摘要
为研究振动筛驱动输入变化对机构输出特性的影响,对一、二、三自由度的三种三维并联振动筛的输出特性进行了分析。首先对三种振动筛主机构的筛面运动输出曲线进行了分析;然后采用离散元应用软件EDEM,对一、三自由度的两种振动筛进行了谷物透筛仿真;最后在一自由度并联振动筛样机上进行了谷物筛分试验。结果表明,一自由度三维并联振动筛可实现谷物的高效三维筛分,且结构简单、工作可靠、能耗低、易操作。
To study the influences of input change of vibrating screen on output characteristics of mechanism, this paper analyzed the output characteristics of three kinds of parallel kinematics vibrating screens with three, two and one degree of freedom. First of all,the output curves of screen surface motion of three vibrating screens were analyzed. Then the process of grain screening was simulated and analysed based on the discrete element method（DEM）. Finally, grain screening experiments were made on the prototype of optimization model. The results show that one degree of freedom parallel vibrating screen with three dimensional outputs satisfies the requirements of grain screening and features simple, reliable, low cost, low energy consumption and easy operation.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2014年第14期1852-1857,共6页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51075045
51375062)
国家科技支撑计划资助项目(2011BAD20B06)
关键词
并联振动筛
三维运动
输出特性
离散单元法
筛分效果
parallel kinematics vibrating screen
three-dimensional motion
output characteristics
discrete element method
screening effect
