SU1293379A1 - Controllable magnetic support - Google Patents

Abstract

The invention relates to mechanical engineering and can be used for non-contact suspension of rotating bodies. Olor allows to increase the use of permanent magnets and thereby increase the specific energy characteristics. The movable part of the controlled magnetic support contains a rotating body 1 on which is mounted a disk ferromagnetic measles, made of two parts 2 and 3. The fixed part of the support consists of two annular permanent magnets 4 and 5 magnetized radially and located at different ends of the disk core. Ring permanent magnets 4 and 5 are equipped with ferromagnetic pole tips 6, 7 and 8, 9, respectively, made in the form of coaxially arranged cylindrical magnetic conductors. Pole tips 6 and 7 are fixed with one end to the non-magnetic

Description

10, while others face part 2 of the ferromagnetic disk core, and pole tips 8 and 9 are fixed with one end on a nonmagnetic disk 11, while others face part 3 of the disk core. The magnetic conductors 12 and 1A of the coils 13 and 15 O & 4T of the control are arranged with pole pieces 6, 7 and 8, 9, respectively, and are rigidly connected to non-magnetic disks 10 and 11, respectively. With equal working gaps between parts 2, 3 of the disc core and pole tips 6, 7

one

The invention relates to mechanical engineering and can be used for the suspension of rotating bodies.

The purpose of the invention is to increase the specific energy characteristics.

The drawing shows a controllable magnetic support, a longitudinal section.

The movable part of the controlled magnetic support contains a rotating body 1. On which the ferromagnetic disk measles is fixed, made of two parts 2 and 3. The fixed part of the support consists of two annular permanent magnets 4 and 5 magnetized radially and located from different ends of the disk cr. Ring permanent magnets 4 and 5 are equipped with ferromagnetic pole pieces 6, 7 and 8, 9, respectively, made in the form of coaxially arranged cylindrical magnetic cores. Pole tips 6 and 7 are fixed with one end on a non-magnetic disk 10, others face part 2 of a ferromagnetic disk core, and pole tips 8 and 9 with one end face are fixed on a nonmagnetic disk 11, and others face part 3 of a ferromagnetic disk core. The magnet conductor 12 of the coil 13 of the control winding is made in the form of a ring with a W-shaped cross section along the axis of rotation whose protrusions are located coaxially with pole pieces 6 and 7 and

and 8, 9 permanent magnets 4 and 5, respectively, the attractive force acting on; Parts 2 and 3 of the ferromagnetic disk core are the same. In the case of displacement of the rotating body 1 in the axial direction, the control system generates currents of such magnitude and direction so that in the increased working gap the magnitude of the magnetic flux increases, and in a smaller working gap it decreases. As a result of this, the lying body 1 returns to its original position. 1 il.

rigidly connected to a non-magnetic disk., com 10. The magnetic circuit 14 of the coil 15 of the control winding is also made in the form of a ring with a W-shaped section

along the axis of rotation, the protrusions of which are located coaxially with the pole pieces 8 and 9 and rigidly connected to the non-magnetic disk 11.

The controllable magnetic support functions as follows.

Permanent magnet 4 creates a magnetic flux, part of which passes through the poles of tips 6 and 7 through the air gap and part 2 of the disk core. Another part of the magnetic flux created by the permanent magnet 4 passes through the non-magnetic disk 10 and the magnetic circuit 12 of the control winding coil 13. - A permanent magnet 5 creates a magnetic flux, which is similarly distributed in a magnetic system consisting of pole pieces 8 and 9, part 3 of the disc core and magnet 14 of the control winding coil 15.

 With equal working gaps between parts 2 and 3 of the disk core and pole tips 6, 7 and 8, 9 of the permanent magnets 4 and 5, respectively, the attractive forces acting on Parts 2 and 3 of the ferromagnetic disk core are the same. In the case of displacement of the rotating body 1 in the axial direction, for example in the direction of the permanent magnet 4, the system

control (not shown) creates currents of such magnitude and direction so that in the increased air gap from the magnet 5 side the magnitude of the magnetic flux increases, and in the gap from the magnet 4 side decreases, which leads to an increase in the force of attraction acting on the disk and, consequently, on the rotating body 1 in the direction opposite to the direction of its displacement and weakening of the attractive force from the side of the magnet 4. As a result of this, the rotating body 1 returns to its former position.

Formula Invention

A controlled magnetic support of rotating bodies, containing disk ferromagnetic measles, mechanically connected with a rotating body, two "movable circular permanent magnets with ferromagnetic pole

Editor T. Mitejko Order 362/36

Compiled by N.Trifonov

Tehred A. KravchukCorrector N.Korol

Circulation 760 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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five

The tips are located at different ends of the disk core, a magnetic conductor with two coils of control winding connected to an automatic support control system, characterized in that, in order to improve specific energy characteristics, the annular permanent magnets are magnetized radially, and the pole tips each magnet is made in the form of two coaxially arranged cylindrical magnetic cores, with one end facing one end to the disk ferromagnetic core, and the other are fixed on a non-magnetic dis- e ,, wherein the control windings magnetically toprovod formed of the divided two parts of the armature disk in the form of rings with W-shaped cross section of the pivot axis, which protrusions are arranged coaxially with the cylindrical magnetic cores and the permanent magnets are fixed to the nonmagnetic disk.

Claims (1)

Claim A controlled magnetic support of rotating bodies, containing a disk ferromagnetic armature mechanically coupled to the rotating body, two fixed annular permanent magnets with ferromagnetic pole pieces located at different ends of the disk armature, a magnetic circuit with two control winding coils connected to the automatic support control system 5, characterized the fact that, in order to increase specific energy characteristics, ring permanent magnets are magnetized radially 10 .. but, and the pole pieces of each magnet are made in the form of two coaxially arranged cylindrical magnetic cores that face one end of the ferromagnetic disk armature 15 and the other are mounted on a non-magnetic disk, the control winding magnetic circuit being made ^; of two parts separated by a disk anchor in the form of rings with a W-shaped 20 section along the axis of rotation, the protrusions of which are aligned with the cylindrical magnetic circuits of permanent magnets and are mounted on a non-magnetic disk.