基于动态模型纺织机器滚珠丝杆机构振动特性研究  

Research of the Vibration Characteristic of Ball Screw Mechanism of Textile Machine based on Dynamic Model

作　　者：张长福[1] 姚玲峰[1] 

机构地区：[1]成都纺织高等专科学校,四川成都611731

出　　处：《机械传动》2014年第11期36-40,共5页Journal of Mechanical Transmission

摘　　要：针对纺织机器滚珠丝杆机构振动问题,建立滚珠丝杆传动机构的动态振动模型,研究了预加载荷、工作台质量、扭转刚度、等效轴向刚度及滚珠螺母的轴向刚度和滚珠丝杆质量对滚珠丝杆传动系统振动特性的影响,以振动加速度为表征形式。研究结果表明,随着预加载荷、扭转刚度、等效轴向刚度、滚珠螺母轴向刚度增加及工作台质量、滚珠丝杆质量减小,滚珠丝杆的振动加速度峰值频率逐渐增加;随着预加载荷、滚珠螺母轴向刚度增加及工作台质量、滚珠丝杆质量减小,振动加速度峰值逐渐增加;随着扭转刚度增加,振动加速度峰值呈现先减小后增加再减小的趋势;随着等效轴向刚度增加,振动加速度峰值呈现先减小后增加再减小的趋势;随着预加载荷增加,滚珠丝杆的传递功率逐渐增加。To the vibration problem of the ball screw mechanism of textile machine,the dynamic vibration model of ball screw transmission mechanism is established,the preload,the mass of work table,the torsional stiffness,the equivalent axial stiffness and the axial stiffness of ball nut and the mass of ball screw to influence on a ball screw drive system vibration characteristics are studied,in the form of vibration acceleration for the vibration characterization.The research results show that with the preload,the torsional stiffness and the equivalent axial stiffness,the axial stiffness of ball nut increase and the mass of work table,the mass of ball screw decrease,the vibration acceleration peak frequency of ball screw is increased.With the preload,the axial stiffness of ball nut increase and the mass of work table and ball screw decrease,the vibration acceleration peak value increase.With the increase of torsional stiffness,the vibration acceleration peak value shows the tendency of first decrease then increase at last decrease.With the increase of equivalent axial stiffness,the vibration acceleration peak value shows the tendency of first increase then decrease;with the increase of preload,the ball screw transmission power increase.

关 键 词：动态模型 滚珠丝杆 振动特性 

分 类 号：TS103.3[轻工技术与工程—纺织工程]