行走式液压起重机设计.doc

天津工业大学 毕业设计（论文） 题目：行走式小型液压起重机设计 姓 名 官纯宇 学 院 机械电子学院 专 业 机械工程及自动化 指导教师 张迎春 职 称 教授 2009年 6 月 5 日 摘 要 随着国民经济的迅速发展，国内汽车起重机的市场需求也在不断增加。各起重机生产厂为了争夺更多的市场份额，都在不断对自己的产品进行更新换代。谁先开发出技术含量高、适销对路的新产品，谁就能先赢得更多的市场。面对竞争日益激烈的起重机市场，开发新一代汽车起重机成为各起重机生产厂的当务之急以齿轮泵作为动力源，采用液压先导比例控制，符合国情，既便于生产和采购，又降低了制造成本，有利于大批量组织生产。液压先导比例控制With the rapid development of the national economy, the domestic automobile market demand crane has also increased. To the crane manufacturing plant for more market share, in the constant upgrading of their products. Whoever developed high technological content, marketable new products, which will be able to win more market? Faced with the crane in an increasingly competitive market, to develop a new generation of the crane truck crane to become the top priority production plant ??? Walk-mainly small hydraulic crane operating system, electrical control system and hydraulic control system consists of three parts. As a car chassis will be working platforms, electrical, hydraulic systems and are installed on the crane above, by a remote control device to control the motor, the hydraulic pump through the motor control and thus control the speed of hydraulic motors and hydraulic cylinder piston speed To achieve the required action. ?? Small walk-in hydraulic gear pump as a power source, the pilot of a hydraulic control, in line with national conditions, both for production and procurement, and lower manufacturing costs and is conducive to high-volume production. Key words： Crane；Walking style；Hydraulic；Small；hydraulic control of the pilot.  目 录 第 1 章 绪 论 2 1.1 现代制造系统物流技术 2 1.2 现代物流的发展方向 3 1.3 现代生产物流的特点 4 1.3.1 现代化的物流设备 4 1.3.2 计算机管理 4 1.3.3 系统和集成化 5 第 2 章 工作原理及圆形机构 6 2.1 系统工作原理及方案的确定 6 2.2 有轨小车运行机构计算 6 2.2.1 确定机构运行方案 6 2.2.2 车轮与轨道并验算其强度 6 2.2.3 选电动机验算电动机发热条件 9 2.2.4 选择减速器验算运行速度和实际所需功率 9 2.2.5 选择制动器 12 2.2.6 浮动轴设计 13 第3章 回转运行机构的计算 15 3.1确定回转机构的总体方案 15 3.2轨道直径和中心枢轴计算 15 3.3选定工业车轮 16 第4章 齿轮传动设计 17 4.1选定齿轮类型