Tensional cable assembly applied to flexible pressing and releasing device of spacecraft

Abstract

The invention provides a tensional cable assembly applied to a flexible pressing and releasing device of a spacecraft. The tensional cable assembly comprises a rope, block pins clamped to the two ends of the rope, a movable end, a fixed end and fasteners, wherein the movable end and the fixed end are arranged at the two ends of the rope correspondingly, and the two block pins at the two ends of the rope are arranged in the movable end and the fixed end correspondingly; the fasteners are arranged in the movable end and the fixed end correspondingly. Compared with the prior art, the tensional cable assembly has the beneficial effects that 1, the high-strength fiber rope can be effectively fixed to the movable end and the fixed end; 2, under the condition of long-time stress, the rope cannot be dragged out from the fixed end and the movable end; 3, external connectors are simple, and assembling is convenient.

Description

technical field [0001] The invention relates to a tension cable assembly in a compression release device, which is used in a spacecraft to compress the parts that need to be deployed after entering orbit on the surface of the spacecraft during the launch stage, so that the spacecraft can meet the requirements of the rocket fairing during the launch stage. The envelope condition of , especially a tension cable assembly used in a flexible compression release device in a spacecraft. Background technique [0002] At present, the compression rod / pyrotechnic cutter type compression release mechanism commonly used in China, its working principle is to directly use the thrust generated by the explosion of the pyrotechnic device to push the cutting knife in the cutter, so that it can compress at high speed. Rod cut off. This type of compression and release mechanism has the following limitations: the instantaneous large-scale shock load generated will affect the attitude of the sate...

AI Technical Summary

Problems solved by technology

This type of compression and release mechanism has the following limitations: the instantaneous large-scale shock load generated will affect the attitude of the satellite and the sensitive unit, and the corrosive and polluting gas will be generated during the ignition of the pyrotechnic device, which directly uses the explosion of explosives to produce There are certain potential safety hazards in the energy. The pyrotechnic device is a dangerous product, which brings inconvenience to ground storage and use. The cost of the ground test increases due to the non-reusable characteristics of the pyrotechnic device and the compression rod.

[0004] The traditional tension cable assembly adopts the method of rope knotting and fixing, but this fixing method is not easy to assemble, and at the same time, the knotted part is prone to creep for a long time under the condition of force, which makes the tension cable longer and the pressing force lower

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