The hottest Luoyang Bearing helps Tianzhou No.1 to

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"Luoyang Bearing" helped tianzhou-1 to be lighter and more accurate

at 19:41 on April 20, tianzhou-1 cargo spacecraft soared to the sky. The successful launch of China's first cargo spacecraft is inseparable from the bearing technology of Luoyang LYC bearing Co., Ltd. in many key parts, which marks that Jin min's scientific research strength has reached a new level of technical support. Among them, the bearing integration technology and high-precision harmonic reducer bearing enable Tianzhou otherwise two broken samples to be lifted together, which is likely to cause sensor damage. No. 1 has lighter self weight and more accurate docking

tianzhou-1 cargo spacecraft is the world's most capable cargo spacecraft in active service. It has the functions of rendezvous and docking with tiangong-2 space laboratory, implementing propellant in orbit replenishment, carrying out space scientific experiments and technical experiments, and is known as "space courier". The successful launch of tianzhou-1 is the "final battle" of China's space laboratory mission, marking the beginning of the space station era in China

Qu Qiong, an engineer of Luozhou axis technology center, introduced that among the bearing products provided by the enterprise, the ground part includes radar bearings and launcher bearings of the measurement and control station, and the spacecraft part includes solar sail bearings, harmonic drive transmission bearings, and non standardized bearings under special working conditions for the rendezvous and docking of tianzhou-1 and tiangong-2

in order to enable the tianzhou-1 to carry more, many parts of the spacecraft have been designed with light weight. Among them, Luo shaft uses the bearing cement slurry to fill all the gaps under the base, and has innovatively developed a number of non standardized bearings under special working conditions. The integrated design of the bearing and relevant components other than the bearing realizes the integration of transmission, support, rotation and other functions, reduces the self weight of relevant mechanisms, and helps tianzhou-1 load more light

harmonic reducer bearings are also used to help lighten the spacecraft. Qu Qiong said that in order to minimize the weight in a limited space, the bearing of the harmonic reducer is designed to be light. The wall thickness of the thinnest ferrule is less than 1 mm. It may be deformed due to its own weight when it is erected on the plane, which is evident in the difficulty of processing. In addition to tianzhou-1, most of the harmonic reducer bearings of the previous Shenzhou series spacecraft, Tiangong series space laboratory and Chang'e series satellites came from the Luo axis

Luo axis products not only make the spacecraft lighter, but also move more accurately. Under the lightweight design of tianzhou-1, the transmission force in the rendezvous and docking with tiangong-2 is very small. It is necessary to use the "Dragonfly touch the water" force to achieve accurate driving and positioning, which is inseparable from the high rotation accuracy of the enterprise harmonic drive transmission bearing

Luo axis innovated the production process of bearings, continuously improved the surface quality of bearing rings and other key indicators, so that the surface fluctuation of the bearing raceway does not exceed 0.05 mm, successfully completed the production task with the highest accuracy level of the international general standard, greatly reduced the impact on the forced transmission, and achieved lower friction torque

as the holder of many bearing industry records such as the highest bearing accuracy, the most complex structure and the largest overall dimension in China, Luozhou axis has the only "State Key Laboratory of Aerospace Precision bearings" in the industry, and has produced series of supporting bearings for Shenzhou series spacecraft, Tiangong series space laboratory and Chang'e series satellites for many times, demonstrating its strong research and development strength of aerospace bearing technology

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