CN204066970U - A kind of shunt reactor stem stem compresses stopping means - Google Patents
A kind of shunt reactor stem stem compresses stopping means Download PDFInfo
- Publication number
- CN204066970U CN204066970U CN201420579890.1U CN201420579890U CN204066970U CN 204066970 U CN204066970 U CN 204066970U CN 201420579890 U CN201420579890 U CN 201420579890U CN 204066970 U CN204066970 U CN 204066970U
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- CN
- China
- Prior art keywords
- stem
- stopping means
- shunt reactor
- disk spring
- pressing plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to shunt reactor technical field, particularly relates to a kind of shunt reactor stem stem and compresses stopping means.This device comprises and is enclosed within disk spring group, pressing plate and the keeper on stretching screw and the locking nut pressing plate and keeper from top to bottom through above the stretching screw of stem stem and upper yoke and upper yoke, disk spring group peripheral ring is arranged with stopping means, and stopping means is between pressing plate and upper yoke.The utility model, by setting up stopping means on original elastic pressuring clamping device, is guaranteed that spring is out of shape in allowed limits, is prevented long-time 100% deformation from causing Strength Failure, can also prevent spring left and right play simultaneously.
Description
Technical field
The utility model relates to shunt reactor technical field, particularly relates to a kind of shunt reactor stem stem and compresses stopping means.
Background technology
Iron core shunt reactor stem stem is interstitial iron core structure, namely stem stem is formed by multiple independent iron-cored cake and air gap (pottery or marble) staggered closed assembly, under alternating current effect, produce electromagnetic force between adjacent stator core cake, make stem stem periodically Flexible change, thus produce vibration.Therefore, vibration is a key technology difficult problem for iron core shunt reactor.
For reducing vibration of reactor, need set of device to be compressed by whole stem stem, thrust is greater than the electromagnetic force between iron core cake, and this device can adapt to stem stem periodically Flexible change simultaneously.Current industry generally adopts elastic pressuring clamping device, is compressed by stem stem the pressurization of stem stem internal screw by this device.This device mainly comprises butterfly spring group, keeper, stretching screw and nut etc., hollow hydraulic cylinder and frock is used to pressurize to positioner in assembling process, transfer the pressure to disk spring, by nut check, ensure that stem stem bears certain elastic compression power.
Disk spring group is generally the thrust reaching calculating after being driven plain, namely the deflection of disk spring is 100%, and under long-term thrust effect, disk spring is tired, Strength Failure easily, to the effect of elastic compression be weakened, can not ensure that reactor long-term safety is run.
Summary of the invention
For solving the problem, the utility model improves on original stem stem hold down gag basis, provides a kind of shunt reactor stem stem that can limit disk spring group deformation quantity and compresses stopping means.
This shunt reactor stem stem compresses stopping means, comprise and be enclosed within disk spring group, pressing plate and the keeper on stretching screw and the locking nut pressing plate and keeper from top to bottom through above the stretching screw of stem stem and upper yoke and upper yoke, disk spring group peripheral ring is arranged with stopping means, and stopping means is between pressing plate and upper yoke.The utility model is the distortion of restriction disk spring, stopping means is provided with in its periphery, when hydraulic cylinder is exerted pressure to this device, by stopping means effect, make the shape control of disk spring within the specific limits, can prevent spring excessive deformation from causing Strength Failure, the lost of life like this, spring left and right play in compaction process can be prevented again.
Preferably, described stopping means is the spacing steel bushing that lower end is provided with the bottom surface of central aperture, and disk spring thrust is born in its bottom surface, and sidewall bears residual clamping force.First disk spring design parameter is calculated according to reactor safe operating life, after disk spring reaches the deflection of setting, residual clamping force is applied to stem stem by stopping means, so both ensure that stem stem bears disk spring group distortion after total thrust and, in allowed band, also can ensure that disk spring group provides effective elastic compression power in reactor safe operating life.
Described spacing steel bushing medial surface is 3-5mm with the distance of relative disk spring group periphery.
The utility model, by setting up stopping means on original elastic pressuring clamping device, is guaranteed that spring is out of shape in allowed limits, is prevented long-time 100% deformation from causing Strength Failure, can also prevent spring left and right play simultaneously.
Accompanying drawing explanation
Fig. 1 is front sectional view of the present utility model;
In figure, 1, stretching screw, the 2, first keeper, the 3, second keeper, 4, pressing plate, 5, disk spring group, 6, upper yoke, 7, spacing steel bushing, 8, locking nut.
Embodiment
A kind of shunt reactor stem stem compresses stopping means, as shown in the figure, comprise disk spring group 5, pressing plate 4 and the second keeper 3 through being enclosed within from top to bottom above the stretching screw 1 of stem stem and upper yoke 6 and upper yoke 6 on stretching screw, second keeper 3 overcoat has locking nut 8 and the first keeper 2, and disk spring group 5 peripheral ring is arranged with spacing steel bushing 7.Spacing steel bushing 7 lower end is provided with the bottom surface of central aperture.Spacing steel bushing 7 is between pressing plate 4 and upper yoke 6.During design, the installation site of spacing steel bushing need be set according to the deformation parameter of required disk spring group, namely with the distance of disk spring group periphery, experimentally record and be generally 3-5mm and can meet the demands.
Claims (3)
1. a shunt reactor stem stem compresses stopping means, comprise disk spring group (5), pressing plate (4) and the keeper through being enclosed within from top to bottom above the stretching screw (1) of stem stem and upper yoke (6) and upper yoke on stretching screw and the locking nut pressing plate and keeper (8), it is characterized in that: disk spring group (5) peripheral ring is arranged with stopping means, stopping means is positioned between pressing plate (4) and upper yoke (6).
2. shunt reactor stem stem according to claim 1 compresses stopping means, it is characterized in that: described stopping means is the spacing steel bushing (7) that lower end is provided with the bottom surface of central aperture.
3. shunt reactor stem stem according to claim 2 compresses stopping means, it is characterized in that: described spacing steel bushing (7) medial surface is 3-5mm with the distance of relative disk spring group (5) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579890.1U CN204066970U (en) | 2014-10-09 | 2014-10-09 | A kind of shunt reactor stem stem compresses stopping means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579890.1U CN204066970U (en) | 2014-10-09 | 2014-10-09 | A kind of shunt reactor stem stem compresses stopping means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066970U true CN204066970U (en) | 2014-12-31 |
Family
ID=52208427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420579890.1U Expired - Fee Related CN204066970U (en) | 2014-10-09 | 2014-10-09 | A kind of shunt reactor stem stem compresses stopping means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597799A (en) * | 2018-06-04 | 2018-09-28 | 三变科技股份有限公司 | Core of reactor compressing structure and pressing device |
| CN108597796A (en) * | 2018-04-20 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of adjustable multiscrew press-loading apparatus and pressing method |
-
2014
- 2014-10-09 CN CN201420579890.1U patent/CN204066970U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597796A (en) * | 2018-04-20 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of adjustable multiscrew press-loading apparatus and pressing method |
| CN108597799A (en) * | 2018-06-04 | 2018-09-28 | 三变科技股份有限公司 | Core of reactor compressing structure and pressing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID SHANDONG ELECTRIC POWER CORPORATION ZIB Effective date: 20150423 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150423 Address after: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee after: Shandong Power Equipment Company Patentee after: Zibo Power Supply Company of State Grid Shandong Province Electric Power Company Address before: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee before: Shandong Power Equipment Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20181009 |