CN201181889Y - Stator core strain structure of hydraulic turbogenerator - Google Patents
Stator core strain structure of hydraulic turbogenerator Download PDFInfo
- Publication number
- CN201181889Y CN201181889Y CNU2008200740608U CN200820074060U CN201181889Y CN 201181889 Y CN201181889 Y CN 201181889Y CN U2008200740608 U CNU2008200740608 U CN U2008200740608U CN 200820074060 U CN200820074060 U CN 200820074060U CN 201181889 Y CN201181889 Y CN 201181889Y
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- CN
- China
- Prior art keywords
- tooth support
- tooth
- flabellate
- iron core
- core laminations
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- Expired - Fee Related
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a stator core-tensioning structure of a hydraulic generator, which comprises an upper tooth support, a lower tooth support, flabellate core laminations, tooth pressure strips and a tensioning screw rod; wherein, the flabellate core laminations are stacked between the upper and the lower tooth supports; the tooth pressure strips are respectively assembled on the lower side of the upper tooth support and the upper side of the lower tooth support; and the tensioning screw rod has a tightening function. The structure is characterized in that: the tensioning screw rod is positioned in the field yoke of the flabellate core laminations and passes through the upper tooth support, the stacked flabellate core laminations, the tooth pressure strips and the lower tooth support; both ends of the tensioning screw rod are provided with locking nuts; and a laminated spring is arranged between each locking nut and each tooth support. The tensioning screw rod of the structure can apply 100 percent of pressure on the flabellate core laminations, thus ensuring the steady stacking of the flabellate core laminations of a stator during the operation of the generator, and effectively preventing the flabellate core laminations from moving to damage the main insulation of a coil and further cause accidents such as the earthing short circuit of the generator. Moreover, the structure has the advantages of simple structure, low cost, convenient assembly and disassembly,and the like.
Description
Technical field
The utility model belongs to hydraulic generator and makes the field, particularly relates to a kind of hydraulic turbogenerator stator iron core tension structure.
Background technology
Stator core is a vitals of generator unit stator, laminates the key component of quality and stator core tightening screw rods is an iron core.In order to prevent to press-fit in the process at iron core, except that the size that requires to reach certain, to guarantee that also iron core has certain dress compaction degree owing to mechanical oscillation, variations in temperature and electromagnetism comprehensive function cause core slackness.But pressure is unsuitable too high because hypertonia can make insulation and punching damage, and the axial pressing force of iron core to be stretching screw by tooth support and fastening nut guarantee.Therefore selecting for use Analysis on Stress to calculate stretching screw from structural configuration, material all sets up successive check, is strict with.On structural configuration, usually adopt the stator core back that stretching screw structure (as Fig. 1) is installed, clamping screw is positioned at the iron core back, the stator core fanning strip is compressed with nut by upper and lower tooth support, by adjusting screw rod the top board rear portion is lifted again, further by the tooth pressure bar iron core teeth portion is compressed with tooth support.Adopt the pressure of said structure clamping screw to have only 50% to act on the iron core fanning strip, like this at motor in when operation, do not press tightly because the stator core fanning strip is folded, the iron core fanning strip produces and moves, broken ring coil main insulation and then cause the generation of accidents such as motor shorted to earth, said structure complexity, cost height in addition, the installing/dismounting inconvenience.
Summary of the invention
The utility model provides a kind of hydraulic turbogenerator stator iron core simple in structure, easy installation and removal to strain structure for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of hydraulic turbogenerator stator iron core tension structure, comprise tooth support, down tooth support, go up closed assembly between tooth support and the following tooth support the iron core fanning strip, be installed in tooth pressure bar on tooth support lower end and the following tooth support and the stretching screw that plays the role of fastening, it is characterized in that: described stretching screw is positioned at iron core fanning strip yoke portion, stretching screw runs through iron core fanning strip, tooth pressure bar and the following tooth support of tooth support, closed assembly, the two ends of stretching screw are provided with locking nut, also are provided with folded spring between locking nut and the tooth support.
The utility model can also adopt following technical measures:
Be provided with insulating case between the iron core fanning strip of described stretching screw and closed assembly.
Advantage and the good effect that the utlity model has are: because stretching screw is positioned at iron core fanning strip yoke portion, stretching screw runs through iron core fanning strip, tooth pressure bar and the following tooth support of tooth support, closed assembly, strain by locking nut at the two ends of stretching screw, also is provided with the folded spring of regulating pressure between locking nut and the tooth support.Adopt the pressure of said structure stretching screw 100% to act on the iron core fanning strip, guarantee that like this motor is when operation, the stability that the stator core fanning strip laminates, effectively avoided because the iron core fanning strip produce to move, destroyed coil main insulation and then cause the generation of accidents such as motor shorted to earth; Wearing and tearing and leakage field in order to prevent that stretching screw causes the iron core fanning strip when the unit operation also are provided with insulating case between the iron core fanning strip of stretching screw and closed assembly.Said structure is simple in addition, cost is low, advantages such as easy installation and removal.
Description of drawings
Fig. 1 is the prior art structural representation;
Fig. 2 is the utility model structural representation;
Fig. 3 is an I portion enlarged drawing among Fig. 2.
