A single-point locking system for spaceborne movable antenna

Abstract

The invention provides a satellite-borne movable antenna single-point locking system. The satellite-borne movable antenna single-point locking system includes a locking releasing device, a first angle sheet, a second angle sheet, an X-axis support, a Y-axis support, an X-axis rotating unit, a fixing support and a Y-axis rotating unit. According to the satellite-borne movable antenna single-point locking system of the invention, a plurality of rotating components inside an antenna are connected in series and then are fixed in a single-point locking manner; after single-point locking is performed, only one locking point exists, corresponding initiating explosive devices can be decreased to one initiating explosive device; based on reasonable layout, the single-point locking can meet requirements for strength and stiffness; and therefore, the reliability of the unlocking of the antenna can be improved, an impact of the initiating explosive device on the antenna and the body of a satellite can be decreased, the envelope of the structure of the antenna is smaller, and the light weight and miniaturization of the antenna can be realized. The satellite-borne movable antenna single-point locking system has high applicability and popularization application value.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a single-point locking system for a space-borne movable antenna, which is especially suitable for antenna reflectors with a diameter not greater than 0.6m and large-scale rotation (both azimuth and pitch can reach ±110°). °), a spaceborne movable antenna with a fundamental frequency not higher than 60Hz. Background technique [0002] With the continuous development of aerospace technology and the continuous improvement of satellite resolution, the camera has become thicker, longer, and heavier. As a result, the spaceborne movable antenna must be lightweight and miniaturized to meet the envelope and weight requirements. [0003] The reliability of the spacecraft is particularly important, so each of its stand-alone equipment must have high reliability. The reliability of the spaceborne movable antenna mainly depends on whether its pyrotechnics are normally unlocked....

AI Technical Summary

Problems solved by technology

[0003] The reliability of the spacecraft is particularly important, so each of its stand-alone equipment must have high reliability. The reliability of the spaceborne movable antenna mainly depends on whether its pyrotechnics are normally unlocked. The reliability of the pyrotechnic unlocking directly determines whether the launch is successful or not. Failure, the more pyrotechnics, the greater the impact on the antenna and the spacecraft when unlocked at the same time. If one is not unlocked, the satellite launch will fail

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