JP3642498B2 - Space structure holding and releasing device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a space structure holding and releasing device used to releasably hold space structures such as artificial satellites.
[0002]
[Prior art]
In the field of space development, as a means of launching space structures such as artificial satellites into outer space, a plurality of space structures are mutually connected and transported to outer space at the same time, It is considered to reduce transportation by separating each other. Such a space structure is coupled on the ground using a holding and releasing device so as to hold a heavy load at the time of launch and transported to outer space, and the holding is released and separated and operated independently.
[0003]
By the way, as a conventional holding and releasing device, a deployment structure such as a deployment antenna is connected to a satellite structure in a folded state by using a holding and releasing mechanism unit to hold a large load at the time of launch, and is well known in space. There is known a system in which a pyrotechnic product such as a separation bolt is remotely controlled to explode so that its holding and releasing mechanism is controlled to be released so that the deployable structure can be deployed.
[0004]
However, in the above-described holding and releasing device, when it is applied to holding and releasing space structures separated in outer space, the holding and releasing mechanism portion exists at the holding and releasing portion because of the configuration for holding and releasing the deployment structure. In addition, after the separation of the space structure, there is a problem that the holding / releasing mechanism part has an adverse effect such as hindering the subsequent operation.
[0005]
For example, when applied to holding and releasing satellites as a space structure, there is a possibility that problems such as the holding and releasing mechanism part disturbing when performing rendezvous docking in outer space after separation. .
[0006]
In addition, in the conventional holding and releasing device, the released holding and releasing mechanism section must be arranged so as not to interfere with other mounted parts such as the deploying structure or to interfere with the operation of the deploying structure. In addition, there is a problem that the production including the design is troublesome.
[0007]
[Problems to be solved by the invention]
As described above, the conventional holding / releasing device has a problem that the holding / releasing mechanism portion after being released exists in the holding / releasing portion and interferes with the unfolded structure and other mounted parts.
[0008]
The present invention has been made in view of the above circumstances, and is capable of realizing a reliable holding and releasing operation with a simple structure and holding and releasing a space structure that can reliably prevent interference after releasing. An object is to provide an apparatus.
[0009]
[Means for Solving the Problems]
According to the present invention, three truss support members forming a triangular pyramid whose one end is rotatably supported with respect to the first space structure, and the first space structure are integrally transported to the space. A second space structure provided with a coupling portion fitted to the other end portion of the support member, and the other end portion of the support member is urged to rotate, The urging means for folding and accommodating the first space structure, and the other end of the support member coupled to the coupling portion of the second space structure, A holding means for integrally connecting the first and second space structures by holding with a separation nut and a bolt against the urging force of the urging means, and holding the holding means in a pyrotechnic operation and released by accommodating folding the supporting member to turn biased by the bias means on said first space structure It is obtained by a holding release device cosmic structure and a holding release means that.
[0010]
[Action]
According to the above configuration, the first and second space structures are held against the urging force of the urging means by the holding means in a state of being fitted via the other end of the support member, When the holding and releasing means is operated to release the holding means, the coupling is released. At the same time, the support member is rotated by the urging force of the urging means, separated from the second space structure side, and folded and accommodated on the first space structure. As a result, the holding and releasing part is not projected on the first space structure in the holding and releasing state, so that the holding and releasing part may interfere with other mounted parts during operation of the structure. Therefore, the degree of freedom in design can be improved.
[0011]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a space structure holding and releasing device according to an embodiment of the present invention. Reference numerals 10 and 11 denote first and second space structures, for example, space navigation bodies such as artificial satellites, and a holding and releasing mechanism. 20 is separably held and coupled through the space 20 and transported to outer space.
[0012]
FIGS. 2 and 3 show the holding and releasing mechanism 20. The first space structure has a set of one end portions of the first to third support members 21a to 21c in a substantially triangular shape. It arrange | positions and is rotatably supported via bearing 22a, 22b (refer FIG.4 and FIG.5). The spring members 23a and 23b are engaged with the first to third support members 21a to 21c so as to apply a biasing force counterclockwise in FIG.
[0013]
The first support member 21a is provided with a coupling portion 24a at the other end, and the coupling portion 24a is provided with, for example, a hollow frustoconical fitting protrusion 25a. The other ends of the other second and third support members 21b and 21c are connected via the coupling portion 24b. For example, a hollow frustoconical fitting projection 25b is formed in the coupling portion 24b corresponding to the fitting projection 25a of the first support member 21a.
[0014]
Further, the first space structure 10 is provided with a buffer member 26 corresponding to the folding housing positions of the first to third support members 21a to 21c. The buffer member 26 comes into contact with the first to third support members 21a to 21c when the first to third support members 21a to 21c are rotated and biased by the spring members 23a and 23b to a predetermined position. The support members 21a to 21c are restricted to the folding position.
[0015]
