CN115924134A - Off-orbit sail device and satellite - Google Patents
Off-orbit sail device and satellite Download PDFInfo
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- CN115924134A CN115924134A CN202211626982.6A CN202211626982A CN115924134A CN 115924134 A CN115924134 A CN 115924134A CN 202211626982 A CN202211626982 A CN 202211626982A CN 115924134 A CN115924134 A CN 115924134A
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- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 74
- 101000606504 Drosophila melanogaster Tyrosine-protein kinase-like otk Proteins 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
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Abstract
The invention relates to the technical field of satellites, in particular to an off-orbit sail device and a satellite. The off-rail sail device comprises a box body, a rotating shaft, a locking assembly, an off-rail sail and a plurality of memory alloy rods, wherein the box body comprises a top plate, a bottom plate and a plurality of side plates, and the side plates are movably arranged between the top plate and the bottom plate in an enclosing mode. The rotating shaft is rotatably arranged between the top plate and the bottom plate, and the locking assembly can lock or unlock the rotating shaft. The center of the off-rail sail is fixed in the box body, and the side plates are respectively connected with the outer edge of the off-rail sail. One end of each memory alloy rod is connected with the corresponding side plate, and the other end of each memory alloy rod is fixedly arranged on the rotating shaft. The memory alloy rods are wound on the rotating shaft, so that the side plates are spliced and connected, and the off-rail sail is folded and collected in the box body; or the memory alloy rods extend outwards to reset after the rotating shaft is unlocked and drive the side plates to move away from the rotating shaft so as to extend the derailed sail. The satellite can break away from the track and fall into the atmosphere to be burnt through the off-orbit sail device, and the satellite is prevented from becoming space debris.
Description
Technical Field
The invention relates to the technical field of satellites, in particular to an off-orbit sail device and a satellite.
Background
The cubic satellite (cubic satellite for short) is a micro-nano satellite with standardized volume and shape, and has the advantages of low cost, short development period, high functional density and the like. The cuboids generally fly on low earth orbit, and become space debris if the cuboids are not processed in an off-orbit mode after completing a mission, so that the safety of the on-orbit aircraft is influenced.
Currently, the main off-orbit modes of the cube include a propelling technology, an inflatable ball technology, an electric power tether and the like. The propulsion technology needs to consume the propellant on the cube, increases the overall mass of the cube, needs continuous thrust vector control in the off-orbit process, and has great overall technical difficulty. The inflatable ball technology has the risk of high-pressure gas leakage inside the balloon, and the reliability of the off-orbit process of the cube star is reduced. The rope body in the electric power rope can reach tens of meters or even kilometers after being unfolded, the safe operation of the cube star is easily influenced, and the reliability of the cube star in the off-orbit process is also reduced.
Therefore, there is a need for an off-orbit sail apparatus and satellite to solve the above problems.
Disclosure of Invention
The invention aims to provide an off-orbit sail device and a satellite, so that the satellite in a near-earth orbit can be safely and reliably separated from the orbit, and the satellite can be prevented from becoming space debris.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an off-rail sail apparatus, comprising:
the box body comprises a top plate, a bottom plate and a plurality of side plates, and the side plates are movably enclosed between the top plate and the bottom plate;
the rotating shaft is rotatably arranged between the top plate and the bottom plate, and the locking assembly can lock or unlock the rotating shaft;
the center of the off-rail sail is fixed in the box body, and the side plates are respectively connected with the outer edge of the off-rail sail; and
one end of each memory alloy rod is connected with the corresponding side plate, and the other end of each memory alloy rod is fixedly arranged on the rotating shaft; the memory alloy rods are wound on the rotating shaft, so that the side plates are spliced and connected, and the off-rail sail is folded and collected in the box body; or the memory alloy rods extend outwards to reset after the rotating shaft is unlocked and drive the side plates to move away from the rotating shaft so as to unfold the off-rail sail.
As a preferred scheme, the off-orbit sail is formed by splicing a plurality of split sails; and one split sail is arranged between every two adjacent memory alloy rods, the central corner part of each split sail is fixedly arranged in the box body, and the two corner parts are respectively connected with the two adjacent side plates.
