CN108964376B - Auxiliary device for penetrating rotor of generator and operation method thereof - Google Patents
Auxiliary device for penetrating rotor of generator and operation method thereof Download PDFInfo
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- CN108964376B CN108964376B CN201810774884.4A CN201810774884A CN108964376B CN 108964376 B CN108964376 B CN 108964376B CN 201810774884 A CN201810774884 A CN 201810774884A CN 108964376 B CN108964376 B CN 108964376B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
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Abstract
The invention relates to the technical field of generator installation, and discloses an auxiliary device for a generator to penetrate through a rotor and an operation method thereof. The invention can effectively ensure that the rotor stably penetrates into the stator, effectively prevent the rotor from rubbing and colliding with the inner side of the stator, and has low labor intensity of workers.
Description
Technical Field
The invention relates to the technical field of generator installation, in particular to an auxiliary device for a generator to penetrate through a rotor and an operation method thereof, and the auxiliary device is particularly suitable for a large-size generator.
Background
In the installation process of the generator, the operation process of penetrating the rotor into the stator is often involved, the friction and collision between the rotor and the inner side of the stator must be avoided, but the control is often difficult, and particularly for a motor with a large size, the rotor is long, the weight is large, the stable and reliable penetration of the rotor into the stator is difficult to ensure, the control is difficult, and the labor intensity of workers is high.
The present application therefore proposes an auxiliary device for generator through-rotor and a method of operating the same, particularly suitable for large-size generators.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the auxiliary device for the generator to penetrate through the rotor and the operation method thereof are provided, the rotor can be effectively ensured to stably penetrate into the stator, the rotor and the inner side of the stator are effectively prevented from being rubbed and collided, and the labor intensity of workers is low.
The technical scheme adopted by the invention is as follows: the auxiliary device for the generator to penetrate through the rotor comprises a supporting seat, the upper surface of the supporting seat is as high as the upper surface of a mounting base of a rotor bearing seat, the rear end of the mounting base is in contact support with the front end of the supporting seat, two parallel guide rails are fixedly mounted on the upper surface of the supporting seat, the guide rails axially extend to the upper surface of the mounting base, and the length of the extending part of the guide rail on the upper surface of the mounting base is not less than the length of the mounting base, the guide rails are provided with a movable seat, the bottom of the movable seat is provided with two guide grooves, the two guide rails are respectively correspondingly positioned in the two guide grooves and are matched with each other, the upper part of the moving seat is used for placing the rotor bearing seat, and the power mechanism can control the moving seat and the rotor bearing seat to move towards the direction of the motor stator along the axial direction of the guide rail.
So set up, the rotor bearing frame is installed on removing the seat, and the steerable seat that removes of power unit can follow the guide rail direction and remove, and then drives rotor bearing frame along axial displacement, and then realizes in the steady control rotor pierces into the stator along the axial, prevents effectively that rotor and stator inboard from taking place friction and collision, guarantees installation quality, workman low in labor strength.
According to the auxiliary device for the generator rotor penetration, the guide groove extends axially at the bottom of the movable seat, the guide groove is internally and rotatably provided with a plurality of rollers along the length direction, and the rollers are in contact with the upper surface of the guide rail.
So set up for the cooperation of guide slot and guide rail is better, and is better to the bearing capacity that removes the seat and remove on the guide rail, and the setting up of gyro wheel makes the removal of removing the seat on the guide rail more smooth and easy.
According to the auxiliary device for the generator rotor penetration, the guide rail is a smooth cylindrical steel bar and is welded and fixed on the upper surface of the supporting seat, and when the auxiliary device is installed, the bottom end of the side wall of the guide groove downwards exceeds a half of the guide rail.
So set up, the area of contact of columniform billet and guide slot and gyro wheel reduces, has reduced frictional force, and it is more smooth and easy further to make the removal of removing the seat on the guide rail, and simultaneously, the guide slot lateral wall still can prevent to remove the unexpected skew columniform guide rail of seat.
Further, the roller has an annular rolling groove which is in fit contact with the upper end of the cylindrical steel bar, and the annular rolling groove can roll on the upper portion of the steel bar.
So set up for the gyro wheel is better with the cylindrical billet cooperation.
