Relevant bibliographies by topics / Machine-tractor unit

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Machine-tractor unit'

Author: Grafiati
Published: 30 May 2022
Last updated: 19 July 2025

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Journal articles on the topic "Machine-tractor unit"

1

Bulgakov, Volodymyr, Valerii Adamchuk, Volodymyr Nadykto, Volodymyr Kyurchev, and Ladislav Nozdrovický. "Theoretical Consideration of The Controllability Indicator of Machine-Tractor Unit Movement." Acta Technologica Agriculturae 20, no. 1 (2017): 11–18. http://dx.doi.org/10.1515/ata-2017-0003.

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Abstract The paper is focused on the issues of controllability of machine-tractor units based on wheel-type tractors during their non-straight driving on the soil surface, which is positioned at an angle to the horizon. There were obtained analytical expressions for the determination of the actual indicator of control λd, including both the power and the design parameters of the machine-tractor unit, which affect the abovementioned indicator in the longitudinal vertical plane. These expressions are obtained for the tractor driving on both road and also driving during field operation. In addition, the paper discusses the conditions under which there may occur the cross-slip of the tractor steering wheels in the transversal horizontal plane. As a result of this review, there were obtained the analytical expressions for determining the required indicator of the controllability λd of machine-tractor unit in the horizontal plane, excluding the possibility of lateral sliding of the unit by turning its steering wheels at a certain angle. These expressions are obtained for the two modes of the machine-tractor unit: for driving during transport on the road and during the operation in the field. The machine-tractor unit based on the wheel-type tractor with rear mounted 3-mouldboard plough was analytically investigated. By means of computer calculations, there was observed the fact that when moving in non-straight direction on the soil surface, inclined to the horizon at an angle of 12°, the machine-tractor unit is controllable only when the angles of the steering wheel of the given tractor do not exceed 9°. During the working movement (ploughing) of the given machine-tractor unit on an inclined field surface, its controllability will be preserved on condition that the angle of the tractor steering wheels does not exceed 11°. According to obtained results, it can be stated that the controllability of the machine-tractor unit is determined by the indicator of controllability, taking into account the value of the vertical load acting on the tractor steering wheels, the possibility of their turning in the horizontal plane, as well as the withdrawal of the machine-tractor unit from rectilinear motion and its movement on the field surface, inclined at an angle to the horizon.
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2

Semichev, Stepan V. "The Results of Field Test of the Mounted Attachment CHD-3." Elektrotekhnologii i elektrooborudovanie v APK 67, no. 2 (2020): 81–86. http://dx.doi.org/10.22314/2658-4859-2020-67-1-81-86.

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One of the ways of achieving landing accuracy is the control of the unit movement using navigator installed on the tractor, including autopilot systems that can correct the trajectory of the tractor. However, the straightness of tillage may be low. (Research purpose) The research purpose is in increasing the track stability of agricultural tools when cultivating row crops. (Materials and methods) The article proposes the use of a controlled attachment as part of a machine-tractor unit with navigation equipment installed on both a tractor and an agricultural tool, the use of which will significantly improve the accuracy of technological operations. The article presents the scheme, technical characteristics, and operating principle of the controlled attachment device. The article describes the method of conducting a field test of a machine-tractor unit with an installed controlled attachment. (Results and discussion) It was found that when cultivating without navigation equipment, the deviation from the axis was 62 mm; when cultivating with a machine-tractor unit with navigation equipment on a tractor it reaches 22 mm; when cultivating with a machine-tractor unit with a controlled CHD-3 attachment and navigation equipment on a tractor and cultivator it reaches 20 mm. The untreated area of the field by a machine-tractor unit with CHD-3 and navigation equipment on a tractor and cultivator was 0.27 square meters in relation to 0.45 square meters when processing the unit as part of a tractor with navigation equipment and a cultivator. (Conclusions) The use of tool control devices for cultivating rows of potatoes is impractical, since the straight movement of the planting machine along a given line is not guaranteed when planting potatoes. It was found that increased accuracy and further productivity will be achieved when using a controlled attachment on all operations of potato cultivation up to harvesting. The use of a controlled attachment device is advisable when cultivating crops that require high precision planting, for example, sugar beets.
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3

Godzhaev, Z. A., S. A. Vasilyev, S. A. Mishin, and E. V. Ruzanov. "Automated Machine-Tractor Unit for Grass Mowing." Agricultural Machinery and Technologies 19, no. 2 (2025): 64–71. https://doi.org/10.22314/2073-7599-2025-19-2-64-71.

