SU754584A1 - Machine for applying insulation tape onto electric machine winding cores - Google Patents

Description

The invention relates to the process equipment for the manufacture of electrical machines and can be used in the electrical industry.

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Known machine designed for the imposition of cabinet insulation on the rods of the stator windings of electrical machines, containing the frame, the winding head, a self-propelled carriage for the head and guides for the carriage. The design of the machine provides a partial isolation of the windings of the rods with complex spatial formoflobovyh sites. This is achieved by the fact that the guides for the carriage that carries the winding head, form a spatial copier along which the carriage makes complex movements. When applying insulation to the frontal sections of the rod, which have a complex spatial shape, the carriage with the winding head moves along the spatial stationary copier, the processed rod is stationary. Depending on the

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The lengths of the insulated rod are installed one, two or more rod holders that still hold the treated rod during isolation.

The rod holder consists of two levers suspended on a common axis,

In the working position, the levers are lowered and the lower part supports the rectilinear slot part of the insulated rod. When the carriage approaches the rod holder, the roller mounted on the body of the winding head acts on the rod and raises the rod section above the support plane of the rod holder. Under the action of the bevel of the copier, mounted on the upper part of the housing, the thrusters push the levers apart and ensure the free passage of the carriage with the winding head through the core holder area. The supporting roller of the winding head rolling on the insulation rod,. keeps the rod section at a certain height. With further movement3

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The carriage is closed by the rod’s levers and, when the carriage leaves a certain distance ^ lowering, under the action of its own weight, a section of the rod onto the support planes of the rod’s levers.

The disadvantage of the machine design is the possibility of partial destruction of the cabinet insulation of the insulated rod when moving the support roller mounted on the body of the winding head. The contact of the surface of the insulation of the rod with a movable roller is necessary for the operation of the mechanism of the rod holders, since when the arms enter under the rod, the lower plane of the rod section must be located above the reference planes of the rod holders. This machine can not be used to isolate products with different sizes and shape of frontal areas.

The known design of the device for the imposition of cabinet insulation on the rod-like parts of the windings of electric generators, is intended for the imposition of tape insulation on the generator windings, having straight and curvilinear spatial forms of the rod. It is made in the form of a base with a flat top plate on which carriages with a winding head move along a guide gear coping having straight and radius sections. Fixed in the process of isolation, the winding rod is fixed at points along the length with the help of end and intermediate rod holders. Intermediate rod holders are installed in the vertical plane of the slot part of the insulated rod and secured in the lower part of the machine base, as a result of which the winding head is fixed to the drive carriage console, and the carriage with a guide serrated copy is spaced from the £ 23 vertical plane. ^ν When moving a carriage with a winding head along the upper straight surface of the bed in the area of the curved frontal section of the insulated rod, the longitudinal axis of the insulated areas of the frontal part is not perpendicular to the plane of rotation of the gear of the winding head, and the axis of rotation of the gear is not aligned with the second axis of the isolated areas. Failure of these conditions leads to deterioration of the insulation overlay tape on the rod the isolated product as possible slipping tape on the inclined portion of the rod, the winding changes appeared ₅ Leniye wrinkles, breakages and bulk insulating tape.

When moving the carriage with a winding head in the area of the radius sections connecting the slot and frontal parts 10 of the product to be insulated, the copier rail that sets the speed of movement of the carriage and the gears of the winding head with the roll holders of the insulation tape have different linear velocities 15 move. As a result, the step of winding the insulating tape on the radius of the rod changes, which reduces the quality of the winding 20 and increases the consumption of the insulating tape.

The closest to the proposed device is a machine for applying case tape insulation to the windings of electrical machines, comprising a frame made as a base with guides for a carriage with a winding head and columns arranged sideways on which the gearboxes of the mechanism for moving the guide rod with reinforced are mounted on the side on it are rod holders I.

