Results of the experimental research on the transport and cleaning systems of root head
DOI:
https://doi.org/10.31734/agroengineering2020.24.045Keywords:
loading conveyor, cleaning slide, auger system, heap of roots, impurities, damageAbstract
The efficiency of the technological processes of root harvesting is improved by providing an integrated scientific approach to solving structural and technical problems, aimed at improving transport and cleaning systems of root harvesting machines under following the initial requirements for quality indicators. The article provides description of the construction and the principle of operation of the transport-cleaning system of root crops, which consists of sequentially installed inclined loading conveyor, cleaning finger slide and located in its lower east system of augers of two structures – elliptical augers and augers of round cross-section. According to the results of the planned field factorial experiments, regression equations were obtained. They characterize the change of components of the heap of root crops depending on the structural and kinematic parameters of the transport and cleaning system and the operating conditions of the root harvesting machine. It is established that the minimum values of the quality of work (total impurities – from 5 % to 7 %, sticky soil on roots – from 0.5 % to 1.0 %, damage to roots – from 7 % to 10 %) is achieved by the following basic parameters of transport cleaning system: screw diameter 0.25 m, screw speed from 140 rpm to 180 rpm, rotational speed of elastic elements from 500 rpm to 700 rpm at the speed of the root harvester 5…7 km/h and soil moisture 19…21 %.
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