The invention discloses a locking and releasing device for a satellite-borne antenna, and belongs to the technical field of satellite-borne antennas. The device comprises an antenna support lug and aplatform deck of a satellite, and a threaded connection structure for connecting the antenna support lug and the platform deck, wherein the threaded connection structure comprises a screw rod, a nut made of memory alloy, a sleeve for supporting the screw rod and a spring; the nut is covered with a nut shell, and the nut shell is fixedly arranged on the platform deck; the sleeve is fixedly connected with the bottom of the antenna support lug; the screw rod penetrates through the bottom of the antenna support lug, the sleeve and the nut shell and is connected with the nut; a spring stop block isfurther fixedly arranged on the side wall of the screw, and the spring is arranged on the screw in a sleeving mode and located between the spring stop block and the bottom of the sleeve. Impact caused by an initiating explosive device locking and releasing device is reduced, and the device has the function of repeated locking and releasing in a ground test.
本发明公开了一种用于星载天线的锁紧释放装置,属于星载天线技术领域。该装置包括卫星的天线支耳和平台舱板以及连接天线支耳和平台舱板的螺纹连接结构,螺纹连接结构包括螺杆、材料为记忆合金的螺母、用来支撑螺杆的套筒以及弹簧;螺母外覆盖有螺母壳体,螺母壳体固设于平台舱板上;套筒与天线支耳的底部固定连接,螺杆穿过天线支耳的底部、套筒和螺母壳体并与螺母连接;螺杆的侧壁上还固设有弹簧挡块,弹簧套装在螺杆上并位于弹簧挡块与套筒底部之间。本发明减少了火工品锁紧释放装置带来的冲击,并且在地面测试中具有可以多次锁紧释放的功能。
Locking and releasing device for satellite-borne antenna
一种用于星载天线的锁紧释放装置
2020-10-02
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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