SU1589354A1 - Linear electric motor - Google Patents

Abstract

The invention relates to electric machines and can be used to improve linear electric motors. The aim of the invention is to increase speed. The motor contains measles, magnetic cores and coils. In the extreme grooves of the magnetic core, windings are laid that act on double-layer rings, and annular piezovibrators are installed between the teeth of the magnetic circuit and double-layer rings, which allow to reduce friction and thereby accelerate the processes of disinhibition and movement of the core. If piezovibrators are tuned to the natural frequency of the reversing spring, the disinhibition processes are accelerated. To move the core and fix it in any direction, it suffices to apply power to the coils and annular piezoelectric vibrators, and the tractive force can be adjusted and be greater or less than the force of the reversible spring. 2 hp ff, 2 ill.

Description

The invention relates to electrical engineering and can be used to improve linear electric motors.

The purpose of the invention is to increase the speed.

FIG. 1 shows a linear electric motor, a longitudinal section) in FIG. 2 shows section A-A in FIG. one.

The linear electric motor contains measles 1, covers the stationary inductor, which consists of a magnetic core 2 and three-phase coils 3 that don’t completely fill the grooves 4 of one pole division from each end of the magnetic circuit 2 of the inductor, so that they have circular grooves in which they are placed with a tension of the crust fixation device, made in the form of annular piezoelectric vibrators 5, placed with a tension between the teeth 6 of the magnetic circuit 2, an inductor and a two-layer ring, which consists of a ferromagnetic layer 7 and 8, a conductive layer, wherein the bilayer ring for more povsh1eni performance can be divided by forming the through-grooves 9 on the component parts 10 (FIG. 2). .

Reversible spring 11, located at one end between the stop

SP

CX

12, on the crust of L and the end of the inductor, with the last turn 13 of the reversive spring 11 can interact with the extreme annular piezo-vibrator 14.

Linear motor works as follows.

When the coils 3 and 4 of the inductor winding are disconnected, the measles 1 is inhibited by the frictional forces acting: between the surface of the core 1 and the component parts of 10 two-layer rings. The spring 11 of the reversing device is in a weakly compressed position.

When power is supplied to coils 3 and 4, the inductor windings and annular piezovibrators 5 with a certain frequency, the vibration frequency being chosen equal to or a multiple of the natural oscillation frequency of the reversing spring 11, the annular piezovibrators 5 report oscillations of the component of 10 double-layer rings. Here, due to the normal forces (attraction forces), the component parts of the 10 bilayer rings are attracted to the inductor. Due to this design (the ferromagnetic layer 7 covers the electrically conductive layer 8 and is closer to the teeth 6 of the magnetic conductor 2 of the inductor, as well as the two "L loyal rings are separated by forming; through through slots 9 (Fig. 2) into - constituent parts 10) an air gap is formed between them and the core 1. Anchor 1 begins to move in the direction of the traveling magnetic field of the inductor (the direction of movement is indicated by the arrow), compressing the reversing spring 11 of the reversing device, while the conductive layer 8 of the conjunctival rings performs the functions of sliding bearings.

To fix the core 1 in a certain intermediate position, the power supply of the coils 3 and 4 of the inductor winding and the circular piezovibrator 5 is disconnected, while the air gap between the core 1 and the component parts 10 of the two-layer rings disappears, restoring

five

.

Jq 25

0

0

five

the tension between them is applied (r

To move the core 1 in the direction of the arrow or vice versa and fix it in a different position, it is necessary to energize the cutters 3 and 4 of the inductor windings and annular piezovibrators 5, while the tractive force must be adjusted and be greater or less than the resistance force of the reversing spring 11 of the reversing device.

Dp returning the core 1 to its original position, from any fixed intermediate position, it suffices to apply power to the coils 4 of the inductor windings and ring piezo-vibrators 5. Anchor 1 returns to its original position under the force of the reversing spring 11 of the reversing device.

A linear electric motor, due to the installation of annular piezo-vibrators on the stator, allows to obtain accelerated movement and fixation of the core.

Claims (3)

1. A linear electric motor containing measles with a stationary inductor covering it, a reversible spring placed between the end of the inductor and the stop, and a device for fixing the core consisting of two-layer rings of ferromagnetic and electrically conductive materials, characterized in that, in order to improve speed, the device fixing devices are equipped with a pair of ring-type piezoelectric vibrators installed with a tension between the teeth of the inductor and two-layer rings of the device for fixing the core, while the ferromagnetic layer of the ring Pipeline its conductive layer. 2. Electric motor according to claim 1, about t - characterized by the fact that the two-layer rings are separated by forming through grooves into parts. 3. The electric motor according to claim 1, T is characterized in that the last turn of the reversible spring interacts with an annular piezoelectric transducer mounted on the edge of the inductor. I CH5-n i: 3 A-A . f Editor L.Pcholinsk Compiled by V.Shuvalov Tehred M. Didyk / 0 F // g.2 Proofreader O. Tsiple