小型玉米剥皮机结构设计【优秀机械毕业设计】【word+CAD图纸全套】
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小型
玉米
剥皮
结构设计
优秀
优良
机械
毕业设计
word
cad
图纸
全套
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您若下载本次文件，将获得（CAD图纸+word文档）源文件哦！
以下为本次文件的目录及部分图纸截图
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目 录
第一章 绪论1
1.1课题研究的目的意义1
1.2国内外研究状况1
1.3设计内容2
1.4课题的特点2
第二章 轴承的检测4
2.1 轴承的基本结构4
2.2 轴承检测的内容和检测条件5
2.2.1轴承检测的内容5
2.2.2轴承检测的内容和检测条件5
2.3 测量用电涡流式传感器7
第三章 微型轴承外环外圆直径自动检测线设计8
3.1 内容简介8
3.2总体方案的确定8
3.2.1方案选择8
3.2.2设计要求10
3.2.3总体布局的确定10
3.2.4各个联系尺寸的确定10
3.2.5输送线工作循环周期11
第四章 输送机设计13
4.1 带式输送机简介13
4.1.1输送机的发展13
4.1.2输送机工作原理13
4.1.3带式输送机的优点14
4.2 输送机各部分的设计计算14
4.4.1输送机的设计参数14
4.4.2机架的设计14
4.4.3 带的选择15
4.4.4 驱动装置的设计及计算16
4.4.5 拉紧装置的选择设计19
4.4.6滚筒设计19
第五章 上料装置的设计23
5.1概述23
5.2上料装置的设计23
5.2.1电动机的选择23
5.2.2轴的选择计算23
5.2.3齿轮的设计计算24
5.2.4各部分零件的校核26
第六章 机械手的设计32
6.1 概述32
6.2基本尺寸的确定32
6.3液压缸结构的设计34
6.4.1 主要部件结构选择34
6.4.2液压缸主要尺寸的确定35
6.4.3 各部件的联接结构设计37
总结39
致谢40
参考文献41
- 内容简介：
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Our countrys corn skinning mechanization and general machines and development direction 【 Abstract】 Pick to develop the important significance of corn sheller, describes the development situation of corn sheller abroad, puts forward the existing problems, and the hair of corn skinning machinesExhibition direction were discussed. 1 solution cob skins the corn question is corn harvest work key the corn is one of five big grain crops. Our country corn plants total the area altogether 24,500,000 hectares, approximately composes nation grain crops sown area 25%; The year ultimate output amounts to about 1 2,700,000,000 tons, approximately composes national grain the food ultimate output 27%. At present our country has formed three big corn to produce the area; first, the north corn area, including Northeast three provinces, Inner Mongolia, north river the area and so on, the sown area approximately composes the nation 40%; Second, Huanghuai the even corn area, including places such as Shandong, Henan, Jiangsu, sows seeds the area to approximately compose the nation 25%; Third, the southwest hill corn area, wraps to include areas and so on Yunnan, Guizhou, the sown area approximately composes national 15%. If according to 50% machine receiving rate computation, the nation needs the corn to harvest above machine 100,000. But the realistic situation is our country jade rice hulling machine receiving rate not to 2%, is lower than wheat 70% and the paddy rice by far 20% machine receives water to be even. In our country corn production process, plows, the rake, to broadcast, tube to realize the mechanization or the semimechanized work generally, has perfect the many kinds of model machines and tools, but the mechanized harvest question not yet solves to decide until now. Developed countrys corn harvest work already realizes the mechanization, the its application machines and tools is mainly the corn combine or large-scale grain the combine matches the corn special-purpose header, disposable completes harvests, to pick Guangzhou, to skin, to choose the cob work clear. Because our country corn big has the peasant household to plant the management voluntarily most certainly, the land management is not centralized, agricultural household purchase ability is limited, the large-scale combine in quite long in the section time has not been able the big area promotion application. 2 Overseas corn barker development survey In the world the developed country has already realized the corn harvest mechanization, the US started since 1936 to promote the mechanized harvest corn, has the nine big companies to produce 42 kind of models the corn to pick Guangzhou, to skin receives to shear jointly machine. In the 60s develops the grain combine to use judgment vigorously corn the header in the field direct harvest corn kernel. Therefore, does not have special-purpose jade the rice to skin. The former USSR starts from the 50s to produce the corn harvester, the type picks Guangzhou, to skin, to choose the corn cob clear primarily. The Ukraine Kherson Harvester Factory productions KCKY-6 series corn unites a harvester only 19881998 during year ten year altogether to sell 1 40,000. this machine one time completes the cob to select, to skin, chooses, the load and straw clear the pole smashing and throws elects to the trailer work. This factory also has developed in recent years the CN-4 special-purpose corn barker, but does not have the official production. France and Eastern European country, also picks Guangzhou to skin corn harvester primarily. nts3 domestic corn barker development survey Our country starts from the 60s to develop the corn to skin the installment. 60th, in the 70s imitates the stage, in the 80s carried on the key component to attack the pass, in the 90s later greatly has developed. At present the corn barker has the two big types: One kind is installs corn on the corn combine to skin the installment, another kind is the independent corn barker. From necessary the power looked that the independent corn barker, some 0 7kW to 2 2kW the single phase machine, the 3kW three-phase machine and 8 8kW small size tractors hauls machine; Has skins the installment the corn combine to have 4YZ-4 (113kW), 4W-2 (42kW) and 4YZ-2 (13 2kW) the three types. the 60s, the Chinese farm machinery courtyard develops our country with the traditional part the first generation of 6YBS-2 corn barker. Its necessary power is the 3kW three-phase machine, the exhausted top roller is 4 pair of screws teeth cast irons ten spends the petal oak rubber roll. 4 corn barkers develop discussion Along with national economys development, the agriculture to the industrial production, intensive , the order form agriculture direction will develop is the inevitable trend, the corn planter manages the principle also more and more to move toward the big area centralized management, will use the corn to unite to gather the harvester disposable to complete harvests, picks Guangzhou, to skin, cob clear the principle, the cane also field work, will raise the efficiency, will reduce loses, will be one of jade rice harvest mechanization development efficient paths, looking from long views , this also will be the future corn harvest development inevitable way. Now the our country many place developments with 1218 horsepower tractor necessary the single line corn union harvester, the power are small, the disposition corn skins installs to set at the power to be insufficient. Large-scale 4 line of corn combine price is expensive, the limitation is big, has not been able to adapt in quite period of time the our country countryside present management scale. Develops 2050kW self-propelled the type 23 lines medium, the small corn harvester is feasible. 5 present domestic corn skin the machines and tools existence the question and the solution The corn unites the harvester to skin the equipment exhaustedly to lead only lowly, seed grain of
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