Two-stage spiral repeatable folding and unfolding locking mechanism of solar wing
A helical, sun-based technology, applied in the field of solar wing folding mechanism, can solve problems such as spacecraft attitude and orbital motion disturbance, solar wing flexible structure vibration, and reduce spacecraft orientation accuracy, so as to improve utilization efficiency and application range Wide, good bearing effect
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[0014] In order to reduce the space occupation between the base plates of the solar wing, the present invention adopts a double-stage spiral repeated folding and unlocking mechanism, which is suitable for multi-stage folding and unlocking of the solar wing. The power drives the action of the first-stage screw pair through the linkage wheel. The movement characteristics of this stage screw pair are: the screw rotates, the nut moves, and the first-stage screw pair has a self-locking function. The two ends of the screw rod have left-handed and right-handed threads, which are matched with left-handed and right-handed nuts respectively. The nut transmits the movement to the two-way thrust bearing to drive the second-stage helical pair to act. The movement characteristics of this stage are: the screw is fixed, the nut rotates and moves (double-motion nut), and there is no self-locking function. Both ends of the fixed screw rod have left-handed and right-handed threads, which are mat...
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