RU1791911C - Process of formation of rigid sections of stator winding - Google Patents

Abstract

Using; in the field of electrical engineering in the manufacture of stator windings. SUMMARY OF THE INVENTION: The invention relates to methods for manufacturing rigid sections of a stator winding from a wire of rectangular cross section and can be used in electrical engineering. Section forming consists in winding the wire to the required number of turns per template .1, on the surface of which the laying direction elements are made. wires corresponding to the spatial geometry of the section, for which the end of the feed wire is passed between the clamping guide element and the template, fixed by bending the specified end on the cylindrical voice part of the template, the template together with the wire is moved under the clamping guide element along the direction REFLECTIONS ON THE NZ RULES 6 g1 GIVING AND 8 PLANTS OF THE FLUID FLOW, (Erachiva pattern in the indicated plane around the corresponding points of change in laying direction, due to which they bend od edgewise at these points, and for molding the head portion of sections at the appropriate point on the rotated pattern 180e in the wire feeding direction around the axis of the cylindrical portion poverhnostitolovochnoy template. z.p.f 1-ly, 23 yl.

Description

The invention relates to methods for manufacturing rigid sections of a stator winding from a wire of rectangular cross section and can be used in electrical engineering ..

A method is known for manufacturing the stator coil of electric machines, which consists in obtaining a workpiece by winding a wire onto a template having the shape of an elongated ellipse, followed by stretching the workpiece formed into a boat and crimping the mold section.

There is also known a method of manufacturing rigid coils of electric machines, which consists in winding a wire onto a template, the angles between the sides of which correspond to the angles between the groove and frontal parts of the coil, the subsequent stretching of the grooved parts of the coil with the simultaneous bending of its frontal parts.

However, with these methods, labor productivity is not high, because the manufacturing process is divided into a series of directly unrelated operations, performed sequentially one after another and requiring auxiliary intermediate operations, which also negatively affect the quality of the manufactured coils.

Closest to the proposed method in technical essence is a method of manufacturing hard coils of electrical machines, carried out by means of a device for manufacturing these coils, which consists in winding a wire onto a template on a surface

Vj

Yu Yu

which made the direction elements of laying the wire in the form of a groove in the form of the manufactured coil in which the guide wire is placed, an element in the form of a flexible clamp of turns, made

-. -Azail in r. -., .-:., -. . .. .- - ..: -. . of interconnected rollers or anti-friction1, ha in the walls of the groove are made on the right side :, py: c: p% of which are pressed Tt TKain, winding is performed by nyteNi rotation of the template around the central axis of the spatial shape of the groove, moreover, the indicated axis is perpendicular to the winding surface — a For constant coincidence of the groove with the winding wire, the template is respectively folded to the required angle in one direction or another around an axis perpendicular to the axis of rotation of the template and also passing through the center of the PA-spatial figures

for; th5th: th; G ..:.: ..;:; l -. .. ; The specified method has the following significant disadvantages. The template, when used / is carried out by the method, is structurally complicated, because it is equipped with spiral grooves in the groove walls and complex elements of the template connector to ensure that the wound coil is removed from the template: And since for each type of size of coils it is only necessary for it If the corresponding template, the structural complexity of the template complicates the technology of the method as a whole. In addition, this method inevitably necessitates an additional operation that is not directly related to the manufacture of the coil: input (and output) of guides (bearings) of the clamp element (for example, roller axes) spiral grooves in the groove walls, which is also complicated This way and reduces performance. But the most significant drawback of this method is that the template is rotated around its central axis, and the template is rotated around an axis perpendicular to the first and also passing through the center of the template, which necessitates the forced movement of the clip | the plane of rotation of the template on; a value of not less than half the length of the formed coil, and in the plane of rotation of the template. by the amount of movement of the capillary part of the template in the specified plane. These circumstances complicate the implementation of the method due to the complexity of the means for its implementation and affect the quality of the manufactured coil by reducing the accuracy of its spatial geometry for the indicated reasons.

