Satellite-rocket unlocking device for separating stacked satellites from carrying

Abstract

The invention provides a satellite-rocket unlocking device for separating stacked satellites from carrying in the technical field of spaceflight satellites, and the satellite-rocket unlocking device comprises a satellite-rocket connecting ring, a swing rod and multiple satellite layers, and the multiple satellite layers are stacked on the satellite-rocket connecting ring; the satellite-rocket connecting ring is provided with a pin structure through a reserved pin hole, one end of the swing rod is hinged to the pin structure, and the other end of the swing rod is provided with an unlocking assembly. When the satellite layers are stacked in a pressed state, the swing rod is tightly attached to the side walls of the satellite layers, the multiple satellite layers are connected with the adapters through unlocking pieces to keep the compressed state, and a pressing base and the uppermost satellite layer are arranged in a pressed mode. And when the satellite layers are converted to be in a loose state for stacking, the unlocking pieces are disconnected with the adapters, the pressing base releases the pressing arrangement with the satellite layers, and the swing rod rotates around the axis of the pin structure in the direction away from the satellite stack. The overall centroid height of the satellite group is reduced, the circumferential utilization rate of the carrying fairing is increased, the unlocking risk of the stacked satellite layer is reduced, and the unlocking efficiency and the design reliability are improved.

Description

technical field [0001] The invention relates to the technical field of aerospace satellites, in particular to a satellite-rocket unlocking device for separating stacked satellites from carriers. Background technique [0002] In view of the limited coverage of the ground network and the vulnerability to the influence of the natural environment, satellite communication can effectively solve the Internet service problems of remote, scattered, sea, and air users. In recent years, the United States, Canada and other countries have successively proposed global low-orbit Internet constellation plans, setting off a technological upsurge in Internet satellite constellations. In order to enhance my country's competitiveness in this field and further consolidate and enhance its international influence in the future, my country's low-orbit satellite constellation construction work has also begun. The traditional satellite launch connection and separation design has the following disadv...

AI Technical Summary

Problems solved by technology

The traditional satellite launch connection and separation design has the following disadvantages: 1. Each satellite needs to design a separate connection and separation structure and pyrotechnics, which is complex and not conducive to mass production; constellation control

However, the above-mentioned patent has the following disadvantages: the patent designs a preloading device for the traditional strap-type star-rocket unlocking structure, which can ensure uniform and synchronous loading of the preloading force, but it is not suitable for stacked satellites with a structural configuration, and it is difficult to meet the requirements for multiple satellites. Special requirements for layer satellite compaction, unlocking and separation

However, the above-mentioned patents have the following disadvantages: the height of the center of mass of the satellite group as a whole cannot be reduced through the use of load-bearing bodies

This article designs a star-arrow spring separation device applicable to multiple satellites in one rocket, which can realize the adjustment of the satellite separation attitude by adjusting the spring stroke, but the above-mentioned technology has the following shortcomings: for the situation of a larger number of satellites, it is still unavoidable. The reliance on the central load-bearing structure leads to a relatively high height of the center of mass of the satellite group as a whole, which limits the upper limit of the number of satellites launched with one arrow and multiple satellites

[0006] Since the structure of stacked satellites is very different from that of traditional satellites, if the traditional satellite-rocket unlocking device is used, it will be difficult to meet the stable connection requirements during the launch phase and the unlocking and separation requirements during the on-orbit phase.

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