桥式起重机桥架结构设计.doc

优秀机械毕业设计欢迎下载学习交流加 QQ 197216396 专业机械设计解君之忧桥式起重机桥架结构设计摘要桥式起重机主要由机械部分、金属结构和电气三大部分所组成。机械部分是指起升、运行、变幅和旋转等机构,还有起升机构,金属结构是构成起重机械的躯体,是安装各机构和支托它们全部重量的主体部分。电气是起重机械动作的能源,各机构都是单独驱动的。构成桥式起重机的主要金属结构部分是桥架,它横架在车间两侧吊车梁的轨道上, 并沿轨道前后运行。本文根据桥式起重机起重量和跨度的要求,依据《起重机设计规范》、 GB/T3811-2008 等标准,设计计算了 50/10t × 偏轨双梁桥式起重机桥架结构的设计方案,并绘制了相关的三维结构图以及二维结构图。本文首先从整体设计出发,依次设计计算了 50/10t × 双梁桥式起重机的主端梁结构的主要机构部件。选取了大车车轮,小车车轮,小车轨道等起重机主要零部件。设计了符合经济梁要求的桥架结构,并校核了起重机桥架在危险截面处的强度和刚度等力学性能参数。设计过程中,桥架采用全偏轨箱形主梁、箱形端梁的双梁结构。桥架刚性好,制作方便。考虑到起重机整机和各个机构零部件的合理布置,作者通过计算多组数据来选择最优结果。达到了起重机各机构布置紧凑性和合理性的目的,从而优化了起重机整机的性能。本设计所选的大部分零件均具有通用化、标准化、系列化的特点,主要技术参数均符合 ISO 标准, 贯彻了国家以及起重机行业的所有最新颁布的各项标准。所设计的起重机整体安全、可靠。关键词:桥式起重机,桥架结构,金属结构,三维模型图,二维工程图优秀机械毕业设计欢迎下载学习交流加 QQ 197216396 专业机械设计解君之忧 The design of the structure of bridge crane Abstract Because the crane running at high altitude, scope of work can sweep the whole plant construction area, has a very important and irreplaceable role. Therefore ed by users, has been great development. Bridge crane is posed of the mechanical parts, metal structure and electrical three parts. The mechanical part is lifting, running, amplitude and rotating mechanism, metal structure posed of lifting body, is the main installation of various institutions and support them all the weight of the part. Electric isa lifting movement of energy, the agencies are separately driven. Constitute the main bridge crane metal structure part is the bridge, it is in the workshop crane beam transverse frame on both sides of the track, and along the track before and after operation. According to the requirements of the bidding documents of an enterprise and the design specification of crane GB/T3811-2008, performance evaluations of 50/10t × double beam bridge crane were calculated, and draw the three-dimensional structure and two-dimensional structure diagram. At the beginning of this article, the main structure of 50/10t × double beam bridge crane were calculated. Select the carts wheels, trolley w