According to the auxiliary device for the generator rotor penetration, the guide rail is fixedly provided with the vertical limiting rod and extends upwards, the top surface of the limiting rod is higher than the bottom surface of the moving seat and lower than the top surface of the moving seat, and the limiting rod is aligned with the front end of the mounting base.
So set up, the gag lever post can effectively prevent to remove unexpected roll-off installation base forward, and simultaneously, the high setting of gag lever post top surface does not influence the guide rail level yet and takes out from rotor bearing frame bottom.
According to the auxiliary device for the generator rotor penetration, the end part of the mounting base is provided with a threaded hole, the end part of the supporting seat is provided with a connecting lug plate, the connecting lug plate is provided with a mounting through hole, and the mounting base is fixedly connected with the supporting seat by penetrating a bolt through the mounting through hole and screwing the bolt into the threaded hole.
So set up for fixed connection and the dismantlement process between supporting seat and the installation base are convenient and fast more.
The power mechanism comprises a nylon belt and two chain blocks, the nylon belt is fixedly bound on the rotor bearing seat, one ends of the two chain blocks are fixedly connected with a fixed foundation, the other ends of the two chain blocks are respectively fixedly connected with two ends of the nylon belt, and the two chain blocks can control the movable seat and the rotor bearing seat to move towards the direction of the motor stator along the axial direction.
So set up, power unit's structure sets up simple and practical, can effective control rotor bearing frame remove to the stator on the guide rail, and is steady effective, installation and dismantlement process convenient and fast.
According to the auxiliary device for the generator rotor penetration, the front end of the movable seat is provided with the limiting step, and the top surface of the limiting step is 1mm higher than the upper surface of the movable seat.
So set up, when the rotor bearing frame was placed on removing the seat, spacing step can form spacingly to the front end of rotor bearing frame, prevents that the rotor bearing frame from moving forward for removing the seat accident, avoids its accident to break away from and removes the seat, and simultaneously, the high setting of spacing step top surface does not influence the removal seat level yet and takes out from rotor bearing frame bottom.
An operation method of the auxiliary device for penetrating the rotor of the generator comprises the following steps:
firstly, fixedly mounting a hoisting auxiliary shaft at the front end of a rotor;
then, the travelling crane is fixedly connected with two lifting points of the rotor through the lifting belts, the rotor is lifted by the travelling crane and slowly moves towards the direction of the stator, and the auxiliary lifting shaft passes through the stator until the front end of the auxiliary lifting shaft passes through the front end of the stator, and at the moment, the rotor is positioned at an inlet at the rear end of the stator and does not pass through the stator;
moving the rotor bearing seat to a position below the rear end of the rotor, jacking a certain height by using a jack, arranging a supporting seat below the rotor bearing seat, adjusting the mounting through hole to be aligned with the threaded hole, penetrating the mounting through hole through a bolt and screwing in the threaded hole to realize fixed connection between the mounting base and the supporting seat, mounting the moving seat on the guide rail, slowly descending the jack, placing the rotor bearing seat on the moving seat, and withdrawing the jack;
slowly controlling the travelling crane to enable the rear end of the rotor to be installed in the rotor bearing seat, fixedly installing a bearing upper cover after calibration, enabling the rear end of the rotor to be fixedly installed in the rotor bearing seat and supporting the rear end of the rotor, erecting a supporting device at the front end of the hoisting auxiliary shaft, supporting the front end of the hoisting auxiliary shaft through the supporting device, loosening the sling and moving the travelling crane, fixedly connecting the sling to the front end of the hoisting auxiliary shaft, hoisting the front end of the rotor, and withdrawing the supporting device;
finally, the nylon belt is fixedly bound on the rotor bearing seat, one end of each of the two hand-pull hoists is fixedly connected on the fixed foundation of the stator end, the other end of each of the two hand-pull hoists is respectively and fixedly connected with the two ends of the nylon belt, the moving seat and the rotor bearing seat are controlled by the two chain blocks to move towards the direction of the motor stator along the axial direction, simultaneously, the travelling crane moves in coordination with the movement of the rotor bearing seat until the moving seat moves to the mounting base, the rotor completely penetrates into the stator, the mounting hole on the rotor bearing seat is adjusted to be aligned with the mounting hole on the mounting base, the chain block and the nylon belt are removed, the rotor bearing seat is jacked up by the jack, the supporting seat and the moving seat are removed, the jack is lowered, so that the rotor bearing seat is placed on the mounting base, and the operation process of penetrating the rotor can be finished through the fixed connection of the bolts, and the subsequent installation process can be carried out.
