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长期困扰我国电梯业的有齿曳引难题有望在短期内解决。2002年1月27日,北京市科委组织技术鉴定会,以我国电器自动化行业技术带头人陈伯时教授和工程院院士曾广商等组成的鉴定委员会认为,由我国自行研制的自同步稀土永磁无齿曳引及驱动系统,为我国电梯“无齿化”进程提供了一条切实可
Long-term problems in China’s elevator industry, toothed traction problem is expected to be resolved in the short term. January 27, 2002, Beijing Municipal Science and Technology Commission organized a technical appraisal meeting, with the technical leader of China’s electrical automation industry Professor Chen Bo Shi Zeng Guangshang Academy of Engineering and other members of the appraisal committee that self-developed by China’s self-synchronous rare earth permanent magnetism Toothed traction and drive system for our elevator “no tooth” process provides a practical