基于行星传动的起重机结构轻量化与机构减量化设计研究

Lightweight design and mechanism reduction design of crane structure based on planetary transmission

针对起重机结构质量过大、机构能耗高等问题,文中提出一种基于系统集成和结构优化的面向起重机整机的轻量化设计方案。首先,针对起重机小车进行机构减量化设计研究,采用行星减速传动方案进行传动系统布局重构,采用模块化设计思路,实现起重机小车减量化设计;采用智能优化算法对结构设计参数进行基于整机设计安全的搜索与优化,实现面向起重机结构的轻量化设计。将2种面向起重机减重的设计方案进行系统集成,以通用桥式起重机整机为对象对本文研究内容进行验证分析后可知,通过新型起重机设计方案可实现起重小车减重46.88%,起重机主梁结构减重15.36%的效果。本研究为起重机整机的轻量化设计提供了一种新的思路和方案,对于推动起重机轻量化、绿色化的发展方向具有一定参考价值。

Considering the mass of crane structural materials and high energy consumption of the mechanism,in this paper,a lightweight design scheme for the whole crane based on system integration and structural optimization is proposed.Firstly,the reduction design of crane trolley was studied,and the layout of transmission system was reconstructed by adopting planetary reduction transmission scheme,and the reduction design of crane trolley was realized by adopting modular design idea.Through the intelligent optimization algorithm,the structural design parameters were searched and optimized based on the safety of the whole machine design,and the lightweight design of the crane structure was realized.According to the system integration of two crane weight reduction schemes,the research contents in this paper are verified and analyzed.The results show that the new crane design scheme can reduce the weight of the crane trolley by 46.88%and the weight of the crane main beam structure by 15.36%,which provides a new idea for the lightweight design of the whole crane and provides a reference for promoting the development of lightweight and green crane.