CN109067022A - It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap - Google Patents
It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap Download PDFInfo
- Publication number
- CN109067022A CN109067022A CN201810963886.8A CN201810963886A CN109067022A CN 109067022 A CN109067022 A CN 109067022A CN 201810963886 A CN201810963886 A CN 201810963886A CN 109067022 A CN109067022 A CN 109067022A
- Authority
- CN
- China
- Prior art keywords
- supporting rib
- voussoir
- eliminating
- iron core
- vertical bar
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Frames (AREA)
Abstract
It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap, it is related to technical field of generators, including two symmetrically arranged adjusting brackets, the adjusting bracket includes vertical bar, cross tube and voussoir, and cross tube is wherein equipped on the upside of vertical bar, is equipped with voussoir on the downside of the vertical bar, the voussoir of two adjusting brackets is inserted between supporting rib and stator core respectively, it is equipped with through-hole on cross tube, bolt is installed in two opposite through-holes, is fastened with nut on bolt.The device accurate and effective can eliminate stator supporting rib with iron core gap, and have certain DATA REASONING function.It can be rapidly performed by the processing for loosening noise abatement in unit maintenance, it is safe and reliable to guarantee that unit is run again.
Description
Technical field
The present invention relates to technical field of generators, specifically a kind of for eliminating Generator Stator iron core and branch
Support the device in muscle gap.
Background technique
There are a certain amount of gaps between electricity generator stator core and supporting rib, in prolonged operation, by electromagnetic field
Caused vibration can be such that supporting rib and stator core stamping sheet gap is gradually increased, and noise and vibration can be gradually increased, and influence unit
It operates normally.
It there is no the locking noise-decreasing device for eliminating this hidden danger during unit maintenance at present.
Summary of the invention
To solve the shortcomings of the prior art, the invention discloses one kind for eliminate Generator Stator iron core with
The device in supporting rib gap, by this device can the accurate and effective stator core gap for after longtime running eliminated, and
Can have certain measurement detection function in next maintenance down.
The technical scheme adopted by the invention to solve the technical problem is that:
It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap, be placed on supporting rib and stator iron
Between core, stator core includes iron-core workpiece, and the iron-core workpiece is equipped with several dovetail grooves, is plugged with supporting rib in dovetail groove, is wrapped
Two symmetrically arranged adjusting brackets are included, the adjusting bracket includes vertical bar, cross tube and voussoir, and upper cross is wherein equipped on the upside of vertical bar
Bar, the vertical bar downside are equipped with voussoir, and the voussoir of two adjusting brackets is inserted between supporting rib and stator core respectively, upper
Cross bar is equipped with through-hole, is equipped with bolt in two opposite through-holes, is fastened with nut on bolt.
Further, lower guide plate is equipped on the downside of the cross tube, the lower guide plate is equipped with pilot hole, the bolt
Across pilot hole.
Further, it is equipped with shaft on the downside of the vertical bar, is rotatably connected to voussoir in the shaft, the voussoir is connected with
Lower platen is equipped with extension plate on vertical bar, and mandril screw, the mandril screw and lower platen phase are equipped on the extension plate
Contact.
Further, it is equipped with shrinkage pool at the top of the vertical bar, is connected with through-hole on one, the voussoir in the lower shrinkage pool
It is equipped with one layer of rubber membrane, a check valve is equipped at lower shrinkage pool.
Further, the lower shrinkage pool inner wall is equipped with guide groove, is sliding combined with lifting sealing shroud, institute in the guide groove
It states lifting sealing shroud and is equipped with check valve.
Further, the recessed hole shape can be rectangle, square or circle.
Further, the check valve is in recessed hole bottom.The beneficial effects of the present invention are:
1, the gap eliminator accurate and effective can eliminate stator supporting rib and iron core gap, and have
Certain DATA REASONING function.It can be rapidly performed by the processing for loosening noise abatement in unit maintenance, guarantee what unit was run again
Securely and reliably.
2, lower guide plate designs, and ensure that each position uniform force of adjusting bracket, avoids causing vertical bar when bolt fastening
Torsion is excessive, adaptability to changes is excessive there is accident.And have the design of lower guide plate, it is more convenient to measure gap.Pass through spiral shell
How much the screw of bolt can estimate gap size, measure without additional means.
