Presently, the feeding of the corn thresher is controlled artificially . The uneven feeding speed directly affects the life of machine and the degree of corn threshing. Meanwhile, the traditional corn threshers were designed basing on hitting principle, which would damage the corn grain significantly. In view of these factors, a kind of automatic control system which is based on STM32, is used to control the extrusion and rubbing on corn thresher.The system, controlled by STM32, achieves the automatic feeding through the stepper motor, accomplishes the corn threshing as well as the separation of grain corn and corn cob by screw extrusion, it adopts full automatic control. Simultaneously, it can effectively reduce the damage rate of corn grain, and improve corn threshing rate and the integrity of corn cob.
Xiongmei, ZENG; Yan, ZHANG; and Yan, MA
"Design of automatic spiral corn sheller by extruding and rubbing method,"
Food and Machinery: Vol. 31:
4, Article 27.
Available at: https://www.ifoodmm.cn/journal/vol31/iss4/27
 李华. 玉米生产现状及高产栽培技术体系探讨[J]. 吉林农业,2014(20):36.
 李清龙. 打击式玉米脱粒机脱粒过程试验研究及仿真分析[D].长春：吉林大学,2014.
 张明. 步进电机的基本原理[J]. 科技信息,2007(9):83.
 董桂菊. 步进电机控制系统的研究[J]. 农机化研究,2002,24(3):57～59.
 柳建安,李伟杰. 螺旋挤搓式玉米脱粒机的设计[J]. 农机化研究,2010,32(8):82～85.
 彭刚,徐庆江,张崇金,等. 基于STM32单片机的RS485总线分布式数据采集系统设计[J]. 伺服控制,2011(2)：64～67,84.
 李涛. 基于STM32的GPS车载终端的设计[D]. 兰州: 兰州交通大学,2013.