The results of experimental research of a rotor seed-metering unit for sowing non-free-flowing seeds

Abstract

The production and cultivation of new high-quality seed varieties are linked to the sowing of various crops with diverse physical and mechanical seed properties. Efficient seed-metering unit operation is critical during the technological process of fodder crop cultivation, predominantly when sowing non-free-flowing seeds. The quality of seed sowing and crop yield significantly rely on the design precision of seed-metering devices, technical maintenance and appropriate calibration. A rotary seed metering device was incorporated to ensure that non-friable seeds are uniformly sown, thus maintaining consistent seed supply and consumption at all stages of circulation. The study of the proposed device's productivity dependence on its operating parameters is justified because these variables affect crucial indicators such as the capacity to achieve and sustain the desired seeding rate over the entire operational duration. The study presents findings from an experimental investigation on sowing non-free-flowing (non-flowing) and finely dispersed seeds using a rotor seed-metering unit. The tests aimed to ascertain the precision and evenness of sowing such crops. It was observed that the speed of rotation of the seed-metering unit's vane disk is a key factor in the uniformity and supply of sown seeds. The limits of variation in rotor rotation speed and rotor seed-metering unit productivity per second were established to guarantee the desired seeding rate for various crops, including alfalfa, Agropyron, and Bromus inermis.

Design and Testing of Seed Push Wheel for High-Speed Precision Seed Metering Device for Corn With Internal Seed Filling and Positive Pressure Airflow

“…Factors affecting corn yields are climate, soil conditions, seeds, planting techniques and field management techniques, among which seeding quality is one of the most important influencing factors. In order to improve the seeding quality of mechanized operations, over the years, the precision seed discharger (Karayel et al, 2022;Kumar-Patel et al, 2021;Ospanova et al, 2024) has been the focus of research and hot spots of single grain (precision) seeding machine, while for highspeed operations (>9 km/h) the research of smooth seeding mechanism is relatively weak, the seed guide, seeding link has become a constraint on the quality of high-speed sowing operations to further improve the "short board", there is an urgent need to develop the high-speed operation of the smooth seeding mechanism (Liao et al, 2020). Xin Currently, improving corn seed spacing uniformity typically involves lowering the height of seed casting.…”