Transmission shaft and its parameters for feed choppers in agriculture

The article presents the results of field experiments to determine the quality of cotton processing with an experimental OVX-600 sprayer with a pneumatic disk sprayer in the mode of a low-volume spraying method with a working fluid consumption of 50-100 l/ha. During the field research, a nomogram was compiled to determine the flow rate of working fluid for low-volume spraying, regardless of the type of tractor and at various speed modes of the unit. The results of high-quality processing of cotton with an experimental OVX-600 sprayer with a pneumatic disk sprayer were obtained, which showed that with a capture width of up to 21.6 meters, the deposition of the drug, both in the width of the capture (45.9%) and in the height of the bush (68.1%) of cotton meets agrotechnical requirements. The conducted field experiments have shown that by the density of the coating of the surface of the cotton leaves, and by the dispersion of droplets (80-120 microns), the experimental sample of the OVX-600 sprayer with a pneumatic disk sprayer is quite suitable for use in the mode of low-volume spraying of cotton.

Evaluation of the qualitative performance indicators of the experimental OVX-600 sprayer with a pneumatic disk system

Khojiyev,

Utepov,

Narziev

et al. 2024

Justification of parameters and operating modes of a screw feed chopper for livestock farms

Jumatov,

Savutov

2024

The focus of the research is on developing a new grinder design that uses less energy and metal, starting from a theoretical perspective. The study looks into how the screw cutter system’s quantitative and qualitative indicators relate to geometric factors and speed modes of operation. Only by decreasing the average cut length, or by speeding up the screw knife’s spin, can the degree of stem chopping be increased. According to the knife’s rotation speed, the experiment displays the average slice lengths and the associated productivity of the screw cutting pair. In order to comply with zootechnical criteria, the following modes should be used: n = 400-450 rpm (lav = 5,5-4 cm) with an inclined feed angle of β = 450, and n = 550-650 rpm (lav = 8-4,5 cm) with vertical loading. The productivity of the cutting pair sharply decreases as the knife’s rotation frequency increases. The aforementioned numerical examples demonstrate good agreement with the experimental results and were chosen in accordance with the characteristics of the experimental setup.

Justification of the basic parameters of the rotary soil subsoiler

Alijanov,

Abdurokhmonov,

Umirov

et al. 2024

The article presents materials for substantiating the main parameters of a rotary soil cultivator of a new sowing device equipped with a device for loosening the soil of non-performed primary tillage. To justify the width and diameter of the rotary ripper, consisting of 5 packages of pointed paws, tests were carried out to determine the location of corn stalks along the axis of the row. The test results were processed using mathematical statistics methods. Using the obtained formulas, distribution density curves of random variables were constructed. The width was taken from the plotted graph and based on this the diameters of the rotary shredder packages were taken.