设计的目的与意义 ................................................................................................... 6 国内外发展现状 ....................................................................................................... 6
rice, wheat and other crops from Jan axial efficient machine, it has a rack, rack security have thresher, thresher, including shell and slip cover Valley board, security in the shell are covered with nails and teeth type roller grid format configuration screen, intaglio, thresher materials below to open the mouth in the materials I have Yang Department under the security field machines, threshing machines and Jan field of transmission and transmission Alliance, which is characterized by Yang from the existing machine data on relevant parameters, to do some reasonable parameters, but also on other machines from Jan to improve performance and achieve axial plane from Jan greatly enhance the production efficiency, off the net rate of more than 99% loss rate of entrainment of not more than 1% loss rate is not more than broken 0.5% less debris and broken.
关键词： 脱粒机
滚筒
凹板筛
扬场机
生产效率
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本科毕业设计（论文）通过答辩
Young axial-flow machine working parts from the design
Abstract:
This design is suitable for dealing with a practical cleaning threshing
本科毕业设计（论文）通过答辩
摘
要
本设计的实用型涉及一种适于脱粒清选稻、麦等多种农作物的高效轴流式脱 扬机，它具有机架，机架上安有脱粒机，脱粒机包括有壳盖和底板，在盖板内安 有钉齿式滚筒并配置栅格式凹板筛，脱粒机下方开设物料口，在物料口处下方安 有扬场机， 脱粒机和扬场机与传动变速装置相联，其特点是在已有的脱扬机的相 关参数数据上，做一些合理的参数选择，还对脱扬机的其它性能进行了改进，实 现轴流式脱扬机的生产效率大大提高， 脱净率达 99%以上， 夹带损失率不超过 1%， 破碎率不大于 0.5%且打碎的杂物较少。
Key words:
Thresher
Drum
Intaglio sieve
Jan Field Airport
Production efficiency
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本科毕业设计（论文）通过答辩

3
本科毕业设计（论文）通过答辩
目
1.1 1.2
录
1 绪 论 ........................................................................................................................................ 6
2 轴流式脱扬机的总体方案设计及工作原理 ...................................................... 8
2.1 总体方案的选择.......................................................................................................... 8 2.2 总体结构 ....................................................................................................................... 8 2.3 工作原理 ....................................................................................................................... 9
1.2.1 国外发展现状 ....................................................................................................... 6 1.2.2 国内发展现状 ....................................................................................................... 7
3 电动机的选择 ..................................................................................................................... 9