Preferably, the side plate includes:
the main body plates are movably enclosed between the top plate and the bottom plate; and
and the switching block is fixedly arranged on the inner side of the main body plate, is connected with one end of the corresponding memory alloy rod and is respectively connected with the corner parts of the two adjacent split sails.
Preferably, the side plate further comprises two elastic pieces, one ends of the two elastic pieces are connected with the switching block, and the other ends of the two elastic pieces are connected with the corner parts of the two adjacent split sails respectively.
Preferably, the off-rail sail device further comprises a storage cover, one storage cover is arranged between every two adjacent memory alloy rods, and the storage cover is provided with an opening facing outwards; the central corner part of the split sail is fixedly arranged in the corresponding storage cover, and the two corner parts of the split sail extend out of the opening of the storage cover respectively and then are correspondingly connected with the two adjacent side plates.
As a preferred scheme, the off-rail sail device further comprises a guide post, and the guide post is rotatably arranged between the top plate and the bottom plate; and the two sides of each memory alloy rod, which are perpendicular to the extension direction, are provided with the guide posts.
Preferably, two sides of each memory alloy rod perpendicular to the extending direction are provided with a group of guide pillars, each group is provided with a plurality of guide pillars arranged at intervals, and a telescopic channel of the memory alloy rod is formed between the two groups of guide pillars.
Preferably, the corner positions of the upper end surface of the top plate are provided with convex blocks, and the convex blocks can be abutted against the outer surface of the star body of the satellite, so that an avoidance space is formed between the upper end surface of the top plate and the outer surface of the star body.
Preferably, the off-rail sail is a polyimide film plated with aluminum on both sides.
A satellite comprises a star body and the off-orbit sail device, wherein a top plate of the off-orbit sail device is arranged on the star body.
The invention has the beneficial effects that:
according to the off-orbit sail device, after the service life of the satellite on the near-earth orbit is prolonged, the locking assembly unlocks the rotating shaft, the memory alloy rods extend outwards to reset and drive the side plates to move away from the rotating shaft so as to unfold the off-orbit sail, and the thin atmospheric resistance borne by the satellite during the flight of the satellite on the near-earth orbit is increased, so that the flight speed of the satellite is reduced, the satellite is separated from the orbit and is accelerated to fall into the atmosphere to be burnt, and the satellite is prevented from becoming space debris. The off-orbit sail device is simple in structure, reliability of the off-orbit sail can be expanded through the automatic recovery characteristic of the memory alloy rod, the expansion process of the off-orbit sail does not need to be additionally controlled, the control difficulty of the off-orbit sail device is reduced, the reliability of the expansion process of the off-orbit sail is improved, a satellite in a near-earth orbit can be safely and reliably separated from the orbit and falls into the atmosphere to be burnt, the satellite is prevented from becoming space debris, and meanwhile, the safety of other spacecrafts on the near-earth orbit is guaranteed.
The satellite provided by the invention comprises the off-orbit sail device, the off-orbit sail device is simple in structure, the reliable unfolding of the off-orbit sail can be realized through the automatic recovery characteristic of the memory alloy rod, the unfolding process of the off-orbit sail is not required to be additionally controlled, the control difficulty of the off-orbit sail device is reduced, the reliability of the unfolding process of the off-orbit sail is improved, the satellite in the near-earth orbit can be safely and reliably separated from the orbit and fall into the atmosphere to be burnt, the satellite is prevented from becoming space debris, and meanwhile, the safety of other spacecrafts on the near-earth orbit is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an off-rail sail apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of an internal structure of an off-track sail apparatus with a pivot shaft locked according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an internal structure of an off-rail sail apparatus with a rotating shaft unlocked according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a rotating shaft according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an off-track sail according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a side panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an off-rail sail device provided in an embodiment of the present invention, after removing a top plate, a side plate, a memory alloy rod, and an off-rail sail.
