CN116131560A - Motor rotor drawing-through device and drawing-through method - Google Patents
Motor rotor drawing-through device and drawing-through method Download PDFInfo
- Publication number
- CN116131560A CN116131560A CN202310084615.6A CN202310084615A CN116131560A CN 116131560 A CN116131560 A CN 116131560A CN 202310084615 A CN202310084615 A CN 202310084615A CN 116131560 A CN116131560 A CN 116131560A
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- supporting
- supporting frame
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to the technical field of motor overhaul, in particular to a motor rotor drawing-through device and a drawing-through method, wherein the motor rotor drawing-through device comprises a guide rail, a dummy shaft sleeve, a stator moving device and a rotor supporting device, and the stator moving device is used for supporting a stator to move along the guide rail; the rotor supporting device is adjustable in height and is used for supporting the rotor and enabling the center line of the rotor and the center line of the stator to be on the same horizontal line, and comprises a first supporting frame, a second supporting frame and a third supporting frame, wherein the first supporting frame and the second supporting frame are used for supporting one side of the rotor, the third supporting frame are arranged at intervals, the distance which is greater than the axial length of the stator is reserved between the first supporting frame and the second supporting frame, the distance is greater than the axial length of the stator, the distance is formed by a longitudinal arm, a movable arm and a driving motor used for driving the movable arm to rotate, and a cross arm matched with the top of the longitudinal arm, the movable arm and the driving motor are erected between the two movable arms. According to the invention, the movable arm rotates to enable the stator moving device to enter/move out and support the dummy shaft sleeve, so that frequent removal and mounting of a bracket are not needed, and the working efficiency is improved. A motor rotor drawing-through device and a drawing-through method.
Description
Technical Field
The invention relates to the technical field of motor overhaul, in particular to a motor rotor drawing-through device and a drawing-through method.
Background
In the traditional large motor overhaul process, the large motor rotor back-threading process usually needs to be suspended by means of factory crane, such as a steam turbine generator shaft core-threading device disclosed in China patent CN207265842U and a core-pulling method for large motor overhaul disclosed in China patent CN 107204690B.
When the motor rotor of the Huacan Taicang power plant is penetrated back in the motor maintenance process, the horizontal platform plate vehicle and the supporting frame are matched for penetrating back. The operation process is as follows: the motor stator is hoisted on a horizontal platform plate vehicle and supported by a second support and a third support, a dummy shaft sleeve is hoisted at the center, one end of the dummy shaft sleeve is sleeved on a motor rotor shaft, the other end of the dummy shaft sleeve is placed on a first support, the first support is removed, the first support is installed after the horizontal platform plate vehicle enters, the second support is removed, the position of the stator is adjusted through a positioning knob on the horizontal platform plate vehicle, and the heights are adjusted through the first support and the third support, so that the center line of the stator and the center line of the rotor are on the same horizontal line. Pushing the horizontal platform plate vehicle to move the stator back into the stator bore. However, the above methods have a number of drawbacks and disadvantages.
The frequent disassembly and the installation of the support can lead the platform truck to pass, thereby increasing extra workload; secondly, the staff need to manually carry out frequent adjustment with the orientation of adjustment stator to four positioning knob on the horizontal platform scooter, and waste time and energy, slightly carelessly will make the stator take place the skew. In addition, if the centers of the stator and the rotor in the horizontal direction are not aligned, a plurality of people are required to continuously rotate the positioning knob, so that the stator is rotated by a certain angle, the stator and the rotor are prevented from being rubbed in the horizontal direction, and the personal safety of staff is risked.
In summary, the existing rotor back-threading process has some drawbacks and disadvantages, and a corresponding technical scheme needs to be designed to solve the drawbacks and disadvantages.
Disclosure of Invention
The invention aims to provide a motor rotor drawing-through device and a drawing-through method, wherein a movable arm rotates to enable a stator moving device to enter/move out and support a dummy shaft sleeve, a bracket does not need to be frequently removed and installed, in addition, the stator moving device is used for supporting a stator, the direction of the stator does not need to be frequently adjusted, the stator moving device is used for driving the stator to move along a guide rail, so that a rotor can be easily penetrated into the stator, the collision and abrasion between the stator and the rotor are avoided, and the structural damage of the stator and the rotor is effectively prevented.
