“Design & Fabrication of Adjustable weeds removal machine”

Abstract

Weeds are one of the major causes of loss of agricultural produce. Weeds compete with crops for essential
nutrients. More than 33 % of the cost incurred in cultivation is diverted to weeding operations there by reducing the profit
share of farmers. Its main objective is to reduce the manpower as in today's scenario labours are very hard to find as well
as it reduces the working time. Hence mechanical weed removal is necessary to reduce the labour force. Environmental
degradation and pollution caused by chemical is reduced by the use of Mechanical weed removal. Low effective operation,
low work effort and high time requirement for different types of hoe or cutlass, can be overcome with the use of
mechanical weed removal.
In the machine two adjustable rotors are connected with the small engine by the help of flexible coupling ; a plurality of
teeth extend radially from the periphery region of the unit, for the progressive removal of weeds during advancement along
the agriculture soil, as a consequence of the rotation of the unit, and of the teeth, about the central axis.
In this adjustable weeds removal machine, we can adjust the gap between two rotors according to the size of the crop. So
because of this adjustable mechanism we can use this machine in the multicrop.