SU1545126A1 - Apparatus for balancing rotors - Google Patents

Abstract

The invention relates to a balancing technique and is intended to balance the rotors under operating conditions. The aim of the invention is to enhance the functionality and reduce the time of the balancing process by reversing the movement of corrective masses using electromagnetic forces. The device consists of two identical assemblies A and B, the sleeves 1 of which are mounted on the rotor 2. The flange 6 of the sleeves 1 is adjacent to a correction weight in the form of a disk 12 with ratchet teeth directed towards each other. The movement mechanism includes a drive disk 17 fastened to the rings 19 and 20, on which ratchet pawns are mounted, which interact with the teeth of the disk 12, and the drive motor with a stator 28 and a rotor, which is the ring 19. For ease of mounting on the rotor, the device has an axial connector and the sleeve 1, the disks 12, 17 and the ring 20 are made of split of the two halves. When voltage is applied to the stator 28, a torque is generated, turning the ring 19 to one side or the other with the driving disk 17, and by means of the dogs of the disk 17 and the teeth of the disk 12, the corrective mass

Description

 The invention relates to a balancing technique and can be used for balancing rotors under operational conditions.

The aim of the invention is to enhance the functionality and (reduce the time of the balancing process by reversing the movement of corrective masses using electromagnetic forces.

Figure 1 shows the proposed device; figure 2 - section aa on, 1; on fig.Z - section bb in fig.

The rotor balancing device consists of two identical units G and jB, the sleeves 1 of which are attached to the rotor 2 {having a 3P flange with the help of pins k and bolts 5. On the flange 6 of the sleeves 1 there are equidistant openings 7p profile grooves 8 and 9 restrictive the grooves 10 and cylindrical fingers 11 are fixed. Flaniu 6 adjoins a correction mass, shaped as a disk 12 with internal ratchet teeth 13 and attached to each other, and aligned open through holes, in which are preloaded flat. springs 1 5 balls 16, locking disk 12 relative to flange 6. The movement mechanism is made in the form of a driving disk 17 with equally spaced holes 18, fastened to the outer ring 19 and the inner ring 20. Cylindrical fingers 21 and ratchet pliers are attached to the driving disk 1 22 and 23} which are in engagement with the ratchet teeth 13 and 1. Snoring dogs have cylindrical shanks 2 and 25, which are included in the profile grooves 8 and 9 of the flange 6. In the ring 20 there are grooves in which the springs 26 are placed

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and 27, designed to interact with the fingers 11 of the flange 6 and the fingers 21 of the disk 17. The movement mechanism also includes a drive motor having a stator 28 and a rotor, which is the ring 19.

For convenience of mounting on the rotor, the device has an axial connector, for which the sleeve 1, the disks 12 and 17, and the ring 20 are made of two halves. The halves of the sleeves 1 and the sleeves 1 are bolted 5, the half-sleeves of the drive disk 17 are connected by means of a split outer ring 19 by bolts 29, and the half of the disk 12 are joined through additional half rings 30 by bolts 31.

The device works as follows

In the initial position, the disc 12 of the correction mass is fixed to the rotating rotor 2 by the balls 16, which go into the holes 7 of the flange 6 and abut against the end of the drive disk 17. At the same time, the ends of the paws 22 and 23 are in the middle of the ratchet teeth 13 and 14, the fingers 21 of the disc 17 are pressed against the springs 27 to the edges of the grooves of the ring 20 and are located in the middle of the restrictive groove 10 of the flange 6. The shanks and 25 dogs 22 and 23 are located in the middle of the profile grooves 8 and 9 of the flange 6.

When voltage s is applied, the stator 28 of the drive motor to the ring 19 is applied a torque due to the interaction of the magnetic fluxes of the stator 28 and the ring 19. When the correction mass moves in the direction of rotation of the rotor under the action of the torque, the drive AISC 17 fastened to the ring 19 moves relative to bushings

1, and the fingers 21 of the disk 17, acting on the ring 20, compress the springs 26.

Rotating the drive disk 17 at a small angle (for example, 3 °) unlocks the disk 12 relative to the flange 6 due to the fact that the hole 18 of the disk 17 faces the ball 16. The shanks 2k of the dogs 22 move in the profile grooves 8, the dogs 22 engage the teeth 13 of the disk 12; and the shanks 25 of the dogs 23, moving in the slots 9, the dogs 23 are pulled out of the engagement with the teeth 1 of the opposite action. Upon further rotation of the drive disk 17, the flange 6 and the disk 12 are rotated with it, and the ball 16 is rolled out of the hole 7 of the flange 6 and, pressing the spring 15, enters the hole 18 of the disk 17, which rotates as far as the finger 21 restrictive groove 10. At this point, the ball 16 is against the adjacent hole 7 of the flange 6 and is inserted into it by the spring 15, fixing the disk 12 in a new position relative to the rotor 2, and the pawls 23 remain disengaged from the tooth 1A.

After the motor is disconnected, the disk 17 and the ring 20 interacting with the fingers 21, under the action of the springs 26, return to their original position, and the disk 17 with its end and the ball 16 fixes the disk 12 in a new position relative to the flange 6 of the hub 1 o

The next time the motor is turned on, the described cycle repeats and the correction mass, made in the form of a disk 12, moves relative to the rotor one more step, equal to the distance between the holes 7 in the flange 6.

To move the correction mass relative to the rotor in the direction opposite to its rotation, a moment of another direction is applied to the ring 19 by reversing the motor. In this case, the movement of the disk 12 is made by dogs 23 interacting with the teeth k, and the drive disk 17 and the ring 20 are returned to their original position by the action of the springs 27.

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Claims (3)

1. A device for balancing rotors, containing sleeves mounted on the rotor, corrective masses with ratchet teeth placed from the sleeves, mechanisms for their movement with ratchet dogs, cylindrical fingers and actuator, and clamps of their position, characterized in that, in order to expand the functional opportunities and reduce the time of the balancing process, each sleeve is made with additional fingers and profile grooves for accommodating cylindrical fingers, each correction weight - with additional storage With a new tooth / counter action in relation to the main one, each movement mechanism is in the form of a disk, covering the correction mass, additional ratchet dogs placed on it, interacting with the main dogs with the ratchet teeth of the corrective mass connected to the ring disk with grooves and placed in them there are elastic elements interacting with fingers, and each ratchet dog is made with a cylindrical finger. 2. The device according to claim 1, characterized in that it is provided with two half rings, and the sleeve, the correction mass, the ring and the disk are split two-half, the sleeve has through axial holes for the bolts connecting the half of the sleeves and the sleeve to one another. , and both halves of the disk are connected to each other with the help of bolts and half-rings adjacent to its end. 3. The device according to claims 1 and 2, distinguished by the fact that the drive is made in the form of an electromechanical energy converter, which is a ring stator and a disk covered by it, which is the converter rotor. . A device according to claim 3, characterized in that, in order to expand the scope of application by arranging it, the stator is made as part of a ring. 14 22 2B 27 1 Aa I |