CN115447805B - Unfolding device for sailboard of micro-nano satellite and micro-nano satellite - Google Patents
Unfolding device for sailboard of micro-nano satellite and micro-nano satellite Download PDFInfo
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- CN115447805B CN115447805B CN202211401468.2A CN202211401468A CN115447805B CN 115447805 B CN115447805 B CN 115447805B CN 202211401468 A CN202211401468 A CN 202211401468A CN 115447805 B CN115447805 B CN 115447805B
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- 230000007246 mechanism Effects 0.000 claims abstract description 91
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- 238000010586 diagram Methods 0.000 description 14
- 238000005381 potential energy Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 238000003892 spreading Methods 0.000 description 4
- 108091092878 Microsatellite Proteins 0.000 description 3
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- 239000002131 composite material Substances 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
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- 239000000758 substrate Substances 0.000 description 3
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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
- B64G1/42—Arrangements or adaptations of power supply systems
- B64G1/44—Arrangements or adaptations of power supply systems using radiation, e.g. deployable solar arrays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
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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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Abstract
The embodiment of the invention discloses a unfolding device for a sailboard of a micro-nano satellite and the micro-nano satellite, and relates to the technical field of space satellite devices, wherein the unfolding device comprises a storage mechanism and a driving mechanism, the storage mechanism and the sailboard are in the same plane, and the sailboard is moved from a folding position overlapped with the storage mechanism to an unfolding position not overlapped with the storage mechanism in a mode of rotating in the plane through the driving mechanism; the receiving mechanism fixed to the satellite body is used for receiving the sailboard in the folded position; the driving mechanism comprises a rotor, a stator, a rotating shaft and an elastic piece, wherein the rotor and the stator are sleeved on the rotating shaft side by side, the rotor is fixedly connected with the sailboard, the stator is fixedly connected with the receiving mechanism, and the driving mechanism is configured to enable the elastic piece to drive the rotor to rotate relative to the stator so that the sailboard rotates from a folding position to a unfolding position along an unfolding direction. The unfolding device is low in cost and easy to machine, and can reduce the size envelope and the impact on unfolding of the sailboard.
Description
Technical Field
The invention relates to the technical field of space satellite devices, in particular to a device for unfolding a sailboard for a micro-nano satellite and the micro-nano satellite.
Background
Microsatellites, typically satellites having a wet weight of between 1 and 10 kilograms (2.2-22 pounds) or between 10 and 100 kilograms (22 to 220 pounds), are sometimes designed in a way that the satellites operate in combination or group, and when several microsatellites are operated in group, they can be collectively referred to as a "constellation" or "geostationary". With the development of miniaturization and performance improvement of electronic technology and the application of a series of assumptions about satellites, the commercial requirements of nano-satellites are increasing, and these commercial requirements are mostly met by micro-satellites before, for example, 6u cubic satellite standard is proposed to make a 35.8 kg (18 pounds) earth imaging satellite group replace a satellite group consisting of 5 156 kg (344 pounds) fast imaging earth imaging satellites, which has a significant improvement in the number of revisits at the same cost: instead of each 24 hours of snapshots, each region on earth can be repeatedly illuminated every 3.5 hours.
The existing propulsion technology of the micro-nano satellite mainly uses a solar cell, and the solar thermal energy collected by a solar cell module is converted into electric energy to supply power to the satellite. The micro-nano satellite is limited in size and cannot carry a large-area solar cell array, so that the solar cell is combined with the sailboard, the sailboard needs to be unfolded to receive an energy source after the micro-nano satellite enters the track, a common sailboard unfolding device is unfolded through the hinge, the unfolding size envelope of the sailboard in the technical scheme is large, the hinge occupies a small space, great design difficulty exists, the unfolding angle of the sailboard is mostly not 90 degrees, the orientation of the unfolded sailboard is inconsistent, the utilization efficiency is low, and the sailboard is not illuminated or has a poor sun-facing angle in a furled state. In the prior art, the sailboard is driven to be unfolded in a motor driving mode, so that more freedom degree control can be realized, but the motor can occupy more space and mass of the micro-nano satellite. Utility model patent CN202022669375.0 discloses a pneumatic type slip expansion device that receives satellite usefulness, and this utility model discloses a disclosed technical scheme passes through magnetic force suction fastening box, utilizes the outage to lose suction, and gaseous unblock box of gas cabin release, but this structure exists the expansion mode unstable, and expansion length is limited, and can not accomplish the problem of multistage expansion task.