The power mechanism comprises a hydraulic cylinder, the hydraulic cylinder is fixedly arranged at the rear end of the supporting seat, a hydraulic rod of the hydraulic cylinder is fixedly connected with the rear end of the moving seat, the hydraulic cylinder is connected with an external power device, and the moving seat and the rotor bearing seat can be controlled to move towards the direction of the motor stator along the axial direction by the hydraulic cylinder.
So set up, promoted power unit's degree of automation, the removal process convenient and fast of control rotor bearing frame, workman low in labor strength.
Another method of operating the above-described auxiliary device for generator through-rotor:
firstly, fixedly mounting a hoisting auxiliary shaft at the front end of a rotor;
then, the travelling crane is fixedly connected with two lifting points of the rotor through the lifting belts, the rotor is lifted by the travelling crane and slowly moves towards the direction of the stator, and the auxiliary lifting shaft passes through the stator until the front end of the auxiliary lifting shaft passes through the front end of the stator, and at the moment, the rotor is positioned at an inlet at the rear end of the stator and does not pass through the stator;
moving the rotor bearing seat to a position below the rear end of the rotor, jacking a certain height by using a jack, arranging a supporting seat and a moving seat below the rotor bearing seat, adjusting the mounting through hole to be aligned with the threaded hole, penetrating the mounting through hole through a bolt and screwing the bolt into the threaded hole to realize fixed connection between the mounting base and the supporting seat, slowly descending the jack, placing the rotor bearing seat on the moving seat, and withdrawing the jack;
slowly controlling the travelling crane to enable the rear end of the rotor to be installed in the rotor bearing seat, fixedly installing a bearing upper cover after calibration, enabling the rear end of the rotor to be fixedly installed in the rotor bearing seat and supporting the rear end of the rotor, erecting a supporting device at the front end of the hoisting auxiliary shaft, supporting the front end of the hoisting auxiliary shaft through the supporting device, loosening the sling and moving the travelling crane, fixedly connecting the sling to the front end of the hoisting auxiliary shaft, hoisting the front end of the rotor, and withdrawing the supporting device;
and finally, the action of a hydraulic cylinder is controlled by controlling an external power device, the movable seat and the rotor bearing seat are pushed by a hydraulic rod to move along the axial direction of the motor stator, meanwhile, the traveling crane moves in cooperation with the movement of the rotor bearing seat until the movable seat moves to the mounting base, the rotor completely penetrates into the stator at the moment, the mounting hole in the rotor bearing seat is adjusted to be aligned with the mounting hole in the mounting base, the rotor bearing seat is jacked up by a jack, the supporting seat and the movable seat are withdrawn, the jack is lowered, the rotor bearing seat is placed on the mounting base, the rotor can be penetrated through the bolt fixed connection, and the operation process of penetrating the rotor can be completed, and the subsequent mounting process can be carried out.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the invention can effectively ensure that the rotor stably penetrates into the stator, effectively prevent the rotor from rubbing and colliding with the inner side of the stator, and has low labor intensity of workers.
Drawings
FIG. 1 is a side view of the present invention (without the power mechanism);
FIG. 2 is a top view of the present invention (without the power mechanism);
FIG. 3 is a top view of the present invention (excluding the power mechanism and the motion stage);
FIG. 4 is a side view of the mobile base of the present invention;
FIG. 5 is a front view of the mobile base of the present invention;
FIG. 6 is a side view of the invention (excluding the power mechanism) in mating engagement with the stator and rotor bearing housings;
FIG. 7 is a side view of embodiment 6 of the present invention;
FIG. 8 is a side view of the embodiment 6 of the present invention in cooperation with bearing seats of a stator and a rotor;
fig. 9 is a side view of embodiment 5 of the present invention in cooperation with a bearing housing for a stator or rotor.
Reference numerals: 1 is the supporting seat, 2 is the rotor bearing seat, 3 is the installation base, 4 is the guide rail, 5 is the removal seat, 6 is the guide slot, 7 is the gyro wheel, 8 is the gag lever post, 9 is the engaging lug board, 10 is the nylon tape, 11 is chain block, 12 is fixed basis, 13 is spacing step, 14 is the pneumatic cylinder, 15 is the hydraulic stem, 16 is the stator.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Description of the drawings: the directions in the present application are explained, and the "front-rear" direction in the present application is the same as the axial direction of the rotor, i.e., corresponds to the "left-right" direction in fig. 1.
