SU1050051A1 - Device for jamming windings in slots of magnetic core of electric machine - Google Patents

Abstract

DEVICE FOR jamming windings in slots magnitoprovodom electric machine comprising a mechanism for securing and indexing rotation of the magnetic mechanism for biasing the coil comprising winding sealant plunger wedges and the actuator, characterized in that, in order to increase productivity, the mechanism for urging the winding is provided with a sleeve, the outer surface of which corresponds to the surface of the bore of the magnetic conductor, which has, at a length equal to the width of the package of the magnetic conductor, slots, the number of which is equal to the number of grooves magnet provodz and the width of each slot is equal to the width of the groove .magnitoprovoda passage and through slots for the passage of sealant winding.

Description

The invention relates to technological equipment for the manufacture of electrical equipment, for example, stators of alternator alternating current alternators, and can be used in the electrical industry.

A device for jamming the windings in the stator slots is known, which contains a mandrel, which is filled with conductors for transforming an UUHHH and concentration of an electromagnet.

KYH CJi.l.

The mandrel is inserted into the bore of the staor and is connected to the current source, with the throttle valve part being pressed to the bottom of the groove by pulsed discharge of the capacitor 1.

A disadvantage of this device is that for a rigid coil winding, which is usually repressed into the open grooves of the stator, the pulse discharge is not enough to press the windings of the winding and thereby free up space for the wedge to rotate.

Closest to the invention is a device for jamming windings in the grooves of an electrical magnetic circuit, comprising a mechanism for securing and stepping rotation of the magnetic circuit, a mechanism for pressing the winding, including a winding compactor, a wedge pusher, 1FIGE 2.

However, the known installation does not provide the required performance when squeezing the hard multilayer catupice windings laid in the open grooves of the magnetic core, because when the tra compactor is pressed, the frontal parts of the winding groove part of it spring up and swell, which makes it difficult to install the wedge.

In addition, under the action of the seal on the winding, the stripping of the wires of the winding is frequent on the sharp poles of the magnetic circuit.

The aim of the invention is to increase productivity.

This goal is achieved by the fact that in the device for jamming the windings in the grooves of the magnetic conductor of the electric mashina, there is a mechanism for fixing the stepping rotation of the magnetic conductor, a mechanism for pressing the windings, including a winding compactor, a pusher K. and a drive, a podzhi mechanism. ma, the winding is provided with a sleeve, the outer surface of which corresponds to the surface of the bore of the magnetic conductor, having a length equal to the width of the magnetic flux packet, the slots, the number of which is equal to the number of the magnetic grooves, and the width of each a rapus slot with a passage width of the groove of the magnetic conductor, and through slots for the passage of a winding compactor.

FIG. 1 shows the proposed installation, the general view; in fig. 2 - sleeve; installed in the stator, pro.aolpy section;

in fig. 3 is a section A-A in FIG. 2; in fig. 4 is a section BB in FIG. 2

The device for jamming the windings of the magnetic circuit of the electrical maschine (Fig. 1) contains a roll holder 1, an accessory device 2, a mechanism 3 intermittent 4,. a cutting device 5, a wedge accumulator 6, a mechanism 7 with a mandrel 8 for securing and scraper rotation of the stator 9, a mechanism for clamping the winding with a seal 10 of the winding 11, a pusher 12 of the wedges with a safety device 13, a counting mechanism 14 and an electric pneumatic and mechanical actuator 15, 16 and 17, as well as a thin-walled sleeve 18 (Fig. 1 and 2) with resistant elements 19 and longitudinal slots 20 or 20 (section I in Fig. 2).

The length of the splines is not less than the length of the package of the magnetic circuit 9, their number is equal to the number of slots, and the width is equal to the passage width of the magnetic core groove. Slots smoothly transitions in m (1 part 21 (plot in Fig. 2), the diameter of which is equal to the diameter of the stator 9 (dcr), with the lead-in cone 22.

 Through sleeves 23 are made in the sleeve for the passage of the winding compactor 10. Position 24 marked the wedge.

A device for seizing the windings in the grooves of the magnetic circuit of electric machines works as follows.

A stator 9 with a winding 1 is mounted on the sleeve 18 (FIG. 2) to stop elements 19, while the following operations are carried out: fixing the spring-loaded turns of the coil winding 11 at the poles of the stator 9 in the section t of the sleeve 18 along the inner bore dcr, pressing the coils of the winding 11 at the poles of the stator at the site of the sleeve 18 at the expense of the longitudinal slits 20, smoothly (at site I,). stator slots 9.

In order to freely perform these operations (fixing and pressing the spring-loaded coils) cylindrical (section fg) and slit (section t), the parts of the sleeve 18 must be somewhat larger than the dimensions of the winding 11 in the frontal parts (marking)

Depending on the arrangement, the sleeve 18 may be permanently fixed to the unit (Fig. 1) or is a removable technological element (Fig. 2). After the turns of the winding 11 are pressed by the elements of the sleeve, the mounting and fixing of the stator 9 on the mandrel 8 of the stator 9 in the device 7 takes place.

The mechanism is engaged in producing and pushing the wedges 24 into the stator slots.

Tape 4 (fiber or preshpan) is pulled from roll holder 1 and the mechanism m 3 of intermittent feeding is pushed into one of the slots of accumulator 6, after which wedge 24 is cut by device 5 (Fig. 1) with formation of lead-in chamfers. At the same time, the wedge 24 is pushed into the next stator 9 notch from the other groove of the accumulator 6 by the pusher 12 (Fig. 1) and the wedge 24 is pressed from the drive 16 turns 11 along the frontal parts of the winding from both sides before pushing the wedge 24. Thereafter, the stator and accumulator 6 are rotated one step, and the cycle is repeated until all the stator or rotor slots of the electric machine have been wedged. In the event that an overload occurs when the wedge 24 enters the groove of the magnetic conductor 9, the safety device 13 (FIG. 1) will operate and shut down the installation. Then, the finished product is removed from the mandrel 8 and the sleeve 18. The use of the proposed device improves the performance when working with rigid windings due to the fact that the use of the sleeve eliminates the springing of the winding from the groove, cutting, and thus the time to install the wedge. In addition, the stripping of wires on the sharp edges of the magnetic cores is also excluded.

Phage. 2

20 20 78 ag.

Claims (1)

A device for jamming windings in the grooves of a magnet wire of an electric machine, comprising a mechanism for securing and stepping the magnetic circuit, a mechanism for winding a winding, including a winding seal, a wedge pusher , the outer surface of which corresponds to the surface of the bore of the magnetic circuit, having a length equal to the width of the package of the magnetic circuit, slots, the number of which is equal to the number of grooves of the magnetic circuit yes, and the width of each slot is equal to the passage width of the groove of the magnetic pipe, and through holes for the passage of the winding seal. ® SU „„ 1050051 FIG. 1