The invention belongs to the technical field of space unfolding mechanisms, and particularly relates to a solar sail unfolding mechanism based on traction mode control, which comprises a double-sail-truss hub mounting frame, a double-sail hub mounting frame, a stepping motor, a central transmission shaft, a steel belt wheel, a steel belt, a sail truss hub wound with a sail truss, a positioning assembly, a double-sail hub wound with a solar sail film and the like. The two sail truss hubs are simultaneously driven by the central transmission shaft through the steel belt wheels and the steel belts to rotate at a constant speed, so that the two groups of sail trusses on each sail truss hub stably extend out respectively. According to the solar sail unfolding mechanism, the outer side of the solar sail film is connected with the sail truss support at the outermost end of the sail truss, the solar sail film is synchronously unfolded while the sail truss is unfolded, the synchronization capacity of the solar sail unfolding mechanism is enhanced, and the solar sail film can be reliably unfolded and tensioned while the solar sail film and the sail truss are synchronously unfolded through the arrangement of the coil spring wire shaft and the pull wire.
本发明属于空间展开机构技术领域,具体地说是一种基于牵引方式控制的太阳帆展开机构,包括双帆桁轮毂安装框架、双帆轮毂安装架、步进电机、中央传动轴、钢带轮、钢带、卷设有帆桁的帆桁轮毂、定位组件、卷设有太阳帆薄膜的双帆轮毂等。本发明由一个中央传动轴通过钢带轮及钢带同时带动两个帆桁轮毂匀速地转动,使每个帆桁轮毂上的两组帆桁分别稳定伸出。将太阳帆薄膜的外侧与帆桁最外端的帆桁支架进行连接,在展开帆桁的同时同步展开太阳帆薄膜,增强了太阳帆展开机构的同步能力,且通过卷簧线轴及牵引线的设置,可使得太阳帆薄膜在与帆桁同步展开的同时能够可靠地张开张紧。
Solar sail unfolding mechanism based on traction mode control
一种基于牵引方式控制的太阳帆展开机构
2023-10-03
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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