Electromechanical transmission for tractors and road-building machinery

Abstract

The article considers variants of kinematic schemes of two-stream transmissions for agricultural tractors and road construction machines. The possibility of using an electromechanical transmission as part of this transmission is considered. The prospect of improving the operational properties of this technique by modernizing the power plant and transmission with the maximum use of serial units in its composition, primarily gearboxes, is analyzed. In this case, the possibility of using a serial transmission in combination with a more powerful engine in a tractor’s transmission is considered. For this purpose, the concept of a dual-line transmission is proposed, where part of the engine power is transmitted bypassing (in parallel) the gearbox. Several possible kinematic schemes of this transmission are considered. A comparative analysis of design options is carried out, where the parallel transmission branch is hydromechanical, mechanical, electromechanical. As a result of the analysis, the concept of a two-stream transmission with electromechanical transmission in a parallel flow is proposed as a promising option for an agricultural tractor. The order and calculated dependencies for determining the main parameters and characteristics of transmission elements of this type are given. The possibility of using the proposed transmission is considered for a promising agricultural 6-8 class wheeled tractor. At the same time, the kinematics of this transmission were analyzed, the gear ratios were calculated, and the characteristics of its main elements were determined. The directions of development of such structures are formulated.

Keywords

agricultural tractor / transmission / gearbox / power distribution mechanism / second power flow

References

[1] Бойков А.В., Шувалов Е.А., Добряков Б.А. Теория и расчет трактора «Кировец» / Под общ. ред. А.В. Бойкова. Л.: Машиностроение, 1980. 208 с.

[2] Шарипов В.М. Конструирование и расчет тракторов: Учебник для студентов вузов. 2-е изд. М.: Машиностроение, 2009. 752 с.

[3] Bukashkin A.Yu., etc. Procedia Engineering Vol. 206 (2017). pp. 1728-1734.

[4] Демидов Н.Н., Дидиков Р.А. Фрикционные механизмы поворота в двухпоточных трансмиссиях транспортных гусеничных машин // Тракторы и сельскохозяйственные машины. 2019. № 1. С. 60-69.

[5] Галышев Ю.В., Григорьев А.П., Добрецов Р.Ю., Лозин А.В. Замкнутые системы управления поворотом гусеничных машин // Научно-технические ведомости СПбГПУ, сер.: Наука и образование. С. Петербург. 2014. № 3(202). С. 201-208.

[6] Lozin A.V., Medvedev M.S., Kravchenko O., Guzeev V. Hyperbolic Steering for Tracked Vehicles // Proceedings of the 4th International Conference on Industrial Engineering. ICIE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. pp 2367-2374.

[7] Носов Н.А., Галышев В.Д., Волков Ю.П., Харченко А.П. Расчет и конструирование гусеничных машин / под ред. Н.А. Носова. Л.; Машиностроение, 1972. 559 с.

[8] Porshnev G.P., Dobretsov R.Yu., Uvakina D.V. Performance improvement of Arctic tracked vehicles // MATEC Web of Conferences 245, 17001 (2018). EECE-2018.

[9] Григорьев И.В., Иванов В.А. Увеличение подвижности гусеничных вездеходов для вахтовых лесозаготовок // Системы. Методы. Технологии. 2016. № 2. С. 114-119.

[10] Лозин А.В., Семенов А.Г. Гибридный механизм распределения мощности в трансмиссии транспортной машины: патент на изобретение № 2658486 Российская Федерация. опубликовано 21.06.2018, Бюл. № 18.

[11] Шеломов В.Б. Теория движения многоцелевых гусеничных и колесных машин. Тяговый расчет криволинейного движения: учебное пособие для вузов по специальности «Автомобиле- и тракторостроение» / Санкт-Петербург: Изд-во Политехн. ун-та, 2013. 90 с.

[12] Bukashkin A.Yu., Galyshev Yu.V., Dobretsov R.Yu. Split Transmission of Tractor with Automatic Gearbox. Procedia Engineering Vol. 206 (2017). pp 1728-1734.

[13] Lozin A., Radionov A., Kravchenko O., Guzeev V., Rozhdestvenskiy Y. Hyperbolic Steering for Tracked Vehicles. Proceedings of the 4th International Conference on Industrial Engineering. ICIE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. Pp. 2367-2374.

[14] Hoodorozhkov S., Krasilnikov A., Zakhlebayev E. Digital simulation of physical processes in vehicles engine power units // RRTSS - International conference on research paradigms transformation in social sciences, 2018. doi.org/10.1051/shsconf/20184400038.

[15] Dobretsov R., Galyshev Yu., Porshnev G., Didikov R., Telyatnikov D., Komarov I. Transmission of the Perspective Wheel Tractor with Automatic Gearbox // International Review of Mechanical Engineering (IREME), Vol. 12, No 9. (2018). Pp. 790-796. DOI: https://doi.org/10.15866/ireme.v12i9.15646.

RIGHTS & PERMISSIONS

Porshnev G.P., Dobretsov R.Y., Krasilnikov A.А.