CN110723314A - Space film structure unfolding mechanism - Google Patents
Space film structure unfolding mechanism Download PDFInfo
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- CN110723314A CN110723314A CN201910968433.9A CN201910968433A CN110723314A CN 110723314 A CN110723314 A CN 110723314A CN 201910968433 A CN201910968433 A CN 201910968433A CN 110723314 A CN110723314 A CN 110723314A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 210000003813 thumb Anatomy 0.000 claims abstract description 20
- 239000010408 film Substances 0.000 claims description 49
- 239000010409 thin film Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 2
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Soil Working Implements (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a space film structure unfolding mechanism, which comprises a film structure and an unfolding control mechanism: the thin-wall structure comprises a plurality of thin-wall supporting rods, a collection scroll and a plurality of film surfaces, wherein one short end of each thin-wall supporting rod is fixed on the collection scroll; a film surface is respectively arranged between two adjacent thin-wall support rods, and the thin-wall support rods and the film surface can be wound on the collection scroll; the unfolding control mechanism comprises a mounting seat, a motor, a transmission assembly and a plurality of driving thumb wheels, wherein the motor, the transmission assembly and the driving thumb wheels are mounted on the mounting seat; the motor is respectively in driving connection with the plurality of driving thumb wheels through the transmission assembly; the periphery of the driving dial wheel is provided with a plurality of dial teeth, a plurality of dial holes matched with the dial teeth are formed in the length direction of the thin-wall supporting rod at intervals, the dial teeth on the driving dial wheel are mutually meshed with the dial holes in the corresponding thin-wall supporting rod, and the dial teeth can dial the thin-wall supporting rod wound on the collection scroll to be unfolded.
Description
Technical Field
The invention relates to the technical field of aerospace unfolding mechanisms, in particular to a space film structure unfolding mechanism.
Background
The space film structure has the outstanding advantages of light weight, high collection efficiency, good specific stiffness and the like relative to a rigid deployable structure, is a research hotspot in the technical field of space deployment mechanisms, and has wide application prospects in the fields of battery arrays, antennas and the like.
The currently studied spatial membrane structures include radial support membrane structures and peripheral tensioned membrane structures. The radial supporting thin film structure adopts an elastic thin-wall rod as a main bearing structure, and the triangular film surface is fixed at two ends of the thin-wall supporting rod through three angular points; when the structure is folded, the thin-wall support rod is wound around the central cylinder for collection, and each membrane surface is respectively folded in a bidirectional Z shape and is separately collected; when the structure is unfolded, a motor is generally adopted to drive the central cylinder to rotate around the main structure, and the thin-wall support rod is restrained by the guide wheel to move along the radial direction of the fixed direction and drive the film surface to be unfolded. The thin-wall rod and the film surface are separately stored in the structure folding and unfolding mode, the efficiency is low, the state of the film surface is not easy to control in the unfolding process, and a complicated film surface unfolding control mechanism needs to be designed to avoid the film surface from being wound with other structures; the thin-wall support rod needs to provide power for pulling out the membrane surface in the unfolding process, so that the rod bears larger pressure load and is easy to bend and lose efficacy.
Disclosure of Invention
Aiming at the urgent requirements of the future aerospace field on a thin film structure with high collection efficiency and high reliability, the invention aims to provide a space thin film structure unfolding mechanism.
In order to solve the above problems, the present invention provides a spatial film structure deployment mechanism, comprising a film structure and a deployment control mechanism:
the thin film structure comprises a plurality of thin-wall supporting rods, a collection scroll and a plurality of film surfaces, wherein the short end of each thin-wall supporting rod is fixed on the collection scroll, and the thin-wall supporting rods are arranged in a radial array by taking the collection scroll as the center; the film surface is arranged between two adjacent thin-wall support rods respectively, and the thin-wall support rods and the film surface can be wound on the collection scroll;
the unfolding control mechanism comprises a mounting seat, and a motor, a transmission assembly and a plurality of driving thumb wheels which are arranged on the mounting seat, and the collection reel is rotationally arranged on the mounting seat; the motor is respectively in driving connection with the driving dial wheels through the transmission assembly; the peripheral surface of the driving dial wheel is provided with a plurality of dial teeth, a plurality of dial holes matched with the dial teeth are formed in the length direction of the thin-wall supporting rod at intervals, the dial teeth on the driving dial wheel are mutually meshed with the corresponding dial holes on the thin-wall supporting rod, the motor can drive the driving dial wheel to rotate through the transmission assembly, and the dial teeth on the driving dial wheel can dial the thin-wall supporting rod wound on the collection reel to be unfolded.
