Theoretical study of the grate-saw-type large-litter cleaner of the mounted type

Abstract

This paper reports a theoretical study into the saw-type-grate section of a large litter cleaner in mounted cleaners that operate on a cotton harvester, as well as the theoretical and experimental justifications for its parameters. The effect exerted by a mounted cleaner on the process of cleaning raw cotton when processing in a cotton gin has been studied. A theoretical model of the impact of grates on weeds in cleaning processes has been developed. A condition for repelling the litter by grates and removing it from a cotton technological flow has been studied. The use of grates with a flat-shaped front edge allows for a steady reduction in the amount of damage in the raw cotton fiber, which improves the fiber quality and leads to a decrease in the number of defects and debris. The experimental and theoretical studies have produced evidence that enables the efficient operation of mounted-type cleaning machines in the cotton-cleaning industry. The movements of raw cotton as a viscoelastic body at the free impact of litter with the teeth of the saw against a stationary surface of the grate were investigated; the force schemes between the grates and saws were considered. The effect of a saw-type drum on the technological properties of raw cotton was investigated, namely on seed damage and the formation of the free fiber. A model of interaction between weed particles and grates was considered; the trajectories of the litter flight were shown in the function of the slope of the grate and the recovery factor. The issues of the relationship between the physical-mechanical properties of raw cotton, the elastic characteristics of raw cotton, and the impact force of cotton flies against the grate with a flat working face. Solving these issues could make it possible to determine the optimal structure of the raw cotton cleaning mechanisms, which would improve the effectiveness of cleaning raw cotton from weeds. Based on the identified functional links, it has become possible to construct new or improve existing structures of the saw-type grate section of mounted cleaners. Practical experience shows that the use of the designed structure in large litter cleaners of the mounted type produces a significant increase in the cleaning effect of the machine

Manufacturing industry potential of the Kyrgyz Republic in Eurasian economic integration

“…As for developed countries, which are characterized by an increasing role of the service sector and a decreasing role of industry, there are certain specific features. Firstly , their production capacity may be located in other countries due to globalization; secondly, although the relative role of industry is declining, its capacity as such continues to increase and modernize [65][66][67][68]. Thus, the role of industrial production remains significant.…”

Research of the Interaction Impact Features of the Cotton Wicks While Hitting the Grates in the Cotton Ginning Machines

“…The main cleaning section of the ginning machines, used for this purpose is called the saw drum-grate network zone [2]. Keeping the natural quality indicators of raw cotton and taking into account its physical and mechanical features, there is a great demand to conduct theoretical studies and researches for designing new machines [8,9,11]. The solution of this issue could be possible as a result of the joint effort of scientific research project organizations, as well as machine-building and cotton processing enterprises.…”