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阐述了塔式起重机现有的倍率转换方式,分析了现有方式的优缺点。提出了一种结构简单的新型自动倍率转换方法,并建立倍率转换结构关键部位的接触曲线模型,保证了此倍率转换的平稳性。
The current magnification conversion method of tower crane is expounded, and the advantages and disadvantages of the existing methods are analyzed. A new type of automatic ratio conversion method with simple structure is proposed and a contact curve model of the key parts of the ratio conversion structure is established to ensure the smoothness of this ratio conversion.