Preferably, the film surface is provided with a crease, and the film surface can be folded into a strip-shaped structure through the crease and can be synchronously wound on the collection scroll together with the connected thin-wall support rod.
Preferably, the transmission component is one-stage or multi-stage gear transmission, belt transmission or chain transmission.
Preferably, the mounting seat comprises a mounting shell and a rotating shaft, the rotating shaft is fixed on the mounting shell, and the collection scroll is movably sleeved on the rotating shaft.
Preferably, the motor and the transmission assembly are both arranged in the mounting shell, the driving dial wheel is rotatably arranged on the mounting shell, and an output shaft of the motor is coaxial with the rotating shaft;
the motor transmits power to each driving shifting wheel through the transmission assembly, and shifting teeth on the driving shifting wheels are meshed with shifting holes on the corresponding thin-wall supporting rods for transmission so that the thin-wall supporting rods move along the unfolding direction.
Preferably, the thin-wall support rod is a long thin-wall shell-shaped structure, the cross section of the thin-wall support rod can be flattened into a straight line and wound on the collection scroll, and the thin-wall support rod is provided with a flat edge for arranging the poking hole.
Preferably, the section of the thin-wall supporting rod is pod-shaped, Y-shaped or C-shaped:
if the section of the thin-wall support rod is in a bean pod shape, the thin-wall support rod is formed by butting two omega-shaped structures, and a plurality of shifting holes are arranged on a butting edge at intervals;
if the section of the thin-wall support rod is Y-shaped, the thin-wall support rod comprises a V-shaped structure and an I-shaped structure, and a plurality of poking holes are arranged on the I-shaped structure at intervals;
if the section of the thin-wall support rod is C-shaped, the plurality of shifting holes are arranged on the C-shaped middle plane of the thin-wall support rod at intervals.
Preferably, the thin-wall support rod is made of high-toughness metal or composite material.
Preferably, the mounting seat is fixedly provided with a plurality of guide grooves, and one long edge end of the thin-wall support rod is embedded in one guide groove; and strip-shaped guide holes are formed in the wall of the guide groove, and the shifting teeth of the driving shifting wheel penetrate through the guide holes and are inserted into the shifting holes of the corresponding thin-wall supporting rods.
Preferably, the upper end and the lower end of the collection reel are respectively and fixedly provided with a flange, and the collection reel and the two flanges are in an I shape.
Compared with the prior art, the invention has the following technical effects:
1. according to the space film structure unfolding mechanism, the thin-wall supporting rod is connected with the adjacent edge of the film surface and is synchronously wound, folded and unfolded, so that the space film structure unfolding mechanism has the advantages of good unfolding rigidity and high collection efficiency;
2. according to the space film structure unfolding mechanism, the motor is adopted to drive the thin-wall supporting rods to unfold at the same time, so that the synchronism is good;
3. according to the space film structure unfolding mechanism, in the unfolding process, the thin-wall supporting rod mainly bears tensile load, the defect that the thin-wall structure is prone to buckling failure when bearing pressure load is overcome, and the mechanism is high in reliability.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic view of a film structure according to a preferred embodiment of the present invention in a storage state;
FIG. 2 is a schematic diagram of a film structure according to a preferred embodiment of the present invention in an expanded state;
FIG. 3 is a schematic view of the thin-walled rod and membrane face geometry of a preferred embodiment of the present invention in a membrane structure during deployment to furling;
FIG. 4 is a schematic structural view of a thin-walled support rod according to a preferred embodiment of the present invention;
FIG. 5 is a cross-sectional form view of a thin-walled support rod provided in accordance with a preferred embodiment of the present invention;
FIG. 6 is a schematic view of a storage reel according to a preferred embodiment of the present invention;
FIG. 7 is a schematic structural view of a deployment control mechanism provided in a preferred embodiment of the present invention;
FIG. 8 is a schematic structural view of a mounting seat of a deployment control mechanism provided in a preferred embodiment of the present invention;
FIG. 9 is a schematic structural view of a drive assembly of the deployment control mechanism provided in accordance with a preferred embodiment of the present invention;
fig. 10 is a schematic structural diagram of the interaction between the driving thumb wheel and the thin-wall support rod according to the preferred embodiment of the invention.
