提供全套毕业设计，各专业都有摘要进入 21 世纪以来，我国的煤炭工业进入了快速进展的轨道，门式采样机因其在露天作业环境中有其它类型采样机无法替代的优势，因此对其进行讨论、创新，使其结构更合理，使用更方便，具有重要的战略和现实意义。本设计以通用门式采样机结构设计为设计目标，内容包括主梁、支腿、马鞍、上下横梁等结构的设计。首先采纳许用应力法及计算机辅助设计方法和第四强度理论对主梁结构进行载荷计算，然后对其强度、稳定性、刚度进行校核，最后进行螺栓连接的计算。如不符合，重复所做步骤。其设计很好的体现了结构力学、材料力学在金属结构件和采样机运输中的重要运用。关键词：门式采样机；金属结构；载荷计算；双梁 .Abstract In the 21st century, China's railways, shipbuilding industry has entered a rapid development track, gantry crane in its operating environment in the open air there are other types of cranes can not be replaced advantage, so its research, innovation, its structure is more reasonable , More convenient, has important strategic and practical significance.The design-A double beam gantry crane design goals for the design, including the main beam, legs, saddle, upper and lower beams and other structures. Focus on part of the structure of the load and load combinations, the final calculation of the bolt connection. Good indication of the design of structural mechanics, mechanics of materials in the metal structure and the importance of transport used cranes.Key words ： Gantrycranes; metalstructure; loadcalculation; doublebeam .目录第一章 前言...................................................11.1 结构简介................................................11.2 进展现状................................................11.3 讨论目的和意义..........................................2第二章 总体设计...............................................42.1 总体设计................................................42.1.1 材料选择.........................................
