CN204243926U - Vertical shaft stator iron core of hydraulic generator compressing structure - Google Patents
Vertical shaft stator iron core of hydraulic generator compressing structure Download PDFInfo
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- CN204243926U CN204243926U CN201420756193.9U CN201420756193U CN204243926U CN 204243926 U CN204243926 U CN 204243926U CN 201420756193 U CN201420756193 U CN 201420756193U CN 204243926 U CN204243926 U CN 204243926U
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Abstract
The utility model discloses a kind of vertical shaft stator iron core of hydraulic generator compressing structure, described generator comprises out frame, stator core and ring flat-plate, and described compressing structure comprises the stretching screw with ring flat-plate integrative-structure, and its upper and lower two ends are thread segment; Support column, its sidewall and described ring flat-plate are structure as a whole, and be arranged in parallel with described stretching screw; Upper tooth support, is sheathed on the upper end of described stretching screw, and one end of its lower surface acts in described stator core, and the other end and described support column upper end offset; Lower tooth support, is sheathed on the lower end of described stretching screw, and one end of its upper surface acts in described stator core, and the other end and described support column bottom offset.The utility model stretching screw, support column and out frame assembly welding are into a single integrated structure, and precision is high, and scene does not need to carry out adjusting and insulation processing, flexible for installation, convenient; This structure is not by the restriction of radial dimension unshakable in one's determination simultaneously, and the scope of application is wide in range.
Description
Technical field
The utility model belongs to hydraulic generator field, especially relates to a kind of vertical shaft stator iron core of hydraulic generator compressing structure.
Background technology
Can the stator core of vertical shaft hydraulic generator effectively compress, and directly affects stability and the reliability of unit long-time running.Core pressing adopts the mode of stretching screw to compress usually, and current primary structure form has: 1. traditional lever screw-pressing 2. crossing screw type compression.
Tradition lever screw-pressing is conventional a kind of mode, and the stretching screw of this compacted form, between external diameter unshakable in one's determination and out frame, does not need to carry out screw hole processing to punching.After stator core closed assembly, utilize the adjustment screw of pressing plate end the thrust of bolt to be delivered on iron core and realize stator core compression; During in-site installation, the height of the moment and adjustment bolt that repeatedly need adjust stretching screw and adjustment bolt is to adjust the levelness of pressing plate, if control bad, will have an impact to stator core radius when bolt presses, as the local punching dislocation in core slots portion, perpendicularity change unshakable in one's determination etc.; Support will bear axial thrust.This structure also needs the gap adjusting stretching screw and external diameter unshakable in one's determination simultaneously.Its structure relative complex in general, the process of compression is also cumbersome, and the globality of stretching screw and stator core and out frame is poor;
It is a kind of mode that Vertical axial wheel design is in recent years commonly used that core through screw rod compresses, and stretching screw passes in the middle of stator iron-core lamination, directly acts on iron core by thrust, realizes the compression of stator core.When radial direction unshakable in one's determination is wider, the compression of this structure is effective; Because screw rod passes in the middle of stator iron-core lamination, core through screw rod needs to carry out insulation processing with stator core and support, insulation protection more complicated, manufacture and installation difficulty is also larger, and after unit long-time running, insulate easily damaged, thus cause core through screw rod or stator core local pyrexia, affect the stable operation of unit; When radial direction unshakable in one's determination is narrower, because the upper end of core through screw rod structure is provided with the parts such as disk spring, clamp nut, sleeve, insulating washer; Pressing system axial height is higher, consider that the insulation distance of screw rod and coil requires and the arrangement space of disk spring, often core through screw rod can not be arranged in the position of centre of gravity of punching, and the edge of external diameter unshakable in one's determination must be in, even if now adopt punching compressing structure, because the arm of force change of core through screw rod active force is less, and there is the Moment of core pressing reaction force core through screw rod front end, and it is also not remarkable that it compresses effect; Because considering the impact in core through screw rod hole on magnetic circuit, need the extra frame diameter that increases to ensure that yoke portion magnetic is close in allowed band, core material consumption is bigger than normal compared with other structures; Simultaneously because core through screw rod intended diameter is less, in order to satisfied compression requirement, the screw rod quantity of needs is many and processing request is high.