The embodiment of the invention is realized by the following technical scheme: the motor rotor drawing-through device comprises a guide rail, a dummy shaft sleeve, a stator moving device and a rotor supporting device, wherein the guide rail consists of two steel rails which are arranged in parallel, the dummy shaft sleeve is sleeved on a rotor shaft which is close to one side of the stator moving device, and the stator moving device is used for supporting a stator to move along the guide rail;
the rotor supporting device is adjustable in height and is used for supporting the rotor and enabling the center line of the rotor and the center line of the stator to be on the same horizontal line, and comprises a first supporting frame, a second supporting frame and a third supporting frame, wherein the first supporting frame and the second supporting frame are used for supporting one side of the rotor, the first supporting frame and the second supporting frame are arranged at intervals, a distance larger than the axial length of the stator is reserved between the first supporting frame and the second supporting frame, the distance between the first supporting frame and the second supporting frame is formed by a longitudinal arm, a movable arm and a driving motor used for driving the movable arm to rotate, a cross arm matched with the top of the longitudinal arm is further erected between the two movable arms, and the stator can sequentially penetrate through the first supporting frame and the second supporting frame along the center line of the rotor and the center line of the stator after being supported on the stator moving device.
According to a preferred embodiment, the stator moving device comprises a movable frame plate symmetrically arranged on two steel rails and in sliding fit with the steel rails, a bearing plate rotatably arranged on the movable frame plate, and a supporting assembly arranged on the bearing plate and used for supporting the stator.
According to a preferred embodiment, opposite sides of the symmetrically disposed support members are curved.
According to a preferred embodiment, the rotor support device is arranged between two rails.
According to a preferred embodiment, the third support frame is a hydraulic control lifting support frame.
According to a preferred embodiment, the number of the third supporting frames is two.
The invention also provides a drawing-through method of the motor rotor drawing-through device, which comprises the following steps:
hoisting the rotor to the second support frame and the third support frame;
the false shaft sleeve is sleeved on the rotor shaft, and the rotor is supported by the first support frame, the second support frame and the third support frame;
hoisting the stator to the stator moving device, and adjusting the heights of the second support frame and the third support frame to enable the center line of the rotor and the center line of the stator to be on the same horizontal line;
slowly moving the stator moving device to move the stator along the horizontal line;
the movable arm on the first support frame is driven to rotate by the driving motor, after the stator moving device supports the stator to pass through the upper part of the longitudinal arm on the first support frame and penetrate back to the first support frame and the second support frame, the movable arm on the first support frame is driven to rotate by the driving motor, and the movable arm on the second support frame is driven to rotate by the driving motor, and after the stator moving device supports the stator to pass through the upper part of the longitudinal arm on the second support frame, the stator moves continuously along the horizontal line to enable the rotor to penetrate back to the stator bore.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects: (1) The rotor is supported by the support frame, the horizontal height of the rotor is adjusted, the central lines of the stator and the rotor are aligned, the stator is driven by the stator moving device to move along the guide rail, the rotor can be easily penetrated into the stator, the collision and abrasion between the stator and the rotor are avoided, and the structural damage of the stator and the rotor is effectively prevented;
(2) The stator moving device is rotated by the movable arm to enter/move out and support the dummy shaft sleeve, so that the bracket is not required to be frequently removed and installed, and the working efficiency is improved;
(3) The stator is supported through the stator moving device, the direction of the stator is not required to be frequently adjusted, the matching requirement on staff is not high, and the labor cost is reduced.
Drawings
Fig. 1 is a side view and a top view of a rotor penetration apparatus according to embodiment 1 of the present invention;
fig. 2 is a side view of the stator moving device passing through the second support frame in the rotor back-threading process according to embodiment 1 of the present invention;
FIG. 3 is a side view of a rotor penetrating into a stator during a rotor back-pass provided in embodiment 1 of the present invention;
fig. 4 is a side view of the rotor according to embodiment 3 of the present invention when the dummy shaft sleeve, the first support frame, and the second support frame are removed and sleeved into the end cover;
FIG. 5 is a side view of the rotor of embodiment 3 with the end cap installed during the rotor back-threading process;
FIG. 6 is a side view of the rotor of embodiment 3 at the completion of the rotor pass-back process;
icon: 100-guide rails, 200-dummy shaft sleeves, 300-stator moving devices, 310-movable frame plates, 320-bearing plates, 330-supporting components, 400-rotor supporting devices, 410-first supporting frames, 420-second supporting frames, 430-third supporting frames, 411-trailing arms, 412-movable arms, 413-driving motors, 414-cross arms, 500-stators, 600-rotors and 700-end covers.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
Referring to fig. 1, fig. 1 is a side view and a top view of a rotor penetration apparatus according to an embodiment of the present invention.
