桥式起重机起升机构设计Word文档下载推荐.doc

1、1.1 对起重机研究意义31.2 国内外起重机31.2.1 国外起重机31.2.2 国内起重机发展方向41.3 设计内容4第 2 章 主起升机构的设计52.1 确定起升机构传动方案，选择滑轮组和吊钩组52.2 选择钢丝绳52.3 确定滑轮主要尺寸62.4 确定卷筒尺寸并验算强度72.5 选电动机92.6 验算电动机发热条件102.7 选择减速器102.8 选择制动器122.9 选择联轴器122.9.1 高速轴联轴器12 2.9.2 低速轴联轴器 132.10验算起动时间13 2.10.1 起动时间tq 验算 1 32.10.2 起动平均加速度aq142.11 验算制动时间142.11.1 满载

2、下降制动时间142.11.2 制动平均减速度15第 3 章 小车运行机构183.1 确定机构传动方案183.2 选择车轮与轨道并验算其强度183.3 运行阻力计算193.4 选电动机203.5 验算电动机发热条件213.6 选择减速器213.7 验算运行速度和实际所需功率213.8 验算起动时间213.9 按起动工况校核减速器功率223.10 验算起动不打滑条件233.11 选择制动器23第 4 章 副起升机构设计.274.1确定传动方案,选择滑轮组和吊钩组.4.2选择钢丝绳.4.3确定卷筒尺寸并验算强度.284.4计算起升静功率.4.5初选电动机.294.6选用减速器.4.7电动机过载验算和

3、发热验算.4.8选择制动器.304.9选择联轴器.314.10验算起制动时间.第 5 章 大车运行机构的设计.355.1确定机构的传动方案.5.2选择车轮与轨道，并验算其强度. 5.3 选择车轮轨道并验算起强度365.4 运行阻力计算375.5 选择电动机385.6 验算电动机发热条件385.7 选择减速器385.8 验算运行速度和实际所需功率395.9 验算起动时间395.10 起动工况下校核减速器功率405.11 验算起动不打滑条件415.12 选择制动器425.13 选择联轴器435.13.1 机构高速轴上的计算扭矩435.13.2 低速轴的计算扭矩445.13.3 浮动轴的验算44参考

4、文献46致 谢摘要 根据机械设计的标准和起重机设计标准，依据任务书所给参数设计出了桥式起重机起升机构。起升机构采用电机驱动，布置方式为电机轴与卷筒轴平行布置大（小）车的运行机构的主动轮采用对面布置方式，集中驱动。各部件之间采用齿轮联轴器（有补偿性能）连接，安装在减速器高速轴上的联轴器带有制动轮，这样设计，即使联轴器在工作中被损坏，制动器仍可保证卷筒的制动。为使起升机构增大补偿能力并更合理布置，采用浮动轴连接电动机与减速器。带制动轮的半联轴器和制动器在浮动轴被扭断时，仍可以保证制动住卷筒。 本起重机为起重量Q=100/30t，起升高度H=16m，起升速度v=24m/min的桥式四主梁起重机。该起

5、升机构主要有一台电动机，一台减速器，一套卷筒装置，一套滑轮装置和一套吊钩装置构成。关键词：桥式起重机； 起升机构； 小车运行机构.Abstract According to the mechanical design standards and design standards for cranes and other parts of the selection criteria, based on the given parameters and the specific working environment, the design of the bridge crane car age

6、ncies. Lifting bodies using motor-driven layout with the use of motor axis equal axis reel layout. Car driving wheel used to run institutions across the layout, concentrated drive. Between the various components of compensation with the performance of the use of the gear coupling to connect with the

7、 coupling wheel brake installed on the axis of high-speed reducer, so that even if the coupling has been damaged can be brake drum brake to ensure that security agencies. In order to facilitate the hoisting mechanism and increase the compensation arrangement of capacity between the motor and reducer

8、 with floating-axis connection. Semi-round with brake and brake gear coupling near the reducer, if the floating-axis has been broken, brakes can still brake drum live. Keywords: bridge crane；hoisting mechanism；car run institutions；The moving mainframe。The crane is bridge crane for lifting weight Q=1

9、00t,hoisting height H=26m,lifting speed v=24m/min. The crane is consisted of a lifting mechanism,an electric motor, a brake,a speed reducer,a set of drum unit,a pulley and a set of hook device.Required lifting equipment running smooth,accurate,safe,reliable and advanced technical performance.Keyword:car run institutions第 1 章 绪 论1.1 对起重机研究意义起重机械是用来对物料进行起重、运输、装卸和安装作业的机械。 它可以完成