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介绍平臂塔式起重机的起升绕绳方式,阐述变幅小车的设计方法和构造特点,阐明滑轮组倍率的变换方法,给出一种基于倒三角臂架轨道的多种倍率变换的单轨变幅小车。
This paper introduces the hoisting ropes of the flat-arm tower crane, describes the design method and structural features of the variable-amplitude car, explains the transformation method of the pulley group magnification, and gives a monorail luffing based on the multiple- Car.