The motor rotor penetrating device provided by the embodiment of the invention comprises a guide rail 100, a dummy shaft sleeve 200, a stator moving device 300 and a rotor supporting device 400, wherein the guide rail 100 consists of two parallel steel rails, the dummy shaft sleeve 200 is sleeved on a rotor 600 shaft close to one side of the stator moving device 300, and the stator moving device 300 is used for supporting a stator 500 to move along the guide rail 100.
Specifically, the rotor supporting device 400 has an adjustable height, is configured to support the rotor 600 and make the center lines of the rotor 600 and the stator 500 on the same horizontal line, and includes a first supporting frame 410, a second supporting frame 420, and a third supporting frame 430, which are configured to support one side of the rotor 600, and are configured to support the other side of the rotor 600, where the first supporting frame 410 and the second supporting frame 420 are spaced apart, a distance greater than the axial length of the stator 500 is reserved between the first supporting frame 410 and the second supporting frame 420, and each of the two supporting frames is composed of a longitudinal arm 411, a movable arm 412, and a driving motor 413 for driving the movable arm 412 to rotate, and a cross arm 414 matched with the top of the two movable arms 412 is also erected between the two movable arms 412; in one implementation manner of this embodiment, the cross arm 414 is clamped with the top of the movable arm 412, when the driving motor 413 is electrified to drive the movable arm 412 to rotate and open, the cross arm 414 is released from clamping with the top of the movable arm 412, and when the driving motor 413 is electrified to drive the movable arm 412 to rotate and close, the cross arm 414 is clamped with the top of the movable arm 412; further, in order to improve the stability of the cross arm 414 for supporting the rotor 600 shaft and the dummy shaft sleeve 200, a triangular reinforcing structure is disposed on the inner side of the cross arm 414 connected to the movable arm 412, specifically, one end of the triangular reinforcing structure is connected to the movable arm 412, and the other end of the triangular reinforcing structure abuts against the inner side of the cross arm 414.
Referring to fig. 2 and 3, in particular, the present invention enables the stator 500 to be transferred through the first support frame 410 and the second support frame 420 in sequence along the center line of the rotor 600 and the stator 500 after being supported on the stator moving device 300 by the supporting movement of the stator moving device 300 and the rotation of the movable arm 412, thereby avoiding frequent adjustment of the support while achieving the support of the rotor 600. In summary, the rotor penetration device provided by the embodiment of the invention has at least the following advantages: (1) The rotor is supported by the support frame, the horizontal height of the rotor is adjusted, the central lines of the stator and the rotor are aligned, the stator is driven by the stator moving device to move along the guide rail, the rotor can be easily penetrated into the stator, the collision and abrasion between the stator and the rotor are avoided, and the structural damage of the stator and the rotor is effectively prevented;
(2) The stator moving device is rotated by the movable arm to enter/move out and support the dummy shaft sleeve, so that the bracket is not required to be frequently removed and installed, and the working efficiency is improved;
(3) The stator is supported through the stator moving device, the direction of the stator is not required to be frequently adjusted, the matching requirement on staff is not high, and the labor cost is reduced.
Example 2
The embodiment of the invention is further improved based on the embodiment, and the improvement is as follows:
the stator moving apparatus 300 includes a movable frame plate 310 symmetrically disposed on two rails and slidably engaged with the rails, a carrier plate 320 rotatably installed on the movable frame plate 310, and a support assembly 330 disposed on the carrier plate 320 for supporting the stator 500. It should be noted that, when the stator 500 needs to be transferred by the stator moving device 300, the driving motor 413 electrically connected to the carrier plate 320 is energized to drive the carrier plate 320 to rotate outwards along the movable frame plate 310, so as to open the opening at the top of the stator moving device 300, after the stator 500 is hoisted to a corresponding position, the driving motor 413 drives the carrier plate 320 to rotate inwards along the movable frame plate 310, and the supporting components 330 arranged on two sides of the steel rail clamp the stator 500, so that the adjustment of the orientation of the stator 500 can be completed at one time.
