SU959221A1 - Apparatus for dropping shorted-out coils into slots of magnetic core of electric machines - Google Patents

Description

The invention relates to process equipment for laying short-circuited turns in the slots of the magnetic circuit of electrical machines and can be used in the electrical industry.

There is a known method for laying short-circuited turns into the slots of the magnetic circuit of electrical machines, which describes a device for its implementation, comprising a housing in which a mechanism for inserting the sides of the turns into the splines of the teeth and fixing them in the slots, a mechanism for orienting the sides of the turns in the slot to the normal the side surfaces of the head of the teeth and their reduction, located inside the mechanism for inserting the sides of the windings into the slots of the teeth and fixing them in the slots, a device for pressing the magnetic guide to the mechanism for orientation the sides of the coils in the groove and crimp them, located above this mechanism and coaxially with it, the centers for installing the magnetic core, while one of the centers is located inside the mechanism for orienting the sides of the coils in the groove and crimping them ij

A disadvantage of the known device is low productivity.

due to the lack of interconnection between the specified mechanisms of the device.

The purpose of the invention is to increase productivity.

The goal is achieved by the fact that the mechanism for orienting the sides of the turns in the groove and compressing them is made in the form of a cup equipped with a drive

10 of its rotation and with holes in the bottom, a disk located inside the glass and equipped with a reciprocating axial movement, and | rods whose cross section corresponds to the shape of the magnetic core groove, along each of the rods in the section corresponding to the upper part of the groove on the side, the bevel, a / along the axis of symmetry, are made of successively arranged longitudinal grooves, a protrusion, two communicating spiral, grooves with counter-cutting, having extended edges along the edges, with the rods in one end This is fixed to the disk, while their other ends are located in the holes in the bottom of the glass.

