installing plate（23）, drive mechanism draw Bar（24）, synchronous tape drive mechanism（25）, counterweight pulley（26）, balancing weight（27）, timing belt installing mechanism（28）, timing belt （29）, steel wire rope；The round guide（2）Utilize regulating bolt（4）And adjusting sleeve（5）It is fixedly mounted on crossbeam（1）Underface, Line slideway（3）Pass through regulating bolt（4）It is fixed on round guide（2）Lower section, in line slideway（3）One end is provided with limited block （11）, the other end is provided with counterweight pulley（26）；Two linear sliders（7）It is front and rear to be arranged on line slideway（3）On, and straight Line sliding block（7）Lower section is provided with height adjusting block（6）, in height adjusting block（6）Lower section is provided with driving mechanism installing plate（23）, In driving mechanism installing plate（23）Bottom mounting plane is provided with encoder component（12）, driving pulley support（13）, pressure pass Sensor component（16）And drive mechanism（18）；The encoder component（12）Encoder swing arm is installed in installation axle （15）, the encoder swing arm（15）On be provided with circular hole, the first steel wire penetrating circular hole；Driving pulley support（13）Pacify below Equipped with driving pulley（14）, in drive mechanism（18）Front end is provided with active steel wire around wheel（17）；First steel wire rope one end is fixed In active steel wire around wheel（17）On, the other end bypasses pressure sensor assembly（16）Lower section pulley, afterwards around driving pulley （14）, through encoder swing arm（15）, antenna is connected in end（19）On mounting hole in；Sliding bearing（22）Fixed peace Mounted in by movable slider（21）On, by movable slider（21）On two groups of pulleys are installed, pass through the second steel wire rope immediately below pulley and lift There is passive activity pulley（20）, in passive activity pulley（20）Lower section is provided with the 3rd steel wire rope, the 3rd steel wire rope other end with Antenna（19）Installation site is fixed together；Second steel wire rope one end is connected to balancing weight（27）On, around counterweight pulley（26） Bypass afterwards by movable slider（21）With passive activity pulley（20）The other end is fixed on limited block（11）On；Two groups of dynamic synchronous pulleys Component（8）With two groups of timing belt installing mechanisms（28）Pass through fixing bolt（9）It is fixed on crossbeam（1）Upper surface, two groups of timing belts Drive mechanism（25）Respectively at two groups and timing belt installing mechanism（28）It is fixed together, two groups of drive mechanism pull bars（24） It is bolted one section and is fixedly mounted on timing belt（29）On, the other end and height adjusting block（6）Link together, Jin Ertong Cross synchronous tape drive mechanism（25）Drive timing belt（29）Work.
- 2. the large-scale folding exhibition antenna experimental rig of microgravity according to claim 1, it is characterised in that：It is described by movable slider （21）Two assembly pulleys of upper installation, its mounting distance are equal to passive activity pulley（20）On U-type groove diameter of movement, it is ensured that Passive activity pulley（20）The 3rd steel wire rope bypassed is in parallel.
- 3. the large-scale folding exhibition antenna experimental rig of microgravity according to claim 1, it is characterised in that：Described active steel wire Around wheel（17）On be provided with width be 1.5 mm wides U-type groove.
- 4. the large-scale folding exhibition antenna experimental rig of microgravity according to claim 1, it is characterised in that：Described multigroup regulation Bolt（4）With adjusting sleeve（5）Between using spiral connect.
- 5. the large-scale folding exhibition antenna experimental rig of microgravity according to claim 1, it is characterised in that：Described pressure sensing Device assembly（16）Holding has certain precompression.
- 6. the large-scale folding exhibition antenna experimental rig of microgravity according to claim 1, it is characterised in that：Described line slideway （3）Upper surface is designed with and round guide（2）The arc structure of cooperation.
- 7. the large-scale folding exhibition antenna experimental rig of microgravity according to claim 1, it is characterised in that：Described sliding bearing （22）Outer surface and round guide（2）Outer surface is tangent.
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| CN201710991108.5A CN107741334B (en) | 2017-10-23 | 2017-10-23 | Microgravity large-scale folding and unfolding antenna test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991108.5A CN107741334B (en) | 2017-10-23 | 2017-10-23 | Microgravity large-scale folding and unfolding antenna test device |
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| CN107741334A true CN107741334A (en) | 2018-02-27 |
| CN107741334B CN107741334B (en) | 2020-01-21 |
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| CN108516113A (en) * | 2018-03-09 | 2018-09-11 | 中国科学院长春光学精密机械与物理研究所 | One kind being eccentrically rotated space loading ground debugging gravity unloading method and device |
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