Практическая реализация линейных импульсных электромеханических преобразователей в промышленных устройствах

Abstract

Разработана математическая модель линейного импульсного электромеханического преобразователя индукционного типа. Установлено, что в исполнительном механизме чередующего реле локально возникают более высокие силы, но скорость якоря выше в исполнительном механизме дублирующего реле. Исследовано устройство очистки проводов ЛЭП, в котором на провод действует двойной удар, вызванный прямым и обратным ходом якоря. Исследован бункер с двумя устройствами ударно-механической очистки. Показано, что для обеспечения равномерной очистки всей поверхности бункера целесообразно устройство с якорем, а для локальной очистки – устройство без якоря.

A mathematical model of a linear pulsed electromechanical transducer induction type, which describesultrafast electromagnetic, thermal and mechanical processes that appear when you move the anchor relative to the inductor, is developed. The mathematical model uses the finite element method with a "deformable" mesh in integrating the spatial variables and improved method Gere in theintegration over time. It is shown that the electromechanical processes in linear pulsed electromechanical transducer are complex, time-space character, and every time there is a significant spatial non-uniformity of the induced current density in the armature current. We consider the operation of the actuators of the two types of high-speed relays: enable or disable alternate in position when the control pulse and the main backup control signal. It is shown that in the actuator relays alternates occur locally higher electrodynamics’ forces, but the armature speed up the backup in the actuator relay. Experimental studies of models of executive relays mechanisms were held, which up to 6.5% in the calculated consistent performance. It is investigated experimental layout of transmission line wire cleaning device, which acts on the wiredouble blow caused by the directand reverse motion of the armature, so that there is shaking adhering snow and ice cracking. The device helped to effectively get rid of the glaciers formed in thickness 2-5 mm and not allowed to form the newly formed. It is investigated experimental layout of hopper with two devices shock the mechanical purification of hang loose materials. The first device is located between the armature and the inductor winding of the hopper wall, and the second inductor coil device directly communicates with the hopper wall. It is shown that to ensure uniform treatment across the surface of the hopper it is advisable to anchor the device, and for local treatment - unit without an anchor.