CN211789492U - Satellite antenna unfolding device - Google Patents
Satellite antenna unfolding device Download PDFInfo
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- CN211789492U CN211789492U CN202020585936.6U CN202020585936U CN211789492U CN 211789492 U CN211789492 U CN 211789492U CN 202020585936 U CN202020585936 U CN 202020585936U CN 211789492 U CN211789492 U CN 211789492U
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- antenna
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- antenna mounting
- mounting plate
- unfolding
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Abstract
The utility model provides a satellite antenna unfolding device, which comprises an antenna mounting plate, a limit support component, an initiating explosive component and an unfolding hinge, wherein the antenna mounting plate is connected with a satellite body through the unfolding hinge, the initiating explosive component comprises an initiating explosive cutter, a connecting rod and a pressing seat, the limit support component comprises a supporting seat and a limiting rod, a limit hole is arranged on the first end surface of the antenna mounting plate, the limiting rod is inserted in the limit hole, the antenna mounting plate can be stably fixed in a satellite release stage, when the antenna needs to be released, the initiating explosive cutter is started, a blade is pushed to cut off the connecting rod, so that the antenna mounting plate is separated from the pressing seat, the lateral thrust generated by cutting is well offset by the limiting rod in the cutting process, the antenna is prevented from being impacted to generate lateral deviation, the impact of the cutting process on a star body is well offset by a buffer component, and the limiting rod and, the antenna mounting plate is opened under the effect of unfolding the hinge, makes the antenna reach the assigned position, possesses fine practicality.
Description
Technical Field
The utility model relates to a satellite device technical field especially relates to a satellite antenna expandes device.
Background
In recent years, commercial space has rapidly developed, and the demand for microsatellites has sharply increased, and satellite antennas are more indispensable communication devices for satellites. During the launching process of the satellite, the satellite antenna is in a folded state to meet the envelope requirements of a plurality of satellites, the satellite antenna is compressed through the satellite antenna unfolding device, and the satellite is in a severe environment during the launching process, if the satellite antenna unfolding device does not have high strength and rigidity, damage can occur to the satellite antenna, and the satellite antenna cannot be unfolded normally after the satellite reaches a preset orbit.
After the satellite antenna unfolding device reaches a preset position, the antenna needs to be unfolded and locked, at present, the release function of the satellite antenna unfolding device is realized by adopting an initiating explosive device, and the initiating explosive device generates a very large impact load when being cut, so that the satellite antenna unfolding device is easy to be impacted to generate deflection, and the antenna is not unfolded in place.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a location accuracy, can resist great impact load when the cutting of firer's subassembly, possess the satellite antenna expansion device of fine stability when expanding.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in one general aspect, there is provided a satellite antenna deployment device comprising an antenna mounting plate, a spacing support assembly, a pyrotechnic assembly and a deployment hinge, wherein:
one end of the unfolding hinge is connected to the satellite body, the other end of the unfolding hinge is connected to one end of the antenna mounting plate, the first end face of the antenna mounting plate faces the satellite body, and the second end face of the antenna mounting plate is provided with an antenna;
the antenna mounting plate is arranged on the satellite body, the other end of the antenna mounting plate is connected with the first mounting hole through the connecting rod, the initiating explosive device is inserted into the second mounting hole, and the first mounting hole is communicated with the second mounting hole;
spacing supporting component includes supporting seat and gag lever post, and the supporting seat sets up in the satellite body, and the support terminal surface of supporting seat is towards the antenna mounting panel, and the gag lever post sets up in the support terminal surface of supporting seat, is provided with spacing hole on the first terminal surface of antenna mounting panel, and the gag lever post is inserted and is located spacing hole.
Optionally, the satellite antenna unfolding device further comprises a buffer assembly, wherein the buffer assembly comprises a buffer base plate, and the buffer base plate is connected and arranged between the pressing seat and the satellite body.
Optionally, the two groups of unfolding hinges are arranged side by side; the antenna mounting panel is trapezoidal plate, and the long limit end of antenna mounting panel is connected in the satellite body through two expansion hinged joint that set up side by side, and the minor face end of antenna mounting panel passes through the connecting rod to be connected in first mounting hole.
Optionally, the number of the limiting rods is two, the two limiting rods are arranged side by side, the number of the limiting holes is two, and the two limiting rods are inserted into the two limiting holes in a one-to-one correspondence manner.
