30T桥式起重机小车运行机构计算

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30T桥式起重机小车运行机构计算摘要.............................................................................................1
Abstract......................................................................................2
第-章概述................................................................................5
1.1概论....................................................................................5
1.2桥式起重机发展概述........................................................6
1.2.1国外桥式起重机发展动向................................................6
1.2.2国内桥式起重机发展动向................................................6
第二章桥式起重机介绍............................................................7
2.1桥式起重机的组成和特点....................................................7
2.1.1 通用桥式起重机.............................................................7
2.1.2  专用桥式起重机..............................................................8
2.1.3 电动葫芦型桥式起重机.................................................9
2.2.1桥式起重机小车................................................................9
2.2.2桥式起重机小车运行传动机构......................................10
2.3 桥式起重机运行机构设计的目的、内容和要求.............10
2.3.1设计目的..........................................................................10
2.3.2设计内容..........................................................................10
2.3.3设计要求..........................................................................10
第三章小车运行机构的计算..................................................12
3.1 确定机构的传动方案........................................................12
3.2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.................................................................18
3.2.8 按起动工况校核减速器功率.........................................19
3.2.9验算起动不打滑条件......................................................20
3.2.10 选择制动器...................................................................21
3.2.11 演算制动不打滑条件...................................................21
3.2.12选择联轴器.....................................................................21
3.2.13 演算低速浮动轴强度...................................................23
第四章 大车运行机构的计算.................................................24
4.1设计的基本原则和要求.....................................................25
4.1.1 机构传动方案...............................................................25
4.1.2 大车运行机构具体布置的主要问题...........................26
4.2 大车运行机构的计算........................................................26
4.2.1 确定机构的传动方案. .................................................26
4.2.2 选择车轮与轨道，并验算其强度...............................27