Not only the overall scheme for the frame of this system is determined, but also the scheme for transmission of luffing motion and rotating motion is done. In addition, the design and calculations are done for driving, transmitting, hoisting, balancing jib, tower cap and dolly of luffing motion.
本文确定回转塔式起重机试验台的总体结构方案，确定变幅运动和回转运动的传动方案，设计和计算变幅运动的驱动部分，传动部分，起重臂，平衡臂，塔冒和小车。
Main technical parameters: hydraulic crane system task is telescopic boom (telescopic range within 10m) luffing jib (boom to change the angle with the ground) 35 ° to 25 ° between.
主要技术参数：起重机液压系统的工作任务是起重臂伸缩（伸缩幅度在10m以内）起重臂变幅（改变起重臂与地面的夹角）35°到25°之间。
The medium-duty series products have three operating modes for selection: crane operation with main boom, crane operation with fixed fly jib and crane operation with luffing fly jib
中等吨位系列产品－具有主臂工况、固定副臂工况和塔式副臂工况三种工况。
Head, crane operation with fixed fly jib, crane operation with luffing fly jib, crane Superlift operation with main boom, crane Superlift operation with fixed fly jib, and crane Superlift operation with luffing fly jib.
QUY600 QUY800 该系列产品最显著的特征是带超起工况。具有主臂重型臂工况、主臂轻型臂工况、固定副臂工况、塔式副臂工况，以及超起主臂工况、超起固定副臂工况、超起塔式副臂工况。
It changes working radius usually by luffing jib.
通常多采用俯仰臂架的方法来实现工作幅度的改变。
A new-type quayside container crane with jib-bridge luffing system as the main working part is brought out.
提出一种以臂桥架变幅系统为主要工作机构的岸边集装箱起重机。
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。
Recommendable Two Types of KROLL Luffing Jib Cranes Luffing mechanism s of goose neck jib lorry loading cranes
介绍两种KROLL动臂塔式起重机折臂式随车起重机的变幅机构
Determining and Checking Up the Geometrical Size of the Double Link Jib System and the Balance Lever System in the Four-link Luffing Mechanism Which Contains the Rigid Rod
四联杆刚性拉杆变幅系统的组合臂架和平衡杠杆几何尺寸的确定及检验
Application of a New Exchange-Multiplying Factor Device for Luffing Jib Tower Crane
新型换倍率装置在动臂式塔机上的应用
In recent years, large luffing jib tower crane is widely available in superhigh-rise building and thermal power construction.
近年来，大型动臂塔式起重机在超高层建筑以及火电建设中得到了广泛的应用。
Huge luffing jib tower crane is widely used in the building construction, Especially in the high-rise building construction, its utilization of the amplitude is higher than other types of cranes.
大型动臂塔式起重机广泛应用于建筑施工中，特别是在高层建筑施工中，其幅度利用率比其他类型起重机高。
But in the design methodology of luffing jib tower crane, most domestic enterprises still use of the traditional design method of CAD/CAE-separated, which has contributed to low efficiency and design quality.
然而在动臂塔式起重机的设计上，国内绝大多数厂家仍然采用传统的CAD与CAE相分离的设计方法，不仅设计效率极其低下而且无法保证产品的设计质量。
So the proposed theories and technologies provide strong support for the research and development of the D6560/50t luffing jib tower crane.
由此，本文的理论研究为D6560/50t动臂式塔机的研发提供了有力的支持。
A luffing extension-jib was installed on top of the carriage with a telescopic nacelle.
在方舱上安装由液压系统控制的可升降伸缩旋转吊臂；在吊臂顶端安装有可折叠吊篮。
A brand-new jib-bridge luffing system of crane is brought out based on analysis of the limitation to handle containers of the portal crane.
摘要在分析门座起重机用于集装箱装卸作业的局限性的基础上，提出一种新型的起重机变幅系统。
The Camber Curve of Crane Beam and Compensation of Elastic Deformation of the Level-luffing System of Jib Cranes and Floating Cranes
桥式起重机预拱曲线与门座起重机、浮吊水平位移曲线的补偿