The invention discloses a variable cross-section structure of a double-slewing tower body of a super-large tower crane, which is characterized in that the geometric large size at the lower part is hinged with a slewing assembly, and the geometric sizes of the middle part and the upper part, which are matched with a rear-connected balance arm and a front-connected cargo boom, are reduced according to a compact design thought. Corresponding parallel-connection double slewing tower bodies are designed, and the technical goal that the self weight and the transportation size of a single piece in an independent type distribution stress structure meet market requirements is achieved. The problem that in design, analysis and calculation, the geometric size of hinge joint of a rotary assembly is large, and the size fit determines the ineffective cost that the geometric size of the lower portion of a rotary tower body is large is effectively solved. At the moment, according to the conventional structural design, the geometric dimensions of the middle part and the upper part of the slewing tower body are larger, and the geometric dimensions of the balance arm, the cargo boom and the variable-amplitude trolley which are connected with the slewing tower body are increased. The result has great influence on the basic data and load performance of the dead weight of the parts above the rotation of the whole machine, and the designed economic index is also greatly influenced.
本发明公开了一种超大塔机双回转塔身变截面结构,在下部的几何大尺寸与回转总成铰接相连,中部及上部按照紧凑式设计思路,将与后连平衡臂、前连起重臂配合的几何尺寸缩小。设计相应的并联双回转塔身,形成独立式分配受力结构下单件自重与运输尺寸符合市场需求的技术目标。有效解决了在设计分析计算中,往往回转总成铰接的几何尺寸较大,尺寸配合决定了回转塔身下部几何尺寸较大的无效成本问题。此时按照常规结构设计,回转塔身中部和上部几何尺寸也会较大,并导致与之相连的平衡臂、起重臂、变幅小车几何尺寸变大。这一结果对于整机的回转以上部件自重的基础数据以及载荷性能都会产生较大的影响,设计的经济性指标也受到极大的影响。
Super-large tower crane double-slewing tower body variable cross-section structure
一种超大塔机双回转塔身变截面结构
2024-10-15
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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