PLC链条悬挂式调速输送系统设计+CAD图纸
毕业论文关键字：链条悬挂式；可编程控制器；变频器
ABSTRACT With the development of society, the rapid progress of science and technology, industrial modernization is gradually improved, the means of industrial transport is also more and more rich.In the process of automatic production, the transportation of material or product parts is an important link, which determines the production efficiency of the enterprise.Because each enterprise requires a different speed of transport, so the chain speed should be able to adjust and control.The design of the chain suspension conveying system mainly includes the load calculation, the selection of the motor and the connection between the input and output terminal of the programmable controller and the sensor and the transducer.The real-time control and adjustment of the transmission line speed can be realized by the reasonable connection of the sensor, the programmable controller and the frequency converter.
Key words:Chain suspension; Programmable logic controller; Frequency converter
目 录
第一章 绪论 1
1.1研究背景和意义 1
1.2发展趋势 1
1.3课题认识与总体方案设计 2
1.3.1任务要求 2
1.3.2设计系统总框图 2
第二章 机械结构设计 4
2.1悬挂链输送线 5
2.1.1悬挂链输送线分类 5
2.1.2悬挂链输送线选型 5
2.2悬挂输送链条 6
2.2.1悬挂链的分类 6
2.2.2悬挂链的选型 6
2.3架空轨道 7
2.3.1架空轨道的分类 7
2.3.2架空轨道的选型 7
2.4滑架与吊具 9
2.5驱动系统 10
2.5.1悬挂链输送线驱动装置介绍 10
2.5.2 电机的选择 10
2.5.3链轮与轴之间键的选取与校核 12
第三章 输送链控制系统设计 13
3.1运动过程分析 13
3.2检测装置 13
3.2.1旋转编码器 13
3.2.2光电传感器 14
3.3调速方法 15
3.3.1调速方法的选择 15
3.3.1变频器的选型 16
3.4控制器 16
3.4.1控制器的选择 16
3.4.2 PLC的选择 17
3.5硬件连接图 18
3.6控制系统软件设计 18
3.6.1程序流程图 18
3.6.2梯形图程序 19