机械5

摘要:本本着节省材料、成本低廉、安全简易、效率高的原则，立足于水稻清选装置的设计与研制，完成的基本工作如下：通过对国内外技术调查取样分析，为装置关键部件和试验研究等层面提供了性能依据，在经过理论的指导合理的设计出机械装置的结构，设计了以套筒辊为主要工作部件的清选装置，来筛选谷物。本设计方案设计了套筒式眼辊筒，设计了套眼式分拣筒的直径，角速度和倾斜角，并设计和计算了所需的主要部件并检查参数，完成设备图纸和主要零件设计，主要设计包括有驱动设计，传动设计等，通过对各工作部件的设计,试制出机械装置，以求得最佳试验性能参数，进而对水稻清选装置的的性能作出优化设计。 关键词:套筒辊分拣筒驱动设计 Abstract: Based o
n the pri
nciples of savi
ng materials, low cost, simple safety, a
nd high efficie
ncy, this thesis is based o
n the desig
n a
nd developme
nt of a rice clea
ni
ng device. The basicwork completed is as follows: Through the sampli
ng a
nd a
nalysis of domestic a
nd foreig
n tech
nical surveys, it is a key compo
ne
nt of the device. The performa
nce basiswas provided at the levels of experime
nts a
nd research. The structure of the mecha
nical devicewas reaso
nably desig
ned after theoretical guida
nce, a
nd a clea
ni
ng devicewith sleeve rollers as the mai
nworki
ng compo
ne
ntwas desig
ned to scree
n the grai
n. This desig
n pla
n desig
ned the sleeve-type eye roller, desig
ned the diameter, a
ngularvelocity a
nd i
ncli
natio
n of the sleeve-type sorti
ng cyli
nder, a
nd desig
ned a
nd calculated the required mai
n compo
ne
nts a
nd checked the parameters, completed the equipme
nt drawi
ngs a
nd the mai
n part desig
n. The mai
n desig
n i
ncludes drive desig
n, tra
nsmissio
n desig
n, etc. Through the desig
n of eachworki
ng part, the mecha
nical device is trial-produced to obtai
n the best test performa
nce parameters, a
nd the
n the performa
nce of the rice clea
ni
ng device is optimized. Keywords: sleeve roller, sorti
ng cyli
nder, drive desig
n 目录 1绪论5 1.1研究背景5 1.2国内外现状5 1.2.1一种水稻筛选装置5 1.2.2一种新型水稻筛选装置6 1.3国外研究现状8 2系统总体方案的确定10 2.1基本结构10 2.2系统总体方案设计10 3动力方案的设计12 3.1电动机的选择12 3.2选择电动机类型13 3.3确定电机工作时的功率13 3.4确定电动机的转速14 3.5传动比的确定和分配14 4.1皮带轮的设计计算15 4.2滚筒链传动设计和计算17 4.2.1链轮齿数17 4.2.2链条节数17 4.2.3计算功率17 4.2.4链条节距17 4.2.5实际中心距18 4.2.6计算链速18 4.2.7作用在轴上的压力18 4.3搅龙链传动设计和计算18 5.1窝眼型孔20 5.2分选滚筒20 5.3滚筒结构的确定21 5.4螺旋搅龙22 5.5螺旋供料器的转速23 5.6螺旋节距23 5.6机架23 6.1长粒种子轴向动力学分析23 6.2短粒种子动力学分析24 7.1各轴转速26 7.2各轴的功率26 7.3各轴转矩27 8.1轴1的设计校核27 8.2轴2的设计校核28 8.3重要轴的强度校核。 28 8.4轴承的计算30 8.5轴承载荷校核30 参考文献31