Sensors 2013, 13(7), 9174-9182; doi:10.3390/s130709174
Article

Piezoelectric Driving of Vibration Conveyors: An Experimental Assessment

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Received: 3 June 2013; in revised form: 4 July 2013 / Accepted: 7 July 2013 / Published: 17 July 2013
(This article belongs to the Special Issue Piezoelectric Sensors and Actuators)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Vibratory feeders or vibratory conveyors have been widely used for the transport and orientation of individual parts and bulk materials in many branches of industrial activity. From the designer’s standpoint, the current endeavor is to conceive efficient vibratory feeders, satisfying constraints of power consumption, vibration transmission and noise emission. Moreover, the interest in the reduction of maintenance cost is always present. In this context, this paper investigates experimentally the concept of vibratory conveying based on the use of piezoelectric materials for motion generation. A small-size prototype of a linear conveyor, in which lead-zirconate-titanate (PZT) patches are bonded to the resilient elements, is described. One of the main design goals is that the prototype is intended to be fed directly from the electric network, aiming at avoiding the use of electronic equipment for driving. To comply with this feature and, at the same time, enable to adjust the transport velocity, a mechanical device has been conceived in such a way that the first natural frequency of the conveyor can be changed. It is shown that the transport velocity is determined by the proximity between the excitation frequency and the first natural frequency of the conveyor. The experimental tests performed to characterize the dynamic behavior of the prototype are described and the range of transport velocities is determined.
Keywords: vibratory feeder; vibratory conveyor; automation; piezoelectricity
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MDPI and ACS Style

Rade, D.A.; de Albuquerque, E.B.; Figueira, L.C.; Carvalho, J.C.M. Piezoelectric Driving of Vibration Conveyors: An Experimental Assessment. Sensors 2013, 13, 9174-9182.

AMA Style

Rade DA, de Albuquerque EB, Figueira LC, Carvalho JCM. Piezoelectric Driving of Vibration Conveyors: An Experimental Assessment. Sensors. 2013; 13(7):9174-9182.

Chicago/Turabian Style

Rade, Domingos A.; de Albuquerque, Emerson B.; Figueira, Leandro C.; Carvalho, João C.M. 2013. "Piezoelectric Driving of Vibration Conveyors: An Experimental Assessment." Sensors 13, no. 7: 9174-9182.

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