The Main Problems of Scientific Support of Flax Growing

Rostovtsev, R.A.; Черников, В. Г.; Ущаповский, И. В.; Popov, Roman Andreevich

doi:10.22314/2073-7599-2020-14-3-45-52

Cited by 13 publications

(3 citation statements)

References 5 publications

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“…Например, для льнотеребильных машин качественными показателями будут параметры ленты льна -растянутость λ(t), расположение верхушечной y в (t) и корневой частей y к (t). Для льнокомбайна важный показатель качества так же чистота очеса n(t) [9,10]. area a(t), centimeters; and fi eld surface roughness z(t), centimeters.…”

Section: зерноуборочная техникаunclassified

Flax Harvesting Technologies for Flax Harvesting Machines

2023

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The technology of flax harvesting depends on input impacts, including: flax harvester qualitative characteristics; working body parameters; indicators of working conditions; intervening variables reflecting the dynamic properties of the working bodies and the dynamics of the flax flow input. (Research purpose) To establish patterns and the degree of correlation between the qualitative operation indicators (pulling and deseeding quality, flax line stretching); design parameters; machine dynamic properties and harvesting conditions (height and density of flax stem, field surface, thickness and unevenness of flax straw, etc.). (Materials and methods) Based on system analysis, mathematical models of the technological process of flax harvesting were developed. Information models were introduced for examining the main flax harvesters. (Results and discussion) The paper shows that the most typical indicators of the flax harvester working conditions are the flax stem height l(t), centimeters; the seed pod area a(t), centimeters; and field surface roughness z(t), centimeters. It is found that the quality of operation is determined by the deseeding quality, percentages; the flax straw stretching, times; the location of its apical and root parts, centimeters. The estimated indicators are as follows: the pulling height h(t), centimeters, the vibrations of the combine in the longitudinal-vertical plane Q(t), degrees, the location of the apical part of the flax flaw in front of the stripper. (Conclusions) A hydraulic device was developed to adjust the pulling height from 10 to 40 centimeters, depending on the flax stem. An important reserve for increasing the deseeding quality is the change in the width of the deseeding zone of the Vk harvester, centimeters. For this purpose, a mechanism was created for moving the deseeder against the clamping conveyor, depending on the flax stem height l(t), centimeters.

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Section: зерноуборочная техникаunclassified

Flax Harvesting Technologies for Flax Harvesting Machines

2023

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“…Создание отечественной сырьевой базы позволит сократить импортные поставки целлюлозного текстильного сырья и решить вопросы повышения экологической безопасности товаров народного потребления и здоровья нации [1]. Одним из приоритетных направлений в решении этого вопроса является увеличение урожайности льняного поля и повышение качества льнопродукции [2]. При выполнении технологических процессов механизмы и рабочие органы уборочных машин активно взаимодействуют с растениями льна-долгунца.…”

Section: тракторы и сельхозмашиныunclassified

Justification of the parameters of pulling sections of units with transverse channels

Rostovtsev,

Kovalev,

Perov

et al. 2023

Tractors and Agricultural Machinery

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BACKGROUND: In modern harvesting technologies, the main technological operation is mechanized crops pulling. The flax-pulling machine with transverse band-disc channels is the most promising. However, the basic design parameters of pulling sections are not justified sufficiently, the peculiarities of their layout are not considered, the processes of moving plants through sections and pulling short-stemmed flax are not sufficiently studied, which reduces the effectiveness of its use. AIMS: Theoretical and experimental justification of the parameters and operation modes of pulling sections of the device with transverse band-disc channels. METHODS: Experimental studies to justify the parameters and operation modes of experimental pulling machines were carried out according to known and developed methods, and the assessment of flax products was carried out according to current GOST standards. The influence of the velocity of the unit and the width of the grip of pulling sections on the indicators of the agrotechnical and technological assessment of the operation of pulling device was determined. RESULTS: Dependences for determining the design parameters of a pulling section and the minimum height of plant stand suitable for mechanized harvesting were obtained, the conditions for finishing and moving plants in the zone of fixed guides were established. The structures of the experimental pulling machines were used to assess the unit velocity, the effect of the width of a pulling section and the elimination of the separation of technological currents of plants during processing on improving agrotechnical performance and increasing the yield and number of long fiber. The frame elements of the TLN-1.9P unit, are placed above the pull pulleys, and the operating width of a section is 0.38 m. In the TLN-1.9M and the TLN-1.9K units, they are located behind the pull pulleys, with the operating width of a section of 0.35 and 0.31 m respectively. As a result, the flax straw had higher quality indicators: 1.5 numbers for the TLN-1.9M and the TLN-1.9K and 1.25 numbers for the TLN-1.9P; the average yield of long fiber of these units was 13.41, 13.1 and 12.59% respectively. CONCLUSIONS: When assembling pulling machines with transverse band-disc channels, the elements of the frame structure should be positioned behind pulling drums, technical solutions should be used to ensure the kinematic operation mode equal to one, with the operating width of a section of 0.31 m for harvesting seed breeding and 0.35 m for harvesting commercial crops.

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“…Задача совершенствования машин, создания новых рабочих органов для очеса и выделения коробочек и семян льна-долгунца является актуальной. Однако ее реализация сдерживается отсутствием научно обоснованных конструкторских и технологических решений [1][2][3].…”

Section: инновационные технологии и оборудование Innovative Technolog...unclassified

Technology and implementation of flax stripping in the primary flax processing line

Rostovtsev,

Chernikov,

Solovyov

et al. 2023

S-h. maš. tehnol.

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This paper investigates the utilization of an oscillatory-type working body for the stripping process within the primary ﬁber ﬂax processing line. It also introduces the equation governing the movement of this working body, thereby enabling the determination of the fundamental geometric parameters of the mechanism. (Research purpose) To develop the technology for ﬁber ﬂax stripping at a ﬂax mill using the proposed comb-type device, and to examine the parameters and modes of its functionality. (Materials and methods) A testing model was designed for a stripping machine, enabling an exploration of the ﬂax combing process within the factory. The limitations of the parameters under investigation were identiﬁed. Furthermore, a theoretical model was formulated to calculate the performance of the stripper. (Results and discussion) The operation kinematic mode, stripping cleanliness, and seed losses during the stripping process are determined through theoretical analysis. It is discovered that the quality of stripping is inﬂuenced by the thickness of the ﬂax ribbon. Speciﬁcally, an increase in the ﬂax straw's thickness results in the clogging of the stripping device, subsequently leading to the formation of tangles and entanglements on the working body. On the other hand, insuﬃcient thickness of the ﬂax ribbon leads to signiﬁcant damage to the stems. The limits for the thickness of the ﬂax ribbon are established considering both the potential minimum and maximum yields: the lower limit being 0.01 meters and the upper limit set at 0.05 meters. The application of the factory's stripping technology is expected to ensure a 10 percent reduction in seed losses and an additional 6 percent reduction in production costs. (Conclusions) Theoretical justiﬁcation for the parameters and operational modes of the stripper in the ﬂax processing line, along with its design, is provided. The feed speed of the ﬂax ribbon is conﬁgured to range between 1.0 and 1.5 meters per second, while the rotation frequency of the working body varies from 2.2 to 3.0 revolutions per second.

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The Main Problems of Scientific Support of Flax Growing

Cited by 13 publications

References 5 publications

Flax Harvesting Technologies for Flax Harvesting Machines

Flax Harvesting Technologies for Flax Harvesting Machines

Justification of the parameters of pulling sections of units with transverse channels

Technology and implementation of flax stripping in the primary flax processing line

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