According to the operating conditions and load requirements of the lifting exoskeleton. a harmonic reducer with large reduction ratio and high torque output is designed in this paper (Xiang Guoqi. 2005). From the perspective of structural dynamics (Donghui et al. https://www.lightemupsequences.com/hot-mega-Esko-Nexus-HeightMaster-Vented-Safety-Helmet-big-savings/