环形分布式邮件分拣机输送系统设计+CAD图纸
毕业论文关键词：自动分拣，输送系统
ABSTRACT
Every-day, the postal sorting systems diffuse several tons of mails. It is noted that the principal origin of mail rejection is related to the failure of
address-block localization task, particularly, of the physical layout segmentation stage. The bottom-up and top-down segmentation methods bring different knowledge that should not be ignored when we need to increase the robustness. Hybrid methods combine the two strategies in order to take advantages of one strategy to the detriment of other. Starting from these remarks, our proposal makes use of a hybrid segmentation strategy more adapted to the postal
mails. The high level stages are based on the hierarchical graphs coloring, allowing managing through a pyramidal data organization, the complex rules leading the interpretation of the connected components decomposition of interest zones. Today, no other work in this context has make use of the powerfulness of this tool. The performance evaluation of our approach was tested on a corpus of 10000 envelope images. The processing times and the rejection rate were considerably reduced.
KEYWORDS: automatically sorting, parcel transporting system
目 录
1，绪论 1
1.1 分拣机的发展 1
1.2 研究背景 2
1.3 分拣机的组成 3
1.4 本次课题任务和要求 4
2，分拣机的总体设计 4
2.1 总体方案 4
2.1.1 分拣机控制系统 5
2.1.2 上包系统 5
2.1.3 格口 5
2.1.4 设计初始参数 6
3，电器部分的选择 7
3.1 电机的选择 7
3.2 变频器的选择 8
3.3 连接 11
4，导轨部分的设计 13
5，链传送部分的设计 13
5.1 链条设计 13
5.2 联轴器的选择 15
5.3 联轴器和链轮之间的轴 15
5.4链轮设计 15
5.5链轮轴上的键设计 16
6，小车部分的设计 18
6.1 小车上的锥齿轮设计 18
6.2齿轮轴设计 20
6.2.1 主动齿轮轴的设计 20
6.2.2 从动齿轮轴的设计 21
6.3 小车的整体结构设计 21
7，行走轮的设计 22
8，小车与链条的连接设计 24
9，小车与交叉带的连接设计 24
10,分拣装置的设计 25
11，感谢词 27
12，参考资料 28
13，附录 28
1，绪 论
1.1 分拣机的发展
我国的分拣技术从1958年在邮政系统开始起步。60年代. 邮政局中包裹邮件分拣中使用最初的分拣机只是一个皮带传输机, 分拣员只是将带有不同颜色的夹子夹在不同路 向的邮包上, 在传输带两侧的拣收人员按着颜色挑选进行分拣。这样的分拣方法效率低，随着社会的进步，已不能满足生产力的需要。