Example 1
As shown in fig. 1 to 6, an auxiliary device for a generator to penetrate a rotor comprises a support seat 1, the support seat 1 specifically comprises three parallel beams and two parallel longitudinal beams, the beams and the longitudinal beams are channel steel, the beams are axially perpendicular to the rotor, the longitudinal beams are axially parallel to the rotor, the two longitudinal beams are welded and fixed on the upper portions of the three beams, the two longitudinal beams are fixed into a whole by the three beams and form a support for the two longitudinal beams, the upper surface of the support seat 1 is at the same height as the upper surface of an installation base 3 of a rotor bearing seat 2, the upper surface of the support seat 1 is the upper surface of the two longitudinal beams, the rear end of the installation base 3 is in contact with the front end of the support seat 1, the front end of the support seat 1 is the front end of the two longitudinal beams, two parallel guide rails 4 are fixedly installed on the upper surface of the support seat 1, the two guide rails 4 are specifically and fixedly installed on the upper, the length of the extending part of the guide rail 4 on the upper surface of the mounting base 3 is not less than the length of the mounting base 3, the guide rail 4 is provided with a moving seat 5, the bottom of the moving seat 5 is provided with two guide grooves 6, the two guide rails 4 are respectively correspondingly positioned in the two guide grooves 6 and are matched with each other, the upper part of the moving seat 5 is used for placing the rotor bearing seat 2, and the electric motor further comprises a power mechanism (not shown in the figure), and the power mechanism can control the moving seat 5 and the rotor bearing seat 2 to move towards the motor stator 16 along the.
Example 2
As shown in fig. 1, 4 and 5, based on embodiment 1, the guide groove 6 extends axially at the bottom of the movable seat 5, the length of the guide groove 6 is the same as that of the movable seat 5, a plurality of rollers 7 are rotatably installed in the guide groove 6 at regular intervals along the length direction thereof, the rollers 7 contact with the upper surface of the guide rail 4 and can roll on the upper surface of the guide rail 4, the guide rail 4 is specifically a smooth cylindrical steel bar and is welded and fixed on the upper surface of the support seat 1, and the guide rail 4 is correspondingly welded and fixed on the upper surface of the longitudinal beam, when installed, the bottom end of the side wall of the guide groove 6 is more than half of the height of the guide rail 4, further, the rollers 7 have an annular rolling groove (not shown in the figure), the annular rolling groove is in fit contact with the upper end of the cylindrical steel bar, and the.
Example 3
As shown in fig. 1 to 3 and 6, on the basis of embodiment 2, a vertical limiting rod 8 is fixedly welded on the guide rail 4 and extends upward, the top surface of the limiting rod 8 is higher than the bottom surface of the movable seat 5 and lower than the top surface thereof, the limiting rod 8 is aligned with the front end of the mounting base 3, specifically, the length of the extending portion of the guide rail 4 on the upper surface of the mounting base 3 is equal to the length of the mounting base 3, and the limiting rod 8 is fixedly welded on the front end of the guide rail 4.
Example 4
As shown in fig. 1 to 3 and 6, in the embodiment 3, the end of the mounting base 3 has an axial threaded hole (not shown in the figure), the end of the supporting base 1 has a connecting lug plate 9, where the connecting lug plate 9 is welded and fixed at the front ends of the two longitudinal beams, the connecting lug plate 9 has a mounting through hole (not shown in the figure), and the fixing connection between the mounting base 3 and the supporting base 1 is realized by passing a bolt through the mounting through hole and screwing the bolt into the threaded hole.
Example 5
As shown in fig. 1, 2, 4, 5 and 9, on the basis of embodiment 4, the power mechanism includes a nylon belt 10 and two chain blocks 11, the nylon belt 10 is used for being fixedly bound on the rotor bearing seat 2, one end of each of the two chain blocks 11 is used for being fixedly connected to a fixed base 12, and the other end of each of the two chain blocks 11 is respectively used for being fixedly connected to two ends of the nylon belt 10, the fixed base 12 is located on the stator 16 side and provides a working fixed connection point for the chain block 11, and the two chain blocks 11 can control the moving seat 5 and the rotor bearing seat 2 to move in the axial direction of the motor stator 16; simultaneously, the front end of removing seat 5 has spacing step 13, and spacing step 13 top surface exceeds and removes 1mm of seat 5 upper surface, and when rotor bearing frame 2 was placed on removing seat 5, spacing step 13 can form spacingly to the front end of rotor bearing frame 2, prevents that rotor bearing frame 2 from removing forward for removing the seat 5 accident, avoids its accident to break away from and removes seat 5.
