Design of engine operated rocker sprayer with KAMCO reaper engine as the prime mower

Abstract

A reaper is a farm implement or person that reaps (cuts and often also gathers) crops at harvest when they are ripe. Usually the crop involved is a cereal grass. Most modern mechanical reapers cut the grass, most also gather it, either by windrowing it or picking it up. Benefits of power reaper include they are simple to use controls i.e. Manual handling machine does not require separate machines for mounting. They are cost effective and saves time and are light weighted machine so that it is easy to handle. They are suitable for various crops like bengal gram, black gram, green gram, wheat, soybean mustard and paddy etc. But even though, In the entire season the usage of reapers is only at the time of harvesting. This can lead to high maintenance which result in more maintenance cost. This also destroys the machines due to long time no use and rusting of parts. So in turn, it is not used effectively comparing its price. Hence at off season reaper can be utilised in some other way without altering its structure. There are many types of pesticides sprayer pump available in India. One commonly used sprayer is rocker type sprayer which is used by farmers because it is cheaper, easy to use, easily available and main thing about it is cost efficient. With the help of this machine, farmers spray pesticides in their farm, but it requires lot of time and thus high operational cost, low efficiency, health problem and low profit. Also, the farmer which is spraying pesticides is affected by it as it is harmful to human health. And also it requires high manual power to maintain required pressure. That leads to problems of back and solder pain. Taking these problems in view, rocker arm sprayer was selected and modified to a much more ergonomical model. Reaper engine was selected which was attached the rocker sprayer to form the engine operated sprayer. Hence combining the KAMCO power reaper with rocker sprayer can resolve the problems of both the equipment. The rpm obtained at the gear output of the reaper is 460 rpm but the required rpm for the rocker sprayer operation is 74 rpm (average). To acquire this a reduction box is required with a reduction ratio of 6:1 and hence a reduction box is to be developed. The power from engine is supplied to rocker sprayer using a slider crank 34mechanism with the length of two linkages as 4.5 cm and 13 cm. The reduction box is attached to the gear output with a shaft. This model is excepted to reduce the problems like high manual power requirement for the operation that may lead to back pain and shoulder pain and also for easy transportation and operation of the sprayer by a single person.