This machine provides a better application of tape is35 'lapis to the winding rods of electrical machines by performing serrated copiers that rotate the axis of rotation of the head when the carriage moves, sliding and installing them with the possibility of 40 limited adjustable pivot stops made by the security forces.

The purpose of the invention is the further expansion of the technological capabilities of the 45 machine and improving the quality of products.

This goal is achieved by the fact that the machine is equipped with pneumatic cylinders and sliders ₅₀ mounted on a rod with worm gears, the worm gears of which are locked from turning relative to sliders, and the bodies are installed rotatably relative to them, while residents _{55 are} mounted on the sliders that can be turned relative to the bodies worm gears and associated with them by means of pneumatic cylinders ..

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FIG. 1 shows the machine, the general view (front); in fig. 2 - machine, general plan view; in fig. 3 is a view A of FIG. 1, at the time of the imposition of insulation on the straight, grooved part _{5 of the} rod; in fig. 4 shows a section BB in FIG. 3 end rod holder head spatial front part of the rod; in fig. 5 shows a section B-B in FIG. 4 end rod holders of the thrust of the spatial frontal part of the rod; in fig. 6 - section G-Y in FIG. 3 intermediate rod holder rectilinear grooves of the insulated rod; in fig. 7 is a sectional view of F-15 in FIG. 6

The machine consists of a base 1, on the upper plane of which is placed a straight guide gear copier 2, for guiding the carriage 3 20

with winding head 4.

To the left and to the right of the base 1 are installed the end parts 5 and 6 of the copying system with supporting posts 7 and 8 and vertical columns 9 25

and 10. The columns are connected by transverse guide beams 11 and 12, on which '. side-mounted gear reducers 13 and 14 connected by chains 15 with hydraulic 30 cylinders 16 of a mechanism for moving an insulated product are movably mounted. Input top gears of each gearbox are engaged with the rails fixedly mounted on the guide beams. 35

The output lower shafts of the left 13 and right 14 gearboxes are connected by a guide rod 17, with movable end rod holders placed on it. shadows 18 and 19 and intermediate 40

rod holders 20 for installation of the insulated product 1 rod). The housings of the left and right gearboxes 13 and 14, having wheels for moving along the guides of the transverse beams 11 and 12, are connected by a 45-traverse beam and, through a chain of 15, the guide sprockets are connected to two guides. cylinders 16, which are placed in vertical columns 9.

Sterzhnederzhate- design terminal ⁵⁰ comprises a middle (see Fig. 5) slide 21c rigidly mounted thereon a worm gear 22. ' On the cylindrical guiding surfaces of the slider installed intermediate housing 23 with ⁵⁵ worm 24 and bearing levers 25 and 26.

On the intermediate casing the pneumatic cylinder 27 is hinged, the rod 28 of which is connected to the bearing arms 25 and 26 of the rod holder. A movable pneumatic cylinder 29 with a bracket 30 is placed in the guides of the lower part of the supporting arms. A restricting bar 31 is also installed there. The worm 24 has a connection with a steering wheel 33 through a chain transmission 32. A reducer 34 with a flywheel 35 connected to a rail 36 is fixed to the slider 21

rods. To reduce the forces of friction mounted rollers 37 and 38.

In the design of the intermediate rod holder 20 (see Fig.7) there is no mechanism for the installation movement of the bearing arms of the rod holder. A pneumatic rig 27 is pivotally mounted on the slider 21 and the rod 28 is connected to the bearing arms of the rod holder.

The rest of the design of the intermediate rod holder is similar to the construction of the end rod holder '.

Works machine as follows.

In the initial position, the carriage 3 is <beyond the end left rod holder 18. With the help of flywheels 35, the terminal and intermediate rod holders are mounted on the guide rod 17 to the position determined by the linear dimensions of the insulated rod.

