中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2014年
14期
1852-1856,1857
,共6页
李菊%赵德安%沈惠平%邓嘉鸣%黄涛%熊坤
李菊%趙德安%瀋惠平%鄧嘉鳴%黃濤%熊坤
리국%조덕안%침혜평%산가명%황도%웅곤
并联振动筛%三维运动%输出特性%离散单元法%筛分效果
併聯振動篩%三維運動%輸齣特性%離散單元法%篩分效果
병련진동사%삼유운동%수출특성%리산단원법%사분효과
parallel kinematics vibrating screen%three-dimensional motion%output characteristics%discrete element method%screening effect
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。
為研究振動篩驅動輸入變化對機構輸齣特性的影響，對一、二、三自由度的三種三維併聯振動篩的輸齣特性進行瞭分析。首先對三種振動篩主機構的篩麵運動輸齣麯線進行瞭分析；然後採用離散元應用軟件EDEM ，對一、三自由度的兩種振動篩進行瞭穀物透篩倣真；最後在一自由度併聯振動篩樣機上進行瞭穀物篩分試驗。結果錶明，一自由度三維併聯振動篩可實現穀物的高效三維篩分，且結構簡單、工作可靠、能耗低、易操作。
위연구진동사구동수입변화대궤구수출특성적영향，대일、이、삼자유도적삼충삼유병련진동사적수출특성진행료분석。수선대삼충진동사주궤구적사면운동수출곡선진행료분석；연후채용리산원응용연건EDEM ，대일、삼자유도적량충진동사진행료곡물투사방진；최후재일자유도병련진동사양궤상진행료곡물사분시험。결과표명，일자유도삼유병련진동사가실현곡물적고효삼유사분，차결구간단、공작가고、능모저、역조작。
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 vibra-ting 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 vi-brating screen with three dimensional outputs satisfies the requirements of grain screening and fea-tures simple ,reliable ,low cost ,low energy consumption and easy operation .
