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CONTROLLED ELECTRIC DOUBLE-MOTOR DRIVE OF LOW-POWER CIRCULAR SAWS

https://doi.org/10.26897/2687-1149-2022-1-65-71

Abstract

Using low-power circular saws in farm workshops is characterized by the variety of operating modes determined by the nature of cuts. To increase the efficiency of circular saws when cross-cutting wood, use can be made of inertial energy storage devices in the form of flywheels. However, with longitudinal cuts, the kinetic energy of the flywheels quickly dries up, and it takes a long time to replenish it. To reduce the restoration time of the required saw disk speed, the authors propose using the rotor of an auxiliary electric motor as a flywheel. The regulator automatically controls the auxiliary electric motor according to the current value in the power supply circuit of the main electric motor. To avoid self-oscillations of an unacceptably high frequency, the static characteristic of the regulator must contain a section with an ambiguity zone. This is achieved by using a Ladder Diagram and a logic gate or a microprocessor. The relay-contact circuit includes five electromagnetic relays, a time relay, and two magnetic starters. The time relay aims to eliminate false alarms by ensuring that the regulator is not susceptible to inrush current. To implement the algorithm for controlling an auxiliary electric motor, it is possible to use the logical elements "AND" and "OR," included according to the proposed scheme. An effective measure of increasing the reliability and reducing the regulator size is the use of the ARDUINO microprocessor together with semistors installed in the power circuits of circular saw motors. The controlled double-motor electric drive of the low-power circular saw reduces energy consumption when cross-cutting wood and improves working conditions and productivity when ripping.

About the Authors

SERGEI A. Andreev
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


NIKOLAY E. Kabdin
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


VLADIMIR F. Storchevoy
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


References

1. Фокин С.В. Деревообработка: технология и оборудование / С.В. Фокин, О.Н. Шпортько. 2-е изд., перераб. и доп. М.: ИНФРА-М, 2017. 203 с.

2. Агапов А.И. Оптимизация раскроя пиловочника крупных размеров: Монография. Киров: Вятский государственный университет, 2021. 407 с.

3. Богатырев Н.И. Практикум по электрическому приводу: Учебное пособие для вузов / Н.И. Богатырев, Н.С. Баракин, С.В. Оськин. Краснодар: КубГАУ, 2017. 306 c.

4. Андреев С.А. Управление двухдвигательным электроприводом маломощных циркулярных пил // Доклады ТСХА, 2018. Вып. 290. Ч. II. С. 170-172.

5. Кащун В.А., Мелехин Д.А., Бармин Б.П. Справочник заточника. М.: Машиностроение, 1967. 219 с.

6. Тимофеев Г.А. Теория механизмов и машин. 2-е изд., перераб. и доп. М.: Юрайт, 2012. 351 с.

7. Асинхронные двигатели серии 4А: Справочник / А.Э. Кравчик, М.М. Шлаф, В.И. Адомин, Е.А. Соболевская. М.: Энергоиздат, 1982. 594 с.

8. Хоровиц П., Хилл У. Искусство схемотехники: Пер. с англ. 2-е изд. М.: Издательство БИНОМ, 2014. 704 с.

9. Игошин В.И. Математическая логика и теория алгоритмов: Учебное пособие для студентов высших учебных заведений. 2-е изд., стер. М.: Издательский центр «Академия», 2008. 448 с.

10. Петин В.А., Биняковский А.А. Практическая энциклопедия Arduino. М.: ДМК Пресс, 2017. 152 с.

11. Алимов И.И. Асинхронные двигатели в трехфазном и однофазном режимах. М.: РадиоСофт, 2004. 128 с.


Review

For citations:


Andreev S.A., Kabdin N.E., Storchevoy V.F. CONTROLLED ELECTRIC DOUBLE-MOTOR DRIVE OF LOW-POWER CIRCULAR SAWS. Agricultural Engineering (Moscow). 2022;24(1):65-71. (In Russ.) https://doi.org/10.26897/2687-1149-2022-1-65-71

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ISSN 2687-1149 (Print)
ISSN 2687-1130 (Online)