SU964890A1 - Linear dc electric motor - Google Patents

Description

(54) LINEAR ELECTRIC DC MOTOR

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The invention relates to electrical engineering and can be used in linear electric motors of industrial and transport mechanisms, in robotics, and in automated warehousing techniques, where implementation of a circumferential perimeter bypass is required.

A known electromagnetic device comprising a stationary magnetic conductor, made in the form of a frame, on the inner surface of which along the perimeter there are poles with an excitation winding, and a movable magnetic conductor, made in the form of a rectangular parallelepiped, on the side faces of which are poles f1 J.

A disadvantage of this device is its low functionality, since the perimeter that can bypass the movable element is very limited.

Izv; natural also linear electric; direct current motor containing fixed magnetic cores with protrusions arranged in two rows and in a staggered order, and a movable magnetic circuit | carrying on itself the excitation windings and the main windings laid in the grooves on its side surface 2J.

The disadvantage of this engine is its low functionality, which prevents the moving element from moving along a curved path.

The aim of the invention is to expand the functionality.

: The goal is achieved by the fact that the fixed magnetic core of a linear electric motor of a constant

Claims (2)

The 20 current is in the form of a rectangular frame, on the inner surface of which the protrusions are arranged, which are arranged in two Reeds in a checkerboard pattern. and the movable magnetic core is a crisp-shaped core, the rods of which are covered by the excitation windings, and on the front surfaces of which there are grooves for laying the core winding. In addition, the linear electric motor of direct current can be equipped with an additional non-movable magnetic circuit, made in the form of a rectangular frame, having protrusions on the external surface, similar to the projections of the main magnetic circuit, and located inside the frame of the main magnetic circuit. FIG. 1 shows a movable mz nitrovod; in fig. 2 - the angular part of the fixed magnetic circuit; FIG. 3 is a schematic representation of an engine with internal and external fixed magnetic cores. The movable magnetic core 1 is made in the form of a cruciform core, the rods of which are covered by excitation winding 2, on the end surfaces of which grooves 3 are made, in which the root winding is laid A. Rod end width is equal to or a multiple of the double pole Dividing motor Fixed magnetic motor The direct current is made in the form of a straight-line frame 5, on the inner surface of which there are protrusions 6 arranged in two rows in a staggered order, thereby the distance between the axes of the stand dressings equal to C, and the length along the course of the movable portion is oi-jAt, where - the pole pitch of the engine; oL coefficient of the calculated pole arc. Vertically, the protrusions are separated by a nonmagnetic gap, which provides the necessary formation of the main magnetic flux and a reduction in the scattering fluxes. The engine can be equipped with additional fixed magnetic core 7, made in the form of a straight coal frame, having protrusions on the external surface similar to the projections 6 of the main magnetic core 5 and located inside the frame of the main magnetic circuit. The engine works as follows. When power is applied to the excitation winding and the main winding of one of the rods of the movable magnetic circuit, the movable magnetic conductor moves along the corresponding side of the frame of the fixed magnetic conductor. To ensure movement along the other side of the frame, power is supplied to the field winding and the core winding of the adjacent core of the movable magnetic circuit. To increase the pulling force twice, the engine is supplied with an additional Fixed magnetic circuit 7. Power, in this case, is simultaneously applied to the main winding and excitation windings of two opposite rods of the movable magnetic core. ; The reversal and adjustment of the speed of the considered motor is carried out using methods common to rotating and linear DC motors. Claim 1. A linear DC electric motor comprising stationary magnetic cores with protrusions arranged in two rows in a staggered order, and a movable magnetic core carrying on itself the excitation windings and the main windings laid in the slots on its side surface, distinguished from in order to extend the functionality, the fixed magnetic circuit is made. In the form of a rectangular frame, on the inner surface of which the said protrusions are placed, and the movable magnetic core is made in Idea of a cruciform core, the rods of which are covered by the mentioned excitation windings, on the end surfaces of which there are grooves for laying the said core winding 2. The motor according to claim 1, characterized in that it is equipped with an additional fixed magnetic conductor in order to increase traction force , filled in the form of a rectangular frame, having protrusions on the outer surface, similar to the projections of the main magnetic circuit. and located inside the frame of the core of the iro magnetic circuit. Sources of information taken into account in the examination of $ 1.Patent of Switzerland ff 585585, cl. B 06 B 1/00, 1977. 2. USSR author's certificate according to the application ff 27198W2-07, cl. H 02 K 1/035 1978.