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Recent advancements in robotics and automation have significantly contributed to the progress of precision agriculture. This study presents the development of an automated machine-tractor unit (MTU) designed for grass mowing, incorporating universal mechatronic control modules. (Research purpose) The purpose of this research is to design a functional and technological scheme for an automated machine-tractor unit and to develop universal mechatronic modules that can be mounted onto the mechanical control elements typically operated by a human driver. These modules are intended to enable the automated execution of the grass mowing process. (Materials and methods) A functional and technological scheme of the machine-tractor unit was developed. The unit consists of a remote control system, a tractor, an access control and management system (ACMS), and a technological implement. The methodology for the automatic control of the machine-tractor unit in an agro-landscape was described. A theoretical justification was provided for the design and technological parameters of the universal mechatronic modules used to control the clutch and braking systems. Calculations were conducted for the mechatronic module mechanism, including the determination of the screw drive gear ratio, screw travel, and nut displacement speed. A functional relationship was established between the pedal stroke velocity (change in pedal angle) and the nut displacement speed in the mechatronic actuation module. Control software for the universal mechatronic modules was developed using a programming language suitable for the selected controller. (Results and discussion) Automatic control of the machine-tractor unit was successfully implemented in an agro-landscape setting using a remote control panel, an LTZ-120B wheeled tractor, and a KRN-2.4 rotary mower. Field tests were conducted to evaluate the interaction between the control software and the hardware components of the universal mechatronic control modules. Comparative experimental studies were performed during straight-line mowing operations to evaluate the system performance under both manual control (with an operator) and automated control (using mechatronic actuators). (Conclusions) Preliminary tests of the automated agricultural machine-tractor unit demonstrated that its operational performance indicators remained within acceptable limits during mower-assisted operations. Specifically, the system achieved a productivity rate of 3.56 hectares per hour of effective operation, maintained a working speed of 10 ± 0.3 kilometers per hour, and ensured a grass cutting height of 8 ± 1 centimeters.
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4

Inshakov, A. P., O. F. Kornaukhov, and A. F. Filin. "A method of construction of measuring and computing system for machine-tractor units testing." Traktory i sel hozmashiny 79, no. 10 (2012): 14–15. http://dx.doi.org/10.17816/0321-4443-65971.

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The use of universal means of measurement of machine-tractor unit operation parameters in modern world technical inspection systems is analyzed. A scheme of a complex for the remote control of machine-tractor unit operation parameters is presented.
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Lysych, Mikhail. "RESEARCH OF DYNAMIC STABILITY OF THE MACHINE-TRACTOR UNIT ON THE VIRTUAL STAND." Actual directions of scientific researches of the XXI century: theory and practice 8, no. 1 (2020): 85–91. http://dx.doi.org/10.34220/2308-8877-2020-8-1-85-91.

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The questions of studying the dynamic stability of machine-tractor unit by the methods of multi-body dynamics (MBD) are considered. The study used a virtual stand created in CAD SolidWorks and CAE application SolidWorks Motion. It simulated the movement of the machine-tractor unit on the basis of the MTZ-82.1 tractor equipped with mounted modular implements. The motion surface has four different types of obstacles located in series in separate sections. To analyze the stages of the machine-tractor unit movement, we used the parameter of the lift height of the geometric center of each of the wheels above the supporting surface and the fact of the unit rollover. He showed that overcoming a single linear, single sequential and group linear obstacles at a speed of 3.22 m/s occurs without loss of stability. Only when overcoming a group sequential obstacle, significant fluctuations in the tractor frame are observed, however, due to the balancing suspension of the front wheels, they do not always lead to the rollover of the unit. In the future, using the developed virtual stand, it is possible to conduct studies of the dynamic stability of various configurations of the machine-tractor unit. In addition to the MTZ 82.1 tractor, models of other tractors can be used. It is also possible to change the geometry of obstacles, the angles of inclination of the supporting surface, speed mode, contact parameters, etc.
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Kambulov, S. I., V. B. Rykov, I. V. Bozhko, and V. V. Kolesnik. "Running gear of machine-tractor units and their influence on the quality of performed operations." Traktory i sel hozmashiny 84, no. 11 (2017): 15–20. http://dx.doi.org/10.17816/0321-4443-66330.

