Space electromagnetic docking mechanism based on mechanical locking and electromagnetic unlocking

Abstract

The invention discloses a space electromagnetic docking mechanism based on mechanical locking and electromagnetic unlocking, and relates to the technical field of spacecraft space on-orbit docking. The space electromagnetic docking mechanism comprises a server side and a target side, the server side and the target side realize flexible docking and controllable separation through shaft hole cooperation under the action of electromagnetic force, and the server side and the target side realize mechanical locking through a lock bead type locker; the space electromagnetic docking mechanism is a reusable weak impact docking mechanism, based on the interaction of electromagnetic coils, the functions of capturing, guiding, correcting and approaching and reliable unlocking and separation of the mechanism are achieved, reliable locking of the docking mechanism is achieved through a lock bead type locker, and therefore, the rapid actuation and reuse functions of the space electromagnetic docking mechanism are ensured.

Description

technical field [0001] The invention relates to the technical field of space on-orbit docking of spacecraft, in particular to a space electromagnetic docking mechanism based on mechanical locking and electromagnetic unlocking. Background technique [0002] Space rendezvous and docking is an indispensable operation during the on-orbit operation of manned spaceflight, cargo spacecraft and space station construction. At the same time, it is also a prerequisite for space operations such as on-orbit assembly, resupply and maintenance services. On-orbit rendezvous and docking of aircraft is a very complex and difficult aerospace technology, involving multi-disciplinary technical fields such as spacecraft on-orbit attitude control and application technology. [0003] With the development of the complexity, precision and multi-function of spacecraft, the traditional space rendezvous and docking mechanism performs rigid collision hard docking based on inertia at the end of the docki...

AI Technical Summary

Problems solved by technology

[0003] With the development of the complexity, precision and multi-function of spacecraft, the traditional space rendezvous and docking mechanism performs rigid collision hard docking based on inertia at the end of the docking process, and the large impact force generated has an impact on the safety of precision instruments and equipment

Traditional spacecraft rely on chemical fuel to provide kinetic energy to control the position and attitude of the docking process. Plume pollution can easily damage adjacent optical instruments and sensitive devices, and is limited by the propellant capacity, which is not conducive to repeated high-efficiency docking, energy saving and low pollution.

In addition, the traditional docking mechanism is relatively complicated, and it is difficult to realize the integrated design of docking, locking, unlocking, and separation. Repeated locking and unlocking requires an additional driving source, which makes it difficult to achieve lightweight and low power consumption, which is not conducive to long-life and high-reliability use. For example, patent CN201710581200.4 discloses a space docking mechanism positioning lock that can repeatedly realize locking / unlocking. It needs to drive the ball screw, slider, and gear mechanism to move forward and backward by the motor arranged in it to realize the locking and unlocking functions. The structure and operation are more complex

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