A repeatable connection and separation device and a fastening and separation device for modular spacecraft

Abstract

The invention discloses a repeatable connecting and separating device. The repeatable connecting and separating device comprises a shell, a motor, a driving part, a locking hook, a guide part and pinshafts, wherein the motor is installed on the shell, the locking hook, the driving part and the shell sleeve the guide part in sequence, after the pin shafts are fixedly connected with the locking hook, the two ends of the pin shafts protrude on the surface of the locking hook, one ends of the pin shafts are clamped into first curve grooves of the guide part, and the other ends of the pin shafts are clamped into second curve grooves of the driving parts; the shell is fixedly connected with the guide part; the motor drives the driving part to rotate horizontally, the driving part horizontally rotates to make the pin shafts relatively move in the second curve grooves of the driving part, and meanwhile, the relative motion of the pin shafts is limited by the first curve grooves of the guide part; the pin shafts drive the locking hook to stretch out of or draw back from the shell; the locking hook is used for locking or unlocking an outer connecting and separating device. A fastening separating device of a modularized spacecraft comprises a compressing releasing device and the repeatable connecting and separating device.

Description

technical field [0001] The invention relates to a repeatable connection and separation device and a fastening and separation device for a modular spacecraft, belonging to the field of aerospace. Background technique [0002] The on-orbit maintenance of spacecraft based on the modular design concept is one of the development trends of spacecraft in the future. Realizing on-orbit maintenance has far-reaching significance for reducing or cleaning up space junk, saving costs, reusing resources, upgrading and extending the life of spacecraft systems, and space attack and defense. At the same time, using warehoused modular spacecraft to realize rapid integration and rapid testing of military tactical spacecraft has become the core technology for rapid response of spacecraft. The mechanical connection between the payload and the spacecraft plays an important role in the modular design of the spacecraft. [0003] The pyrotechnic device is the earliest and most widely used release ...

AI Technical Summary

Problems solved by technology

[0003] The pyrotechnic device is the earliest and most widely used release device on spacecraft. It has the advantages of small size, light weight, and mature technology; however, the pyrotechnic device cannot be reused and cannot meet the requirements for on-orbit replacement of payloads. The explosion process produces a large impact and is accompanied by harmful gas, which seriously affects the normal operation of the payload inside the spacecraft

[0004] In the existing spacecraft design, the repeatable connection mechanism mainly adopts the rod-cone docking mechanism, which has a large tolerance and strong bearing capacity; however, the rod-cone docking mechanism has a large size, interchangeability, and Poor expandability, unable to meet the on-orbit connection and replacement needs of a large number of modular payloads

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