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5. Definitions of various cache algorithms. [Электронный ресурс]. Режим доступа https://www.usenix.org/legacy/events/usenix01/full_papers/zhou/zhou_html/node3.html/ (дата обращения: 18.05.2020).
DEVELOPMENTAL STUDY OF COTTON STALK PULLER
PERFORMANCE
1 2 Tursunov O.A. , Biloldinov &Z.
Email: Tursunov689@scientifictext.ru
1Tursunov Oybek Abduhalim ugli - Assistant Lecturer, AUTOMOTIVE ENGINEERING DEPARTMENT; 2Biloldinov Husanboy Zafar ugli - Master's degree Student, AUTOMOTIVE ENGINEERING FACULTY, ANDIJANMACHINE-BUILDING INSTITUTE, ANDIJAN, REPUBLIC OF UZBEKISTAN
Abstract: most part of the cultivated area in Uzbekistan is devoted to cotton production. Manual pulling of cotton stalks after cotton picking is difficult and time consuming for the manual power, which could be devoted to some other productive work. In order to overcome these problems, a study was carried out on designing the mechanization for pulling and baling cotton stalks in one tillage, by changing the existing version of Cotton Stalk Puller called "Grubber-swather". This article describes the research results and technical and economical features of the newly designed mechanization as well as work productivity of it. Keywords: cotton stalk; cotton stalk puller.
ИССЛЕДОВАНИЕ РАЗВИТИЯ ПРОИЗВОДИТЕЛЬНОСТИ
КОРЧЕВАТЕЛЯ СТЕБЛЕЙ ХЛОПЧАТНИКА
12 Турсунов О.А. , Билолдинов Х.З.
1Турсунов Ойбек Абдухалим угли - ассистент, кафедра автомобилестроения; 2Билолдинов Хусанбой Зафар угли - магистрант,
факультет автомобилестроения, Андижанский машиностроительный институт, г. Андижан, Республика Узбекистан
Аннотация: большая часть посевных площадей в Узбекистане отведена под производство хлопка. Ручное вытягивание стеблей хлопчатника после сбора хлопка является трудным и трудоемким для ручного труда, который может быть посвящен какой-то другой продуктивной работе. Для преодоления этих проблем было проведено исследование по проектированию механизации вытягивания и прессования хлопковых стеблей в одну обработку почвы путем изменения существующей версии устройства для удаления хлопковых стеблей под названием «Корчеватель-валкоукладчик». В данной статье описываются результаты исследований и технико-экономические особенности вновь проектируемой механизации, а также производительность труда рабочих. Ключевые слова: стебли хлопчатника, корчеватель-валкоукладчик.
UDC 631.358
INTRODUCTION
Cotton is a versatile fiber crop, grown commercially in many countries throughout the world. According to [1] the benefits from using the cotton stalks are general such as renewable raw material to boards industries, generation of rural employment. It also used as a firewood for households. Moreover, pull of old roots and stems is needed to combat plant diseases.
Many people will be involved on daily wages in collecting, cleaning and chipping cotton stalks. Manual pulling of cotton stalks is difficult and time consuming for the manual power, which could be devoted to some other productive work. Therefore, planning, and development are needed to develop equipment and methods to meet the requirements of stalks clearing. Stated that in conventional method, cotton stalks and their roots were removed using deep tillage and stalks were gone and scattered during forward movement of tractor, whereas the remains were mixed with the soil. After that, people must be involved in collecting and baling cotton stalks [2]. The disadvantages of conventional method are spending more money and time to perform collecting and baling the stalks.
Therefore, designed a mechanization, which can pull and bale four rows of cotton at same time.
DESCRIPTION OF NEW MECHANIZATION
In this research in order to overcome these problems, the mechanization was designed for pulling and baling cotton stalks in one tillage by changing existing version of cotton stalk puller called Grubber-swather. To finding proper conditions of machine performance, there are some variable parameters in machine, which the level of this variation was found using theoretical methods. By changing of parameters in determined level, appropriate combination will be achieved to get the most machine efficiency.
As mentioned in this research, the machine was designed with 4 rows in 1 pass (see figure 1). Each rows has rippers that were placed in series. Distance between rippers is at the same point to cotton rows. They pluck up the cotton stalks and their roots from the soil, and three-ply cogwheel-disc followers provide the stalks not to be scattered and collect all four row's stalks in one. Each triple of cogwheel-discs are driven by a tractor with propeller shaft. Cogwheel-disc followers are fitted to the frame as depth of discs and are easily height adjustable for differing field conditions.
Fig. 1. Scheme of the mechanization: 1 - disc follower, 2 - rippers, 3 - wall, 4 -baling mechanism, 5 - needle, 6 - former
Collected stalks in one row come face to next part of mechanization called baling mechanism (see figure 1). Baling mechanism consists of knotter disc, knotting finger, gear
wheel, twine holder, knife, needle, etc. baling mechanism also is driven by a tractor with the same propeller shaft with rippers [6].