The handwheel 33 of the terminal rod holders 18 and 19 through the chain drive 32, the worm 24, turns on; the cylindrical surfaces of the slider 21, the intermediate housing 23 with the pneumatic cylinder 27 and the bearing arms 25 and 26 at the angle of the position of the head relative to the groove part of the insulated rod. The insulated product is mounted by a crane on the supports of the left 7 and right 8 supporting posts and intermediate rods of the holders 20. Carriers (the levers of the left rod holder 18 are retracted from the insulated product for the passage of the winding head 4.

The initial position of the isolated product on the machine is depicted by dotted lines in FIG. 3. After manual connection of the Insulating tape with the surface of the insulated rod, the rotational drive of the winding head 4 and the movement of the carriage feed 3 are activated. The carriage with the winding head moves along the guide copier along the contour of the stationary rod to be isolated.

With the passage of the carriage of the machine plot

insulated rod heads using

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known stops and limit switches (not shown.) command is given to

sequential action of pneumatic cylinders 27 and 29.

The pneumatic cylinder 27 brings the bearing ₅ levers 25 and 26 of the rod holder under the insulated product, and then the movable cylinder 29 with the bracket 30 carries out the closure of the rod. When the carriage moves in the area of the radius section of the gadget, and the frontal section of the insulated rod, the limit switches are also affected by adjustable copier stops. Limit switches command to turn on η

hydraulic cylinder rotation of the upper plate of the left end portion 5 of the copying system and the inclusion of hydraulic hydraulics 16, the mechanism for moving the insulated product. The coordination of the speeds of movement of the hydraulic cylinders for turning the upper plate of the end part of the copier system and the hydrocylinders of the mechanism for moving an insulated rod with the speed of movement of the carriage with a winding head 25 is made by the throttles of the safety circuit during the initial setup of the machine.

During the movement of the hydrocylide 16 through the chains 15, the lateral gears 13 and 14 move along the guide beams 11 and 12, the input gears are rolled along the fixed rails and through the intermediate gears, the output shafts rotate the guide rod 17 ₃₅

together with end and intermediate rod holders on which an insulated product is installed. One »· temporarily with straight-line movement of gears along guides of transverse beams, straight-line movement and rotation of rod holders occurs along with isolated products.

When approaching the radius zone connecting the frontal and groove sections ₄₅

rod, the limit switches are affected by the stops of the copier and a command is given to stop the movement of the insulated rod and rotate the top plate of the end part of the copier system.

In the future, the carriage 3 with the winding head 4 moves along the stationary guide to the copier and enters the slotted straight section of the rod. When approaching the intermediate rod- ₅₅ holder from the limit switches, a command is issued for the sequential action of the pneumatic cylinders 29 and 27.

The pneumatic cylinder 29 in the downward movement opens the rod, and then the pneumatic cylinder 27 pulls the bearing arms of the rod holder from the insulated product. The carriage with the winding head passes the zone of installation of the intermediate rod holder and a command is given to supply the bearing arms and to close the rod. The passage of the carriage following rod holders is carried out similarly to that described.

During the return stroke of the carriage with a winding head, the operation of the machine mechanisms and rod holders occurs in reverse order.

The proposed machine design makes it possible to completely isolate the stator rods of the turbogenerators along the entire contour, to improve the quality of the product and the productivity of this laborious and responsible operation.

Claims (1)

Claim Machine for imposing case tape insulation on the rods of the windings of electrical machines, containing a frame made as a base with guides for a carriage with a winding head and columns located on the sides of the base on which the gearboxes of the mechanism for moving the guide rod with the rod holders mounted on it are mounted lichuyusyusya because in order to increase. product quality and expansion of the technological capabilities of the machine, it is equipped with pneumatic cylinders and sliders mounted on the rod with worm gears, worm gears which are locked from turning relative to sliders, and the cases are installed with the possibility of turning relative to them, while the rod holders are mounted on sliders that can be turned relative to the cases of worm mechanisms and associated with them through pneumatic cylinders. • 3