Optionally, a plurality of fastening threaded holes are further formed in the pressing seat, the plurality of fastening threaded holes are arranged around the connecting rod, and the other end of the antenna mounting plate is connected to the fastening threaded holes through screws.
Optionally, the unfolding hinge comprises a fixing part, a torsion spring and a hinged part, the fixing part is arranged on the satellite body, the fixing part and the hinged part are connected through the torsion spring, and one end, far away from the fixing part, of the hinged part is connected with one end of the antenna mounting plate.
The utility model provides a satellite antenna expandes device, because the antenna setting is on the antenna mounting panel, and the one end of antenna mounting panel is through expandeing hinged joint satellite body, the other end of antenna mounting panel passes through the connecting rod and connects and compress tightly the seat, and the gag lever post is inserted and is located spacing hole, therefore satellite release phase antenna mounting panel can be stable fix, and when needs release antenna, the connecting rod is cut off to fire worker's cutterbar drive blade, thereby make antenna mounting panel and compress tightly the seat separation, in the fire worker's cutterbar cutting process, the fine thrust of offsetting the side direction that the cutting produced of gag lever post, avoided the antenna to receive to strike and take place lateral deviation, and gag lever post and spacing hole separately the back, the antenna mounting panel is opened under the effect of expandes hinge, make the stable assigned position that reachs.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of the satellite antenna deployment apparatus of the present invention in a deployed state;
fig. 2 is a schematic structural view of the satellite antenna deployment device of the present invention in a folded state.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
Example one
Fig. 1 is the utility model discloses a structural schematic diagram when satellite antenna expandes device development state, as shown in fig. 1, the embodiment of the utility model discloses a satellite antenna expandes device, including antenna mounting panel, spacing supporting component, firer subassembly, expansion hinge and buffering subassembly. Wherein, antenna mounting panel 1, spacing supporting component 2, initiating explosive device subassembly 3 and expansion hinge 4 are used for can resisting great impact load when initiating explosive device subassembly 3 cuts, make the antenna possess fine stability when expanding, and the buffering subassembly is used for resisting great impact load equally when initiating explosive device subassembly 3 cuts, and the impact that makes the satellite body receive falls to the minimum.
Specifically, one end of the unfolding hinge 4 of the present embodiment is connected to the satellite body, the other end of the unfolding hinge 4 is connected to one end of the antenna mounting plate 1, the unfolding hinge 4 is composed of a fixing portion 43, a torsion spring 42 and a hinge portion 41, the fixing portion 43 is disposed on the satellite body, the fixing portion 43 and the hinge portion 41 are connected by the torsion spring 42, one end of the hinge portion 41 away from the fixing portion 43 is connected to one end of the antenna mounting plate 1, when the antenna mounting plate 1 is folded, the torsion spring 42 is compressed, and when the antenna mounting plate 1 is unfolded, the torsion spring 42 is released, so that the hinge portion 41 and the antenna mounting plate 1. Of course, the unfolding hinge 4 may also be a conventional windsurfing board unfolding mechanism.
Further, the initiating explosive device 3 includes initiating explosive device 31, connecting rod 32 and compress tightly seat 33, it sets up in the satellite body to compress tightly seat 33, it is provided with first mounting hole and second mounting hole to compress tightly on the seat 33, the other end of antenna mounting panel 1 passes through connecting rod 32 to be connected in first mounting hole, initiating explosive device 31 inserts and locates the second mounting hole, first mounting hole and second mounting hole communicate, when needs release antenna, the cutting of initiating explosive device 31, the inside blade of drive cuts off connecting rod 32, connecting rod 32 is cut off the back, under the effect of hinge 4, antenna mounting panel 1 with compress tightly the separation of seat 33. It should be noted that, in order to avoid the connecting rod 32 being impacted in the satellite launching process, a connecting rod fixing seat is arranged on one side of the antenna mounting plate 1 facing the pressing seat 33, and at this time, the first mounting hole is set to be a stepped hole, the diameter of a section of the first mounting hole close to the antenna mounting plate 1 is adapted to the diameter of the connecting rod fixing seat, the connecting rod fixing seat is inserted into a section of the first mounting hole close to the antenna mounting plate 1, and the connecting rod 32 is inserted into a section of the first mounting hole far away from the antenna mounting plate 1 and contacts with the firer cutter 31.
