机械5

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 Desig
n of vibrati
ng scree
n for 4lz-6 millet combi
ne harvester Abstract The low harvest degree of millet mecha
nizatio
n has bee
n the bottle
neck of restricti
ng the developme
nt of millet productio
n. I
n this paper, the vibrati
ng scree
n of 4lz-6 millet combi
ne harvester is desig
ned. The overall scheme of the clea
ni
ng device of the machi
ne is determi
ned accordi
ng to the scree
ni
ng of millet, a
nd the desig
n of each part of the scree
n body is carried out, a
nd its importa
nt motio
n parameters are determi
ned. The mecha
nism uses the motor to drive the vibratio
n exciter as the power source . The i
nput power of the motor is 22kw . The vibrati
ng scree
n adopts a three-layer scree
n structure. There are two types of scree
n: scale
net a
nd mesh
net. Accordi
ng to the characteristics of millet, the grid size is desig
ned to reduce the impurity co
nte
nt a
nd improve the scree
ni
ng efficie
ncy. The feedi
ng rate is 6kg / s, the worki
ng efficie
ncy is, a
nd the impurity co
nte
nt is 0.5h . This desig
n is aimed at the improveme
nt a
nd optimizatio
n of clea
ni
ng device of millet combi
ne harvester, power co
nsumptio
n a
nd reliability also directly affect the performa
nce of the whole machi
ne. If o
n the o
ne ha
nd ca
n complete the i
n-depth a
nalysis a
nd research of the vibrati
ng scree
n mecha
nism, a
nd the
n optimize the desig
n of the product, improve the performa
nce a
nd o
n the other ha
nd, they ca
n lear
n to use adva
nced desig
n co
ncepts a
nd adopt adva
nced desig
n methods to solve the problems that traditio
nal desig
n methods ca
n
not solve. It's goi
ng to be very practical. Keywords：Millet harvester, Vibratio
n sieve , Motio
n 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