The aim of the invention is to improve the quality of the manufacture of the section by improving the accuracy and simplification of i-technology; ;;.,

11osta% l ny purpose; ; j | 6bTi / iraetcW. those htb; referring to the hard section method. it with; shab / ioWa; the guide wire along the sections of the template, (io-corresponding slotted groove or bypass; this is the first section, produced by moving the template together with the supplied wire, the initial end of which corresponds to the row from the terminal ends of the sections, is fixed on the template; along i directions to the napra the fourth and in the plane of the supplied Wire; with the appropriate direction of laying by turning the template in the specified plane relative to the fixed 6th right / 1 angle, its element wire, spring-loaded towards the template, and forming the head of the section section is carried out by rotating the template 180 ° around the central axis of the circumference of the cylindrical surface of the template on its head parts, and fixing on the template the initial end of the passageway is carried out, for example, by bending it along the cylindrical surface nry of the pattern. ;;:; :; . ;; :,: -; .. V-: ..:

Figures 1-22 schematically show the moments of displacements, the timing of rotation and rotation of the template relative to the stationary guide element when laying the grooved frontal parts of the section and forming its heads; Fig. 23 is a schematic diagram of the fastening on the template of the initial end of the wire.

The method is carried out as follows. .-s :. ,: :::;: / g -. . -. - Template 1 in the initial position is installed under the guide wire with element 2, the end of the feed wire 3 is passed between the guide element and the template, the specified end of the wire is bent, In accordance with the size of the initial output end of the section, the head part 4 of the template, secured it in such a way on the template, and place said gallbeam portion exactly in front of the guide element. Then, the template is moved together with the wire along the laying direction in the feed direction and in the wire feed plane, turning the template in the specified plane at the corresponding points of the laying direction, as a result of which the wire is bent at the indicated points and the direction of movement of the template is coordinated with the direction of the elements on - the stacking board made on the template, thereby precisely laying the wire on the template. Moving the template to the beginning of the cylindrical surface of its second head part 5, rotate the template by. 180 ° in the direction of the wire feed around the central axis of the indicated surface, laying the wire on this surface, whereby the section head is formed. After that, the template is again moved in the feed direction similar to its previous movement, laying the wire along the laying direction elements on the back of the template and the template is again rotated 180 °, at the end of the indicated movement the second section head is shaped and the formation of the first turn of the section is completed. The indicated operations of moving, rotating and rotating the template are successively repeated until the required number of turns of the section is obtained. Upon completion of the formation of the last turn of the section, the template is moved in the previous direction by the amount necessary to obtain the second output end of the section, the formed section is cut from the feed wire and removed from the template. To form the next section, the template is returned to its original position and the entire sequence of the indicated operations is repeated.

The proposed method allows to improve the quality of the section by increasing the accuracy of molding and eliminating auxiliary operations and to increase the manufacturability of molding due to simplification.

The economic effect is achieved by improving the quality of the section, because more

a high-quality section is more reliable and durable, due to the simplification of molding technology, which allows to improve and thereby reduce the cost of the design of the means of implementing the method, especially the template, and by eliminating auxiliary operations that are not directly the operations of forming sections.

Claims (2)

1. A method of forming rigid sections of the stator winding, according to which the wire is wound on a template corresponding to the spatial geometry of the section on the surface of which the directional elements of the laying of wires are made, the stacked wire is rolled in at the same time, the formed section is cut off and removed from the template, distinguishing that, in order to improve the quality of the section by improving the molding accuracy, simplifying the molding technology, laying the wire in the sections of the template, the corresponding groove and frontal parts The section is produced by moving the template together with the feed wire, the initial end of which is fixed on the template along the laying direction in the feed direction and in the plane of the supplied wire with the corresponding laying direction by turning the template in the specified plane relative to the stationary guide wire element, spring-loaded towards the template, and section heads are formed by rotating the template 180 ° around the central axis of the circumference of the cylindrical surface of the template on its head internal parts. 2. The method according to claim 1, characterized in that the initial end of the wire is secured to the template by bending said end corresponding to one of the output ends of the section onto the cylindrical surface of the head of the template. FIG. 5 FIG. 23 J