核桃脱壳机械毕业设计.doc

摘要
核桃具有很高营养价值,不论是在国内还是在国外都具有很广阔的市场空间,人们的需求量是很大的。我国是核桃生产大国,在加工中存在的问题是核桃脱壳比较困难,核桃取仁在我国历来靠手工,效率低,破壳效果差。人工剥壳难以满足生产发展的要求,研制高效剥壳机已成当务之急。经调研和分析,设计了滚刀栅网——挤压式核桃脱壳机。本文介绍了滚刀栅网——挤压破壳原理,核桃脱壳机的破壳装置、隔料装置、调间隙装置、拨料装置、整体结构设计及参数设计。其中主要包括总体方案的确定,各部件的设计与计算,轴的校核,轴承的验算。
关键词:滚刀栅网;核桃脱壳机;调间隙装置。
Abstract
Walnut has a high nutritional value and has a very large market space whether at home or abroad, people's demand is enormous. Walnut production in China is a big country in the processing problem is more difficult shelled walnut, walnut kernel in our country has always been taken by hand, low efficiency, poor broken shell. Artificial Sheller difficult to meet the requirements of the development of production, the development of efficient shelling machine has e imperative. Based on this proposed designed of Hob grid - extrusion type walnut shelling machine. This paper introduce hob grid -- extrusion shell breaking principle, and design of the broken shell walnut shelling machine device, every feeding device, adjust gap device, dial feeding device, the overall structural design and design parameters. Which mainly include the determination of the overall program, design and calculation of the ponents, check the shaft, the bearing checking, pletion of all the design and use of solid works software for the design of three-dimensional parts and assembly, final assembly and design drawings of the parts and so on.
Key words: Hob grid;walnut shelling machine;adjust gap device; solid works
目录
摘要 I
Abstract II
1 绪论 1
课题提出的背景 1
课题研究的目的和意义 2
核桃脱壳机械的发展 3
核桃脱壳机械的研究应用现状 9
目前核桃脱壳机采用的脱壳原理 10
新型脱壳技术 12
核桃脱壳机械的工艺研究 12
核桃脱壳机械存在的问题 13
核桃脱壳机械研究重点 13
提高核桃脱壳机械的通用性和适应性 14
提高机械脱壳率。降低破损率 14
向自动控制和自动化方向发展 14
核桃脱壳机械应用前景展望 15
2 刮板式核桃去壳机的结构及工作原理 17
挤压式核桃去壳机的结构 17
工作原理 18
3 刮板式核桃去壳机主要部件的结构设计 20
设计前各项参数的确定 20
滚刀的半径及转速初定 20
滚刀所需功率计算 21
传动方案拟定 22
电动机的选择 23
V带传动 24
结构设计 28
从动带轮的设计 2