A Space Tether Release Mechanism Using Shrapnel Damping

Abstract

The invention relates to a spatial tether releasing mechanism using elastic damping, which relates to the field of tether satellite design. The mechanism comprises a central shaft, a retaining ring, adeep groove ball bearing, a roller, a tether, a bracket, a steel ball, a base and shrapnel. The bracket is fixedly installed on the upper surface of the base. The central shaft is horizontally fixedand installed at the middle position of the bracket. The roller sleeve is arranged on the outer wall of the axial middle of the central shaft; a deep groove ball bearing is arranged between the rollerand the central shaft. The retaining ring is fixedly installed at both axial ends of the deep groove ball bearing. The tether is wound around the circumferential outer wall of the roller in the circumferential direction. The steel ball is arranged at the axial side wall of the bottom end of the roller. The elastic fragments are horizontally fixed and installed on the top end of the base; and theelastic piece is arranged between the axial side wall of the roller and the top end of the base. The invention solves the problem of tether fracture caused by tension impact after the tether is deployed in place and the problem of larger impact load to the main aircraft, and has the advantages of reliable release, effective damping, simple structure, wide adaptability, and the like.

Description

technical field [0001] The invention relates to the design field of a tethered satellite, in particular to a space tether release mechanism using shrapnel damping. Background technique [0002] As a new type of space vehicle, the tethered satellite can meet the requirements of the diversity of space missions in the future. Once proposed, it has attracted extensive attention and interest from researchers from all over the world. The tethered satellite system refers to connecting the satellite with other main aircraft (such as rocket final stage, space station, and large satellite) through tethers, which can be used in artificial gravity generation, rocket final stage monitoring, spacecraft orbit transfer, space debris cleaning, and space environment. It plays an important role in a series of space missions such as monitoring. [0003] The tether used to connect the tethered satellite to the main aircraft is a key component in the tethered satellite system, and a special teth...

AI Technical Summary

Problems solved by technology

Chu Zhongyi of Beijing University of Aeronautics and Astronautics proposed a tether deployment, recovery and tension control device for space satellite systems (authorization number: CN 108415449A). The tether is wound on the friction wheel. Compress the friction plate, so as to buffer and damp the friction force generated by the friction wheel. This method has a complex system and poor adaptability to the launch mechanics environment

Images