Further, in order to improve the stability of clamping the stator 500, opposite sides of the two symmetrically arranged support members 330 are curved.
Further, the rotor supporting device 400 is disposed between two rails, and the top of the rotor supporting device 400 is configured in an arc shape to cooperate with the rotor 600 shaft and the dummy shaft sleeve 200, so as to prevent the rotor supporting device from being offset by external force.
Further, the third supporting frame 430 is a supporting frame that is hydraulically controlled to lift, so as to hydraulically adjust the height of the rotor 600; specifically, the number of the third supporting frames 430 is two.
According to the embodiment of the invention, the stator is supported by the stator moving device with the arc-shaped supporting component, the direction of the stator does not need to be frequently adjusted, the matching requirement on staff is low, and the labor cost is reduced.
Example 3
The embodiment of the invention provides a drawing-through method of the motor rotor drawing-through device, which comprises the following steps:
hoisting the rotor 600 to the second support frame 420 and the third support frame 430; the dummy shaft sleeve 200 is sleeved on the shaft of the rotor 600, and supports the rotor 600 through the first support frame 410, the second support frame 420 and the third support frame 430; hoisting the stator 500 to the stator moving device 300, and adjusting the heights of the second support frame 420 and the third support frame 430 so that the center line of the rotor 600 and the center line of the stator 500 are on the same horizontal line; slowly moving the stator moving means 300 to move the stator 500 along the horizontal line; the movable arm 412 on the first support frame 410 is driven to rotate by the driving motor 413, after the stator moving device 300 supports the stator 500 to pass through the upper part of the longitudinal arm 411 on the first support frame 410 and pass back through the first support frame 410 and the second support frame 420, the movable arm 412 on the first support frame 410 is driven to rotate by the driving motor 413, and the movable arm 412 on the second support frame 420 is driven to rotate by the driving motor 413, after the stator moving device 300 supports the stator 500 to pass through the upper part of the longitudinal arm 411 on the second support frame 420, the stator moving device continues to move along the horizontal line to enable the rotor 600 to pass back through the stator 500 bore; referring to fig. 4 to 6, further, end caps 700 are sleeved on the rotor 600 shafts at both sides of the stator 500, and after the end caps 700 are successfully installed, the relevant brackets are removed, thus completing the rotor 600 back-threading operation.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The motor rotor drawing-through device comprises a guide rail (100), a dummy shaft sleeve (200), a stator moving device (300) and a rotor supporting device (400), wherein the guide rail (100) consists of two steel rails which are arranged in parallel, and is characterized in that the dummy shaft sleeve (200) is sleeved on a rotor (600) shaft which is close to one side of the stator moving device (300), and the stator moving device (300) is used for supporting a stator (500) to move along the guide rail (100);
the rotor supporting device (400) is adjustable in height, and is used for supporting the rotor (600) and enabling the center line of the rotor (600) and the stator (500) to be on the same horizontal line, and comprises a first supporting frame (410) used for supporting one side of the rotor (600), a second supporting frame (420) and a third supporting frame (430) used for supporting the other side of the rotor (600), wherein the first supporting frame (410) and the second supporting frame (420) are arranged at intervals, a distance larger than the axial length of the stator (500) is reserved between the first supporting frame (410) and the second supporting frame (420), the distance is reserved between the first supporting frame and the second supporting frame, the distance is formed by a longitudinal arm (411), a movable arm (412) and a driving motor (413) used for driving the movable arm (412) to rotate, a cross arm (414) matched with the top of the longitudinal arm is further erected between the two movable arms (412), and through supporting movement of the stator moving device (300) and rotation of the movable arm (412), and the stator (500) can sequentially penetrate through the first supporting frame (410) and the second supporting frame (420) along the center line of the rotor (600) and the stator (500) after being supported on the stator moving device (300).
2. The motor rotor drawing-through device according to claim 1, wherein the stator moving means (300) comprises a movable frame plate (310) symmetrically disposed on both rails and slidably fitted with the rails, a bearing plate (320) rotatably mounted on the movable frame plate (310), and a supporting assembly (330) provided on the bearing plate (320) for supporting the stator (500).
