4lz-6型谷子联合收获机振动筛的设计含7张CAD图

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中文摘要

4lz-6型谷子联合收获机振动筛的设计
摘要
谷子机械化收获程度较低，一直是制约谷子生产发展的瓶颈。该研究设计了4LZ-6型谷子联合收获机振动筛。针对谷子的筛选确定该机器清选装置的总体方案，并对筛体各个部件进行了设计，确定了其重要运动参数。该机构通过用电机带动激振器作为动力来源，其中电机的输入功率为22kw；振动筛采用三层筛网结构，筛网形式有鱼鳞网和网格网，结合谷子的特点设计网格大小从而达到降低含杂率与提高筛选效率的性能。喂入量指标为6kg/s，生产率0.5h，含杂率为1.6%~1.8% 。
本次设计是针对谷子联合收获机清选装置进行的改进优化，功率消耗和可靠性也直接影响到整机的性能。如果一方面能够完成对振动筛机构的深入分析研究，进而对产品进行优化设计，提高性能；另一方面能够学习利用先进设计理念，采用先进设计手段，解决传统设计方式不能很好解决的问题，将是非常有实际意义的事情。本课题的研究意义就在于此。

关键词：谷子收获机；振动筛；运动参数

英文摘要

Design of vibrating screen for 4lz-6 millet combine harvester
Abstract
The low harvest degree of millet mechanization has been the bottleneck of restricting the development of millet production. In this paper, the vibrating screen of 4lz-6 millet combine harvester is designed. The overall scheme of the cleaning device of the machine is determined according to the screening of millet, and the design of each part of the screen body is carried out, and its important motion parameters are determined. The mechanism uses the motor to drive the vibration exciter as the power source . The input power of the motor is 22kw . The vibrating screen adopts a three-layer screen structure. There are two types of screen: scale net and mesh net. According to the characteristics of millet, the grid size is designed to reduce the impurity content and improve the screening efficiency. The feeding rate is 6kg / s, the working efficiency is, and the impurity content is 0.5h .
This design is aimed at the improvement and optimization of cleaning device of millet combine harvester, power consumption and reliability also directly affect the performance of the whole machine. If on the one hand can complete the in-depth analysis and research of the vibrating screen mechanism, and then optimize the design of the product, improve the performance and on the other hand, they can learn to use advanced design concepts and adopt advanced design methods to solve the problems that traditional design methods can not solve. It's going to be very practical.
Keywords：Millet harvester, Vibration sieve , Motion parameters

目录
1绪论
1.1研究背景
1.2国内外技术发展3
1.2国外技术发展3
1.2.2国内技术发展4
1.3主要研究内容和方法
2技术任务书(JR) 6
2.1技术方案6
2.2结构的工作原理
3振动筛方案设计
3.1激振器
3.2筛面及其固定装置9
3.3支承装置10
4物料运动分析及相关参数
5物料运动速度以及生产率15
6隔振弹簧的确定
7参振质量的计算21
8电机功率的计算和选择22
9激振器轴的设计24
10激振器长轴的校核25
6总结31
参考文献32
致谢33

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