Damping-adjustable hinge, cabin door structure and spacecraft

Abstract

The invention discloses a damping-adjustable hinge, a cabin door structure and a spacecraft. The damping-adjustable hinge comprises a first hinge support, a second hinge support, a sleeve and a pre-tightening device which are made of a first metal material, the first hinge support and the second hinge support are rotatably connected through a rotating shaft, and a first anti-abrasion structure isarranged between the first hinge support and the second hinge support; the sleeve sleeves the rotating shaft and is relatively and fixedly matched with the first hinge support, the sleeve is rotatablymatched with the second hinge support, and a second anti-abrasion structure is arranged between the sleeve and the second hinge support; and the pre-tightening device is arranged on the rotating shaft and tightly presses the sleeve on the second hinge support, and the anti-abrasion structure is made of a second metal material. The whole damping-adjustable hinge is integrally made of metal materials, it can be guaranteed that the whole hinge has good strength and durability so as to adapt to severe environments such as outer space, abrasion during opening and closing is reduced, the service life is prolonged, and the damping of the hinge can be adjusted through the pre-tightening device.

Description

Technical field[0001]The invention relates to the technical field of hinges, in particular to a damping adjustable hinge, a door structure and a spacecraft.Background technique[0002]Damping hinge refers to a hinge that can provide damping force when opening or closing. As astronauts need to repair the internal devices of the spacecraft, when opening the spacecraft door, the spacecraft door needs to be fixed at any position. The existing part of the damping Hinges are easily damaged due to large temperature differences in space, and have poor strength and durability. Some damping hinges contain oil and other liquids that are easy to evaporate in space, such as hydraulic hinges, which cannot be used in space; and some damping hinges Due to the damping problem that it is easy to wear when opening and closing, it cannot be used for many times for a long time.Summary of the invention[0003]In view of this, the first object of the present invention is to provide a damping adjustable hinge ...

AI Technical Summary

Problems solved by technology

[0002] Damping hinges refer to hinges that can provide damping force when opening or closing. Since astronauts need to maintain the internal devices of the spacecraft, when opening the spacecraft door, the spacecraft door needs to be fixed at any position. The existing part of the damping Hinges are easily damaged due to large temperature differences in space, and their strength and durability are poor; there are also liquids such as oil that are easy to volatilize in space in some damping hinges, such as oil pressure hinges, which cannot be used in space; there are also some damping hinges Due to the existence of damping, it is easy to wear when opening and closing, so it cannot be used multiple times for a long time

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