Features of the choice of working bodies for the technology of strip tillage when sowing re-crops

Alimova, F A; Primkulov, B Sh

doi:10.1088/1755-1315/1076/1/012001

Cited by 5 publications

(6 citation statements)

References 9 publications

(7 reference statements)

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“…𝑄 𝜕 = 𝑀 𝜕 = 𝑗 𝜕 𝜑̈𝜕; 𝑄 1 = 𝑀 1 = 𝑗 1 𝜑̈1; 𝑄 2 = 𝑀 2 = 𝑗 2 𝜑̈2; 𝑄 𝑏 = 𝑀 𝑏 (6) We put the values of angular velocities of LSSSC mechanisms and ( 6) into (7) and determine the energy state from the following equation.…”

Section: Resultsmentioning

confidence: 99%

“…During the study of the Laboratory Stand "Small Soil Channel" (LSSSC), problems related to the construction of mathematical models were solved. Therefore, criteria reflecting the dynamic characteristics of LSSSC are the basis for modeling [5,6]. The rational distribution of material and energy resources is important in the design and improvement of the small soil channel laboratory stand (LSSSC).…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of small soil channel laboratory stand drive and evaluation of its energy state

Alimova

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The article presents data on improving the design of the Small Soil Channel research laboratory stand. The possibilities of experimental works on study of kinematic parameters and structural parameters, spatial dynamometering of working elements of tillage and sowing machines are described. The article considers the method for assessing the energy state of the laboratory stand small soil channel and studying the power distribution in its moving mechanisms. Based on the parameters obtained as a result of solving the equations of motion and energy state, using the full differential of the Hamelton function, the power distribution in the mechanisms under the action of external forces and the total mechanical energy of the stand are determined. The traction resistance of stand working body was determined using the Goryachkin formula. Based on the developed kinematic scheme, a mathematical model has been developed that imitates the movement of the belt transmission mechanism of the stand. Based on the developed mathematical model, calculation experiments were carried out using the Runge-Kutt numerical method, the results made it possible to find the motion parameters of the belt transmission mechanism of the stand. The results obtained when solving the mathematical model of the belt transmission mechanism of the stand made it possible to determine the parameters of movement of the stand engine and the drum. This article presents the results of determining the stiffness and elasticity coefficients of the belt, the moment of resistance of the drum, the driving moment of the driving pulley, angular speed, angular rooting, the moment of inertia of the driving and driven pulleys by compiling a mathematical model of the Laboratory Stand Small Soil Channel that imitates the working process of tillage and sowing machines.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of small soil channel laboratory stand drive and evaluation of its energy state

Alimova

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The quality indicators of seed distribution during sowing are significantly lower than other similar seeders (the coefficient of variation in seed distribution in a row is about 45% at an aggregate speed of 2 m/s and a seeding rate of up to 15 pcs/m). Because of this, the distribution of seeds in a row is transformed, and the uneven placement of plants leads to a crop shortfall [5,6]. The main disadvantage is that these planters do not provide precise seeding of cotton in the soil and climatic conditions of Uzbekistan.…”

Section: Precise Sowing Of Cottonmentioning

confidence: 99%

Optimization of the parameters of the pneumatic feed mechanism for precise clustered sowing

Alimova,

Saidova,

Primqulov

et al. 2024

BIO Web Conf.

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The article is devoted to the description of one of the ways to improve the mechanization of sowing, namely, precise sowing in a clustered way. It is analyzed that precise sowing provides a given placement of plants over the area and makes it possible increase productivity, to reduce labor costs for thinning plants, seed consumption and operating costs of the aggregates. Data are presented on the mechanization of sowing row crops in Uzbekistan, on the main advantages and disadvantages of the applied mechanical and pneumatic planters. It is noted that industrial pneumatic feed mechanisms do not meet the increased quality requirements for clustered sowing of cotton seeds in Uzbekistan and are one of the factors limiting the widespread introduction of intensive technology. An analysis is given of the need to develop a pneumatic feed mechanism for precise sowing of row crops in a clustered way for the soil and climatic conditions of Uzbekistan and the justification of its parameters. The data on the study of the technological process of sowing and the refinement of the parameters obtained in analytical calculations are presented. According to the results of experimental studies and tests, the correctness of the theoretical premises and the performance of the experimental feed mechanism were checked. The optimization of the main parameters and operating mode of the feed mechanism for precise sowing in a clustered way has been carried out. The data obtained in the experiments were processed using the PLANEXР program developed for the Personal Computer and regression equations were obtained that adequately describe the evaluation criteria. Therefore, to ensure maximum accuracy of sowing cotton seeds and perform the required quality of work at aggregate operating speeds of 1.66-2.24 m / s, the number of revolutions of the sowing disc should be 23.87-27.62 rpm, and the installation height of the feed mechanism should be within 9.02-9.24 cm. With these values of the factors, criterion Y1, i.e. the number of seeds in the cluster is 3.03-3.28 pieces, criterion Y2, i.e. the distance between the clusters is 14.00-15.57 cm, and criterion Y3, i.e., the length of the clusters is in the range of 0.95-1.12 cm, which meets the agro technical requirements.

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“…As a result, early and uniform germination of seeds, good development, of seedlings uniform distribution over the sown area is ensured. Such cotton sowing strategy significantly saves seeds, eliminates the operations of reseeding and thinning seedlings, facilitates the conditions for mechanized cultivation and increases the cotton yield [14].…”

Section: Introductionmentioning

confidence: 99%

Pneumatic feed mechanism for accurate sowing of bare cotton seeds

Alimova,

Saidova,

Sh Primkulov

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The article considers the development of machines that improve sowing and increase the quality of technological operations when sowing cotton. The studies have been carried out for three years in the zone of sharply continental climate of the Republic of Uzbekistan on typical gray soils. The factors influencing the decrease in the efficiency of crop production for the Central Asian region are analyzed. The purpose of the use of clustered sowing of cotton with a given number of seeds in the cluster is substantiated. The results of research on the development of a pneumatic feed mechanism with optimal parameters for accurate sowing of bare cotton seeds in a clustered method for the soil and climatic conditions of Uzbekistan are presented. The physical and mechanical properties of bare cotton seeds of industrial grades C-6524 and “Sulton” were studied. An improved design of a pneumatic feed mechanism is proposed, including a sowing disc with suction cells, which are made in the form of a triangle with rounded tops and with a bridge inside. In this case, the bridge has a Y - shaped form, abuts with its ends against the sides of the triangle. At the same time, a technical result is achieved, it consists in creating the best conditions for a rational group arrangement and reliable suction of cotton seeds in the cells of the sowing disk, which improves the accuracy of their group sowing into the cluster and stable formation of maximum accuracy clusters in the furrow. The data on the economic efficiency of the use of a pneumatic planter equipped with exact feed mechanisms with substantiated parameters for sowing bare cotton seeds by the clustered method are presented.

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Features of the choice of working bodies for the technology of strip tillage when sowing re-crops

Cited by 5 publications

References 9 publications

Mathematical modeling of small soil channel laboratory stand drive and evaluation of its energy state

Mathematical modeling of small soil channel laboratory stand drive and evaluation of its energy state

Optimization of the parameters of the pneumatic feed mechanism for precise clustered sowing

Pneumatic feed mechanism for accurate sowing of bare cotton seeds

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