摘要
红枣是大多数人尤其女性爱吃的食物,其对人体身体健康具有明显作用,而现代对红枣的加工引用了自动化技术,出现许多红枣去核切片机器,但其切制的红枣片厚度不均,枣肉破碎率高,枣核残留等问题,同时需要人员辅助运行,劳动强度高,自动化程度低,故急需更加智能、可靠的新型红枣去核切片机,红枣切片机可大大减轻劳动强度,生产效率高,使用省力,符合食品加工机械卫生标准要求。切割后成品表面光滑、不破坏组织。匀称,切割速度快,减少劳动成本。
本文通过机械结构的角度设计了红枣切片机集成,拥有红枣自动定向排序、夹紧去核、枣肉切片等功能,由辊筒输送链供料、采用槽轮结构间歇夹紧,;采用两排平行放置的链实现定位和夹紧;去核装置采用对心曲柄滑块机构来实现;采用刀具固定,刀槽式送料轮旋转实现切片。
本文设计的机器有序上料率大幅度提高,除去核和切片中意外的破碎率大大降低,设备结构简单,方向效果好,制造成本低,生产率高,适应性强。
关键词:红枣;间歇上料;去核;切片
Abstract
Red jujube is a favorite food for most people, especially women, and it plays an obvious role in human health. Modern processing of red jujube uses automation technology, and there are many red jujube enucleation and slicing machines. However, there are some problems such as uneven thickness of red jujube slices, high jujube meat crushing rate and jujube core residue. At the same time, it needs personnel to assist in operation, high labor intensity and low degree of automation, Therefore, there is an urgent need for a more intelligent and reliable new jujube enucleation slicer. The jujube slicer can greatly reduce labor intensity, have high production efficiency, save labor, and meet the requirements of the hygienic standard of food processing machinery. After cutting, the surface of the finished product is smooth and does not damage the tissue. Symmetrical, fast cutting speed and reduce labor cost.
In this paper, the integration of jujube slicer is designed from the perspective of mechanical structure. It has the functions of automatic directional sorting of jujube, clamping and de coring, jujube meat slicing, etc. it is fed by roller conveyor chain and clamped intermittently by grooved wheel structure,; Two parallel chains are used to realize positioning and clamping; The nuclear removal device is realized by centering crank slider mechanism; The cutter is fixed and the grooved feeding wheel rotates to realize slicing.
The machine designed in this paper has greatly improved the orderly feeding rate, greatly reduced the accidental crushing rate in removing cores and slices, simple equipment structure, good directional effect, low manufacturing cost, high productivity and strong adaptability.
Key words: Red dates; De core; Section; Intermittent feeding
目录
摘要I
Abstract II
第1章绪论- 1 -
1.1引言- 1 -
1.2研究目的及意义- 1 -
1.3国内外研究现状- 1 -
1.3.1国内研究现状- 1 -
1.3.2国外研究现状- 2 -
1.4本文研究的内容- 4 -
第2章总体方案设计- 5 -
2.1红枣去核切片存在的问题- 5 -
2.2总体结构- 5 -
2.3工作原理- 6 -
2.4主要技术参数- 7 -
第3章上料夹紧装置设计- 8 -
3.1上料装置- 8 -
3.2夹紧装置- 8 -
3.3链传动设计计算- 8 -
3.3.1滚子链的设计- 8 -
3.3.2链轮设计计算- 13 -
第4章去核装置设计- 16 -
4.1间歇运动机构- 16 -
4.2去核原理- 16 -
4.3去核机构设计- 16 -
4.4曲柄滑块机构设计- 17 -
4.4.1分类- 17 -
4.4.2动力学特性- 18 -
4.4.3运动学特性- 19 -
4.4.4设计计算- 20 -
第5章切片装置设计- 24 -
5.1结构与原理- 24 -
5.2零部件设计- 24 -
5.3各机构运动协调性分析- 24 -
第6章传动系统设计- 26 -
6.1动力传递路线图- 26 -
6.2带传动设计- 26 -
6.2.1电动机的选择- 26 -
6.2.2确定各级传动比- 26 -
6.2.3计算运动参数- 27 -
6.2.4带传动的设计- 28 -
6.2.5带轮的设计- 30 -
6.3锥齿轮传动- 31 -
6.4直齿轮传动- 34 -
6.5轴的计算和设计- 43 -
6.5.1轴一的设计- 43 -
6.5.2轴二的设计- 46 -
6.6滚子轴承的校核- 49 -
6.7键的校核- 50 -
6.7.1轴一键校核- 50 -
6.7.2轴二键校核- 50 -
结论- 51 -
参考文献- 52 -
致谢- 53 -
第1章绪论
1.1引言
中国是枣树的起源地。世界上98%以上的枣资源和枣制品都在中国。据国家林业局统计,目前我国枣树种植面积为150万Hm2,枣树年产量超过260万吨,其中包括河北省和山东省、山西等城市总量超过180万吨,河南省和广西占全国总产值的91%以上。红枣营养丰富,是一种很好的补品,鲜枣含水量约80%,代谢旺盛,采摘后易腐烂变质。鲜枣皮脆,容易被机器损坏。鲜枣贮藏运输困难,保质期短,突出了红枣加工的重要性。
1.2研究目的及意义
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