CN210116655U - Novel plane deployable structure - Google Patents
Novel plane deployable structure Download PDFInfo
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- CN210116655U CN210116655U CN201920282112.9U CN201920282112U CN210116655U CN 210116655 U CN210116655 U CN 210116655U CN 201920282112 U CN201920282112 U CN 201920282112U CN 210116655 U CN210116655 U CN 210116655U
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Abstract
The utility model relates to a novel plane deployable structure. The utility model discloses a square unit that adjacent row square unit fissure of displacement distributes. The square unit comprises n layers of single-layer structures and n-1 vertical supporting structures. The vertical supporting structure connects two adjacent layers of single-layer structures together to form a square unit. The single-layer structure can be folded by matching a specific A-type locking mechanism, a specific B-type locking mechanism, a specific C-type locking mechanism, a specific X-direction short rod and a specific Y-direction long rod. The utility model discloses can be used as the large-scale plane phased array antenna and other large-scale, the super large-scale spatial structure of super large scale space solar power station microwave transmitting antenna, satellite in the space. The novel plane furling and unfolding configuration and the locking mode have the advantages of high unfolding precision, high rigidity, large folding-unfolding ratio and the like, and are suitable for space large-scale and super-large-scale antennas and battery array structures.
Description
Technical Field
The utility model belongs to the technical field of the space deployable structure, a novel plane deployable structure is related to.
Background
The space solar power station is formed by arranging a large-area solar cell array and a power supply conversion device in space and transmitting energy back to the ground in the form of microwaves through a microwave transmitting antenna in the space. Therefore, the adverse effect of the ground climate condition on solar energy collection can be avoided, and the purpose of effectively collecting solar energy for a long time is achieved. The space solar power station is expected to solve the problem of environmental pollution caused by energy crisis and thermal power generation, and therefore becomes a hot spot of research of various countries. The microwave transmitting antenna adopts a planar microstrip phased array antenna, and the diameter of the space solar power station antenna with megawatt-level generated energy is at least 200 meters. The size of the ultra-large caliber antenna is improved by more than ten times compared with the existing satellite antenna, and a kilometer-grade antenna is even needed along with the technical development of a space power station in the future, so that the space microwave transmitting antenna becomes a key technology for building the space solar power station. The space solar power station antenna is limited by the size and carrying capacity of a carrier rocket, the space solar power station antenna is required to be divided into a plurality of sub-arrays during construction, the mass and the size of each sub-array are controlled within the carrying capacity range of single launch of the carrier rocket, and after the sub-arrays are launched into orbit, the sub-arrays are assembled in space, so that structural integration is realized. In the structural scheme of space solar energy proposed in foreign countries at present, the geometric configuration of the subarrays of the large-scale structure mostly adopts hexagonal units, triangular units, strip-shaped units and square units, each subarray is a fixed structure which can not be folded, and the subarrays are folded during emission, as shown in attached fig. 1(a) and (b). Taking the concept of distributed tethered solar power station (Tether SPS) proposed in Japan as an example, the cell array and the microwave transmitting antenna of the distributed tethered solar power station adopt a double-layer flat plate structure with the size of 2.5km multiplied by 2.5 km. The basic constituent unit of the structure is a unit board (100m × 95m), a daughter board is formed by 25 unit boards, and the whole system is formed by 25 daughter boards, as shown in fig. 1 (c).
For the antenna with the ultra-large size, if the subarray can not be folded, the launching times and the assembly difficulty of the airship are increased. Therefore, the submatrix needs to adopt a foldable structure, so that the airship can carry more submatrixes at one time and effectively reduce the emission times. Meanwhile, by adopting the foldable subarray scheme, a plurality of subarrays can be pre-assembled and folded on the ground, so that the area after unfolding is increased, the on-rail assembling difficulty is reduced, and the precision and the rigidity of the unfolding and assembling structure can be better ensured. In addition, the development of a new generation of large satellite-borne phased-array antenna and a solar cell array also requires that the structure can be folded during transmission and can realize a large-caliber planar structure after being unfolded on a rail. The patent is therefore proposed to provide a new planar deployable structure with a high ratio of collapsed/deployed volume.
Disclosure of Invention
The utility model aims at providing a novel plane deployable structure.
The utility model discloses a square unit that adjacent row square unit fissure of displacement distributes. The square unit comprises n layers of single-layer structures and n-1 vertical supporting structures. The vertical supporting structure connects two adjacent layers of single-layer structures together to form a square unit.
