新型齿轮—凸轮组合式拨禾轮  

New Type of Gear- cam Modular Reel

作　　者：陆体文 李波[1] 周超超[1] 陈定方[1] 

机构地区：[1]武汉理工大学智能制造与控制研究所,湖北武汉430063

出　　处：《机械传动》2015年第10期133-136,共4页Journal of Mechanical Transmission

基　　金：武汉理工大学自主创新基金

摘　　要：为了提高收割机拨禾轮的工作效率以及改进现有偏心式拨禾轮的弊端。提出一种新型齿轮-凸轮组合式拨禾轮装置,通过齿轮和凸轮的组合,可以改变拨禾轮在转动过程中有规律速度的变化并且弹齿垂直进入穗头,提高拨禾轮的工作效率。对装置进行了功能叙述、关键零件的设计,包括凸轮轮廓的设计、主轴的力学分析等。运用MATLAB和Solid Works设计出了凸轮的轮廓,运用ANSYS得到了主轴的静力学分析结构和动载下的振型和固有频率。通过设计分析,提出的新型拨禾轮切实可行。To improve the efficiency of harvester reel and improve the shortcomings of existing eccentric reel,a new device of gear- cam modular reel is presented. By a combination of gear and cam,through changing the reel speed in the rotation process and tine head vertically into the ear to improve reel efficiency. The main features of the device,the key parts of the design,including the cam profile design,mechanical analysis of the spindle and so on are described. By using MATLAB and Solid Works,a cam profile is designed,and by using ANSYS,the spindle statics analysis of the structure and vibration mode and natural frequency under dynamic load are got. By the design and analysis,the presented new reel is practicable.

关 键 词：齿轮-凸轮组合式拨禾轮 凸轮轮廓 静力分析 模态分析 

分 类 号：S225[农业科学—农业机械化工程]