双柱式倾斜压力机的设计.doc

摘 要 用于对坯料进行成型加工的锻压机械。机械压力机动作平稳工作可靠广泛用于冲压、挤压、模锻和粉末冶金等工艺。Abstract The machine used for most cold-working operation is known as a press.It works steady and is widely used in many fields,such as forging and pressing. This design topic is the inclinable press. It consists of a machine frame supporting a bed and a ram, a source of power, and a mechanism to cause the ram to move in line with and at right angles to the bed. In the design process, by means of analyzing the ramming power, the flywheel power and the electric motor power are determined; every level of transmission ratios and the construction size are also determined by computer program. Having determined the system maximum work rate with computer program, it has carried on the external dimensions and the parameter computation to the band pulley and the gear mechanism. Having carried on the intensity, the rigidity examination to the slide crank mechanism, the mechanism design, the main axle and the hind axle size and the localization has been determined as well. Key words: Press; Power; Mechanism 目 录 摘 要 I Abstract II 第1章 绪论 1 1.1 设计的目的 1 1.2 设计的内容 1 1.3 设计要求和注意事项 1 1.3.1 设计要求 1 1.3.2 注意事项 2 1.4 传动方案的机构选型原则 2 1.5 传动装置的方案论证 3 1.6 执行机构方案论证 4 第2章 执行机构的设计计算及功率的确定 7 2.1 力、加速度及功率分析 7 2.2 电动机的选择 9 第3章 传动机构的设计及计算 12 3.1 带传动设计及计算 12 3.1.1 确定设计功率Pca 12 3.1.2 选择带型 12 3.1.3 确定带轮的基准直径dd1和dd2 12 3.2 带轮的设计 15 3.2.1 小带轮的设计 16 3.2.2 大带轮的设计 17 3.3 齿轮的设计计算 18 3.3.1 齿轮的类型、精度等级、材料和齿数 18 3.3.2 按齿面接触疲劳强度设计 19 3.3.3 按齿根弯曲疲劳强度的设计 21 3.3.4 几何尺寸计算 23 3.3.5 齿轮的结构设计 23 3.4 轴的设计 25 3.4.1 后轴的设计 25 3.4.2 曲轴的设计 28 第4章 轴承、机座及导轨的设计 30 4.1 轴承的设计 30 4.1.1 滚动轴承的选择及校核 30 4.1.2 曲轴两端滑动轴承的设计 31 4.2 机座的设计 33 4.2.1 机座材料的选择 33 4.2.2 机座设计的基本要求 33 4.2.3 肋的布置 33 4.2.4 连接结构设计 33 4.2.5 导轨的功用、分类和应满足的要求 34 4.2.6 直线滑动导轨的结构设计 34 结论............................................................................... 36 致谢....................... 37 参考文献 38  Content Abstract I Chapter 1 Introduction 1 1.1 Design purpo