These capacity charts show the figures when handling load off main boom head sheaves in a case of mounting fly jib on top of main boom. 这些功能表显示了在主悬臂顶端安装飞臂情况下将负载操作离开主悬臂头滑轮时的数据。
Finite element analysis of 80t crawler crane main jib 80t履带起重机主臂架有限元分析
This paper presents the main types and features of luffing mechanisms of goose neck jib lorry loading cranes and proposes design requirements for 304304 type luffing mechanism. 介绍了随车起重机变幅机构的主要形式和特点,提出304304型变幅机构在设计时的要求。
Cause Analysis of a Fracture of the Portal Crane Main Jib 门座式起重机主臂架折断的原因分析
The main technical problems met in ( developing) the telescope jib railway wrecking crane are ( described) and analysed considering the real operation ( condition) in plateau. The new technology and new structure planned on using in the crane are proposed in this paper. 结合高原铁路实际运用条件,对高原用伸缩臂式铁路救援起重机在研制过程中遇到的主要技术问题进行了阐述和分析,提出了拟采用的新技术和新结构。
Finally, the description of rules is drawn that the optimal moment center changes with the main parameters of jib. 同时给出全力矩取矩中心随塔机吊臂等主要参数变化而变化的趋势描述。
The main works are listed as follew: The major action of executive mechanism were analyzed in this dissertation, which include boom lift, jib deploying and retracting, telescopic expansion, harvester head working, working arm rotation and other secondary action. 主要工作:论文分析执行机构主要动作:主臂升降、副臂收放、伸缩臂伸缩、伐木头工作、工作臂回转以及其它辅助动作。
The combination of main boom and tower jib has been widely used for large lifting height and workable radius of the crane. 为实现起重机大起升高度和大幅度,主臂与副臂的组合方式得到了广泛应用。