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The machine-tractor unit is a key element in an implementation of technological operations in the cropping. Running gears with wheeled and caterpillar propulsion device are used in the modern tractors. During an interaction of the ground with tractor propulsion devices, the ground is pulverized on one side and it is compacted on the other side during the slipping. Besides, the wheeled movers have the slipping several times higher than caterpillar movers. The aim of the research is an analysis of running gears of machine-tractor units and their influence on the quality of performed technological operations. The paper discusses an analysis of parameters of wheeled and replaceable caterpillar movers to the tractor K-701, which have the same dimensions. One of the main external influences on the unit is the surface profile of the field. The main source of tractor oscillations are the unevennesses of the way. At the same time, characteristic areas for the operation of machine-tractor units are very various, the most characteristic of them are a stubble field, a plowed field, a prepared field, a field road and others. The analysis of spectral densities of the surface profile of the field on which the tractor operates shows that with increasing speed, the spectral density decreases rapidly, and the maximum of the spectral density shifts toward higher values of the frequencies. It has been established that the frequency range, which has the greatest effect on the machine-tractor unit on the basis of the tractor K-701 on the replacement caterpillar mover 1...4 sec-1, on the wheel mover - 1...7 sec-1. The replaceable caterpillar mover for a 5 сlass tractor has significant advantages over a wheeled mover, since it filters (smoothes) 2,1...2,8 times more irregularities, which improves working conditions, smooth of running and other indicators of the machine-tractor unit.
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Gabitov, Ildar, Salavat Mudarisov, Albert Akhmetov, Ilshat Gainullin, and Ildar Rakhimov. "INCREASING THE EFFICIENCY OF THE USE OF A MACHINE-TRACTOR UNIT WITH A SOIL-WORKING SEEDING COMPLEX." Vestnik of Kazan State Agrarian University 17, no. 3 (2022): 73–76. http://dx.doi.org/10.12737/2073-0462-2022-77-80.

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The article deals with the issues of operation of a machine-tractor unit with a soil-cultivating sowing complex. Improving the efficiency of using machine-tractor units and the most complete realization of the technical potential inherent in them can be carried out on the basis of the development of automated control systems and monitoring the implementation of technological processes both by the tractor and the implement, as well as by the unit as a whole. The traction-power balance of a tractor with a soil-cultivating sowing complex when working under given conditions is considered. It is shown that the performance during operation can change by reducing the power loss to overcome the forces of rolling resistance. Theoretical dependences for determining the power and speed parameters of the machine-tractor unit during sowing with tillage and fertilization are given.
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Kehayov, Evgeni, Ivan Mitkov, and Georgi Komitov. "EXAMINATION OF THE VARIATION OF MTA POWER WHEN WORKING WITH OIL ANAMEGATORS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 22, 2024): 196–99. http://dx.doi.org/10.17770/etr2024vol1.8003.

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One of the main indicators of internal combustion engines, tractors and the machine-tractor unit as a whole it's the power. It can change in the process of operation and there comes a time when subsequent use is inadmissible or inexpedient. In such a state, it is appropriate to apply technology to improve this indicator and reduce the fuel or lubricant consumption. The power parameter of an agricultural power machine is essential to achieve high productivity with low operating costs with minimal environmental pollution. The monitoring of changing the power is generally carried out by equipment unbearable and unnecessary for the farmer. The possibility for determining the power of the tractor fitted with the working machine by means of a standard brake performance device is a suitable option for monitoring the technical condition of the machinery. In this way, timely detection of defects and prevention of serious consequences for the engine. Worldwide, various technological options have been developed to improve the power of engines without the need for their disassembly. One of these technological options is the fitting of anamegators (additives) in very small quantities to the engine lubricant oil. In this article is made the experiments to evaluating of the variation of the power performance of a diesel tractor engine treated with anamegators as part of a machine-tractor unit. The acceleration and speed of the machine-tractor unit is recorded through a specialized device ENERGOTEST SM4. On this basis of the experimental results obtained, the driving force and power of the tractor from the machine-tractor unit has been determined by theoretical relationships.
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Parhomenko, S. G., and G. G. Parhomenko. "Mathematical modeling of functioning of a tillage machine-tractor unit." Traktory i sel hozmashiny 85, no. 4 (2018): 55–62. http://dx.doi.org/10.17816/0321-4443-66405.