The mechanism for inserting the sides of the coils into the splines of the teeth and fixing them in the slots is made in the form of a plate with directions of radially arranged elements and punches with the drive of their reciprocating movement. neither in the plane perpendicular to the axis of the glass located in the guide elements, while in the working area of each punch there are parallel protrusions and a fork for accommodating the magnetic core, and on the protruding parts of the fork there are bevels arranged at an angle to each other. press the magnet to the mechanism for orienting the sides of the coils in the groove and crimping them in the form of a glass with holes in the bottom for passing the rods of the mechanism for orienting the sides of the coils in the groove and crimping them, equipped with Axial reciprocating movement by means of water and installed in guide elements. Figure 1 shows 1No device for laying short-circuited turns in the grooves of the magnetic circuit of electrical machines, a general view; on - mechanisms for orientation of the sides of the coils in a groove and compressing them and a mechanism for inserting the sides of the coils into the slots of the teeth and fixing them in the slots; on FIG. 3 - the same, in the plan; Fig. 4 is a section A-A; Fig. 3; FIG. 5 shows a section of BB in Fig. 1; FIG. 6, knot I in FIG. 1; FIG. 7 shows the core of the mechanism for orienting the sides of the turns in the groove and compressing them / in FIG. 8 is a section at the beginning of section D in FIG. 7 / in FIG. 9 a section at the end of section E in FIG. 7. A device for laying short-length whip turns into the slots of the magnetic circuit of an electric machine comprises a housing including plates 1-3 (fig.1), connected in four columns 4. On the plate 1, devices 5 are installed to press the magnetic conductor to the mechanism for orienting the sides of the spiral groove and compress them. The fixture 00 holds the flange b, on which the axial reciprocating drive is mounted, made in the form of a pneumatic cylinder 7 with a piston 8. At the lower end of the cut 8 a glass 9 is mounted on the base plate, the bottom of which is filled with holes, the number and shape KOTO {% "t corresponds to the groove of the mantle (the piping. Inevmocylinder 7 for, kflt krnika 10, on which the bracket 11 is fixed with the direction of the straight elements 121 which the cup 9 interacts with, for which its grooved surface is made grooves. On the lid 10 also fixed cross Teine 13 with micro-switches 14 mounted on it, with which copier 15 interacts, fixed on the outer surface of glass 9. Inside the piston 8 there is a pneumatic cylinder 16 in which is positioned 17. At the lower end of rod 18 there is a center 19 on bearings mounted on the bearings ( bearings are not shown.) The pneumatic cylinder 16 is bottom-closed by a cover 20. The rod 18 in the upper part ends with a rod 21 supporting the cam 22, with which two microswitches (not shown) interact, fixed on the cover 23 and fixing the edge The upper and lower positions of the center 19. The cylinder 16 is closed from the top by a cover 24. On the plate 2, a mechanism 25 is mounted to orient the sides in the groove along the normal to the inner side surfaces of the head of the teeth and compress them and the mechanism 26 to enter the sides of the turns into the slots of the teeth and fixing them in the slots. The mechanism 25 is located inside the mechanism 26. The mechanism 25 is made in the form of a cup 27 with a gear on the outer surface with holes in the bottom, which is mounted in bearings 28 in the bearing 28 (FIG. 2), fixed to plate 2 with Bolts 29. Holder 28 below It is closed by a cover 30, and from above -. The plate 31. In the bottom of the glass 27 there are made through holes through which the rods 32 pass, the cross section of which corresponds to the magnetic core groove, while along each of the rods in the section corresponding to the upper part of the groove, a bevel is made on the side of the slot and consecutively located longitudinal groove, protrusion, two joint spiral grooves with integrated cutting, having extended sections along the edges (Figures 7-9). Inside the mechanism 25 in the bottom of the glass 27 there is a center 33 arranged with it for mounting the magnetic core. The center 33 is mounted on an elastic cushion 34 and centered on the center 19. The rods.32 are fixed with their lower ends in the grooves of the plate 35 located inside the cup 27, with a single nut 36-. The disk 35 in the lower part is designed as a fork, which joins with the coupling 37, a half ring 38 is fixed on the bottom end of the glass 27. On the plate 2, the body of the stop 39 is fixed. The gear of the glass 27 is in engagement with the rail 40, which is mounted on bearings 41, fixed also on the plate 2 (figure 5). A mechanism 26 for inserting the sides of the coils into the splines of the teeth and fixing them in the splines comprises a ring 42 (FIG. 2) fixed on the Hose 28 by bolts 43. Inside the ring 42 a pressure ring 44 is installed with an inner conical surface. Three vertical holes are made in the pressure ring 44, through which the glands 45 pass. On the plate 31, punches 46 are installed, interacting with short-circuited coils 47 laying in the slots of the stator 48. The punches 46 are located radially in a plane perpendicular to the axis of the cup 27, wherein in the working area of each punch there are parallel protrusions and a fork for placement, a magnetic conductor, and on the protruding parts of the fork there are bevels arranged at an angle to each other (Figures 2 and 3). On the inner conical surface of the ring 44, lining 49 (fig. 3) is fixed, having shoulders along the edges that enter inclined grooves made on the side surfaces of the punch 46, parallel to the cone forming the pressure ring 44. On one of the side surfaces The punches 46 are made by a dovetail (Fig. 4), with which they interact with guides 50 located radially on the plate 3 between the punches 46. Rake 40 (fig. associated with rod 51 of the actuator 52 turning the cup 27 with a finger 53 (Fig .5). In the case of the stop 39, two re There are screw holes, into which the locking screws 54 are screwed. A dovetail is made on the outer surface of the semi-ring 38, along which it mates with the cam 55. In addition, on the slab 2 there is a fixed 56 with mounted two microswitches 57 on the bottom. On the plate 3 there are mounted actuators of reciprocating axial movement of the disk 35 and reciprocating movement of the punches 46 in a plane perpendicular to the axis of the cup 27. The drive of the reciprocating axial movement of the disk represents the same time p consisting of a base 58. on which a cylinder 59 is fixed. A piston 60 is placed inside the cylinder 59, the rod 61 of which passes through the cover 62. The yoke 63 and the coupling 37 are attached to the rod 61 to connect the rod 61 with the disk 35 (FIG. A guide column 64 passes through the opening of the crosshead 63, which at one end is fixed to the base 58 and the other to the plate 2. Adjustable rigid stops 65 are installed on the threaded parts of the guide column 64. The reciprocating drive of the punches is fixed to the base 58 is an air cylinder 66 located concentrically with respect to the cylinder 59. Inside the cylinder 66 there is a piston 67 that passes through the cover 6 At the end of the piston 67 there is a flange 69, in which there are holes for fixing On the other ends of t g 4 JHa one of the t g 45 is fixed cam 70, which interacts with two microswitches 71 mounted on a bracket 72 fixed on the casing of the stop 39. Bearing 73 and cam 74 are fixed on the front part of the cross member 63 (FIG. 6), through the hole which passes the sleeve 75 with a tapered bore. A bracket 76 is attached to the base plate 2 of the bed. A bracket 77 is mounted on the body hole. A spring-loaded rod 78 is installed in the body hole, one end of which is made with a cone and the other through a double-arm lever 79 with a VO armor, connected to an electromagnet core 81. Spring force adjustment the clamp is carried out using a nut 82. On the case of the clamp there are also fixed two microswitches 83. The rod 32 (Fig.7-9) has, on the surface facing the open side of the groove of the magnetic core, shaped grooves and protrusions, coil guides with guides and performs its deformation. The working sections of the rod are G, D, E. Section W is non-working, and section I is used to secure the rod in the grooves of disk 35 (Fig. 2). The bevel on the rod throughout (section b) is made to the depth AND (Fig. 9), equal to the thickness of the turn, which ensures the free removal of the magnetic circuit at the end of the device operation cycle. The device is equipped with a control panel, has pneumatic and electric systems, ensuring its operation in adjustment and automatic modes. A device for laying short-circuited coils in the grooves of the magnetic circuit of electric machines works as follows. The magnetic circuit assembled with the shaft (figure 2) hand set on. Cup 27 and abut against the center 33. In this case, the rods 32 are inserted into the slots of the stator. The punches 46 are in the initial position. In the gap formed between the punches, the stator and the grooves of the rods in section D (Fig. 7), short-circuited coils 47 (Fig. 2) are manually inserted. After that, by 5Mde are compressed. air enters the upper cavity of the cylinder 16 (Fig. 1), the piston 17 with the rod 18, at the end of which there is a rotating center 19, is lowered and centering takes place. magnetic conductor. In the lower position of the center 19 from the cam 22 sitting on the rod 21, a command of a microswitch (not shown) is given to the air entering the upper cavity of the cylinder 7, which causes the piston 8 to be lowered with the cup 9 until it touches the magnetic conductor. Here, the upper ends of the rods 32 enter the holes of the stack,