Detailed Description
The following will describe in detail a spatial thin film structure deployment mechanism provided by the present invention with reference to fig. 1 to 10, which is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and decorate the spatial thin film structure deployment mechanism without changing the spirit and content of the present invention.
Referring to fig. 1 to 10, a spatial film structure deployment mechanism includes a film structure 1 and a deployment control mechanism 2:
the thin-wall structure 1 comprises a plurality of thin-wall support rods 11, a collection scroll 13 and a plurality of film surfaces 12, wherein one short end of each thin-wall support rod 11 is fixed on the collection scroll 13 (the short end is parallel to the axis of the collection scroll 13), and the thin-wall support rods 11 are arranged in a radial array by taking the collection scroll 13 as the center; the film surfaces 12 are respectively arranged on the adjacent thin-wall support rods 11, and the thin-wall support rods 11 and the film surfaces 12 can be wound on the collection scroll 13;
the unfolding control mechanism 2 comprises a mounting seat 21, a motor 22, a transmission assembly 23 and a plurality of driving thumb wheels 24, wherein the motor 22, the transmission assembly 23 and the driving thumb wheels 24 are mounted on the mounting seat 21, and the collection reel 13 is rotatably arranged on the mounting seat 21; the motor 22 is in driving connection with the driving thumb wheels 24 through the transmission assembly 23; a plurality of shifting teeth 241 are radially arranged on the circumferential surface of the driving shifting wheel 24, a plurality of shifting holes 111 matched with the shifting teeth 241 are formed in the length direction of the thin-wall support rod 11 at intervals, the shifting teeth 241 on the driving shifting wheel 24 are meshed with the corresponding shifting holes 111 on the thin-wall support rod 11, the motor 22 can drive the driving shifting wheel 24 to rotate through the transmission assembly 23, and the shifting teeth 241 on the driving shifting wheel 24 can shift the thin-wall support rod 11 wound on the collection reel 13 to be unfolded. The corresponding engaging transmission of the poking teeth 241 on the driving poking wheel 24 and the poking holes 111 on the thin-wall support rod 11 not only can unwind the thin-wall support rod 11 wound on the collection scroll 13, but also can wind the unwound thin-wall support rod 11 on the collection scroll 13.
In this embodiment, the collection scroll 13 is located at the geometric center of the thin film structure 1, the thin-wall support rods 11 divide the thin film structure 1 into a plurality of quadrants, each film surface 12 corresponds to one quadrant and is fixed on two adjacent thin-wall support rods 11, and the thin-wall support rods 11 and the film surfaces 12 can be wound around the collection scroll 13 and collected into a cylindrical shape.
The number of the thin-wall support rods 11 and the membrane surfaces 12 is not limited, the number of the membrane surfaces 12 is equal to the number of the thin-wall support rods 11, namely, one membrane surface 12 is arranged between every two adjacent thin-wall support rods 11. In this embodiment, the membrane surface 12 and the thin-wall support bar 11 may be connected continuously or discretely through adjacent edges, or connected to the thin-wall support bar 11 only through three corner points of the membrane surface 12.
The film surface 12 is provided with a crease, and the film surface 12 can be folded into a strip-shaped structure through the crease and can be synchronously wound on the collection scroll 13 together with the connected thin-wall support rod 11.
In the embodiment, four thin-wall support rods 11 and four membrane surfaces 12 are taken as an example, the outer contour of the membrane surface 12 is an equilateral right-angled triangle, and the membrane surface 12 can be folded into a strip shape and synchronously wound and stored with the connected thin-wall support rods 11 through two Z-shaped folds which are respectively parallel to the right-angled sides, and the physical connection relationship between the membrane surface 12 and the thin-wall support rods 11 is not damaged.
