2016届 分类号：S226.10
单位代码 ：10452
stc2052
姓 名
学 号
年 级 暖墙
专 业 机械设计制造及其自动化
系 （院） 机械工程学院
指导教师
2016年 3月 30日
摘 要
传统的玉米脱粒机脱净率不是很高，需要进行后期的玉米粒的筛选工作，给农民增加了劳动负担。并且机器都是较大型的，不是很轻便。针对玉米脱粒现状，对现在的玉米机进行脱净率的提高的改进设计很有必要。此次设计的脱粒机的工作原理是利用钉齿对玉米棒打击产生的惯性破坏玉米粒与玉米芯的连接。因为在打击过程中，玉米粒会产生振动，从而产生较大的惯性力。当破坏连接之后，运动旋转的滚筒与圆筒凹版之间的产生的螺旋挤搓力可以将玉米粒搓离玉米芯，此搓力是仿照人工脱粒设计的。搓离开的玉米粒由筛孔分开来，从出料口顺着斜滑板集中排出。同时鼓风装置将混在玉米粒里的玉米丝、皮儿等杂质 吹出来。玉米芯则借助滚筒上的螺旋排列的钉齿的螺旋推力和螺旋导向作用，由即出料口排出机体之外。
关键词：玉米脱粒机；仿人工搓粒；铁齿滚筒；螺旋挤搓
手机转轴
屋面玻纤瓦
虚拟机管理系统
ABSTRACT
空压机管道
The traditional corn thresher off net rate than maize grain is very high, need to be screening of corn in the late work, increased the labor burden to peasants. And machines are relatively large, not very light. According to the present situation of corn, corn machine now improved design to improve the threshing rate is very necessary. The desig
n of the threshing machine working principle is to use the nail tooth of corn on the cob blow inertia damage corn and corn cob connection. Because in the attack process, corn grain will produce vibration, resulting in a greater inertia force. When connected to a failure, and between the rotary motion of the drum and the drum gravure of helix crowded rub force can be the corn grains twist from corn cob and the rubbing force is modeled on the design of manual threshing. Leave the corn grain by rubbing sieve to separate from the discharge port, along the inclined slide discharge. At the same time the blower device will be mixed in the corn kernels of corn silk, leather and other impurities blown out. Corn cob is using screw arranged on a cylinder of tooth of spiral thrust and spiral guiding role, of the discharging mouth outside the institutional body.
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