设计描述：

文档包括:
word说明书一份，共29页，约13000字

CAD版本图纸，共9张

柠条联合收割机压扁及切碎装置的设计
目  录
1  绪论 1
1.1课题的提出和意义 1
1.2国内外研究现状 1
1.3本文的研究内容及方法 2
2  技术任务书(JR) 3
3  设计计算说明书(SS) 3
3.1传动方案的确定 3
3.2传动皮带轮的设计计算 5
3.2.1减速箱主动轴传出的皮带轮组 5
3.2.2滚筒到减速轴的皮带轮组 6
3.2.3减速轴到压扁输送辊的皮带轮组 7
3.2.4减速器从动轴到拨禾链齿轮箱的带轮组 7
3.3切割器的选择 8
3.4拨禾装置的设计 9
3.5夹持输送装置的设计 9
3.6立辊式柠条压扁输送装置的设计 10
3.6.1压扁输送辊的整体设计 10
3.6.2压扁输送辊的长度设计 10
3.6.3压扁输送辊材料的选择 13
3.7 立式茎秆切碎装置的设计 13
3.7.1滚筒式切碎刀的设计 14
3.7.2平板动刀刃口线的形成 14
3.7.3刀片安装前倾角 的确定 15
3.7.4扭转角 的确定 17
3.7.5平板刀尺寸设计 17
3.7.6茎秆切碎长度的计算 18
3.8 收集料斗的设计 18
4  使用说明书(SM) 19
5  标准化审核报告（BS） 19
5.1  产品图样的审查 19
5.2  产品技术文件的审查 20
5.3  标准件的使用情况 20
5.4  审查结论 20
结论 21
参考文献 22
致谢 23

          毕业设计说明书中文摘要

柠条联合收割机压扁及切碎装置的设计
摘要：柠条是豆科锦鸡儿属的一个种,多年生长灌木植物，柠条抗旱、抗寒、耐瘠薄、耐风沙、具有极强的生命力和抗逆性。鉴于柠条独特的生物特性，多年来它一直是内蒙古西部及山西西北部和陕西、甘肃等防风固沙、防止水土流失的重要选用植物。全国柠条种植面积已达到666.66万hm2 ，仅山西大同市柠条种植面积达到2万hm2 。柠条含有丰富的蛋白质，开花期鲜柠条干物质含粗蛋白14%，粗脂肪3.5%，粗纤维39.3%，无氮浸出物31.3%，粗灰分5.4%。由此可见，柠条还是优良的经济饲料。然而由于种植柠条的地区都是生态状况较差的地区，这类地区实行了严格的禁牧舍饲圈养后，使柠条的经济价值很难体现。为了使柠条的饲用价值得到体现，可以对符合标准的柠条进行平茬作业，再进行后续加工，生产出的产品可以添加到饲料中去。但是柠条难收割这个问题在农用机械制造领域已经成为共识，现有的平茬机械切割效果差，柠条被切割后直接凌乱的散落在地里。这些机械的适应性差，很多地方还是需要人工砍切收割。由于柠条茎秆木质化较高，而且茎秆上多硬刺，人工砍割和收集都非常不容易，收割效率极低而且效果非常差。
为了解决这一难题，使柠条经济价值得到更好的体现，满足广大柠条种植地区的要求，本文设计了一种柠条的联合收割机械。这款联合收割机采用65马力柴油机，首先采用链式拨禾装置把柠条拨入收割台，采用了往复式切割器对柠条进行切割，然后通过加持链条送入立式压扁输送辊系统进行压扁及输送，随后送入立式滚筒切碎系统对柠条进行切碎，切碎的柠条最终掉入滚筒下的集料箱实现茎秆的收集，实现了柠条的联合收割。
整个机构中，压扁输送辊和滚筒切碎装置本次设计的重点，两部分均采用立式安装，使整体机构变的紧凑，节省了空间，与前面的往复式切割系统能够很好的配合。此柠条联合收割机的设计为柠条的联合收割提出了新的方式，为后续的设计和研究提供了一个较好的方向。

其主要特点：1.联合化程度高。
            2.对收割后的柠条进行了粗加工，方便后续的加工处理。

关键词：柠条 联合收割机 压扁辊 滚筒切碎刀

Combine harvester of Korshinsk Peashrub
Abstract
Korshinsk Peashrub is one of the species of Leguminosae Caragana Fabr which is a king of perennial shrub, drought-resistant, cold-resistant, widely and dusty-resistant, strong vitality and Inverse-resistance. In view of the particular biological nature of Korshinsk Peashrub, it straightly grown in the west inner Mongolia, the northwest of Shanxi, Shaanxi and Gansu and it played an significant role of defending the breeze sand and keep water and soil, the total planting areas in the whole country is up to 66,666,600,000 hm2, , the planting area of  Datong is already up to 200 thousand hm2,. Korshinsk Peashrub is rich in protain, in the time of anthesis, the fresh Korshinsk Peashrub contains 14% simple protein, 3.5% simple fat, 33.9% coarse fibre,31.3%nitrogen free eotrant,5.4% ash. Thus from this point, Korshinsk Peashrub is also a fine economic feed. Owning to the grown latitude of the Korshinsk Peashrub is at the area with bad ecosystem. After being carried out the Captive feeding ban, it is difficult to achieve the economic value.
  By way of incarnate the feeding value of Korshinsk Peashrub，we ping stubbles to the measured up and with the followed-up processing ,append into the feeding stuff finally, that Korshinsk Peashrub is difficult to reap has become a consensus in the manufacture of agriculture machinery zone. The existing mechanical cutting effect of ping stubble is poor and the cutting shrub falls under the earth directly. Those machines have bad adaptability and need to reap by manpower because of the  Korshinsk Peashrub had high level of lignifications and much hard stem thorns, it is difficult to reap and collect by manpower .As a result the inefficient of harvesting and very poor effect.
In order to solve this problem that make a better economic value of Korshinsk Peashrub, content the requirement of Korshinsk Peashrub planting areas, this paper project a machine of Korshinsk Peashrub Combined Harvester use 65-horsepower diesel engine and first use the chain collection conveyer device to push the Korshinsk Peashrub into the harvest; use the reciprocating cutter to cue the Korshinsk Peashrub; then through the chain conveyer into the vertical flatting and conveyer machine; send into the reciprocating tumbling-box cutting part to cut up the Korshinsk Peashrub; the cut Korshinsk Peashrub falls into the container box under the tumbling-box, eventually achieve the collection of the stem and combined-harvest. The flattened-sending roll and the cylinder cutter are installed in three-dimensional way which not only can make the whole contract well-knit but also can save the space; furthermore, it can be fully coordinated with the reciprocating cutting system. The designing of this Korshinsk Peashrub Combined Harvester not only promote a new way of combined-harvesting but also start a direction on the follow up study and research on the designing.
Features: 1. The high degree of combination.
2. This machine has done the rough cut of the reaped Korshinsk Peashrub which is convenient for the follow up processing.

Keywords: Korshinsk Peashrub  Combin  flattened roll  cylinder cutter