3, rubber membrane and check valve Combination Design, using injection air or liquid in guide valve down shrinkage pool, so that
Pressure increases in upper through-hole, and deformation occurs for compressing rubber membrane, so that rubber membrane is tightly attached between electricity generator stator core and supporting rib
Gap surface, fills up gap.
4, sealant flowing squeeze design, can compensation means elimination gap deficiency, fill up gap.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the three dimensional structure diagram of stator core；
Fig. 3 is the partial enlarged view in Fig. 1 at A；
Fig. 4 is the structural schematic diagram of voussoir second embodiment；
Fig. 5 is the structural schematic diagram of the 3rd embodiment of voussoir；
Specific embodiment
It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap, be placed on supporting rib and stator iron
Between core, for adjusting the two gap.The device is not only applicable to large-scale generator, is equally applicable to phase modifier.
As shown in Figure 1 to Figure 3, stator core includes iron-core workpiece 11, and the iron-core workpiece is equipped with several dovetail grooves 12, dovetail
Supporting rib 2 is plugged in slot, this is the prior art, is not introduced excessively.
The device for being used to eliminate electricity generator stator core Yu supporting rib gap, including two symmetrically arranged adjusting brackets 3,
The adjusting bracket includes vertical bar 31, cross tube 32 and voussoir 34, and cross tube 32 is wherein equipped on the upside of vertical bar, is set on the downside of the vertical bar
There is voussoir 34, the voussoir of two adjusting brackets is inserted between supporting rib and stator core respectively, through-hole is equipped on cross tube,
Bolt is installed in two opposite through-holes, nut is fastened on bolt, and by adding disc spring adjustment bolt to clamp, left and right voussoir
After being adjacent to filling gap, finally fastening is tensed, and guarantees the final elimination in gap；Simultaneously with clearance gauge between two cross tube measuring surface
Gap is measured and is recorded, and provides certain data foundation for maintenance down next time.
The optimization design of scheme, the cross tube downside are equipped with lower guide plate 33, and the lower guide plate is equipped with pilot hole,
The bolt passes through pilot hole.
This design ensure that each position uniform force of adjusting bracket, avoid causing torsion mistake to vertical bar when bolt fastening
Greatly, adaptability to changes is excessive there is accident.
And have the design of lower guide plate, it is more convenient to measure gap.How much can be estimated by the screw of bolt
Gap size is measured without additional means.
As shown in figure 4, being equipped with shaft 37 on the downside of the vertical bar, voussoir 34, the voussoir are rotatably connected in the shaft
It is connected with lower platen 39, extension plate 38 is installed on vertical bar, mandril screw 310, the mandril are installed on the extension plate
Screw can be in contact with lower platen, and the angular deflection of voussoir can be driven when rotating down pressing mandril screw.
As shown in figure 5, being equipped with shrinkage pool 41 at the top of the vertical bar, through-hole 44 on one, institute are connected in the lower shrinkage pool
Voussoir is stated equipped with one layer of rubber membrane, a check valve 46 is equipped at lower shrinkage pool.
Working principle, so that pressure increases in upper through-hole, oppresses rubber using air is injected in guide valve down shrinkage pool
Deformation occurs for film, so that rubber membrane is tightly attached to electricity generator stator core and supporting rib clearance surface, fills up gap.
Except for the technical features described in the specification, it all is technically known to those skilled in the art.
Claims (7)
1. it is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap, it is placed on supporting rib and stator core
Between, stator core includes iron-core workpiece, and the iron-core workpiece is equipped with several dovetail grooves, is plugged with supporting rib in dovetail groove, special
Sign is, including two symmetrically arranged adjusting brackets, and the adjusting bracket includes vertical bar, cross tube and voussoir, wherein on the upside of vertical bar
Equipped with cross tube, voussoir is equipped on the downside of the vertical bar, the voussoir of two adjusting brackets is inserted into supporting rib and stator core respectively
Between, it is equipped with through-hole on cross tube, bolt is installed in two opposite through-holes, is fastened with nut on bolt.
2. according to claim 1 for eliminating the device of Generator Stator iron core Yu supporting rib gap, feature
It is, lower guide plate is equipped on the downside of the cross tube, and the lower guide plate is equipped with pilot hole, and the bolt passes through pilot hole.