Disclosure of Invention
In order to solve the technical problems, embodiments of the present invention desirably provide a device for unfolding a windsurfing board for a micro/nano satellite, and a micro/nano satellite, where the windsurfing board can be stably unfolded by the unfolding device and the size envelope of the windsurfing board when the windsurfing board is unfolded is reduced.
The technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a device for unfolding a windsurfing board for a micro-nano satellite, including a storage mechanism and a driving mechanism, where the storage mechanism and the windsurfing board are in the same plane, and the windsurfing board is driven by the driving mechanism to move in a manner of rotating in the plane from a folded position overlapping with the storage mechanism to an unfolded position not overlapping with the storage mechanism.
In a second aspect, an embodiment of the present invention provides a micro/nano satellite, where the micro/nano satellite includes the deployment apparatus according to the first aspect.
According to the unfolding device for the windsurfing boards of the micro-nano satellite, the elastic potential energy of the torsion spring is used as the driving source, the windsurfing boards and the storage mechanism which are located on the same plane are unfolded in a mode of rotating around the rotating shaft, the windsurfing boards are unfolded in a mode of rotating in the plane, the impact on the windsurfing boards is reduced, the unfolding device is simple in structure, the size envelope of the windsurfing boards during unfolding can be reduced, the manufacturing can be achieved through simple processing, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic diagram of a windsurfing board of an unfolding apparatus for a windsurfing board of a micro-nano satellite in a folded position according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a windsurfing board of a spreading device for a windsurfing board of a micro-nano satellite in a spreading position according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a windsurfing board of a spreading device for a windsurfing board of a micro-nano satellite according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a storage mechanism of a deployment device for a windsurfing board of a micro-nano satellite according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a driving mechanism of a unfolding device for a windsurfing board of a micro-nano satellite according to an embodiment of the invention;
fig. 6 is a schematic connection diagram of a rotor and a sailboard in an unfolding apparatus for a sailboard of a micro/nano satellite according to an embodiment of the present invention;
fig. 7 is a schematic connection diagram of a stator and a base of a deployment device for a windsurfing board of a micro-nano satellite according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a stator of a spreading device for a windsurfing board of a micro-nano satellite according to an embodiment of the present invention;
fig. 9 is a top view of a stator of a deployment device for a windsurfing board of a micro/nano satellite according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a rotor of a deployment device for a windsurfing board of a micro-nano satellite according to an embodiment of the present invention;
fig. 11 is a bottom view of a rotor of a deployment device for a windsurfing board of a micro/nano satellite according to an embodiment of the present invention;
fig. 12 is a schematic view of a torsion spring of an unfolding apparatus for a windsurfing board of a micro/nano satellite according to an embodiment of the present invention;
fig. 13 is a schematic view illustrating installation of a torsion spring in an unfolding apparatus for a windsurfing board for a micro/nano satellite according to an embodiment of the present invention;
fig. 14 is a schematic diagram illustrating a positional relationship between a stator and a rotor when a sailboard is located at a deployed position in an unfolding apparatus for a sailboard for a micro/nano satellite according to an embodiment of the present invention;
fig. 15 is a schematic diagram illustrating a positional relationship between a stator and a rotor when a windsurfing board is in a folded position in an unfolding apparatus for a windsurfing board of a micro/nano satellite according to an embodiment of the present invention;
fig. 16 is a schematic diagram of a position relationship between a fixing plate and a base of a micro/nano satellite according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a fixing plate of a micro/nano satellite according to an embodiment of the invention.
