Satellite-borne fixed surface deployable antenna and gravity unloading test device thereof

The invention belongs to the technical field of satellite-borne deployable antennas, and particularly relates to a satellite-borne fixed-surface deployable antenna and a gravity unloading test device thereof. According to the technical scheme, the satellite-borne fixed-surface deployable antenna comprises a solid reflecting surface, a torsional spring driving assembly, a winding system and a rope, the solid reflecting surface is fixed to the winding system, the torsional spring driving assembly is arranged in the middle of the solid reflecting surface, the rope is connected with the solid reflecting surface and the winding system, and the rope is connected with the solid reflecting surface and the winding system. And the solid reflecting surface realizes unfolding and folding actions through the torsion spring driving assembly and the rope hybrid driving of the winding system control rope. The satellite-borne fixed-surface deployable antenna and the gravity unloading test device thereof provided by the invent