32t桥式起重机小车运行机构毕业设计.doc

摘要 本文主要介绍了桥式起重机的整体设计理论和设计过程，其中重点设计了桥式起重机的运行机构起升机构等，主要包括桥式起重机小车运行机构的整体设计及传动机构的布置，小车运行机构计算。还有轴承的选择、联轴器的选择、电动机的选择、减速器的选择和校核。 关键词：桥式起重机；起重机小车；卷筒；减速器。 Abstract This article mainly introduced the entire design theory and design process of bridge-type hoist crane，which focused on the design of the bridge crane operation of institutions and hoisting mechanism．The overall design that mainly includes the bridge type derrick small car to circulate organization and spread the decoration that the motive reaches, the small car circulates an organization calculation.Still have the choice of the choice, electric motor of the choice, allied stalk machine of bearings, decelerate machine of choice and pit in the school. Keyword:Bridge type derrick;The derrick small car;Book tube;Decelerate a machine.  目录 摘要.............................................................................................1 Abstract......................................................................................2 概述................................................................................5 概论....................................................................................5 桥式起重机发展概述........................................................6 国外桥式起重机发展动向................................................6 国内桥式起重机发展动向................................................6 桥式起重桥式起重机的组成和特点通用桥式起重机? 专用桥式起重机电动葫芦型桥式起重机2.2.2桥式起重机小车运行机构2小车运行机构的计算.........................................................13 3.2.1 选择车轮与轨道并验算起强度.....................................14 3.2.2 运行阻力的计算.............................................................15 3.2.3 选择电动机.....................................................................16 3.2.4 验算电动机发热条件.....................................................17 3.2.5 选择减速器.....................................................................17 3.2.6 验算运行机构速度和实际所需功率.............................18 3.2.7 验算启动时间......................................................