On-orbit service fiLLing port opening mechanism

Abstract

The invention discLoses an on-orbit service fiLLing port opening mechanism. The mechanism is composed of a baffLe, a guiding rod, a sLeeve, a mounting front paneL, a mounting rear paneL, a spring sLeeve, a gLand, a U-shaped groove guiding pLate, a spring and a baffLe rotating shaft. The spring is mounted in the spring sLeeve, and the spring sLeeve, the mounting rear paneL, the sLeeve and the mounting front paneL are coaxiaLLy connected from bottom to top. The guiding rod penetrates through the baffLe, the mounting front paneL, the sLeeve and the mounting rear paneL from top to bottom, and theLower end of the guiding rod is coaxiaLLy opposite to the spring. When the guiding rod rotates downward under pressure, the spring is compressed to drive the baffLe to rotate to achieve the opening motion. When the pressure appLied to the guiding rod disappears, the spring pushes the guiding rod reverseLy to move upwards, and the baffLe is driven to rotate reverseLy to achieve the cLosing motion.The opening mechanism can open and cLose an on-orbit service fiLLing port without additionaLLy requiring a motor or puLLing a rope, the reLiabiLity is improved, and the probLem that jam is easiLy caused by means of a rope controL method is soLved.

Description

technical field [0001] The invention relates to a door-opening mechanism for an on-orbit service filling port required during on-orbit fuel filling in the field of aerospace technology. Background technique [0002] On-orbit fuel filling is one of the core technologies in the field of on-orbit service. It mainly refers to directly fueling the target spacecraft to extend the working life of the orbit and enhance the orbital maneuverability. Effective sealing of the filling interface is the basic condition for implementing fuel filling. However, factors such as the docking of two satellites and the impact of space debris may cause serious damage to the filling interface, resulting in the failure to achieve effective sealing. It can be seen that it is of great engineering significance to protect the filling interface through the protective baffle. The protective baffle is closed before filling, effectively protecting the filling interface; the protective baffle is open during...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to propose a door opening mechanism for the on-orbit service refueling port, so that the door opening mechanism can realize the opening and closing actions of the on-orbit service refueling port without the need for additional motors and ropes, effectively improving The reliability of the device not only solves the problem that the existing door opening mechanism adopts the rope control method, which is prone to jamming, but also solves the problem that the existing door opening mechanism is equipped with an additional motor to drive the traction rope, resulting in increased system complexity and reduced reliability.

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