IT home January 6 news, according to the China Manned Space Engineering Office news, Beijing time on January 6, 2022 at 6:59, after about 47 minutes of cross-system close coordination, the space station robotic arm transposition cargo spacecraft test has been a complete success, which is China's first use of space station robotic arm operation of large-scale orbiting vehicle for transposition test.
In the early morning of January 6, the robotic arm successfully captured the Tianzhou-2 cargo spacecraft. At 6 o'clock, the 12-minute transposition test began, and after the Tianzhou-2 cargo spacecraft was unlocked and separated from the Tianhe core capsule, the core capsule node ball center was used as the center of the circle for plane transposition under the drag of the mechanical arm; then, the reverse operation was reversed until the cargo spacecraft and the core capsule were re-docked and locked.
In this test, the feasibility and effectiveness of using the robotic arm to operate the transposition of the space station module were preliminarily tested, and the transposition technology of the space station module and the large-load control technology of the robotic arm were verified, which accumulated experience for the subsequent assembly and construction of the space station.
IT Home learned that this mechanical arm was developed by the Fifth Academy of Aerospace Science and Technology Group, and is currently the space intelligent mechanical system with the highest complexity, largest scale and highest control accuracy among similar aerospace products. With a length of 10.2 meters and a maximum weight of 25 tons, the robotic arm can assist in the movement of an experimental chamber and can also assist astronauts in their outgoing activities.
The robotic arm of the space station's core capsule has a total of 7 joints, meaning 7 degrees of freedom. The robotic arm is divided into two parts, the large arm and the small arm, using the configuration scheme of "shoulder 3 + elbow 1 + wrist 3", the end part is called the "end effector", by docking with the target adapter on the surface of the cabin, the robot arm can be realized to crawl autonomously on the surface of the space station.