An operation method of the auxiliary device for generator rotor penetration of the embodiment 5 is as follows:
firstly, a hoisting auxiliary shaft (not shown in the figure) is fixedly arranged at the front end of a rotor (not shown in the figure);
then, a travelling crane (not shown in the figure) is fixedly connected with two hoisting points of the rotor through a hoisting belt (not shown in the figure), the rotor is hoisted through the travelling crane, the rotor slowly moves towards the direction of the stator 16, and the hoisting auxiliary shaft passes through the stator 16 until the front end of the hoisting auxiliary shaft passes through the front end of the stator 16, and at the moment, the rotor is positioned at an inlet at the rear end of the stator 16 and does not pass through the stator 16;
moving the rotor bearing seat 2 to the position below the rear end of the rotor, jacking a certain height by using a jack (not shown in the figure), arranging the supporting seat 1 below the rotor bearing seat 2, adjusting the mounting through hole to be aligned with the threaded hole, fixedly connecting the mounting base 3 and the supporting seat 1 by penetrating the mounting through hole through a bolt and screwing the bolt into the threaded hole, mounting the movable seat 5 on the guide rail 4, slowly descending the jack, placing the rotor bearing seat 2 on the movable seat 5, and withdrawing the jack;
slowly controlling the travelling crane to enable the rear end of the rotor to be installed in the rotor bearing seat 2, fixedly installing a bearing upper cover after calibration, enabling the rear end of the rotor to be fixedly installed in the rotor bearing seat 2 and supporting the rear end of the rotor, erecting a supporting device (not shown in the figure) at the front end of the hoisting auxiliary shaft, supporting the front end of the hoisting auxiliary shaft through the supporting device, loosening the sling and moving the travelling crane, fixedly connecting the sling to the front end of the hoisting auxiliary shaft, hoisting the front end of the rotor, and withdrawing the supporting device;
finally, the nylon belt 10 is fixedly bound on the rotor bearing seat 2, one end of two hand-pull blocks 11 is fixedly connected on a fixed foundation 12 at the end of the stator 16, the other end is respectively fixedly connected with two ends of the nylon belt 10, the moving seat 5 and the rotor bearing seat 2 are controlled by the two hand-pull blocks 11 to move towards the direction of the motor stator 16 along the axial direction, meanwhile, the traveling crane moves in coordination with the movement of the rotor bearing seat 2 until the moving seat 5 moves to the installation base 3, at the moment, the rotor completely penetrates into the stator 16, the installation hole on the rotor bearing seat 2 is adjusted to be aligned with the installation hole on the installation base 3, the hand-pull blocks 11 and the nylon belt 10 are removed, the rotor bearing seat 2 is jacked up by a jack, the support seat 1 and the moving seat 5 are removed, the jack is lowered, the rotor bearing seat 2 is placed on the installation base 3 and is fixedly connected by bolts, and the, a subsequent installation process may be performed.
Example 6
As shown in fig. 7 and 8, in addition to embodiment 4, the power mechanism includes a hydraulic cylinder 14, the hydraulic cylinder 14 is fixedly mounted at the rear end of the supporting base 1, where the hydraulic cylinder 14 is specifically fixedly mounted on a cross beam at the rear end, a hydraulic rod 15 of the hydraulic cylinder 14 is fixedly connected with the rear end of the movable base 5, the hydraulic cylinder 14 is connected with an external power device (not shown in the figure), and the movable base 5 and the rotor bearing base 2 can be controlled to move in the axial direction towards the motor stator 16 by the hydraulic cylinder 14.