The component names and designations in the drawings are as follows:
1. a top plate; 11. a through hole; 12. a bump; 13. an observation hole; 2. a base plate; 3. a side plate; 31. a main body plate; 32. a transfer block; 321. a vertical plate; 322. a transverse plate; 33. an elastic member; 4. a rotating shaft; 41. a lock head; 42. a shaft cover; 43. splitting the shaft; 44. a positioning member; 45. a shaft sleeve; 5. an off-orbit sail; 51. a split sail; 511. a central angle part; 512. corner parts; 6. a memory alloy rod; 7. a storage housing; 8. and (6) a guide pillar.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the features relevant to the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The present embodiment proposes a satellite, mainly flying in a near-earth orbit. Specifically, the satellite is a cubic satellite with a small volume, and after the in-orbit cubic satellite reaches the service life, the in-orbit cubic satellite becomes space debris if the in-orbit cubic satellite is not subjected to off-orbit processing, so that the safe operation of the in-orbit satellite or other spacecrafts is influenced.
To solve the above problem, as shown in fig. 1 to 3, the present embodiment further discloses an off-rail sail device, which is mounted on a body of a cube star. Specifically, from rail sail device includes box, pivot 4, locking Assembly, from rail sail 5 and a plurality of memory alloy pole 6, and the box includes roof 1, bottom plate 2 and a plurality of curb plate 3, and a plurality of curb plate 3 enclose to locate between roof 1 and bottom plate 2 movably. The top plate 1 is arranged on the star body, the rotating shaft 4 is rotatably arranged between the top plate 1 and the bottom plate 2, and the locking assembly can lock or unlock the rotating shaft 4. The center of the off-rail sail 5 is fixed in the box body, and the plurality of side plates 3 are respectively connected with the outer edge of the off-rail sail 5. One end of each memory alloy rod 6 is respectively connected with the corresponding side plate 3, and the other end of each memory alloy rod is fixedly arranged on the rotating shaft 4. The memory alloy rods 6 are wound on the rotating shaft 4, so that the side plates 3 are spliced and connected, and the off-rail sail 5 is folded and collected in the box body. Or, after the rotating shaft 4 is unlocked, the memory alloy rods 6 extend outwards to reset and drive the side plates 3 to move away from the rotating shaft 4, so that the derail sail 5 is unfolded.
It should be noted that the normal state of the memory alloy rod 6 is in a natural straightened state. The memory alloy rod 6 has good elasticity and can be correspondingly bent or bent after being subjected to external force. When the external force is removed, the memory alloy rod 6 can automatically restore to the straightening state. In the embodiment, the rotation shaft 4 is rotated to wind the memory alloy rods 6 on the rotation shaft 4, and when the memory alloy rods are wound in place, the rotation shaft 4 is locked, that is, the rotation shaft 4 cannot rotate, so that the memory alloy rods 6 are stably wound on the rotation shaft 4. When the rotating shaft 4 is unlocked, the memory alloy rod 6 drives the rotating shaft 4 to rotate and restore to a straightening state.
When the satellite on the near-earth orbit reaches the service life, the locking assembly unlocks the rotating shaft 4, the memory alloy rods 6 extend outwards to reset and drive the side plates 3 to move away from the rotating shaft 4 so as to expand the off-orbit sail 5, so that the thin atmospheric resistance of the satellite in the near-earth orbit is increased, the flying speed of the satellite is reduced, the satellite is separated from the orbit and falls into the atmosphere to be burnt, and the satellite is prevented from becoming space debris. The off-orbit sail device is simple in structure, the reliable unfolding of the off-orbit sail 5 can be achieved through the automatic recovery characteristic of the memory alloy rod 6, the unfolding process of the off-orbit sail 5 does not need to be controlled additionally, the control difficulty of the off-orbit sail device is reduced, the reliability of the unfolding process of the off-orbit sail 5 is improved, the satellite in the near-earth orbit can be safely and reliably separated from the orbit and falls into the atmosphere to be burnt, the satellite is prevented from becoming space debris, and meanwhile, the safety of other spacecrafts on the near-earth orbit is guaranteed.
