龙门式起重机总体设计及金属结构设计概要.doc

辽宁工程技术大学 本科毕业设计（论文） 教 务 处 2005年12月 中文题目：龙门式起重机总体设计及金属结构设计 外文题目：Dragon Gate Cranes design and metal structure design 毕业设计（论文）共 页（其中：外文文献及译文02页） 图纸共2张 完成日期 2006年6月 答辩日期 摘要： 起重运输机金属结构主要构件所用的材料有普通碳素钢，优质碳素结构钢，普通低合金钢，合金结构钢。金属结构的支座常用铸钢。金属结构的联分为焊接和螺栓联接两大类。 关键词： 起重机，金属结构，承载能力，疲劳强度，强度。 Summary Since the reform and opening up, with the rapid development of the national economy, the growing market demand for cranes. In recent years, the crane industry has been around for 15% growth rate, rapid development, the ownership of components crane industry has undergone tremendous changes, with the exception of state-owned professional crane plant, collective, joint ventures, investment and private development has been rapid. Promote research to improve productivity and product quality, reduce costs and expand the scope of application of the various field cranes and crane technology development directions. Current and emerging high-performance succession process, the capacity to adapt to the working environment, supports a strong ability to function, to resist fatigue strength to resist bending performance and the performance of refined performance, colleges, and economic crane design new methods. Although Chinese crane industry in the past 10 years has made remarkable progress, but with many industry lags far behind developed countries. Currently, the major lift transport aircraft structural components used in the metal materials with ordinary carbon steel, quality carbon structural steel, low alloy steel ordinary, alloy structural steel. Common cast steel base metal structure. Metal welding and bolts into the structure of the links in two broad categories. key wordS: Cranes, metal structure, carrying capacity, fatigue strength, intensity 目录 2龙门式起重机设计的总体设计方案………………………………5 2.1龙门起重机总体设计所需的基