本科毕业设计（论文）
题 目 QD10t-31.5m箱形双梁桥式起重机起重小车设计
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目录
第1章 前言··········································································1 1.1 国内外起重机发展情况·······················································1 1.2 桥式起重机定义及特点·······················································4 1.3 实习地点及实习内容··························································4 第2章 总体设计···································································4 2.1 概述·············································································5 2.2 传动方案的确定·······························································6 2.3 基本参数······································································10 第3章 起升机构的设计计算···················································12 3.1 选择钢丝绳···································································12 3.2 滑轮和卷筒的计算···························································13 3.3 计算静功率···································································15 3.4 选择电动机···································································15 3.5 验算电动机的发热条件······················································15 3.6 减速机的初选································································16 3.7 校核减速机···································································16 3.8 制动器的选择································································17 3.9 联动器的选择································································17 3.10 验算起动时间·······························································18 3.11 浮动轴强度验算····························································19 第4章 运行机构的设计计算···················································21
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4.1 确定机构传动方案···························································21 4.2 选择车轮与轨道并验算其强度··············································21 4.3 运行阻力计算································································23 4.4 选择电动机···································································24 4.5 验算电动机发热条件························································25 4.6 选择减速器···································································25 4.7 验算运行机构和实际所需功率··············································25 4.8 验算起动时间································································26 4.9 验算起动不打滑条件························································27 4.10 制动器的选择·······························································27 4.11 选择联轴器··································································28 4.12 验算低速浮动轴强度·······················································29 第5章 零部件的设计计算·····················································31 5.1 滑轮的尺寸计算与选择······················································31 5.2吊钩组的选择·································································32 5.3 车轮轴的设计计算···························································35第6章 零部件的设计计算·····················································38 6.1 梁Ⅰ···········································································38 6.2 梁Ⅱ···········································································40 6.3 梁Ⅲ···········································································42 6.4 梁Ⅵ···········································································44
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