The off-orbit sail 5 is a polyimide film with two sides plated with aluminum, is thin in thickness, high in structural strength, convenient to fold and compress, high in reflectivity and capable of effectively resisting solar radiation in a space environment.
As shown in fig. 2, the box body is a rectangular box body and has four side plates 3 and four memory alloy rods 6, the rotating shaft 4 is rotatably disposed at the central positions of the top plate 1 and the bottom plate 2, and one ends of the four memory alloy rods 6 are fixed on the rotating shaft 4. When the four memory alloy rods 6 are wound on the rotating shaft 4, the four side plates 3 can be pulled to be spliced and connected, and the square side wall of the box body is assembled. As shown in fig. 3, when the rotating shaft 4 is unlocked, the rotating shaft 4 is in a free state, and the four memory alloy rods 6 are simultaneously extended and reset, i.e. restored to a straight state. At this time, the memory alloy rod 6 drives the side plate 3 connected with the memory alloy rod to separate, so that the side plate 3 drives the edge of the derailed sail 5 to move, and the derailed sail 5 is unfolded.
As shown in fig. 4, the rotating shaft 4 of the present embodiment includes a locking head 41, a shaft cover 42, split shafts 43 and a positioning element 44, wherein the number of the split shafts 43 is four, the axes of the four split shafts 43 are arranged in a square shape, the four split shafts 43 are surrounded to form a rotating shaft main body, the shaft covers 42 are respectively disposed at the upper end and the lower end of the rotating shaft main body, and the upper end and the lower end of each split shaft 43 are respectively fixedly connected with the corresponding shaft cover 42 through bolts. Two shaft covers 42 are all convexly provided with lock heads 41, the central positions of the top plate 1 and the bottom plate 2 are both provided with through holes 11, and the two lock heads 41 respectively penetrate through the through holes 11 of the top plate 1 and the bottom plate 2 in a rotating manner. Further, the rotating shaft 4 further includes a shaft sleeve 45, the shaft sleeve 45 is movably installed in the through hole 11, and the lock 41 is inserted into the corresponding shaft sleeve 45 and smoothly rotates in the shaft sleeve 45.
Furthermore, the positioning members 44 are mounted on the four split shafts 43, and the positioning members 44 may be bolts, so that one end of the memory alloy rod 6 is connected with the corresponding split shaft 43 through the bolts, thereby improving the stability of mounting the memory alloy rod 6 on the split shaft 43. An accommodation space is provided between two adjacent split shafts 43, and the positioning member 44 is installed in the corresponding accommodation space. One end of each memory alloy rod 6 extends into each of the four accommodating spaces and is fixedly connected with one of the split shafts 43 through a positioning piece 44. As shown in fig. 3, when the four split sails 51 are unfolded, the four memory alloy rods 6 in the straightened state are distributed along the diagonal line of the box, and the extending direction of each memory alloy rod 6 passes through the axis of the rotating shaft 4, so as to avoid the situation that the ends of the memory alloy rods 6 cannot be extended in place due to the fact that the ends of the memory alloy rods are bent around the periphery of the split shaft 43, and to ensure that the split sails 51 are fully unfolded.
Further, a groove is formed in the top end of the lock head 41, and the groove is in a straight line shape, so that the locking assembly can lock the rotating shaft 4 through the groove. Specifically, locking Assembly is hot knife tackle spare, and hot knife tackle spare includes fusing module and the locking line with fusing module butt, and when cube star's star to fusing module circular telegram back, fusing module produces heat and fuses the locking line. Specifically, the fusing module can be a resistor or a resistance wire and the like, and the locking wire is made of a polyethylene material and can be fused after being heated.
As shown in fig. 1, the corner positions of the upper end surface of the top plate 1 are provided with protrusions 12, and the protrusions 12 can abut against the outer surface of the star body of the satellite, so that an avoiding space is formed between the upper end surface of the top plate 1 and the outer surface of the star body, and the installation of the locking assembly is facilitated. In addition, the top plate 1 is also provided with an observation hole 13, so that the condition inside the box body can be conveniently checked through the observation hole 13.