In this embodiment, referring to fig. 6, the upper end and the lower end of the storage reel 13 are respectively fixed with a flange, that is, the upper end of the storage reel 13 is vertically fixed with an upper flange 15, the lower end is vertically fixed with a lower flange 14, and the storage reel 13, the upper flange 15 and the lower flange 14 form an i-shaped structure, which ensures that the thin-wall support rod 1111 and the membrane surface 1212 do not sideslip after being wound and stored, and do not swing laterally before being unwound.
Furthermore, the collection scroll 13 is cylindrical, the collection scroll 13 is coaxial with the upper flange 15 and the lower flange 14 respectively, and the axial directions of the collection scroll 13, the upper flange and the lower flange are hollow structures.
Referring to fig. 7 and 8, the mounting base 21 includes a mounting housing 212 and a rotating shaft 211, the rotating shaft 211 is fixed on the mounting housing 212, and the storage reel 13 is movably sleeved on the rotating shaft 211.
The motor 22 and the transmission assembly 23 are both mounted in the mounting shell 212, the driving dial wheel 24 is rotatably arranged on the mounting shell 212, and an output shaft of the motor 22 is coaxial with the rotating shaft 211;
the motor 22 transmits power to each driving thumb wheel 24 through the transmission assembly 23, and the thumb teeth 241 on the driving thumb wheels 24 are engaged with the corresponding thumb holes 111 on the thin-wall support rod 11 for transmission, so that the thin-wall support rod 11 moves along the unfolding direction.
The present invention is not limited to the specific structure of the transmission assembly 23, and may be one-stage or multi-stage gear transmission, belt transmission or chain transmission, and the present embodiment takes two-stage gear transmission as an example.
In this embodiment, referring to fig. 9, the gear transmission includes a large gear 231, a plurality of intermediate gears 232 and a plurality of driving gears 233, the large gear 231 is coaxially fixed on the output shaft of the motor 22, and the plurality of intermediate gears 232 are respectively rotatably disposed in the mounting housing 212 and externally engaged with the large gear 231; the driving gears 233 are respectively and rotatably arranged in the mounting shell 212 and are respectively externally meshed with an intermediate gear 232; the driving gear 233 is coaxially and fixedly connected with the driving dial 24 through an output shaft 234, and the driving dial 24 is convexly arranged on the mounting shell 212.
Referring to fig. 10, the mounting housing 212 is further fixedly provided with a plurality of guide grooves 25, and a long side end of the thin-wall support rod 11 is embedded in one of the guide grooves 25; a strip-shaped guide hole 251 is formed in a wall of the guide groove 25, and the shifting tooth 241 of the driving shifting wheel 24 penetrates through the guide hole 251 and is inserted into a corresponding shifting hole 111 of one of the thin-wall support rods 11. The guide groove 25 restrains the thin-wall support rod 11 from moving along the unfolding direction, and ensures that the shifting teeth 241 are well matched with the shifting holes 111 on the thin-wall support rod 11 without tooth dropping.
In this embodiment, a plurality of covers 26 are disposed on the mounting housing 212, and each cover 26 covers one of the driving wheels 24. A housing 26 and the wall of a guide groove 25 form a space therebetween, and the driving wheel 24 is located in the space.
In the present invention, the driving thumb wheel 24 and the thin-wall support rod 11 are in meshing transmission similar to a rack and pinion, and the rotary motion of the driving thumb wheel 24 is converted into the linear motion of the thin-wall support rod 11. The rotary motion of the poking teeth 241 is converted into the linear motion of the thin-wall support rod 11 along the unfolding direction, and the unfolded part of the thin-wall support rod 11 on the collection scroll 13 bears the tensile force, so that the buckling failure of the thin-wall support rod 11 due to the bearing pressure is avoided.
The shapes of the dial teeth 241 and the dial holes 111 are not particularly limited in the present invention, as long as the engagement transmission is possible. In this embodiment, the tooth profile of the shifting tooth 241 is conical, and the shifting hole 111 of the thin-wall support rod 11 is a kidney-shaped hole.
