RU1798865C - Induction reducer - Google Patents

Abstract

Usage: induction reductosines. SUMMARY OF THE INVENTION: An induction reductosin comprises a gear stator with one excitation winding and two output sinus-corns windings and a windingless rotor. The tooth zone contains 2P repeating parts, and the number of teeth of the rotor is equal to the difference in the number of pairs of poles of the field windings and any of the output windings. 1 ill.

Description

The invention relates to the field of electrical engineering, namely to the construction of gearboxes (RIs) - non-contact rotating transformers with a gearless winding rotor and a stator, on which excitation windings and outputs with different numbers of pole pairs are located.

The aim of the invention is to increase the accuracy and expand the possibility of using IR with concentrated windings. This is achieved in that the number of repeating parts is equal to 2, and the number of teeth of the rotor is equal to the difference between the number of pairs of poles of the field winding and any of the output windings.

An example of a specific implementation can serve as IR (in the drawing), each repeating part of which consists of four teeth 2 of the stator and one tooth 1 of the rotor. An excitation winding 4 (pole-tooth) with the number of pole pairs pi 2 and two 5 and 6 output sine-cosine windings (two pole-waves) with the number of pole pairs rg - 1 is laid on the stator. For a fixed point in time when the current in the winding excitation is equal to the maximum, the magnetizing force F of the excitation winding corresponds to the expression F - Fmslnp ix, and the magnetic conductivity G of the air gap corresponds to the expression G Go + Gi .sln (x - a). Accepted notation: x is the angular coordinate around the circumference of the bore; a is the angle of rotation of the rotor; Fm, Go, Gi are constant values.

When only the first harmonics of the magnetizing force and conductivity are taken into account, the induction Bx in the air gap will correspond to the expression

I FG Fm {Go slnpix + 0.5Gr cos (pi - 1) x + a - 0.5Gi cosftpi + 1) x - Since the output stator winding has a number of io pairs of poles P2 1, it only accepts the component field :. Bx 0.5F, nGicOs (pi - 1) x + a

- 0.5FmGicos (x + d) In terms of the full circle (taking into account all N 2 repeating parts)

ate

WITH

vj yu seo

00 Os

ate

on a two-phase output winding, voltages will be induced for one phase Ui Um slnN a, and for the second Ua UmCosN a,

If we continue to study the nature of induction of the EMF in the output winding from the higher harmonics of the magnetizing force and conductivity of air azor, then in the EMF of the output windings PO. I8 are higher spatial: components of Uak Umsln k N a, where k are odd numbers,

An increase in accuracy is achieved due to such a ratio of the geometries of the tooth zone and the bevel of the rotor grooves at which the amplitudes of the third and fifth, as well as the seventh and ninth (pairwise), spatial harmonics of the EMF output windings are equal in magnitude, and their phases are opposite, since Since the number of parameters of the tooth zone geometry includes many factors, their ratios are determined in each individual case. Experimental

Forms and Forms

An induction reductosin containing a gear stator with a multi-pole field winding and output sine-cosine quadrature ohms, coils made with repeating parts, and so on, in order to increase the accuracy and expand the possibilities of use, the number of repeating parts is equal to 2,

where n is any integer, and the number of teeth of the rotor is equal to the difference between the number of pairs of poles of the field windings and any of the output windings.