Force-limited compaction releasing mechanism

Abstract

The invention discloses a force-limited compaction releasing mechanism capable of segmentally compacting a large-scale flexible solar wing solar blanket, thus satisfying the demands that the solar blanket inner side and solar blanket board are inconsistent in compacting force; the force-limited compaction releasing mechanism comprises a compact assembly and a pedestal assembly; the compact assembly comprises a compact bar, a locking nut, a separating spring, a spring sheath, an anti-escape cap and a compact bar mount; the pedestal assembly comprises a fire work separation nut, a positioning guide rod, a force-limited screw rod, an locknut and a separating nut mount; when the solar blanket is compacted, the compact bar and the fire work separation nut are connected, and the locknut can load the compact force, thus realizing up-down board connection and applying compact load; when the solar blanket inner compact load reaches a required value, the force-limited screw rod can limit the compact force from further transmitting to the solar blanket; the locknut continuously loads, and second level loading compact force is transmitted to the force-limited screw rod, thus realizing high pretightening force load demands between the up-down boards of the solar blanket.

Description

technical field [0001] The invention relates to the technical field of deployment mechanisms, in particular to a force-limited compression release mechanism. Background technique [0002] At present, the compression and release mechanism of the domestic spacecraft deployment mechanism mostly adopts the compression rod type compression and release form, which is similar to the screw tightening and fixing objects. Control, and the compression force inside the compacted object is determined by the structural characteristics of the compacted object itself. When compressing the solar blanket of a large flexible solar wing, since the solar blanket is equipped with fragile solar cells and glass cover sheets, the compression release mechanism of the pressing rod type cannot ensure the internal compression of the solar blanket. It is easy to cause damage to the internal parts of the sun blanket. At the same time, it is also necessary to ensure a high level of compression between th...

AI Technical Summary

Problems solved by technology

When compressing the solar blanket of a large flexible solar wing, since the solar blanket is equipped with fragile solar cells and glass cover sheets, the compression release mechanism of the pressing rod type cannot ensure the internal compression of the solar blanket. It is easy to cause damage to the internal parts of the sun blanket

At the same time, it is also necessary to ensure a high level of compression between the outer box panels of the solar blanket, so as to prevent the box panels of the solar blanket from loosening under the vibration and impact during launch, and lose the support and protection of the solar blanket.

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