In this embodiment, the thin-wall support rod 11 is a long casing, which can be flattened into a straight shape and wound on the storage reel 13, and the thin-wall support rod 11 has a flat edge for opening the toggle hole 111. The thin-wall support rod 11 is made of high-toughness metal (the metal has better elasticity) or composite material.
The cross-sectional shape of the thin-wall support rod 11 is not particularly limited, and referring to fig. 5, the cross-section of the thin-wall support rod 11 may be pod-shaped, Y-shaped or C-shaped:
if the section of the thin-wall support rod 11 is pod-shaped, the thin-wall support rod 11 is formed by butting two omega-shaped structures, and a plurality of shifting holes 111 are arranged on a butting edge at intervals;
if the section of the thin-wall support rod 11 is Y-shaped, the thin-wall support rod 11 includes a V-shaped structure and an i-shaped structure, and a plurality of the toggle holes 111 are spaced on the i-shaped structure, please refer to fig. 4;
if the section of the thin-wall support rod 11 is C-shaped, the plurality of toggle holes 111 are formed on the C-shaped middle plane of the thin-wall support rod 11 at intervals.
The working principle of the invention is as follows:
1) the film structure 1 is folded into a cylinder shape by the folding design and the winding folding mode of the film surface 12 as shown in figure 3; the film structure 1 is nested on the rotating shaft 211 of the mounting base 21 through the collection scroll 13, the collection scroll 13 can only rotate around the rotating shaft 211, then the long side end of each thin-wall support rod 11 is respectively embedded into the corresponding guide groove 25, and the shifting teeth 241 are meshed with the shifting holes 111, so that the structure folding state shown in fig. 1 is obtained;
2) in the unfolding process, the motor 22 transmits the power motion rotary motion to each driving thumb wheel 24 through the transmission assembly 23, the thumb teeth 241 on the driving thumb wheels 24 are matched with the thumb holes 111 of the thin-wall support rod 11 to convert the rotary motion of the driving thumb wheels 24 into the linear motion of the thin-wall support rod 11 until the thin-wall structure 1 is completely unfolded, and the unfolding process of the thin-wall structure 1 is the reverse process of the state shown in fig. 3.
Claims (10)
1. A spatial film structure deployment mechanism comprising a film structure and a deployment control mechanism:
the thin film structure comprises a plurality of thin-wall supporting rods, a collection scroll and a plurality of film surfaces, wherein the short end of each thin-wall supporting rod is fixed on the collection scroll, and the thin-wall supporting rods are arranged in a radial array by taking the collection scroll as the center; the film surface is arranged between two adjacent thin-wall support rods respectively, and the thin-wall support rods and the film surface can be wound on the collection scroll;
the unfolding control mechanism comprises a mounting seat, and a motor, a transmission assembly and a plurality of driving thumb wheels which are arranged on the mounting seat, and the collection reel is rotationally arranged on the mounting seat; the motor is respectively in driving connection with the driving dial wheels through the transmission assembly; the peripheral surface of the driving dial wheel is provided with a plurality of dial teeth, a plurality of dial holes matched with the dial teeth are formed in the length direction of the thin-wall supporting rod at intervals, the dial teeth on the driving dial wheel are mutually meshed with the corresponding dial holes on the thin-wall supporting rod, the motor can drive the driving dial wheel to rotate through the transmission assembly, and the dial teeth on the driving dial wheel can dial the thin-wall supporting rod wound on the collection reel to be unfolded.
2. The spatial film structure deployment mechanism of claim 1, wherein said film surface is provided with a fold, said film surface being collapsible into a strip-like structure by said fold and being synchronously windable about said storage spool with said thin-walled support rod attached thereto.
3. The spatial film structure deployment mechanism of claim 1, wherein said drive assembly is one or more of a gear drive, a belt drive, or a chain drive.
4. The spatial film structure deployment mechanism of claim 1, wherein said mounting base comprises a mounting housing and a shaft, said shaft being fixed to said mounting housing, said storage reel being movably mounted on said shaft.