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The soil-cultivating machine-tractor unit undergoes continuously changing external influences that lead to fluctuations in the speed of movement, slippage of the tractor's driving wheels, loading of the transmission, and increased fuel consumption. The main sources of disturbances that cause the oscillations of the tractor are the unevenness of the traction resistance of the tillers and the unevenness of the field microprofile. The purpose of the research is to improve the process of functioning of the soil-processing machine-tractor unit by modeling of the influence of external action. The mathematical model of the process of operation of a wheeled tractor in the traction mode of operation is a machine-tractor unit in the form of a dynamic system with two input forces, determined by the load on the working elements and the roughness of the relief. The mathematical model includes the equations of the motor and the regulator, the clutch, the power transmission, the driving wheel and the longitudinal-vertical oscillations of the tractor. The solution of the mathematical model of the machine-tractor unit is based on the fourth-order Runge-Kutta numerical integration method at a constant step. Calculations are made for the motion of the unit with periodic sinusoidal disturbances applied to the input of the model. As a result of calculations, it is determined that the effect of the microfield of the field and the traction resistance of the working bodies on the performance of the machine-tractor unit is different. The greatest amplitudes of vertical accelerations are achieved due to the effect of field unevenness. Fluctuations in the speed of movement, hectare fuel consumption, engine torque are caused by the periodic component of traction resistance of low frequency, and slippage and driving torque of the wheels - as well as unevenness of the field microfilm. The average values of the slippage of the tractor's driving wheels and hectare fuel consumption are mainly affected by the oscillations of the traction resistance. The use of diagonal-parallel tires instead of radial makes it possible to reduce the slipping of the tractor's drive wheels from 24 % (when working on serial tires) to 16 % (on test tires) and to reduce the hectare fuel consumption by 6 %.
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Findura, Pavol, Katarína Kollárová, Volodymyr Nadykto, Volodymyr Kyurchev, and Ivan Zhokin. "Turning Research of a Sowing Unit Based on Reversible Tractor." Acta Technologica Agriculturae 27, no. 4 (2024): 194–202. http://dx.doi.org/10.2478/ata-2024-0026.

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Abstract Modern sowing machine-tractor units (MTU) can be divided into single-machine (single-module), two-machine (double-module), and three-machine (triple-module). The firsts, consisting of a tractor and a trailed/mounted seeder, are the most studied and, therefore, the most widespread. Two-module MTUs mainly use trailed or semi-mounted hitch and trailed seeders. The units of this type have been studied less. Three-module sowing complexes are even less common. Most are based on a trailed hitch and trailed seeders placed behind the tractor. There are samples of MTU with side-mounted seeding machines, but their knowledge is extremely insufficient. This paper examines a three-module MTU based on a tractor with reverse motion and a front semi-mounted hitch. One of the problems in using this sowing unit is the choice of design parameters that would ensure safe turning when manoeuvring on the headland. Theoretical and experimental studies have established that by increasing the side seeder’s towbar length, MTU’s safe turning under analysis with machines of a larger operating width can be performed with a smaller distance between their inner wheels and tractor’s wheels (parameter d). If the coincidence condition of side seeders’ wheel axes with the tractor wheels axe is met, an increase in the tractor track from 1.7 to 2.5 m allows for a decrease in the value of the distance d. This solution is especially effective when using seeders with an operating width of 3.6 m. In this case, the indicated decrease reaches a fivefold size, from 0.5 to 0.10 m. With the seeders’ operating width of 5.4 m, the distance d can only be reduced by 1.4 times. But with this option for sowing MTU, it is possible to use a tractor with dual rear tyres and a parameter d value of 0.98 m. Actual oscillations in the distance d value within 0.28 ±0.01 m in the process of turning the studied sowing machine-tractor unit at a velocity of 2.2 m·s−1 are characterized by low variance (0.64·10−4 m2) and low (no more than 1.75 Hz) frequency. This allows us to consider this MTU’s mode movement on the headland quite safe.
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Dissertations / Theses on the topic "Machine-tractor unit"

