手动式土豆类蔬菜切削机的设计

机械设计制造及其自动化论文，论文编号:JX1029  论文字数:12963.页数:36

 摘     要
 当大量的切削土豆类蔬菜时，手工切削需要耗费大量的人力，且难保证切的均匀一致，而且更重要的是还存在着人身安全问题。本设计就是针对上述问题展开的，它基于牛头刨床原理，利用滑块移动机构将手轮的旋转运动转变为往复切削运动，由刀具保证切片厚度，本机器具有简单、高效、安全的特点。
 刨床主运动机构采用具有急回作用的摆动导杆机构，手动摇动手轮一圈，刀具便做往复运动一次，操作简单方便。由于刀具刀片可设计成是双刃，往复运动一次，可切削蔬菜两次，效率较高。通过改变不同刀架，调整刀片之间的距离，可以改变切片的厚度。切削机体积不大，占地面积小，根据实际工作的需要可随时搬动。
 本论文主要完成了摆动导杆机构的运动学分析，设计了手动式土豆类蔬菜切削机整体机构及主要零部件。
 
 关键词：摆动导杆机构，切削，刀具
Abstract
 
 When the potatoes and other vegetables are sliced in a large quantity, the handicraft slices waste a great deal of manpower and it is difficult to make sure to slice even consistently. And more important it still exist the safe problem of Human body. This design is to launch to the above-mentioned problem, and it is based on cow-head  planer principle to make use of slippery movement structure and turn the movement of the hand gear from revolving to back and forth. Because the knife can keep slice’s thickness, this machine is characterized by simple, efficient and safe.
 The main movement structure of the planer is adopted by the pole structure which has the hasty return function. The operation is very simple. The hand gear is operated a round with the hand, then the cutter moves back and forth once, and the distance passed by is called a route of travel. Because the cutter is double blades structure, during a route of travel, the cutter can slice the vegetable twice, and the efficiency is higher. In the aspect of the knife, the distance between two blades can be adjusted to change the thickness of the slice. The Slice machine is tiny, and the room took up is small, and also it can move simply and conveniently at any time according to the demand of the actual work.
 The kinematics analysis of leader guide block device has mainly been finished in the paper. And the machine and its main parts have also been designed that can cut vegetables like potatoes.
 
 Keyword:   oscillating guide bar mechanism, slice, cutter
 目 录
 第一章  绪论 1
1.1前言 1
1.2本切削机设计的研究内容与基本原理 2
 第二章  机构方案的研究和选择 3
2.1引言 3
2.2牛头刨床的平面六杆机构运动研究 3
2.2.1 建立运动学方程 4
2.2.2 求解 5
2.3 多种常见摆动导杆相关机构运动平稳性研究 6
2.3.1 常见三种摆动导杆机构稳定性比较 6
2.3.2常见三种摆动导杆机构的传动性能比较 11
2.4 切削机结构初步设计 13
2.5本章小节 14
 第三章  切削机整体机构及各零件的设计 16
3.1现代机械设计方法概述 16
3.2手轮的设计与尺寸 17
3.3摇杆的设计 18
3.4连杆的设计与尺寸 18
3.5滑块的设计与尺寸 18
3.6刨头导槽的设计 19
3.7刨头导杆的设计 19
3.8整体支架的设计 20
3.9容器形状与尺寸的确定 21
3.10本章小节 22
 第四章 切削机整体机构运动分析与强度校核 24
4.1切削机构运动特性分析 24
4.2 用矩阵法对整体机构进行运动分析 24
4.3强度校核 26
4.4本章小节 27
 第五章 结论与展望 29
 参考文献 30
 致谢 31
 附 录 32