一、引言 自动扶梯在人流集中的公共场所,诸如机场、车站、地铁、商场等处,使用甚为广泛。在国外,自动扶梯已十分普及。由于自动扶梯的提升高度不断增大,同时节约能源、节约空间的要求越来越高,因而要求自动扶梯的结构形式有相应的改进。 传统的自动扶梯的驱动装置都装在上部,占用的空间位置很大。当提升高度增大时,驱动功率随之加大,驱动机组所占用的空间也相应加大。此外,传统的自动扶梯扶手带有反向 I. INTRODUCTION Escalators are widely used in crowded public places such as airports, railway stations, subways and shopping malls. In other countries, escalators have become very popular. Due to escalator lifting height increasing, while saving energy, saving space requirements are getting higher and higher, thus requiring the escalator structure of the corresponding improvements. The traditional escalator drive are installed in the upper part of the space occupied by the location. When the lifting height increases, the drive power increases, the space occupied by the drive unit also increased accordingly. In addition, the traditional escalator handrail with reverse