Study on High Performance Filtering Driving Mechanism

　　Study on High Performance Filtering Driving Mechanism
　　Driving mechanism is a basic part whose accuracy, reliability, weight, size will directly affect the performance of electromechanical equipments. This research is one part of the Project“High performance frictional pairs and effective transmission mechanism technology in space environment”, which is supported by Subject of prepare study for civil aerospace of COSTIND during“Eleventh Five”(Authorized Number: C4220061319). Aiming at the problem existed in harmonic reducer and RV reducer that used in robot, aviation, aerospace etc. under the Neodymium Magnets special and extreme environment, professor Wang Jiaxu and others from Chongqing university proposed a new high performance filtering driving mechanism with high reliability, long service life, high precision, large torque, high efficiency, small volume and lightweight, which integrated nano-surface engineering, filtering transmission, permanent magnetic brushless DC motor, precision transmission and solid lubricate, and we develops prototype.
　　The major research is listed as follows:①Taking filtering mechanism as core component, then integrating the angle sensor and permanent magnetic brushless DC motor, the integration structure assemble drawings is designed, and then some analysis on the principle of filtering driving mechanism, DC motor and angle sensor are made. At last, the high performance realization methods of filtering driving mechanism are proposed, and optimum design on filtering transmission mechanism speed and motor parameters are also made;②The transmission principle of filtering transmission mechanism is analyzed. Parameter optimization and structure design of filtering transmission http://www.999magnet.com/products/110-sintered-neodymium-magnets mechanism are done. Integrated eccentric shaft with dual gear is defined as bearing-gear. Then, the gear strength is also calculated;③General structure design of bearing-gear has been done on the basis of the optimization of main parameters on bearing-gear. Then, the contact stress of bearing-gear is analyzed on the basis of Hertz theories, including calculation formula’s deducing and example’s calculating. After that, some study on the capacity load is made. At last, the friction moment of the bearing-gear is calculated and the material selection of bearing-gear is carried out;④The theories analysis and numerical calculation towards filtering gear transmission error and backlash error are done. Basic structure and methods that reduces backlash error are analyzed;⑤Testing methods and technical requirements of filtering driving mechanism are analyzed, high performance precision transmission testing bed is also developed. The experimental research such as transmission efficiency, rigidity and noise of filtering transmission mechanism are done.