Another operation method of the auxiliary device for generator rotor penetration of the above embodiment 6:
firstly, a hoisting auxiliary shaft (not shown in the figure) is fixedly arranged at the front end of a rotor (not shown in the figure);
then, a travelling crane (not shown in the figure) is fixedly connected with two hoisting points of the rotor through a hoisting belt (not shown in the figure), the rotor is hoisted through the travelling crane, the rotor slowly moves towards the direction of the stator 16, and the hoisting auxiliary shaft passes through the stator 16 until the front end of the hoisting auxiliary shaft passes through the front end of the stator 16, and at the moment, the rotor is positioned at an inlet at the rear end of the stator 16 and does not pass through the stator 16;
moving the rotor bearing seat 2 to the position below the rear end of the rotor, jacking a certain height by using a jack (not shown in the figure), arranging the supporting seat 1 and the moving seat 5 below the rotor bearing seat 2, adjusting the mounting through hole to be aligned with the threaded hole, fixedly connecting the mounting base 3 and the supporting seat 1 by penetrating the mounting through hole through a bolt and screwing the bolt into the threaded hole, slowly descending the jack, placing the rotor bearing seat 2 on the moving seat 5, and withdrawing the jack;
slowly controlling the travelling crane to enable the rear end of the rotor to be installed in the rotor bearing seat 2, fixedly installing a bearing upper cover after calibration, enabling the rear end of the rotor to be fixedly installed in the rotor bearing seat 2 and supporting the rear end of the rotor, erecting a supporting device (not shown in the figure) at the front end of the hoisting auxiliary shaft, supporting the front end of the hoisting auxiliary shaft through the supporting device, loosening the sling and moving the travelling crane, fixedly connecting the sling to the front end of the hoisting auxiliary shaft, hoisting the front end of the rotor, and withdrawing the supporting device;
finally, the action of the hydraulic cylinder 14 is controlled by controlling an external power device (not shown in the figure), and then the movable base 5 and the rotor bearing seat 2 are pushed by the hydraulic rod 15 to move towards the motor stator 16 along the axial direction, meanwhile, the travelling crane moves in cooperation with the movement of the rotor bearing seat 2 until the movable base 5 moves to the mounting base 3, at the moment, the rotor completely penetrates into the stator 16, the mounting hole in the rotor bearing seat 2 is adjusted to be aligned with the mounting hole in the mounting base 3, the rotor bearing seat 2 is jacked up by a jack, the supporting seat 1 and the movable base 5 are withdrawn, the jack is lowered, so that the rotor bearing seat 2 is placed on the mounting base 3 and is fixedly connected by bolts, the operation process of penetrating the rotor can be completed, and the subsequent mounting process can.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.
Claims (9)
1. Auxiliary device for generator rotor penetration, characterized in that: comprises a supporting seat (1), the upper surface of the supporting seat (1) is as high as the upper surface of an installation base (3) of a rotor bearing seat (2), the rear end of the installation base (3) is in contact with and supported by the front end of the supporting seat (1), two parallel guide rails (4) are fixedly installed on the upper surface of the supporting seat (1), the guide rails (4) axially extend to the upper surface of the installation base (3), the length of the extending part of the upper surface of the installation base (3) of each guide rail (4) is not less than that of the installation base (3), a moving seat (5) is installed on each guide rail (4), two guide grooves (6) are arranged at the bottom of the moving seat (5), the two guide rails (4) are respectively correspondingly positioned in the two guide grooves (6) and are matched with each other, the upper part of the moving seat (5) is used for placing the rotor bearing seat (2), the motor stator also comprises a power mechanism, wherein the power mechanism can control the moving seat (5) and the rotor bearing seat (2) to move towards the direction of the motor stator (16) along the axial direction of the guide rail (4); the tip of installation base (3) has the screw hole, the tip of supporting seat (1) has connection otic placode (9), connect and have the installation through-hole on otic placode (9), pass the installation through-hole through the bolt and precession the fixed connection between installation base (3) and supporting seat (1) is realized to the screw hole.
2. Auxiliary device for generator through-the-rotor according to claim 1, characterized in that: the guide slot (6) is at removal seat (5) bottom along axial extension, rotate along its length direction in guide slot (6) and install a plurality of gyro wheel (7), gyro wheel (7) with the upper surface contact of guide rail (4).
3. Auxiliary device for generator through-the-rotor according to claim 2, characterized in that: guide rail (4) are smooth cylindrical billet, and welded fastening in the upper surface of supporting seat (1), during the installation, the bottom of guide slot (6) lateral wall is downwards surpassed half of guide rail (4).
