| Summary: | 碩士 === 國立屏東科技大學 === 機械工程系 === 87 === This work discusses the factors affecting the feed rate of leaf types of
materials in vibratory conveying. The physical properties included moisture
content, coefficient of dynamics friction and static friction and equilibrium
moisture content of choisy are first determined. The theoretical analysis is
then studied to predict the vertical motion of transported materials. The
states of motion of the transported materials include sticking, separation,
upward, contact, impact and free-fall. Through the numerical simulation,
several factors, including motor speed, excitation displacement amplitude,
mass of transported material, spring constant and resilient coefficient, are
discussed to show their effects on the motion of transported materials. For
about the same mass of the transported materials, the motor speed, excitation
displacement amplitude and resilient coefficient will significantly affect the
feed rate, while the spring constant has little effect on the feed rate. This
work also conducts a series of experiments for a practical application of
vibratory conveying equipment that transports the choisy. The equipment
contains the container, feeding conveyor, circular type of vibratory conveyor,
and rotary sucker system. Results show that the feed rate of choisy is
proportional to the motor speed of feeding conveyor, circular type of
vibratory conveyor and rotary sucker system. The observed physical phenomenon
of the choisy's motion in the vibratory conveying system agrees with that
found in theoretical simulation.
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