CN207968105U - Variable-ratio pumped-storage power generation rotor core compressing structure - Google Patents
Variable-ratio pumped-storage power generation rotor core compressing structure Download PDFInfo
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- CN207968105U CN207968105U CN201820497358.3U CN201820497358U CN207968105U CN 207968105 U CN207968105 U CN 207968105U CN 201820497358 U CN201820497358 U CN 201820497358U CN 207968105 U CN207968105 U CN 207968105U
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Abstract
The purpose of this utility model is to disclose a kind of variable-ratio pumped-storage power generation rotor core compressing structure, is made of rotor core, upper tooth support, lower tooth support, core through screw rod, disk spring, sleeve, insulating washer, steel washer, nut.Core through screw rod is located at the yoke portion of rotor core, and the position of centre of gravity of the punching of the compression force effect of rotor core, more conducively pressing force is made to be evenly distributed in entire punching；Simultaneously using the butterfly spring with elastic reserve function, empty gap when can compensate for the paint film contraction and installation of punching between punching becomes smaller, and rotor core is kept to have constant pressing force.This utility model structure, after can solving unit long-play, rotor core pretightning force become smaller alter piece cut bad rotor windings insulation and cause ground short circuit or phase fault, ensure variable-ratio pumped-storage power generation motor reliability service, while the utility model structure have the characteristics that it is simple in structure, easy for installation.
Description
Technical field
The utility model is related to pumped-storage power generation motor technology fields, provide a kind of variable-ratio pumped-storage power generation electricity
Motivation rotor core compressing structure.
Background technology
Rotor core is an important component of variable-ratio pumped-storage power generation motor rotor, it is main group of magnetic circuit
At part and to fixed rotor winding；In unit operation, rotor core will be by the comprehensive of centrifugal force, thermal stress and electromagnetic force
Cooperation is used.Since variable-ratio pump-storage generator change working is complicated, start and stop is frequent, and rotor core, which is chronically at, expands with heat and contract with cold
State, the paint film of iron-core lamination are shunk, and empty gap when installation between punching becomes smaller, and the pretightning force of iron core is caused to become smaller, punching it
Between frictional force cannot overcome its centrifugal force, iron-core lamination will generate opposite play, and the punching rotor windings easy to wear of play are exhausted
Edge causes rotor windings ground short circuit or phase fault.Therefore, suitable rotor core compressing structure, control is selected to turn
The pressing force of sub- iron core, avoiding rotor core from altering piece and cut rotor windings and insulate leads to accident, is variable-ratio pumped-storage power generation
The major issue that electric motors face.
Invention content
The purpose of this utility model is to disclose a kind of variable-ratio pumped-storage power generation rotor core compressing structure,
Have the characteristics that simple in structure, easy for installation.
The technical solution of the utility model is：
By rotor core (1), upper tooth support (2), lower tooth support (3), core through screw rod (4), disk spring (5), sleeve
(6), insulating washer (7), steel washer (8), nut (9) composition, rotor core (1) by be coated with insulation paint film high strength silicon steel sheet
It pushes the wrong the forward and reverse cycle closed assembly of a pole span to form, rotor core (1) upper/lower terminal is respectively provided with tooth support (2) and lower tooth
Pressing plate (3), core through screw rod (4) pass through the yoke portion of rotor core (1), and the upper end of core through screw rod (4) is equipped with disk spring (5), set
Cylinder (6), insulating washer (7), steel washer (8), nut (9), lower end is equipped with insulating washer (7), steel washer (8), nut (9).
The core through screw rod (4) is made of high-yield strength round steel outer surface wrapping insulating materials.
Technique effect
Variable-ratio pumped-storage power generation rotor core compressing structure, core through screw rod are located at the yoke portion of rotor core,
The pressing force of rotor core is set to act on the position of centre of gravity of punching, more conducively pressing force is evenly distributed in entire punching；Simultaneously
Using the butterfly spring with elastic reserve function, the empty gap when paint film that can compensate for punching shrinks and installs between punching becomes
It is small, keep rotor core that there is constant pressing force.It adopts the structure, after unit long-play can be solved, rotor core
Pretightning force alters piece and cuts the problem of bad rotor windings insulate and cause ground short circuit or phase fault after becoming smaller, guarantee can
Speed change pumped-storage power generation motor reliability service, at the same the utility model structure have the characteristics that it is simple in structure, easy for installation.
