The air gate, small robotic arm, flexible solar wing -analyzes the "unique artifact" of the test compartment

Xinhua News Agency, Hainan Wenchang, July 24th. Question: air gates, small robotic arms, flexible solar wings -Analysis of the "unique artifact" of the test compartment

Xinhua News Agency reporters Li Guoli, Zhao Ye Ping, Zhang Ruijie

On July 24th, the Long March 5 Yao Three Launar Rockets equipped with the Wentian Experimental Class was launched at the Wenchang Aerospace launcher in my country. Xinhua News Agency reporter Li Gang by Li Gang

On the afternoon of July 24th, with the Long March 5 Yayao Three Lauret Rockets rushed to the clouds, the first experimental cabin in the construction stage of my country's space station was also the heaviest spacecraft launched in my country to date -about 23 tons of the questioning compartment launched. Lift off.

The total length of the experimental compartment body is 17.9 meters and 4.2 meters in diameter, which is more "strong" and more "strong" than the sky and the core compartment; it also has three "unique artifacts": the outlet area dedicated to the astronauts -air gates cabin; The more aggressive and fine robotic arms are operated; the flexible solar wings can be collected for the entire space station.

Airbud cars: Special out of the space staff

After the task of the space station is turned on, my country's astronauts have carried out many out -of -class activities. The outlets on the core compartment of the sky and the core compartment are called "node compartment". There are many internal equipment, pipelines and cables. After asking the Tianjin Experimental Cryle, the spacemen will have a dedicated outlet area -the air gate in the future.

According to Zhang Hao, the overall chief director of the System of the Fifth Hospital of Aerospace Science and Technology Group, the air gate is a cabin of an internal circle and an external side, which has the characteristics of larger capacity, wider cabin door, and cleansing in the cabin. In the future, the air gate will become the main outlet passage of the entire space station system.

The space officer's outlet activity space in the node compartment is about seven or eight cubic meters, and the air gate can reach 123 cubic meters. The air gate cabin is more neat than the node compartment. There are no bonds of other pipeline cables; the diameter of the cabin door is 1 meter, 15 cm larger than the diameter of the node compartment door.

"The astronauts can be stretched, more calm, and can carry large heads to work out of the cabin, and the capability of the cabin is greatly improved." Zhang Hao said.

There are 22 standard load interfaces in the test cabin. In the next ten years, the scientific experimental load equipped at the space station can accurately "send" the corresponding standard load interface position through the robotic arm.

Small robotic arm: "short and small", you can complete the outside of the cabin independently

Like the sky and the core cabin, the questioning compartment of the sky is also equipped with a robotic arm. Compared with the large robotic arm with a length of 10 meters and a maximum of 25 tons of the core compartment, the mechanical arm of the Tiantian experimental cabin should be more "short and concise".

Zhang Hao introduced that the arm of the big robotic arm is long enough, the scope of the transfer is larger, and the operating radius is nearly 10 meters; the strength is large enough, it is a "strong man" that can grasp and transfer a complete spacecraft.

In contrast, the length of the small robotic arm of the Tiantian experimental cabin is about 5 meters and the carrying capacity is 3 tons. However, the design purpose of this "small hand" is to grasp small and medium -sized equipment to perform more refined operations.

For example, it can independently complete the installation and replacement of the load of the cabin without the need for spacers to leave the cabin, which can effectively save the workload of astronauts on the orbit.

The large and small robotic arm can also be used in combination to form a combined arm of about 15 meters to carry out more off -cabin operations. "We can regard the two hands of the size of the robotic arm to each other to hand over things and use it in cooperation; we can also hold the two arms together to form a longer robotic arm, which can cover some operations and crawling on the surface of the entire space station. Demand. "Zhang Hao said.

Flexible solar wings: the longest and largest in China

The solar wing carried by the Tiantian experimental cabin is currently the longest and largest flexible solar wing in China, which refreshed the record of the use of the solar windsurgery in the rail of my country's spacecraft.

According to Zhang Hao, I asked the Tianjie Experimental Card Sun Wing Single to expand the array and some installation structures. The length is close to 28 meters. All the two solar wings are about 56 meters. Large, and a solar wing area can reach more than 100 square meters, which will effectively collect more solar energy and provide sufficient energy for the operation of the space station.

"Such a large solar -wing single -wing power generation power is 9 kilowatts, and the double -wing can reach 18 kW, and the average daily power generation is exceeded 430 degrees. After the connection with the core class, it can meet the power consumption needs of the entire space station." Zhang Hao said.

Ask the solar wing of the Tianjin experimental cabin to be large and flexible. Song Xiaoguang, deputy director of the GNC System of Aerospace Science and Technology Group, said that this solar wing is only harder than clothes, and it uses dual -axis control. Chao.

After the completion of the space station, a sun and winding in the core cabin will be transferred to the tail of the resource compartment of the test compartment of the sky. At that time, asking the Tianyan experimental cabin will become a veritable "main power station". Power supply and energy.

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