It should be noted that, the four memory alloy rods 6 can be gradually wound on the rotating shaft 4 by engaging one of the lock heads 41 with a tool such as a screwdriver, and rotating the rotating shaft 4, and the four side plates 3 are pulled by the corresponding memory alloy rods 6 to approach each other until they are joined together. At this time, both ends of the locking wire are fixed on the base plate 2, and the middle portion of the locking wire passes through the groove to prevent the rotation of the rotating shaft 4, thereby realizing the locking of the rotating shaft 4. When the unlocking is needed, only the fusing module needs to be electrified, and the locking wire is fused after being heated, so that the rotating shaft 4 is unlocked. The mode of burning the line unblock through hot sword subassembly realizes the unblock of pivot 4, and simple structure need not to use driving pieces such as motor, has improved the reliability of pivot 4 unblock processes.
As shown in fig. 3, when the rotating shaft 4 is unlocked, the rotating shaft 4 is in a free state. The four memory alloy rods 6 are simultaneously stretched and reset, namely are restored to be in a straightening state. At this time, the memory alloy rod 6 drives the side plate 3 connected with the memory alloy rod to separate and move away from the rotating shaft 4, and meanwhile, the side plate 3 drives the edge of the off-rail sail 5 to move so as to unfold the off-rail sail 5.
As shown in fig. 3 and 5, the off-orbit sail 5 is formed by splicing a plurality of split sails 51. The off-orbit sail 5 of the present embodiment comprises four separate sails 51 in a triangular shape, each of the separate sails 51 having three corners. One corner of the split sail 51 is fixedly installed in the box body, which is a central corner portion 511. The other two corners are respectively arranged on two adjacent side plates 3 and are corner parts 512. A split sail 51 is arranged between two adjacent memory alloy rods 6, the central corner part 511 of the split sail 51 is fixedly arranged in the box body, and two corner parts 512 are respectively connected with two adjacent side plates 3. The off-rail sail 5 is arranged in a split type, so that the unfolding difficulty of the off-rail sail 5 can be reduced, and each split sail 51 can be fully unfolded.
As shown in fig. 6, the side plate 3 of the present embodiment is in a right-angle L shape, and specifically includes a main plate 31 and an adapter block 32, wherein the main plates 31 are movably enclosed between the top plate 1 and the bottom plate 2. The adapter block 32 is fixedly disposed on the inner side of the main body plate 31, and the adapter block 32 is connected to one end of the corresponding memory alloy rod 6 and is connected to the corner portions 512 of two adjacent split sails 51. Specifically, the adapter blocks 32 are mounted on the inner walls of the side panels 3 and located at four corner positions of the box body. The transfer block 32 is provided with a vertical plate 321 and two horizontal plates 322 in an outward protruding manner, wherein two opposite sides of the vertical plate 321 are provided with the two horizontal plates 322 respectively. Each vertical plate 321 is connected with one of the memory alloy rods 6 through a bolt, and the two horizontal plates 322 are respectively connected with the corner parts 512 of different split sails 51.
Further, the side plate 3 further includes two elastic members 33, one end of each of the two elastic members 33 is connected to the adapting block 32, and the other end is connected to the corner portion 512 of each of the two adjacent split sails 51. The elastic member 33 of this embodiment is a tension spring, and each horizontal plate 322 is fixedly installed with a tension spring, and is elastically connected to the corner portion 512 of the corresponding separate sail 51 through the tension spring. The split sail 51 is tensioned by the tension spring, so that the unfolded off-rail sail 5 is always in a tensioned state, and the full unfolding of the off-rail sail 5 is further realized.
As shown in fig. 2, 3 and 7, the off-rail sail apparatus further includes storage covers 7, one storage cover 7 is disposed between each two adjacent memory alloy rods 6, and the storage covers 7 have openings facing outward. The central corner portion 511 of the split sail 51 is fixedly arranged in the corresponding storage cover 7, and two corner portions 512 of the split sail extend out of the opening of the storage cover 7 respectively and then are correspondingly connected with the two adjacent side plates 3. The storage covers 7 of the embodiment are four, each split sail 51 is folded and collected in one of the storage covers 7, so that the split sails 51 are arranged in a partitioned manner, and the split sails 51 are prevented from interfering in the unfolding and folding processes.