Description of the reference numerals
The device comprises a 10 unfolding device, a 1 sailboard, a 11 round hole, a 2 storage mechanism, a 21 base, a 22 support, a 3 driving mechanism, a 31 stator, a 311 threaded hole, a 312 first accommodating groove, a 313 baffle, a 32 rotor, a 321 assembly threaded hole, a 322 through hole, a 323 second accommodating groove, a 324 first protrusion, a 325 second protrusion, a 33 rotating shaft, a 34 torsion spring, a 341 first section, a 342 second section and a 4 fixing plate.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the prior art, a sailboard unfolding mechanism mainly used for a large satellite is formed by connecting each base board or sailboard through a hinge, the base board can be gradually unfolded to a specified position from a treatment position by electric drive, however, since a micro-nano satellite is limited by the size of the micro-nano satellite and the energy source which can be controlled by the satellite, a folding base board which is unfolded through the hinge is frequently used, and the base board is driven to be unfolded and locked at a specified position by using the elastic potential energy of a spring or the potential energy stored in a memory material as a power source. However, the size envelope of the substrate unfolded through the hinge in the prior art is large, the design difficulty is high, the unfolding angle is difficult to control, and the orientation of the substrate after being unfolded cannot be unified, so that the utilization rate of the substrate is low.
In view of the above, an embodiment of the present invention provides a unfolding apparatus 10 for a windsurfing board 1 of a micro-nano satellite, referring to fig. 1 and 2, the apparatus includes a receiving mechanism 2 and a driving mechanism 3, the receiving mechanism 2 is in the same plane as the windsurfing board 1, the driving mechanism 3 is configured to drive the windsurfing board 1 to rotate in the plane, and the windsurfing board 1 can be unfolded in a rotating manner by driving of the driving mechanism 3, where the unfolding refers to that the windsurfing board 1 moves and rotates from a folded position overlapping with the receiving mechanism 2 to an unfolded position not overlapping with the receiving mechanism 2.
Referring to fig. 3, the windsurfing board 1 is used for mounting a solar cell panel or a solar cell piece on the surface of the windsurfing board 1 to absorb sunlight and directly or indirectly convert solar radiation energy into electric energy through a photoelectric effect or a photochemical effect, generally, the windsurfing board 1 is light-weight and is generally made of ultra-light composite materials, and metal thin layers are adhered to two sides of the composite materials to improve the strength and rigidity of the composite materials, and the windsurfing board 1 has the characteristics of low density, high mechanical strength and good heat insulation performance.
Referring to fig. 4, the receiving mechanism 2 comprises a base 21 for connecting with the satellite body, and the receiving mechanism 2 is configured to receive the windsurfing board 1 in a folded position, referring to fig. 1 and 2, where the folded position refers to a state where the windsurfing board 1 overlaps the receiving mechanism 2 during the unfolding process, i.e. the windsurfing board 1 is in the folded position all the time during the process of the windsurfing board 1 being completely accommodated in the receiving mechanism 2 until the entire windsurfing board 1 is rotated out of the receiving mechanism 2, and correspondingly, referring to fig. 2, the windsurfing board 1 is shown in the unfolded position, and the unfolded position refers to a state where there is no overlapping portion between the windsurfing board 1 and the receiving mechanism 2 after the windsurfing board 1 has completed the unfolding operation. The sailboard 1 is stored in the storage mechanism 2 and leaves the storage mechanism 2 in a manner of rotating in a stored plane, so that the form impact on the sailboard 1 in the unfolding process is reduced, the occupied space of the whole unfolding device is saved, and the design of unfolding multiple sailboards is facilitated.
