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1、摘 要为了能减轻农民的劳动强度，降低生产成本和减少环境污染，提高农产品的质量，安全和效益，并且能增加农民的人均收入，近年来我国正在逐步增加对农业机械的投入与研究。虽然农机行业有了不小的发展，但还未达到农业机械化的要求。圆筒清理筛是经过实地考察和相关数据统计进行设计的，粮食加工过程包括去皮、分级、清理以及一系列的后续工作，其中清理这一块非常重要，圆筒清理筛就是专门负责这一环节的。圆筒清理筛是由六大部分组成：机架、喂料装置、筛筒、清筛机构、输送装置和传动机构。圆筒清理筛的设计主要是对它机架的设计，筛筒以及筛网的设计，还有传动机构部分的设计校核等计算。完成对圆筒清理筛的设计后可以使之工作效率更高，去
2、除杂物更彻底，降低噪声，维修操作更方便，更节能。关键词：圆筒清理筛;机械化;筛筒IAbstract In order to alleviate the farmers labor intensity, lower production costs and reduce environmental pollution, Improve agricultural product quality, safety and efficiency, And will increase farmers per ca-pita income, In recent years is gradually incr
3、easing investm-ent in agricultural machinery and research in China. Although the development of the agricultural machinery industry has a lot, but still does not meet the requirements of agricultural mechanization.Cylinder cleaning sieve is a design field and the related data and statistics, Food pr
4、ocessing procedure includes peeling, grading, cl-eaning, and a series of follow-up，Clean up this very important c-leaning sieve is responsible for this part of the cylinder. Cylinder cleaning sieve is composed of six parts: frame and feeding device, cylindrical screen, clear screen body, conveying d
5、e-vice and drive mechanism.Cylinder cleaning sieve is mainly on it-s rack design, cylindrical screen and screen design, calculation, s-uch as a drive mechanism part of the calculations.Upon completion of the design of the cylinder cleaning sieve can make work m-ore efficient, removes debris more com
6、pletely, reducing noise, ma-int-enance operations easier, more energy-efficient.Key words: Circular; Mechanized cleaning; Cylinde.II目 录摘 要IAbstractII第1章 绪论11.1 研究的目的和意义11.1.1 研究的目的11.1.2 研究的意义11.2 国内外发展现状21.2.1 国外发展现状21.2.2 国内的发展现状31.2.3 未来的发展趋势41.3圆筒清理筛的基本结构与工作原理4第2章 总体方案的设计72.1 方案设计72.2 方案的选择92.3
7、主要部件的结构设计92.3.1 机架92.3.2 喂料装置92.3.3 粗杂筛筒和细杂筛筒102.3.4 清筛装置112.3.5 输送装置112.3.6 传动系统12第3章 传动部分的设计及计算143.1 筛筒的极限转速143.2 电动机的选择和传动比的计算153.2.1 计算圆筒筛的驱动功率153.2.2 电动机功率的确定173.2.3 传动比的确定183.3 V带的计算与校核183.3.1 设计功率183.3.2 带型确定193.3.3 传动比193.3.4 小带轮基准直径203.3.5 带速203.3.6 初定中心距203.3.7 基准长度203.3.8 实际中心距213.3.9 小带轮
8、包角213.3.10 V带根数213.3.11 单根V带初张紧力223.3.12 作用在轴上的力223.4 半轴的计算与校核233.4.1 半轴的设计计算233.4.2 半轴的校核计算243.4.3 键槽的校核26 3.5 减速器的选择与计算.273.6 风机的选择计算283.6.1 风量的计算283.6.2 风压的计算283.7 轴承的选择校核32第4章 圆筒清理筛的使用与维修354.1 圆筒清理筛的使用354.1.1 安装与调试354.1.2 使用与操作354.2 圆筒清理筛的维修36结 论38致 谢39参考文献40CONTENESAbstractIIChapter 1 Introduct
9、ion1 1.1 The purpose and significance of the study1 1.1.1 The purpose of the study1 1.1.2 Significance of the study1 1.2 Development situation of domestic and foreign 2 1.2.1 Abroad development situation2 1.2.2 Development status of domestic3 1.2.3 The future development trend 4 1.3 Basic structure
10、and working principle of the cylinder4Chapter 2 Design of overall scheme of 7 2.1 Programme design7 2.2 The choice of9 2.3 Structural design of main components9 2.3.1 Rack 9 2.3.2 Feeding device 9 2.3.3 Coarse sieve drum screens and fine hybrid tube 10 2.3.4 Cleaning devices11 2.3.5 Conveying equipm
11、ent 11 2.3.6 Transmission system 12Chapter 3 Design and calculation of transmission parts14 3.1 Sieve tube of the speed limit14 3.2 Motor selection and calculation of transmission ratio15 3.2.1 Driving power of calculation of cylinder screen 15 3.2.2 Determination of motor power17 3.2.3 Determine th
12、e ratio of 18 3.3 V-belt calculation and check of 18 3.3.1 Design power18 3.3.2 Design power19 3.3.3 Transmission ratio19 3.3.4 Small Datum of the pulley diameter20 3.3.5 Belt speed20 3.3.6 Center distance20 3.3.7 Base length20 3.3.8 The actual Center distance 21 3.3.9 Small round angle21 3.3.10 V-b
13、elt21 3.3.11 Single v-belt tension22 3.3.12 The force acting on the shaft22 3.4 Half shaft calculation and check of 23 3.4.1 Design and calculation ofsemiaxis23 3.4.2 Calculation ofsemiaxis24 3.4.3 Key check26 3.5 Selection and calculation of reducer27 3.6 Fan selection and calculation28 3.6.1 The calculation of air volume28 3.6.2 Wind pressurecalculation28 3.7 Checking the bearing selection32Chapter 4 Usage and maintenance of cylinder cleaning sieve35 4.1 Cylinder cleaning sieve35 4.1.1 Installation and commissioning 35 4.1.2 Use and operation35 4.2 Repair of cylinder cleaning sieve36