The single-layer structure comprises a plurality of A-type locking mechanisms, a plurality of B-type locking mechanisms, a plurality of C-type locking mechanisms, a plurality of pairs of X-direction short rods and a plurality of Y-direction long rods. The X-direction short rods are connected in pairs and connected into a shape like a Chinese character 'pin' through the Y-direction long rods; two X are connected to the short rods through a B-type locking mechanism, one X is connected to one Y through a C-type locking mechanism, and the two X are connected to one Y through an A-type locking mechanism.
The A-type locking mechanism comprises a node shell, a rotary joint, a rack and a torsion spring. The pair of rotary joints are respectively arranged on the node shell through pin shafts, the pin shafts are arranged in the rotary joints and are embedded with torsion springs, and the rotary joints can rotate around the pin shafts; the pair of rotary joints are respectively meshed with the two sides of the rack, and the rack is lifted through the matching of the rotary joints and the rack; and rod piece joints are arranged on the pair of rotary joints and the rack and are used for connecting rod pieces. The rod piece joints on the pair of rotary joints are respectively connected with two X-direction short rods, and the rod piece joints on the rack are connected with a Y-direction long rod.
Compared with the A-type locking mechanism, the B-type locking mechanism has less rod piece joints on the rack. The rod piece joints on the pair of rotary joints are respectively connected with two X-direction short rods.
Compared with the A-type locking mechanism, the C-type locking mechanism has one less rotary joint. The rod piece joint on the rotary joint is connected with an X-direction short rod, and the rod piece joint on the rack is connected with a Y-direction long rod.
The vertical supporting structure comprises a plurality of pairs of equal-length rods, and each pair of equal-length rods is connected through a B-type locking mechanism; two ends of the multiple pairs of long rods are respectively connected with the side faces of the A-type/B-type/C-type locking mechanisms corresponding to the adjacent two layers of single-layer structures.
The two ends of the multiple pairs of long rods are connected with a pair of single-layer structures by additionally arranging rod piece joints on the side surfaces of a pair of single-layer structure A-type/B-type/C-type locking mechanisms;
the two ends of the multiple pairs of equal long rods are connected with a pair of single-layer structures through a pair of single-layer structure A-type/B-type/C-type locking mechanisms, a rotating joint and a rack are additionally arranged on the side face of each single-layer structure A-type/B-type/C-type locking mechanism, and a rod piece joint is arranged on each rotating joint.
The utility model discloses can be used as the large-scale plane phased array antenna and other large-scale, the super large-scale spatial structure of super large scale space solar power station microwave transmitting antenna, satellite in the space. The novel plane furling and unfolding configuration and the locking mode have the advantages of high unfolding precision, high rigidity, large folding-unfolding ratio and the like, and are suitable for space large-scale and super-large-scale antennas and battery array structures.
Drawings
FIG. 1(a) is a schematic diagram of a conventional hexagonal cell splicing;
FIG. 1(b) is a schematic diagram of a conventional folding method of a subarray;
FIG. 1(c) is a conceptual diagram of a space solar power station structure;
fig. 2 is a schematic plan layout view of the present invention in an unfolded state;
FIG. 3 is a schematic view of the overall structure of the square unit of FIG. 2;
FIG. 4 is a schematic structural view of the single layer structure of FIG. 3;
FIG. 5 is a schematic structural view of a single-layer structure in a certain state during folding;
FIG. 6 is a schematic drawing of a single-layer structure;
FIG. 7 is a structural diagram of the A-type locking mechanism of FIG. 5 in a closed state;
FIG. 8 is a structural view of the B-type locking mechanism of FIG. 5 in a closed state;
FIG. 9 is a structural view of the C-shaped locking mechanism of FIG. 5 in a closed state;
FIG. 10 is a schematic view showing a vertical support structure connection structure according to embodiment 1;
FIG. 11 is a schematic view showing a vertical support structure connecting structure according to embodiment 2;
FIG. 12 is a schematic view showing the operation of the square unit in example 2;
FIG. 13 is a schematic view of the operation of the A-type locking mechanism;
FIG. 14 is a schematic view of the operation of the type B locking mechanism;
fig. 15 is a schematic view showing the operation of the C-lock mechanism.
Detailed Description
As shown in fig. 2, a novel planar expandable structure, after expansion, the planar layout is distributed by staggered joints of adjacent rows of square units, and the basic module is a square unit with a structure of a Chinese character pin.
The detailed description is given by taking a vertically foldable 'pin' shaped module as an example. As shown in fig. 3, the square unit comprises a two-layer single-layer structure 1, a vertical support structure 2. The single-layer structure 1 is in a shape like a Chinese character 'pin', and the vertical supporting structure 2 connects the two layers of the single-layer structures 1 together to form a square unit.