Further, the antenna mounting plate 1 has two end faces, and when the antenna mounting plate is in a folded state, the first end face faces the satellite body, and the second end face is provided with an antenna extending in a direction away from the satellite body. Spacing supporting component 2 includes supporting seat 21 and gag lever post 22, supporting seat 21 is fixed to be set up in the satellite body, supporting seat 21 can all set up between antenna mounting panel 1 and satellite body, also can partly set up between antenna mounting panel 1 and satellite body, the part that supporting seat 21 is located between antenna mounting panel 1 and the satellite body has a support terminal surface, this support terminal surface is towards antenna mounting panel 1, gag lever post 22 sets up on the support terminal surface of supporting seat 21, be provided with spacing hole on the first terminal surface of antenna mounting panel 1, gag lever post 22 is inserted and is located spacing hole, therefore satellite release stage antenna mounting panel 1 can be stable fixed, and when releasing the antenna, the fine thrust of offsetting the side direction that flame cutter 31 produced of gag lever post 22, avoided the antenna to receive the impact and take place lateral deviation.
It should be noted that, in this embodiment, there are two sets of unfolding hinges 4, the two sets of unfolding hinges 4 are arranged side by side, and the antenna mounting board 1 is a trapezoidal board, the long side end of the antenna mounting board 1 is connected to the satellite body through the two unfolding hinges 4 arranged side by side, and the short side end of the antenna mounting board 1 is connected to the first mounting hole through the connecting rod 32. Similarly, the two limiting rods 22 of the present embodiment are also provided, the two limiting rods 22 are arranged side by side, the two limiting holes are also provided, the two limiting rods 22 are inserted into the two limiting holes in a one-to-one correspondence manner, and the stability of the antenna in the cutting process can be increased by increasing the number of the limiting rods 22 and the number of the limiting holes, so that the number of the limiting rods 22 and the number of the limiting holes can be selected according to actual needs. The stability of the antenna mounting board 1 during the unfolding process can be increased by increasing the number of the unfolding hinges 4, and therefore the number of the unfolding hinges 4 can be selected according to actual needs.
Furthermore, in this embodiment, the buffer assembly includes a buffer pad plate, and the buffer pad plate is connected and disposed between the pressing seat 33 and the satellite body, and is used to reduce the impact load to the satellite body when the pyrotechnic assembly 3 is detonated, and the number of the buffer pad plates may also be selected according to actual needs, for example, in this embodiment, three layers of buffer pad plates are disposed.
Example two
Fig. 2 is the structure diagram of the satellite antenna unfolding apparatus in the folded state of the present invention, as shown in fig. 2, as another embodiment of the present invention, it is different from the previous embodiment that the connecting rod 32 is an explosion bolt, the explosion bolt is in contact with the initiating explosive device 31 in the first mounting hole after passing through the antenna mounting plate 1, and the explosion bolt can be detonated by the initiating explosive device 31. Need not to set up the connecting rod fixing base this moment, but be provided with a plurality of fastening screw holes on compressing tightly seat 33, a plurality of fastening screw holes encircle the setting of explosion bolt, and the other end of antenna mounting panel 1 passes through screwed connection in fastening screw hole, increases the stability of antenna mounting panel 1 among the satellite emission process to the screw can be under the effect of explosion bolt 32 with compress tightly seat 33 separation.
In addition, in the present embodiment, the unfolding hinges 4 are arranged differently from the first embodiment, that is, the fixing portion 43 of one unfolding hinge 4 of the present embodiment is arranged on the satellite body, the fixing portion 43 and the hinge portion 41 are connected by the torsion spring 42, one end of the hinge portion 41 away from the fixing portion 43 is connected to one end of the antenna mounting plate 1, the hinge portion 41 of the other unfolding hinge 4 is arranged on the satellite body, the hinge portion 41 and the fixing portion 43 are connected by the torsion spring 42, and one end of the fixing portion 43 away from the hinge portion 41 is connected to one end of the antenna mounting plate 1, so that the torque of the anti-constraint force of the unfolding hinge 4 can be cancelled out, and the.
