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一种压电超声波物料输送器 被引量:1

A piezoelectric ultrasonic material conveyor
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摘要 利用压电陶瓷元件具有良好声电转换特性和输出特性,本文提出了一种新型结构的压电超声波物料输送器。设计了超声波物料输送器的结构并分析了其工作原理,采用纵扭复合型压电换能器为驱动源,对压电换能器进行了结构设计和参数计算,并对其进行了性能测试。由此研制出了压电超声波输送器的样机并进行了试验测试,结果表明:当频率为17.9 kHz–18.6 kHz时,输送器具有输送物料能力。驱动负载为1.5 kg时系统的谐振频率为18.3 kHz,输送速度最快,达到64个/min。随着电源输出功率的增大输送物料速度呈线性增加。该输送器的稳定性好,噪声低。与压电片式和电磁式输送器噪声进行对比,超声波输送器的工作噪声仅为31 dB,略小于压电片式,远小于电磁式。 A new structure of ultrasonic piezoelectric conveyor using its good acoustic-electric propertiesand output properties was presented. The structure of ultrasonic material conveyor was designed and itsworking principle was analyzed, the use of longitudinal and torsional piezoelectric transducer as a drivingsource, the piezoelectric transducer design and parameters were calculated, and its performance was tested.Thus a piezoelectric ultrasonic conveyor was developed and the prototype was tested. The results show that:when the frequency is 17.9 kHz–18.6 kHz, the conveyor has ability of conveying materials. When the loaddrive 1.5 kg, the resonant frequency of the system is 18.3 kHz, reaching the fastest delivery, which is 64/min.With the output power increases, the speed of conveying materials increases linearly. It has good transportstability and low noise. Compared with piezoelectric chip and electromagnetic conveyor, the operating noise ofpiezoelectric ultrasonic conveyor is only 31 dB, slightly less than the piezoelectric chip conveyor, far less thanthe electromagnetic conveyor.
作者 田晓超 杨志刚 李庆华 贺春山 张雁 TIAN Xiaochao;YANG Zhigang;LI Qinghua;HE Chunshan;ZHANG Yan(Institute of Mechanical and Vehicle Engineering, Changchun University, Changchun 130022, China;Institute of Mechanical Science and Engineering, Jilin University, Changchun 130025, China)
出处 《应用声学》 CSCD 北大核心 2016年第5期404-409,共6页 Journal of Applied Acoustics
基金 国家自然科学基金资助项目(51277088)
关键词 压电驱动 超声波输送器 纵扭换能器 振动 Piezoelectric drive Ultrasonic conveyor Longitudinal and torsional transducer Vibration
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