Authors: V.V. Miroshnikov, S.S. Eroshin, N.V. Grechishkina

Title of the article: Disc type asynchronous motor without traditional supports

Year: 2024, Issue: 4, Pages: 37-45

Branch of knowledge: 2.4.2. Electrotechnical complexes and systems (engineering)

Index UDK: 621.313.333

DOI: 10.26730/1816-4528-2024-4-37-45

Abstract: Disk asynchronous motors (DAM) are used in electromechanical assemblies in which the transverse size (diameter) is significantly larger than the longitudinal (axial) one. The working body is most often located in close proximity to the electric rotor or even is part of it. It can perform two functions. First of all, it is an electric rotor of an electric machine, and secondly, a working organ that performs useful technological work. As an example, impellers of centrifugal, vortex or disc pumps can be used. As a rule, they have a symmetrical shape, and the applied load is the same on all surfaces. The second example is circular saws that rotate in an axisymmetric magnetic field and are used for processing semiconductor single crystals. The processing is carried out by a diamond cutting wheel with an inner cutting edge, which is an axisymmetric part. The rotor must be made of metal with low internal resistance. The dimensions of the rotor must be consistent with the parameters of the magnetic field in magnitude and direction. They must meet the criterion of steady rotation discussed below. The advantages and disadvantages of motors with an open and closed magnetic system, as well as with two inductors, are shown. The implementation of design solutions with a non-winding massive rotor, which does not have traditional supports, and therefore does not have a shaft, is demonstrated. Using the ELCUT program, the distribution of magnetic flux lines is shown depending on the engine layout. The controlled movement of the rotor in the axial direction in the working gap of the DAM has been experimentally confirmed.

Key words: disk asynchronous motor steady rotation of the rotor criterion of rotation stability magnetic field mechanical supports magnetic system stator magnetic circuit inductor symmetry

Receiving date: 19.07.2024

Approval date: 15.10.2024

Publication date: 31.10.2024

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