3. An electric motor rotor drawing-through device according to claim 2, characterized in that opposite sides of the symmetrically arranged support members (330) are arc-shaped.
4. A rotor threading device for an electric machine according to any one of claims 1 to 3, characterized in that the rotor support means (400) are arranged between two rails.
5. The motor rotor drawing-through device according to claim 4, wherein the third support frame (430) is a hydraulically controlled lifting support frame.
6. The motor rotor drawing-through device according to claim 5, wherein the number of the third supporting frames (430) is two.
7. A method of drawing through a motor rotor drawing-through device according to any one of claims 1 to 6, comprising the steps of:
hoisting the rotor (600) to the second support frame (420) and the third support frame (430);
the dummy shaft sleeve (200) is sleeved on the shaft of the rotor (600), and the rotor (600) is supported by the first supporting frame (410), the second supporting frame (420) and the third supporting frame (430);
hoisting the stator (500) to the stator moving device (300), and adjusting the heights of the second support frame (420) and the third support frame (430) to enable the center line of the rotor (600) and the center line of the stator (500) to be on the same horizontal line;
slowly moving the stator moving means (300) to move the stator (500) along the horizontal line;
after the stator moving device (300) supports the stator (500) to pass through the upper part of the longitudinal arm (411) on the first support frame (410) and pass back through the first support frame (410) and the second support frame (420), the driving motor (413) drives the movable arm (412) on the first support frame (410) to rotate, and the driving motor (413) drives the movable arm (412) on the second support frame (420) to rotate, the stator moving device (300) supports the stator (500) to pass through the upper part of the longitudinal arm (411) on the second support frame (420), and then continues to move along the horizontal line to enable the rotor (600) to pass back through the chamber of the stator (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310084615.6A CN116131560A (en) | 2023-02-08 | 2023-02-08 | Motor rotor drawing-through device and drawing-through method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310084615.6A CN116131560A (en) | 2023-02-08 | 2023-02-08 | Motor rotor drawing-through device and drawing-through method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116131560A true CN116131560A (en) | 2023-05-16 |
Family
ID=86302550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310084615.6A Pending CN116131560A (en) | 2023-02-08 | 2023-02-08 | Motor rotor drawing-through device and drawing-through method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116131560A (en) |
-
2023
- 2023-02-08 CN CN202310084615.6A patent/CN116131560A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102171451A (en) | Maintenance system for wind turbine equipment | |
| CN209767336U (en) | Drawing-through rotor device and drawing-through rotor equipment | |
| CN113381569A (en) | Motor rotor penetrating device | |
| CN108964376B (en) | Auxiliary device for penetrating rotor of generator and operation method thereof | |
| CN116131560A (en) | Motor rotor drawing-through device and drawing-through method | |
| CN108907848A (en) | A kind of energy conservation and environmental protection building sheet organisation of working | |
| CN213765643U (en) | Multi-direction adjustable assembly platform | |
| CN215990502U (en) | Electric induction motor rotor drawing-penetrating device | |
| CN205257845U (en) | Small -size hoisting machine utensil | |
| CN209239437U (en) | A kind of disassembling fixture | |
| CN215267997U (en) | Motor rotor penetrating device | |
| CN219694519U (en) | Detection tool for turbine rotating member | |
| CN216190514U (en) | Lifting device for chemical machinery maintenance | |
| CN212425286U (en) | Hoisting device capable of supporting pressing plate | |
| CN221428737U (en) | Motor rotor drawing-through device | |
| RU1787053C (en) | Arrangement for replacing cantilever rolls and relating equipment in rolling mills | |
| JPH07308050A (en) | Elevator motor mounting/dismounting device | |
| CN217257185U (en) | Steel mould leveling device | |
| CN220244742U (en) | Lifting device for pipe feeding machine | |
| CN218427264U (en) | Drilling equipment that aerospace combined material used | |
| CN221253372U (en) | High-voltage cable showing and placing frame | |
| CN220575000U (en) | Laser marking equipment | |
| CN221565570U (en) | Building templates lifting device | |
| CN215593148U (en) | Quenching device for producing cylindrical roller bearing ring | |
| CN218714828U (en) | A protection platform for concrete safety is pour |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |