摘要
介绍了动臂变幅起重机所用的一种新型吊钩装置,阐明了它的结构组成和变倍率的原理,在此基础上以一应用实例分析了该吊钩变倍率的运动过程,最后画出了吊钩随钢丝绳变化的运动曲线,为吊钩的动力学分析奠定了理论基础.
The article introduces a new hook-device of the luffing jib crane, and illuminates its structure and theory of being transformed from single- to double-reeved. On this basis, it analyses the movement course of the hook being transformed from single- to double-reeved as an application example. At last it paints the movement curve of the hook. This work will lay a theory foundation for the dynamic analysis of the hook.
出处
《河北工业大学学报》
CAS
北大核心
2010年第1期1-5,共5页
Journal of Hebei University of Technology
基金
国家"十一五"科技支撑计划项目(2006BAJ12B03-2)
关键词
动臂变幅起重机
吊钩
奇偶倍率变换
运动曲线
luffing jib crane
hook
transformed from single- to double-reeved
movement curve