Wrapping tape locking and releasing device for expandable antenna

A technology of locking, releasing, and wrapping, which is applied in the direction of folding antennas, etc., can solve problems such as damage to antennas, large output impulse, and complex components, and achieve the effects of resistance to gravity deformation, high load-bearing capacity, and improved load-bearing capacity

CN104078740AActive Publication Date: 2014-10-01XIAN INSTITUE OF SPACE RADIO TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-10-01

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Abstract

The invention discloses a wrapping tape locking and releasing device for an expandable antenna. The wrapping tape locking and releasing device is applied to locking and releasing of the expandable antenna. The wrapping tape locking and releasing device comprises a root expanding joint, a pre-tightening device, a composite wrapping tape assembly and an initiating explosive device. The composite wrapping tape assembly comprises two composite wrapping tapes. The two ends of each composite wrapping tape are connected with the root expanding joint and the pre-tightening device respectively, so that the two wrapping tapes are connected together. The pre-tightening device is locked and released through a pin puller of the initiating explosive device so that the wrapping tapes can be locked and released. The wrapping tape locking and releasing device is simple in structure, easy and convenient to operate and high in reliability. The wrapping tape locking and releasing device can solve the problem that a traditional rope tape or steel tape type wrapping tape hooks a reflector, and can be popularized and applied to the field of locking and releasing of various expandable structures to achieve locking and releasing with the requirement for large pre-tightening force, thereby having broad application prospect.
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Description

technical field

[0001] The invention relates to a tape locking and releasing device for an expandable antenna, which belongs to the technical field of space expandable structures. Background technique

[0002] Tape locking and releasing technology is the key technology of the deployable antenna and the prerequisite for the successful deployment of the deployable antenna. Its reliability determines the success or failure of the deployable antenna.

[0003] The function of the tape is to lock the antenna in the folded state during the active section of transfer, environmental test and launch. After the satellite enters the orbit, the tape is unlocked and unfolded under the command, and the antenna is unfolded immediately. , whose functional requirements are as follows:

[0004] 1. The tape has sufficient pre-tightening force and strength to meet the requirements of passing the ground vibration test and transmitting the vibration load of the active section when the antenna is ...

Examples

Embodiment Construction

[0027] The strap locking and releasing device for deployable antennas according to the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, the strap locking and releasing device for deployable antennas according to the present invention includes four parts, namely, root deployment joint A, pretensioning device B, pyrotechnics C and composite strap assembly D. The composite tape assembly D includes two composite tapes, and the two ends of the two tapes are respectively connected to the root expansion joint A and the pretensioning device B, so as to connect the two tapes together. The pre-tightening device B is locked and released through the pin puller of the pyrotechnic product C, thereby realizing the locking and releasing functions of the strap.

[0029] According to the working principle of the strap locking and releasing device for deployable antenna of the present ...