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Мітцель, Микола Олександрович. "Вплив особливих зон роботи гідропередачі на техніко-економічні показники колісних тракторів з безступінчастими гідрооб'ємно-механічними трансмісіями". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22578.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.22.02 – автомобілі та трактори. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2016 р. Дисертацію присвячено підвищенню техніко-економічних показників машинно-тракторних агрегатів оснащених гідрооб'ємно-механічними трансмісіями з диференціалом "на виході" за рахунок розміщення агротехнічних швидкостей в особливих зонах роботи гідрооб'ємної передачі. Складена комплексна математична модель особливих зон роботи гідрооб'ємної передачі, що дозволяє досліджувати робочі процеси в межах особливої зони. Розглянуто процес утворення особливої зони на висхідній та низхідній регулювальній характеристиці гідрооб'ємно-механічної трансмісії. Встановлено вплив режимів навантаження та конструктивних параметрів трансмісії на ширину особливої зони та загальний ККД трансмісії. Визначено вплив часу розгону колісного трактору на величину сплеску робочого тиску при виході з особливої зони. Сформульовано рекомендації до проектування перспективних схем трансмісій з диференціалом "на виході", що дозволять досягати максимального ККД трансмісії в межах швидкостей основних енергоємних сільськогосподарських операцій. Експериментальними дослідженнями визначено точність математичної моделі втрат в гідрооб'ємній передачі К. І. Городецького. Експериментально досліджено достовірність математичної моделі особливих зон на лабораторному стенді та колісному тракторі, та підтверджено рекомендації щодо перспективних схем гідрооб'ємно-механічних трансмісій з диференціалом "на виході".<br>The dissertation for obtaining a scientific degree of Candidate of Science (Technology) on the specialty 05.22.02 – automobiles and tractors. –National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2016. The dissertation is devoted to improving technical and economic indicators of machine-tractor units equipped input-coupled power-split hydrovolumetric mechanical transmissions by placing farming velocity in special areas of work hydrovolumetric transmission. Compiled complex mathematical model special zones of hydrovolumetric transmission that allows you to explore work processes within the special zone. The process of creation of special zones ascending for and descending regulating characteristics. The influence of the mode load and design parameters of the transmission to the width of the special zones and the overall efficiency of the transmission. The effect of time acceleration wheeled tractor a surge in the value of the operating pressure at the outlet of the special zones. Recommendations for the design of perspective schemes output coupled transmissions that will achieve maximum efficiency transmission speeds within the major energy intensive agricultural operations. Experimental studies determined the accuracy of the mathematical model of hydraulic losses in the transmission by K. Gorodetsky's mathematical model. Experimentally investigated the accuracy of the mathematical model of special zones on the laboratory stand and wheeled tractors, and found the references to perspective schemes input-coupled power-split hydrovolumetric mechanical transmissions.
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2

Мітцель, Микола Олександрович. "Вплив особливих зон роботи гідропередачі на техніко-економічні показники колісних тракторів з безступінчастими гідрооб'ємно-механічними трансмісіями". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22568.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.22.02 – автомобілі та трактори. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2016 р. Дисертацію присвячено підвищенню техніко-економічних показників машинно-тракторних агрегатів оснащених гідрооб'ємно-механічними трансмісіями з диференціалом "на виході" за рахунок розміщення агротехнічних швидкостей в особливих зонах роботи гідрооб'ємної передачі. Складена комплексна математична модель особливих зон роботи гідрооб'ємної передачі, що дозволяє досліджувати робочі процеси в межах особливої зони. Розглянуто процес утворення особливої зони на висхідній та низхідній регулювальній характеристиці гідрооб'ємно-механічної трансмісії. Встановлено вплив режимів навантаження та конструктивних параметрів трансмісії на ширину особливої зони та загальний ККД трансмісії. Визначено вплив часу розгону колісного трактору на величину сплеску робочого тиску при виході з особливої зони. Сформульовано рекомендації до проектування перспективних схем трансмісій з диференціалом "на виході", що дозволять досягати максимального ККД трансмісії в межах швидкостей основних енергоємних сільськогосподарських операцій. Експериментальними дослідженнями визначено точність математичної моделі втрат в гідрооб'ємній передачі К. І. Городецького. Експериментально досліджено достовірність математичної моделі особливих зон на лабораторному стенді та колісному тракторі, та підтверджено рекомендації щодо перспективних схем гідрооб'ємно-механічних трансмісій з диференціалом "на виході".<br>The dissertation for obtaining a scientific degree of Candidate of Science (Technology) on the specialty 05.22.02 – automobiles and tractors. –National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2016. The dissertation is devoted to improving technical and economic indicators of machine-tractor units equipped input-coupled power-split hydrovolumetric mechanical transmissions by placing farming velocity in special areas of work hydrovolumetric transmission. Compiled complex mathematical model special zones of hydrovolumetric transmission that allows you to explore work processes within the special zone. The process of creation of special zones ascending for and descending regulating characteristics. The influence of the mode load and design parameters of the transmission to the width of the special zones and the overall efficiency of the transmission. The effect of time acceleration wheeled tractor a surge in the value of the operating pressure at the outlet of the special zones. Recommendations for the design of perspective schemes output coupled transmissions that will achieve maximum efficiency transmission speeds within the major energy intensive agricultural operations. Experimental studies determined the accuracy of the mathematical model of hydraulic losses in the transmission by K. Gorodetsky's mathematical model. Experimentally investigated the accuracy of the mathematical model of special zones on the laboratory stand and wheeled tractors, and found the references to perspective schemes input-coupled power-split hydrovolumetric mechanical transmissions.
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Book chapters on the topic "Machine-tractor unit"

