Diseño y Construcción de una Trilladora y Limpiadora de Quinua.

Abstract

The present work deals with the Design and Construction of a South American Pigweed Thresher and Cleaner which ¡s one of the crops considered as delicate as to management and care. The South American Pigweed harvest must be carried out with a due opportunity to avoid not only the losses for the adverse effects of the climate and bird attack with the decay of the grain quality. A South American pigweed harvest system consists of the use of stationary threshers; reaping and transport of bundles are carried out manually. Various models of cereal threshers have been adapted to the South American threshing; in other cases specific prototypes have been created, all with acceptable effectiveness and performance. There is a search to solve the inconveniences present at the moment of harvesting the South American pigweed with machines which are not specifically for threshing; this is why a threshing and cleaning machine is designed which is more efficient and consists of a hopper which ¡s the branch entrance, where they go to the chopping rotor which cuts off in a determined size ,passing then to the threshing system which consists of a series of threshing bars; then the fan suctions all the chopped , reaped, material and sends it to the cyclone which separates the South American pigweed seed from the rest of the material thus increasing efficiency in both the threshing and the cleaning of the South American pigweed. A comparison of the production of the machines adapted to threshing was carried out to the constructed one specifically for South American pigweed; the daily production was 60 hundredweights, 93% machine efficiency and a significant production time reduction. After having finished the study the small and middle producers are recommended to use the machine with precaution and trained personnel; it is also recommended to carry out periodic maintenance if possible so as to obtain a better machine efficiency. 1 CAPÍTULO I 1. INTROD