SU433603A1 - - Google Patents

Description

(54 LINEAR MOTOR OF A VARIABLE DOC .;

A linear electric pO AC motor is known, comprising a core magnetic core with a concentrated excitation winding and a stator winding laid in a laminated core, and a comb-free non-winding system of poles united by backs.

In the described engine, to improve reliability, the magnetic core is provided on both sides with magnetic packets, in which grooves a stator winding is extended, the length of the packs, and the indicated backs of the comb system are made with alternating teeth and valleys in the pole division and form single-pole systems between these systems several rows of magnetically conductive elements forming a opposite-pole system of poles can be placed in a staggered order. In addition, for controlling the speed and traction of the chryli, the field winding is connected to the AC network, and the outputs of series-connected stator winding conductors to the adjustment resistors.

FIG. I depicts the proposed motor, longitudinal section (three-phase embodiment); in fig. 2 - fixed magnetic circuit of the comb system, top view; in fig. 3 is a diagram of the connection of adjustment resistors in FIG. 4 shows the layout of the stator coil; in fig. 5 shows an engine with several rows of magnetically conducting elements forming an opposite-pole system, as shown in FIG. b - the same, top view (without a buzz system); in fig. 7 - an engine with several excitation magnetic conductors, each of which binds adjacent packets between them, a general view; in fig. 8 — magnetically conducting elements (three versions). | The described motor (see FIG. 1, 2) contains an excitation winding I with laminated magnetic core 2, left 3, middle 4 and right 5 stator packages and a comb-free non-winding system of poles united by backs consisting of a left €, average 7.8 and right 9 poles. Winding 10 covers all stator packs 3, 4 and 5. The magnetic flux path for one, th, engine phase is as follows. The magnetic flux created by the AC excitation winding I passes through the magnetic conductor 2 into the stator package 3, through the air gap into the pole of the comb system, then into the pole 7 connected to it and again through the air gap into the middle package 4 of the stator. Similarly, the magnetic flux passes along the left side of the magnetic system (packet 5, poles 9.8, packet 4). In other phases, the magnetic flux goes the same way. The interaction of the magnetic flux with the current arising in the stator windings 10 creates tractive effort. When the magnetic core and the stator windings are located on the cart, the latter is set in motion. FIG. Figure 4 shows the arrangement of the stator winding 10. The phases of this winding are offset relative to each other in the general case by an angle of 360Ai e. Hail, where KV1 is the number of phases, moreover, over 360 el. the distance is taken along the path between the same poles of the comb of the system (angular displacements in electrical degrees are shown on the left in Fig. 2 and on the right in Fig. 4). A circuit for inserting additional resistors into the stator winding 10 for adjusting the speed and gravity is shown in FIG. W .. where figures correspond to IJ-IT w% 2j-2j, etc. marked the beginning and the ends of the coils of different phases, connected together sequentially, with the figure with the index corresponding to the phase number, and the figure with the index and dash - the end of the coil. The proposed motor also contains (see Fig. 5.6) rmo (megnitoprovod) II, excitation winding 12, laminated packets 13 core, 14 core wires 16, magnetic conducting elements of the path 15, rails 16. When power is supplied to the excitation winding 12 a magnetic flux arises in the magnetic conductor ll, which interacts with the magnetic conductor. elements of the paths. During the passage of current in the wires of the cores (the windings, the magnetically conducting elements of the path are poles of electromagnets due to the flow of the same direction through them. The anchor wires are laid into the grooves of the lamellar packages in such a way that the wires with the same direction of the currents interact with the poles of the same name (see FIG. 6). The magnetic flux of the magnetic conductor I passes into the back, for example, of the leftmost package 3 and through the package teeth and an air gap interacting with the wire currents passing across the first; package and located above the poles of the first row, falls into the poles of the same name, for example, the extreme left (-Xth row) of the magnetically conducting packages 5. Then across the path, along the axis of the leftmost elements, the flow passes into the poles located under the second package core (in the 2nd row), and through the air gap into the next package core, then along the back of this packet again through the teeth, through the air gap again into the poles of the second row of the magnetic conductive elements of the path ... package core and magnetic conductor element m path, the magnetic flux passes from the leftmost poles to the rightmost poles (rightmost row of poles of the same name) and through the air gap enters the rightmost package core and closes in the magnetic circuit I. And, if the number of rows of magnetically conductive elements laid along the width of the path is equal to П, then the number of lamellar core packages, respectively, is equal to AND + I, the Sections of the magnetically conducting elements (see Fig.7, 8a, b) it is advisable to carry over the lines with a maximum in the middle part of the elements and a minimum along their edges P r d y s ibrebhevi i. Linear electric motor of alternating current, containing rod magnet duct with concentrated excitation winding and stator winding, laid

iB laminated core, and a fused, non-winding system of poles united by backs, characterized in that, in order to improve reliability, the 5 magnetic circuit is provided on both sides with magnetic packets, in the slots of which the stator winding is extended by the length of the packets, and the back of the comb system performed with alternating pole divisions and teeth in pole division and the image of this pole-like system

2, the electric motor according to claim. I, 15 is different in that

between the same-pole systems, there are several sets of magnetically conductive elements in a staggered order, which form an opposite-pole system of poles.

3. Electric motor according to claim I, characterized in that, in order to regulate the speed and pulling force, the field winding is connected to the AC network, and the outputs of series-connected stator winding conductors - to the adjustment resistors.

The priority according to i) is calculated in C 21 L.72, f 453603 (4 rU) - / L)). V 2 2 3 3 2, -2 2-2-2j2r, p-3-4j% jj, Jb - 4-5;% 0,

/

 "2s

e

/

FIG. 6

sixteen

but