机械毕业设计1551摇臂式行车设计.docVIP

本 科 毕 业 论 文（设 计） 题目： 摇臂式行车设计 学 院：工学院 姓 名： 学 号： 专 业： 年 级： 指导教师： 二0 一四 年 五 月 目 录 摘要 1 Abstract 2 1 前言 3 2 设计计算 4 2.1 工字梁的选取 4 2.1.1 工字梁的受力分析 4 2.1.2 工字梁的最大转矩 5 2.1.3 工字梁的刚度计算 9 2．2 工字梁与立柱连接主轴设计计算 10 2.2.1 轴的材料选择 10 2.2.2 轴的结构设计 10 2.2.3 轴上零件的定位 10 2.2.4 轴的结构工艺性 11 2.2.5 轴的尺寸的设计计算： 11 2.2.6 轴的强度校核 13 2.2.7 确定个轴段的直径 14 3 电葫芦的选择: 14 4 开式齿轮的选取 15 5 轴承的校核选用 15 6 回转驱动装置选择 15 7.电动葫芦限位装置设计 16 8 机座的固定 17 参考文献 18 致谢 19  摘要 摇臂又称立柱式臂起重机，起重量在1255000千克， Abstract Rocker driving is also called the pillar jib crane lifting Weight in 125Kg-5000Kg, is composed of an upright column rocker arm-rocker driving device and electric hoist components. The column is the base through the bolt and set in concrete foundation driven by a motor reducer drive the rocker arms, electric hoist for movement operation in the spiral arms i-steel .It’s features are light weight, arm length, weight, installation, operation ,repair simple .They are complete lying dependent, is an ideal job crane, yard and loading and unloading platform and is suitable for outdoor. The column has the advantages of small Rocker?driving?is also called the?pillar?jib crane,?lifting weight?in 125Kg-5000Kg,?is composed of an upright column,?rocker arm,?rocker?driving device?and electric hoist movement?operation?in the spiral arms i-steel.?Its?features are:?lightweight,?arm length,?weight,?installation,?operation,?repair?simple.?They are completely independent,?is an ideal?job?crane,?yard?and?loading and unloading platform?and is suitable for?outdoor.?The column?has the advantages of small circumstances can also get great lifting height. Key words : rocker arm type,?column type,?crane 1 前言 起重机是一种间歇运动,回收机械。工作周期:从获取获取设备的项目,然后线性运动到目标位置项,然后反向运动,使取设备回原位,然后下一个周期。起重机械一般通过提高机制(物品上下运动)、运行(起重机械)、变幅机构和回转机构(移动项目级别),再加上焊接机制,动力装置,操纵和控制的重要辅助