Three-level fault-tolerant butt joint mechanism capable of resisting on-orbit impact

Abstract

The invention discloses an on-orbit impact resistant three-stage fault-tolerant butt joint mechanism and realizes first-stage fault tolerance between a driving end and a driven end through matching ofa gripper grabbing end mounted at the driving end and a butt joint groove which is circumferentially designed at the driven end and matched with the grabbing end in shape. A guide rod installed on anend face of the driving end and a slot designed in an end face of the driven end are matched and connected in an inserted mode, secondary fault tolerance between the driving end and the driven end isachieved, three-stage fault-tolerant stage on-orbit impact resistance between the driving end and the driven end is achieved through matched insertion connection of tooth-shaped butt joint blocks installed at the driving end and the driven end in the circumferential direction. The mechanism is advantaged in that a guiding problem of correct plugging of an electric connector is solved through first two stages, through third-stage fault tolerance, an electric connector is not stressed after being plugged.

Description

technical field [0001] The invention belongs to the field of space station cargo transportation, and specifically relates to a three-level fault-tolerant docking mechanism that resists on-orbit impact. Background technique [0002] With the development of my country's aerospace technology, the establishment and development of the space station is an important integration and embodiment of space technology. In the future, during the orbital flight of my country's space station, it will need the supply of space cargo resources, and it will need to transport ground materials to the space station to realize the docking of space cargo on the space station. [0003] The space cargo will be transported by the cargo spacecraft to the predetermined area of ​​the space, and the pallet system will be pulled out and transferred to the space station by the operation of the space station's mechanical arm, and it will be docked, docked, unlocked and separated from the space station cabin. ...

AI Technical Summary

Problems solved by technology

In the current technology, the guide mechanism is usually used to bear the external load borne by the docking mechanism assembly. When the external load is too large, the guide mechanism will be deformed, and in severe cases, it will be damaged and the electrical connection will be damaged under load, even if the electrical connector is not damaged. , during the separation process and the next docking process, the electrical connector cannot be reliably separated or mated again

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