通用双梁桥式起重机说明书.docVIP

毕业设计说明书 题目：32/5通用双梁桥式起重机小车计算 专 业： 机械制造与自动化 班 级： 2006级 学生姓名： 学 号： 2011年 4 月 1 日 摘 要 起重机的用途是将物品从空间的某一个地点搬运到另一个地点。为了完成这个作业，起重机一般具有使物品沿空间的三个方向运动的机构。桥式类型的起重机是依靠起重机运行机构和小车运行机构的组合运动使所搬运的物品在长方形平面内作运动。 起重机是现代生产不可缺少的组成部分，借助起重机可以实现主要工艺流程和辅助作业的机械化，在流水线和自动线生产车间中，起重机大大提高了生产效率。 本文主要完成了桥式起重机主体结构部分的设计及主梁和端梁的校核计算。采用正轨箱形梁桥架，正轨箱形梁桥架由两根主梁和端梁构成。主梁外侧分别设有走台，并与端梁通过连接板焊接在一起形成刚性结构。为了运输方便在端梁中间设有接头，通过连接板和角钢使用螺栓连接，这种结构运输方便、安装容易。小车轨道固定于主梁的压板上，压板焊接在盖板的中央。 本文正确选择了起重机桥架钢结构构造形式和构件截面，以保证其在使用过程中的强度、刚度和稳定性。设计时，同时还注意了起重机的结构制造工艺性、省料、安装以及维修方便等问题。 关键词：桥式起重机；主体结构；桥架 Abstract Cranes are used to move items from one space to another location moving location. To accomplish this work, cranes usually have to make goods movement along the three directions of space agencies. Type of crane bridge crane is to rely on institutions and the combination of sports car run institutions to make the handling of goods for movement in the rectangular plane.  Crane is a modern production indispensable part of the main flow can be achieved with cranes and ancillary operations of mechanization, the assembly line and automatic line production plant, the crane has greatly enhanced productivity.  In this paper, completed the main structure of part of the bridge crane design and the main beam and side beams checking calculation. Box girder bridge with the right track, track box beam bridge consists of two main beams and side beams constituted. There were walking outside the main beam units, and interconnect with the end beam welded together by the formation of rigid structure. In order to facilitate the transport beam in the middle of side with connectors, interconnect and angle through the use of bolts, this structure easy transportation, easy to install. Car track in the main beam of the fixed platen, the cover plate welded to the center.  This correct choice of the crane bridge steel structures and components section of the form to ensure its use during