The driving mechanism 3 includes a stator 31, a rotor 32, a rotating shaft 33, and an elastic member, and referring to fig. 5, the rotor 32 and the stator 31 are arranged side by side on the rotating shaft 33. Referring to fig. 6 and 7, the rotor 32 is connected to the windsurfing board 1, and the stator 31 is connected to the base 21 of the storage mechanism 2, and in the above configuration, the windsurfing board 1 and the storage mechanism 2 are arranged in parallel along the length direction of the rotating shaft 33. Referring to fig. 6 and 7, the rotor 32 is disposed at one corner of the windsurfing board 1, and the stator 31 is disposed at one corner of the base 21, so that the windsurfing board 1 can rotate from the folded position to the unfolded position with the rotation shaft 33 as a central axis. Specifically, the rotor 32 and the windsurfing board 1 can be formed as a whole, and for convenience of manufacturing, the stator 31 and the windsurfing board 1 can also be manufactured separately and then fixedly connected by bolts, referring to fig. 6, a round hole 11 is formed at one corner of the windsurfing board 1, a threaded assembling hole 321 is formed at the top of the rotor 32, and bolts are screwed into the threaded assembling hole 321 through the round hole 11 so as to fix the windsurfing board 1 and the rotor 32 as a whole. The stator 31 and the base 21 can be separately manufactured and fixedly connected through bolts, in order to ensure the stability of the stator 31 and the base 21 and the reliability of the unfolding device 10, the stator 31 and the base 21 are preferably integrally manufactured, and the driving mechanism 3 is configured such that the elastic member drives the rotor 32 to rotate around the rotating shaft 33 relative to the stator 31, so as to drive the sailboard 1 to rotate around the rotating shaft 33 relative to the base 21 to realize the unfolding of the sailboard 1.
In order to ensure the structural reliability of the deployment device and the stability of the deployment of the windsurfing board 1, the stator 31 is provided with a threaded hole 311 fixedly connected with the rotating shaft 33 in a threaded manner, see fig. 8 and 9, and correspondingly, the rotating shaft 33 is provided with a thread matching the threaded hole 311 on the outer circumferential surface of the section located inside the stator 31, and when the rotating shaft 33 is screwed into the threaded hole 311, the stator 31 and the rotating shaft 33 are kept relatively stationary. Referring to fig. 10 and 11, the rotor 32 has a through hole 322 therein through which the rotary shaft 33 passes. With the above configuration, the rotor 32 is rotatable about the rotation shaft 33, and the rotation shaft 33 is held stationary relative to the stator 31, thereby achieving rotation of the rotor 32 relative to the stator 31.
The driving mechanism 3 is configured to drive the rotor 32 to rotate relative to the stator 31 through the elastic member, so as to drive the windsurfing board 1 to rotate relative to the base 21, so as to rotate the windsurfing board 1 from the folded position to the unfolded position along the unfolding direction, wherein the elastic member is preferably a torsion spring, which is also called a coil spring, and the torsion spring has high strength and good toughness. The one end of the torsional spring is fixed, the other end of the torsional spring is connected to other components, when the other components rotate around the center of the torsional spring, the torsional spring accumulates elastic potential energy to generate torque or rotating force, and the other components are pulled back to the initial position by releasing the elastic potential energy. In an embodiment of the unfolding apparatus for a windsurfing board 1 for a micro-nano satellite according to the present invention, referring to fig. 12, a schematic structural diagram of a torsion spring 34 is shown, an end of the torsion spring 34 is configured as a straight torsion arm, a first section 341 at one end of the torsion spring 34 is fixed to the stator 31, a second section 342 at the other end of the torsion spring 34 is fixed to the rotor 32, when the windsurfing board 1 is in the folded position, the torsion spring 34 is rotated to a contracted state, that is, an included angle between the first section 341 and the second section 342 is 0 degree, in a substantially parallel state, so that the torsion spring 34 is kept tensed and accumulates elastic potential energy, and when the torsion spring 34 generates a torque by releasing the elastic potential energy, the second section 342 is unfolded in a manner of rotating around a central axis of the torsion spring 34 until the included angle between the first section 341 and the second section 342 is unfolded to a 90 degree position. In the embodiment of the present invention, the second section 342 is fixedly installed in the rotor 32, the first section 341 is fixed in the stator 31, and the rotation shaft 33 is disposed coaxially with the torsion spring 34, so that, in the case where the stator 31 is fixedly installed in the base 21, the second section 342 drives the rotor 32 to rotate 90 degrees relative to the stator 31 in a manner of rotating around the rotation shaft 33, that is, the windsurfing board 1 rotates 90 degrees relative to the base 21 in a manner of rotating around the rotation shaft 33, and rotates from a position completely stowed in the stowing mechanism 2 to the deployed position.
