Using the imitation model of elementary technological operation at the evaluation of the threshing action of the threshing device

Fisunova, Elena; Lavrenova, Tatiana; Zharov, Viktor P.

doi:10.1051/matecconf/201822405018

Cited by 2 publications

(1 citation statement)

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“…The kernel harvest rate refers to the speed at which intact kernels are acquired during the threshing process [11]. Presently, the most prevalent threshing component employed is the rigid threshing component (RTC), which relies on a rigid impact to promptly dislodge the kernels [12,13]. The higher the impact force exerted by the RTC on the kernels, the greater the threshing rate, but also the higher the rate of kernel damage [14].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Performance of Sunflower Threshing Machines through Innovative Enhancements

Ali,

Li,

Wang

et al. 2024

Agriculture

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Improving the performance of the threshing process is of utmost importance in enhancing the quality of sunflower seeds and minimizing power consumption in sunflower production. In this study, we developed a modified sunflower threshing machine by incorporating two types of threshing rotors, namely the angled rasp bar rotor and the tine bar rotor, as compared to the round bar rotor. The performance of these rotors was evaluated under various rotational speeds (150, 200, 250, and 300 rpm) and concave clearances (10, 15, and 20 mm). The evaluation parameters included machine throughput, the specific energy of threshing, the percentage of damaged seeds, the percentage of unthreshed seeds, and threshing efficiency. The results indicate that the specific energy decreased with an increase in rotor speed and a decrease in concave clearance, with the tine bar rotor exhibiting the lowest values. Threshing efficiency showed an increasing trend with higher rotor speeds and reduced concave clearance. The modifications made to the rotor design resulted in an enhanced threshing efficiency, with an improvement from 96.30% to 97.93% achieved at a rotor revolving speed of 300 rpm and a concave clearance of 10 mm. Moreover, the specific energy consumption reduced from 9.65 kW·h/ton to 5.09 kW·h/ton under the same operational conditions. These findings highlight the efficacy of the novel rotor design modifications in optimizing the performance of the stationary sunflower threshing machine, leading to improved efficiency and reduced energy consumption in sunflower seed threshing operations. Given its performance characteristics, this machine exhibits potential suitability for sunflower farms of small to medium scale.

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