卧式振动离心脱水机的振动模态  

Research on Vibration Mode of Horizontal Vibration Dewatering Centrifuge

作　　者：刘克铭[1] 杨伟红[1,2] 任兰柱[1,3] 崔凤录[4] 

机构地区：[1]辽宁工程技术大学机械学院,辽宁阜新123000 [2]东北大学机械学院,沈阳110004 [3]北京科技大学机械学院,北京100083 [4]中国矿业大学化学与环境工程学院,北京100083

出　　处：《机械设计与研究》2010年第5期119-121,125,共4页Machine Design And Research

基　　金：辽宁工程技术大学优秀青年基金资助项目(07-79)

摘　　要：通过卧式振动离心脱水机的振动模态实验研究了机壳及支撑体、筛篮的各阶振动模态、振型及振动轨迹。结果表明:底座与支撑体的第一阶固有频率与离心脱水机稳定运转时振动电机产生的激振力频率比值小于0.54,筛篮的第一阶固有频率与离心脱水机稳定运转时振动电机产生的激振力频率比值大于0.85。振动离心脱水机停机过程中将经过壳体及支撑体、筛篮的共振区。加工物料时,筛篮等组成的振动体对振动电机产生的激振作用力进行了吸振。This paper investigates the vibration mode of horizontal vibration dewatering centrifuge. All-order vibration mode,vibration shape and vibration trajectory of casing,support body and sieve basket are studied. The result shows that：the ratio of the first-order natural frequency of base and support body and the rotation frequency of eccentric motor when centrifuge operates steadily is less than 0.54; The ratio of the first-order natural frequency of sieve basket and the rotation frequency of vibration motor when centrifuge operates steadily is more than 0.85; The centrifuge spends longer time in going through the resonant region in the shutdown process; Exciting-vibration force from the viberation motor canbe absorbed by the primary vibrating body of sieve basket etc.,during processing the matarials.

关 键 词：卧式振动离心脱水机 模态分析 振型 共振 

分 类 号：TD462.1[矿业工程—矿山机电]