Referring to fig. 8 to 11, the stator 31 is provided with a first receiving groove 312 radially outwardly along the threaded hole 311, and the rotor 32 is provided with a second receiving groove 323 radially outwardly along the through hole 322, wherein the first receiving groove 312 and the second receiving groove 323 are shaped to match the shape of the straight torsion arm at the end of the torsion spring 34, thereby stably contacting and holding the torsion spring 34 at the end of the torsion spring 34, and being capable of receiving the elastic potential energy of the torsion spring 34 and converting it into kinetic energy for unfolding the windsurfing board 1 with maximum efficiency. When the rotor 32 and the stator 31 are disposed side by side on the rotating shaft 33, the first receiving groove 312 coincides with the central axis of the second receiving groove 323, the first section 341 of the torsion spring 34 is received in the first receiving groove 312, the second section 342 is received in the second receiving groove 323, referring to fig. 13, the torsion spring 34 is partially received in the first receiving groove 312, and the other part is received in the second receiving groove 323, the end of the torsion spring 34 contacts and abuts against the groove walls of the first receiving groove 312 and the second receiving groove 323, and the rotor 32 is driven to rotate around the central axis of the torsion spring 34 along the releasing direction of the torsion spring 34 (the releasing direction is equal to the unfolding direction) by a torsional force.
Preferably, the deployment device further comprises a release mechanism (not shown) for releasing the torsion spring 34, the release mechanism being used for keeping the member storing the elastic potential energy in a tense state and releasing the member to convert the stored elastic potential energy into the energy required by the corresponding member when the satellite needs to deploy the windsurfing board 1, and in the deployment device 10, any one of explosive bolts, hot knives or initiating explosive devices mature in the prior art can be selected as the release mechanism, and the release mechanism can receive a signal to release the member held by the satellite when the windsurfing board is deployed.
Specifically, when the unfolding device for the windsurfing board 1 for the micro-nano satellite disclosed in the above embodiment of the present invention is used, the windsurfing board 1 is completely accommodated in the accommodating mechanism 2 before being unfolded, the windsurfing board 1 completely overlaps with the base 21, the torsion spring 34 accumulates elastic potential energy and is held by the release mechanism, when the windsurfing board 1 needs to be unfolded, the satellite main body sends a release signal to the release mechanism, the torsion spring 34 releases the elastic potential energy to generate a torque, the stator 31 and the base 21 are integrally fixed to the satellite main body, and the rotor 32 is driven by the torque to rotate relative to the stator 31 by taking the rotating shaft 33 as a central axis, so as to drive the windsurfing board 1 to rotate relative to the base 21 by taking the rotating shaft 33 as a central axis until the windsurfing board 1 rotates to the unfolding position.
In order to avoid that the windsurfing board 1 rotates too much during the storing process and the unfolding process and affects the reliability of the unfolding device, referring to fig. 14 and 15, the stator 31 and the rotor 32 are further provided with positioning components, the positioning components comprise a first protrusion 324 and a second protrusion 325 arranged at the bottom of the rotor 32 and a baffle 313 arranged on the outer wall of the stator 31, and the first protrusion 324 and the second protrusion 325 rotate along with the rotor 32. When the windsurfing board 1 is to be unfolded, it is necessary to manually stow the windsurfing board 1, i.e. to rotate the windsurfing board 1 in a direction facing away from the deployment direction to a position fully received in the stowing mechanism 2 and held by the release mechanism. The first protrusion 324 and the blocking plate 313 are configured such that, during the process of storing the windsurfing board 1, when the windsurfing board 1 is completely stored in the storing mechanism 2, referring to fig. 15, the first protrusion 324 contacts and abuts against the blocking plate 313, and the blocking plate 313 limits the first protrusion 324 from rotating continuously to prevent the rotor 32 from rotating excessively in a direction away from the unfolding direction, so as to affect the reliability and stability of the unfolding apparatus 10. Referring to fig. 14 and 15, when the windsurfing board 1 is unfolded, the second protrusion 325 follows the rotor 32 to rotate, and the second protrusion 325 is configured such that when the windsurfing board 1 is rotated to the unfolded position, the second protrusion 325 contacts and abuts against the outer wall of the stator 31, such that the rotor 32 cannot continue to rotate in the unfolding direction. The rotation range of the windsurfing board 1 is limited by the positioning component, and the driving mechanism 3 can accurately unfold the windsurfing board 1 to a required position. It is noted that the torsion spring 34 has sufficient elastic potential energy, when the second protrusion 325 is in contact with the outer wall of the stator 31, the torsion spring 34 is still in tension, and the torsion spring 34 continues to apply a rotational force to the rotor 32 in the deployment direction to stably hold the windsurfing board 1 in the deployed position.