3. according to claim 1 for eliminating the device of Generator Stator iron core Yu supporting rib gap, feature
It is, shaft is equipped on the downside of the vertical bar, is rotatably connected to voussoir in the shaft, and the voussoir is connected with lower platen, perpendicular
Extension plate is installed on bar, mandril screw is installed on the extension plate, the mandril screw is in contact with lower platen.
4. according to claim 1 for eliminating the device of Generator Stator iron core Yu supporting rib gap, feature
It is, shrinkage pool is equipped at the top of the vertical bar, through-hole on one is connected in the lower shrinkage pool, the voussoir is equipped with one layer of rubber
Glue film is equipped with a check valve at lower shrinkage pool.
5. according to claim 4 for eliminating the device of Generator Stator iron core Yu supporting rib gap, feature
It is, the lower shrinkage pool inner wall is equipped with guide groove, is sliding combined with lifting sealing shroud, the lifting sealing shroud in the guide groove
It is equipped with check valve.
6. according to claim 4 for eliminating the device of Generator Stator iron core Yu supporting rib gap, feature
It is, the recessed hole shape can be rectangle, square or circle.
7. according to claim 4 for eliminating the device of Generator Stator iron core Yu supporting rib gap, feature
It is, the check valve is in recessed hole bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963886.8A CN109067022B (en) | 2018-08-22 | 2018-08-22 | It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963886.8A CN109067022B (en) | 2018-08-22 | 2018-08-22 | It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109067022A true CN109067022A (en) | 2018-12-21 |
| CN109067022B CN109067022B (en) | 2019-10-11 |
Family
ID=64756600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810963886.8A Active CN109067022B (en) | 2018-08-22 | 2018-08-22 | It is a kind of for eliminating the device of Generator Stator iron core Yu supporting rib gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109067022B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688446A (en) * | 2020-12-15 | 2021-04-20 | 上海电气电站设备有限公司 | Radial tightening and reinforcing device for stator iron core of steam turbine generator |
| CN114337011A (en) * | 2022-01-06 | 2022-04-12 | 哈尔滨电机厂有限责任公司 | Radial wedging positioning rib vibration abnormal sound eliminating structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8519138D0 (en) * | 1984-09-14 | 1985-09-04 | Gen Electric | Dynamoelectric machine stator |
| US4634909A (en) * | 1984-08-08 | 1987-01-06 | Bbc Brown, Boveri & Company Limited | Electric machine |
| CN102383497A (en) * | 2011-08-11 | 2012-03-21 | 北京市古代建筑研究所 | Disc type expander and use method thereof |
| CN103109441A (en) * | 2010-08-20 | 2013-05-15 | 西门子能量股份有限公司 | Methods and apparatuses for attaching a stator core to a generator frame |
| CN104455956A (en) * | 2014-12-31 | 2015-03-25 | 中国重型机械研究院股份公司 | Mechanical fixing tensioning device composed of three iron wedges |
-
2018
- 2018-08-22 CN CN201810963886.8A patent/CN109067022B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4634909A (en) * | 1984-08-08 | 1987-01-06 | Bbc Brown, Boveri & Company Limited | Electric machine |
| GB8519138D0 (en) * | 1984-09-14 | 1985-09-04 | Gen Electric | Dynamoelectric machine stator |
| CN103109441A (en) * | 2010-08-20 | 2013-05-15 | 西门子能量股份有限公司 | Methods and apparatuses for attaching a stator core to a generator frame |
| CN102383497A (en) * | 2011-08-11 | 2012-03-21 | 北京市古代建筑研究所 | Disc type expander and use method thereof |
| CN104455956A (en) * | 2014-12-31 | 2015-03-25 | 中国重型机械研究院股份公司 | Mechanical fixing tensioning device composed of three iron wedges |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688446A (en) * | 2020-12-15 | 2021-04-20 | 上海电气电站设备有限公司 | Radial tightening and reinforcing device for stator iron core of steam turbine generator |
| CN114337011A (en) * | 2022-01-06 | 2022-04-12 | 哈尔滨电机厂有限责任公司 | Radial wedging positioning rib vibration abnormal sound eliminating structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109067022B (en) | 2019-10-11 |
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