ОБҐРУНТУВАННЯ ВИБОРУ ФОРМИ ІНДУКТОРА ДЛЯ МАГНІТНО-ІМПУЛЬСНОЇ ОБРОБКИ ВЕЛИКОГАБАРИТНОГО ЗУБЧАСТОГО КОЛЕСА

Abstract

Reducing products cost, and currently increasing the environmental friendliness of technological processes, is the main goal of machine-building production. Achieving these goals can be, in particular, due to the introduction of new processing methods. One of which is magnetic pulse processing(MPP). Using this method requires the use of special equipment, such as a magnetic inductor.The article proposes the use of a specially shaped inductor to strengthen the surface layer of the teeth of a large-sized gear wheel. The considered types of winding for the manufacture of a production coil of inductance from the point of view of the direct effect on the areas of the tooth with the greatest wear. Applying the Biot -Savart -Laplace law to calculate the magnetic fields of linear conductors, a detailed calculation of the inductor was carried out. It showed that the proposed design cannot provide strengthening over the entire plane of the contact spot of the tooth, where the greatest wear occurs during the operation of the wheel. When applying magnetic pulse processing, it is necessary to pay great attention to the shape and type of inductor winding. The type of winding and the turns arrangement of the inductor coil are also limited by the design of thepart. Special design restrictions are established where it is necessary to process internal cavities. Such cavities include the spaces between teeth of gear wheels.The article states that the magnetic field of the inductor, which has a parallel winding and covers a tooth, has the greatestforce on the edges of the tooth, and not on the area of the contact patch. It is also calculated that the magnetic field cannot exceed 1800 kA/m with the given parameters of the electric generator. Optimizing inductor shape and winding makes it possible to significantly reduce the requirements for generators while keeping the quality of the output at the same level.