Unfolding and shaping mechanism for reflecting surface of inflatable unfolding type parabolic cylinder antenna

2014 
The invention relates to an unfolding and shaping mechanism for the reflecting surface of an inflatable unfolding type parabolic cylinder antenna, and belongs to the technical field of spaceborne antennae. The problem that due to a shaping device adopted for the reflecting surface of an existing inflatable unfolding type parabolic cylinder antenna, the overall weight of the antenna is large is solved. The unfolding and shaping mechanism comprises the flexible reflecting surface, carbon fiber side plates, inflatable unfolding and supporting arms, aramid fiber pull straps, carbon fiber connecting plates, air pipes and end covers. The left side and the right side of the flexible reflecting surface are respectively provided with one carbon fiber side plate; two rows of inflatable unfolding and supporting arms are arranged on each carbon fiber side plate in a staggered mode, the aramid fiber pull straps are further arranged on each carbon fiber side plate; the upper ends and the roots of the two corresponding aramid fiber pull straps on the two carbon fiber side plates are connected respectively through the two carbon fiber connecting plates; the front ends and the rear ends of the two carbon fiber side plates are respectively connected through one carbon fiber connecting plate; the two ends of each inflatable unfolding and supporting arm are fixedly connected with the corresponding carbon fiber connecting plate through the end covers. The unfolding and shaping mechanism is used for shaping the flexible reflecting surface.
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