As shown in fig. 4 to 6, the single-layer structure 1 includes four a-type locking mechanisms 3, six B-type locking mechanisms 4, three C-type locking mechanisms 5, five pairs of X-direction short rods 6, and five Y-direction long rods 7. The X-direction short rods are connected in pairs and connected into a shape like a Chinese character 'pin' through the Y-direction long rods; two X are connected to the short rods through a B-type locking mechanism, one X is connected to one Y through a C-type locking mechanism 5, and two X are connected to one Y through an A-type locking mechanism.
As shown in fig. 7, the a-type locking mechanism 3 includes a node case 8, a rotary joint 9, a rack 10, a torsion spring 11, and a pin 12. The node shell 8 is a framework of the whole unfolding and locking mechanism; the pair of rotary joints 9 are symmetrically arranged on the node shell 8 through pin shafts 12 respectively, and the pin shafts 12 are arranged in the rotary joints 9 and are embedded with torsion springs in a distributed manner; the rotating joints can rotate a pair of rotating joints 9 around a pin shaft to be respectively meshed with two sides of the rack 10 under the driving of the torsion spring 11, and the rack 10 is lifted through the matching of the rotating joints 9 and the rack 10; and rod joints 13 are arranged on the pair of rotary joints 9 and the rack 10 for connecting rods. The rod piece joints on the pair of rotary joints are respectively connected with two X-direction short rods, and the rod piece joints on the rack are connected with a Y-direction long rod. The expansion and the furling of the joint of the three rods are realized.
As shown in fig. 8, the B-lock mechanism 4 has fewer bar joints 13 on the rack 10 than the a-lock mechanism 3. The rod piece joints on the pair of rotary joints are respectively connected with the two X-direction short rods, so that the connection part of the two X-direction short rods can be unfolded and folded.
As shown in fig. 9, the C-lock mechanism 5 has one less rotary joint 9 than the a-lock mechanism 3. The rod piece joint on the rotary joint is connected with an X-direction short rod, and the rod piece joint on the rack is connected with a Y-direction long rod, so that the expansion and the folding of the joint of the heterodromous rod pieces are realized.
Example 1: as shown in fig. 10, the vertical support structure 2 comprises a plurality of pairs of equal length bars, each pair of equal length bars being connected by a B-type locking mechanism; the two ends of the multiple pairs of the long rods are connected with a pair of single-layer structures through rod piece connectors 13 additionally arranged on the side surfaces of a pair of single-layer structure A-type/B-type/C-type locking mechanisms; and at the moment, the vertical direction can not be folded.
Example 2: as shown in fig. 11, the vertical support structure 2 comprises a plurality of pairs of equal length rods, each pair of equal length rods being connected by a B-shaped locking mechanism; two ends of the multiple pairs of the long rods are connected with a pair of single-layer structures through additionally arranging a rotating joint 9 and a rack 10 on the side surface of a pair of single-layer structure A-type/B-type/C-type locking mechanisms, a rod joint 13 is arranged on the rotating joint 9, and the unfolding and locking principle is the same as that of the single-layer structure 1; the vertical direction can be folded at the moment.
The working process is as follows:
as shown in fig. 12 to 15, in the folded state, each rod of the single-layer structure is folded along the Y direction, a group of opposite sides (each side is composed of two X-direction short rods and a locking mechanism) of each square unit is folded inwards between the Y-direction long rods, and the locking mechanism is close to the middle of the Y-direction long rod.
After the restraint is removed, the rotating joints of the locking mechanisms start to rotate under the driving of the torsion springs, the X-direction short rods rotate along with the rotating joints, the included angle between the X-direction short rods and the Y-direction short rods is increased from 0 degree, and the distance between the Y-direction long rods and the X-direction long rods is increased; the locking mechanism which is connected with two X-direction short rods in a V shape moves towards the Y-direction long rod end along with the unfolding process. When the V-shaped included angle is increased to 180 degrees (namely the included angle between the X-direction short rod 6 and the Y-direction reaches 90 degrees), the two X-direction short rods are collinear, and along the X-direction, the X-direction short rod and the Y-direction long rod form a square sub-array, the structure reaches a completely unfolded state, and the locking mechanism completes locking.
When the vertical structure can be folded, the vertical supporting structure 2 adopts the same folding and unfolding principle as the single-layer structure 1.