Among the figure: 1, stretching screw; 2, locking nut; 3, folded spring; 4, go up tooth support; 5, tooth pressure bar; 6, iron core fanning strip; 7, following tooth support; 8, insulating case.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 2 and Fig. 3, the iron core fanning strip 6 of closed assembly between last tooth support 4 and the following tooth support 7, at last tooth support 4 lower ends and following tooth support upper end 7 pad toothing press strips 5, its stretching screw 1 is positioned at the good iron core fanning strip of closed assembly 6 yoke portions, stretching screw 1 runs through tooth support 4, tooth pressure bar 5, the iron core fanning strip 6 of closed assembly and following tooth support 7, the two ends of stretching screw 1 are by locking nut 2 lockings, in order to guarantee that generator stretching screw 1 when moving keeps certain clearance with iron core fanning strip 6, between the iron core fanning strip 6 of stretching screw 1 and closed assembly, also be provided with insulating case 8, also be provided with folded spring 3 between locking nut 2 and the tooth support 5, therefore the pressure of stretching screw 100% acts on the iron core fanning strip in the said structure, guarantee that like this motor is when operation, the stability that the stator core fanning strip laminates, effectively avoided because the iron core fanning strip produce to move, destroyed coil main insulation and then cause the generation of accidents such as motor shorted to earth.
Claims (2)
1. a hydraulic turbogenerator stator iron core is strained structure, comprise tooth support, down tooth support, go up closed assembly between tooth support and the following tooth support the iron core fanning strip, be installed in tooth pressure bar on tooth support lower end and the following tooth support and the stretching screw that plays the role of fastening, it is characterized in that: described stretching screw is positioned at iron core fanning strip yoke portion, stretching screw runs through iron core fanning strip, tooth pressure bar and the following tooth support of tooth support, closed assembly, the two ends of stretching screw are provided with locking nut, also are provided with folded spring between locking nut and the tooth support.
2. hydraulic turbine generating stator core tightening structure according to claim 1 is characterized in that: be provided with insulating case between the iron core fanning strip of described stretching screw and closed assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200740608U CN201181889Y (en) | 2008-03-14 | 2008-03-14 | Stator core strain structure of hydraulic turbogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200740608U CN201181889Y (en) | 2008-03-14 | 2008-03-14 | Stator core strain structure of hydraulic turbogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181889Y true CN201181889Y (en) | 2009-01-14 |
Family
ID=40251382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200740608U Expired - Fee Related CN201181889Y (en) | 2008-03-14 | 2008-03-14 | Stator core strain structure of hydraulic turbogenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181889Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949673A (en) * | 2010-08-06 | 2011-01-19 | 天津市天发重型水电设备制造有限公司 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
| CN102447359A (en) * | 2010-10-12 | 2012-05-09 | 哈尔滨电机厂有限责任公司 | Technological method for assembling stator core of steam-turbine generator outside machine base |
| CN102510182A (en) * | 2011-11-19 | 2012-06-20 | 中电电机股份有限公司 | Auxiliary laminating device for segmental stator iron core |
| CN104779752A (en) * | 2015-04-28 | 2015-07-15 | 湖南云箭科技有限公司 | Stator floating iron core locating and tensioning device and stator floating iron core installing method |
| CN105262288A (en) * | 2015-11-09 | 2016-01-20 | 哈尔滨电气动力装备有限公司 | A shield motor rotor pack aligning tool |
| CN109088488A (en) * | 2018-10-31 | 2018-12-25 | 德阳市东方恒运电机有限公司 | A kind of stator iron core structure of water turbine generator and its forming method |
-
2008
- 2008-03-14 CN CNU2008200740608U patent/CN201181889Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949673A (en) * | 2010-08-06 | 2011-01-19 | 天津市天发重型水电设备制造有限公司 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
| CN101949673B (en) * | 2010-08-06 | 2013-03-20 | 天津市天发重型水电设备制造有限公司 | Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator |
| CN102447359A (en) * | 2010-10-12 | 2012-05-09 | 哈尔滨电机厂有限责任公司 | Technological method for assembling stator core of steam-turbine generator outside machine base |
| CN102510182A (en) * | 2011-11-19 | 2012-06-20 | 中电电机股份有限公司 | Auxiliary laminating device for segmental stator iron core |
| CN102510182B (en) * | 2011-11-19 | 2014-04-09 | 中电电机股份有限公司 | Auxiliary laminating device for segmental stator iron core |
| CN104779752A (en) * | 2015-04-28 | 2015-07-15 | 湖南云箭科技有限公司 | Stator floating iron core locating and tensioning device and stator floating iron core installing method |
| CN105262288A (en) * | 2015-11-09 | 2016-01-20 | 哈尔滨电气动力装备有限公司 | A shield motor rotor pack aligning tool |
| CN105262288B (en) * | 2015-11-09 | 2018-09-21 | 哈尔滨电气动力装备有限公司 | Shielding motor rotor lamination alignment tools |
| CN109088488A (en) * | 2018-10-31 | 2018-12-25 | 德阳市东方恒运电机有限公司 | A kind of stator iron core structure of water turbine generator and its forming method |
| CN109088488B (en) * | 2018-10-31 | 2024-04-16 | 德阳市东方恒运电机有限公司 | Stator core structure of hydraulic generator and forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20120314 |