CN112636550A - Vertical motor rotor overhauling device and method - Google Patents
Vertical motor rotor overhauling device and method Download PDFInfo
- Publication number
- CN112636550A CN112636550A CN202011573073.1A CN202011573073A CN112636550A CN 112636550 A CN112636550 A CN 112636550A CN 202011573073 A CN202011573073 A CN 202011573073A CN 112636550 A CN112636550 A CN 112636550A
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- China
- Prior art keywords
- support
- motor rotor
- screw
- vertical motor
- shaft sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
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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
Abstract
The invention belongs to the technical field of overhaul of large-scale rotating equipment of nuclear power stations, and particularly relates to an overhaul device and an overhaul method of a vertical motor rotor, wherein the overhaul device comprises a support, a support ring, support legs, a base plate, a shaft sleeve and an anti-tilting screw rod; the support is a square frame structure and is provided with a middle plane and a lower plane, support legs of the support are fixedly connected with the base plate, the support ring is fixed at the center of the middle plane of the support, the shaft sleeve is fixed at the center of the lower plane of the support, and the anti-tilting screw is arranged at the upper part of the support. The invention has simple structure and convenient operation, simplifies the hoisting operation steps and improves the operation safety.
Description
Technical Field
The invention belongs to the technical field of overhaul of large-scale rotating equipment of nuclear power stations, and particularly relates to an overhaul device and method for a vertical motor rotor.
Background
The application of a rotor in a motor in rotating equipment of a nuclear power station is very common, and the motor rotor refers to a rotating body supported by a bearing and is mainly a main rotating part in power machinery and working machinery. The maintenance work of large and medium-sized motors in nuclear power plants needs the work of extracting and installing the motor rotor, and the work of correctly extracting the motor rotor is very important for ensuring the normal use in the future. For large and medium-sized motors, since the motor rotor is heavy, the rotor should be drawn out using a crane. During operation, the rotor is lifted by hanging the gravity center of the rotor by a hanging belt of a crane, and the rotor is taken out with special care to prevent the rotor from being scratched. The main difficulties of the prior large vertical motor in the maintenance process comprise the following aspects: in the hoisting and overturning operation of the motor rotor, the hoisting height of a crane in a factory building is limited due to the large volume of equipment, and high-risk operation of overturning the motor rotor is required. The large hook and the small hook are matched for use in the overturning process, so that the whole hoisting operation is high in difficulty and risk. The safety of personnel and equipment during the hoisting operation is difficult to ensure.
Therefore, it is necessary to provide a device and a method for overhauling a vertical motor rotor to solve the defects in the prior art.
Disclosure of Invention
The invention aims to provide a vertical motor rotor overhauling device and a vertical motor rotor overhauling method.
The technical scheme for realizing the purpose of the invention is as follows:
a vertical motor rotor overhauling device comprises a support, a support ring, a base plate, support legs, a shaft sleeve and an anti-tilting screw rod;
the support is a square frame structure and is provided with a middle plane and a lower plane, support legs of the support are fixedly connected with the base plate, the support ring is fixed at the center of the middle plane of the support, the shaft sleeve is fixed at the center of the lower plane of the support, and the anti-tilting screw is arranged at the upper part of the support.
And an adjusting screw and a locking nut are arranged between the support ring and the bracket.
And a support base plate is fixed on the support ring through a screw and is in contact with the motor rotor.
The support backing plate adopt H62 brass material, avoid hoist and mount transportation in-process to cause the damage to electric motor rotor surface.
The support is fixed with the shaft sleeve through a screw, the shaft sleeve plays roles in hoisting, positioning and guiding, so that the motor rotor and the whole central line of the support are superposed, and the hoisting stability is ensured.
The support eliminates the support shaking caused by uneven field through the adjusting screw.
The upper part of the bracket is provided with 4 anti-tilting screw rods which are pushed by rotating the screws, so that the motor rotor is prevented from laterally tilting.
The top of the anti-tilt screw is provided with an arc-shaped backing plate, and the arc-shaped backing plate is fixedly connected with the anti-tilt screw through a bolt.
The arc backing plate adopts PA66 material, avoids causing the insulating varnish damage when the contact with motor rotor coil.
The maintenance method of the vertical motor rotor maintenance device comprises the following steps:
step one, hoisting a support to an overhaul site, and locking the support after the support is adjusted and stabilized;
placing the motor rotor on a support ring on the maintenance support, placing a level gauge on the upper end face of the support ring for levelness adjustment, and fixing the shaft sleeve and the support;
thirdly, after the motor rotor is located, the anti-tilting screw is pushed to lock and position by rotating and adjusting the inner hexagonal cylindrical head screw;
and fourthly, observing whether the surface of the motor rotor is damaged, and hoisting the motor rotor back to the interior of the motor after the work is finished.
