Design and Development of teff seed broadcaster
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2012
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Abstract
An analysis of the motion of teff seed particle on a rotating cone shaped disc is conducted and also basic equations of motion derive for a single teff seed particle. The analysis directly applied to the flow of teff seed particle on a spinning disc spreader. Equations of motion are developed for cone shaped disc and pitched type vane spreader. The derived equation of motion form parts of the basis of MATLAB-SIMULINK model simulation for spinning disc spreader with equation of motion through the air (off-disc) model. In MATLAB-SIMULINK simulation, the motion of single teff seed particle is considering with different initial conditions (physical properties of teff seed such as moisture content) and also varying different machine parameters (such as cone angle, pitch angle and rotational speed of disc). Different machine parts were designed and the mass flow rate of teff seed was calculated. Seed hopper was also designed. Shafts were designed and selecting of material for shaft was done, and checked. Bevel gear was designed and the principal dimension was found. Four bearings were selected and checked for stability under the existing loads.
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Mechanical Engineering