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Durmanov, M. Ya, B. G. Martynov, and S. V. Spiridonov. "How Parameters of Agricultural Machine and Tractor Unit Affects Effectively Used Mean Indicated Power." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22063-1_33.

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Antipin, V. P., M. Ya Durmanov, and O. A. Mikhailov. "Method to Reduce Oil Burning in Diesel Engine of Agricultural Machine and Tractor Unit." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22063-1_34.

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3

Startcev, A., S. Romanov, and O. Vagina. "Research into the Course Stability of a Four-Wheel Drive Wheeled Machine–Tractor Unit." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54814-8_70.

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Durmanov, M. Ya, B. G. Martynov, and S. V. Spiridonov. "Oil Consumption Through Burning in Heavy-Duty Operation of an Agricultural Machine and Tractor Unit." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54817-9_25.

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Senkevich, Sergey, Veronika Duryagina, Vladimir Kravchenko, Irina Gamolina, and Dmitry Pavkin. "Improvement of the Numerical Simulation of the Machine-Tractor Unit Functioning with an Elastic-Damping Mechanism in the Tractor Transmission of a Small Class of Traction (14 kN)." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33585-4_20.

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Kravchenko, Vladimir, Lyudmila Kravchenko, Victor Zhurba, Sergey Senkevich, and Veronika Duryagina. "Reducing the Dynamic Loading of the Links of the Machine-Tractor Unit Aggregated by the Mobile Power Vehicle of the 1.4 Drawbar Category." In Lecture Notes in Networks and Systems. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11051-1_210.

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Antipin, V. P., M. Ya Durmanov, and O. A. Mikhailov. "How the Parameters of an Agricultural Machine and Tractor Unit Affect the Wear of Friction Pairs in a Diesel Engine When Used for Transport." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54817-9_24.

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Krainiuk, Maksym, and Oleh Shcherbak. "Intelligent Technologies for Optimising the Workplaces of Tractor Drivers: Safety and Comfort in Modern Machine and Tractor Units." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87376-8_19.

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Slepenkov, Alexander, Evgeny Kuznetsov, Sergey Shchitov, Tatiana Sharipova, Olga Shchegorets, and Andrey Burmaga. "Improving the Efficiency of Wheel-Wheeling Machine-Tractor Units in Areas with Special Natural and Climatic Conditions." In Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2021). Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91402-8_5.

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Senkevich, Sergey, Vladimir Kravchenko, Pavel Lavrukhin, Pavel Ivanov, and Anna Senkevich. "Theoretical Study of the Effect of an Elastic-Damping Mechanism in the Tractor Transmission on a Machine-Tractor Unit Performance While Sowing." In Handbook of Research on Smart Computing for Renewable Energy and Agro-Engineering. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1216-6.ch017.

