Justification of constructive and technological parameters of vibrating seeding unit
2021
Machkarin, A., Belgorod State Agricultural Univ. named after V. Gorin (Russian Federation) | Ryzhkov, A., Belgorod State Agricultural Univ. named after V. Gorin (Russian Federation) | Chehunov, O., Belgorod State Agricultural Univ. named after V. Gorin (Russian Federation) | Makarenko, A., Belgorod State Agricultural Univ. named after V. Gorin (Russian Federation)
The expediency of using a direct sowing seeder SDM-6x2 with a vibrating sowing device for sowing winter wheat has been substantiated. The structural diagram of a seeder with a vibrating sowing device is presented. The theoretical foundations of the operation of the vibratory sowing apparatus are stated and the regularities of the process of dosing seeds during sowing are theoretically investigated, which makes it possible to substantiate its design and technological parameters. On the basis of a theoretical analysis of the working process of sowing winter wheat seeds using a vibrating sowing apparatus, analytical dependences of the actual and calculated specific weight costs on the acceleration of vertical and horizontal oscillations of the apparatus trough were obtained, which graphically illustrated the uniformity of the distribution of winter wheat seeds. In the research of the working process of dosing winter wheat seeds with a vibration sowing device, the following were obtained: an analytical expression for determining the value of unevenness and instability of seeding, the influence of the amplitude and frequency of oscillations on the speed of seed movement, taking into account the design and technological parameters of the vibration sowing device. In the research of the working capacity of the vibratory sowing device, the theoretical premises were checked, and the optimal design and technological parameters were substantiated. On the basis of the studies carried out, the possibility of using a vibrating sowing device of the proposed design for sowing winter wheat seeds with an uneven dosage that is within acceptable agrotechnical limits has been experimentally confirmed. As a result of using a vibrating sowing device, the uniformity of seed distribution in the soil is increased.
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