无自振激振器偏心轮的力学性能分析

Analysis of the mechanical property of non-vibration vibrator eccentric

介绍一款可避免自振的激振器。其特点是采用预压可移偏心轮结构,当转速较低时,预压可移偏心轮保持结构对称,使低频阶段激振器无激振力输出并避免设备的自振;在高速转动时,轮上的可动偏心块移动从而输出规定的激振力。通过建立数学模型后对可动偏心块的运动受力情况进行分析,并用MATLAB软件对其运动过程进行仿真,从理论上验证无自振偏心轮能够避免共振的性能,为将来设计系列激振器提供了理论依据。

Introduces a vibration can avoid the vibrator. Its characteristic is the preloading eccentric structure,when speed is low, preloading will move to keep structure symmetrically, eccentric symmetrical low frequency phase vibrator no force to keep out and avoid vibration of the equipment. When speed is high, the eccentric wheel will mobile and output regulation vibration force. After establishing a mathematical model of eccentric slide block to analyse the movement of eccentric slide block, then use MATLAB to simulate the motion of the process, and prove it can avoid resonance performance validation from theory, and provide theory basis for design series vibrators in the future.