The invention has the beneficial technical effects that:
(1) the large-scale vertical motor rotor maintenance support is simple in structure and convenient to operate;
(2) according to the large-scale vertical motor rotor maintenance support, the rotor can be vertically stored, the hoisting operation steps are simplified, and the operation safety is improved;
(3) according to the large-scale vertical motor rotor overhauling support, the adjusting screws are designed on the ground feet, so that the risk of equipment toppling due to the fact that a storage site is uneven can be avoided;
(4) according to the large-scale vertical motor rotor maintenance support, the support plane is provided with the adjusting screw, the support plane can be horizontally adjusted with high precision by means of a measuring instrument, and the storage safety is guaranteed;
(5) the large-scale vertical motor rotor maintenance support is provided with the four limiting screw rods, and can be used for radially restraining the rotor, so that the risk of dumping the rotor due to overhigh gravity center can be avoided.
Drawings
FIG. 1 is a schematic structural view of a vertical motor rotor maintenance device provided by the present invention;
in the figure: 1-a motor rotor; 2-a scaffold; 3-supporting the base plate; 4-a support ring; 5-backing plate; 6-support leg; 7-shaft sleeve; 8-arc base plate; 9-a screw; 10-anti-tilt screw.
Detailed Description
In order to make those skilled in the art better understand the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention. It should be apparent that the embodiments described below are only some, but not all, of the embodiments of the present invention. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present invention.
As shown in figure 1, the invention provides a vertical motor rotor maintenance device, which comprises a bracket 2, a support base plate 3, a support ring 4, a base plate 5, support legs 6, a shaft sleeve 7, an arc base plate 8, screws 9 and an anti-tilting screw 10.
The stabilizer blade 6 of support 2 is connected with backing plate 5 through adjusting screw and plain washer, and after the maintenance place was placed to support 2, through adjusting screw, the elimination rocked because of support 2 that the place unevenness produced.
After the support 2 is adjusted stably, the adjusting screw is locked through the nut.
The platform in the middle of the bracket 2 is fixedly connected with the support ring 4 through bolts and flat washers.
The motor rotor 1 is placed on a support ring 4 on the service bracket 2.
Set up adjusting screw and lock nut between support ring 4 and support 2, can adjust the stability that motor rotor 1 placed with the help of the spirit level to the up end levelness of support ring 4.
Be equipped with supporting baseplate 3 on the support ring 4, with the contact of electric motor rotor 1, supporting baseplate 3 adopts H62 brass material, and is fixed through screw and support ring 4, avoids the hoist and mount transportation in-process to cause the damage to electric motor rotor 1 surface.
The center of the bottom of the bracket 2 is provided with a shaft sleeve 7 which is fixed with the bracket 2 through screws.
When the motor rotor 1 is hoisted and placed on the support 2, the shaft sleeve 7 plays roles of hoisting, positioning and guiding, and the coincidence of the integral central lines of the motor rotor 1 and the support 2 is ensured, so that the hoisting stability is ensured.
4 anti-tilt screw rods 10 are arranged on the upper portion of the support 2, the anti-tilt screw rods 10 are pushed by rotating the adjusting nuts after the motor rotor 1 falls, and therefore the motor rotor 1 is prevented from laterally tilting due to overhigh gravity center in the storage process.
After the anti-tilt screw 10 is adjusted in place, the anti-tilt screw 10 is limited and fixed through the nut, and looseness of the anti-tilt screw 10 is avoided.
Prevent inclining the screw rod 10 top and be equipped with arc backing plate 8, arc backing plate 8 passes through the bolt with prevent inclining screw rod 10 and the plain washer is fixed, and arc backing plate 8 adopts the PA66 material, avoids causing the insulating varnish damage in the contact process with electric motor rotor 1 coil.
The screw 9 is a socket head cap screw.
The invention also provides a maintenance method of the vertical motor rotor maintenance device, which comprises the following steps:
step one, hoisting a bracket 2 to an overhaul site, and locking the bracket 2 after the bracket 2 is adjusted and stabilized;
secondly, the motor rotor 1 is placed on a support ring 4 on the maintenance support 2, a level gauge is placed on the upper end face of the support ring 4 for levelness adjustment, and the shaft sleeve 7 is fixed with the support 2;
thirdly, after the motor rotor 1 is located, the anti-tilting screw 10 is pushed to be locked and positioned by rotating and adjusting the inner hexagonal cylindrical head screw 9;
and fourthly, observing whether the surface of the motor rotor 1 is damaged or not, and hoisting the motor rotor 1 back to the interior of the motor after the work is finished.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (10)
1. The utility model provides a vertical electric motor rotor overhauls device which characterized in that: the overhauling device comprises a bracket (2), a support ring (4), a base plate (5), support legs (6), a shaft sleeve (7) and an anti-tilting screw (10);
the support (2) is of a square frame structure and is provided with a middle plane and a lower plane, support legs (6) of the support (2) are fixedly connected with a base plate (5), a support ring (4) is fixed at the center of the middle plane of the support (2), a shaft sleeve (7) is fixed at the center of the lower plane of the support (2), and an anti-tilting screw (10) is arranged at the upper part of the support (2).
