新型差动式RMG总体设计与关键部件特性分析

General Design of New Differential RMG and Specificity Analysis on Key Components

轨道式龙门起重机(RMG)因其高速性能得到普遍运用。为消除目前移动小车上机构过多、过重所带来的不利影响,从减轻其移动载荷角度出发,设计了一款新型RMG差动驱动机构,将起升机构移至门框两侧,利用差动方式实现钢丝绳驱动小车行走和集装箱起升功能,并实现八绳单动防摇及吊具微动调整功能,简化了整个倾转系统,从而提高对箱、堆箱的自动化程度;同时结合结构优化技术,采用包容式节点桁架主梁,减轻了整机结构自重,提高了机械系统性能与可靠性。

The rail mounted gantry crane （RMG） is widely used for its high speed performance. In order to elimi-nate adverse effects caused by too many and too heavy trolley mechanisms and reduce its moving load, a new type RMG dif-ferential drive mechanism is designed to simplify the entire tilting system and improve the automaticity of stacking boxes, which puts the lifting mechanism on two sides of door frame, adopts differential way to realize functions of driving trolley and lifting containers by using wire ropes, and the function of eight ropes single-shaking stabilizer and slings micro adjust-ment. Combining with the structure optimization technology, the main girder using inclusive K-joints truss is also adopted to lighten the weight of the whole structure, which improves the performance and reliability of the mechanical system.