Preferably, referring to fig. 4, in order to stably hold the windsurfing board 1 in the storing mechanism 2, a stand 22, preferably three in number, is arranged on top of the storing mechanism 2, and is used for supporting the windsurfing board 1 when the windsurfing board 1 is in the unfolded position, so that the windsurfing board 1 can be unfolded smoothly.
In another embodiment of the present invention, the stent 10 is designed and assembled in a modular manner to further expand the applicability of the stent 10, enhance its ability to receive light to provide more energy to the spacecraft, and enhance the design flexibility of the stent 10. In view of this, the number of windsurfing boards 1 in the deployment device 10 is two or more and the number of driving mechanisms 3 corresponding to the windsurfing boards 1 is two or more, wherein a single driving mechanism 3 is used for driving the rotational deployment of a single windsurfing board 1. In order to avoid that a plurality of windsurfing boards 1 collide with each other during deployment, the plurality of windsurfing boards 1 in this configuration are configured to perform deployment in different horizontal planes in a vertical direction, and a plurality of windsurfing boards 1 are received in the receiving mechanism 2 in a stacked manner in the vertical direction when the plurality of windsurfing boards 1 are in a collapsed position.
Exemplarily, the deployment device 10 includes four windsurfing boards 1 and four corresponding driving mechanisms 3, the four driving mechanisms 3 are configured to have stators with different heights so that the four driving mechanisms 3 are in different horizontal planes in the vertical direction, and each of the four driving mechanisms 3 can independently drive a corresponding one of the windsurfing boards 1 to be rotationally deployed in the same manner. Preferably, the four driving mechanisms 3 are arranged at the four corners of the base 21, the four driving mechanisms 3 being intended to keep the respective attached windsurfing boards 1 in horizontal planes at different heights in order to prevent the windsurfing boards 1 from colliding with each other during deployment, the windsurfing boards 1 in this configuration having the same shape. It is noted that when the shape of the windsurfing board 1 is square, the length of the diagonal of the windsurfing board 1 is smaller than the distance between two adjacent driving mechanisms 3 to prevent the windsurfing board 1 from colliding with the adjacent driving mechanisms 3 during deployment, and in another embodiment, the shape of the windsurfing board 1 may be a sector with a radius equal to the distance between two adjacent driving mechanisms 3 to prevent the windsurfing board 1 from colliding with the adjacent driving mechanisms 3 during deployment.
When the unfolding device 10 needs to be unfolded, the four driving mechanisms 3 simultaneously drive the respective corresponding sailboards 1 to be unfolded, and in the unfolding process under the configuration, the four sailboards 1 are in respective horizontal planes along the vertical direction, and are unfolded from the folded position to the unfolded position and locked under the driving of the driving mechanisms 3. Under this inventive concept, the deployment device 10 can include more or fewer drive mechanisms to meet more design requirements.