4. Auxiliary device for generator through-the-rotor according to claim 1, characterized in that: the guide rail (4) is fixedly provided with a vertical limiting rod (8) and extends upwards, the top surface of the limiting rod (8) is higher than the bottom surface of the moving seat (5) and is lower than the top surface of the moving seat, and the limiting rod (8) is aligned to the front end of the mounting base (3).
5. Auxiliary device for generator through-the-rotor according to claim 1, characterized in that: the power mechanism comprises a nylon belt (10) and two hand-pulled blocks (11), the nylon belt (10) is fixedly bound on the rotor bearing seat (2), one ends of the two hand-pulled blocks (11) are fixedly connected with a fixed foundation (12), the other ends of the two hand-pulled blocks (11) are respectively fixedly connected with two ends of the nylon belt (10), and the movable seat (5) and the rotor bearing seat (2) can be controlled to move towards the direction of the motor stator (16) along the axial direction through the two hand-pulled blocks (11).
6. Auxiliary device for generator through-the-rotor, according to claim 5, characterized in that: the front end of the moving seat (5) is provided with a limiting step (13), and the top surface of the limiting step (13) is 1mm higher than the upper surface of the moving seat (5).
7. Auxiliary device for generator through-the-rotor according to claim 1, characterized in that: the power mechanism comprises a hydraulic cylinder (14), the hydraulic cylinder (14) is fixedly installed at the rear end of the supporting seat (1), a hydraulic rod (15) of the hydraulic cylinder (14) is fixedly connected with the rear end of the moving seat (5), the hydraulic cylinder (14) is connected with an external power device, and the moving seat (5) and the rotor bearing seat (2) can be controlled to move towards the direction of the motor stator (16) along the axial direction through the hydraulic cylinder (14).
8. Method of operation with an auxiliary device for generator through-the-rotor according to claim 6, characterized in that:
firstly, fixedly mounting a hoisting auxiliary shaft at the front end of a rotor;
then, the travelling crane is fixedly connected with two lifting points of the rotor through lifting belts, the rotor is lifted by the travelling crane and slowly moves towards the direction of the stator (16), and the auxiliary lifting shaft passes through the stator (16) until the front end of the auxiliary lifting shaft passes through the front end of the stator (16), and at the moment, the rotor is positioned at an inlet at the rear end of the stator (16) and does not pass through the stator (16);
moving the rotor bearing seat (2) to the position below the rear end of the rotor, jacking a certain height by using a jack, arranging the supporting seat (1) below the rotor bearing seat (2), adjusting the mounting through hole to be aligned with the threaded hole, penetrating the mounting through hole through a bolt and screwing the threaded hole to realize the fixed connection between the mounting base (3) and the supporting seat (1), then installing the moving seat (5) on the guide rail (4), slowly descending the jack, placing the rotor bearing seat (2) on the moving seat (5), and withdrawing the jack;
slowly controlling the travelling crane to enable the rear end of the rotor to be installed in the rotor bearing seat (2), fixedly installing a bearing upper cover after calibration, enabling the rear end of the rotor to be fixedly installed in the rotor bearing seat (2) and supporting the rear end of the rotor, erecting a supporting device at the front end of the hoisting auxiliary shaft, supporting the front end of the hoisting auxiliary shaft through the supporting device, loosening the sling and moving the travelling crane, fixedly connecting the sling to the front end of the hoisting auxiliary shaft, hoisting the front end of the rotor, and withdrawing the supporting device;
finally, the nylon belt (10) is fixedly bound on the rotor bearing seat (2), one end of each hand-pulled block (11) is fixedly connected to a fixed base (12) at the end of the stator (16), the other end of each hand-pulled block is fixedly connected with two ends of the nylon belt (10), the two hand-pulled blocks (11) are used for controlling the movable seat (5) and the rotor bearing seat (2) to move towards the motor stator (16) along the axial direction, meanwhile, the traveling crane moves in cooperation with the movement of the rotor bearing seat (2) until the movable seat (5) moves to the mounting base (3), the rotor completely penetrates into the stator (16), a mounting hole in the rotor bearing seat (2) is adjusted to be aligned with a mounting hole in the mounting base (3), the hand-pulled blocks (11) and the nylon belt (10) are removed, the rotor bearing seat (2) is jacked up by a jack, the supporting seat (1) and the movable seat (5) are adjusted, and (3) lowering the jack, so that the rotor bearing seat (2) is placed on the mounting base (3), and the operation process of penetrating the rotor can be completed through fixed connection of the bolts, and the subsequent mounting process can be carried out.