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The chapter deals with a numerical simulation of a machine-tractor unit with an elastic-damping mechanism installed between an engine and a tractor transmission while fulfilling an agricultural performance (sowing). The mechanism is a complex system. The description of an elastic-damping mechanism shows all its advantages. There has been given a theoretical substantiation of a transparency level effect on a machine-tractor unit performance while sowing. The purpose of the work is to conduct theoretical study to identify the effect of an elastic-damping mechanism in a tractor transmission on working characteristics of a sowing machine. There has been obtained a regression equation and identified optimum parameters of an elastic-damping mechanism installed in a tractor transmission. There has been also given a substantiation of an expediency to install an elastic-damping mechanism in a tractor transmission for sowing grain crops.
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Conference papers on the topic "Machine-tractor unit"

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Kehayov, Evgeni, Karlis Pigoznis, Georgi Stanchev, and Georgi Komitov. "Determination of Greenhouse Gases Emitted by Machine-Tractor Unit by Fuel Consumption." In 2024 5th International Conference on Communications, Information, Electronic and Energy Systems (CIEES). IEEE, 2024. https://doi.org/10.1109/ciees62939.2024.10811183.

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Egorov, Nikolay, Farit Khaliullin, Zulfia Khaliullina, and Larisa Zimina. "Adaptive support for power units of machine-tractor unit." In 19th International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering, 2020. http://dx.doi.org/10.22616/erdev.2020.19.tf454.

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Leonov, Vladimir V., Roman O. Surin, Evgeny V. Marshanin, and Evgeny E. Kuznetsov. "Estimated efficiency of a promising machine-tractor unit." In Актуальные вопросы энергетики в АПК. Дальневосточный государственный аграрный университет, 2022. http://dx.doi.org/10.22450/9785964205777_162.

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Marshanin, Evgeny V., Roman O. Surin, Vladimir V. Leonov, and Evgeny E. Kuznetsov. "Increasing the supporting cross-country ability of a wheeled machine-tractor unit." In Актуальные вопросы энергетики в АПК. Дальневосточный государственный аграрный университет, 2022. http://dx.doi.org/10.22450/9785964205777_174.

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Bulgakov, Volodymyr, Semjons Ivanovs, Valerii Adamchuk, et al. "Treatment quality assessment of sunflower inter-row widths with asymmetric joining of cultivator to tractor." In 22nd International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering, 2023. http://dx.doi.org/10.22616/erdev.2023.22.tf163.

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Almost all existing units for mechanical processing of inter-row widths of row crops (corn, sunflower, soybeans, etc.) are symmetrical. In this case, the ratio of the tractor track to the row crop’s inter-row widths is an even integer (k). This article presents the study results of a machine-tractor unit in which the value k equals 3; that is, it is odd. As a result, an asymmetric unit was obtained, in which the cultivator is displaced in the transverse direction relative to the tractor symmetry axis by half the inter-row width, equal to 70 cm. The width fluctuations of sunflower plant protective zone formed by such machine-tractor unit are rather low-frequency. At a speed of 1.9 m·s-1, the main variance spectrum of these oscillations is concentrated in the frequency range 0-0.9 m-1 or 0-0.27 Hz. With an increase in the unit movement speed to 2.4 m·s-1, this diapason narrows to 0-0.6 m-1 (0-0.23 Hz). At the same time, an increase in the movement speed of the studied unit from 1.9 to 2.4 m·s-1 did not lead to a significant change in the mean of the width and variance of the sunflower row protective zone oscillations. The actual difference between the means of this zone (0.6 cm) turned out to be less than LSD05, equal to 0.8 cm. In addition to this, the null hypothesis about the equality of the compared of this parameter fluctuation variances was confirmed. Calculations have established that the possible deviation frequency of the sunflower plant protective zone width actual value of ± 1 cm from the established one can reach 0.007 m-1 or one release per 143 m of the path travelled by the unit at a speed of 1.9 m·s-1. When the machine-tractor unit moves in the sunflower inter-row widths at a speed of 2.4 m·s-1, the value of this indicator is 0.009 m-1 or one release per 111 m of the path. According to the results of experimental studies, real damage (cutting) of sunflower plants for both unit operation modes did not exceed 0.9%. The weed destruction in the inter-row widths of this crop was 98.5%.
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Zaharchuk, Victor, Oleh Zaharchuk, Mykola Tolstushko, and Nataliya Tolstushko. "Improving performance of wheeled tractor with gas engine as part of transport machine unit." In 23rd International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering and Information Technologies, 2024. http://dx.doi.org/10.22616/erdev.2024.23.tf091.

