Rotation starting separation mechanism

Abstract

The invention discloses a rotation starting separation mechanism which comprises a shell, a rotary drum, spiral sliding grooves, a roller assembly, a cable drum, a bearing, a rotation starting spring and a pressing assembly. The cable drum is fixed in the shell and is sleeved outside an electric connector on a main detector; at the beginning, a rotation starting load is connected with the electric connector in an inserted mode. The rotary drum is a double-layer sleeve, the inner layer is located outside the cable drum, and the outer layer is located in the shell; the three spiral sliding grooves are evenly fixed to the outer surface of the outer layer of the rotary drum in the circumferential direction, and the roller assembly is fixed to the upper end of the shell and is in rolling fit with the spiral sliding grooves. The shell and the rotation starting load are locked or unlocked through a pressing assembly, and when the rotation starting load and the shell are locked, the rotation starting load limits the upward movement of the rotary drum; the bearing is coaxially fixed on the outer surface of the inner layer of the rotary drum, the rotation starting spring is pressed between the bearing and the inner bottom surface of the shell, when the rotation starting load and the shell are unlocked, the rotation starting spring releases elastic potential energy, and the bearing converts the translation of the rotation starting spring in the axial direction of the cable drum into the spiral motion of the rotary drum.

Description

technical field [0001] The invention relates to the technical field of spacecraft mechanisms, in particular to a spinning separation mechanism. Background technique [0002] With the development of my country's aerospace technology, the implementation of deep space exploration missions is an important integration and embodiment of space technology. During the implementation of future deep space exploration missions, it is necessary to sample the surface of the target star and return it to Earth to realize the exploration of deep space resources. [0003] After the extraterrestrial object probe has successfully sampled, it will return to the earth's atmosphere according to the mission plan, and the probe will unlock and separate the sampling return capsule in a preset attitude. Whether the unlocking and separation can be successfully completed, and the successful return to the atmosphere at a preset attitude will directly determine the success or failure of the sampling retu...

AI Technical Summary

Problems solved by technology

In the prior art, the ways to achieve spin-up include spiral chute spin-up, motor spin-up and small rocket spin-up. However, due to the strict weight index of the sampling return capsule for deep space exploration missions and the compact layout space, the existing domestic atmospheric reentry spin-up techniques used in return missions, none applicable

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