On the other hand, the second space structure 11 is provided with a coupling portion 11a, and the coupling portion 11a is provided with a fitting hole 11b corresponding to the fitting protrusions 25a and 25b. In the second space structure 11, the fitting protrusions 25a and 25b of the coupling portions 24a and 24b of the first to third support members 21a to 21c are formed in the fitting holes 11b of the spring members 23a and 23b. A pyrotechnic 27, which is fitted against the urging force and is composed of a well-known separation bolt and separation nut, is inserted and coupled to the truss structure.
[0016]
In the pyrotechnic 27, for example, a separation bolt is inserted on the coupling portion side of the first space structure 10, and a bolt catcher is attached to the separation bolt. A separation nut coupled to the separation bolt is attached to the coupling portion side of the second space structure 11, and a power cartridge is attached to the separation nut. When the operation of the power cartridge is remotely controlled, the separation nut explodes to release the coupling with the separation bolt and release the mutual holding.
[0017]
In the above configuration, the first space structure 10 has its first to third support members 21a to 21c rotated clockwise against the urging force of the spring members 23a and 23b, and the fitting protrusion The portions 25a and 25b are fitted to each other and are fitted into the fitting holes 11b of the coupling portion 11a of the second space structure 11. A pyrotechnic 27 is attached and fastened between the coupling portions 24a, 24b, and 11a. Here, the first and second space structures 10 and 11 are coupled and held to the truss structure via the first to third support members 21a and 21c.
[0018]
In the holding state of the first and second space structures 10 and 11, when releasing the holding connection, the pyrotechnic 27 is first controlled to explode, and the first to third support members 21a are controlled. The coupling portions 24a and 24b of ˜21c are released from the coupling portion 11a of the second space structure 11, and the holding coupling is released. Then, the first to third support members 21a to 21c are rotated by the urging force of the spring members 23a and 23b, and the coupling portions 24a and 24b are separated from the coupling portion 11a of the second space structure 11, respectively. Is done. Here, the first to third support members 21a to 21c are connected to the spring members 23a. It is further rotated by 23b until it comes into contact with the buffer member 26, and is folded and accommodated on the first space structure 10. At this time, the first to third support members 21a to 21c are absorbed by the shock absorbing member 26 by the shock absorbing member 26.
[0019]
As described above, the space structure holding and releasing device is provided with the first space structure 10 so that one end portions of the first to third support members 21a to 21c are rotatably provided, and the second space structure 11 is provided. Is releasably held through the first to third support members 21a to 21c, and the second space structure is rotated by rotating the first to third support members 21a to 21c in a state in which the holding is released. It is configured to be separated from the body 11 and folded and accommodated on the first space structure 10. According to this, since the portion for holding and releasing is not projected on the first space structure 10 in the holding and releasing state, the rendezvous docking is performed again after separation from the second space structure, for example. In such a case, the holding and releasing part does not interfere with other mounted parts, so that the degree of design freedom is improved.
[0020]
In the above-described embodiment, the case where the truss structure is configured using the first to third support members 21a to 21c as the holding structure has been described. However, the holding structure is not limited to this and can be configured. is there.
[0021]
In the above-described embodiment, the case where the first and second space structures 10 and 11 are separated after being released has been described. However, the present invention is not limited to this. The space structure can be configured to be held and released from the spacecraft, and substantially the same effect is expected.
[0022]
Furthermore, in the said Example, although the case where it comprised so that holding | maintenance release was performed using the pyrotechnics 27 was demonstrated, it is not restricted to this but can comprise.
Therefore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
[0023]
【The invention's effect】
As described above in detail, according to the present invention, the structure structure can be easily held and released, and a space structure holding and releasing device that can surely prevent interference after releasing can be realized. Can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a space structure holding and releasing device according to an embodiment of the present invention;
FIG. 2 is a diagram showing a holding state of FIG.
FIG. 3 is a view showing a holding state of FIG. 1;
4 is a diagram showing a part of FIG. 1 in detail.
FIG. 5 is a diagram showing a part of FIG. 1 in detail.
[Explanation of symbols]
10: First space structure.
11 ... Second space structure.
20: Holding release mechanism.
21a to 21c: first to third support members.
22a, 22b ... bearings.
23a, 23b ... spring members.
24a, 24b, 11a...
25a, 25b ... fitting protrusions.
11b: fitting hole.
26: Buffer member.
27 ... Pyrotechnics.

Claims (2)

Three truss support members forming a triangular pyramid with one end rotatably supported with respect to the first space structure;
A second space structure that is transported integrally with the first space structure and is provided with a coupling portion that is fitted to the other end of the support member;
A biasing means for pivotally biasing the other end of the support member and folding and accommodating the first space structure;
In a state where the other end portion of the support member is coupled to the coupling portion of the second space structure, the separation member and the separation portion are separated from the supporting member and the coupling portion against the biasing force of the biasing means. Holding means for holding the first and second space structures integrally by holding them with bolts ;
Holding and releasing means for releasing the holding of the holding means by a pyrotechnic operation, and turning and biasing the support member via the biasing means to fold and store the support member on the first space structure. Space structure holding and releasing device characterized by that.   A buffer member for locking the support member in a state in which the support member is rotated via the biasing means and the second space structure is separated from the first space structure; The space structure holding / releasing device according to claim 1, wherein:

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