As shown in fig. 3 and 7, the off-rail sail apparatus further includes a guide post 8, and the guide post 8 is rotatably disposed between the top plate 1 and the bottom plate 2. And guide posts 8 are arranged on two sides of each memory alloy rod 6 perpendicular to the extending direction. The guide post 8 can play the guide limiting role in the coiling and stretching resetting processes of the memory alloy rod 6, and the memory alloy rod 6 is prevented from colliding with the storage cover 7, so that the memory alloy rod 6 can be rapidly stretched in place.
Further, two sides of each memory alloy rod 6 perpendicular to the extending direction are provided with a group of guide pillars 8, each group has a plurality of guide pillars 8 arranged at intervals, and a telescopic channel of the memory alloy rod 6 is formed between the two groups of guide pillars 8. Each memory alloy rod 6 can reciprocate in the telescopic channel to be wound on the rotating shaft 4 or extend outwards for restoration.
The satellite of the embodiment comprises the above-mentioned off-orbit sail device, and the reliable expansion of the off-orbit sail 5 can be realized through the automatic recovery characteristic of the memory alloy rod 6, so that the satellite can safely and reliably break away from the orbit and fall into the atmosphere to be burnt, and the satellite is prevented from becoming space debris.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An off-rail sail apparatus, comprising:
the box body comprises a top plate (1), a bottom plate (2) and a plurality of side plates (3), wherein the side plates (3) are movably enclosed between the top plate (1) and the bottom plate (2);
the rotating shaft (4) is rotatably arranged between the top plate (1) and the bottom plate (2), and the locking assembly can lock or unlock the rotating shaft (4);
the center of the off-rail sail (5) is fixed in the box body, and the side plates (3) are respectively connected with the outer edge of the off-rail sail (5); and
one end of each memory alloy rod (6) is connected with the corresponding side plate (3), and the other end of each memory alloy rod (6) is fixedly arranged on the rotating shaft (4); the memory alloy rods (6) are wound on the rotating shaft (4) so that the side plates (3) are spliced and connected and the off-rail sail (5) is folded and collected in the box body; or the memory alloy rods (6) extend outwards to reset after the rotating shaft (4) is unlocked and drive the side plates (3) to move away from the rotating shaft (4) so as to unfold the derailing sail (5).
2. The off-rail sail device according to claim 1, characterized in that said off-rail sail (5) is made up of a plurality of split sails (51) spliced together; the split sail (51) is arranged between every two adjacent memory alloy rods (6), a central corner part (511) of the split sail (51) is fixedly arranged in the box body, and two corner parts (512) are respectively connected with the two adjacent side plates (3).
3. The off-track sail apparatus according to claim 2, characterized in that the side panel (3) includes:
a plurality of main body plates (31), wherein the main body plates (31) are movably enclosed between the top plate (1) and the bottom plate (2); and
the switching blocks (32) are fixedly arranged on the inner sides of the main body plates (31), and the switching blocks (32) are connected with one ends of the corresponding memory alloy rods (6) and are respectively connected with corner parts (512) of two adjacent split sails (51).
4. An off-rail sail device according to claim 3, characterized in that the side panel (3) further comprises two resilient members (33), one end of each of the two resilient members (33) being connected to the transfer block (32) and the other end being connected to a corner portion (512) of each of two adjacent split sails (51).
5. The off-rail sail apparatus according to claim 2, characterized in that the off-rail sail apparatus further comprises a storage cover (7), one storage cover (7) being provided between each two adjacent memory alloy bars (6), the storage cover (7) having an opening facing outward; the central corner part (511) of the split sail (51) is fixedly arranged in the corresponding storage cover (7), and two corner parts (512) of the split sail extend out of the opening of the storage cover (7) respectively and then are correspondingly connected with the two adjacent side plates (3).
