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说明书一份，27页，约17000字

CAD版本图纸，共18张
目    录

摘要.................................................................1
关键词.................................................................1
1  前言...................................................................2
1.1  引言..............................................................2
1.2  目的及意义........................................................2
2  总体及外观设计.........................................................3
2.1  设计思想..........................................................3
2.2  粉碎机的总体设计..................................................3
2.3  粉碎机的外观设计..................................................4
3  零件及机械结构设计.....................................................4
3.1  电动机的选择......................................................4
3.2  机座的设计........................................................5
3.3  料杯的设计........................................................6
3.4  机罩的设计........................................................8
3.5  刀具盖的设计......................................................8
3.6  料杯盖的设计.....................................................10
3.7  滤网及隔离罩的设计...............................................11
3.8  电动机伸出端联接轴设计...........................................12
3.9  刀具联接轴的设计.................................................13
    3.9.1选择轴的材料.................................................13
       3.9.2 初定刀具联接轴的最小直径....................................13
       3.9.3 轴的结构设计................................................14
    3.9.4 根据轴所受的外力偶矩画扭矩图................................15
       3.9.5 按扭转强度条件校核轴的强度..................................16
3.10刀具的设计........................................................16
3.11螺母的设计....................................................... 18
3.12密封圈的选择..................................................... 19
4  控制电路的设计及其电气元件的选择......................................19
4.1 控制电路的设计....................................................19
4.2电气元件的选择.....................................................20
4.2.1电源引入开关SP............................................. .20
4.2.2过热保护开关ST............................................ ..21
4.2.3滤波电容.....................................................21
5 总  结.................................................................21
参考文献.................................................................21
致  谢...................................................................22

家用食品粉碎机的设计
                                 

    摘要：目前，国内消费市场中“家用食品粉碎机”频频上市，散发出诱人的魅力，展示着亮丽的市场前景。业内人士认为，“家用食品粉碎机”市场消费面宽，功能新颖独特，它将成为家庭生活的“好伴侣”。本文主要论述了“家用食品粉碎机”的机械结构、外观及控制电路设计。
在这次设计过程中，首先收集了大量的资料，然后对粉碎机的外观特征进行了构思。家用食品粉碎机主要由机座、刀具、料杯几部分组成。刀具由机座内的电机直接带动，既节省了空间，又提高了效率。料杯杯体与机座容易拆卸便于存放，刀具可以方便的交替使用，既避免了卫生死角，又能方便快捷的清洗。在控制电路的设计方面采用了安全触碰压紧开关，使其更具人性化，对人体更多一层保护。在材料的选择上，大量采用了PC及PVC复合材料，使粉碎机的强度有所提高，并使其重量大大减轻。家用食品粉碎机可以调制果汁、奶昔、豆浆，研磨粉碎食物，绞肉等，功能强大，用途广泛！
关键词：家用食品粉碎机；机械结构；外观；控制电路

THE DESIGN OF HOUSEHOLD FOOD GRINDER
                              
Abstract：Now, the domestic consumes the market inside" the household-use food smashes appliance" appear on market again and again, Send forth an attractive magic power, display the bright market foreground. The industry insider thinks," the household-use food smashes appliance " the market consumes the breadth, the function is novel and special, it will become the " good companion" of the home life. This text discussed primarily" the household-use food smashes appliance " of machine construction, external appearance and control electric circuit design.In this design process, first I collected the massive materials, then carried on the idea of the outward appearance characteristic of the grinder. The homehold-use food smashes appliance is mainly composed by the base, the cutting tool,and the material cup . The cutting tool is impetused by the moter in the base directly, both saved the space, and enhanced the efficiency. The material cup and the base can be easily disassembled for depositing conve- niencely, the cutting tools may be used in turn, both has avoided the hygienic dead angle, and can be cleaned quickly.Increased in the control circuit design aspect has moved safely contracts the switch, caused it to have the user friendly, were more to the human body and the electric motor a protection. In the materials, I used PC and the PVC compound materials massively, enable the grinder the intensity to have the enhancement, and to reduce its weight greatly. The homehold-use food smashes appliance may modulate the fruit juice, the milk shake, the soybean milk, attrition smashing food, twists the meat, the function is formidable, versatility!
Key words: Household-use food smashes appliance；Machine construction；External appearance；Control electric circuit