These more than 100 kilograms of "big guys" make the space station "sit as bells, walk like wind"

Asked the launching task of the sky, the construction of the experimental cabin was successful, and the construction of the Chinese space station entered a new stage. The unremitting pursuit of technological innovation and reliable products is the eternal topic of Chinese aerospace. In the Long March 5 -Car -Car Rockets launched the Tiangtian Experimental Class, new technologies and new products, good technologies and good products have emerged endlessly. develop. We have a column of "Ask the Sky" Black Technology to interpret some representative technologies and products, and see how "black technology" shows his skills.

On July 24, my country successfully launched an experimental compartment in Wenchang Aerospace launches. As the Chinese Space Station is getting bigger and bigger, its attitude control is also unprecedented in my country's aerospace flight mission. Asked the sky's experimental cabin, there were 4 "big guys" weighed more than 100 kg of "big guys", and the posture control of the space station was inseparable from them.

The scientific name of the "guy" is the control force gyroscope. It is an inertial execution component controlled by the spacecraft gesture. The angular momentum is obtained through a high -speed rotating flywheel, and the torque is output by changing the direction of the angle momentum. Multiple control torque gyroscopes can be used in combination, so that more than 100 tons of space can stand in the space "sitting like a clock, walking like a wind".

The controlling torque gyroscope used by China Space Station was developed by 502 of the Fifth Hospital of China Aerospace Technology Group Co., Ltd. Its angular volume was 1500NMS (Nm seconds). It is currently the largest of this type of product in my country. Configuration. This configuration is the advanced place of the combination system level, which can be used in convergence and restructured through the general network on demand.

Six of them have been installed on the outer wall of the cone surface with the large pillar section of the core cabin of the space station. The other 6 units, the Tianzhou 4 has been brought to one Tianzhou No. 4, this time I asked the Tianda test cabin to bring another 4 units. The subsequent Tianzhou 5 will be "poured" to one. Experimental cabin.

▲ Six large -scale control torque gyro that have been installed in the core compartment of the space station

If pre -research was carried out in 1998, it was 23 years since the control of the controlling torque gyroscope used in the space station for the first time in 2021. The research and development of my country's control torque gyroscope can be described as hard -working.

Autonomous tackling "Blocking"

Wan miles wear needle, no it can; build a space station, no it does not work; develop fast motor spacecraft, no it can ...

Controlling torque gyroscope was once the "block tiger. In 1991, my country began to demonstrate the space laboratory and space station project. At the beginning of the demonstration, I firmly chose self -reliance.

The 502 team of the Fifth Hospital of Aerospace Science and Technology Group began to control the technical research and development of the torque gyroscope and product research and development, but the difficulty exceeded everyone's imagination. As the so -called "thousands of hammers become sharp weapons, Bai Lian becomes pure steel." After all kinds of bumps and tribulations, the team has touched for more than 10 years, and they eventually succeeded.

The first heaven in my country was the control torque gyroscope in 2011. With Tiangong No. 1 heaven. Its rail application is a milestone in the development of my country's space mechanical and electrical components, making my country the third country in the world to master the technology.

From "Blocking" to the peak of technology

Starting from Tiangong No. 1, the Fifth Hospital of Aerospace Science and Technology Group has developed a series of controlling torque gyroscope products for larger and smaller spacecraft applications. However, unlike the application of the torque gyroscope on other spacecraft, the space station task has higher requirements- —————

Other spacecraft control torque gyro is installed in the cabin, and the working environment is relatively single, and the control force gyroscope on the space station needs to adapt to the two working environments of the inside and outside of the cabin at the same time, bringing a lot of challenges, especially for more than 200 degrees In the temperature difference, the developers had to conduct a special thermal control design. For the products in the cabin, the noise reduction work was also carried out.

▲ Shenzhou No. 14 Aerospace staff set up controlling torque gyroscope on the orbit

As the most complicated space mechanical and electrical products, the working environment of the torque gyroscope is harsh and long -lived. In order to ensure the life and reliability of the space station, controlling the torque gyroscope needs to have the ability to replace in the orbit, so it is necessary to carry out the design verification of the rail maintenance and industrial efficiency. In order to meet the requirements of longevity and high reliability at the same time, the redundant backup problems are also required in the design.

The space station mission has increased the use of the control force gyro to the use of Chinese spacecraft to a new height. Plug -in Tiger became a peak of technology.

Product -type spectrum development

A few years after the Fifth Hospital of Aerospace Science and Technology Group, in the years after the number of Tiangong No. 1, it has successively developed a full range of control force gyroscopy products that meet the needs of various types of space aircraft gesture and gesture control needs.

Compared with the first generation of heaven products, the control of the control of the torque gyroscope of Xinyan has greatly improved, and has the advantages of high accuracy, fast response, long life, and high reliability, which can meet the gesture control requirements of various types of space aircraft in my country.

The application of a series of products has significantly improved the stability and stability control of my country's space aircraft, making the satellites more accurate and wider, and one more at most. The development and application of controlling the torque gyroscope also promoted the rapid development of my country's space inertial execution agencies. (China Aerospace Science and Technology Group)

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