The embodiment of the specification provides a satellite antenna unfolding device, because an antenna is arranged on an antenna mounting plate 1, one end of the antenna mounting plate 1 is connected with a satellite body through an unfolding hinge 4, the other end of the antenna mounting plate 1 is connected with a pressing seat 33 through a connecting rod 32, and a limiting rod 22 is inserted in a limiting hole, the antenna mounting plate 1 can be stably fixed in a satellite releasing stage, when the antenna needs to be released, an initiating explosive cutter 31 is inserted in a second mounting hole, the first mounting hole is communicated with the second mounting hole, when the antenna needs to be released, the initiating explosive cutter 31 detonates to drive an inner blade to cut off the connecting rod 32, and after the connecting rod 32 is cut off, the antenna mounting plate 1 is separated from the pressing seat 33 under the action of the hinge 4. In the cutting process, the thrust of the side direction that the cutting produced has been offset to the gag lever post 22 is fine, has avoided the antenna to receive to strike and has taken place the lateral deviation, and gag lever post 22 and spacing hole part back, and antenna mounting panel 1 is opened under the effect that expandes hinge 4, makes the stable assigned position that reachs of antenna, possesses fine practicality.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. It should be noted that at least two modifications and refinements may be made by those skilled in the art without departing from the principle of the present application, and these modifications and refinements should also be regarded as the protection scope of the present application.
Claims (6)
1. The utility model provides a satellite antenna expandes device which characterized in that, includes antenna mounting panel, spacing supporting component, firer subassembly and expandes the hinge, wherein:
one end of the unfolding hinge is connected to the satellite body, the other end of the unfolding hinge is connected to one end of the antenna mounting plate, the first end face of the antenna mounting plate faces the satellite body, and the second end face of the antenna mounting plate is provided with an antenna;
the initiating explosive device comprises an initiating explosive device, a connecting rod and a pressing seat, wherein the pressing seat is arranged on the satellite body and is provided with a first mounting hole and a second mounting hole;
the limiting support assembly comprises a support seat and a limiting rod, the support seat is arranged on the satellite body, the support end face of the support seat faces the antenna mounting plate, the limiting rod is arranged on the support end face of the support seat, a limiting hole is formed in the first end face of the antenna mounting plate, and the limiting rod is inserted into the limiting hole.
2. The satellite antenna deployment device of claim 1, further comprising a buffer assembly, wherein the buffer assembly comprises a buffer shim plate, and the buffer shim plate is disposed between the compression seat and the satellite body in a connected manner.
3. The satellite antenna deployment device of claim 1, wherein there are two sets of said deployment hinges, the two sets of said deployment hinges being arranged side by side; the antenna mounting panel is trapezoidal plate, the long limit end of antenna mounting panel sets up side by side through two expand hinged joint in the satellite body, the minor face end of antenna mounting panel passes through the connecting rod connect in first mounting hole.
4. The satellite antenna deployment device of claim 1, wherein there are two of the limiting rods, two of the limiting rods are disposed side by side, and there are two of the limiting holes, and the two limiting rods are inserted into the two limiting holes in a one-to-one correspondence.
5. The satellite antenna unfolding apparatus according to claim 1, wherein a plurality of fastening threaded holes are further formed in the pressing base, the plurality of fastening threaded holes are arranged around the connecting rod, and the other end of the antenna mounting plate is connected to the fastening threaded holes through screws.
6. The satellite antenna unfolding apparatus according to any one of claims 1 to 5, wherein the unfolding hinge comprises a fixing portion, a torsion spring and a hinged portion, the fixing portion is disposed on the satellite body, the fixing portion and the hinged portion are connected through the torsion spring, and one end of the hinged portion, which is far away from the fixing portion, is connected to one end of the antenna mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585936.6U CN211789492U (en) | 2020-04-17 | 2020-04-17 | Satellite antenna unfolding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585936.6U CN211789492U (en) | 2020-04-17 | 2020-04-17 | Satellite antenna unfolding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789492U true CN211789492U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020585936.6U Active CN211789492U (en) | 2020-04-17 | 2020-04-17 | Satellite antenna unfolding device |
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| Country | Link |
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| CN (1) | CN211789492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758358A (en) * | 2021-02-03 | 2021-05-07 | 哈尔滨工业大学（深圳） | Spring steel band unlocking device applied to satellite-borne yagi antenna unfolding mechanism |
-
2020
- 2020-04-17 CN CN202020585936.6U patent/CN211789492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758358A (en) * | 2021-02-03 | 2021-05-07 | 哈尔滨工业大学（深圳） | Spring steel band unlocking device applied to satellite-borne yagi antenna unfolding mechanism |
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