9, and its grooves on the outer surface come out of contact with the guides 21 (Fig. 1). The magnetic circuit is pressed to the end of the cup 27 (FIG. 2). This eliminates the licentiousness of the magnetic circuit, since the height of the magnetic core packet at the periphery is greater than that of the shaft. The lower center of the ЗЗ, which rests on the elastic pillow 34, is lowered downwards by a certain amount. In this case, the copier 15 acts on the microswitch 14 ,. which commands the supply of compressed air into the rear cavity of the cylinder (Fig. 1), which causes the piston to move with the rod 51 (Fig. 5) and the rail 40 associated with it, which rotates the cup 27. The entire system rotates the cup 9 - magnetic circuit - a cup 27 - a half ring 38 - rods 32 - a disk 35 -, the coupling 37 is half the pitch of the grooves of the magnetic circuit, which causes the introduction of the teeth of the magnetic poles into the holes of the turns. In this case, the semi-ring 38 (FIG. 5) rests on one of the ends in the locking screw 54. At this time, the cam 55 acts on one of the microswitches 57 which gives a signal to the entry of compressed air into the lower cavity of the cylinder 59. The piston 60 with the rod 61, the cross member 63, clutch 37 and with disk 35 receives translational movement, causing the rods 32 to rise to their middle position. When the rods 32 are moved to a middle position, the sides of the coils are oriented in a groove normal to the inner side surfaces of the head of the teeth. The orientation is carried out by the figured groove of the rod in section 3) (Fig. 7). The fixation of this position is carried out by the rod 78 of the retainer 1, which, under the action of the spring, enters the tapered hole of the sleeve 75 at the cross bar 63. At this moment, a microswitch (not shown) ) which gives the command to stop the supply of compressed air into the lower cavity of the cylinder 59 (figure 1). At the same time, a command is given to supply compressed air to the lower cavity of cylinder 66. A piston 67 with a flange of 6.9 and pushers moves upward the pressure ring 44 (Fig. 2) It causes less movement of punches 46 toward the center of the cup 27. At the same time, punches are inserted the outer sides of the coils 47 into the splines of the teeth and fix them in the extreme upper position of the gland 45, the cam 70 acts on the upper microswitch 71 (FIG. 1), which commands the activation of the electromagnet 81.fixer (FIG. 6). retainer out of the coyus from versti bush 75, free traverse 63.

Thereafter, a command is given to the entry of compressed air into the lower cavity of the cylinder 59 (Fig. 1). The rods 32 (FIG. 2) are further moved to their extreme upper position, which is fixed by the contact of the traverse with the upper adjustable stop 63 (FIG. 1).