6. The off-rail sail apparatus according to claim 1, characterized in that the off-rail sail apparatus further comprises a guide post (8), the guide post (8) being rotatably disposed between the top plate (1) and the bottom plate (2); and the guide post (8) is arranged on two sides of each memory alloy rod (6) perpendicular to the extension direction.
7. An off-rail sailing apparatus according to claim 6, characterized in that each of the memory alloy bars (6) is provided, on both sides perpendicular to the direction of extension, with a set of guide posts (8), each set having a plurality of guide posts (8) arranged at intervals, the two sets of guide posts (8) forming a telescopic channel for the memory alloy bar (6) between them.
8. An off-orbit sailing apparatus according to any one of claims 1 to 7, characterized in that the corner positions of the upper end surface of the top plate (1) are each provided with a lug (12), and the lugs (12) can abut against the outer surface of the star body of the satellite so as to form an escape space between the upper end surface of the top plate (1) and the outer surface of the star body.
9. An off-rail sail device according to any one of claims 1 to 7, characterized in that the off-rail sail (5) is a double-sided aluminized polyimide film.
10. A satellite comprising a star and an off-orbit sail apparatus as claimed in any one of claims 1 to 9, a top panel of the off-orbit sail apparatus being provided on the star.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211626982.6A CN115924134B (en) | 2022-12-16 | 2022-12-16 | Off-orbit sailing device and satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211626982.6A CN115924134B (en) | 2022-12-16 | 2022-12-16 | Off-orbit sailing device and satellite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115924134A true CN115924134A (en) | 2023-04-07 |
| CN115924134B CN115924134B (en) | 2024-03-15 |
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| CN202211626982.6A Active CN115924134B (en) | 2022-12-16 | 2022-12-16 | Off-orbit sailing device and satellite |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205770212U (en) * | 2016-05-25 | 2016-12-07 | 南京理工大学 | A kind of micro-nano satellite braking sail leaves the right or normal track device |
| CN108791965A (en) * | 2018-05-03 | 2018-11-13 | 南京理工大学 | Self-stabilization leaves the right or normal track device without torque cube star braking sail |
| CN113525724A (en) * | 2021-07-05 | 2021-10-22 | 陕西智星空间科技有限公司 | Micro-nano satellite braking sail device |
| CN113650813A (en) * | 2021-08-09 | 2021-11-16 | 南京理工大学 | Active driving type large-scale film unfolding sail device |
| CN114132528A (en) * | 2021-11-30 | 2022-03-04 | 北京卫星制造厂有限公司 | Flexible sail unfolding device |
| CN114261539A (en) * | 2021-12-22 | 2022-04-01 | 浙江时空道宇科技有限公司 | Satellite derailing device |
| CN218777702U (en) * | 2022-12-16 | 2023-03-31 | 苏州馥昶空间技术有限公司 | Off-rail sail device |
-
2022
- 2022-12-16 CN CN202211626982.6A patent/CN115924134B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205770212U (en) * | 2016-05-25 | 2016-12-07 | 南京理工大学 | A kind of micro-nano satellite braking sail leaves the right or normal track device |
| CN108791965A (en) * | 2018-05-03 | 2018-11-13 | 南京理工大学 | Self-stabilization leaves the right or normal track device without torque cube star braking sail |
| CN113525724A (en) * | 2021-07-05 | 2021-10-22 | 陕西智星空间科技有限公司 | Micro-nano satellite braking sail device |
| CN113650813A (en) * | 2021-08-09 | 2021-11-16 | 南京理工大学 | Active driving type large-scale film unfolding sail device |
| CN114132528A (en) * | 2021-11-30 | 2022-03-04 | 北京卫星制造厂有限公司 | Flexible sail unfolding device |
| CN114261539A (en) * | 2021-12-22 | 2022-04-01 | 浙江时空道宇科技有限公司 | Satellite derailing device |
| CN218777702U (en) * | 2022-12-16 | 2023-03-31 | 苏州馥昶空间技术有限公司 | Off-rail sail device |
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| Publication number | Publication date |
|---|---|
| CN115924134B (en) | 2024-03-15 |
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