弹性套摩擦传动增速机构是以同轴方式利用具有弹性的外套,通过中间滚子带动中心轴转动的一种机构。其特点是结构紧凑,加压合理,适用于超高速转动。浙江大学光仪系研制的这种机构,已成功地运用于转镜式超高速摄影机等仪器设备上。本文通过对弹性套的理论分析,应用有限元数值计算原理,提出一个简易而精确的计算弹性套变形量 Elastic sleeve friction transmission growth mechanism is coaxially using a flexible jacket, through the middle of the roller drive center axis of rotation of a body. It is characterized by compact structure, the pressure is reasonable, suitable for ultra-high speed rotation. Zhejiang University Optical Instrument developed by such institutions, has been successfully applied to the mirror-type ultra-high-speed cameras and other equipment. Based on the theoretical analysis of the elastic sleeve and applying the principle of finite element numerical calculation, a simple and accurate method to calculate the elastic deformation