Description of the drawings
The sectional view of Fig. 1 the utility model.
Fig. 2 is the A enlarged drawings of Fig. 1.
Component label declaration in attached drawing：
1. rotor core；Tooth support on 2.；3. lower tooth support；4. core through screw rod；5. disk spring；6. sleeve；7. insulation
Washer；8. steel washer；9. nut
Specific implementation mode
Fig. 1 and a kind of variable-ratio pumped-storage power generation rotor core compressing structure shown in Fig. 2, by rotor core
1, upper tooth support 2, lower tooth support 3, core through screw rod 4, disk spring 5, sleeve 6, insulating washer 7, steel washer 8, nut 9 form.
Rotor core 1 pushes the wrong the forward and reverse cycle closed assembly of a pole span by the high strength silicon steel sheet for being coated with insulation paint film and forms, upper/lower terminal
It is respectively provided with tooth support 2 and lower tooth support 3, lower end is equipped with insulating washer 7, steel washer 8, nut 9；Core through screw rod (4) is by height
Yield strength round steel outer surface wrapping insulating materials is made, and passes through the yoke portion of rotor core 1, makes the pressing force of rotor core 1
The position of centre of gravity of punching is acted on, more conducively pressing force is evenly distributed in entire punching；The upper end of core through screw rod 4 is equipped with dish
Spring 5, sleeve 6, insulating washer 7, steel washer 8, nut 9；Butterfly spring 4 has elastic reserve function, can compensate for punching
Empty gap when paint film shrinks and installs between punching becomes smaller, and rotor core 1 is kept to have constant pressing force.
Claims (2)
1. a kind of variable-ratio pumped-storage power generation rotor core compressing structure, which is characterized in that by rotor core (1),
Upper tooth support (2), lower tooth support (3), core through screw rod (4), disk spring (5), sleeve (6), insulating washer (7), steel washer
(8), nut (9) forms, and rotor core (1) pushes the wrong a forward and reverse cycle of pole span by the high strength silicon steel sheet for being coated with insulation paint film
Closed assembly forms, and rotor core (1) upper/lower terminal is respectively provided with tooth support (2) and lower tooth support (3), and core through screw rod (4) passes through
The yoke portion of rotor core (1), the upper end of core through screw rod (4) is equipped with disk spring (5), sleeve (6), insulating washer (7), steel washer
(8), nut (9), lower end is equipped with insulating washer (7), steel washer (8), nut (9).
2. a kind of variable-ratio pumped-storage power generation rotor core compressing structure according to claim 1, feature
It is, core through screw rod (4) is made of high-yield strength round steel outer surface wrapping insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820497358.3U CN207968105U (en) | 2018-04-10 | 2018-04-10 | Variable-ratio pumped-storage power generation rotor core compressing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820497358.3U CN207968105U (en) | 2018-04-10 | 2018-04-10 | Variable-ratio pumped-storage power generation rotor core compressing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207968105U true CN207968105U (en) | 2018-10-12 |
Family
ID=63727339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820497358.3U Active CN207968105U (en) | 2018-04-10 | 2018-04-10 | Variable-ratio pumped-storage power generation rotor core compressing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207968105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187246A (en) * | 2019-05-31 | 2019-08-30 | 南方电网调峰调频发电有限公司 | A kind of seawater variable-ratio generator motor rotor core magnetic examination method |
| CN111864953A (en) * | 2020-07-28 | 2020-10-30 | 哈电发电设备国家工程研究中心有限公司 | Variable-speed pumped storage generator set rotor winding end fixing structure |
-
2018
- 2018-04-10 CN CN201820497358.3U patent/CN207968105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187246A (en) * | 2019-05-31 | 2019-08-30 | 南方电网调峰调频发电有限公司 | A kind of seawater variable-ratio generator motor rotor core magnetic examination method |
| CN111864953A (en) * | 2020-07-28 | 2020-10-30 | 哈电发电设备国家工程研究中心有限公司 | Variable-speed pumped storage generator set rotor winding end fixing structure |
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