SU907712A1 - Device for jet-drop impregnation of windings - Google Patents

Description

(54) DEVICE FOR JET DRILLING

one

The invention relates to technological equipment for spray and drop impregnation of windings and can be used in the electrical industry.

A device for spray and droplet impregnation of the windings, containing a tank for the impregnating composition, equipped with a guide nozzle, a winding fastening mechanism mounted on the drive shaft of its rotation, and a device for heating the windings 1 are known.

The disadvantage of this device is that during the impregnation of concentrated windings of electric machines with clearly expressed poles, a large part of the impregnating composition flows onto the package of the core of the electric maschine.

The closest to the invention to the technical essence is a device for spray and droplet impregnation containing a winding fastening mechanism mounted on a drive shaft of its rotation, a reservoir for impregnating composition mounted on a shaft, in the bottom of which are mounted guide nozzles, the number of which corresponds to the quantity of wort

Washable products, and a device for heating the windings 2.

A disadvantage of the known device is the limited technological capabilities of its use for impregnating coils with viscous impregnating compositions due to the inefficient supply of viscous impregnating composition through nozzles in the impregnation zone.

The purpose of the invention is to expand the technological capabilities of the device through the use of viscous impregnating compositions.

The goal is achieved by the fact that

5 device contains a block with a channel

and nipple connected to the feed system

compressed gas, and on the tank body with

the outer side is made annular collar

with channels communicating with nozzles,

at the same time the pad is spring-loaded to the end

2 annular collars and its channel are communicated

with channels of collar.

FIG. 1 shows a device for spray and droplet impregnation of windings; in fig. 2 shows section A-A in FIG. one.

The device for jet-drip impregnation of the windings comprises a rotational drive shaft 1, a mechanism for fastening electrical product 3 with windings 4 which have lead ends 5 attached to a device for heating the windings (not shown), an impregnation tank 6 provided with an annular collar 7 and guiding nozzles 8 communicating with channels 9 formed in an annular collar 7, block 10, with a channel springed through a brush 11 to the end of an annular collar and provided with a nipple 12 connected to a compressed gas supply system .

The device works as follows.

An electrical product 3 is mounted on the shaft 1 with the windings 4 and fixed by means of the mechanism 2 on the shaft. The terminals 5 of the windings are connected to the terminals of the device for heating the windings through which current is supplied to heat them. A reservoir 6 is installed above the rollers on shaft 1. A block 10 is hinged on the end of annular burr 7 and hingedly connected to a spring-loaded rod 11, which can be moved in a vertical plane parallel to the axis of rotation of the device around a fixed joint.

Shaft 1 is rotated, compressed gas is turned on. The coils are heated to a certain temperature. The impregnating composition is poured into the tank 6 in an amount sufficient to simultaneously impregnate all the rollers. The spring-loaded shoe 10 slides along the rotating surface of the collar 7, remaining in the same place. The impregnating composition is fed to the roller through guiding nozzles only when the roller is in the lower position, when channel 9, which communicates with the guide nozzle, is aligned with the channel in block 10, to which the compressed gas is supplied. The pressure of the compressed gas from the nozzle 8 pushes a certain amount of impregnating composition equal to the volume of the nozzle cavity from the outlet to intersect it with channel 9. With further device rotation, the opening of channel 9 is displaced and the air supply to the nozzle is stopped. During one time

the revolving device, the vacant space of the nozzle cavity is again filled with the impregnating composition, and that volume that has fallen onto the winding extends into the depth of the winding. Due to repeated

passing the coils through the bottom position is complete impregnation of all windings.

After the impregnation is completed, the block 10 is retracted from the plane of the annular collar 7. and swings out on the joint, and the impregnated product together with the reservoir is placed in a horizontal position and continues to rotate. The heating of the coil windings due to the current increases to the polymerization temperature of the impregnating composition.

The invention makes it possible to expand the technological capabilities of a device for spray and drop impregnation of windings by using vzkki impregnating compositions.

Claims (2)

Invention Formula A device for spray and droplet impregnation of windings, comprising a winding fastening mechanism mounted on a rotation drive shaft, a tank for impregnating composition mounted on a shaft, in the bottom of which are mounted guide nozzles, the number of which corresponds to the number of impregnated products, and a device for heating windings, characterized in that, in order to expand technological capabilities by using viscous impregnating compositions, it J contains a block with a channel and a nipple connected to a compressed gas supply system, and an outer collar is formed on the tank body on the outer side with channels communicating with the nozzles, while the block is spring-loaded to the end ring  the collar and its channel are connected to the channels of the collar. Information sources, taken into account in the examination at 1. For the application of the Federal Republic of Germany No. L919.642, cl. 21 d 53, S 1970. 2. USSR author's certificate No. 610252, cl. H 02 K 15/12, 1978. -A goV / 7o