Claims (3)

When the rods are moved from the middle position to the uppermost part of them E (Fig. 7), they interact with the inner sides of the coils, making them crimp to fit snugly to the inner side surfaces of the head of the teeth. In this position, the cam 74 (FIG. 6) acts on the upper microswitch 83, which gives a command to supply compressed air to the upper cavity of the cylinder 66. The piston 67 moves. and associated with him g 45 with pressure ring 44 (figure 2) down. Here, the punch 46 is retracted due to the engagement of the shoulders of the Pads 49 (Fig. 3) with inclined grooves on the side surfaces of the punches. The cam 70 (FIG. 1) in its lower position acts on the lower microswitch 71, which commands the supply of compressed air into the front cavity of the cylinder 52, causing movement of the rail 40 (FIG. 2) and returning to the initial position of the cup 27f and therefore magnetic conductor. At the same time, the second end of the semiring 38 (figure 5) abuts against the locking screw 54, fixing the cup 27 in the initial position. The cam 55 acts on the upper microswitch 57, which commands the compressed air to the upper cavity of the cylinder 59, thereby causing the disc 35 to lower to its initial lower position (the locking pin 78 does not prevent the crosshead 63 from moving downwards, as the electromagnet 81 (FIG. 6) excited). : Fixing the lowermost polo; the rods of the rods 32 are provided by the contact of the crosshead 63 with the lower adjustment of the 11m thrust 65. At that, the cam 74 (FIG. 6) acts on the lower microtransmitter 83, which gives a command to supply compressed air to the lower cavity of the cylinder 7, causing, the rise of the glass 9 (figure 1) to the highest position. When the cup 9 is moved upward until it loses contact with the rods 32, its vertical grooves on the outer surface come into contact with the direction of the elements 12 of the bracket 11, which ensures that the grooves 9 of the cup 9 are oriented in their upper position relative to the magnetic circuit grooves in the initial position, The copier 15 in the extreme upper position of the cup 9 acts on the upper microswitch 14, which commands the supply of compressed air into the lower cavity of the cylinder 16, causing the center 19 to rise to its original upper position. The magnetic circuit with the short-circuited coils laid out is removed from the cup 27. Then the indicated cycle of the device operation is repeated. The invention makes it possible to increase the productivity of the device for laying short-circuited turns in the slots of the magnetic circuit of electric machines. Claim 1. Device for laying short-circuited turns in the grooves of a magnetic circuit of electric machines, comprising a housing in which a mechanism for inserting the sides of the coils into the splines of the teeth and fixing them in the slots, a mechanism for orienting the sides of the coils in the groove normal to the inner side surfaces m heads of teeth and crimp them, located inside the mechanism for inserting the sides of the coils into the slots of the teeth and fixing them in the slots, a device for pressing the magnetic conductor to the mechanism for orienting the sides of the coils in the groove and crimping x is located above this mechanism and coaxially with it, the centers for installing the magnetic core, while one of the centers is located inside the mechanism for orienting the sides of the coils into the groove and compressing them, characterized in that, in order to increase productivity, a mechanism for orienting the sides of the coils in the groove and their reduction is made in the form of a cup, equipped with a drive for its rotation and with holes in the bottom, a disk located inside the cup and equipped with a drive of reciprocating axial movement, and rods, the cross section of which corresponds In the shape of the magnetic core groove, along the hinge of the rods in the section corresponding to the upper part of the groove on the side, a bevel is made, and along the axis of symmetry there are successively arranged longitudinal grooves, a protrusion, two communicating spiral grooves with counter-cutting, having widened edges along edges at the same time, the rods are fixed to the disk at one end, and their other ends are located in the holes in the bottom of the glass. 2. The device according to claim 1, characterized in that the mechanism for inserting the sides of the turns into the slots of the teeth and fixing them in the slots is made in the form of a plate with guide elements arranged radially and punches with their reciprocating movement in a plane, perpendicular the pivot axis of the cup, located guide elements, while in the working area of each punch there are parallel protrusions and a fork for accommodating the magnetic circuit, and on the Kaiuix section of the fork there are bevels arranged at an angle to friend. 3. Device according to Claim 1, characterized in that the device for pressing the magnetic conductor to the mechanism for orienting the sides of the coils in the groove and crimping them is made in the form of a glass with holes in the bottom for passing the rods of the mechanism for orienting the sides of the coils in the groove and crimping them, provided drive axial reciprocating movement and installed in the guide elements. Sources of information taken into account during the examination 1. USSR Author's Certificate for Application 2935890 / 24-07,, cl. H 02 K 15/06, 1980. J7 / f-C $ 36 J2 Li: W 36 Phie.2 46 "7 32 .J 50 46 .