声频振动头同步机构设计与试验研究

Design and experimental research on synchronization mechanism of sonic vibrating head

针对声频振动头双偏心轴同步问题,提出并设计了一种基于同步带传动的声频振动头同步机构,分析了其工作原理,并进行试验研究。采用控制变量研究方法,对该声频振动头进行不同工况下的同步试验测试,使用LMS数据采集系统进行数据监测与采集,通过试验数据的对比分析验证该同步机构的正确性与合理性。试验结果表明:当振动头工作流量在21.8~34.6 L/min范围内时,偏心轴同步效果随工作流量的增加而呈下降趋势;此时偏心轴转速差值在0~2.663 r/min之间、相位差值在0~0.995°之间,且都在0值上下波动;同步机构传动比精度偏差率在0.044%~0.116%之间、系统同步量在0.007 8~0.342 7之间时,偏心轴同步特性良好。声频振动头的同步效果基本实现,所设计的同步机构正确合理,可为后续机具优化与改进提供参考。

Aiming at the synchronization problem of the double eccentric shaft of sonic vibrating head, a synchronization mechanism of sonic vibrating head based on synchronous belt transmission was proposed and designed, its working principle was analyzed, and experimental research was carried out.Using the control variable research method, the sonic vibrating head was tested for synchronization under different working conditions, and the LMS data acquisition system was used for data monitoring and collection, and the correctness and rationality of the synchronization mechanism were verified through the comparative analysis of the test data.The test results show that: when the working flow of the vibrating head is in the range of 21.8~34.6 L/min, the synchronization effect of eccentric shaft will decrease with the increase of the working flow;at this time, the eccentric shaft speed difference is between 0~2.663 r/min and the phase difference is between 0~0.995 °,and all fluctuates at the value of 0;the accuracy deviation rate of transmission ratio of the synchronization mechanism is between 0.044 %~0.116 %,the system synchronization amount is between 0.007 8~0.342 7,and the eccentric shaft synchronization characteristics are good.Therefore, the synchronization effect of the sonic vibrating head is basically realized, and the designed synchronization mechanism is correct and reasonable, which can provide a reference for subsequent machine optimization and improvement.