1、 1 摘摘 要要 本设计基于各种脱粒机的结构，主要研究玉米脱粒机的传动系统的结构、工作原理， 并在此依据基础上完成零部件的设计，并依据相关机械设计软件来完成零部件的设计。本 着从经济性和实用性的角度出发，针对农业发展的需要设计出一种结构简单，工作效率高 的玉米脱粒机。首先应该根据玉米盘的自身形状来展开初步设计，从而展开总体方案的传 动设计。 研究的主要内容基本包括玉米脱粒机构、电机的选择、带轮的结构设计。一般机械设 计方法，通常多从总体方案开始，在总体方案中又首先从机构的分析开始，确定方案后再 进行必要的设计计算和结构设计，最后以完成的设备图纸和设计计算书作为整个设计计算 的成果。为了减轻农民
2、的劳动强度，提高农业作业的机械化程度，填补农业机械的一项空 白，针对玉米盘本身特征进行设计，在脱粒时钉齿滚筒高速旋转，使玉米在机箱壁和罗底 之间不断被钉齿打击，而这个作用又使玉米棒之间不断互相碰撞，以达到籽盘分离，然后 净粒，完成脱粒。 关键词：关键词：玉米脱粒机；钉齿滚筒；传动系统；带轮 2 Abstract This design based on various kinds of threshing structure, the main research corn of transmission system of separating thrasher structure, work
3、ing principle, and on this basis to complete parts design based on, and according to the relevant mechanical design software to complete parts design. In line with from the point of view of economy and practicability, according to the needs of the development of agriculture designed a kind of simple
4、 structure, high efficiency of the corn threshers. First should according to their own shape of corn dish on the preliminary design, and operate the overall scheme of the transmission design. The main contents include corn threshing institutions, basic motor selection, with the structure design of t
5、he wheel. General mechanical design method, usually from the overall scheme started, the overall scheme and the analysis of the first from the agency began, determine the scheme more necessary design calculation and structure design, and finally to complete equipment drawings and design calculations
6、 as the whole design calculation results. In order to reduce the farmer labor intensity, improve agricultural mechanization of homework, fill a gap of agricultural machinery, aiming at the characteristics of the corn disk itself design, when the threshing nail tooth roller high-speed, make the corn in case wall constantly was nailed tooth between blow, but the effect and the cob collision between that constantly, in order to achieve the seed dish separate, then net grain, complete the threshin