2. The vertical motor rotor maintenance device of claim 1, wherein: and an adjusting screw and a locking nut are arranged between the support ring (4) and the bracket (2).
3. The vertical motor rotor maintenance device of claim 2, wherein: the support ring (4) is fixed with a support base plate (3) through a screw, and the support base plate (3) is in contact with the motor rotor (1).
4. The vertical motor rotor maintenance device of claim 3, wherein: support backing plate (3) adopt H62 brass material, avoid hoist and mount transportation in to motor rotor (1) surface cause the damage.
5. The vertical motor rotor maintenance device of claim 4, wherein: the support (2) is fixed with the shaft sleeve (7) through a screw, the shaft sleeve (7) plays roles in hoisting, positioning and guiding, so that the motor rotor (1) and the support (2) are superposed on each other through the whole central line, and the hoisting stability is ensured.
6. The vertical motor rotor maintenance device of claim 5, wherein: the support (2) eliminates the shaking of the support (2) caused by uneven field through adjusting screws.
7. The vertical motor rotor maintenance device of claim 6, wherein: the upper part of the bracket (2) is provided with 4 anti-tilting screw rods (10), and the anti-tilting screw rods (10) are pushed by rotating the screws (9) to avoid the lateral tilting of the motor rotor (1).
8. The vertical motor rotor maintenance device of claim 7, wherein: the top of the anti-tilt screw (10) is provided with an arc backing plate (8), and the arc backing plate (8) is fixedly connected with the anti-tilt screw (10) through a bolt.
9. The vertical motor rotor maintenance device of claim 8, wherein: the arc backing plate (8) adopt PA66 material, avoid causing insulating varnish damage when the contact with electric motor rotor (1) coil.
10. A method of servicing a vertical motor rotor servicing device according to claim 9, characterized in that: the method comprises the following steps:
hoisting a support (2) to an overhaul site, and locking the support (2) after the support is adjusted and stabilized;
secondly, the motor rotor (1) is placed on a support ring (4) on the maintenance support (2), a level gauge is placed on the upper end face of the support ring (4) for levelness adjustment, and the shaft sleeve (7) is fixed with the support (2);
thirdly, after the motor rotor (1) is located, the anti-tilting screw (10) is pushed to be locked and positioned by rotating the adjusting inner hexagonal cylindrical head screw (9);
and fourthly, observing whether the surface of the motor rotor (1) is damaged or not, and hoisting the motor rotor (1) back to the interior of the motor after the work is finished.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011573073.1A CN112636550A (en) | 2020-12-25 | 2020-12-25 | Vertical motor rotor overhauling device and method |
| RU2021126205A RU2770177C1 (en) | 2020-12-25 | 2021-09-06 | Device for repairing the rotor of a vertical electric motor and repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011573073.1A CN112636550A (en) | 2020-12-25 | 2020-12-25 | Vertical motor rotor overhauling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112636550A true CN112636550A (en) | 2021-04-09 |
Family
ID=75325577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011573073.1A Pending CN112636550A (en) | 2020-12-25 | 2020-12-25 | Vertical motor rotor overhauling device and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112636550A (en) |
| RU (1) | RU2770177C1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8914156D0 (en) * | 1989-06-20 | 1989-08-09 | Refurbished Turbine Components | Apparatus for use in the repair of machines |
| KR100623200B1 (en) * | 2005-02-22 | 2006-09-14 | 수자원기술 주식회사 | Disassemble examination and repair method and apparatus for motor |
| UA92299U (en) * | 2014-03-11 | 2014-08-11 | Вячеслав Павлович Насулич | Method for repairing electric motor |
| RU194368U1 (en) * | 2019-09-30 | 2019-12-09 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Device for fixing the stator of an electric motor during repair work |
-
2020
- 2020-12-25 CN CN202011573073.1A patent/CN112636550A/en active Pending
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2021
- 2021-09-06 RU RU2021126205A patent/RU2770177C1/en active
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| Publication number | Publication date |
|---|---|
| RU2770177C1 (en) | 2022-04-14 |
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