9. Method of operation with an auxiliary device for generator through-the-rotor according to claim 7, characterized in that: firstly, fixedly mounting a hoisting auxiliary shaft at the front end of a rotor;
then, the travelling crane is fixedly connected with two lifting points of the rotor through lifting belts, the rotor is lifted by the travelling crane and slowly moves towards the direction of the stator (16), and the auxiliary lifting shaft passes through the stator (16) until the front end of the auxiliary lifting shaft passes through the front end of the stator (16), and at the moment, the rotor is positioned at an inlet at the rear end of the stator (16) and does not pass through the stator (16);
moving the rotor bearing seat (2) to the position below the rear end of the rotor, jacking a certain height by using a jack, arranging the supporting seat (1) and the moving seat (5) below the rotor bearing seat (2), adjusting the mounting through hole to be aligned with the threaded hole, penetrating the mounting through hole through a bolt and screwing in the threaded hole to realize the fixed connection between the mounting base (3) and the supporting seat (1), and slowly descending the jack so that the rotor bearing seat (2) is placed on the moving seat (5) and the jack is removed; slowly controlling the travelling crane to enable the rear end of the rotor to be installed in the rotor bearing seat (2), fixedly installing a bearing upper cover after calibration, enabling the rear end of the rotor to be fixedly installed in the rotor bearing seat (2) and supporting the rear end of the rotor, erecting a supporting device at the front end of the hoisting auxiliary shaft, supporting the front end of the hoisting auxiliary shaft through the supporting device, loosening the sling and moving the travelling crane, fixedly connecting the sling to the front end of the hoisting auxiliary shaft, hoisting the front end of the rotor, and withdrawing the supporting device;
finally, the action of the hydraulic cylinder (14) is controlled by controlling an external power device, the movable base (5) and the rotor bearing seat (2) are pushed to move towards the direction of the motor stator (16) along the axial direction through the hydraulic rod (15), meanwhile, the traveling crane is matched with the movement of the rotor bearing seat (2) to move until the movable base (5) moves to the mounting base (3), the rotor completely penetrates into the stator (16), the mounting hole in the rotor bearing seat (2) is adjusted to be aligned with the mounting hole in the mounting base (3), the rotor bearing seat (2) is jacked up by a jack, the supporting base (1) and the movable base (5) are evacuated, the jack is lowered, the rotor bearing seat (2) is placed on the mounting base (3), the operation process of penetrating the rotor can be completed through fixed connection of bolts, and the subsequent mounting process can be carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774884.4A CN108964376B (en) | 2018-07-16 | 2018-07-16 | Auxiliary device for penetrating rotor of generator and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774884.4A CN108964376B (en) | 2018-07-16 | 2018-07-16 | Auxiliary device for penetrating rotor of generator and operation method thereof |
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| Publication Number | Publication Date |
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| CN108964376A CN108964376A (en) | 2018-12-07 |
| CN108964376B true CN108964376B (en) | 2020-04-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109617334A (en) * | 2019-01-02 | 2019-04-12 | 武汉船用机械有限责任公司 | A kind of motor assembly tooling |
| CN113848024A (en) * | 2020-06-28 | 2021-12-28 | 美的威灵电机技术（上海）有限公司 | Motor test tool |
| CN112202302B (en) * | 2020-08-31 | 2022-07-15 | 国家电网有限公司 | Intelligent anti-collision tool for rotor penetration of phase modifier |
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| CN201113692Y (en) * | 2007-08-20 | 2008-09-10 | 许晓华 | Electric motor complete machine assembling tool equipment |
| CN102820744A (en) * | 2012-08-24 | 2012-12-12 | 中国华冶科工集团有限公司 | Method and device for mounting rotor of large-sized synchronous motor |
| CN103023229A (en) * | 2013-01-07 | 2013-04-03 | 鞍钢建设集团有限公司 | Linear movement core sleeving assembly method of large motor stator |
| CN107359759B (en) * | 2017-09-01 | 2023-07-21 | 华菱安赛乐米塔尔汽车板有限公司 | Device for finishing core penetration of large synchronous motor by utilizing flat car |
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