联轴器课程设计.doc

目 录 1.零件简介····················································2 2.基本结构参数及技术要求·······························3 3.生产方式及条件···········································3 4.铸造工艺方案··············································3 4.1 浇铸位置和分型面··········································3 4.2 确定工艺参数···············································3 4.3 造型和造芯·················································4 5.浇铸系统的设计············································7 5.1 浇铸系统类型··············································7 5.2 确定内浇道相关参数·······································8 5.3 确定直浇道的位置和高度···································8 5.4 浇铸时间及金属液的上升速度······························8 5.5 浇口比及各组员截面积·····································9 5.6 浇铸系统图示·············································10 6.冒口的设计·················································10 6.1 铸件冒口补缩设计原理····································10 6.2 冒口相关参数的计算······································10 6.3 冒口的设置···············································11 6.4 校核冒口数目·············································11 7.冷铁的设计·················································11 7.1 冷铁的设置部位···········································11 7.2 冷铁材料的选择···········································11 7.3 冷铁厚度的确定···········································11 8.设计心得····················································14 9.参考文献····················································15 零件简介 连轴器是机械产品中一种常用的部件，用来连接两轴或轴和回转件，并在传递运动和动力过程中，一同回转而不脱开也不改变转动方向和扭矩大小。连轴器分为十字联轴器、夹壳联轴器、万向联轴器、柱销联轴器、梅花联轴器、星形联轴器、弹性联轴器等。 由于制造和安装不可能绝对精确，以及工作受载时基础、机架和其它部件的弹性变形与温差变形，联轴器所联接的两轴线不可避免的要产生相对偏移被联两轴可能出现的相对偏移有： 轴向偏移图a）、径向偏移图b）和角向偏移图c），以及三种偏移同时出现的组合偏移d） 两轴相对偏移的出现，将在轴、轴承和联轴器上引起附加载荷，甚至出现剧烈振动。因此，联轴器还应具有一定的补偿两轴偏移的能力，以消除或降低被联两轴相对偏移引起的附加载荷，改善传动性能，延长机器寿命。为了减少机械传动系统的振动、降低冲击尖峰载荷，联轴器还应具有一定的缓冲减震性能。 ，底座外圆： ，通孔： ，螺栓孔： 。 质量：铸件质量为53.34kg。 其他要求：铸件要求硬度均匀，不能存在任何铸造缺陷（铸件各表面均需机械加工），铸件需经过人工时效处理。 生产方式及条件 大批量生产；自硬树脂砂，手工造型和制芯；冲天炉熔炼；铸造所达到的公差等级为CT11~13。 铸造工艺方案 1.浇铸