When the correct size of bale is achieved, a mechanism wraps the bale with twine and ties it securely. The twine is carried on spool and fed through a curved needle that is timed to miss the cycle of the plunger. After the twine is in place, a gear mechanism called a knotter ties the knot and cuts the twine free of the supply spool. All of this motion occurs in less than two seconds. After it is tied, the bale is pushed down the bale chute and falls to the ground [7].
Fig. 2. Scheme of baling mechanism: 1 - knotter disc, 2 - knotting finger, 3 - knotter body, 4 -
twine holder, 5 - knife
CONCLUSION
In Uzbekistan cotton ripens in September and collected the roots and stems in November. And the stalks are usually fresh (humid) when it is collected. If s impossible to bale the fresh stalks in big pressed square bales for precaution of stalks rot. So that there is a need for baling in non-pressed small bale.
Nowadays winter wheat is used to sow in cotton rows after first picking up. (because wheat should be sowed in September-October in Uzbekistan). The problem is when cotton stalks are pulled, the wheat seedlings will be putted of.
By implementing this theoretical study a mechanization can be constructed that can pull and bale simultaneously by changing existing versions of cotton stalk puller named Grubber-swather. Resulting in it, the harvesting process of stalks and cleaning cotton fields will be accelerated and simplified after picking cotton up. Additionally, it enables to sow winter wheat in early deserted fields.
References / Список литературы
1. Patil G., Shaik H., Balasubranarrya M., Liker P., Varadarjan V. Cotton plant stalk-An Alternative Raw material to Board on cotton industry. Central institute for research on cotton technology. Mumbai 400019 India, 2006.
2. Gadir Elnougomi. A., Gibreel, Taief M. Development of tractor operated cotton stalk puller. American Journal of Experimental Agriculture 3 (3), 2013.
3. Sarkari М., Minaee S. Evaluation of a cotton stalk puller performance. American-Eurasian Journal of Sustainable Agriculture. 2 (1): 19, 2008.
4. Bianchini Aloisio, Borges Pedro H. de M. Evaluation of cotton stalks destroyers. The Journal of Engenharia Agrícola. № 5 Jaboticabal. Sept./Oct. 2013.
5. Cotton stalk puller. [Electronic Resource]. Multi farming systems Company. URL: http://multifarmingsystems.com.au/products/cotton-stalkpuller/ (date of access: 04.06.2020).
6. Adjustment of the knotter in big baler. [Electronic Resource]. URL: http://ebraheemseleman.blogspot.com/2013/07/adjustment-of-knotter-in-big-baler-1.html/ (date of access: 04.06.2020).
7. Hay Baler. [Electronic Resource]. Hay Baler Forum. URL: http://www.madehow.com/Volume-2/Hay-Baler.html/ (date of access: 04.06.2020).
SOLAR ENERGY APPLICATIONS FOR REFRIGERATED TRUCKS Tursunov О.А.1, Holikov N.2, Vohobov R.3 Email: Tursunov689@scientifictext.ru
1Tursunov Oybek Abduhalim ugli - Assistant; 2Holikov Nasobidin - Student; 3Vohobov Rustam - Assistant, AUTOMOTIVE ENGINEERING DEPARTMENT, ANDIJAN MACHINE-BUILDING INSTITUTE, ANDIJAN, REPUBLIC OF UZBEKISTAN
Abstract: most perishable food products are transported with refrigerated trucks. It requires additional energy costs due to the running the refrigeration system. In Uzbekistan, there are more than 300 sunny days and using solar energy to refrigerate the isothermal trucks' board. The feasibility study was carried out on using solar energy in the refrigeration system of isothermal trucks. In this article, the technical and economical properties of transport applications of solar energy were analyzed. Some results and the design of proposed additional parts were given. Keywords: solar energy, refrigeration, isothermal trucks.
ПРИМЕНЕНИЕ СОЛНЕЧНОЙ ЭНЕРГИИ ДЛЯ ХОЛОДИЛЬНЫХ
ГРУЗОВИКОВ
1 2 3
Турсунов О.А. , Холиков Н. , Вохобов Р.
1Турсунов Ойбек Абдухалим угли - ассистент; 2Холиков Насобидин - студент; 3Вохобов Рустам - ассистент, кафедра автомобилестроения, Андижанский машиностроительный институт, г. Андижан, Республика Узбекистан
Аннотация: большинство скоропортящихся пищевых продуктов перевозятся на рефрижераторах. Это требует дополнительных затрат энергии из-за работы системы охлаждения. В Узбекистане более 300 солнечных дней и солнечная энергия используется для охлаждения изотермических бортов грузовых автомобилей. Было осуществлено технико-экономическое обоснование использования солнечной энергии в холодильной системе изотермических грузовиков. В этой статье были проанализированы технические и экономические свойства транспортных применений солнечной энергии. Некоторые результаты и дизайн предлагаемых дополнительных частей были даны.
Ключевые слова: солнечная энергия, охлаждение, изотермические грузовики.
UDC 629.3