5. The spatial thin-film structure deployment mechanism of claim 4, wherein said motor and transmission assembly are mounted in said mounting housing, said drive wheel is rotatably disposed on said mounting housing, and an output shaft of said motor is coaxial with said rotating shaft;
the motor transmits power to each driving shifting wheel through the transmission assembly, and shifting teeth on the driving shifting wheels are meshed with shifting holes on the corresponding thin-wall supporting rods for transmission so that the thin-wall supporting rods move along the unfolding direction.
6. The space film structure deployment mechanism of claim 1, wherein said thin-walled support rod is an elongated thin-walled shell-like structure having a cross-section that is flattened into a line and wound around said storage spool, and wherein said thin-walled support rod has a flat edge for opening said toggle hole.
7. The spatial film structure deployment mechanism of claim 6, wherein said thin-walled support rods have a pod, Y-shaped or C-shaped cross-section:
if the section of the thin-wall support rod is in a bean pod shape, the thin-wall support rod is formed by butting two omega-shaped structures, and a plurality of shifting holes are arranged on a butting edge at intervals;
if the section of the thin-wall support rod is Y-shaped, the thin-wall support rod comprises a V-shaped structure and an I-shaped structure, and a plurality of poking holes are arranged on the I-shaped structure at intervals;
if the section of the thin-wall support rod is C-shaped, the plurality of shifting holes are arranged on the C-shaped middle plane of the thin-wall support rod at intervals.
8. The spatial film structure deployment mechanism of claim 1, wherein said thin-walled support rods are made of a high-toughness metal or composite material.
9. The spatial thin-film structure deployment mechanism of claim 1, wherein a plurality of guide grooves are fixedly arranged on the mounting seat, and one long side end of the thin-wall support rod is embedded in one guide groove; and strip-shaped guide holes are formed in the wall of the guide groove, and the shifting teeth of the driving shifting wheel penetrate through the guide holes and are inserted into the shifting holes of the corresponding thin-wall supporting rods.
10. The spatial film structure deployment mechanism of claim 1, wherein a flange is fixedly mounted on each of the upper and lower ends of said storage reel, and said storage reel and said flanges are in an i-shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968433.9A CN110723314B (en) | 2019-10-12 | 2019-10-12 | Spatial film structure unfolding mechanism |
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| CN201910968433.9A CN110723314B (en) | 2019-10-12 | 2019-10-12 | Spatial film structure unfolding mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682857A (en) * | 2021-07-21 | 2021-11-23 | 东南大学 | Large-scale paraboloid film structure winding and folding tool system and folding method |
| CN114476149A (en) * | 2022-03-03 | 2022-05-13 | 中国科学院空间应用工程与技术中心 | Spatial expandable exposure experiment platform based on spherical 5R mechanism |
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| CN103192999A (en) * | 2013-03-08 | 2013-07-10 | 北京航空航天大学 | Ground zero-gravity test device for small-space one-dimension extension mechanism |
| CN104058105A (en) * | 2014-06-24 | 2014-09-24 | 中国空间技术研究院 | Deep space solar sail spacecraft driven by utilizing sunlight pressure |
| CN105799956A (en) * | 2016-03-18 | 2016-07-27 | 南京理工大学 | Cubesat brake sail de-orbit device |
| CN105836162A (en) * | 2016-05-25 | 2016-08-10 | 南京理工大学 | Braking-sail deorbiting device for micro/nano satellite |
| CN107453017A (en) * | 2017-07-24 | 2017-12-08 | 西安电子科技大学 | A kind of space plane film antenna deployable mechanism |
| CN108910089A (en) * | 2018-07-18 | 2018-11-30 | 安徽大学 | Single-motor-driven four-roller humanoid-shaped rod unfolding mechanism |
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| CN113682857A (en) * | 2021-07-21 | 2021-11-23 | 东南大学 | Large-scale paraboloid film structure winding and folding tool system and folding method |
| CN114476149A (en) * | 2022-03-03 | 2022-05-13 | 中国科学院空间应用工程与技术中心 | Spatial expandable exposure experiment platform based on spherical 5R mechanism |
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