Transport engineering Transport engineering Транспортное машиностроение 2782-5957 131030 10.30987/2782-5957-2026-7-18-30 Машиностроение Mechanical engineering Машиностроение ASSESSMENT OF THE IMPACT OF THE PULLEY OVALITY ON THE OPERATION OF BELT CONVEYOR ОЦЕНКА ВЛИЯНИЕ ОВАЛЬНОСТИ БАРАБАНА НА РАБОТУ ЛЕНТОЧНОГО КОНВЕЙЕРА https://orcid.org/0000-0002-1703-6654 Реутов Александр Алексеевич Reutov Aleksandr Alekseevich bgtu2012@yandex.ru

доктор технических наук;

doctor of technical sciences;

 Брянский государственный технический университет Брянск Россия Bryansk State Technical University Bryansk Russian Federation 30 07 2026 30 07 2026 2026 7 18 30 13 02 2026 05 06 2026 https://naukaru.ru/en/nauka/article/131030/view

Овальность барабана вызывает осцилляции угловых скоростей барабанов конвейера, может быть причиной резонансных колебаний и интенсивного износа ленты, просыпания груза, увеличения энергопотребления. Целью работы является определение влияния искривления цилиндрической поверхности обечайки приводного барабана на работу ленточного конвейера. Метод проведения работы: геометрический анализ и компьютерное моделирование движения ленты конвейера с овальным барабаном как многомассовой динамической системы с учетом механических характеристик привода, ленты с использованием программного комплекса «Универсальный механизм». Новизна работы состоит в анализе кинематических возмущений ленты конвейера при овальности и искривлении продольной оси обечайки барабана, создании компьютерной модели контактного взаимодействия ленты с овальным барабаном. Результаты. Разработана компьютерная многомассовая динамическая модель, позволившая установить характер движения ленты на приводном барабане с овальной обечайкой. Причиной возникновения осцилляций угловых скоростей барабанов, перемещений натяжного барабана является периодическое изменение момента силы трения ленты по поверхности приводного барабана вследствие изменения кривизны наружной поверхности овального барабана. Компьютерную модель и установленные закономерности можно использовать при проектировании ленточных конвейеров. Выводы. Превышение углом охвата лентой приводного барабана с овальной обечайкой величины 180  увеличивает неравномерность угловых скоростей вращения барабанов, вибрацию узлов. При использовании асинхронного привода овального барабана неравномерность угловых скоростей барабанов в несколько раз меньше по сравнению с приводом с постоянным крутящим моментом.

The pulley ovality causes fluctuations in the angular velocities of the conveyor pulleys, which can cause resonant vibrations and intense wear of the belt, spillage of cargo, and increased energy consumption. The paper objective is to determine the effect of cylindrical surface warp of the drive pulley shell on the operation of the belt conveyor. Study method: geometric analysis and computer simulation of the movement of the conveyor belt with an oval pulley as a multi-mass dynamic system, taking into account the mechanical characteristics of the belt drive, using the Universal Mechanism (UM) software package. The novelty of the work consists in the analysis of kinematic excitations of the conveyor belt in ovality and warp of the longitudinal axis of the pulley shell, and the development of a computer model of the contact interaction of the belt with an oval pulley. Results. A computer multi-mass dynamic model is developed, which makes it possible to determine the nature of the belt movement on an oval-shaped drive pulley. The cause of oscillations of pulley angular velocities and the movements of the tension roll is the periodic change in the moment of friction of the belt on the surface of the drive pulley due to a change in the warp of the transverse surface of the oval pulley. A computer model and found patterns can be used in the design of conveyor belts. Conclusions. Exceeding the belt coverage angle of the drive pulley with an oval shell of 180° increases the unevenness of angular speeds of pulley rotations and the vibration of units. When using an asynchronous oval pulley drive, the irregularity of pulleys angular velocities is several times less than with a constant torque drive.

 ленточный конвейер привод барабан овальность колебания компьютерная модель механизм conveyor belt drive pulley ovality vibrations computer model mechanism

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