自动排向机改造研究石墨舟仓结构（机械cad图纸）大学学位论文.doc

摘 要 中国的二极管生产企业起步很早，以至于很多企业里面的二极管生产设备比较陈旧。由于旧的设备生产效率低，废品率高，需要大量人工的原因，我们决定将对旧的二极管生产设备上进行一些自动化改造。主要的改造内容是将石墨舟的堆放和上料过程进行自动化改造，其中改造内容有：在空石墨舟的堆放处用机械手代替，通过气缸与机械手相结合的方式放置石墨舟；对石墨舟的堆放和上料下料的过程由石墨舟升降机构来进行完成，通过电动机带传动，皮带上的气手指拨动石墨舟堆，在上料和下料处各放置十个为一堆的石墨舟堆，由气爪抓取进行上料和下料；整个过程通过PLC进行电气控制，大大改进了生产效率以及减少了人工，使得企业在生产中获得更多的盈利。 关键词：排向机，二极管生产，自动化改造，PLC，石墨舟 ABSTRACT China’s diode production enterprise started early, that many enterprise inside of the diode production equipment is old. Because the old equipment production efficiency is slow, scrap rate is high, need a lot of artificial. We dicided to do some automation reconstruction to old diode production equipment. The main content of the reform is to pile up on the boat graphite and material process automation reconstruction, the transformation contents include: In the empty graphite boat with the dump instead of manipulator, throuth the cylinder and machinery of the combination of the palm placed graphite way up; The graphite stacked on the boat and the process of feeding material by graphite boat lifting mechanism to completed, throuth the motor belt, the gas fingers of the belt moving graphite boats, In feeding and discharging points under the place for a pile of ten of the graphite boats, they are grabed by gas claw; The whole process was controlled by the PLC , greatly improved the production efficiency and reduced labour, maked the enterprise gaining more profit in the production. Key words: rowing machine, diode, Automation reconstruction, PLC, graphite boat 目 录 摘 要 III ABSTRACT IV 1 绪 论 1 1.1研究内容 1 1.2 研究目标 3 1.3 关键问题 3 1.4 研究方法和技术路线 3 1.4.1 研究方法 3 1.4.2 技术路线 4 2. 石墨舟仓结构设计 5 2.1 旧排向机构造 5 2.2 石墨舟仓部分改造的初步想法 5 2.3 石墨舟仓改造方案确定 7 2.4 排向机改造的控制系统初步设计 8 3. 石墨舟仓结构各零件选用及设计 11 3.1 升降机构传动方式 11 3.2 带传动系统带和带轮的选择 13 3.2.1 电机额定输出功率估算 14 3.2.2 确定计算功率 14 3.2.3 小带轮转速计算 15 3.2.4 选定同步带带型和节距 15 3.2.5 选取主动轮齿数 16 3.2.6 小带轮节圆直径确定 16 3.2.7 大带轮相关数据确定 16 3.2.8 带速v的确定 16 3.2.9 初定轴间间距 16 3.2.10 同步带带长及其齿数确定