The invention also provides a micro-nano satellite which can reliably and stably unfold the sailboard 1, and in order to achieve the purpose, the unfolding device of the sailboard 1 of the micro-nano satellite can be the unfolding device for the sailboard 1 of the micro-nano satellite. Preferably, in order to further improve the working efficiency of the satellite windsurfing board 1 and obtain more solar energy, the micro/nano satellite further comprises a fixing plate 4, referring to fig. 16 and 17, the fixing plate 4 is fixedly mounted on the top of the base 21 of the receiving mechanism 2 through bolts, and when the windsurfing board 1 is located at the unfolded position, the fixing plate 4 is completely exposed to absorb more solar energy.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should be noted that: the technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides an expansion device for receiving sailboard of satellite a little, includes receiving mechanism and actuating mechanism, its characterized in that:
the storage mechanism and the sailboard are in the same plane, and the sailboard is driven by the driving mechanism to move in a manner of rotating in the plane from a folded position overlapped with the storage mechanism to an unfolded position not overlapped with the storage mechanism; wherein the content of the first and second substances,
the storage mechanism is used for storing the sailboard in the folded position and is fixed to the satellite body;
the driving mechanism comprises a rotor, a stator, a rotating shaft and an elastic piece, wherein the rotor and the stator are sleeved on the rotating shaft side by side, the rotor is fixedly connected with the sailboard, the stator is fixedly connected with the receiving mechanism, and the driving mechanism is configured in such a way that the elastic piece drives the rotor to rotate relative to the stator so as to enable the sailboard to rotate from the folded position to the unfolded position along the unfolding direction;
the stator outer wall is provided with a baffle plate, the rotor bottom is provided with a first protrusion, and the driving mechanism is configured such that when the windsurfing board is fully accommodated in the accommodating mechanism, the baffle plate is in contact with the first protrusion to prevent the rotor from rotating in a direction opposite to the unfolding direction;
the rotor bottom is also provided with a second protrusion, the drive mechanism being configured such that when the windsurfing board body is in the unfolded position, the second protrusion is in contact with the stator outer wall to prevent the rotor from continuing to rotate towards the unfolded direction.
2. The deployment device of claim 1, wherein: the stator is provided with a threaded hole fixedly connected with the rotating shaft in a threaded manner, the rotor is provided with a through hole for assembling the rotating shaft, the driving mechanism is configured to enable the stator and the rotating shaft to be kept relatively static when the elastic piece drives the rotor to rotate relative to the stator, and the rotor rotates by taking the rotating shaft as a rotating center.
3. The deployment device of claim 2, wherein: the elastic piece is the torsional spring, the stator is followed the screw hole is radially outwards provided with first storage tank, the rotor is followed the through-hole is radially outwards provided with the second storage tank, actuating mechanism is configured into partly holding of torsional spring is in first storage tank, another part holding of torsional spring is in the second storage tank.
4. The deployment device of claim 1, wherein: and a support is arranged at the top of the storage mechanism and used for supporting and keeping the sailboard in the unfolded position.
5. The deployment device of claim 1, comprising two or more said windsurfing boards and corresponding two or more said driving mechanisms, wherein two or more said windsurfing boards are configured to rotate in a vertical direction in different horizontal planes in said deployment direction from said stowed position to said deployed position.
6. A micro-nano satellite comprising a deployment device according to any one of claims 1 to 5.
7. The micro-nano satellite according to claim 6, further comprising a fixing plate fixed to the top of the storage mechanism through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401468.2A CN115447805B (en) | 2022-11-09 | 2022-11-09 | Unfolding device for sailboard of micro-nano satellite and micro-nano satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401468.2A CN115447805B (en) | 2022-11-09 | 2022-11-09 | Unfolding device for sailboard of micro-nano satellite and micro-nano satellite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115447805A CN115447805A (en) | 2022-12-09 |
| CN115447805B true CN115447805B (en) | 2023-03-21 |
Family
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| CN204239446U (en) * | 2014-11-18 | 2015-04-01 | 中国科学院沈阳自动化研究所 | Outspreading sailboard of solar cell locking framework |
| KR101765876B1 (en) * | 2016-03-31 | 2017-08-08 | 충남대학교 산학협력단 | Unfold device of cubesat boom |
| CN113895658B (en) * | 2021-11-17 | 2022-07-26 | 北京微纳星空科技有限公司 | Satellite sailboard unfolding mechanism and microsatellite |
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