Automatic opening and closing cabin door of extraterrestrial celestial body sampling return cabin

Abstract

The invention discloses an automatic opening and closing cabin door of an extraterrestrial celestial body sampling return cabin. The automatic opening and closing cabin door comprises a metal cabin door, a cabin door heat protection structure, a pressing release device, a locking device, a transmission device, a driving device and a separation nut, the locking device and the separation nut are fixedly installed on the inner side of the metal cabin door, and the locking device is used for locking the metal cabin door in a closed state to the door frame. The transmission device is fixedly mounted on the door frame, is in transmission connection with the driving device, comprises a cabin door shaft fixedly connected with the metal cabin door, and is used for converting rotary motion providedby the driving device into linear translation motion and rotary motion of the metal cabin door so as to realize opening and closing actions of the metal cabin door; the pressing and releasing device is fixedly installed on the return cabin and matched with the separation nut to press, fix, unlock and release the metal cabin door in the open state. The automatic opening and closing cabin door has the advantages of small motion enveloping space and small influence of environmental factors.

Description

technical field [0001] The invention relates to the technical field of spacecraft, in particular to an automatic opening and closing hatch of an extraterrestrial celestial body sampling return cabin. Background technique [0002] After sampling planetary samples, the deep space exploration spacecraft needs to transfer the collected samples into the return capsule, and the return capsule returns to Earth with the samples. Therefore, the return cabin needs to be equipped with a switch hatch, which is opened before the sample is transferred into the return cabin and closed after the sample enters the return cabin, so as to protect the collected samples and ensure the integrity and continuity of the aerodynamic shape of the return cabin. [0003] The hatch mechanism of a variety of sampling return spacecraft adopts a flip-type opening and closing method. Although the opening angle is large, the motion envelope space is also large. Use in limited circumstances. Contents of the...

AI Technical Summary

Problems solved by technology

[0003] The hatch mechanism of a variety of sampling return spacecraft adopts a flip-type opening and closing method. Although the opening angle is large, the motion envelope space is also large. Use in limited circumstances

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