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Increasing requirements for the environmental performance of agricultural transport vehicles require improvement of their design that will reduce emissions of harmful substances from exhaust gases. A method of estimating fuel efficiency and environmental performance of a wheeled tractor with a gas engine when performing transport works has been developed. A mathematical model of the wheeled tractor movement along the driving cycle has been developed. The mathematical model used the results of experimental studies of a gas engine. Bench tests of a diesel engine that was converted into a spark ignition gas engine for operation on natural gas were performed and they confirmed its operability and showed good operational performance. A wheeled tractor was converted to run on gas fuels using the same technology and elements. Its test results showed that there are certain peculiarities of driving such tractor due to the fact that the diesel tractor engine is equipped with an all-mode crankshaft speed regulator which is not used in a gas engine. A driving cycle was chosen to study the performance of a wheeled tractor when performing transport works. Environmental indicators and fuel consumption of a specific engine, that are used in the mathematical model, are described by polynomial models based on its experimental characteristics. Using the mathematical model of tractor movement during the driving cycle, the appropriate ways of controlling the transmission and gas engine during tractor movement were determined, in particular, the proper order of gear shifting when the tractor is accelerating. The total emissions of harmful substances during the driving cycle of a tractor both with a gas engine and a diesel engine were calculated, which prove the environmental feasibility of using gas fuel. The total toxicity of exhaust gases, reduced to carbon monoxide CO, of a tractor with a gas engine is 1.9 times lower than of a diesel engine.
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Samsonov, V. A., and Y. F. Lachuga. "TRACTION CHARACTERISTICS OF A TRACTOR WITH HIGH ENERGY SATURATION." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. DSTU-Print, 2020. http://dx.doi.org/10.23947/itno.2020.16-20.

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The efficiency of the machine-tractor unit depends on the operational energy saturation of the tractor, which is determined by the optimal ratio of the engine's operating power to the tractor's operating weight. The operational energy saturation depends on the operation performed. Conditional energy saturation is a constant indicator equal to the ratio of the rated power of the tractor to its operating weight. The article describes a method for calculating the traction characteristics of a wheeled tractor with an energy saturation of more than 23 W/kg.
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Shishkin, A. M., and I. S. Koshegarov. "MACHINES AND MECHANIC MEANS FOR FOREST PROTECTION FROM PESTS AND DISEASES IN THE REPUBLIC OF KAZAKHSTAN." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS Volume 2. DSTU-Print, 2020. http://dx.doi.org/10.23947/interagro.2020.284-286.

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The article presents a modern set of machines, mechanization tools and equipment for protecting the forest from pests and diseases in the Republic, the name and brand of machines, the traction class of the tractor with which these machines or their electric drive are aggregated. The main technical parameters are: performance per 1 hour / shift, total machine weight (kg), maintenance personnel, unit width (m) and tank capacity (l), if included in the design of the machine. Some list and conditions for performing technological works are also shown.
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Matmurodov, Farkhod, Bozorboy Sobirov, Sherzodbek Akhmedov, Isomiddin Tulanov, Esirgap Turapov, and Sayfidin Asamov. "Numerical experiment of energy consumption and differences of effective use of mini-grapping and wide-grooving machine-tractor unit." In 2021 ASIA-PACIFIC CONFERENCE ON APPLIED MATHEMATICS AND STATISTICS. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0089472.

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Kokunova, I. V. "INTELLIGENT SOLUTIONS IN THE CONSTRUCTION OF MODERN BALING MACHINES." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. DSTU-Print, 2020. http://dx.doi.org/10.23947/itno.2020.208-212.

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The article shows the role of digital machine technologies used in feed production. The analysis of intelligent solutions used in the designs of modern balers from the world's leading manufacturers of agricultural machinery is carried out. It is noted that electronic systems not only perform information functions during the operation of forage harvesters, but also provide control over the operation of both individual assemblies and systems of balers, and the entire machine-tractor unit. Digital technologies make it possible to optimize the operation of the forage harvester, improve the quality of harvested forage, reduce environmental risks, improve the working conditions of machine operators, as well as increase the attractiveness and prestige of agricultural professions, and attract promising young personnel to agricultural production.
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