Taking a vertically foldable inverted-Y-shaped module designed according to the size of a scaling ratio as an example, the maximum length of the module in the X direction is 911mm, the maximum length of the module in the Y direction is 878mm, and the maximum vertical height is 377mm in an unfolded state; in a furled state, the maximum length in the X direction is 103mm, the maximum length in the Y direction is 697mm, and the maximum vertical height is 93 mm; the module has an X-direction contraction and expansion ratio of 8.84, a Y-direction contraction and expansion ratio of 1.26, a vertical contraction and expansion ratio of 4.04, an XY plane area contraction and expansion ratio of 11 and a volume contraction and expansion ratio of 44. If the size of the rod is further optimized and the module is arranged in a plurality of modules, a larger contraction-expansion ratio can be obtained, and the expansion-contraction ratio is not further described.
The above-described embodiments are intended to be illustrative of this patent and are not intended to be limiting, since any modifications and variations of this patent which fall within the spirit of the patent and the scope of the appended claims will be embraced thereby.
Claims (3)
1. The novel plane expandable structure is a square unit with adjacent rows of square units distributed in a staggered manner; the method is characterized in that: the square unit comprises n layers of single-layer structures and n-1 vertical supporting structures; the vertical supporting structure connects two adjacent layers of single-layer structures together to form a square unit;
the single-layer structure comprises a plurality of A-shaped locking mechanisms, a plurality of B-shaped locking mechanisms, a plurality of C-shaped locking mechanisms, a plurality of pairs of X-direction short rods and a plurality of Y-direction long rods; the X-direction short rods are connected in pairs and connected into a shape like a Chinese character 'pin' through the Y-direction long rods; the two X-direction short rods are connected through a B-type locking mechanism, one X-direction short rod is connected with one Y-direction long rod through a C-type locking mechanism, and the two X-direction short rods are connected with one Y-direction long rod through an A-type locking mechanism;
the A-type locking mechanism comprises a node shell, a rotating joint, a rack and a torsion spring; the pair of rotary joints are respectively arranged on the node shell through pin shafts, the pin shafts are arranged in the rotary joints and are embedded with torsion springs, and the rotary joints can rotate around the pin shafts; the pair of rotary joints are respectively meshed with the two sides of the rack, and the rack is lifted through the matching of the rotary joints and the rack; rod piece joints are arranged on the pair of rotary joints and the rack and are used for connecting rod pieces; the rod piece joints on the pair of rotary joints are respectively connected with two X-direction short rods, and the rod piece joints on the rack are connected with a Y-direction long rod;
compared with the A-type locking mechanism, the B-type locking mechanism has less rod piece joints on the rack; the rod piece joints on the pair of rotary joints are respectively connected with two X-direction short rods;
compared with the A-type locking mechanism, the C-type locking mechanism has one less rotary joint; the rod piece joint on the rotary joint is connected with an X-direction short rod, and the rod piece joint on the rack is connected with a Y-direction long rod;
the vertical supporting structure comprises a plurality of pairs of equal-length rods, and each pair of equal-length rods is connected through a B-type locking mechanism; two ends of the multiple pairs of long rods are respectively connected with the side faces of the A-type/B-type/C-type locking mechanisms corresponding to the adjacent two layers of single-layer structures.
2. The novel planar deployable structure of claim 1, wherein: the two ends of the multiple pairs of the long rods are connected with a pair of single-layer structures through rod piece connectors additionally arranged on the side surfaces of a pair of single-layer structure A-type/B-type/C-type locking mechanisms.
3. The novel planar deployable structure of claim 1, wherein: the two ends of the multiple pairs of equal long rods are connected with a pair of single-layer structures through a pair of single-layer structure A-type/B-type/C-type locking mechanisms, a rotating joint and a rack are additionally arranged on the side face of each single-layer structure A-type/B-type/C-type locking mechanism, and a rod piece joint is arranged on each rotating joint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282112.9U CN210116655U (en) | 2019-03-06 | 2019-03-06 | Novel plane deployable structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920282112.9U CN210116655U (en) | 2019-03-06 | 2019-03-06 | Novel plane deployable structure |
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| CN210116655U true CN210116655U (en) | 2020-02-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217408A (en) * | 2019-03-06 | 2019-09-10 | 浙江大学 | A kind of novel planar deployable structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217408A (en) * | 2019-03-06 | 2019-09-10 | 浙江大学 | A kind of novel planar deployable structure |
| CN110217408B (en) * | 2019-03-06 | 2023-11-03 | 浙江大学 | Novel plane expandable structure |
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Granted publication date: 20200228 Effective date of abandoning: 20231103 |
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