In addition, because the diameter of large-sized water turbine generator is comparatively large, out frame generally adopts Site Welding structure; Therefore on large tooth support core through screw rod need at the scene by the processing of punching location with hole, processed complex and installation period is long.
Utility model content
The utility model in order to overcome the deficiencies in the prior art, the vertical shaft stator iron core of hydraulic generator compressing structure providing a kind of structure simple, easy for installation.
To achieve these goals, the utility model by the following technical solutions: a kind of vertical shaft stator iron core of hydraulic generator compressing structure, described generator comprises out frame, stator core and ring flat-plate, and described compressing structure comprises
With the stretching screw of ring flat-plate integrative-structure, its upper and lower two ends are thread segment;
Support column, its sidewall and described ring flat-plate are structure as a whole, and be arranged in parallel with described stretching screw;
Upper tooth support, is sheathed on the upper end of described stretching screw, and one end of its lower surface acts in described stator core, and the other end and described support column upper end offset;
Lower tooth support, is sheathed on the lower end of described stretching screw, and one end of its upper surface acts in described stator core, and the other end and described support column bottom offset.
Further, described upper and lower tooth support is connected with stretching screw respectively by locking nut.
As preferably, described stretching screw also comprises the interlude of rectangular configuration, and stretching screw adopts steel plate cutting aft-loaded airfoil to form, and screw rod two is screw thread, and interlude is rectangular configuration, and processing and manufacturing is simple, and economy is superior.
Further, described ring flat-plate is provided with for carrying out spacing groove to described support column.
Described support column and stretching screw are integrative-structure by the mode of welding and ring flat-plate.
The double effect doing positioning bar of stretching screw of the present utility model, can factory in-built to be welded on support and with support one overall processing, well can ensure the requirement such as circularity, perpendicularity of stretching screw, decrease in-site installation adjustment amount, save installation period; Due to overall processing in factory, dependence stator being surveyed to circle frame can be reduced, even can cancel and survey circle frame.Therefore stator both can hang in machine hole after erection bay lamination, also can in Generator hole assembled laminations, alleviate the pressure that erection bay and fitting machine are cheated; The rigidity harmony of stator core and support is better, has cushioning effect to expanding with heat and contract with cold of stator core, thus reduces the distortional stress of stator core and support, effectively can avoid wave degree unshakable in one's determination or iron-core lamination inconsistent phenomenon; Stretching screw is without the need to carrying out insulation processing, and structure is simple, and in-site installation is convenient; The size design of stretching screw is unrestricted, and intensity, the rigidity of screw rod easily ensure, and do not limit requirement to the radial width of iron core, and the scope of application is wide in range.
Support column and ring flat-plate are also welded as a whole in factory, overall processing, and the supporting plane of the installation up and down precision of tooth support is high, and scene does not need to adjust, easy for installation.
In sum, the utility model has the following advantages: the utility model stretching screw, support column and out frame assembly welding are into a single integrated structure, and precision is high, and scene does not need to carry out adjusting and insulation processing, flexible for installation, convenient; This structure is not by the restriction of radial dimension unshakable in one's determination simultaneously, and the scope of application is wide in range.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technical scheme in the utility model embodiment.
As shown in Figure 1, a kind of vertical shaft stator iron core of hydraulic generator compressing structure, described generator comprises out frame 5, stator core 4 and ring flat-plate 6, described compressing structure comprises and the stretching screw 1 of ring flat-plate integrative-structure, support column 7, upper tooth support 2 and lower tooth support 3, stretching screw 1 comprises and is located at the thread segment at two ends and the interlude of rectangular configuration, and the sidewall of interlude and described ring flat-plate are integrative-structure by the mode of welding; The mode that sidewall and the described ring flat-plate of support column 7 also pass through to weld is integrative-structure, and be arranged in parallel with described stretching screw; Upper tooth support 2 is sheathed on the upper end of described stretching screw, is connected with stretching screw by locking nut 1, and one end of its lower surface acts in described stator core 4, and the other end and described support column upper end offset; Lower tooth support 3 is sheathed on the lower end of described stretching screw, is connected with stretching screw by locking nut 1, and one end of its upper surface acts in described stator core 4, and the other end and described support column bottom offset.
