桥式起重机的起升结构设计VIP免费

I 目 录1 绪论 ........................................................................................................................................ 11.1 起重机的基本组成 .......................................................................................................... 11.2 起重机运行机构的基本构造及其特点.......................................................................... 11.3 起重机运行机构的驱动方式.......................................................................................... 21.4 起重机设计参数 .............................................................................................................. 52 大车运行机构计算 ................................................................................................................ 52.1 确定传动方案 .................................................................................................................. 52.2 选择车轮与轨道并验算其强度...................................................................................... 62.3 运行阻力计算 .................................................................................................................. 72.4 选电动机 .......................................................................................................................... 82.5 验算电动机发热条件 ...................................................................................................... 82.6 选择减速器 ...................................................................................................................... 92.7 验算运行速度和实际所需功率...................................................................................... 92.8 启动时间验算 ................................................................................................................ 102.9 起动工况下减速器功率校核........................................................................................ 112.10 起动不打滑验算 .......