The door is larger, the rope is longer, and the lights are more!Out of the cabin 3.0 equipment upgrade

According to the China Manned Aerospace Engineering Office, at 18:26 on September 1, 2022, astronauts Chen Dong successfully opened the door of the cabin of the Tiangtian Experimental Countercat. At 19:09, astronauts Chen Dong and Liu Yang successfully came out of the cabin.

Ask the Tianjin experimental cabin to open the door.

This out -of -the cabin activity is the first time that my country's astronauts have asked the Tiangan Experimental Cels from the "Space New House". Compared with the previous outlets from the sky and the core cabin, what are the new changes in this outlet event?

The cabin door is larger, and the access is easier

When the Shenzhou 12 and Shenzhou 13th multiplication group came out, it was the outlet of the node of the core cabin of the space station. The diameter of the cabin door was 85 cm.

In this task, for the first time, the astronauts "went out" from the air gate of the Tiangan experimental compartment. The door of the cabin was developed by the Fifth Hospital Space Station structure and the institutional team. The diameter reached 1 meter. Under the circumstances, we can carry the equipment more calmly.

The seemingly simple geometric size increases is actually the balance between "Gang" and "soft". It is necessary to use the principle of leverage amplification to find the balance point. Under the condition of maintaining the unchanged operation of the astronauts, let the cabin door with a larger diameter be achieved. seal.

As a complex product in the spacecraft mechanism, the 1 -meter -diameter cabin door covers sealing, transmission, locking, guidance, lubrication, man -machine industrial efficiency and other disciplines, but the design team will implement complex functions into the product operation details in a simple way. The astronaut only needs to use the operation handle to unlock the operation handle on the door of the door. Use the helping agency to eliminate the residual pressure and drive the door handle to complete the opening door.

In addition, the cabin door is also equipped with a tailor -made cabinet door protection cover, and the cabin door leak detector is used as a seal detection method, and the cabin door pressure point switch is used as a state assistance judgment to ensure the safety of its use in all aspects.

According to the different needs of the rail, the development team is also equipped with a variety of different functions in the subsequent tasks such as Mengtian Experimental Cels.

Safety ropes are longer, and space strolls are more free

The spacemen perform the outlet mission and must have the "lifeline" connected to the space station.

When Shenzhou VII astronauts Zhai Zhigang completed the first space out of my country's space, he used a fixed length line, which was only more than 1 meter in length. However, in the construction task of space station, astronauts must complete the outlet tasks such as space station equipment installation and maintenance. The outlet range is larger, the operation difficulty is more difficult, the safety requirements are stricter, and the long -term and retractable safety rope institutions are required.

To this end, the development team has developed a new type of telescopic safety rope for the space station outlet mission. This kind of safety rope can ensure a safe connection between the astronauts and the space station compartment of more than 10 meters, and will not have the movement of hooking and interference in aerospace officers in space uniforms. Photos, space particles and other harsh environment tests. At the same time, considering the requirements of the effectiveness of human -machine workers, the product must also achieve constant force output to ensure that its collection power does not have an impact on the astronaut movement.

In response to the design needs of long -distance and space environmental adaptability, the innovation of the R & D team proposed a clever design solution to achieve the constant force of the wire rope. No motor provides rotation torque to avoid the introduction of cables. Convenience and mobility.

At the same time, the designer selects the special covering materials with spatially resistance to protect the steel wire rope to ensure the safety of the institution. In order to meet the requirements of long life use, they adopted the design scheme of the auxiliary ropes of the rope rope to guide the wire rope rope. Through a large number of test verification, more than 10 meters of long wire rope can be repeatedly wrapped tens of thousands of times in a narrow institution.

There are more lighting lights.

In this outlet mission, astronauts can carry out off -cabin operations in a clearer and brighter environment.

The space station plans the integrated, multi -level, and multi -dimensional lighting system with multi -freedom dynamic lighting and fixed lighting. The out -of -the -cabin lighting light of the launch of the launch of the experimental cabin has a full -coverage angle rotation function. Through multi -freedom rotation mechanism and the lighting lighting system design, the photos of the space staff's outlet and out -of -the -cabin operating points are fully guaranteed to be fully guaranteed , Become a "VIP Lighthouse" for walking outside the cabin.

In fact, in addition to out of the cabin, the care of the aerospace system of the instrument lighting system is also reflected in the time of space life.

Different from the earth, space does not change day and night, four seasons. Astronauts will go through about 14 days of sunset every day. The biological clocks in the body are easily disrupted, and they may cause a certain degree of sleep disorders, burnout and health damage and work efficiency.

而通过该系统，航天员进入空间站后，可以根据个人需求通过手机APP调节舱内照明环境，在睡眠、工作、运动等模式间切换，以避免长时间单调环境带来不适，保证高效工作、高Quality sleep.

Source: Science and Technology Daily/Reporter Fu Yifei

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