By the single stretching screw made and fixed support post according to arrangement requirement Primary Location on out frame, after then carrying out the adjustment such as distribution radius, height and out frame ring flat-plate be welded as a whole; The two ends height carrying out stretching screw internal diameter and fixed support post again carries out overall processing, after on-the-spot closed assembly unshakable in one's determination is good, installs tooth support and nut, directly tight.
Adopt this compressing structure, the processing request of stretching screw is low, and quantity is few, greatly reduces fabrication cycle; Scene adjusts and insulation protection without the need to carrying out, and compact conformation, does not have dependence to fabricating yard, flexible for installation very convenient, alleviates the pressure of field erected workload and fabricating yard, increases work efficiency, and shortens installation period.
Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (5)
1. a vertical shaft stator iron core of hydraulic generator compressing structure, described generator comprises out frame (5), stator core (4) and ring flat-plate (6), it is characterized in that: described compressing structure comprises
With the stretching screw (1) of ring flat-plate integrative-structure, its upper and lower two ends are thread segment;
Support column (7), its sidewall and described ring flat-plate are structure as a whole, and be arranged in parallel with described stretching screw;
Upper tooth support (2), is sheathed on the upper end of described stretching screw, and one end of its lower surface acts in described stator core (4), and the other end and described support column upper end offset;
Lower tooth support (3), is sheathed on the lower end of described stretching screw, and one end of its upper surface acts in described stator core (4), and the other end and described support column bottom offset.
2. vertical shaft stator iron core of hydraulic generator compressing structure according to claim 1, is characterized in that: described upper and lower tooth support is connected with stretching screw respectively by locking nut (1).
3. vertical shaft stator iron core of hydraulic generator compressing structure according to claim 1, is characterized in that: described stretching screw (1) also comprises the interlude of rectangular configuration.
4. vertical shaft stator iron core of hydraulic generator compressing structure according to claim 1, is characterized in that: described ring flat-plate (6) is provided with for carrying out spacing groove to described support column.
5. vertical shaft stator iron core of hydraulic generator compressing structure according to claim 1, is characterized in that: described support column and stretching screw are integrative-structure by the mode of welding and ring flat-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420756193.9U CN204243926U (en) | 2014-12-05 | 2014-12-05 | Vertical shaft stator iron core of hydraulic generator compressing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420756193.9U CN204243926U (en) | 2014-12-05 | 2014-12-05 | Vertical shaft stator iron core of hydraulic generator compressing structure |
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| Publication Number | Publication Date |
|---|---|
| CN204243926U true CN204243926U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420756193.9U Active CN204243926U (en) | 2014-12-05 | 2014-12-05 | Vertical shaft stator iron core of hydraulic generator compressing structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861417A (en) * | 2019-03-05 | 2019-06-07 | 中国电建集团华东勘测设计研究院有限公司 | A kind of stator iron core of hydraulic generator core through screw rod structure |
| AT521062A1 (en) * | 2018-03-21 | 2019-10-15 | Andritz Hydro Gmbh | HYDROPOWER GENERATOR WITH FLEXIBLE STATOR MOUNTING |
| CN113113983A (en) * | 2020-01-13 | 2021-07-13 | 安徽美芝制冷设备有限公司 | Motor, compressor and refrigeration plant |
-
2014
- 2014-12-05 CN CN201420756193.9U patent/CN204243926U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT521062A1 (en) * | 2018-03-21 | 2019-10-15 | Andritz Hydro Gmbh | HYDROPOWER GENERATOR WITH FLEXIBLE STATOR MOUNTING |
| AT521062B1 (en) * | 2018-03-21 | 2019-12-15 | Andritz Hydro Gmbh | HYDROPOWER GENERATOR WITH FLEXIBLE STATOR MOUNT |
| CN109861417A (en) * | 2019-03-05 | 2019-06-07 | 中国电建集团华东勘测设计研究院有限公司 | A kind of stator iron core of hydraulic generator core through screw rod structure |
| CN109861417B (en) * | 2019-03-05 | 2024-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Hydraulic generator stator core through screw rod structure |
| CN113113983A (en) * | 2020-01-13 | 2021-07-13 | 安徽美芝制冷设备有限公司 | Motor, compressor and refrigeration plant |
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